/* roulang page: index */
:root {
            --primary: #2A4B7C;
            --primary-dark: #1E3A5F;
            --primary-soft: #EDF2F8;
            --accent: #D4880F;
            --accent-dark: #C07C0A;
            --canvas: #F6F8FB;
            --card: #FFFFFF;
            --ink: #1B2430;
            --sub: #5B6B7C;
            --faint: #8C9AA8;
            --line: #E3E9F0;
            --success: #2E7D32;
            --radius: 12px;
            --radius-lg: 16px;
            --shadow-sm: 0 1px 3px rgba(26, 44, 68, .05), 0 4px 16px rgba(26, 44, 68, .05);
            --shadow-md: 0 4px 12px rgba(26, 44, 68, .08), 0 12px 32px rgba(26, 44, 68, .07);
            --shadow-lg: 0 8px 20px rgba(26, 44, 68, .08), 0 18px 44px rgba(26, 44, 68, .08);
            --container: 1200px;
            --radius-pill: 999px;
            --speed: .2s cubic-bezier(.22, .68, .18, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans CJK SC", Arial, sans-serif;
            background: var(--canvas);
            color: var(--ink);
            line-height: 1.75;
            font-size: 15px;
            letter-spacing: .01em;
        }

        img,
        svg,
        video {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            background: none;
            border: none;
        }

        .container {
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .small-container {
            max-width: 780px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        ::selection {
            background: rgba(42, 75, 124, .18);
        }

        .focus-ring {
            outline: 3px solid rgba(42, 75, 124, .28);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--line);
            transition: box-shadow .25s ease;
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 10px rgba(26, 44, 68, .04);
        }

        .top-header {
            border-bottom: 1px solid rgba(227, 233, 240, .7);
        }

        .top-header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 66px;
            gap: 14px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            min-width: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: linear-gradient(145deg, #2A4B7C 0%, #1E3A5F 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            letter-spacing: .04em;
            flex: 0 0 auto;
            box-shadow: 0 4px 10px rgba(42, 75, 124, .18);
        }

        .brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.2;
            letter-spacing: -0.01em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .brand-sub {
            font-size: 12px;
            color: var(--faint);
            white-space: nowrap;
            margin-top: 2px;
            letter-spacing: .08em;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search {
            display: none;
            align-items: center;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-pill);
            padding: 9px 16px 9px 14px;
            width: 260px;
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search:hover {
            border-color: #C6D2E0;
        }

        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(42, 75, 124, .09);
        }

        .header-search input {
            border: none;
            outline: none;
            padding: 0 8px;
            flex: 1;
            background: transparent;
            color: var(--ink);
            font-size: 14px;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: var(--faint);
        }

        .mobile-search-btn {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            background: #fff;
            color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border-radius: 10px;
            padding: 11px 22px;
            font-size: 15px;
            border: 1px solid transparent;
            transition: background .2s, transform .2s, box-shadow .2s, color .2s;
            white-space: nowrap;
            line-height: 1.4;
            box-shadow: 0 2px 6px rgba(42, 75, 124, .12);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(42, 75, 124, .18);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible,
        .btn-light:focus-visible {
            outline: 3px solid rgba(212, 136, 15, .35);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid #C9D5E3;
            color: var(--primary);
            background: #fff;
            padding: 11px 22px;
            border-radius: 10px;
            font-weight: 600;
            transition: all .2s;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(42, 75, 124, .08);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            border-radius: 10px;
            font-weight: 700;
            padding: 12px 24px;
            transition: background .2s, transform .2s, box-shadow .2s;
            box-shadow: 0 8px 20px rgba(212, 136, 15, .16);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(212, 136, 15, .22);
        }

        .channel-nav {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            min-height: 48px;
            justify-content: space-between;
            align-items: center;
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex: 0 0 auto;
            height: 36px;
            padding: 0 18px;
            background: transparent;
            border: 1px solid transparent;
            border-radius: var(--radius-pill);
            font-weight: 500;
            font-size: 14px;
            color: var(--sub);
            transition: background .2s, color .2s, border-color .2s;
        }

        .nav-tab:hover {
            background: #EDF3FA;
            border-color: #DDE6F0;
            color: var(--primary);
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(42, 75, 124, .14);
        }

        .nav-tab.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .mobile-search-pop {
            display: none;
            padding: 12px 16px;
            background: #fff;
            border-top: 1px solid var(--line);
        }

        .mobile-search-pop.open {
            display: block;
        }

        .mobile-search-pop input {
            width: 100%;
            border: 1px solid var(--line);
            border-radius: var(--radius-pill);
            padding: 10px 18px;
            font-size: 14px;
            outline: none;
        }

        .mobile-search-pop input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(42, 75, 124, .08);
        }

        @media (min-width: 768px) {
            .header-search {
                display: flex;
            }
            .mobile-search-btn {
                display: none;
            }
        }

        @media (min-width: 1024px) {
            .header-search {
                width: 320px;
            }
        }

        .compact-cta {
            padding: 8px 14px;
            font-size: 14px;
            border-radius: 8px;
        }

        @media (max-width: 640px) {
            .brand-name {
                font-size: 17px;
            }
            .brand-sub {
                display: none;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                border-radius: 10px;
                font-size: 12px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .channel-nav {
                padding-left: 16px;
                padding-right: 16px;
                gap: 6px;
            }
            .nav-tab {
                padding: 0 14px;
                height: 34px;
                font-size: 13px;
            }
            .btn-primary {
                font-size: 14px;
            }
        }

        /* Floating actions */
        .float-actions {
            position: fixed;
            right: 20px;
            bottom: 24px;
            z-index: 45;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: #fff;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: transform .2s, box-shadow .2s, background .2s;
        }

        .float-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .mobile-bottom-cta {
            display: none;
        }

        @media (max-width: 640px) {
            .float-actions {
                display: none;
            }
            .mobile-bottom-cta {
                display: block;
                position: fixed;
                bottom: 16px;
                right: 16px;
                left: 16px;
                z-index: 45;
            }
            .mobile-bottom-cta a {
                width: 100%;
                text-align: center;
                background: var(--primary);
                color: #fff;
                font-weight: 700;
                border-radius: 12px;
                padding: 13px 20px;
                box-shadow: 0 8px 22px rgba(42, 75, 124, .24);
            }
            body {
                padding-bottom: 0;
            }
        }

        /* ===== Hero ===== */
        .hero {
            background:
                radial-gradient(circle at 85% 10%, rgba(212, 136, 15, .08), transparent 300px),
                linear-gradient(180deg, #FFFFFF 0%, #F6F9FD 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--line);
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(42, 75, 124, .035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(42, 75, 124, .035) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
            gap: 48px;
            padding: 72px 0 72px;
            position: relative;
            align-items: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(42, 75, 124, .08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 6px 14px;
        }

        .hero h1 {
            font-size: 38px;
            line-height: 1.28;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: -0.02em;
            margin: 18px 0 16px;
            max-width: 620px;
        }

        .hero-lead {
            font-size: 16px;
            color: var(--sub);
            margin-bottom: 20px;
            max-width: 560px;
        }

        .hero-cta {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px 18px;
            margin-top: 28px;
            color: var(--faint);
            font-size: 13px;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .dot-icon {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .hero-panel {
            border-radius: 22px;
            background: #fff;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--line);
            overflow: hidden;
            transform: rotate(.4deg);
            position: relative;
        }

        .hero-panel__img {
            height: 210px;
            position: relative;
            background: #E8EEF6;
            overflow: hidden;
        }

        .hero-panel__img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-panel__body {
            padding: 22px;
        }

        .hero-panel__title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 12px;
        }

        .hero-panel__list {
            list-style: none;
            display: grid;
            gap: 10px;
        }

        .hero-panel__list li {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--canvas);
            border: 1px solid #EEF2F8;
            border-radius: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--sub);
            font-weight: 500;
        }

        .hero-panel__tag {
            width: 7px;
            height: 7px;
            border-radius: 2px;
            background: var(--accent);
            display: inline-block;
            margin-right: 6px;
        }

        .hero-panel__badge {
            margin-left: auto;
            background: #EAF1FA;
            padding: 3px 8px;
            border-radius: 6px;
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }

        @media (max-width: 1024px) and (min-width: 640px) {
            .hero-inner {
                gap: 32px;
                padding: 56px 0;
            }
            .hero h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 640px) {
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 44px 0 52px;
            }
            .hero h1 {
                font-size: 28px;
                line-height: 1.36;
            }
            .hero-lead {
                font-size: 15px;
            }
            .hero-panel__img {
                height: 160px;
            }
        }

        /* ===== section layout ===== */
        .section {
            padding: 78px 0;
        }

        .section-tight {
            padding: 56px 0;
        }

        .section-head {
            max-width: 660px;
            margin-bottom: 42px;
        }

        .section-head--center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: #E8EFF7;
            border-radius: 6px;
            padding: 6px 12px;
            letter-spacing: .04em;
            margin-bottom: 15px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--ink);
            margin-bottom: 14px;
            letter-spacing: -0.018em;
        }

        .section-desc {
            color: var(--sub);
            font-size: 15px;
            line-height: 1.8;
        }

        @media (max-width: 640px) {
            .section {
                padding: 52px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-head {
                margin-bottom: 30px;
            }
        }

        /* ===== Trust bar ===== */
        .trustbar {
            background: var(--primary-dark);
            color: #fff;
        }

        .trustbar-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
            padding: 24px 0;
        }

        .trustbar-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 0;
        }

        .trustbar-item .num {
            font-size: 30px;
            font-weight: 800;
            letter-spacing: -.02em;
            color: #FBD68A;
            min-width: 90px;
            text-align: center;
        }

        .trustbar-item .txt {
            font-size: 14px;
            color: rgba(255, 255, 255, .75);
            line-height: 1.6;
        }

        .trustbar-item .txt strong {
            display: block;
            color: #fff;
            font-size: 15px;
            margin-bottom: 2px;
        }

        @media (min-width: 768px) {
            .trustbar-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* ===== Feature rows ===== */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 46px;
            align-items: center;
            margin-bottom: 52px;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-media {
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--line);
            height: 300px;
            background: #E6EDF5;
            position: relative;
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .feature-media:hover img {
            transform: scale(1.02);
        }

        .feature-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-content p {
            color: var(--sub);
            margin-bottom: 14px;
        }

        .feature-list {
            list-style: none;
            display: grid;
            gap: 10px;
            margin-top: 12px;
        }

        .feature-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 14px;
            color: var(--ink);
        }

        .feature-list li::before {
            content: "";
            width: 18px;
            height: 18px;
            border-radius: 6px;
            background: rgba(42, 75, 124, .09) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%232A4B7C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 8l3 3 7-7'/%3E%3C/svg%3E") no-repeat center / 12px;
            flex: 0 0 18px;
            margin-top: 3px;
        }

        @media (max-width: 900px) {
            .feature-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-row:nth-of-type(2) .feature-media {
                order: 1;
            }
            .feature-media {
                height: 240px;
            }
        }

        /* ===== Process ===== */
        .process-wrap {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            position: relative;
            padding: 22px 12px 8px 0;
        }

        .process-step::before {
            counter-increment: step;
            content: counter(step, decimal-leading-zero);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary);
            font-weight: 800;
            font-size: 19px;
            margin-bottom: 18px;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }

        .process-line {
            display: none;
        }

        @media (min-width: 900px) {
            .process-step {
                padding-right: 20px;
            }
        }

        @media (max-width: 800px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 30px;
            }
        }

        @media (max-width: 420px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        /* ===== categories ===== */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .cat-card {
            grid-column: span 6;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 26px;
            display: flex;
            gap: 18px;
            transition: transform .2s, box-shadow .2s, border-color .2s;
            align-items: flex-start;
        }

        .cat-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: #D8E2EE;
        }

        .cat-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }

        .cat-card__info {
            min-width: 0;
        }

        .cat-card__info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .cat-card__info p {
            color: var(--sub);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: gap .2s, color .2s;
        }

        .cat-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        @media (max-width: 720px) {
            .cat-card {
                grid-column: span 12;
                padding: 20px;
                flex-direction: column;
            }
        }

        /* ===== Demo preview area ===== */
        .demo-wrap {
            background: var(--primary-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .demo-wrap::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
            background-size: 48px 48px;
        }

        .demo-inner {
            position: relative;
            padding: 78px 0;
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 48px;
            align-items: center;
        }

        .demo-copy h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.35;
        }

        .demo-copy p {
            color: rgba(255, 255, 255, .74);
            margin-bottom: 16px;
        }

        .demo-list {
            list-style: none;
            display: grid;
            gap: 12px;
            margin-top: 22px;
        }

        .demo-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 12px;
            padding: 14px 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, .9);
            line-height: 1.7;
        }

        .demo-list li::before {
            content: "✓";
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(212, 136, 15, .22);
            color: #F7C567;
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            font-size: 12px;
            font-weight: 800;
        }

        .demo-visual {
            border-radius: 22px;
            background: #fff;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, .2);
            position: relative;
        }

        .demo-visual img {
            height: 250px;
            width: 100%;
            object-fit: cover;
            border-bottom: 1px solid #E5EBF2;
        }

        .demo-visual__body {
            padding: 22px;
        }

        .demo-visual__row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid var(--line);
            padding: 12px 0;
            font-size: 14px;
            color: var(--sub);
        }

        .demo-visual__row:last-child {
            border-bottom: none;
        }

        .demo-visual__row span:first-child {
            font-weight: 600;
            color: var(--ink);
        }

        .check-pill {
            background: #EAF4EC;
            color: #2E7D32;
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            padding: 4px 10px;
        }

        @media (max-width: 820px) {
            .demo-inner {
                grid-template-columns: 1fr;
                padding: 52px 0;
                gap: 30px;
            }
            .demo-copy h2 {
                font-size: 25px;
            }
        }

        /* ===== proof ===== */
        .proof-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .proof-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 24px;
            position: relative;
            box-shadow: var(--shadow-sm);
        }

        .proof-logo {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .proof-logo.one {
            background: #5A6F8C;
        }
        .proof-logo.two {
            background: #8A6A4F;
        }
        .proof-logo.three {
            background: #4E6E5E;
        }

        .proof-card blockquote {
            color: var(--sub);
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 18px;
        }

        .proof-meta {
            border-top: 1px solid #EDF1F6;
            padding-top: 14px;
            display: flex;
            justify-content: space-between;
            color: var(--faint);
            font-size: 13px;
        }

        @media (max-width: 800px) {
            .proof-grid {
                grid-template-columns: 1fr;
                max-width: 520px;
                margin: 0 auto;
            }
        }

        /* ===== service/price ===== */
        .service-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .service-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            padding: 28px;
            position: relative;
        }

        .service-card.highlight {
            border: 2px solid var(--accent);
            box-shadow: 0 16px 34px rgba(42, 75, 124, .08);
        }

        .service-card .tag {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .05em;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 800;
            margin: 10px 0 6px;
        }

        .service-card .price-line {
            margin: 14px 0 18px;
        }

        .service-card .price-line .strong {
            font-size: 32px;
            font-weight: 800;
            color: var(--ink);
        }

        .service-card .price-line .unit {
            color: var(--success);
            font-size: 14px;
            font-weight: 600;
            margin-left: 8px;
        }

        .service-list {
            list-style: none;
            display: grid;
            gap: 10px;
            margin: 14px 0 22px;
        }

        .service-list li {
            display: flex;
            gap: 8px;
            font-size: 14px;
            color: var(--sub);
            align-items: flex-start;
        }

        .service-list li::before {
            content: "✓";
            color: var(--success);
            font-weight: 800;
            font-size: 14px;
        }

        .service-note {
            grid-column: 1 / -1;
            background: #F2F6FB;
            border-radius: 14px;
            padding: 18px 22px;
            color: var(--sub);
            font-size: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.75;
        }

        @media (max-width: 780px) {
            .service-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== News / CMS block ===== */
        .news-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: transform .2s, box-shadow .2s;
        }

        .news-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .news-cat {
            background: #EAF1FA;
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            align-self: flex-start;
            letter-spacing: .03em;
        }

        .news-item h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.55;
            color: var(--ink);
        }

        .news-item h3 a:hover {
            color: var(--primary);
        }

        .news-item p {
            color: var(--sub);
            font-size: 14px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--faint);
            margin-top: auto;
            padding-top: 10px;
            border-top: 1px solid #EFF3F8;
        }

        .news-read {
            margin-left: auto;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            gap: 4px;
            align-items: center;
        }

        .empty-tip {
            grid-column: 1 / -1;
            background: #fff;
            border: 1px dashed #CBD5E3;
            border-radius: var(--radius);
            padding: 32px;
            text-align: center;
            color: var(--faint);
            font-size: 15px;
        }

        @media (max-width: 720px) {
            .news-card-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color .2s;
        }

        .faq-item.active {
            border-color: #C6D6E9;
            box-shadow: var(--shadow-sm);
        }

        .faq-btn {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            width: 100%;
            padding: 20px 22px;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            line-height: 1.6;
            background: #fff;
        }

        .faq-btn .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: var(--primary-soft);
            flex: 0 0 auto;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform .25s, background .25s;
            color: var(--primary);
            font-size: 16px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 22px;
            color: var(--sub);
            font-size: 14px;
            line-height: 1.9;
            transition: max-height .3s ease, padding .2s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 22px;
        }

        @media (max-width: 640px) {
            .faq-btn {
                padding: 16px;
                font-size: 14px;
            }
            .faq-answer {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== CTA ===== */
        .bottom-cta {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
            padding: 70px 0;
        }

        .bottom-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
            background-size: 36px 36px;
        }

        .bottom-cta .cta-inner {
            position: relative;
            text-align: center;
        }

        .bottom-cta h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .bottom-cta p {
            color: rgba(255, 255, 255, .8);
            max-width: 540px;
            margin: 0 auto 28px;
            font-size: 15px;
        }

        .bottom-cta .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-light {
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            padding: 12px 26px;
            border-radius: 10px;
            transition: transform .2s, box-shadow .2s;
            box-shadow: 0 8px 20px rgba(0, 0, 0, .14);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(0, 0, 0, .2);
        }

        .btn-ghost-light {
            border: 1px solid rgba(255, 255, 255, .5);
            color: #fff;
            border-radius: 10px;
            padding: 12px 26px;
            font-weight: 600;
            transition: background .2s, border-color .2s;
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .11);
            border-color: #fff;
        }

        @media (max-width: 640px) {
            .bottom-cta h2 {
                font-size: 22px;
            }
            .bottom-cta {
                padding: 46px 0;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #101C2E;
            color: #B7C2D0;
            border-top: 1px solid #22344B;
            position: relative;
            font-size: 14px;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(212, 136, 15, .5), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 36px;
            padding: 58px 0 40px;
        }

        .footer-brand {
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .mark {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(145deg, #3E5A82, #223C60);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
            color: #fff;
        }

        .footer-desc {
            line-height: 1.9;
            color: #8FA0B2;
            margin-bottom: 20px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 700;
            letter-spacing: .06em;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            display: grid;
            gap: 11px;
        }

        .footer-links a {
            color: #8FA0B2;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            display: grid;
            gap: 11px;
            color: #8FA0B2;
        }

        .footer-contact a {
            color: #8FA0B2;
        }

        .footer-contact a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            font-size: 13px;
            color: #718197;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #9AABBE;
        }

        .footer-statement {
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding: 14px 0 20px;
            font-size: 12px;
            line-height: 1.8;
            color: #63758A;
        }

        @media (max-width: 820px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
                padding: 40px 0 24px;
            }
        }

        @media (max-width: 540px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-links {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .skip-link {
            position: absolute;
            left: -999px;
            top: 0;
            background: #fff;
            z-index: 9999;
            padding: 10px 16px;
            border-radius: 0 0 8px 0;
        }

        .skip-link:focus {
            left: 0;
        }

/* roulang page: category1 */
:root {
            --primary: #2A4B7C;
            --primary-h: #1E3A5F;
            --accent: #D4880F;
            --accent-h: #C07C0A;
            --canvas: #F6F8FB;
            --card: #FFFFFF;
            --ink: #1B2430;
            --sub: #5B6B7C;
            --faint: #8C9AA8;
            --line: #E3E9F0;
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-tag: 6px;
            --shadow-soft: 0 1px 3px rgba(26, 44, 68, .05), 0 4px 16px rgba(26, 44, 68, .05);
            --shadow-lift: 0 4px 12px rgba(26, 44, 68, .08), 0 12px 32px rgba(26, 44, 68, .07);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Inter, "Helvetica Neue", Arial, sans-serif;
            font-size: 15px;
            line-height: 1.75;
            background: var(--canvas);
            color: var(--ink);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body.no-scroll {
            overflow: hidden;
        }

        img,
        video {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            line-height: 1.5;
        }

        button {
            border: 0;
            background: none;
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 52px 0;
            }
            .container {
                padding: 0 16px;
            }
        }

        .section-head {
            margin-bottom: 42px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .section-head .label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(42, 75, 124, .08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            letter-spacing: .04em;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--ink);
        }

        .section-head .sub {
            color: var(--sub);
            max-width: 568px;
            font-size: 14px;
            margin-top: 8px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(227, 233, 240, .85), 0 2px 8px rgba(26, 44, 68, .03);
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 68px;
        }

        .brand-lockup {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 800;
            letter-spacing: .02em;
        }

        .brand-mark::after {
            content: "";
            position: absolute;
            top: -3px;
            right: -3px;
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 2px;
        }

        .brand-name {
            font-weight: 700;
            font-size: 19px;
            color: var(--ink);
            letter-spacing: .01em;
            white-space: nowrap;
        }

        .brand-name span {
            color: var(--primary);
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-search {
            position: relative;
        }

        .header-search .search-inside {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 999px;
            height: 40px;
            padding: 0 12px 0 15px;
            width: 240px;
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search .search-inside:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 75, 124, .12);
        }

        .header-search input {
            border: 0;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 13px;
            color: var(--ink);
            margin-left: 8px;
            min-width: 0;
            width: 100%;
        }

        .header-search input::placeholder {
            color: var(--faint);
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            color: var(--sub);
            background: #fff;
            border: 1px solid var(--line);
            transition: all .2s;
        }

        .icon-btn:hover {
            background: #F0F4FA;
            color: var(--primary);
            border-color: #cfdce8;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 18px;
            border-radius: 999px;
            transition: background .2s, transform .2s;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary-h);
            transform: translateY(-1px);
        }

        .header-cta:focus,
        .icon-btn:focus,
        .nav-tab:focus,
        .footer-links a:focus {
            outline: 2px solid rgba(42, 75, 124, .45);
            outline-offset: 2px;
        }

        .channel-nav {
            border-top: 1px solid var(--line);
            padding: 8px 0 9px;
            position: relative;
            background: rgba(255, 255, 255, .9);
        }

        .channel-track {
            display: flex;
            align-items: center;
            gap: 10px;
            overflow-x: auto;
            scrollbar-width: none;
            padding-bottom: 2px;
        }

        .channel-track::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 14px;
            font-weight: 500;
            color: var(--sub);
            background: rgba(255, 255, 255, .5);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 6px 15px;
            white-space: nowrap;
            transition: all .2s cubic-bezier(.2, .8, .3, 1);
        }

        .nav-tab i {
            font-size: 12px;
        }

        .nav-tab:hover {
            background: #F0F4FA;
            color: var(--primary);
            border-color: #cfdce8;
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        @media (max-width: 640px) {
            .header-main {
                min-height: 60px;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }
            .brand-name {
                font-size: 17px;
            }
            .header-search {
                display: none;
            }
            .header-cta {
                padding: 7px 14px;
                font-size: 13px;
                gap: 4px;
            }
            .header-cta .cta-text {
                display: none;
            }
            .channel-nav {
                padding: 7px 0;
            }
            .nav-tab {
                font-size: 13px;
                padding: 5px 13px;
            }
        }

        /* ===== 页面 Hero / 分类大区 ===== */
        .category-hero {
            position: relative;
            background: #EEF3F9;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
            padding: 54px 0 46px;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(42, 75, 124, .06) 1px, transparent 1px),
                linear-gradient(90deg, rgba(42, 75, 124, .06) 1px, transparent 1px);
            background-size: 44px 44px;
            pointer-events: none;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            right: -90px;
            top: -110px;
            width: 360px;
            height: 360px;
            background: rgba(212, 136, 15, .10);
            border-radius: 50%;
            filter: blur(56px);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
            gap: 44px;
            align-items: center;
        }

        .breadcrumbs {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--sub);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumbs a:hover {
            color: var(--primary);
        }

        .breadcrumbs .sep {
            color: var(--faint);
        }

        .hero-title {
            font-size: 37px;
            font-weight: 700;
            line-height: 1.24;
            letter-spacing: -0.01em;
            color: var(--ink);
            margin-bottom: 18px;
        }

        .hero-title .accent-text {
            color: var(--accent-h);
        }

        .hero-desc {
            font-size: 15px;
            color: var(--sub);
            max-width: 590px;
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 16px;
        }

        .hero-meta .meta-cell {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--sub);
        }

        .hero-meta .meta-cell i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            padding: 11px 22px;
            border-radius: var(--radius-btn);
            transition: all .2s cubic-bezier(.2, .8, .3, 1);
            white-space: nowrap;
            cursor: pointer;
        }

        .btn i {
            font-size: 13px;
            margin-top: 1px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(42, 75, 124, .18);
        }

        .btn-primary:hover {
            background: var(--primary-h);
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(42, 75, 124, .22);
        }

        .btn-outline {
            border: 1px solid #C9D6E5;
            background: rgba(255, 255, 255, .6);
            color: var(--primary);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: #fff;
            transform: translateY(-1px);
        }

        .btn-amber {
            background: var(--accent);
            color: #fff;
        }

        .btn-amber:hover {
            background: var(--accent-h);
            transform: translateY(-1px);
        }

        .hero-visual {
            position: relative;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-lift);
            border: 1px solid rgba(255, 255, 255, .55);
            background: #fff;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            min-height: 250px;
            object-fit: cover;
        }

        .hero-visual .visual-float {
            position: absolute;
            left: 14px;
            bottom: 14px;
            right: 14px;
            background: rgba(255, 255, 255, .94);
            border-radius: 12px;
            padding: 12px 14px;
            border: 1px solid rgba(212, 136, 15, .15);
            box-shadow: var(--shadow-soft);
            backdrop-filter: blur(4px);
        }

        .visual-float .title-sm {
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 4px;
        }

        .visual-float .text-xs {
            font-size: 12px;
            color: var(--sub);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .visual-float .tag {
            font-size: 11px;
            color: var(--accent-h);
            background: rgba(212, 136, 15, .1);
            padding: 2px 8px;
            border-radius: 999px;
            white-space: nowrap;
        }

        @media (max-width: 900px) {
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-visual {
                max-width: 600px;
            }
        }

        /* ===== 分类筛选条 ===== */
        .filter-strip {
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
            background: rgba(255, 255, 255, .7);
        }

        .filter-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            flex-wrap: wrap;
        }

        .filter-tabs {
            display: flex;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            max-width: 100%;
            padding-bottom: 2px;
        }

        .filter-tabs::-webkit-scrollbar {
            display: none;
        }

        .pill-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 15px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid #D7E0EA;
            white-space: nowrap;
            color: var(--sub);
            transition: all .2s;
        }

        .pill-tab:hover {
            background: #F0F4FA;
            color: var(--primary);
            border-color: #b8c9d9;
        }

        .pill-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .update-time {
            font-size: 12px;
            color: var(--faint);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .update-time i {
            color: var(--accent);
        }

        /* ===== 行式索引区 ===== */
        .index-entry-section {
            background: var(--canvas);
        }

        .entry-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
            gap: 36px;
            align-items: start;
        }

        @media (max-width: 900px) {
            .entry-layout {
                grid-template-columns: 1fr;
            }
        }

        .entry-list-block {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .entry-list-block .block-head {
            padding: 22px 24px 14px;
            border-bottom: 1px solid #eef2f5;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .block-head .head-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(42, 75, 124, .08);
            color: var(--primary);
            border-radius: 10px;
            font-size: 18px;
        }

        .block-head h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
        }

        .block-head p {
            font-size: 13px;
            color: var(--sub);
            margin-top: 2px;
        }

        .entry-rows {
            padding: 8px 0;
        }

        .entry-row {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 24px;
            border-bottom: 1px solid #eef2f5;
            transition: background .2s, transform .2s, box-shadow .2s;
            position: relative;
        }

        .entry-row:last-child {
            border-bottom: 0;
        }

        .entry-row:hover {
            background: #F0F4FA;
        }

        .entry-row:hover .entry-arrow {
            transform: translateX(4px);
            opacity: 1;
        }

        .entry-index {
            font-size: 15px;
            font-weight: 800;
            font-family: Inter, 'Helvetica Neue', Arial, sans-serif;
            color: #B9C4D4;
            min-width: 38px;
            line-height: 1.4;
            margin-top: 2px;
        }

        .entry-main {
            flex: 1;
            min-width: 0;
        }

        .entry-title-line {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 5px;
        }

        .entry-title-line .e-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            transition: color .2s;
        }

        .entry-row:hover .e-title {
            color: var(--primary);
        }

        .entry-desc {
            font-size: 13px;
            color: var(--sub);
            line-height: 1.65;
            max-width: 620px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            padding: 2px 8px;
            border-radius: var(--radius-tag);
            font-weight: 500;
            line-height: 1.5;
            background: rgba(42, 75, 124, .06);
            color: var(--primary);
        }

        .tag-pill.alt {
            background: rgba(212, 136, 15, .1);
            color: var(--accent-h);
        }

        .entry-arrow {
            color: var(--primary);
            margin-top: 5px;
            transition: transform .2s, opacity .2s;
            opacity: .6;
        }

        /* 右侧搭桥卡 */
        .guide-side {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .guide-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            box-shadow: var(--shadow-soft);
            padding: 22px;
        }

        .guide-card.accent-card {
            background: linear-gradient(135deg, #1f3a60, #152a45);
            color: #fff;
            border: 0;
            position: relative;
            overflow: hidden;
        }

        .guide-card.accent-card::before {
            content: "";
            position: absolute;
            right: -24px;
            bottom: -30px;
            width: 120px;
            height: 120px;
            background: rgba(212, 136, 15, .22);
            border-radius: 50%;
            filter: blur(24px);
        }

        .guide-card .guide-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, .1);
            font-size: 17px;
            color: #fff;
            margin-bottom: 14px;
        }

        .guide-card.accent-card h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .guide-card.accent-card p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .78);
            margin-bottom: 16px;
        }

        .guide-list {
            display: grid;
            gap: 12px;
        }

        .guide-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 13px;
            color: var(--sub);
        }

        .guide-list li i {
            color: var(--accent);
            margin-top: 5px;
            font-size: 12px;
        }

        .grey-card h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        /* 指引说明条 */
        .usage-line {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 15px;
            background: #F8FAFC;
            border-radius: 10px;
            font-size: 13px;
            color: var(--sub);
            margin-top: 18px;
        }

        .usage-line i {
            color: var(--accent);
        }

        /* ===== 人群 / 场景 ===== */
        .scenario-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 24px;
            transition: box-shadow .2s, transform .2s;
            height: 100%;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-lift);
            transform: translateY(-2px);
        }

        .scenario-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(42, 75, 124, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .scenario-card p {
            font-size: 13px;
            color: var(--sub);
            line-height: 1.65;
        }

        /* 入口使用流程 */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            margin-top: 30px;
        }

        @media (max-width: 900px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        .flow-step {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 18px;
            position: relative;
        }

        .flow-step .step-number {
            font-size: 12px;
            font-weight: 800;
            font-family: Inter;
            color: var(--accent);
            letter-spacing: .05em;
        }

        .flow-step h4 {
            font-size: 14px;
            font-weight: 600;
            margin: 6px 0 4px;
        }

        .flow-step p {
            font-size: 12px;
            color: var(--sub);
            line-height: 1.55;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: box-shadow .2s;
        }

        .faq-card:hover {
            box-shadow: var(--shadow-lift);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 19px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            background: #fff;
            line-height: 1.6;
        }

        .faq-q .faq-icon-box {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(42, 75, 124, .07);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            margin-left: auto;
            flex-shrink: 0;
            transition: transform .28s cubic-bezier(.2, .8, .3, 1), background .2s;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s cubic-bezier(.2, .8, .3, 1);
            padding: 0 22px;
            font-size: 14px;
            color: var(--sub);
            line-height: 1.75;
            border-top: 0 solid #eef2f5;
        }

        .faq-card.open .faq-a {
            max-height: 600px;
            padding: 0 22px 18px;
            border-top-width: 1px;
        }

        .faq-card.open .faq-icon-box {
            background: var(--accent);
            color: #fff;
            transform: rotate(45deg);
        }

        /* CTA 横条 */
        .cta-strip {
            background: #0F1B2E;
            border-top: 1px solid rgba(255, 255, 255, .06);
            position: relative;
            overflow: hidden;
            padding: 72px 0;
        }

        .cta-strip::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
            background-size: 42px 42px;
        }

        .cta-strip .cta-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-strip h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-strip p {
            color: #a6b6cc;
            font-size: 14px;
            max-width: 520px;
        }

        .cta-strip .btn-white {
            background: #fff;
            color: #1E3A5F;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 999px;
            transition: all .2s;
            box-shadow: 0 6px 18px rgba(0, 0, 0, .15);
            white-space: nowrap;
        }

        .cta-strip .btn-white:hover {
            background: #f6e2b0;
            transform: translateY(-1px);
            box-shadow: 0 10px 26px rgba(0, 0, 0, .22);
        }

        @media (max-width: 640px) {
            .cta-strip {
                padding: 52px 0;
            }
            .cta-strip h2 {
                font-size: 21px;
            }
        }

        /* Footer */
        .site-footer {
            background: #0F1B2E;
            color: #9AA9BD;
            font-size: 13px;
            line-height: 1.7;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .site-footer .container {
            padding-top: 58px;
            padding-bottom: 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 38px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                row-gap: 34px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: #fff;
            color: #1E3A5F;
            font-weight: 800;
            font-size: 14px;
        }

        .footer-brand span {
            color: #fff;
            font-weight: 600;
            font-size: 17px;
        }

        .footer-desc {
            font-size: 13px;
            color: #8A9BB2;
            max-width: 280px;
        }

        .footer-title {
            font-weight: 600;
            color: #fff;
            font-size: 15px;
            margin-bottom: 12px;
        }

        .footer-links li {
            margin-bottom: 7px;
        }

        .footer-links a {
            color: #8A9BB2;
            transition: color .2s;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact li {
            margin-bottom: 7px;
            color: #8A9BB2;
        }

        .footer-contact a {
            color: #b9c6da;
        }

        .footer-contact a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 22px 0 8px;
            color: #6F819B;
            font-size: 13px;
        }

        .footer-statement {
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            color: #6F819B;
            font-size: 12px;
            line-height: 1.7;
        }

        /* 右侧悬浮 */
        .float-cta {
            position: fixed;
            right: 22px;
            bottom: 24px;
            z-index: 60;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-lift);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: all .2s;
            cursor: pointer;
        }

        .float-btn:hover {
            background: var(--primary);
            color: #fff;
        }

        .float-cta .main-float {
            background: var(--primary);
            color: #fff;
            border: 0;
        }

        .float-cta .main-float:hover {
            background: var(--primary-h);
            transform: translateY(-2px);
        }

        @media (min-width: 1200px) {
            .float-cta {
                right: 28px;
            }
        }

        /* 过渡加载屏蔽 */
        body {
            opacity: 1;
        }

/* roulang page: article */
:root {
            --primary: #2A4B7C;
            --primary-dark: #1E3A5F;
            --accent: #D4880F;
            --accent-dark: #C07C0A;
            --canvas: #F6F8FB;
            --card-bg: #FFFFFF;
            --text-main: #1B2430;
            --text-secondary: #5B6B7C;
            --text-muted: #8C9AA8;
            --border: #E3E9F0;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 1px 3px rgba(26,44,68,.05), 0 4px 16px rgba(26,44,68,.05);
            --shadow-hover: 0 4px 12px rgba(26,44,68,.08), 0 12px 32px rgba(26,44,68,.07);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans CJK SC", Inter, Arial, sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--canvas);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width:640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 90;
            background: rgba(255, 255, 255, .94);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow .15s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 8px rgba(26, 44, 68, .04);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 18px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 21px;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: -.01em;
        }

        .brand-logo .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            min-width: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 800;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-form {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-input {
            width: 260px;
            max-width: 28vw;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: #fff;
            font-size: 14px;
            padding: 0 44px 0 16px;
            box-shadow: 0 1px 2px rgba(26, 44, 68, .02);
            outline: none;
            transition: all .2s ease;
        }

        .search-input::placeholder {
            color: var(--text-muted);
        }

        .search-input:focus {
            border-color: #9DB4D1;
            box-shadow: 0 0 0 3px rgba(42, 75, 124, .13);
        }

        .search-btn {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border: 0;
            border-radius: 999px;
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all .2s;
        }

        .search-btn:hover {
            background: #F0F4FA;
            color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .2s cubic-bezier(.2, .8, .2, 1);
            text-align: center;
        }

        .btn-primary {
            height: 40px;
            padding: 0 22px;
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-size: 15px;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(42, 75, 124, .22);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(42, 75, 124, .2);
        }

        .btn-accent {
            height: 40px;
            padding: 0 22px;
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            font-size: 15px;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(212, 136, 15, .28);
        }

        .btn-ghost {
            height: 40px;
            padding: 0 22px;
            background: transparent;
            border: 1px solid #C3D0E0;
            color: var(--primary);
            font-size: 15px;
        }

        .btn-ghost:hover {
            background: #F0F4FA;
            border-color: var(--primary);
        }

        .mobile-search-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: #fff;
            color: var(--text-secondary);
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s;
        }

        .mobile-search-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: #F0F4FA;
        }

        .mobile-search-wrap {
            display: none;
            padding: 10px 16px 14px;
            border-top: 1px solid #F0F3F8;
            background: rgba(255, 255, 255, .98);
        }

        .mobile-search-wrap.show {
            display: block;
        }

        .mobile-search-input {
            width: 100%;
            height: 42px;
            border-radius: 999px;
            border: 1px solid var(--border);
            padding: 0 46px 0 16px;
            font-size: 14px;
            background: #fff;
            outline: none;
        }

        .mobile-search-input:focus {
            border-color: #9DB4D1;
            box-shadow: 0 0 0 3px rgba(42, 75, 124, .13);
        }

        .mobile-search-wrap form {
            position: relative;
            display: block;
        }

        .mobile-search-wrap .mobile-search-submit {
            position: absolute;
            right: 5px;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            border-radius: 999px;
            border: 0;
            background: transparent;
            color: var(--text-muted);
            cursor: pointer;
        }

        .header-nav-row {
            border-top: 1px solid #F0F3F8;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            transition: all .2s ease;
        }

        .nav-tab:hover {
            background: #EEF3F9;
            color: var(--primary);
            border-color: #B9CADF;
        }

        .nav-tab.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ---------- Article Hero ---------- */
        .article-hero {
            position: relative;
            overflow: hidden;
            background: #EDF3F8;
            border-bottom: 1px solid var(--border);
        }

        .article-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .28;
        }

        .article-hero .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(246, 248, 251, .98) 0%, rgba(246, 248, 251, .82) 60%, rgba(246, 248, 251, .45) 100%);
        }

        .article-hero::after {
            content: '';
            position: absolute;
            top: -240px;
            right: -140px;
            width: 460px;
            height: 460px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 136, 15, .09) 0%, rgba(212, 136, 15, 0) 70%);
            pointer-events: none;
        }

        .article-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 58px 0 64px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 22px;
        }

        .breadcrumb a {
            transition: color .2s;
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: #C5D0DD;
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .pill-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 30px;
            padding: 0 14px;
            border-radius: 999px;
            background: rgba(42, 75, 124, .08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
        }

        .pill-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: var(--accent);
        }

        .article-title {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 700;
            max-width: 900px;
            letter-spacing: -.015em;
            margin: 16px 0 18px;
            color: var(--text-main);
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta i {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* ---------- Article body ---------- */
        .article-section {
            padding: 56px 0 72px;
        }

        .article-single-col {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
        }

        .article-summary {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
            background: #FFFBF2;
            border-left: 4px solid var(--accent);
            border-radius: 0 10px 10px 0;
            padding: 20px 24px;
            margin: 34px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body {
            color: #2A3743;
            font-size: 16px;
            line-height: 1.95;
        }

        .article-body p {
            margin-bottom: 1.35em;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin: 2em 0 .8em;
            padding-bottom: .4em;
            border-bottom: 1px solid var(--border);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 1.6em 0 .6em;
            line-height: 1.45;
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            margin: 1.4em 0 .5em;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.4em 1.4em;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body li {
            margin-bottom: .5em;
        }

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid #B9CADF;
            transition: color .2s, border-color .2s;
        }

        .article-body a:hover {
            color: var(--accent-dark);
            border-color: var(--accent);
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: #F0F4FA;
            padding: 16px 22px;
            border-radius: 0 10px 10px 0;
            color: var(--text-secondary);
            margin: 1.6em 0 1.8em;
            font-size: 15px;
        }

        .article-body img {
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            margin: 1.5em 0;
            height: auto;
        }

        .article-body img+em,
        .article-body .img-alt {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            line-height: 1.6;
            margin: -1em 0 1.5em;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 14px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 12px;
            text-align: left;
        }

        .article-body th {
            background: #F0F4FA;
            color: var(--primary);
            font-weight: 600;
        }

        .article-body code {
            background: #eef2f6;
            border-radius: 6px;
            padding: 2px 7px;
            font-size: .9em;
            color: #1E3A5F;
        }

        /* entry card */
        .official-entry {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 18px;
            background: #FDF8EE;
            border: 1px solid #EBE0C6;
            border-radius: 14px;
            padding: 26px 28px;
            margin: 44px 0 8px;
            box-shadow: var(--shadow-card);
        }

        .official-entry .entry-text h3 {
            font-size: 18px;
            color: #5F4A1E;
            margin-bottom: 4px;
        }

        .official-entry .entry-text p {
            color: #7A6A4B;
            font-size: 14px;
            line-height: 1.7;
            max-width: 520px;
        }

        .official-entry .entry-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* ---------- Related ---------- */
        .related-section {
            padding: 66px 0 74px;
            background: #EEF2F7;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            margin-bottom: 34px;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-dark);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: .04em;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 6px;
            line-height: 1.25;
            letter-spacing: -.01em;
        }

        .section-sub {
            color: var(--text-secondary);
            font-size: 15px;
            margin-top: 8px;
            max-width: 640px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            display: block;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
        }

        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: #C2D0E1;
        }

        .related-card .rc-kicker {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 12px;
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
        }

        .related-card .rc-icon {
            width: 32px;
            height: 32px;
            border-radius: 9px;
            background: rgba(42, 75, 124, .08);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .related-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: gap .2s ease;
        }

        .related-card:hover .link-more {
            gap: 12px;
        }

        .related-more-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 28px;
        }

        .related-more-row .text-note {
            color: var(--text-muted);
            font-size: 14px;
        }

        .related-more-row .extra-links {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .extra-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            background: #fff;
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 999px;
            transition: all .2s;
        }

        .extra-link:hover {
            background: #F0F4FA;
            border-color: #B9CADF;
        }

        /* ---------- CTA band ---------- */
        .cta-band {
            position: relative;
            overflow: hidden;
            background: #1E3A5F;
            padding: 64px 0 68px;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 42px 42px;
            pointer-events: none;
        }

        .cta-band::after {
            content: '';
            position: absolute;
            top: -160px;
            left: 30%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(212, 136, 15, .13), transparent 68%);
            pointer-events: none;
        }

        .cta-band .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-band h2 {
            color: #fff;
            font-size: 31px;
            font-weight: 700;
            letter-spacing: -.01em;
            margin-bottom: 14px;
        }

        .cta-band p {
            color: #B7C7DA;
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 28px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .cta-band .btn-white {
            height: 42px;
            padding: 0 24px;
            background: #fff;
            color: var(--primary-dark);
            border: 1px solid transparent;
            font-size: 15px;
        }

        .cta-band .btn-white:hover {
            background: #f4f6fa;
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .16);
        }

        .cta-band .btn-outline-light {
            height: 42px;
            padding: 0 24px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .45);
            color: #fff;
            font-size: 15px;
        }

        .cta-band .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
        }

        /* ---------- Not found ---------- */
        .notfound-section {
            background: var(--canvas);
            padding: 120px 16px;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .notfound-card {
            max-width: 560px;
            margin: 0 auto;
            text-align: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 60px 40px;
            box-shadow: var(--shadow-card);
        }

        .notfound-card .nf-code {
            font-size: 64px;
            font-weight: 800;
            color: rgba(42, 75, 124, .14);
            line-height: 1;
            letter-spacing: .06em;
        }

        .notfound-card h1 {
            font-size: 30px;
            margin: 14px 0 10px;
            color: var(--text-main);
        }

        .notfound-card p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 26px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #131C2B;
            color: #BFCFE2;
            border-top: 1px solid rgba(255, 255, 255, .06);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .1), transparent);
        }

        .site-footer .container {
            padding-top: 58px;
            padding-bottom: 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 38px;
            margin-bottom: 46px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 9px;
            font-size: 21px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: var(--accent);
            color: #fff;
            font-size: 15px;
            font-weight: 800;
        }

        .footer-desc {
            color: #8FA0B5;
            font-size: 14px;
            line-height: 1.85;
            max-width: 300px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
            font-size: 14px;
            line-height: 1.7;
        }

        .footer-links a,
        .footer-contact a {
            color: #B7C7DA;
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover,
        .footer-contact a:hover {
            color: #fff;
            padding-left: 3px;
        }

        .footer-contact li {
            color: #8FA0B5;
        }

        .footer-contact a {
            color: #C7D6E6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 14px;
            color: #8FA0B5;
        }

        .footer-statement {
            font-size: 12px;
            color: #6D7E93;
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, .05);
            margin-top: 22px;
            padding-top: 18px;
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
            }

            .footer-grid>div:last-child {
                grid-column: span 3;
            }

            .article-title {
                font-size: 34px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header-top {
                min-height: 62px;
            }

            .brand-logo {
                font-size: 18px;
            }

            .brand-logo .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

            .desktop-search {
                display: none;
            }

            .mobile-search-toggle {
                display: inline-flex;
            }

            .btn-cta-header {
                height: 36px;
                padding: 0 14px;
                font-size: 14px;
            }

            .channel-nav {
                padding: 8px 0 10px;
            }

            .article-hero .hero-content {
                padding: 40px 0 46px;
            }

            .article-title {
                font-size: 30px;
            }

            .article-summary {
                font-size: 15px;
                padding: 16px 18px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 21px;
            }

            .official-entry {
                padding: 20px;
            }

            .cta-band h2 {
                font-size: 26px;
            }

            .section-title {
                font-size: 25px;
            }
        }

        @media (max-width: 640px) {
            .brand-logo {
                font-size: 17px;
                gap: 8px;
            }

            .brand-logo .brand-mark {
                width: 30px;
                height: 30px;
                border-radius: 8px;
                font-size: 14px;
            }

            .header-top {
                min-height: 58px;
                gap: 10px;
            }

            .header-right {
                gap: 8px;
            }

            .btn-cta-header {
                padding: 0 12px;
                font-size: 13px;
                height: 34px;
            }

            .article-title {
                font-size: 25px;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-grid>div:last-child {
                grid-column: auto;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .article-summary {
                padding: 14px 16px;
                font-size: 14px;
            }

            .official-entry .entry-actions {
                width: 100%;
            }

            .official-entry .entry-actions .btn {
                flex: 1;
            }

            .cta-buttons .btn {
                width: 100%;
            }

            .related-more-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .notfound-card {
                padding: 40px 24px;
            }

            .notfound-card .nf-code {
                font-size: 48px;
            }
        }

        @media (max-width: 480px) {
            .nav-tab {
                height: 34px;
                padding: 0 14px;
                font-size: 14px;
            }

            .related-card {
                padding: 20px;
            }
        }

/* roulang page: category3 */
:root {
        --primary: #2A4B7C;
        --primary-dark: #1E3A5F;
        --accent: #D4880F;
        --accent-dark: #C07C0A;
        --success: #2E7D32;
        --canvas: #F6F8FB;
        --surface: #FFFFFF;
        --text: #1B2430;
        --text-secondary: #5B6B7C;
        --text-muted: #8C9AA8;
        --border: #E3E9F0;
        --radius: 12px;
        --radius-sm: 8px;
        --radius-pill: 999px;
        --shadow: 0 1px 3px rgba(26, 44, 68, .05), 0 4px 16px rgba(26, 44, 68, .05);
        --shadow-hover: 0 4px 12px rgba(26, 44, 68, .08), 0 12px 32px rgba(26, 44, 68, .07);
        --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        --ease: cubic-bezier(.19, .8, .25, 1);
        --space-section: 84px;
        --space-mobile: 52px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-family);
        background: var(--canvas);
        color: var(--text);
        line-height: 1.7;
        font-size: 15px;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }
    body.menu-open {
        overflow: hidden;
    }
    ul,
    ol {
        list-style: none;
    }
    a {
        color: inherit;
        text-decoration: none;
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font: inherit;
        border: none;
        outline: none;
        background: none;
    }
    button {
        cursor: pointer;
    }
    :focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 3px;
        border-radius: 4px;
    }
    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }
    .visually-hidden {
        position: absolute;
        width: 1px;
        height: 1px;
        clip: rect(0 0 0 0);
        overflow: hidden;
        white-space: nowrap;
    }
    .skip-link {
        position: absolute;
        left: -999px;
        top: 10px;
        z-index: 2000;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 8px 14px;
        font-weight: 600;
    }
    .skip-link:focus {
        left: 14px;
    }
    /* ===== Header ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, .92);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--border);
        transition: box-shadow .15s ease, background .15s ease;
    }
    .site-header.is-scrolled {
        box-shadow: 0 2px 10px rgba(26, 44, 68, .04);
        background: rgba(255, 255, 255, .97);
    }
    .header-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        min-height: 72px;
        padding-top: 10px;
        padding-bottom: 10px;
    }
    .site-logo {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }
    .brand-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        background: var(--primary);
        color: #fff;
        border-radius: 10px;
        font-weight: 800;
        font-size: 16px;
        letter-spacing: .02em;
        box-shadow: 0 6px 14px rgba(42, 75, 124, .18);
    }
    .brand-name {
        display: flex;
        flex-direction: column;
        line-height: 1.18;
    }
    .brand-name strong {
        font-size: 20px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -0.01em;
    }
    .brand-name small {
        font-size: 11px;
        color: var(--text-muted);
        letter-spacing: .08em;
        margin-top: 2px;
    }
    .header-tools {
        display: flex;
        align-items: center;
        gap: 10px;
        flex: 1;
        justify-content: flex-end;
    }
    .search-box {
        position: relative;
        width: min(260px, 30vw);
    }
    .search-box .fa-magnifying-glass {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        font-size: 14px;
        pointer-events: none;
    }
    .search-box input {
        width: 100%;
        height: 42px;
        border: 1px solid var(--border);
        border-radius: var(--radius-pill);
        padding: 0 38px 0 38px;
        background: #f9fbfd;
        font-size: 14px;
        color: var(--text);
        transition: box-shadow .2s ease, border .2s ease, background .2s ease;
    }
    .search-box input::placeholder {
        color: var(--text-muted);
    }
    .search-box input:focus {
        background: #fff;
        border-color: rgba(42, 75, 124, .45);
        box-shadow: 0 0 0 3px rgba(42, 75, 124, .10);
    }
    .header-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        height: 42px;
        padding: 0 18px;
        background: var(--primary);
        color: #fff;
        border-radius: var(--radius-pill);
        font-weight: 600;
        font-size: 14px;
        white-space: nowrap;
        transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
        box-shadow: 0 6px 16px rgba(42, 75, 124, .14);
    }
    .header-cta:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(42, 75, 124, .18);
    }
    .header-cta:active {
        transform: translateY(0);
    }
    .header-cta.secondary {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--border);
        box-shadow: none;
    }
    .header-cta.secondary:hover {
        border-color: rgba(42, 75, 124, .3);
        background: #f1f5fa;
    }
    .channel-nav {
        border-top: 1px solid rgba(227, 233, 240, .72);
        background: rgba(255, 255, 255, .6);
    }
    .channel-nav-inner {
        display: flex;
        gap: 10px;
        overflow-x: auto;
        padding: 8px 24px 10px;
        max-width: 1248px;
        margin: 0 auto;
        scrollbar-width: none;
    }
    .channel-nav-inner::-webkit-scrollbar {
        display: none;
    }
    .nav-tab {
        display: inline-flex;
        align-items: center;
        white-space: nowrap;
        padding: 7px 18px;
        border-radius: var(--radius-pill);
        border: 1px solid var(--border);
        background: transparent;
        color: var(--text-secondary);
        font-size: 13.5px;
        font-weight: 600;
        transition: background .2s ease, color .2s ease, border .2s ease, transform .2s ease;
    }
    .nav-tab:hover {
        background: #edf3f8;
        color: var(--primary);
        border-color: #d5e0ea;
    }
    .nav-tab.active {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        font-weight: 600;
        box-shadow: 0 4px 12px rgba(42, 75, 124, .14);
    }
    .nav-tab.active:hover {
        color: #fff;
        background: var(--primary-dark);
    }
    /* ===== Hero ===== */
    .page-hero {
        position: relative;
        background: #eef2f7;
        padding: 62px 0 58px;
        border-bottom: 1px solid var(--border);
        background-image: url('/assets/images/backpic/back-1.png');
        background-size: cover;
        background-position: center;
        isolation: isolate;
        overflow: hidden;
    }
    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(78deg, rgba(255, 255, 255, .9) 0%, rgba(255, 255, 255, .77) 47%, rgba(255, 255, 255, .42) 100%);
        z-index: -1;
    }
    .page-hero::after {
        content: "";
        position: absolute;
        top: -90px;
        right: -40px;
        width: 340px;
        height: 340px;
        background: radial-gradient(circle, rgba(212, 136, 15, .12) 0%, transparent 68%);
        z-index: -1;
    }
    .hero-grid {
        display: grid;
        grid-template-columns: minmax(0, 1.3fr) minmax(0, .9fr);
        gap: 52px;
        align-items: center;
    }
    .hero-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(42, 75, 124, .08);
        color: var(--primary);
        padding: 6px 14px;
        border-radius: var(--radius-pill);
        font-size: 13px;
        font-weight: 600;
        margin-bottom: 18px;
    }
    .hero-eyebrow::before {
        content: "";
        width: 6px;
        height: 6px;
        background: var(--accent);
        border-radius: 50%;
    }
    .hero-copy h1 {
        font-size: clamp(30px, 4.4vw, 42px);
        line-height: 1.28;
        letter-spacing: -0.02em;
        font-weight: 800;
        color: var(--text);
        margin-bottom: 16px;
    }
    .hero-copy h1 em {
        font-style: normal;
        color: var(--primary);
    }
    .hero-lead {
        font-size: 15.5px;
        line-height: 1.85;
        color: var(--text-secondary);
        max-width: 640px;
        margin-bottom: 24px;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 30px;
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        background: var(--primary);
        color: #fff;
        border-radius: var(--radius-pill);
        padding: 0 24px;
        height: 48px;
        font-size: 15px;
        font-weight: 600;
        transition: all .2s ease;
        box-shadow: 0 10px 22px rgba(42, 75, 124, .18);
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 14px 30px rgba(42, 75, 124, .22);
    }
    .btn-primary:active {
        transform: translateY(0);
    }
    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        border: 1px solid rgba(42, 75, 124, .3);
        color: var(--primary);
        background: rgba(255, 255, 255, .8);
        border-radius: var(--radius-pill);
        padding: 0 22px;
        height: 48px;
        font-size: 15px;
        font-weight: 600;
        transition: all .2s ease;
    }
    .btn-ghost:hover {
        border-color: var(--primary);
        background: rgba(255, 255, 255, 1);
        box-shadow: 0 6px 16px rgba(26, 44, 68, .06);
    }
    .hero-stats {
        display: flex;
        flex-wrap: wrap;
        gap: 28px;
    }
    .stat-item {
        display: flex;
        flex-direction: column;
        gap: 2px;
    }
    .stat-value {
        font-size: 24px;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -.02em;
    }
    .stat-label {
        font-size: 12px;
        color: var(--text-muted);
    }
    .hero-visual {
        position: relative;
        border-radius: 18px;
        background: #fff;
        padding: 10px;
        box-shadow: 0 16px 40px rgba(26, 44, 68, .08);
        border: 1px solid rgba(255, 255, 255, .8);
    }
    .hero-visual img {
        border-radius: 14px;
        width: 100%;
        aspect-ratio: 4 / 3;
        object-fit: cover;
    }
    .hero-visual-note {
        position: absolute;
        left: 18px;
        right: 18px;
        bottom: 18px;
        background: rgba(255, 255, 255, .94);
        border-radius: 12px;
        padding: 12px 16px;
        font-size: 13.5px;
        color: var(--text);
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 10px;
        box-shadow: 0 8px 20px rgba(26, 44, 68, .12);
    }
    .hero-visual-note i {
        width: 30px;
        height: 30px;
        background: #f3f6fa;
        color: var(--primary);
        border-radius: 8px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        flex-shrink: 0;
    }
    /* ===== Trust strip ===== */
    .trust-strip {
        background: var(--primary);
        color: #fff;
        border-bottom: 1px solid rgba(255, 255, 255, .06);
    }
    .trust-inner {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        justify-content: center;
        gap: 14px 32px;
        padding: 14px 0;
        font-size: 13.5px;
        font-weight: 500;
    }
    .trust-inner span {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: rgba(255, 255, 255, .88);
    }
    .trust-inner i {
        color: #f7c873;
        font-size: 14px;
    }
    /* ===== Section base ===== */
    .content-section {
        padding-top: calc(var(--space-section) - 24px);
        padding-bottom: 24px;
    }
    .module {
        padding-top: var(--space-section);
        padding-bottom: 24px;
    }
    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        gap: 20px;
        margin-bottom: 28px;
        flex-wrap: wrap;
    }
    .section-header h2,
    .section-title {
        font-size: clamp(24px, 3vw, 30px);
        letter-spacing: -.02em;
        font-weight: 800;
        color: var(--text);
        line-height: 1.3;
    }
    .section-title + p {
        margin-top: 10px;
    }
    .section-desc {
        color: var(--text-secondary);
        font-size: 15px;
        max-width: 720px;
        line-height: 1.8;
    }
    .section-more {
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 7px;
        white-space: nowrap;
    }
    .section-more:hover i {
        transform: translateX(4px);
    }
    .section-more i {
        transition: transform .2s ease;
    }
    .meta-hint {
        font-size: 12px;
        color: var(--text-muted);
        display: inline-block;
    }
    .date-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--text-muted);
        font-size: 12px;
        background: #fff;
        border: 1px solid var(--border);
        padding: 4px 11px;
        border-radius: 30px;
    }
    .date-chip i {
        color: var(--accent);
    }
    /* ===== Dual content grid ===== */
    .dual-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 22px;
    }
    .cover-card {
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 14px;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        transition: transform .2s ease, box-shadow .2s ease, border .2s ease;
    }
    .cover-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(42, 75, 124, .12);
    }
    .cover-card-image {
        position: relative;
        height: 166px;
        overflow: hidden;
    }
    .cover-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .3s ease;
    }
    .cover-card:hover .cover-card-image img {
        transform: scale(1.03);
    }
    .cover-card-image::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 55%, rgba(16, 27, 43, .18) 100%);
    }
    .card-tag {
        position: absolute;
        top: 12px;
        left: 12px;
        z-index: 2;
        background: rgba(255, 255, 255, .94);
        color: var(--primary);
        border-radius: 30px;
        padding: 4px 12px;
        font-size: 12px;
        font-weight: 700;
        line-height: 1.4;
        box-shadow: 0 3px 10px rgba(26, 44, 68, .06);
        backdrop-filter: blur(4px);
    }
    .card-body {
        padding: 22px 22px 20px;
        display: flex;
        flex-direction: column;
        gap: 12px;
        flex: 1;
    }
    .card-index-label {
        font-size: 11px;
        letter-spacing: .16em;
        color: var(--accent);
        font-weight: 700;
    }
    .card-title {
        font-size: 18px;
        font-weight: 700;
        color: var(--text);
        line-height: 1.45;
    }
    .card-desc {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
        flex: 1;
    }
    .card-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 12px;
        color: var(--text-muted);
        padding-top: 4px;
        border-top: 1px solid #f1f4f8;
    }
    .card-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        margin-top: 8px;
        transition: all .2s ease;
    }
    .card-more i {
        transition: transform .2s ease;
    }
    .card-more:hover {
        color: var(--primary-dark);
    }
    .card-more:hover i {
        transform: translateX(4px);
    }
    /* scene section */
    .scene-tabs {
        display: inline-flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 24px;
    }
    .scene-tab {
        padding: 8px 18px;
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 30px;
        font-size: 13.5px;
        color: var(--text-secondary);
        font-weight: 600;
        transition: all .2s ease;
    }
    .scene-tab i {
        color: var(--accent);
        margin-right: 5px;
    }
    .scene-tab:hover {
        border-color: rgba(42, 75, 124, .3);
        color: var(--primary);
    }
    .steps-wrap {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 28px;
        margin-top: 12px;
    }
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 18px;
    }
    .step-item {
        position: relative;
        padding: 18px 10px 8px;
        text-align: center;
    }
    .step-num {
        width: 38px;
        height: 38px;
        background: #eef3f9;
        color: var(--primary);
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 15px;
        margin-bottom: 14px;
    }
    .step-item h3 {
        font-size: 15.5px;
        font-weight: 700;
        color: var(--text);
        margin-bottom: 7px;
    }
    .step-item p {
        font-size: 13.5px;
        color: var(--text-secondary);
        line-height: 1.7;
    }
    /* contrast */
    .contrast-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .contrast-card {
        border-radius: 14px;
        padding: 28px;
        background: #fff;
        border: 1px solid var(--border);
    }
    .contrast-card.good {
        background: #f7fbf8;
        border-color: #d7e8dc;
    }
    .contrast-card.warn {
        background: #fff9ef;
        border-color: #f0e3c8;
    }
    .contrast-title {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 800;
        margin-bottom: 16px;
    }
    .contrast-title i {
        width: 32px;
        height: 32px;
        border-radius: 10px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
    }
    .contrast-card.good .contrast-title i {
        background: #e4f0e6;
        color: #2e7d32;
    }
    .contrast-card.warn .contrast-title i {
        background: #f7e7c4;
        color: var(--accent-dark);
    }
    .contrast-list li {
        font-size: 14px;
        color: var(--text-secondary);
        padding: 9px 0 9px 24px;
        position: relative;
        border-bottom: 1px dashed #edf1f6;
        line-height: 1.7;
    }
    .contrast-list li:last-child {
        border-bottom: none;
    }
    .contrast-card.good .contrast-list li::before {
        content: "\f00c";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        position: absolute;
        left: 2px;
        color: #2e7d32;
    }
    .contrast-card.warn .contrast-list li::before {
        content: "\f071";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
        position: absolute;
        left: 2px;
        color: var(--accent-dark);
        font-size: 12px;
    }
    /* ===== FAQ ===== */
    .faq-section {
        padding-top: var(--space-section);
        padding-bottom: 28px;
    }
    .faq-list {
        display: grid;
        gap: 12px;
        margin-top: 8px;
    }
    .faq-item {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: 14px;
        overflow: hidden;
        transition: box-shadow .2s ease;
    }
    .faq-item.open {
        box-shadow: var(--shadow);
    }
    .faq-q {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 19px 22px;
        font-size: 15.5px;
        font-weight: 700;
        color: var(--text);
        background: transparent;
        text-align: left;
        transition: color .2s ease;
    }
    .faq-q:hover {
        color: var(--primary);
    }
    .faq-icon {
        width: 27px;
        height: 27px;
        border-radius: 50%;
        border: 1px solid var(--border);
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 13px;
        flex-shrink: 0;
        transition: all .2s ease;
    }
    .faq-icon::before {
        content: "\f067";
        font-family: "Font Awesome 6 Free";
        font-weight: 900;
    }
    .faq-item.open .faq-icon {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
        transform: rotate(45deg);
    }
    .faq-a-wrap {
        display: none;
        padding: 0 22px 20px;
    }
    .faq-item.open .faq-a-wrap {
        display: block;
    }
    .faq-a-wrap p {
        font-size: 14px;
        color: var(--text-secondary);
        padding-top: 6px;
        border-top: 1px dashed #edf0f5;
        line-height: 1.8;
    }
    /* ===== CTA ===== */
    .cta-banner {
        margin-top: calc(var(--space-section) - 20px);
        position: relative;
        border-radius: 20px;
        overflow: hidden;
        background: var(--primary-dark);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center;
        color: #fff;
        isolation: isolate;
        padding: 54px 40px;
        text-align: center;
    }
    .cta-banner::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(120deg, rgba(13, 27, 50, .72), rgba(28, 48, 82, .56));
        z-index: -1;
    }
    .cta-banner h2 {
        font-size: clamp(24px, 3vw, 32px);
        font-weight: 800;
        letter-spacing: -.02em;
        margin-bottom: 14px;
    }
    .cta-banner p {
        max-width: 680px;
        margin: 0 auto 28px;
        font-size: 15px;
        color: rgba(255, 255, 255, .85);
        line-height: 1.8;
    }
    .cta-btn-light {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        background: #fff;
        color: var(--primary-dark);
        border-radius: var(--radius-pill);
        padding: 0 30px;
        height: 50px;
        font-size: 15px;
        font-weight: 700;
        transition: all .2s ease;
        box-shadow: 0 8px 18px rgba(5, 12, 25, .18);
    }
    .cta-btn-light:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 24px rgba(5, 12, 25, .24);
    }
    .cta-btn-outline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border: 1px solid rgba(255, 255, 255, .5);
        color: #fff;
        border-radius: var(--radius-pill);
        padding: 0 24px;
        height: 48px;
        font-size: 14.5px;
        font-weight: 600;
        margin-left: 12px;
        transition: all .2s ease;
    }
    .cta-btn-outline:hover {
        background: rgba(255, 255, 255, .12);
        border-color: #fff;
    }
    /* ===== Footer ===== */
    .site-footer {
        margin-top: calc(var(--space-section) + 12px);
        background: #0f1b2e;
        color: rgba(255, 255, 255, .68);
        position: relative;
    }
    .site-footer::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: rgba(255, 255, 255, .08);
    }
    .site-footer .container {
        padding-top: 64px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: 42px;
        padding-bottom: 46px;
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 19px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 16px;
    }
    .footer-brand .mark {
        background: #d6a33c;
        color: #131c2b;
        border-radius: 8px;
        font-size: 13px;
        font-weight: 800;
        padding: 4px 7px;
        letter-spacing: .03em;
        line-height: 1.2;
    }
    .footer-desc {
        font-size: 13.5px;
        line-height: 2;
        color: rgba(255, 255, 255, .5);
        max-width: 340px;
    }
    .footer-title {
        font-size: 15px;
        font-weight: 700;
        color: rgba(255, 255, 255, .92);
        margin-bottom: 16px;
    }
    .footer-links li {
        margin-bottom: 9px;
    }
    .footer-links a {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        font-size: 14px;
        color: rgba(255, 255, 255, .56);
        transition: color .2s ease, transform .2s ease;
    }
    .footer-links a:hover {
        color: #fff;
    }
    .footer-links a::before {
        content: "";
        width: 4px;
        height: 4px;
        background: var(--accent);
        border-radius: 50%;
    }
    .footer-contact li {
        font-size: 14px;
        color: rgba(255, 255, 255, .56);
        line-height: 1.9;
        margin-bottom: 8px;
    }
    .footer-contact a {
        color: rgba(255, 255, 255, .78);
        transition: color .2s ease;
    }
    .footer-contact a:hover {
        color: #f4b942;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .08);
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px 24px;
        padding: 20px 0;
        font-size: 13px;
        color: rgba(255, 255, 255, .42);
    }
    .footer-statement {
        border-top: 1px solid rgba(255, 255, 255, .06);
        padding: 18px 0 26px;
        font-size: 12px;
        color: rgba(255, 255, 255, .36);
        line-height: 1.8;
    }
    /* ===== Floating ===== */
    .fast-tools {
        position: fixed;
        right: 24px;
        bottom: 24px;
        z-index: 90;
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    .fast-tool-btn {
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background: rgba(255, 255, 255, .9);
        backdrop-filter: blur(6px);
        border: 1px solid var(--border);
        color: var(--text);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        box-shadow: 0 8px 20px rgba(26, 44, 68, .08);
        transition: all .2s ease;
    }
    .fast-tool-btn:hover {
        background: #fff;
        color: var(--primary);
        border-color: rgba(42, 75, 124, .2);
        transform: translateY(-1px);
    }
    .fast-go {
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background: var(--primary);
        color: #fff;
        box-shadow: 0 8px 20px rgba(42, 75, 124, .26);
    }
    .fast-go:hover {
        background: var(--primary-dark);
        color: #fff;
        transform: translateY(-1px);
    }
    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .dual-grid {
            grid-template-columns: 1fr 1fr;
        }
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
            row-gap: 24px;
        }
        .hero-grid {
            gap: 30px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 768px) {
        .header-main {
            min-height: 64px;
            gap: 10px;
        }
        .brand-name small {
            display: none;
        }
        .brand-name strong {
            font-size: 17px;
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            font-size: 14px;
        }
        .search-box {
            display: none;
        }
        .header-cta {
            height: 38px;
            padding: 0 14px;
            font-size: 13.5px;
        }
        .page-hero {
            padding: 40px 0 38px;
        }
        .hero-grid {
            grid-template-columns: 1fr;
        }
        .hero-copy h1 {
            font-size: 30px;
        }
        .hero-visual {
            max-width: 540px;
        }
        .content-section,
        .module {
            --space-section: 60px;
        }
        .contrast-grid {
            grid-template-columns: 1fr;
        }
        .cta-banner {
            padding: 40px 20px;
        }
        .cta-btn-outline {
            margin-left: 0;
            margin-top: 12px;
        }
        .site-footer .container {
            padding-top: 48px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
        }
        .fast-tools {
            right: 16px;
            bottom: 16px;
        }
    }
    @media (max-width: 640px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
        .header-cta {
            width: 40px;
            padding: 0;
            font-size: 0;
            justify-content: center;
            border-radius: 50%;
        }
        .header-cta i {
            font-size: 15px;
            display: inline-flex;
        }
        .dual-grid {
            grid-template-columns: 1fr;
        }
        .card-body {
            padding: 18px;
        }
        .hero-actions {
            flex-direction: column;
        }
        .hero-actions .btn-primary,
        .hero-actions .btn-ghost {
            width: 100%;
        }
        .hero-stats {
            gap: 18px;
        }
        .stat-value {
            font-size: 20px;
        }
        .steps-grid {
            grid-template-columns: 1fr;
        }
        .steps-wrap {
            padding: 18px 12px;
        }
        .section-header {
            align-items: flex-start;
            flex-direction: column;
        }
        .trust-inner {
            justify-content: flex-start;
            padding: 12px 4px;
        }
        .cta-banner {
            border-radius: 16px;
            margin-left: 4px;
            margin-right: 4px;
        }
        .faq-q {
            font-size: 14.5px;
        }
        .fast-go {
            width: 42px;
            height: 42px;
        }
        .fast-tool-btn {
            width: 42px;
            height: 42px;
        }
    }

/* roulang page: category2 */
:root {
    --primary: #2A4B7C;
    --primary-600: #1E3A5F;
    --primary-50: #F0F4FA;
    --accent: #D4880F;
    --accent-600: #C07C0A;
    --canvas: #F6F8FB;
    --card: #FFFFFF;
    --ink: #1B2430;
    --sub: #5B6B7C;
    --muted: #8C9AA8;
    --line: #E3E9F0;
    --radius-card: 12px;
    --radius-btn: 8px;
    --shadow-card: 0 1px 3px rgba(26, 44, 68, 0.05), 0 4px 16px rgba(26, 44, 68, 0.05);
    --shadow-hover: 0 4px 12px rgba(26, 44, 68, 0.08), 0 12px 32px rgba(26, 44, 68, 0.07);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans CJK SC", Arial, sans-serif;
    background: var(--canvas);
    color: var(--ink);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

  body {
    padding-bottom: 0;
  }

  @media (max-width: 767px) {
    body.nav-open {
      overflow: hidden;
    }
  }

  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  @media (max-width: 640px) {
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }
  }

  .desktop-x-pad {
    padding-left: 0;
    padding-right: 0;
  }

  h1, h2, h3, h4 {
    margin: 0;
    line-height: 1.3;
    color: var(--ink);
  }

  p {
    margin: 0;
  }

  ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
  }

  a:hover {
    color: var(--primary);
  }

  img {
    max-width: 100%;
    display: block;
  }

  button, input {
    font: inherit;
  }

  button {
    cursor: pointer;
    border: none;
    background: none;
  }

  :focus-visible {
    outline: 3px solid rgba(42, 75, 124, 0.35);
    outline-offset: 2px;
    border-radius: 4px;
  }

  /* Section / Titles */
  .section-pad {
    padding: 78px 0;
  }

  @media (max-width: 767px) {
    .section-pad {
      padding: 48px 0;
    }
  }

  .sec-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-50);
    color: var(--primary);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .02em;
    margin-bottom: 16px;
  }

  .sec-eyebrow::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--accent);
  }

  .sec-title {
    font-size: 30px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
    margin-bottom: 14px;
  }

  .sec-lead {
    font-size: 15px;
    color: var(--sub);
    max-width: 720px;
    margin-bottom: 42px;
  }

  @media (max-width: 767px) {
    .sec-title {
      font-size: 24px;
    }
    .sec-lead {
      font-size: 14px;
      margin-bottom: 30px;
    }
  }

  .section-head {
    margin-bottom: 42px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-end;
  }

  .section-head .more-link {
    font-size: 14px;
    color: var(--sub);
    border-bottom: 1px solid var(--line);
    padding-bottom: 2px;
    white-space: nowrap;
  }

  .section-head .more-link:hover {
    color: var(--primary);
    border-color: var(--primary);
  }

  .section-white {
    background: #FFFFFF;
  }

  .section-canvas {
    background: var(--canvas);
  }

  .grid-line-bg {
    background-image: linear-gradient(rgba(42, 75, 124, 0.045) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(42, 75, 124, 0.045) 1px, transparent 1px);
    background-size: 28px 28px;
  }

  /* Buttons */
  .btn-primary,
  .btn-outline,
  .btn-amber,
  .btn-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 28px;
    border-radius: var(--radius-btn);
    outline-offset: 3px;
    transition: background .2s ease, transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    cursor: pointer;
    line-height: 1;
    border: 1px solid transparent;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--primary);
    color: #FFFFFF;
    box-shadow: 0 8px 18px rgba(42, 75, 124, 0.16);
  }

  .btn-primary:hover {
    background: var(--primary-600);
    color: #FFFFFF;
    transform: translateY(-1px);
  }

  .btn-outline {
    border-color: rgba(42, 75, 124, .3);
    color: var(--primary);
    background: #FFFFFF;
  }

  .btn-outline:hover {
    border-color: var(--primary);
    background: var(--primary-50);
    color: var(--primary-600);
    transform: translateY(-1px);
  }

  .btn-amber {
    background: var(--accent);
    color: #FFFFFF;
    box-shadow: 0 8px 18px rgba(212, 136, 15, 0.18);
  }

  .btn-amber:hover {
    background: var(--accent-600);
    color: #FFFFFF;
    transform: translateY(-1px);
  }

  .btn-light {
    background: #FFFFFF;
    color: var(--primary);
    border-color: #FFFFFF;
  }

  .btn-light:hover {
    background: rgba(255, 255, 255, .92);
    color: var(--primary-600);
    transform: translateY(-1px);
  }

  .btn-sm {
    padding: 10px 16px;
    font-size: 14px;
  }

  .btn-large {
    padding: 15px 36px;
  }

  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(227, 233, 240, .9);
    box-shadow: 0 2px 8px rgba(26, 44, 68, .03);
  }

  .header-top {
    border-bottom: 1px solid var(--line);
  }

  .header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    height: 70px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    flex-shrink: 0;
  }

  .brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: var(--primary);
    color: #fff;
    border-radius: 10px;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: .02em;
    box-shadow: 0 6px 14px rgba(42, 75, 124, .2);
  }

  .brand-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--ink);
  }

  .brand-name span {
    color: var(--primary);
  }

  .header-search {
    flex: 1;
    max-width: 420px;
    position: relative;
  }

  .header-search form {
    display: flex;
    align-items: center;
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 4px 6px 4px 18px;
    transition: border-color .2s, box-shadow .2s;
  }

  .header-search form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(42, 75, 124, .12);
  }

  .header-search input {
    border: none;
    outline: none;
    background: transparent;
    padding: 8px 0;
    font-size: 14px;
    flex: 1;
    width: 0;
    color: var(--ink);
  }

  .header-search button {
    background: var(--primary);
    color: #FFFFFF;
    border-radius: 999px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    transition: background .2s;
  }

  .header-search button:hover {
    background: var(--primary-600);
  }

  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--accent);
    color: #fff;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    box-shadow: 0 6px 16px rgba(212, 136, 15, .18);
    transition: background .2s ease, transform .2s ease;
    white-space: nowrap;
  }

  .header-cta:hover {
    background: var(--accent-600);
    color: #fff;
    transform: translateY(-1px);
  }

  .header-bottom-inner {
    display: flex;
    align-items: center;
    min-height: 50px;
    gap: 12px;
  }

  .channel-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 8px 0;
    flex-wrap: nowrap;
  }

  .channel-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-tab {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    background: #ffffff;
    border: 1px solid var(--line);
    transition: all .2s ease;
    white-space: nowrap;
    line-height: 1;
  }

  .nav-tab:hover {
    background: var(--primary-50);
    border-color: rgba(42, 75, 124, .2);
    color: var(--primary);
  }

  .nav-tab.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    font-weight: 600;
    box-shadow: 0 5px 12px rgba(42, 75, 124, .18);
  }

  .nav-tab.active:hover {
    background: var(--primary-600);
    color: #fff;
  }

  @media (max-width: 1199px) {
    .header-search {
      max-width: 320px;
    }
  }

  @media (max-width: 991px) {
    .header-search {
      display: none;
    }
  }

  @media (max-width: 767px) {
    .header-top-inner {
      height: 60px;
    }
    .brand-logo {
      width: 32px;
      height: 32px;
      border-radius: 8px;
      font-size: 13px;
    }
    .brand-name {
      font-size: 17px;
    }
    .header-cta {
      padding: 8px 14px;
      font-size: 13px;
    }
    .header-bottom-inner {
      min-height: 46px;
    }
    .channel-nav {
      gap: 6px;
      padding: 6px 0;
    }
    .nav-tab {
      padding: 8px 14px;
      font-size: 13px;
    }
  }

  /* Page hero */
  .cat-hero {
    position: relative;
    background-color: var(--canvas);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
    background-image: linear-gradient(rgba(42, 75, 124, .04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(42, 75, 124, .04) 1px, transparent 1px);
    background-size: 32px 32px;
  }

  .cat-hero::before {
    content: "";
    position: absolute;
    right: -60px;
    top: 20px;
    width: 300px;
    height: 300px;
    background: rgba(212, 136, 15, .10);
    filter: blur(40px);
    border-radius: 50%;
    pointer-events: none;
  }

  .cat-hero-row {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 54px;
    align-items: center;
    padding-top: 66px;
    padding-bottom: 72px;
  }

  @media (max-width: 991px) {
    .cat-hero-row {
      grid-template-columns: 1fr;
      gap: 30px;
      padding-top: 46px;
      padding-bottom: 52px;
    }
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255, .9);
    border: 1px solid var(--line);
    color: var(--primary);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(42, 75, 124, .04);
  }

  .hero-badge .dot {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 999px;
  }

  .cat-hero h1 {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.28;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    color: var(--ink);
  }

  .cat-hero h1 strong {
    color: var(--primary);
    font-weight: 700;
  }

  .hero-sub {
    font-size: 16px;
    color: var(--sub);
    max-width: 620px;
    line-height: 1.85;
    margin-bottom: 28px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 26px;
  }

  .hero-pills {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 20px;
    font-size: 13px;
    color: var(--muted);
  }

  .hero-pills span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .hero-pills span::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
  }

  .hero-panel {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
    position: relative;
  }

  .hero-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
    background: #FBFCFE;
  }

  .hero-panel-header span {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .hero-panel-header span::before {
    content: "";
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 3px;
    display: inline-block;
  }

  .status-label {
    font-size: 12px;
    font-weight: 600;
    color: #2E7D32;
    background: rgba(46, 125, 50, .1);
    padding: 4px 10px;
    border-radius: 99px;
  }

  .hero-panel-body {
    padding: 20px;
    display: grid;
    gap: 16px;
  }

  .check-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--sub);
    line-height: 1.6;
  }

  .check-item .check-icon {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--primary-50);
    color: var(--primary);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
  }

  .check-item strong {
    display: block;
    color: var(--ink);
    font-weight: 600;
    font-size: 14px;
  }

  .hero-panel-footer {
    padding: 14px 20px;
    background: var(--primary-50);
    border-top: 1px solid rgba(42,75,124,.06);
    font-size: 13px;
    color: var(--primary);
  }

  @media (max-width: 767px) {
    .cat-hero h1 {
      font-size: 30px;
    }
    .hero-sub {
      font-size: 15px;
    }
    .hero-actions .btn-primary,
    .hero-actions .btn-outline {
      padding: 11px 18px;
      font-size: 14px;
      width: 100%;
    }
    .hero-pills {
      gap: 8px 12px;
    }
  }

  /* Quick numbers / catalog */
  .substrip {
    border-bottom: 1px solid var(--line);
    background: #FFFFFF;
  }

  .substrip-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 28px 0;
  }

  .substrip-item {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .substrip-num {
    font-size: 34px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
  }

  .substrip-info {
    font-size: 13px;
    color: var(--muted);
  }

  .substrip-info strong {
    display: block;
    font-size: 14px;
    color: var(--ink);
    font-weight: 600;
  }

  @media (max-width: 767px) {
    .substrip-grid {
      grid-template-columns: 1fr;
      gap: 18px;
      padding: 20px 0;
    }
  }

  /* Two column grid separation */
  .split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
  }

  @media (max-width: 991px) {
    .split-grid {
      grid-template-columns: 1fr;
    }
  }

  /* Source cards */
  .source-card {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 30px;
    box-shadow: var(--shadow-card);
    transition: transform .2s ease, box-shadow .2s ease;
    height: 100%;
    position: relative;
    display: block;
  }

  .source-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
  }

  .source-card .card-no {
    position: absolute;
    right: 24px;
    top: 22px;
    font-size: 40px;
    font-weight: 700;
    color: rgba(42,75,124,.08);
    line-height: 1;
  }

  .card-icon {
    width: 42px;
    height: 42px;
    background: var(--primary);
    color: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 18px;
  }

  .source-card:nth-child(2) .card-icon,
  .source-card:nth-child(4) .card-icon {
    background: var(--accent);
  }

  .source-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: 0;
  }

  .source-card p {
    font-size: 14px;
    color: var(--sub);
    line-height: 1.8;
    margin-bottom: 16px;
  }

  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
  }

  .tag {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    background: var(--canvas);
    color: var(--sub);
    font-size: 12px;
    border: 1px solid var(--line);
  }

  .tag-blue {
    background: var(--primary-50);
    color: var(--primary);
    border-color: rgba(42,75,124,.12);
  }

  /* Quick route cards */
  .route-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  @media (max-width: 640px) {
    .route-grid {
      grid-template-columns: 1fr;
      gap: 14px;
    }
  }

  .route-item {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 22px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all .2s ease;
  }

  .route-item:hover {
    box-shadow: var(--shadow-card);
    border-color: rgba(42,75,124,.18);
    transform: translateY(-2px);
  }

  .route-no {
    font-weight: 700;
    font-size: 22px;
    color: var(--primary);
    line-height: 1;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: 10px;
  }

  .route-copy strong {
    display: block;
    font-size: 15px;
    color: var(--ink);
    margin-bottom: 4px;
  }

  .route-copy span {
    display: block;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.7;
  }

  /* Steps */
  .step-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
    position: relative;
  }

  .step-grid::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 24px;
    height: 1px;
    background: var(--line);
    pointer-events: none;
  }

  .step-item {
    position: relative;
    padding-top: 56px;
  }

  .step-item::before {
    counter-increment: step;
    content: counter(step, decimal-leading-zero);
    position: absolute;
    top: 0;
    left: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--ink);
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 6px var(--canvas);
    z-index: 1;
  }

  .step-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
  }

  .step-item p {
    font-size: 13px;
    color: var(--sub);
    line-height: 1.8;
  }

  .steps-section {
    background: #FFFFFF;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }

  @media (max-width: 991px) {
    .step-grid {
      grid-template-columns: 1fr 1fr;
      gap: 26px 16px;
    }
    .step-grid::before {
      display: none;
    }
  }

  @media (max-width: 600px) {
    .step-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }
  }

  /* Verify section */
  .verify-panel {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 44px;
    align-items: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 32px;
    box-shadow: var(--shadow-card);
  }

  @media (max-width: 991px) {
    .verify-panel {
      grid-template-columns: 1fr;
      gap: 28px;
      padding: 20px;
    }
  }

  .verify-image-wrap {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
  }

  .verify-image-wrap img {
    width: 100%;
    height: 360px;
    object-fit: cover;
    border-radius: 16px;
    background: var(--canvas);
  }

  .verify-image-wrap .img-tagline {
    position: absolute;
    left: 12px;
    bottom: 12px;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(4px);
    border-radius: 10px;
    font-size: 13px;
    padding: 8px 14px;
    color: var(--ink);
    box-shadow: var(--shadow-card);
  }

  .checklist {
    display: grid;
    gap: 16px;
    margin-top: 20px;
  }

  .checklist-row {
    display: grid;
    grid-template-columns: 30px 1fr;
    gap: 12px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--line);
  }

  .checklist-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .checklist-num {
    font-weight: 700;
    color: var(--accent);
    font-size: 18px;
    line-height: 1.2;
  }

  .checklist-row strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
  }

  .checklist-row p {
    font-size: 14px;
    color: var(--sub);
    line-height: 1.8;
  }

  /* Side note card */
  .side-note {
    background: var(--primary-50);
    border-radius: 16px;
    padding: 22px 24px;
    font-size: 14px;
    color: var(--primary-600);
    line-height: 1.8;
    display: flex;
    gap: 12px;
    margin-top: 20px;
  }

  .side-note strong {
    color: var(--primary);
  }

  /* Compare table */
  .compare-section {
    background: var(--ink);
    color: rgba(255,255,255,.86);
    border-radius: 0;
    position: relative;
    overflow: hidden;
  }

  .compare-section .sec-title,
  .compare-section .sec-lead {
    color: #fff;
  }

  .compare-section .sec-eyebrow {
    background: rgba(255,255,255,.12);
    color: #FFFFFF;
  }

  .compare-wrap {
    overflow-x: auto;
    border-radius: 14px;
  }

  .compare-table {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    border: 1px solid rgba(255,255,255,.14);
    overflow: hidden;
    border-radius: 16px;
    background: rgba(255,255,255,.04);
  }

  .compare-table th,
  .compare-table td {
    padding: 16px 18px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,.1);
    vertical-align: top;
    font-size: 14px;
    line-height: 1.7;
  }

  .compare-table tr:last-child th,
  .compare-table tr:last-child td {
    border-bottom: none;
  }

  .compare-table th {
    font-size: 13px;
    letter-spacing: .02em;
    color: rgba(255,255,255,.55);
    font-weight: 500;
    width: 14%;
    min-width: 110px;
    background: rgba(255,255,255,.04);
  }

  .compare-table td {
    color: rgba(255,255,255,.84);
  }

  .compare-table td.good-col {
    background: rgba(46,125,50,.08);
    color: #D9F0DA;
  }

  .compare-table td.bad-col {
    background: rgba(211,47,47,.06);
    color: #F0CFCF;
  }

  .compare-table th.good-head {
    color: #9ED0A2;
  }

  .compare-table th.bad-head {
    color: #F0A8A8;
  }

  @media (max-width: 767px) {
    .compare-table th,
    .compare-table td {
      padding: 13px 12px;
      font-size: 13px;
    }
  }

  .table-note {
    font-size: 13px;
    color: rgba(255,255,255,.4);
    margin-top: 14px;
  }

  /* FAQ */
  .faq-list {
    display: grid;
    gap: 16px;
    max-width: 880px;
    margin: 0 auto;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
  }

  .faq-item[open] {
    border-color: rgba(42,75,124,.18);
    box-shadow: var(--shadow-card);
  }

  .faq-item summary {
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    color: var(--ink);
    line-height: 1.5;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after {
    content: "+";
    font-size: 24px;
    font-weight: 300;
    color: var(--primary);
    transition: transform .25s ease;
    line-height: 1;
    flex-shrink: 0;
  }

  .faq-item[open] summary::after {
    content: "−";
    transform: rotate(180deg);
  }

  .faq-answer {
    padding: 0 24px 22px;
    color: var(--sub);
    font-size: 14px;
    line-height: 1.9;
    border-top: 1px dashed var(--line);
    margin-top: 0;
  }

  .faq-answer p {
    padding-top: 16px;
  }

  @media (max-width: 767px) {
    .faq-item summary {
      padding: 16px 18px;
      font-size: 14px;
    }
    .faq-answer {
      padding: 0 18px 18px;
    }
  }

  /* CTA */
  .cta-block {
    background: var(--primary);
    background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 30px 30px;
    color: #FFFFFF;
  }

  .cta-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 76px 20px;
  }

  .cta-inner h2 {
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
  }

  .cta-inner p {
    color: rgba(255,255,255,.75);
    font-size: 15px;
    max-width: 620px;
    margin-bottom: 30px;
    line-height: 1.8;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }

  .cta-note {
    font-size: 13px;
    color: rgba(255,255,255,.5);
    margin-top: 20px;
  }

  @media (max-width: 767px) {
    .cta-inner {
      padding: 54px 0;
    }
    .cta-inner h2 {
      font-size: 24px;
    }
  }

  /* Footer */
  .site-footer {
    background: #131C2B;
    color: rgba(255,255,255,.72);
    font-size: 14px;
    border-top: 1px solid rgba(255,255,255,.06);
    background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 32px 32px;
  }

  .site-footer a {
    color: rgba(255,255,255,.72);
  }

  .site-footer a:hover {
    color: #fff;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding: 64px 0 48px;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #FFFFFF;
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 18px;
  }

  .footer-brand .mark {
    width: 36px;
    height: 36px;
    background: #fff;
    color: var(--ink);
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
  }

  .footer-desc {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255,255,255,.55);
    margin-bottom: 0;
    max-width: 320px;
  }

  .footer-title {
    font-weight: 600;
    color: #FFFFFF;
    margin: 4px 0 16px;
    font-size: 15px;
  }

  .footer-links li {
    margin-bottom: 10px;
  }

  .footer-links a {
    font-size: 14px;
  }

  .footer-contact {
    font-style: normal;
    font-size: 14px;
    display: grid;
    gap: 10px;
  }

  .footer-contact a {
    word-break: break-all;
  }

  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    color: rgba(255,255,255,.45);
    border-top: 1px solid rgba(255,255,255,.08);
    padding: 20px 0;
    font-size: 13px;
  }

  .footer-statement {
    font-size: 12px;
    color: rgba(255,255,255,.32);
    line-height: 1.7;
    padding-bottom: 30px;
    border-top: 1px solid rgba(255,255,255,.04);
    padding-top: 20px;
  }

  @media (max-width: 991px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
      padding: 48px 0 40px;
    }
  }

  @media (max-width: 600px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .footer-bottom {
      flex-direction: column;
    }
  }

  /* Floating / mobile cta */
  .float-cta {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 80;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
  }

  .float-top-btn,
  .float-guide-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #FFFFFF;
    color: var(--primary);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    font-size: 18px;
    cursor: pointer;
  }

  .float-guide-btn {
    width: auto;
    border-radius: 999px;
    padding: 0 20px;
    height: 46px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-color: var(--primary);
  }

  .float-guide-btn:hover {
    background: var(--primary-600);
  }

  @media (max-width: 991px) {
    .float-cta {
      display: none;
    }
  }

  .mobile-bottom-bar {
    display: none;
  }

  @media (max-width: 991px) {
    body {
      padding-bottom: 60px;
    }
    .mobile-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 80;
      background: #FFFFFF;
      border-top: 1px solid var(--line);
      display: flex;
      align-items: center;
      justify-content: space-around;
      gap: 10px;
      padding: 8px 12px;
      box-shadow: 0 -4px 16px rgba(26,44,68,.08);
    }
    .mobile-bottom-bar a {
      display: inline-flex;
      justify-content: center;
      width: 48%;
      padding: 10px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
    }
    .mb-backtop {
      background: var(--canvas);
      border: 1px solid var(--line);
      color: var(--ink);
    }
    .mb-guide {
      background: var(--primary);
      color: #fff;
    }
    .mb-guide:hover {
      background: var(--primary-600);
      color: #fff;
    }
  }

  @media (min-width: 992px) {
    .mobile-bottom-bar {
      display: none;
    }
  }

  .compare-section .theme-note {
    margin-top: 18px;
    font-size: 13px;
  }

/* roulang page: category4 */
:root {
            --primary: #2A4B7C;
            --primary-dark: #1E3A5F;
            --accent: #D4880F;
            --accent-dark: #C07C0A;
            --canvas: #F6F8FB;
            --card: #FFFFFF;
            --text-main: #1B2430;
            --text-sub: #5B6B7C;
            --text-muted: #8C9AA8;
            --border: #E3E9F0;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 1px 3px rgba(26, 44, 68, .05), 0 4px 16px rgba(26, 44, 68, .05);
            --shadow-hover: 0 4px 12px rgba(26, 44, 68, .08), 0 12px 32px rgba(26, 44, 68, .07);
            --font-cn: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans CJK SC", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background: var(--canvas);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            display: block;
            max-width: 100%;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: transparent;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(42, 75, 124, .35);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 76px 0;
        }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid #E6EBF2;
            transition: box-shadow .15s ease, background .15s ease;
        }

        .site-header.is-scrolled {
            box-shadow: 0 2px 10px rgba(26, 44, 68, .04);
            background: rgba(255, 255, 255, .97);
        }

        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 12px 0;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            letter-spacing: .5px;
            box-shadow: 0 4px 10px rgba(42, 75, 124, .18);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: -.01em;
            color: var(--text-main);
            white-space: nowrap;
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            width: 240px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: #fff;
            padding: 0 14px;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 75, 124, .12);
        }

        .search-box svg {
            width: 16px;
            height: 16px;
            color: var(--text-muted);
            margin-right: 6px;
        }

        .search-box input {
            width: 100%;
            font-size: 13px;
            color: var(--text-main);
            background: transparent;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            font-weight: 600;
            border-radius: 10px;
            cursor: pointer;
            transition: background .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(42, 75, 124, .18);
        }

        .btn-outline {
            border: 1px solid var(--border);
            background: #fff;
            color: var(--primary);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: #F0F4FA;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-dark);
        }

        .btn-sm {
            height: 32px;
            padding: 0 14px;
            font-size: 13px;
        }

        .btn-md {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .btn-lg {
            height: 48px;
            padding: 0 26px;
            font-size: 15px;
        }

        .channel-nav {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding: 4px 0 10px;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 18px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: transparent;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            white-space: nowrap;
            transition: all .2s ease;
            flex-shrink: 0;
        }

        .nav-tab:hover {
            background: #EEF3FA;
            color: var(--primary);
            border-color: #CED9E6;
        }

        .nav-tab.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section {
                padding: 48px 0;
            }

            .header-top {
                padding: 8px 0;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                border-radius: 8px;
                font-size: 11px;
            }

            .brand-text {
                font-size: 15px;
            }

            .brand-sub {
                display: none;
            }

            .search-box {
                width: 36px;
                height: 36px;
                border-radius: 50%;
                padding: 0;
                justify-content: center;
            }

            .search-box input {
                display: none;
            }

            .search-box svg {
                margin: 0;
            }

            .btn-header-text {
                display: none;
            }

            .btn-header-mobile {
                display: inline-flex;
                height: 36px;
                padding: 0 14px;
                font-size: 13px;
            }
        }

        @media (min-width: 769px) {
            .btn-header-mobile {
                display: none;
            }
        }

        /* category hero */
        .cat-hero {
            position: relative;
            background: var(--primary);
            padding: 84px 0;
            overflow: hidden;
        }

        .cat-hero .grid-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }

        .cat-hero .glow {
            position: absolute;
            right: -80px;
            top: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(212, 136, 15, .16), transparent 66%);
            pointer-events: none;
        }

        .cat-hero-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }

        .cat-hero .hero-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(255, 255, 255, .25);
            background: rgba(255, 255, 255, .08);
            color: #fff;
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 18px;
            backdrop-filter: blur(2px);
        }

        .cat-hero h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -.01em;
            margin-bottom: 16px;
        }

        .cat-hero p.lead {
            font-size: 15px;
            color: rgba(255, 255, 255, .82);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-opts {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .hero-safe-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .68);
        }

        .hero-safe-row span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-safe-row i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #E0A53C;
            display: inline-block;
        }

        .cat-hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: flex-end;
        }

        .cat-hero-visual .visual-card {
            width: 100%;
            max-width: 400px;
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            box-shadow: 0 18px 50px rgba(7, 15, 30, .3);
        }

        .visual-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 14px;
        }

        .visual-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
            border-bottom: 1px dashed #E4EAF1;
            padding: 6px 0;
        }

        .visual-line:last-child {
            border-bottom: none;
        }

        .visual-line .dot {
            width: 7px;
            height: 7px;
            border-radius: 2px;
            background: var(--accent);
            flex-shrink: 0;
        }

        .visual-line .tag {
            margin-left: auto;
            font-size: 11px;
            color: #2F7A44;
            background: #EAF6EC;
            border-radius: 999px;
            padding: 0 8px;
        }

        @media (max-width: 768px) {
            .cat-hero {
                padding: 48px 0;
            }

            .cat-hero h1 {
                font-size: 28px;
            }

            .cat-hero p.lead {
                font-size: 14px;
            }

            .cat-hero-visual {
                margin-top: 28px;
                justify-content: center;
            }
        }

        /* service strip */
        .service-strip {
            background: #fff;
            border-bottom: 1px solid #E9EEF4;
        }

        .service-strip .strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 26px 0;
        }

        .strip-item {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .strip-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            min-width: 58px;
        }

        .strip-num small {
            font-size: 14px;
            font-weight: 500;
            color: var(--accent);
            margin-left: 2px;
        }

        .strip-label {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .service-strip .strip-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 20px 0;
            }

            .strip-num {
                font-size: 22px;
                min-width: 48px;
            }
        }

        /* section header */
        .sec-head {
            margin-bottom: 42px;
            max-width: 680px;
        }

        .sec-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: .04em;
            margin-bottom: 8px;
        }

        .sec-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -.01em;
            margin-bottom: 10px;
        }

        .sec-sub {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .sec-title {
                font-size: 23px;
            }

            .sec-sub {
                font-size: 14px;
            }

            .sec-head {
                margin-bottom: 28px;
            }
        }

        /* timeline */
        .timeline-wrap {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 48px;
            align-items: center;
        }

        .timeline {
            position: relative;
            padding-left: 32px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 9px;
            top: 12px;
            bottom: 24px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), #C9D5E3);
            border-radius: 4px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 34px 18px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -32px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #D8E1EC;
            box-shadow: 0 0 0 3px #fff, 0 0 0 4px #E1E8F0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 9px;
            font-weight: 700;
        }

        .timeline-item:nth-child(2) .timeline-dot {
            background: var(--accent);
            border-color: #EAD9B2;
        }

        .timeline-item:nth-child(3) .timeline-dot {
            background: #387A51;
            border-color: #CBDFD0;
        }

        .timeline-item:nth-child(4) .timeline-dot {
            background: #6A5CA8;
            border-color: #D5CFF0;
        }

        .timeline-body {
            background: #fff;
            border: 1px solid #E9EEF5;
            border-radius: 12px;
            padding: 18px 20px;
            box-shadow: var(--shadow-card);
            transition: transform .2s ease, box-shadow .2s ease;
        }

        .timeline-body:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }

        .timeline-head {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 6px;
        }

        .timeline-head h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
        }

        .timeline-tag {
            font-size: 11px;
            background: #F0F4FA;
            color: var(--primary);
            border-radius: 999px;
            padding: 2px 10px;
            font-weight: 500;
        }

        .timeline-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            margin: 0;
        }

        .timeline-side {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .timeline-side img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .timeline-side .side-pad {
            padding: 20px;
        }

        .timeline-side h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .timeline-side p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .timeline-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .timeline-side {
                max-width: 400px;
            }
        }

        @media (max-width: 520px) {
            .timeline {
                padding-left: 24px;
            }

            .timeline-item {
                padding-left: 11px;
            }

            .timeline-dot {
                left: -24px;
                width: 17px;
                height: 17px;
            }
        }

        /* help topic list */
        .help-index {
            background: #fff;
            border: 1px solid #E9EEF5;
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .help-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 15px 22px;
            border-bottom: 1px solid #F1F4F8;
            transition: background .18s ease;
        }

        .help-row:last-child {
            border-bottom: none;
        }

        .help-row:hover {
            background: #F4F7FB;
        }

        .help-index-icon {
            width: 26px;
            height: 26px;
            border-radius: 8px;
            background: #EDF1F6;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .help-index-icon.fix {
            background: #EAF4EE;
            color: #2F7A44;
        }

        .help-row-main {
            flex: 1;
            min-width: 0;
        }

        .help-row-main .title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .help-row-main .desc {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-top: 2px;
        }

        .help-row .badge {
            flex-shrink: 0;
            font-size: 12px;
            color: var(--text-sub);
            background: #F4F6F9;
            border-radius: 999px;
            padding: 3px 10px;
            white-space: nowrap;
        }

        .help-row .arrow {
            color: #B4C2D2;
            font-size: 14px;
            flex-shrink: 0;
        }

        @media (max-width: 640px) {
            .help-row .badge {
                display: none;
            }

            .help-row-main .desc {
                white-space: normal;
                overflow: visible;
                display: -webkit-box;
                -webkit-line-clamp: 1;
                -webkit-box-orient: vertical;
            }
        }

        /* contact dual card */
        .dual-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .contact-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 28px;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .contact-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-card h3 .ic {
            width: 34px;
            height: 34px;
            border-radius: 9px;
            background: #EEF3FA;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .service-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .service-list li {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            border-bottom: 1px dashed #EEF1F5;
            padding: 10px 0;
            font-size: 14px;
        }

        .service-list li:last-child {
            border-bottom: none;
        }

        .service-list .key {
            color: var(--text-sub);
            flex-shrink: 0;
        }

        .service-list .val {
            color: var(--text-main);
            font-weight: 500;
            text-align: right;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .check-list li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            font-size: 14px;
            color: var(--text-sub);
            padding: 7px 0;
        }

        .check-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 2px;
            background: var(--accent);
            margin-top: 9px;
            flex-shrink: 0;
        }

        @media (max-width: 860px) {
            .dual-grid {
                grid-template-columns: 1fr;
            }
        }

        /* guide strip */
        .guide-banner {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            overflow: hidden;
            display: grid;
            grid-template-columns: 1fr 1fr;
            box-shadow: var(--shadow-card);
        }

        .guide-img {
            min-height: 260px;
            background-size: cover;
            background-position: center;
        }

        .guide-pad {
            padding: 34px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .guide-pad h3 {
            font-size: 21px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .guide-pad p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .guide-pill-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 18px;
        }

        .guide-pill {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            background: #F1F5F9;
            border-radius: 999px;
            padding: 4px 12px;
            color: var(--text-sub);
            border: 1px solid #E4EAF1;
        }

        @media (max-width: 768px) {
            .guide-banner {
                grid-template-columns: 1fr;
            }

            .guide-img {
                min-height: 180px;
            }

            .guide-pad {
                padding: 24px;
            }
        }

        /* faq */
        .faq-card {
            max-width: 820px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid #EFF3F7;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 22px;
            background: transparent;
            cursor: pointer;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            transition: background .2s ease;
        }

        .faq-question:hover {
            background: #FAFBFD;
        }

        .faq-mark {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #EFF3F8;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
            transition: all .25s ease;
        }

        .faq-item.active .faq-mark {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.85;
        }

        /* CTA band */
        .cta-band {
            position: relative;
            background: #13213A;
            overflow: hidden;
            border-radius: 18px;
            padding: 64px 40px;
            text-align: center;
            color: #fff;
        }

        .cta-band .grid-bg {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(to right, rgba(255, 255, 255, .03) 1px, transparent 1px), linear-gradient(to bottom, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, .78);
            max-width: 540px;
            margin: 0 auto 26px;
            line-height: 1.8;
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        @media (max-width: 640px) {
            .cta-band {
                padding: 40px 20px;
            }

            .cta-inner h2 {
                font-size: 23px;
            }
        }

        /* footer */
        .site-footer {
            background: #101C2E;
            color: #B6C2D2;
            margin-top: 76px;
            border-top: 1px solid rgba(255, 255, 255, .04);
            background-image: linear-gradient(rgba(255, 255, 255, .015) 1px, transparent 1px);
            background-size: 100% 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding: 56px 0 42px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .footer-brand .mark {
            width: 34px;
            height: 34px;
            background: var(--primary);
            color: #fff;
            border-radius: 9px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.85;
            color: #8E9EB2;
            margin: 0;
            max-width: 280px;
        }

        .footer-title {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: #9BABC1;
            font-size: 13px;
            transition: color .2s ease;
        }

        .footer-links a:hover {
            color: #E6A93C;
        }

        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 13px;
            color: #9BABC1;
            line-height: 2;
        }

        .footer-contact a {
            color: #D3DDE9;
            transition: color .2s ease;
        }

        .footer-contact a:hover {
            color: #E6A93C;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            color: #647587;
            font-size: 12px;
            padding: 18px 0;
            border-top: 1px solid rgba(255, 255, 255, .05);
        }

        .footer-statement {
            color: #5E6D80;
            font-size: 12px;
            line-height: 1.8;
            padding: 0 0 26px;
            max-width: 920px;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
                padding: 38px 0 28px;
            }
        }

        @media (max-width: 560px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .footer-bottom {
                flex-direction: column;
            }
        }

        /* floating */
        .floating-wrap {
            position: fixed;
            right: 20px;
            bottom: 24px;
            z-index: 60;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 22px rgba(18, 33, 58, .18);
            cursor: pointer;
            transition: all .2s ease;
            font-size: 13px;
            color: #fff;
        }

        .float-btn:hover {
            transform: translateY(-2px);
        }

        .float-top {
            background: #fff;
            color: var(--text-main);
            border: 1px solid var(--border);
        }

        .float-top svg {
            width: 18px;
            height: 18px;
        }

        .float-go {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
        }

        .float-go span {
            font-size: 10px;
            text-align: center;
            line-height: 1.2;
        }