/* roulang page: index */
:root {
            --color-ink: #0F1A18;
            --color-ink-light: #172522;
            --color-accent: #00C478;
            --color-accent-dark: #00A866;
            --color-bone: #F7F5F0;
            --color-card: #FFFFFF;
            --color-body: #26302E;
            --color-muted: #8A9995;
            --color-line: #E4E8E5;
            --radius-lg: 20px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-default: 0 4px 20px rgba(15,26,24,.06);
            --shadow-hover: 0 16px 40px rgba(15,26,24,.12);
            --fs-display: clamp(44px, 7vw, 84px);
            --fs-h1: clamp(32px, 4.5vw, 52px);
            --fs-h2: clamp(26px, 3vw, 36px);
            --fs-h3: clamp(20px, 1.8vw, 24px);
            --fs-body: 16px;
            --fs-sm: 14px;
            --fs-label: 12px;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-number: "DIN Alternate", "Oswald", var(--font-sans);
            --sidebar-width: 278px;
            --transition: all .24s ease-out;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: var(--fs-body);
            line-height: 1.8;
            color: var(--color-body);
            background: var(--color-bone);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        button {
            border: none;
            background: none;
            font-family: inherit;
            cursor: pointer;
        }

        input,
        textarea,
        select {
            font-family: inherit;
            font-size: var(--fs-body);
            outline: none;
        }

        .container-app {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: clamp(20px, 5vw, 64px);
            padding-right: clamp(20px, 5vw, 64px);
        }

        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding-left: clamp(20px, 4vw, 48px);
            padding-right: clamp(20px, 4vw, 48px);
        }

        .section-padding {
            padding: 96px 0;
        }

        @media (max-width: 767px) {
            .section-padding {
                padding: 56px 0;
            }
        }

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: var(--sidebar-width);
            background: var(--color-ink);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 36px 22px 24px;
            border-right: 1px solid rgba(255,255,255,.06);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 8px;
            margin-bottom: 44px;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            background: var(--color-accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            overflow: hidden;
        }

        .logo-mark::before {
            content: "";
            width: 18px;
            height: 18px;
            border: 3px solid var(--color-ink);
            border-radius: 50%;
            border-right-color: transparent;
            display: block;
            transform: rotate(25deg);
        }

        .logo-mark::after {
            content: "";
            position: absolute;
            width: 20px;
            height: 3px;
            background: var(--color-ink);
            right: 4px;
            bottom: 10px;
            border-radius: 2px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
            transition: var(--transition);
        }

        .sidebar .nav-group {
            margin-bottom: 28px;
        }

        .sidebar .nav-label {
            font-size: var(--fs-label);
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: rgba(255,255,255,.4);
            padding: 0 12px;
            margin-bottom: 10px;
        }

        .sidebar .nav-link-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 44px;
            padding: 0 14px;
            border-radius: 10px;
            color: rgba(255,255,255,.78);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: var(--transition);
            margin-bottom: 2px;
        }

        .sidebar .nav-link-custom i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            opacity: .75;
        }

        .sidebar .nav-link-custom:hover {
            background: rgba(255,255,255,.08);
            color: #fff;
        }

        .sidebar .nav-link-custom.active {
            background: rgba(255,255,255,.06);
            color: #fff;
        }

        .sidebar .nav-link-custom.active::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--color-accent);
            border-radius: 3px;
        }

        .sidebar .nav-link-custom.active i {
            color: var(--color-accent);
            opacity: 1;
        }

        .sidebar-footer {
            margin-top: auto;
            padding: 20px 12px 0;
            border-top: 1px solid rgba(255,255,255,.08);
        }

        .sidebar-footer .tagline {
            font-size: 13px;
            color: rgba(255,255,255,.45);
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .sidebar-footer .copyright-micro {
            font-size: 12px;
            color: rgba(255,255,255,.28);
        }

        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-width: 0;
        }

        .topbar {
            display: none;
        }

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

            .main-content {
                margin-left: 0;
            }

            .topbar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 64px;
                background: var(--color-ink);
                padding: 0 clamp(16px, 4vw, 32px);
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                z-index: 1050;
            }

            .topbar .logo-text {
                font-size: 18px;
            }

            .menu-toggle {
                width: 44px;
                height: 44px;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-direction: column;
                gap: 6px;
            }

            .menu-toggle span {
                display: block;
                width: 22px;
                height: 2px;
                background: #fff;
                border-radius: 2px;
                transition: var(--transition);
            }

            .menu-toggle.active span:nth-child(1) {
                transform: translateY(8px) rotate(45deg);
            }

            .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }

            .menu-toggle.active span:nth-child(3) {
                transform: translateY(-8px) rotate(-45deg);
            }

            .topbar .btn-ghost-sm {
                color: var(--color-accent);
                border: 1px solid rgba(0,196,120,.5);
                padding: 6px 14px;
                border-radius: 999px;
                font-size: 13px;
                font-weight: 600;
                transition: var(--transition);
            }

            .topbar .btn-ghost-sm:hover {
                background: var(--color-accent);
                color: var(--color-ink);
                border-color: var(--color-accent);
            }

            .drawer {
                position: fixed;
                top: 0;
                left: 0;
                bottom: 0;
                width: min(320px, 86vw);
                background: var(--color-ink);
                z-index: 1060;
                transform: translateX(-100%);
                transition: transform .3s ease-out;
                padding: 24px 20px;
                display: flex;
                flex-direction: column;
                overflow-y: auto;
            }

            .drawer.open {
                transform: translateX(0);
            }

            .drawer-backdrop {
                position: fixed;
                inset: 0;
                background: rgba(0,0,0,.55);
                z-index: 1055;
                opacity: 0;
                pointer-events: none;
                transition: opacity .3s ease;
            }

            .drawer-backdrop.show {
                opacity: 1;
                pointer-events: auto;
            }

            body.drawer-open {
                overflow: hidden;
            }

            body {
                padding-top: 64px;
            }
        }

        @media (min-width: 992px) {
            body {
                padding-top: 0;
            }
        }

        .hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: clamp(560px, 88vh, 860px);
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15,26,24,.92), rgba(15,26,24,.55));
        }

        .hero .container-wide {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: var(--fs-label);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 3px;
            color: var(--color-accent);
            margin-bottom: 24px;
        }

        .hero-eyebrow::before {
            content: "";
            width: 36px;
            height: 1px;
            background: var(--color-accent);
        }

        .hero-title {
            font-size: var(--fs-display);
            font-weight: 800;
            line-height: 1.08;
            max-width: 14ch;
            margin-bottom: 28px;
            animation: fadeUp .6s ease-out both;
        }

        .hero-subtitle {
            font-size: clamp(16px, 2vw, 22px);
            color: rgba(255,255,255,.82);
            max-width: 46ch;
            line-height: 1.7;
            margin-bottom: 40px;
            animation: fadeUp .6s ease-out .1s both;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            animation: fadeUp .6s ease-out .2s both;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary-custom {
            background: var(--color-accent);
            color: var(--color-ink);
            border-color: var(--color-accent);
        }

        .btn-primary-custom:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0,196,120,.35);
        }

        .btn-outline-light-custom {
            background: transparent;
            color: rgba(255,255,255,.92);
            border-color: rgba(255,255,255,.5);
        }

        .btn-outline-light-custom:hover {
            background: #fff;
            color: var(--color-ink);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,.15);
            max-width: 560px;
        }

        .hero-tags span {
            font-size: 13px;
            color: rgba(255,255,255,.55);
            letter-spacing: 1px;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .scroll-indicator {
            position: absolute;
            right: 40px;
            bottom: 40px;
            width: 24px;
            height: 44px;
            border: 2px solid rgba(255,255,255,.4);
            border-radius: 20px;
            z-index: 2;
        }

        .scroll-indicator::after {
            content: "";
            position: absolute;
            left: 50%;
            top: 8px;
            transform: translateX(-50%);
            width: 3px;
            height: 8px;
            background: var(--color-accent);
            border-radius: 3px;
            animation: scrollHint 1.6s ease-in-out infinite;
        }

        @keyframes scrollHint {
            0% {
                opacity: 1;
                top: 8px;
            }
            50% {
                opacity: .3;
                top: 18px;
            }
            100% {
                opacity: 1;
                top: 8px;
            }
        }

        @media (max-width: 575px) {
            .scroll-indicator {
                display: none;
            }
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            margin-bottom: 56px;
        }

        .section-header.left-aligned {
            align-items: flex-start;
            flex-direction: column;
            gap: 12px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: var(--fs-label);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 3px;
            color: var(--color-accent);
        }

        .eyebrow::before {
            content: "";
            width: 28px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: var(--fs-h2);
            font-weight: 700;
            line-height: 1.2;
            color: var(--color-ink);
            margin-top: 8px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--color-muted);
            max-width: 56ch;
            margin-top: 12px;
        }

        .service-list {
            margin-top: 8px;
        }

        .service-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            border-top: 1px solid var(--color-line);
        }

        .service-item {
            padding: 40px 32px 48px;
            position: relative;
            border-right: 1px solid var(--color-line);
            transition: var(--transition);
            min-height: 280px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .service-item:last-child {
            border-right: none;
        }

        .service-item:hover {
            background: var(--color-card);
            box-shadow: var(--shadow-default);
        }

        .service-number {
            font-family: var(--font-number);
            font-size: 56px;
            font-weight: 800;
            color: rgba(15,26,24,.09);
            line-height: 1;
            margin-bottom: 24px;
        }

        .service-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.75;
            margin-bottom: auto;
        }

        .service-link {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent);
        }

        .service-link i {
            transition: transform .2s ease;
        }

        .service-item:hover .service-link i {
            transform: translateX(4px);
        }

        @media (max-width: 991px) {
            .service-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-item {
                border-bottom: 1px solid var(--color-line);
            }
            .service-item:nth-child(3) {
                border-right: none;
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 575px) {
            .service-row {
                grid-template-columns: 1fr;
            }
            .service-item {
                border-right: none;
            }
            .service-item:nth-child(3) {
                grid-column: auto;
            }
        }

        .stats-section {
            background: var(--color-ink);
            padding: 80px 0;
            position: relative;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0,196,120,.4), transparent);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
        }

        .stat-item {
            text-align: center;
            padding: 24px 20px;
            border-right: 1px solid rgba(255,255,255,.1);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-number {
            font-family: var(--font-number);
            font-size: clamp(36px, 6vw, 72px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            letter-spacing: 2px;
        }

        .stat-number .suffix {
            color: var(--color-accent);
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255,255,255,.55);
            margin-top: 8px;
            letter-spacing: 1px;
        }

        @media (max-width: 767px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item:nth-child(2) {
                border-right: none;
            }
            .stat-item:nth-child(-n+2) {
                border-bottom: 1px solid rgba(255,255,255,.1);
            }
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .case-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--color-card);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .case-card.wide {
            grid-column: span 7;
        }

        .case-card.narrow {
            grid-column: span 5;
        }

        .case-card.even-left {
            grid-column: span 7;
        }

        .case-card.even-right {
            grid-column: span 5;
        }

        .case-thumb {
            aspect-ratio: 4/3;
            overflow: hidden;
            position: relative;
        }

        .case-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .case-card:hover .case-thumb img {
            transform: scale(1.06);
        }

        .case-info {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent);
            margin-bottom: 8px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .case-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .case-summary {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .case-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink);
        }

        .case-more i {
            transition: transform .2s ease;
        }

        .case-card:hover .case-more i {
            transform: translateX(4px);
        }

        .case-more:hover {
            color: var(--color-accent);
        }

        @media (max-width: 991px) {
            .case-card.wide,
            .case-card.narrow,
            .case-card.even-left,
            .case-card.even-right {
                grid-column: span 12;
            }
        }

        .solution-list {
            border-top: 1px solid var(--color-line);
            margin-top: 16px;
        }

        .solution-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 28px 24px;
            border-bottom: 1px solid var(--color-line);
            transition: var(--transition);
            position: relative;
        }

        .solution-item:hover {
            background: rgba(15,26,24,.03);
            transform: translateX(6px);
        }

        .solution-index {
            font-family: var(--font-number);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-muted);
            width: 32px;
            flex-shrink: 0;
        }

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

        .solution-title {
            font-size: 20px;
            font-weight: 600;
            color: var(--color-ink);
            transition: var(--transition);
        }

        .solution-item:hover .solution-title {
            color: var(--color-accent);
        }

        .solution-desc {
            font-size: 14px;
            color: var(--color-muted);
            margin-top: 4px;
            max-width: 60ch;
        }

        .solution-tags {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
        }

        .solution-tags .badge-custom {
            background: #F0F2F0;
            color: var(--color-muted);
            font-size: 13px;
            padding: 4px 12px;
            border-radius: 999px;
            font-weight: 500;
        }

        .solution-arrow {
            color: var(--color-muted);
            font-size: 16px;
            flex-shrink: 0;
            transition: transform .2s ease, color .2s ease;
        }

        .solution-item:hover .solution-arrow {
            transform: translateX(6px);
            color: var(--color-accent);
        }

        @media (max-width: 767px) {
            .solution-item {
                flex-wrap: wrap;
                gap: 12px;
            }
            .solution-tags {
                display: none;
            }
            .solution-arrow {
                margin-left: auto;
            }
        }

        .news-section {
            background: var(--color-card);
        }

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

        .news-card {
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--color-card);
            border: 1px solid var(--color-line);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .news-thumb {
            aspect-ratio: 16/10;
            overflow: hidden;
        }

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

        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }

        .news-body {
            padding: 20px 20px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 10px;
        }

        .badge-news {
            background: rgba(0,196,120,.1);
            color: var(--color-accent-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
        }

        .news-date {
            font-size: 13px;
            color: var(--color-muted);
        }

        .news-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-title a {
            color: inherit;
        }

        .news-title a:hover {
            color: var(--color-accent);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .news-footer {
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px dashed var(--color-line);
            display: flex;
            align-items: center;
        }

        .news-readmore {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .news-readmore i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        .news-readmore:hover {
            color: var(--color-accent);
        }

        .news-readmore:hover i {
            transform: translateX(4px);
        }

        .news-empty {
            border: 2px dashed var(--color-line);
            border-radius: var(--radius-lg);
            padding: 56px 24px;
            text-align: center;
            background: var(--color-bone);
        }

        .news-empty .empty-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            border: 2px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 24px;
            color: var(--color-muted);
        }

        .news-empty .empty-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-ink);
            margin-bottom: 6px;
        }

        .news-empty .empty-desc {
            font-size: 14px;
            color: var(--color-muted);
        }

        @media (max-width: 991px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        .link-all {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding-bottom: 4px;
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .link-all:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
        }

        .faq-section {
            background: var(--color-bone);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 60px;
            align-items: start;
        }

        .faq-left {
            position: sticky;
            top: 40px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: 16px;
            box-shadow: 0 2px 8px rgba(15,26,24,.03);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0,196,120,.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            user-select: none;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 2px solid var(--color-line);
            position: relative;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--color-muted);
            border-radius: 2px;
        }

        .faq-icon::before {
            width: 12px;
            height: 2px;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
        }

        .faq-icon::after {
            width: 2px;
            height: 12px;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            transition: var(--transition);
        }

        .faq-item.open .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
            opacity: 0;
        }

        .faq-item.open .faq-icon {
            border-color: var(--color-accent);
            background: var(--color-accent);
        }

        .faq-item.open .faq-icon::before {
            background: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease-out;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.75;
            border-top: 1px solid var(--color-line);
            padding-top: 16px;
            margin-left: 24px;
            margin-right: 24px;
            padding-left: 0;
            padding-right: 0;
        }

        .faq-item.open .faq-answer {
            max-height: 600px;
        }

        .faq-item open {
            box-shadow: var(--shadow-default);
        }

        @media (max-width: 991px) {
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-left {
                position: static;
            }
        }

        .contact-section {
            background: var(--color-ink);
            color: #fff;
            padding: 96px 0;
        }

        .contact-layout {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 60px;
            align-items: stretch;
        }

        .contact-info {
            padding-right: 20px;
        }

        .contact-info .section-title {
            color: #fff;
        }

        .contact-info .section-subtitle {
            color: rgba(255,255,255,.6);
        }

        .contact-list {
            margin-top: 36px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .contact-list-item .icon-circle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            flex-shrink: 0;
        }

        .contact-list-item .label {
            font-size: 13px;
            color: rgba(255,255,255,.5);
        }

        .contact-list-item .value {
            font-size: 15px;
            color: rgba(255,255,255,.9);
            line-height: 1.5;
        }

        .qr-placeholder {
            width: 84px;
            height: 84px;
            border: 2px dashed rgba(255,255,255,.3);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: rgba(255,255,255,.4);
            margin-top: 20px;
        }

        .contact-form-wrap {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-hover);
        }

        .form-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 8px;
        }

        .form-subtitle {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 28px;
        }

        .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-body);
            margin-bottom: 8px;
        }

        .form-control-custom {
            width: 100%;
            padding: 12px 16px;
            background: var(--color-bone);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--color-body);
            transition: var(--transition);
            margin-bottom: 20px;
        }

        .form-control-custom:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0,196,120,.15);
            background: #fff;
        }

        .form-control-custom::placeholder {
            color: var(--color-muted);
            opacity: .7;
        }

        textarea.form-control-custom {
            resize: vertical;
            min-height: 120px;
        }

        .btn-submit {
            width: 100%;
            padding: 14px 24px;
            background: var(--color-accent);
            color: var(--color-ink);
            border-radius: 999px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-submit:hover {
            background: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(0,196,120,.3);
        }

        .form-success {
            display: none;
            margin-top: 16px;
            padding: 12px 16px;
            background: rgba(0,196,120,.12);
            border-radius: 10px;
            font-size: 14px;
            color: var(--color-accent-dark);
            font-weight: 500;
        }

        .form-success.show {
            display: block;
        }

        @media (max-width: 991px) {
            .contact-layout {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .contact-form-wrap {
                padding: 28px;
            }
        }

        @media (max-width: 575px) {
            .contact-section {
                padding: 64px 0;
            }
            .contact-form-wrap {
                padding: 24px 20px;
            }
        }

        .site-footer {
            background: var(--color-ink);
            color: rgba(255,255,255,.7);
            padding-top: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 4fr 2fr 3fr 3fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-text {
            margin-bottom: 16px;
        }

        .footer-brand .footer-desc {
            font-size: 14px;
            color: rgba(255,255,255,.5);
            line-height: 1.7;
            max-width: 32ch;
            margin-bottom: 20px;
        }

        .social-links {
            display: flex;
            gap: 12px;
        }

        .social-link {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255,255,255,.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: rgba(255,255,255,.7);
            transition: var(--transition);
        }

        .social-link:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-ink);
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255,255,255,.55);
            transition: var(--transition);
            display: inline-block;
            position: relative;
        }

        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-contact-list {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255,255,255,.55);
        }

        .footer-contact-list li i {
            color: var(--color-accent);
            margin-top: 4px;
            width: 16px;
        }

        .footer-bottom {
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,.1);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255,255,255,.35);
        }

        .footer-domain {
            color: rgba(255,255,255,.25);
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
        }

        @media (max-width: 575px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        .visually-hidden-important {
            position: absolute !important;
            width: 1px !important;
            height: 1px !important;
            margin: -1px !important;
            padding: 0 !important;
            overflow: hidden !important;
            clip: rect(0, 0, 0, 0) !important;
            white-space: nowrap !important;
            border: 0 !important;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root {
            --color-ink: #0F1A18;
            --color-ink-light: #172522;
            --color-accent: #00C478;
            --color-accent-dark: #00A866;
            --color-bone: #F7F5F0;
            --color-card: #FFFFFF;
            --color-body: #26302E;
            --color-muted: #8A9995;
            --color-line: #E4E8E5;
            --fs-display: clamp(44px, 7vw, 84px);
            --fs-h1: clamp(32px, 4.5vw, 52px);
            --fs-h2: clamp(26px, 3vw, 36px);
            --fs-h3: clamp(20px, 1.8vw, 24px);
            --fs-body: 16px;
            --fs-sm: 14px;
            --fs-label: 12px;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 20px rgba(15, 26, 24, .06);
            --shadow-lg: 0 16px 40px rgba(15, 26, 24, .12);
            --sidebar-width: 278px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--fs-body);
            line-height: 1.8;
            color: var(--color-body);
            background: var(--color-bone);
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--color-accent-dark);
        }

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

        .container-app {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 clamp(20px, 5vw, 64px);
            width: 100%;
        }

        /* ---------- 布局 ---------- */
        .sidebar {
            width: var(--sidebar-width);
            height: 100vh;
            position: fixed;
            top: 0;
            left: 0;
            background: var(--color-ink);
            z-index: 1040;
            border-right: 1px solid rgba(255, 255, 255, .06);
            display: flex;
            flex-direction: column;
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .sidebar-inner {
            padding: 32px 20px 24px;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 12px;
            margin-bottom: 32px;
        }

        .logo-mark {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: var(--color-accent);
            position: relative;
            flex-shrink: 0;
        }

        .logo-mark::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 12px;
            height: 12px;
            border-radius: 3px;
            background: var(--color-ink);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .sidebar-logo:hover .logo-text {
            color: var(--color-accent);
        }

        .nav-group {
            margin-bottom: 24px;
        }

        .nav-label {
            font-size: var(--fs-label);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: .12em;
            color: rgba(255, 255, 255, .38);
            padding: 0 12px;
            margin-bottom: 8px;
        }

        .nav-link-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 44px;
            padding: 0 14px;
            border-radius: 10px;
            color: rgba(255, 255, 255, .78);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: background .22s ease-out, color .22s ease-out;
        }

        .nav-link-custom i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: rgba(255, 255, 255, .5);
            transition: color .22s ease-out;
        }

        .nav-link-custom:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }

        .nav-link-custom:hover i {
            color: var(--color-accent);
        }

        .nav-link-custom.active {
            background: rgba(255, 255, 255, .06);
            color: #fff;
        }

        .nav-link-custom.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            border-radius: 0 3px 3px 0;
            background: var(--color-accent);
        }

        .nav-link-custom.active i {
            color: var(--color-accent);
        }

        .sidebar-footer {
            margin-top: auto;
            padding: 16px 12px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .sidebar-footer p {
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
            line-height: 1.6;
            margin-bottom: 4px;
        }

        .sidebar-footer span {
            font-size: 11px;
            color: rgba(255, 255, 255, .28);
        }

        /* ---------- 移动端顶部 ---------- */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--color-ink);
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-header .mobile-logo .logo-text {
            font-size: 18px;
        }

        .mobile-menu-btn {
            background: transparent;
            border: 0;
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border-radius: 8px;
            transition: background .2s ease-out;
        }

        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, .06);
        }

        .mobile-menu-btn .bar {
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: rgba(255, 255, 255, .9);
            transition: transform .25s ease-out, opacity .25s ease-out;
        }

        .mobile-menu-btn.open .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-btn.open .bar:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.open .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-cta {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent);
            border: 1px solid rgba(0, 196, 120, .5);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            transition: background .2s ease-out, color .2s ease-out;
        }

        .mobile-cta:hover {
            background: var(--color-accent);
            color: #fff;
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .55);
            z-index: 1060;
            opacity: 0;
            transition: opacity .25s ease-out;
        }

        .mobile-overlay.show {
            opacity: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: min(320px, 86vw);
            background: var(--color-ink);
            z-index: 1070;
            transform: translateX(-100%);
            transition: transform .28s ease-out;
            padding: 24px 20px;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        body.drawer-open {
            overflow: hidden;
        }

        /* ---------- Button ---------- */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border-radius: var(--radius-pill);
            border: 2px solid transparent;
            cursor: pointer;
            transition: background .22s ease-out, color .22s ease-out, transform .22s ease-out, box-shadow .22s ease-out;
            text-decoration: none;
        }

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

        .btn-custom-primary:hover {
            background: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 196, 120, .28);
        }

        .btn-custom-outline {
            background: transparent;
            color: rgba(255, 255, 255, .85);
            border-color: rgba(255, 255, 255, .45);
        }

        .btn-custom-outline:hover {
            background: #fff;
            color: var(--color-ink);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-custom-dark {
            background: var(--color-ink);
            color: #fff;
        }

        .btn-custom-dark:hover {
            background: var(--color-ink-light);
            color: var(--color-accent);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* ---------- Page Hero ---------- */
        .page-hero {
            background-image: linear-gradient(120deg, rgba(15, 26, 24, .92) 20%, rgba(15, 26, 24, .65) 75%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: clamp(56px, 8vw, 96px) 0;
            color: #fff;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 24px;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, .55);
            transition: color .2s ease-out;
        }

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

        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, .3);
        }

        .breadcrumb-custom .current {
            color: rgba(255, 255, 255, .85);
        }

        .page-hero .eyebrow {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 12px;
        }

        .page-hero h1 {
            font-size: var(--fs-h1);
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 16px;
            letter-spacing: -.01em;
            color: #fff;
        }

        .page-hero .lead {
            font-size: clamp(15px, 1.6vw, 18px);
            color: rgba(255, 255, 255, .78);
            max-width: 58ch;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ---------- 内容区 ---------- */
        .category-content {
            padding: clamp(40px, 5vw, 72px) 0;
            background: var(--color-bone);
        }

        .section-head {
            margin-bottom: 32px;
        }

        .section-eyebrow {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .1em;
            color: var(--color-accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-eyebrow::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .section-title {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--color-ink);
            line-height: 1.25;
            margin-bottom: 0;
            letter-spacing: -.01em;
        }

        /* 新闻卡片 */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .news-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease-out, transform .25s ease-out;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .news-card .news-img-wrap {
            overflow: hidden;
            border-radius: 0;
            position: relative;
            aspect-ratio: 16 / 10;
        }

        .news-card .news-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease-out;
        }

        .news-card:hover .news-img-wrap img {
            transform: scale(1.06);
        }

        .news-card .news-body {
            padding: 24px 24px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .news-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(0, 196, 120, .1);
            color: var(--color-accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            line-height: 1.5;
        }

        .news-date {
            font-size: 13px;
            color: var(--color-muted);
        }

        .news-card h3 {
            font-size: clamp(17px, 1.6vw, 20px);
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--color-ink);
        }

        .news-card h3 a {
            color: inherit;
            transition: color .2s ease-out;
        }

        .news-card h3 a:hover {
            color: var(--color-accent-dark);
        }

        .news-card .news-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s ease-out, gap .2s ease-out;
        }

        .news-card .news-link i {
            font-size: 13px;
            transition: transform .2s ease-out;
        }

        .news-card .news-link:hover {
            color: var(--color-accent-dark);
        }

        .news-card .news-link:hover i {
            transform: translateX(4px);
        }

        /* 交替布局 */
        .news-card-alternate {
            flex-direction: row;
        }

        .news-card-alternate .news-img-wrap {
            width: 42%;
            flex-shrink: 0;
            aspect-ratio: auto;
            min-height: 100%;
        }

        .news-card-alternate .news-body {
            width: 58%;
            padding: 28px 28px 24px;
        }

        .news-card-alternate.reversed .news-img-wrap {
            order: 2;
        }

        /* ---------- 侧栏 ---------- */
        .sidebar-widget {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .widget-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-ink);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-line);
            position: relative;
        }

        .widget-title::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 36px;
            height: 2px;
            background: var(--color-accent);
        }

        .popular-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .popular-list li {
            border-radius: 10px;
            transition: background .2s ease-out;
        }

        .popular-list li:hover {
            background: rgba(0, 196, 120, .05);
        }

        .popular-list a {
            display: flex;
            gap: 12px;
            padding: 10px 8px;
            align-items: flex-start;
            color: var(--color-body);
        }

        .popular-list a:hover {
            color: var(--color-accent-dark);
        }

        .popular-list .p-index {
            font-size: 18px;
            font-weight: 800;
            color: rgba(15, 26, 24, .25);
            line-height: 1.4;
            min-width: 28px;
        }

        .popular-list .p-text {
            font-size: 14px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .popular-list .p-date {
            display: block;
            font-size: 12px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-body);
            background: var(--color-bone);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-pill);
            transition: all .2s ease-out;
        }

        .tag-item:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .widget-contact {
            background: var(--color-ink);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            color: #fff;
        }

        .widget-contact h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .widget-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .widget-contact .btn-custom {
            width: 100%;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: var(--color-ink);
            padding: clamp(56px, 7vw, 88px) 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent) 40%, transparent 100%);
        }

        .cta-inner {
            max-width: 720px;
        }

        .cta-inner .eyebrow {
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .cta-inner h2 {
            font-size: var(--fs-h2);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .65);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 56ch;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--color-ink);
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: clamp(40px, 5vw, 60px) 0 0;
            color: rgba(255, 255, 255, .65);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand .sidebar-logo {
            margin-bottom: 14px;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 30ch;
        }

        .social-links {
            display: flex;
            gap: 10px;
        }

        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .65);
            font-size: 15px;
            transition: all .22s ease-out;
        }

        .social-link:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(0, 196, 120, .1);
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: .02em;
        }

        .footer-links,
        .footer-contact-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: color .2s ease-out, padding-left .2s ease-out;
        }

        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
        }

        .footer-contact-list i {
            color: var(--color-accent);
            font-size: 13px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .35);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ---------- 分页 ---------- */
        .pagination-custom {
            display: flex;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .page-link-custom {
            min-width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 14px;
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: 10px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-body);
            transition: all .2s ease-out;
        }

        .page-link-custom:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-dark);
        }

        .page-link-custom.active {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1199.98px) {
            :root {
                --sidebar-width: 248px;
            }

            .news-card-alternate .news-body {
                padding: 20px;
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .mobile-overlay {
                display: block;
            }

            .mobile-drawer {
                display: block;
            }

            .main-wrapper {
                padding-top: 64px;
            }

            .page-hero {
                padding: 48px 0 56px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .news-card-alternate {
                flex-direction: column;
            }

            .news-card-alternate .news-img-wrap {
                width: 100%;
                aspect-ratio: 16 / 10;
                min-height: auto;
            }

            .news-card-alternate .news-body {
                width: 100%;
            }

            .news-card-alternate.reversed .news-img-wrap {
                order: initial;
            }
        }

        @media (max-width: 767.98px) {
            .category-content {
                padding: 32px 0 48px;
            }

            .section-title {
                font-size: 24px;
            }

            .news-card .news-body {
                padding: 20px;
            }

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

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

            .sidebar-widget {
                padding: 22px 18px;
            }
        }

        @media (max-width: 575.98px) {
            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn-custom {
                width: 100%;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .breadcrumb-custom {
                font-size: 13px;
            }

            .news-card h3 {
                font-size: 17px;
            }
        }

/* roulang page: article */
:root {
  --color-ink: #0F1A18;
  --color-ink-light: #172522;
  --color-accent: #00C478;
  --color-accent-dark: #00A866;
  --color-bone: #F7F5F0;
  --color-card: #FFFFFF;
  --color-body: #26302E;
  --color-muted: #8A9995;
  --color-line: #E4E8E5;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 20px rgba(15,26,24,.06);
  --shadow-lg: 0 16px 40px rgba(15,26,24,.12);
  --sidebar-width: 278px;
  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bone);
  color: var(--color-body);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color .2s ease; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }
.container-app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: all .25s ease-out;
  cursor: pointer;
}
.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0,196,120,.25);
  color: #fff;
}
.btn-outline-light {
  border-color: rgba(255,255,255,.4);
  color: rgba(255,255,255,.9);
}
.btn-outline-light:hover {
  background: #fff;
  color: var(--color-ink);
  transform: translateY(-2px);
}
/* ===== 侧边栏 ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-ink);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  padding: 32px 20px;
  border-right: 1px solid rgba(255,255,255,.08);
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 32px;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--color-accent);
  position: relative;
  flex-shrink: 0;
}
.logo-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 2px solid var(--color-ink);
  border-radius: 4px;
}
.logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  line-height: 1.2;
}
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
}
.nav-group { margin-bottom: 24px; }
.nav-label {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,.4);
  padding: 0 12px 8px;
  letter-spacing: 2px;
}
.nav-link-custom {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 12px;
  margin-bottom: 4px;
  border-radius: 10px;
  color: rgba(255,255,255,.72);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: background .2s ease, color .2s ease;
}
.nav-link-custom i {
  width: 20px;
  text-align: center;
  font-size: 15px;
  color: rgba(255,255,255,.5);
  transition: color .2s;
}
.nav-link-custom:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}
.nav-link-custom:hover i { color: var(--color-accent); }
.nav-link-custom.active {
  background: rgba(255,255,255,.06);
  color: #fff;
}
.nav-link-custom.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: var(--color-accent);
}
.nav-link-custom.active i { color: var(--color-accent); }
.sidebar-footer {
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.sidebar-footer p {
  font-size: 12px;
  color: rgba(255,255,255,.4);
  line-height: 1.6;
  padding: 0 8px;
}
.copyright-text { margin-top: 6px; }
/* ===== 移动端头部 ===== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--color-ink);
  z-index: 1040;
  padding: 0 16px;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 20px rgba(15,26,24,.3);
}
.menu-toggle {
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 10px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-logo {
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}
.mobile-cta {
  padding: 6px 16px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
}
.mobile-cta:hover { background: var(--color-accent); color: #fff; }
/* ===== 抽屉 ===== */
.drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(320px, 86vw);
  height: 100vh;
  background: var(--color-ink);
  z-index: 1060;
  transform: translateX(-105%);
  transition: transform .3s ease-out;
  display: flex;
  flex-direction: column;
  padding: 32px 24px;
}
.drawer.open { transform: translateX(0); }
.drawer-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  margin-bottom: 16px;
}
.drawer-close:hover { background: rgba(255,255,255,.1); color: #fff; }
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 1055;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.drawer-overlay.show { opacity: 1; visibility: visible; }
body.no-scroll { overflow: hidden; }
/* ===== 主内容区 ===== */
.page-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.article-content { flex: 1; }
/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  padding: 32px 0 8px;
  font-size: 14px;
  color: var(--color-muted);
}
.breadcrumb-wrap a { color: var(--color-muted); }
.breadcrumb-wrap a:hover { color: var(--color-accent); }
.breadcrumb-sep { margin: 0 10px; color: #c2ccc8; }
.breadcrumb-current { color: var(--color-body); font-weight: 500; }
/* ===== 文章区块 ===== */
.article-wrap {
  max-width: 840px;
  margin: 0 auto;
}
.article-header {
  padding: 32px 0 12px;
}
.article-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-ink);
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--color-muted);
}
.article-cat {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  background: rgba(0,196,120,.12);
  color: var(--color-accent-dark);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 13px;
}
.article-cat a { color: inherit; }
.article-cat a:hover { color: var(--color-accent); }
.meta-divider { color: #d0d6d3; }
.article-source { padding-left: 2px; }
/* ===== 封面图 ===== */
.article-cover {
  margin: 24px 0 40px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-ink-light);
}
.article-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
/* ===== 正文排版 ===== */
.article-prose {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--color-body);
  max-width: 100%;
}
.article-prose p {
  margin-bottom: 1.6em;
  text-align: justify;
}
.article-prose h2 {
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 700;
  color: var(--color-ink);
  margin: 64px 0 20px;
  line-height: 1.35;
}
.article-prose h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 40px 0 16px;
}
.article-prose h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 28px 0 12px;
}
.article-prose a {
  color: var(--color-accent-dark);
  border-bottom: 1px solid rgba(0,196,120,.4);
}
.article-prose a:hover { border-bottom-color: var(--color-accent); }
.article-prose blockquote {
  border-left: 3px solid var(--color-accent);
  background: rgba(0,196,120,.06);
  padding: 20px 28px;
  margin: 28px 0;
  border-radius: 0 12px 12px 0;
  color: var(--color-body);
  font-style: italic;
}
.article-prose blockquote p { margin-bottom: 0; }
.article-prose ul, .article-prose ol {
  margin: 0 0 1.6em 1.2em;
}
.article-prose ul { list-style: disc; }
.article-prose ol { list-style: decimal; }
.article-prose li { margin-bottom: 8px; }
.article-prose img {
  border-radius: 12px;
  margin: 32px auto;
  box-shadow: var(--shadow-sm);
}
.article-prose figcaption,
.article-prose .wp-caption-text {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  margin: -20px 0 32px;
}
.article-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  font-size: 15px;
}
.article-prose table th,
.article-prose table td {
  border: 1px solid var(--color-line);
  padding: 12px 16px;
  text-align: left;
}
.article-prose table th {
  background: #f0efe9;
  font-weight: 600;
  color: var(--color-ink);
}
.article-prose hr {
  border: none;
  border-top: 1px solid var(--color-line);
  margin: 48px 0;
}
.article-prose code {
  background: rgba(15,26,24,.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: .9em;
  font-family: "SFMono-Regular", Consolas, monospace;
}
/* ===== 标签 + 分享 ===== */
.article-footer-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 48px 0 8px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}
.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-pill {
  display: inline-flex;
  padding: 6px 16px;
  background: #edf0ee;
  color: var(--color-body);
  font-size: 13px;
  border-radius: var(--radius-pill);
  transition: background .2s, color .2s;
}
.tag-pill:hover { background: var(--color-accent); color: #fff; }
.share-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}
.share-label { font-size: 14px; color: var(--color-muted); margin-right: 4px; }
.share-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 15px;
  transition: all .2s ease;
}
.share-btn:hover {
  background: var(--color-ink);
  color: var(--color-accent);
  border-color: var(--color-ink);
  transform: translateY(-2px);
}
/* ===== 空状态 ===== */
.article-empty {
  text-align: center;
  padding: 100px 20px;
  max-width: 840px;
  margin: 0 auto;
}
.article-empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(0,196,120,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 28px;
  color: var(--color-accent);
}
.article-empty h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 12px;
}
.article-empty p { color: var(--color-muted); margin-bottom: 28px; }
/* ===== 返回栏目 ===== */
.back-category {
  margin: 24px 0 8px;
}
.back-category a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s, gap .2s;
}
.back-category a i { font-size: 13px; }
.back-category a:hover { color: var(--color-accent); gap: 12px; }
/* ===== 相关推荐 ===== */
.related-section {
  margin: 56px 0 0;
  padding-top: 40px;
  border-top: 1px solid var(--color-line);
}
.related-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.related-heading h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-ink);
  position: relative;
}
.related-heading h2::after {
  content: "";
  display: block;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 3px;
  margin-top: 8px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .25s ease-out;
  display: block;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.related-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e5e9e7;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-body { padding: 16px 18px 18px; }
.related-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.5;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s;
}
.related-card:hover .related-body h3 { color: var(--color-accent-dark); }
.related-date { font-size: 13px; color: var(--color-muted); }
/* ===== CTA ===== */
.article-cta {
  margin-top: 56px;
  background: var(--color-ink);
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 56px);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
}
.article-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15,26,24,.92), rgba(15,26,24,.7));
  border-radius: var(--radius-lg);
}
.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.cta-inner h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.cta-inner p {
  color: rgba(255,255,255,.72);
  font-size: 15px;
  max-width: 480px;
}
.cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,.7);
  margin-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 56px 0 40px;
}
.footer-brand .sidebar-logo {
  padding: 0;
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  line-height: 1.7;
  margin-bottom: 20px;
}
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.18);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  font-size: 15px;
  transition: all .2s ease;
}
.social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}
.footer-heading {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.55);
  transition: color .2s, padding-left .2s;
}
.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.55);
  margin-bottom: 12px;
}
.footer-contact-list i {
  color: var(--color-accent);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: var(--color-accent); }
/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .sidebar { display: none; }
  .mobile-header { display: flex; }
  .page-main { margin-left: 0; }
  .site-footer { margin-top: 48px; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 40px 0 28px;
  }
  .article-content { padding-top: 64px; }
}
@media (max-width: 767.98px) {
  .related-grid { grid-template-columns: 1fr; }
  .related-thumb { aspect-ratio: 16 / 9; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .article-footer-bar { flex-direction: column; align-items: flex-start; }
  .breadcrumb-wrap { padding-top: 20px; }
  .article-title { font-size: 26px; }
  .article-cover { margin: 16px 0 28px; }
  .article-prose { font-size: 16px; line-height: 1.85; }
  .article-prose h2 { margin-top: 44px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .article-meta { gap: 8px; }
  .share-buttons { width: 100%; justify-content: flex-start; }
  .back-category { margin: 16px 0 0; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --color-ink: #0F1A18;
            --color-ink-light: #172522;
            --color-accent: #00C478;
            --color-accent-dark: #00A866;
            --color-bone: #F7F5F0;
            --color-card: #FFFFFF;
            --color-body: #26302E;
            --color-muted: #8A9995;
            --color-line: #E4E8E5;
            --fs-display: clamp(44px, 7vw, 84px);
            --fs-h1: clamp(32px, 4.5vw, 52px);
            --fs-h2: clamp(26px, 3vw, 36px);
            --fs-h3: clamp(20px, 1.8vw, 24px);
            --fs-body: 16px;
            --fs-sm: 14px;
            --fs-label: 12px;
            --radius-sm: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 4px 20px rgba(15,26,24,.06);
            --shadow-lg: 0 16px 40px rgba(15,26,24,.12);
            --sidebar-width: 278px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: var(--fs-body);
            line-height: 1.8;
            color: var(--color-body);
            background: var(--color-bone);
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease-out;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            margin-top: 0;
            margin-bottom: .5em;
            font-weight: 700;
            color: var(--color-ink);
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        :focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ===== 容器 ===== */
        .container-app {
            width: 100%;
            max-width: 1180px;
            margin: 0 auto;
            padding-left: clamp(20px, 5vw, 64px);
            padding-right: clamp(20px, 5vw, 64px);
        }

        /* ===== 应用外壳 ===== */
        .app-shell {
            min-height: 100vh;
        }
        .main-area {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: var(--color-bone);
            display: flex;
            flex-direction: column;
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-ink);
            z-index: 1050;
            padding: 32px 20px 24px;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, .06);
            overflow-y: auto;
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 4px 8px;
            margin-bottom: 32px;
            cursor: default;
        }
        .logo-mark {
            width: 28px;
            height: 28px;
            background: var(--color-accent);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
            transition: background .2s ease-out;
        }
        .logo-mark::before {
            content: '';
            width: 0;
            height: 0;
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-left: 9px solid var(--color-ink);
            margin-left: 2px;
        }
        .sidebar-logo:hover .logo-mark {
            background: var(--color-accent-dark);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
        }
        .nav-group {
            margin-bottom: 28px;
        }
        .nav-label {
            font-size: var(--fs-label);
            color: rgba(255, 255, 255, .4);
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 0 12px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .nav-link-custom {
            display: flex;
            align-items: center;
            gap: 14px;
            height: 44px;
            padding: 0 14px;
            border-radius: 10px;
            color: rgba(255, 255, 255, .72);
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: background .2s ease-out, color .2s ease-out;
            margin-bottom: 4px;
        }
        .nav-link-custom i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            color: rgba(255, 255, 255, .45);
            transition: color .2s ease-out;
        }
        .nav-link-custom:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }
        .nav-link-custom:hover i {
            color: var(--color-accent);
        }
        .nav-link-custom.active {
            background: rgba(255, 255, 255, .06);
            color: #fff;
        }
        .nav-link-custom.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background: var(--color-accent);
            border-radius: 0 4px 4px 0;
        }
        .nav-link-custom.active i {
            color: var(--color-accent);
        }
        .sidebar-foot {
            margin-top: auto;
            padding: 20px 12px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }
        .sidebar-foot p {
            font-size: 13px;
            color: rgba(255, 255, 255, .35);
            line-height: 1.6;
            margin-bottom: 2px;
        }

        /* ===== 移动端顶栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--color-ink);
            z-index: 1060;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, .25);
        }
        .mobile-menu-btn {
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            cursor: pointer;
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 0;
        }
        .mobile-menu-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: transform .28s ease-out, opacity .2s ease-out;
        }
        .mobile-menu-btn.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }
        .mobile-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
        }
        .mobile-cta {
            font-size: 13px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .35);
            border-radius: 999px;
            padding: 6px 16px;
            transition: all .2s ease-out;
        }
        .mobile-cta:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .5);
            z-index: 1040;
            opacity: 0;
            transition: opacity .28s ease-out;
        }
        .sidebar-overlay.show {
            opacity: 1;
        }
        body.sidebar-open {
            overflow: hidden;
        }

        /* ===== 页面小 Hero ===== */
        .page-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 80px 0 64px;
            overflow: hidden;
            background: var(--color-ink);
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .35;
            z-index: 0;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 26, 24, .95) 20%, rgba(15, 26, 24, .6) 70%, rgba(15, 26, 24, .4));
            z-index: 1;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            margin-bottom: 24px;
            letter-spacing: .5px;
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .6);
            transition: color .2s ease-out;
        }
        .breadcrumb-nav a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-nav .current {
            color: rgba(255, 255, 255, .9);
        }
        .page-hero h1 {
            font-size: var(--fs-h1);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-hero-desc {
            font-size: clamp(16px, 2vw, 20px);
            color: rgba(255, 255, 255, .82);
            max-width: 52ch;
            line-height: 1.7;
        }

        /* ===== 区块通用 ===== */
        .section-pad {
            padding: clamp(56px, 8vw, 96px) 0;
        }
        .eyebrow {
            display: inline-block;
            font-size: var(--fs-label);
            font-weight: 600;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 12px;
            position: relative;
            padding-left: 28px;
        }
        .eyebrow::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 18px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .section-title-wrap {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }
        .section-title-wrap h2 {
            font-size: var(--fs-h2);
            margin-bottom: 0;
            max-width: 18ch;
        }
        .section-sub {
            color: var(--color-muted);
            font-size: var(--fs-sm);
            max-width: 36ch;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 大图矩阵（案例） ===== */
        .case-matrix {
            background: var(--color-bone);
        }
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            position: relative;
            overflow: hidden;
            background: var(--color-ink);
            aspect-ratio: 4 / 3;
            border-radius: 4px;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .3s ease-out, transform .3s ease-out;
        }
        .case-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease-out;
            filter: brightness(.82);
        }
        .case-card:hover img {
            transform: scale(1.06);
            filter: brightness(.92);
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .case-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 56px 22px 20px;
            background: linear-gradient(to top, rgba(15, 26, 24, .94) 15%, rgba(15, 26, 24, .45) 65%, transparent);
            transform: translateY(24px);
            transition: transform .35s ease-out;
        }
        .case-card:hover .case-overlay {
            transform: translateY(0);
        }
        .case-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(0, 196, 120, .14);
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .case-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .case-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, .72);
            line-height: 1.6;
            margin-bottom: 0;
            display: none;
        }
        .case-card:hover .case-desc {
            display: block;
        }

        /* ===== 统计区 ===== */
        .stats-section {
            background: var(--color-ink);
            padding: clamp(48px, 6vw, 80px) 0;
            position: relative;
            border-top: 1px solid rgba(255, 255, 255, .06);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }
        .stats-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }
        .stats-item+.stats-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 56px;
            background: rgba(255, 255, 255, .12);
        }
        .stats-number {
            font-size: clamp(36px, 6vw, 64px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            font-family: "DIN Alternate", "Oswald", -apple-system, "PingFang SC", sans-serif;
        }
        .stats-number span {
            color: var(--color-accent);
        }
        .stats-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-top: 8px;
            letter-spacing: 1px;
        }

        /* ===== 执行流程 ===== */
        .process-section {
            background: var(--color-card);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .process-step {
            position: relative;
            padding-top: 28px;
            border-top: 1px solid var(--color-line);
            transition: border-color .3s ease-out;
        }
        .process-step:hover {
            border-top-color: var(--color-accent);
        }
        .process-num {
            font-size: 48px;
            font-weight: 800;
            color: rgba(15, 26, 24, .1);
            line-height: 1;
            margin-bottom: 18px;
            font-family: "DIN Alternate", "Oswald", sans-serif;
            transition: color .3s ease-out;
        }
        .process-step:hover .process-num {
            color: rgba(0, 196, 120, .45);
        }
        .process-title {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-bone);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 4fr 7fr;
            gap: 56px;
            align-items: start;
        }
        .faq-heading {
            position: sticky;
            top: 40px;
        }
        .faq-heading h2 {
            font-size: var(--fs-h2);
            margin-bottom: 14px;
        }
        .faq-heading p {
            color: var(--color-muted);
            font-size: var(--fs-sm);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .faq-heading .faq-cta-link {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-accent-dark);
            border-bottom: 1px solid transparent;
            transition: border-color .2s ease-out;
        }
        .faq-heading .faq-cta-link:hover {
            border-bottom-color: var(--color-accent-dark);
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow .3s ease-out, border-color .3s ease-out;
        }
        .faq-item:hover {
            border-color: rgba(0, 196, 120, .3);
            box-shadow: var(--shadow-lg);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            background: transparent;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            cursor: pointer;
            transition: color .2s ease-out;
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bone);
            border: 1px solid var(--color-line);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform .3s ease-out, background .3s ease-out, border-color .3s ease-out;
        }
        .faq-icon i {
            font-size: 12px;
            color: var(--color-muted);
            transition: color .3s ease-out;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            border-color: var(--color-accent);
        }
        .faq-item.open .faq-icon i {
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease-out;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
            border-top: 1px solid var(--color-line);
            padding-top: 16px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--color-body);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== 联系区 ===== */
        .contact-section {
            background: var(--color-ink);
            padding: clamp(56px, 8vw, 96px) 0 0;
            position: relative;
            overflow: hidden;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            padding-bottom: clamp(48px, 6vw, 72px);
        }
        .contact-info h2 {
            font-size: var(--fs-h2);
            color: #fff;
            margin-bottom: 16px;
        }
        .contact-info-desc {
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 34ch;
        }
        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-bottom: 28px;
        }
        .contact-info-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            color: rgba(255, 255, 255, .82);
            font-size: 15px;
        }
        .contact-info-list li i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .18);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--color-accent);
            flex-shrink: 0;
        }
        .qr-placeholder {
            width: 108px;
            height: 108px;
            border: 2px dashed rgba(255, 255, 255, .25);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: rgba(255, 255, 255, .4);
            text-align: center;
            line-height: 1.5;
            margin-top: 12px;
        }
        .contact-form-wrap {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: clamp(28px, 4vw, 44px);
            box-shadow: var(--shadow-lg);
        }
        .form-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .form-subtitle {
            font-size: 14px;
            color: var(--color-muted);
            margin-bottom: 28px;
        }
        .form-input {
            width: 100%;
            background: var(--color-bone);
            border: 1px solid var(--color-line);
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--color-body);
            transition: border-color .2s ease-out, box-shadow .2s ease-out, background .2s ease-out;
            margin-bottom: 16px;
        }
        .form-input::placeholder {
            color: var(--color-muted);
        }
        .form-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 196, 120, .18);
            background: #fff;
        }
        textarea.form-input {
            resize: vertical;
            min-height: 110px;
        }
        .btn-submit {
            width: 100%;
            background: var(--color-accent);
            border: none;
            border-radius: 10px;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 14px 28px;
            cursor: pointer;
            transition: background .25s ease-out, transform .25s ease-out, box-shadow .25s ease-out;
        }
        .btn-submit:hover {
            background: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 168, 102, .35);
        }
        .btn-submit:active {
            transform: translateY(0);
        }
        .form-message {
            display: none;
            margin-top: 14px;
            padding: 12px 16px;
            border-radius: 8px;
            background: rgba(0, 196, 120, .12);
            color: var(--color-accent-dark);
            font-size: 14px;
            line-height: 1.6;
            text-align: center;
        }
        .form-message.show {
            display: block;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-ink);
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 48px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, .5);
            line-height: 1.7;
            max-width: 28ch;
            margin-bottom: 20px;
        }
        .social-links {
            display: flex;
            gap: 12px;
        }
        .social-link {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .2);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .6);
            font-size: 14px;
            transition: all .25s ease-out;
        }
        .social-link:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            transition: color .2s ease-out, padding-left .2s ease-out;
        }
        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .55);
            margin-bottom: 12px;
            line-height: 1.6;
        }
        .footer-contact-list i {
            color: var(--color-accent);
            margin-top: 4px;
            font-size: 13px;
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform .28s ease-out;
                box-shadow: 4px 0 30px rgba(0, 0, 0, .3);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
                visibility: hidden;
                transition: opacity .28s ease-out, visibility .28s ease-out;
            }
            .sidebar-overlay.show {
                visibility: visible;
                opacity: 1;
            }
            .main-area {
                margin-left: 0;
                padding-top: 64px;
            }
            .mobile-header {
                display: flex;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-item:nth-child(3)::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-heading {
                position: static;
            }
        }
        @media (max-width: 767.98px) {
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .section-title-wrap {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .page-hero {
                min-height: 280px;
                padding: 64px 0 40px;
            }
        }
        @media (max-width: 520px) {
            .case-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
            --color-ink: #0F1A18;
            --color-ink-light: #172522;
            --color-accent: #00C478;
            --color-accent-dark: #00A866;
            --color-bone: #F7F5F0;
            --color-card: #FFFFFF;
            --color-body: #26302E;
            --color-muted: #8A9995;
            --color-line: #E4E8E5;
            --fs-display: clamp(44px, 7vw, 84px);
            --fs-h1: clamp(32px, 4.5vw, 52px);
            --fs-h2: clamp(26px, 3vw, 36px);
            --fs-h3: clamp(20px, 1.8vw, 24px);
            --fs-body: 16px;
            --fs-sm: 14px;
            --fs-label: 12px;
            --radius-lg: 20px;
            --radius-sm: 12px;
            --shadow-sm: 0 4px 20px rgba(15, 26, 24, .06);
            --shadow-hover: 0 16px 40px rgba(15, 26, 24, .12);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Oswald", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: var(--fs-body);
            line-height: 1.8;
            color: var(--color-body);
            background: var(--color-bone);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--color-body);
            text-decoration: none;
            transition: color .2s ease-out;
        }

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

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

        .container-app {
            width: 100%;
            max-width: 1180px;
            margin-left: auto;
            margin-right: auto;
            padding-left: clamp(20px, 4vw, 56px);
            padding-right: clamp(20px, 4vw, 56px);
        }

        .app-shell {
            min-height: 100vh;
        }

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 278px;
            background: var(--color-ink);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, .08);
        }

        .sidebar-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 32px 24px 24px;
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 4px;
            margin-bottom: 32px;
        }

        .logo-mark {
            width: 30px;
            height: 30px;
            background: var(--color-accent);
            border-radius: 8px;
            position: relative;
            flex-shrink: 0;
        }

        .logo-mark::after {
            content: '';
            position: absolute;
            inset: 7px;
            border: 2px solid var(--color-ink);
            border-radius: 3px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .nav-group {
            margin-bottom: 20px;
        }

        .nav-label {
            font-size: var(--fs-label);
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, .4);
            padding: 0 12px;
            margin-bottom: 8px;
        }

        .nav-link-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            height: 44px;
            padding: 0 14px;
            border-radius: 10px;
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
            font-weight: 500;
            transition: background .2s, color .2s;
            position: relative;
        }

        .nav-link-custom i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: rgba(255, 255, 255, .55);
            transition: color .2s;
        }

        .nav-link-custom:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
        }

        .nav-link-custom.active {
            background: rgba(255, 255, 255, .06);
            color: #fff;
        }

        .nav-link-custom.active::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 10px;
            bottom: 10px;
            width: 3px;
            border-radius: 0 3px 3px 0;
            background: var(--color-accent);
        }

        .nav-link-custom.active i {
            color: var(--color-accent);
        }

        .sidebar-footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .08);
        }

        .sidebar-footer p {
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
            margin: 0 0 4px;
            line-height: 1.5;
        }

        .sidebar-footer span {
            font-size: 12px;
            color: rgba(255, 255, 255, .3);
        }

        .main-content {
            margin-left: 278px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--color-bone);
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            z-index: 1050;
            background: var(--color-ink);
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .menu-toggle {
            width: 44px;
            height: 44px;
            background: transparent;
            border: none;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            padding: 0 12px;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            height: 2px;
            width: 20px;
            background: #fff;
            border-radius: 2px;
            transition: transform .24s ease-out, opacity .18s ease-out;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-header .logo-text {
            font-size: 18px;
        }

        .mobile-cta {
            border-radius: 999px;
            font-size: 13px;
            padding: 6px 16px;
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
            background: transparent;
            transition: all .2s;
        }

        .mobile-cta:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .5);
            z-index: 1060;
            opacity: 0;
            visibility: hidden;
            transition: opacity .25s ease-out, visibility .25s;
        }

        .drawer-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .drawer {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: min(320px, 86vw);
            background: var(--color-ink);
            z-index: 1070;
            transform: translateX(-100%);
            transition: transform .28s ease-out;
            padding: 24px 20px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
        }

        .drawer.open {
            transform: translateX(0);
        }

        .drawer .sidebar-logo {
            margin-bottom: 24px;
        }

        .drawer-close {
            position: absolute;
            top: 24px;
            right: 16px;
            width: 36px;
            height: 36px;
            border: none;
            background: rgba(255, 255, 255, .08);
            border-radius: 50%;
            color: #fff;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .drawer-close:hover {
            background: rgba(255, 255, 255, .14);
        }

        .drawer .nav-link-custom.active::before {
            left: -20px;
        }

        body.drawer-lock {
            overflow: hidden;
        }

        .category-hero {
            position: relative;
            background: linear-gradient(120deg, rgba(15, 26, 24, .92), rgba(15, 26, 24, .62)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: clamp(80px, 12vh, 130px) 0;
            display: flex;
            align-items: center;
        }

        .category-hero .container-app {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            padding: 0;
            margin: 0 0 16px;
            background: transparent;
        }

        .breadcrumb li {
            list-style: none;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
        }

        .breadcrumb li+li::before {
            content: '/';
            margin: 0 8px;
            color: rgba(255, 255, 255, .35);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .75);
            transition: color .2s;
        }

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

        .category-hero h1 {
            font-size: var(--fs-h1);
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.2;
            letter-spacing: .01em;
        }

        .category-hero .hero-desc {
            font-size: clamp(16px, 2vw, 20px);
            color: rgba(255, 255, 255, .82);
            max-width: 46ch;
            line-height: 1.7;
            margin-bottom: 28px;
        }

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

        .btn {
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 28px;
            transition: all .24s ease-out;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .btn-primary:hover {
            background: var(--color-accent-dark);
            border-color: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 196, 120, .3);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, .4);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--color-ink);
            border-color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }

        .section-pad {
            padding: clamp(56px, 8vw, 96px) 0;
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .section-eyebrow {
            font-size: var(--fs-label);
            font-weight: 700;
            letter-spacing: .14em;
            text-transform: uppercase;
            color: var(--color-accent);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .section-eyebrow::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            display: inline-block;
        }

        .section-title {
            font-size: var(--fs-h2);
            font-weight: 700;
            color: var(--color-ink);
            margin: 0;
            line-height: 1.25;
        }

        .section-sub {
            color: var(--color-muted);
            max-width: 56ch;
            font-size: var(--fs-body);
            line-height: 1.8;
        }

        .process-section {
            background: var(--color-bone);
        }

        .process-intro {
            max-width: 76ch;
            margin-bottom: 44px;
            font-size: 17px;
            line-height: 1.9;
            color: var(--color-body);
        }

        .service-step-list {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 0 36px;
            overflow: hidden;
        }

        .service-step {
            display: flex;
            align-items: center;
            gap: 28px;
            padding: 30px 16px;
            border-bottom: 1px solid var(--color-line);
            transition: background .24s ease-out, transform .24s ease-out;
            position: relative;
        }

        .service-step:last-child {
            border-bottom: none;
        }

        .service-step:hover {
            background: #f0f2ef;
            transform: translateX(8px);
        }

        .step-number {
            font-size: 54px;
            font-weight: 800;
            line-height: 1;
            color: rgba(15, 26, 24, .1);
            font-family: var(--font-num);
            min-width: 76px;
            letter-spacing: -.02em;
        }

        .step-body {
            flex: 1;
        }

        .step-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 6px;
        }

        .step-body p {
            font-size: 15px;
            color: var(--color-muted);
            margin: 0;
            line-height: 1.75;
            max-width: 58ch;
        }

        .step-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: flex-end;
            width: 140px;
        }

        .badge-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--color-bone);
            color: var(--color-body);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            line-height: 1.4;
            border: 1px solid var(--color-line);
        }

        .step-arrow {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-muted);
            font-size: 16px;
            flex-shrink: 0;
            transition: all .24s ease-out;
        }

        .service-step:hover .step-arrow {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
            transform: translateX(4px);
        }

        .modules-section {
            background: #fff;
        }

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

        .module-card {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: var(--radius-lg);
            padding: 0;
            overflow: hidden;
            transition: transform .24s ease-out, box-shadow .24s ease-out;
            display: flex;
            flex-direction: column;
        }

        .module-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .module-card .module-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform .3s ease-out;
        }

        .module-card:hover .module-img {
            transform: scale(1.04);
        }

        .module-card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .module-card-body .module-index {
            font-size: 13px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--color-accent);
            letter-spacing: .08em;
            margin-bottom: 8px;
        }

        .module-card-body h3 {
            font-size: var(--fs-h3);
            font-weight: 700;
            color: var(--color-ink);
            margin: 0 0 10px;
        }

        .module-card-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--color-muted);
            margin: 0 0 16px;
            flex: 1;
        }

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

        .module-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }

        .stats-section {
            background: var(--color-ink);
            padding: clamp(56px, 7vw, 80px) 0;
            position: relative;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: rgba(255, 255, 255, .1);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
        }

        .stat-item {
            text-align: center;
            padding: 20px 24px;
            position: relative;
        }

        .stat-item+.stat-item {
            border-left: 1px solid rgba(255, 255, 255, .12);
        }

        .stat-number {
            font-size: clamp(36px, 6vw, 72px);
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            font-family: var(--font-num);
        }

        .stat-number .stat-suffix {
            color: var(--color-accent);
            font-size: .5em;
            vertical-align: super;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-top: 8px;
        }

        .faq-section {
            background: var(--color-bone);
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 48px;
            align-items: start;
        }

        .faq-left .section-title {
            margin-bottom: 14px;
        }

        .faq-left p {
            color: var(--color-muted);
            line-height: 1.8;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-card);
            border: 1px solid var(--color-line);
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow .24s ease-out;
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 28px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-ink);
            list-style: none;
            gap: 20px;
            user-select: none;
        }

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

        .faq-item summary .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--color-line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-muted);
            flex-shrink: 0;
            transition: transform .24s ease-out, background .24s, color .24s, border-color .24s;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .faq-item .faq-answer {
            padding: 0 28px 20px;
            border-top: 1px solid var(--color-line);
            padding-top: 16px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-body);
        }

        .contact-section {
            background: var(--color-ink);
            padding: clamp(56px, 8vw, 96px) 0;
        }

        .contact-layout {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 56px;
            align-items: start;
        }

        .contact-info .section-eyebrow {
            color: var(--color-accent);
        }

        .contact-info .section-title {
            color: #fff;
            margin-bottom: 14px;
        }

        .contact-info .contact-desc {
            color: rgba(255, 255, 255, .65);
            margin-bottom: 32px;
            max-width: 42ch;
        }

        .contact-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 10px 0;
            color: rgba(255, 255, 255, .8);
            font-size: 15px;
        }

        .contact-list li i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 14px;
            flex-shrink: 0;
        }

        .qr-placeholder {
            width: 120px;
            height: 120px;
            border: 2px dashed rgba(255, 255, 255, .3);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .45);
            font-size: 13px;
            margin-top: 16px;
        }

        .contact-form-card {
            background: var(--color-card);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, .2);
        }

        .contact-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-body);
            margin-bottom: 6px;
        }

        .contact-form-card .form-control {
            background: var(--color-bone);
            border: 1px solid var(--color-line);
            border-radius: 10px;
            padding: 12px 16px;
            font-size: 15px;
            color: var(--color-body);
            transition: border-color .2s, box-shadow .2s;
        }

        .contact-form-card .form-control:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 196, 120, .15);
            background: #fff;
            outline: none;
        }

        .contact-form-card textarea {
            resize: vertical;
        }

        .form-feedback {
            margin-top: 14px;
            padding: 12px 16px;
            background: rgba(0, 196, 120, .12);
            border: 1px solid rgba(0, 196, 120, .3);
            border-radius: 10px;
            color: var(--color-accent-dark);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer {
            background: var(--color-ink);
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 48px;
        }

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

        .footer-brand .footer-desc {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            line-height: 1.8;
            max-width: 32ch;
            margin-bottom: 20px;
        }

        .social-links {
            display: flex;
            gap: 10px;
        }

        .social-link {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, .7);
            font-size: 15px;
            transition: all .2s;
        }

        .social-link:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #fff;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .08em;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            transition: color .2s;
        }

        .footer-links a:hover {
            color: var(--color-accent);
        }

        .footer-contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            margin-bottom: 12px;
        }

        .footer-contact-list i {
            color: var(--color-accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 18px 0;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        @media (max-width: 1199.98px) {
            .modules-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991.98px) {
            .sidebar {
                display: none;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                padding-top: 64px;
            }

            .category-hero {
                min-height: auto;
                padding: 60px 0 56px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .contact-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .modules-grid {
                grid-template-columns: 1fr;
            }

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

            .stat-item+.stat-item {
                border-left: none;
            }

            .stat-item:nth-child(3) {
                border-top: 1px solid rgba(255, 255, 255, .12);
                padding-top: 28px;
            }

            .stat-item:nth-child(4) {
                border-top: 1px solid rgba(255, 255, 255, .12);
                padding-top: 28px;
            }

            .service-step {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
                padding: 24px 12px;
            }

            .step-number {
                font-size: 40px;
                min-width: 0;
            }

            .step-tags {
                width: auto;
                justify-content: flex-start;
            }

            .step-arrow {
                display: none;
            }

            .service-step-list {
                padding: 0 16px;
            }

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

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

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .contact-form-card {
                padding: 24px 20px;
            }

            .section-heading {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
        }

        @media (max-width: 575.98px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stat-number {
                font-size: 32px;
            }

            .category-hero h1 {
                font-size: clamp(28px, 6vw, 36px);
            }
        }

/* roulang page: category4 */
:root{
    --color-ink:#0F1A18;
    --color-ink-light:#172522;
    --color-accent:#00C478;
    --color-accent-dark:#00A866;
    --color-bone:#F7F5F0;
    --color-card:#FFFFFF;
    --color-body:#26302E;
    --color-muted:#8A9995;
    --color-line:#E4E8E5;
    --radius-lg:20px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-1:0 4px 20px rgba(15,26,24,.06);
    --shadow-2:0 16px 40px rgba(15,26,24,.12);
    --font-sans:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    --font-display:"Oswald","DIN Alternate",var(--font-sans);
    --fs-display:clamp(44px, 7vw, 84px);
    --fs-h1:clamp(32px, 4.5vw, 52px);
    --fs-h2:clamp(26px, 3vw, 36px);
    --fs-h3:clamp(20px, 1.8vw, 24px);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    color:var(--color-body);
    background:var(--color-bone);
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
p{margin:0}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font:inherit}
.container-app{
    max-width:1180px;
    margin-inline:auto;
    padding-inline:clamp(20px,5vw,64px);
}
.section-pad{padding:clamp(56px,8vw,96px) 0}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    letter-spacing:.1em;
    font-weight:600;
    color:var(--color-accent);
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--color-accent)}
.eyebrow.light{color:var(--color-accent)}
.section-title{
    font-size:var(--fs-h2);
    font-weight:700;
    line-height:1.2;
    letter-spacing:-.02em;
    color:var(--color-ink);
    margin-top:10px;
    margin-bottom:0;
}
.section-lead{margin-top:14px;color:var(--color-muted)}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:999px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    padding:14px 28px;
    border:1px solid transparent;
    transition:background-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,color .2s ease-out;
}
.btn:focus-visible,.form-field:focus-visible,.menu-toggle:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;box-shadow:none}
.btn-brand{background:var(--color-accent);color:#0F1A18}
.btn-brand:hover{background:var(--color-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,196,120,.28)}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.65);color:#fff}
.btn-outline-light:hover{background:#fff;border-color:#fff;color:#0F1A18;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,255,255,.1)}
/* app shell sidebar */
.app-sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:278px;
    display:flex;
    flex-direction:column;
    background:var(--color-ink);
    color:#F7F5F0;
    padding:28px 20px 22px;
    z-index:1060;
    transition:transform .28s ease-out;
}
.sidebar-logo{
    display:flex;
    align-items:center;
    gap:10px;
    padding:2px 4px 0;
}
.logo-mark{
    width:30px;height:30px;
    border-radius:9px;
    background:var(--color-accent);
    display:flex;align-items:center;justify-content:center;
    color:#0F1A18;
    font-size:15px;
    flex:none;
}
.logo-text{
    font-size:20px;
    font-weight:700;
    letter-spacing:.5px;
    color:#fff;
}
.logo-mark + .logo-text:hover{color:var(--color-accent)}
.sidebar-close{
    position:absolute;
    top:18px;right:18px;
    width:34px;height:34px;
    border-radius:50%;
    border:none;
    background:rgba(255,255,255,.08);
    color:#fff;
    font-size:15px;
    display:none;
    align-items:center;
    justify-content:center;
    cursor:pointer;
}
.app-sidebar nav{
    margin-top:34px;
    flex:1;
    display:flex;
    flex-direction:column;
}
.nav-group + .nav-group{margin-top:28px}
.nav-label{
    font-size:11px;
    letter-spacing:.18em;
    text-transform:uppercase;
    color:rgba(255,255,255,.38);
    padding-left:12px;
    margin-bottom:8px;
    font-weight:600;
}
.nav-link-custom{
    position:relative;
    display:flex;
    align-items:center;
    gap:12px;
    height:44px;
    padding:0 12px;
    margin-bottom:2px;
    border-radius:10px;
    color:rgba(255,255,255,.78);
    font-size:15px;
    font-weight:500;
    transition:background-color .2s ease-out,color .2s ease-out;
}
.nav-link-custom i{width:18px;text-align:center;font-size:15px;color:rgba(255,255,255,.5)}
.nav-link-custom:hover{
    background:rgba(255,255,255,.07);
    color:#fff;
}
.nav-link-custom:hover i{color:var(--color-accent)}
.nav-link-custom.active{
    background:rgba(255,255,255,.08);
    color:#fff;
}
.nav-link-custom.active::before{
    content:"";
    position:absolute;
    left:0;top:50%;
    width:3px;height:22px;
    transform:translateY(-50%);
    background:var(--color-accent);
    border-radius:0 99px 99px 0;
}
.nav-link-custom.active i{color:var(--color-accent)}
.sidebar-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:20px 4px 4px;
}
.sidebar-bottom p{
    font-size:12px;
    color:rgba(255,255,255,.42);
    line-height:1.7;
}
.sidebar-bottom strong{display:block;color:rgba(255,255,255,.7);font-weight:600;font-size:13px;margin-bottom:6px}
.sidebar-overlay{
    position:fixed;
    inset:0;
    background:rgba(15,26,24,.6);
    z-index:1050;
    opacity:0;
    pointer-events:none;
    transition:opacity .25s ease-out;
}
/* mobile topbar */
.mobile-topbar{
    display:none;
    position:fixed;
    top:0;left:0;right:0;
    height:64px;
    background:rgba(15,26,24,.98);
    align-items:center;
    z-index:1200;
    padding-inline:20px;
    border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-topbar-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    width:100%;
}
.menu-toggle{
    width:36px;height:36px;
    border-radius:8px;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.1);
    display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:5px;
    color:#fff;
    cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.mobile-logo-link{display:inline-flex;align-items:center;gap:8px}
.mobile-logo-name{color:#fff;font-weight:700;font-size:18px;letter-spacing:.5px}
.mobile-cta-btn{
    display:inline-flex;
    align-items:center;
    height:36px;
    padding:0 16px;
    border:1px solid var(--color-accent);
    color:var(--color-accent);
    border-radius:999px;
    font-size:13px;
}
.app-main{background:var(--color-bone)}
/* page hero category */
.page-hero{
    position:relative;
    min-height:360px;
    display:flex;
    align-items:center;
    background:
        linear-gradient(115deg,rgba(15,26,24,.94) 0%,rgba(15,26,24,.72) 72%,rgba(15,26,24,.55) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    color:#fff;
}
.page-hero-inner{padding:clamp(52px,7vw,84px) 0}
.breadcrumb-nav{margin-bottom:26px}
.breadcrumb-nav .breadcrumb{margin-bottom:0}
.breadcrumb-nav .breadcrumb-item{font-size:14px;color:rgba(255,255,255,.55)}
.breadcrumb-nav .breadcrumb-item + .breadcrumb-item::before{content:"/";color:rgba(255,255,255,.32)}
.breadcrumb-nav .breadcrumb-item a{color:rgba(255,255,255,.7)}
.breadcrumb-nav .breadcrumb-item a:hover{color:var(--color-accent)}
.hero-split{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}
.hero-title{
    font-size:var(--fs-h1);
    font-weight:800;
    line-height:1.1;
    margin-top:8px;
    color:#fff;
    max-width:560px;
    letter-spacing:-0.02em;
}
.hero-sub{
    font-size:clamp(15px,1.6vw,18px);
    color:rgba(255,255,255,.82);
    max-width:60ch;
    margin-top:16px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-tag{
    display:inline-flex;
    align-items:center;
    height:28px;
    border:1px solid rgba(255,255,255,.17);
    border-radius:999px;
    padding:0 14px;
    font-size:13px;
    color:rgba(255,255,255,.85);
    background:rgba(255,255,255,.04);
}
/* FAQ document layout */
.faq-doc-block{
    padding:clamp(40px,6vw,72px) 0 clamp(70px,8vw,108px);
}
.faq-doc-intro{
    max-width:760px;
    margin-bottom:36px;
}
.faq-doc-intro p{
    font-size:15px;
    color:var(--color-muted);
}
.faq-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:clamp(28px,4vw,56px);
    align-items:start;
}
@media (min-width:992px){
    .faq-grid{
        grid-template-columns:minmax(0,1.28fr) minmax(0,2.72fr);
    }
}
/* toc */
.faq-toc-col{
    position:sticky;
    top:32px;
}
.doc-toc-card{
    background:var(--color-card);
    border:1px solid var(--color-line);
    border-radius:var(--radius-lg);
    padding:24px 22px 14px;
    box-shadow:var(--shadow-1);
}
.toc-head{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:10px;
    padding-bottom:14px;
    border-bottom:1px solid var(--color-line);
}
.toc-head strong{
    font-size:16px;
    font-weight:700;
    color:var(--color-ink);
}
.toc-head span{font-size:11px;letter-spacing:.1em;color:var(--color-muted);font-weight:600}
.doc-toc-list li{border-bottom:1px solid #f0f2f0}
.doc-toc-link{
    display:flex;
    align-items:baseline;
    gap:14px;
    padding:13px 2px;
    color:#4b5854;
    font-size:14px;
    font-weight:500;
    transition:color .2s ease-out,padding-left .2s ease-out;
}
.doc-toc-link small{
    font-size:12px;
    font-family:var(--font-display);
    color:var(--color-muted);
    font-weight:600;
}
.doc-toc-link:hover,
.doc-toc-link.active{color:var(--color-ink);padding-left:6px}
.doc-toc-link:hover small,
.doc-toc-link.active small{color:var(--color-accent)}
.toc-side-note{
    margin-top:14px;
    background:var(--color-bone);
    border-radius:14px;
    padding:16px 16px 18px;
    border:1px solid var(--color-line);
}
.toc-side-note p{font-size:14px;color:var(--color-muted)}
.toc-side-note a{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:4px;
    color:var(--color-accent-dark);
    font-size:14px;
    font-weight:600;
}
.toc-side-note a i{font-size:12px}
/* faq group */
.faq-group{
    padding-top:4px;
    margin-bottom:48px;
}
.faq-group header{
    display:flex;
    align-items:flex-start;
    gap:16px;
    margin-bottom:28px;
    padding-bottom:14px;
    border-bottom:1px solid var(--color-line);
}
.faq-group-num{
    font-family:var(--font-display);
    font-weight:800;
    font-size:clamp(30px,3vw,42px);
    line-height:1;
    color:rgba(15,26,24,.15);
    flex:none;
}
.faq-group-me{margin-top:4px}
.faq-group-me h2{
    font-size:clamp(18px,2vw,24px);
    font-weight:700;
    color:var(--color-ink);
    letter-spacing:-.01em;
}
.faq-group-me p{font-size:14px;color:var(--color-muted);margin-top:2px}
/* faq items */
.faq-card{
    background:var(--color-card);
    border:1px solid var(--color-line);
    border-radius:16px;
    box-shadow:var(--shadow-1);
    margin-bottom:12px;
    overflow:hidden;
    transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-card:hover{
    border-color:#d4dbd7;
    box-shadow:0 8px 24px rgba(15,26,24,.07);
}
.faq-card summary{
    list-style:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:22px 26px;
    cursor:pointer;
    font-size:16px;
    font-weight:600;
    color:var(--color-ink);
    line-height:1.5;
    transition:background-color .2s ease-out,color .2s ease-out;
}
.faq-card summary::-webkit-details-marker{display:none}
.faq-card summary:hover{background:rgba(0,196,120,.035)}
.faq-card summary .q-icon{
    width:32px;height:32px;
    flex:none;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:#f0f4f1;
    color:var(--color-accent-dark);
    font-size:14px;
    transition:transform .2s ease-out,background-color .2s ease-out;
}
.faq-card[open] .q-icon{transform:rotate(45deg);background:var(--color-accent);color:#0F1A18}
.faq-answer{
    border-top:1px solid #edf0ed;
    padding:0 28px;
    color:#44514d;
    font-size:15px;
}
.faq-answer-inner{
    padding:20px 0 24px;
}
.faq-answer-inner p + p{margin-top:12px}
.faq-answer-inner b{color:var(--color-ink);font-weight:600}
.faq-doc-footer-note{
    border-radius:16px;
    background:var(--color-ink);
    color:rgba(255,255,255,.7);
    padding:22px 24px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    flex-wrap:wrap;
}
.faq-doc-footer-note p{font-size:15px}
.faq-doc-footer-note p strong{display:block;color:#fff;font-size:17px;margin-bottom:4px}
.faq-doc-footer-note a{
    color:var(--color-accent);
    font-weight:600;
    font-size:15px;
    display:inline-flex;
    align-items:center;
    gap:8px;
    white-space:nowrap;
}
.faq-doc-footer-note a i{transition:transform .2s ease-out}
.faq-doc-footer-note a:hover i{transform:translateX(4px)}
/* contact CTA */
.cta-section{
    background:var(--color-ink);
    color:#F7F5F0;
    padding:clamp(56px,8vw,96px) 0;
    position:relative;
    overflow:hidden;
}
.cta-section::after{
    content:"";
    position:absolute;
    right:-120px;bottom:-120px;
    width:340px;height:340px;
    border-radius:50%;
    background:rgba(0,196,120,.06);
    pointer-events:none;
}
.cta-title{
    font-size:clamp(28px,3.4vw,40px);
    font-weight:800;
    color:#fff;
    line-height:1.18;
    margin-top:6px;
}
.cta-lead{
    color:rgba(255,255,255,.7);
    max-width:430px;
    margin-top:14px;
}
.cta-meta{
    margin-top:28px;
    display:grid;
    gap:14px;
}
.cta-meta li{
    display:flex;
    align-items:center;
    gap:14px;
    color:rgba(255,255,255,.85);
    font-size:15px;
}
.cta-meta li i{
    width:40px;height:40px;
    flex:none;
    display:flex;
    align-items:center;
    justify-content:center;
    border:1px solid rgba(255,255,255,.14);
    border-radius:12px;
    color:var(--color-accent);
    background:rgba(255,255,255,.03);
}
.cta-form-card{
    background:var(--color-card);
    border-radius:20px;
    color:var(--color-body);
    padding:clamp(24px,4vw,40px);
    box-shadow:0 24px 60px rgba(0,0,0,.22);
}
.cta-form-card label{
    display:block;
    font-size:14px;
    font-weight:600;
    color:var(--color-ink);
    margin-bottom:6px;
}
.form-field{
    width:100%;
    background:var(--color-bone);
    border:1px solid var(--color-line);
    border-radius:var(--radius-sm);
    padding:12px 14px;
    font-size:15px;
    color:var(--color-body);
    transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.form-field::placeholder{color:#afb8b4}
.form-field:focus{
    border-color:var(--color-accent);
    box-shadow:0 0 0 4px rgba(0,196,120,.13);
    background:#fff;
    outline:none;
}
textarea.form-field{min-height:112px;resize:vertical}
.form-success{
    margin-top:14px;
    padding:10px 14px;
    border-radius:10px;
    font-size:14px;
    background:rgba(0,196,120,.1);
    color:#007a4b;
    display:none;
}
/* footer */
.site-footer{
    background:var(--color-ink);
    color:rgba(255,255,255,.72);
    padding:60px 0 0;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.45fr .85fr .85fr 1.3fr;
    gap:clamp(28px,4vw,64px);
    padding-bottom:48px;
}
.footer-brand .logo-text{font-size:22px}
.footer-desc{
    font-size:14px;
    color:rgba(255,255,255,.56);
    margin:14px 0 18px;
    max-width:30ch;
}
.social-links{
    display:flex;
    gap:10px;
}
.social-link{
    width:38px;height:38px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    border:1px solid rgba(255,255,255,.18);
    color:rgba(255,255,255,.7);
    font-size:15px;
}
.social-link:hover{border-color:var(--color-accent);color:var(--color-accent);transform:translateY(-2px);transition:all .2s ease-out}
.footer-heading{
    font-size:15px;
    font-weight:700;
    color:#fff;
    margin-bottom:18px;
}
.footer-links li + li{margin-top:10px}
.footer-links a,.footer-contact-list li{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:rgba(255,255,255,.6);
    font-size:14px;
    transition:color .2s ease-out;
}
.footer-links a:hover{color:var(--color-accent)}
.footer-contact-list li + li{margin-top:12px}
.footer-contact-list i{color:var(--color-accent);width:16px;text-align:center}
.footer-qr{
    margin-top:14px;
}
.qr-placeholder{
    width:86px;height:86px;
    border-radius:12px;
    border:1px dashed rgba(255,255,255,.28);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:11px;
    color:rgba(255,255,255,.4);
}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.12);
    padding:22px 0 clamp(24px,4vw,28px);
    display:flex;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    font-size:13px;
    color:rgba(255,255,255,.46);
}
/* mobile app sidebar behavior */
@media (max-width:991.98px){
    .app-sidebar{
        transform:translateX(-105%);
        box-shadow:8px 0 40px rgba(0,0,0,.38);
        border-right:1px solid rgba(255,255,255,.08);
    }
    body.drawer-open .app-sidebar{transform:translateX(0)}
    body.drawer-open .sidebar-overlay{opacity:1;pointer-events:auto}
    .sidebar-close{display:flex}
    .mobile-topbar{display:flex}
    .app-main{margin-left:0;padding-top:64px}
    .faq-toc-col{position:static}
}
@media (min-width:992px){
    .app-main{margin-left:278px}
    .sidebar-overlay{display:none}
    .mobile-topbar{display:none}
}
@media (max-width:767px){
    .hero-title{font-size:clamp(28px,6vw,40px)}
    .page-hero{min-height:300px}
    .footer-grid{grid-template-columns:1fr 1fr}
    .faq-doc-footer-note{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;gap:30px}
    .faq-card summary{padding:20px 20px}
    .faq-answer{padding-inline:20px}
    .cta-form-card{padding:22px 18px}
    .faq-group{padding-top:2px}
    .doc-toc-card{padding:20px 16px 8px}
}