/* roulang page: index */
/* ===== Reset & Design Variables ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --color-navy: #0E2A47;
            --color-navy-light: #16436E;
            --color-navy-deep: #0B1F33;
            --color-amber: #C99B3F;
            --color-amber-light: #D9AE5B;
            --color-amber-dark: #A97E2E;
            --color-slate: #5A6B7C;
            --color-slate-light: #8A94A6;
            --color-bg: #FFFFFF;
            --color-bg-alt: #F6F8FA;
            --color-border: #E3E8EF;
            --color-success: #2E9E6B;
            --color-warning: #C0392B;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-btn: 6px;
            --radius-badge: 999px;
            --shadow-card: 0 2px 8px rgba(11, 31, 51, 0.05);
            --shadow-hover: 0 8px 24px rgba(11, 31, 51, 0.12);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --spacing-section: 96px;
            --container: 1200px;
            --transition-default: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-hover: all 0.25s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--color-navy-deep);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        a {
            color: var(--color-navy-light);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-amber);
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        ::selection {
            background: rgba(201, 155, 63, 0.2);
            color: var(--color-navy);
        }
        :focus-visible {
            outline: 2px solid var(--color-amber);
            outline-offset: 2px;
            border-radius: 2px;
        }
        @media (max-width: 767px) {
            :root {
                --spacing-section: 64px;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Utility Classes ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background-color: var(--color-bg-alt);
        }
        .section-dark {
            background-color: var(--color-navy);
            color: #fff;
        }
        .text-center {
            text-align: center;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: 0.5px;
            color: var(--color-navy);
        }
        .section-head p {
            margin-top: 12px;
            font-size: 16px;
            color: var(--color-slate);
        }
        .section-head.light h2 {
            color: #fff;
        }
        .section-head.light p {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 767px) {
            .section-head h2 {
                font-size: 22px;
            }
            .section-head p {
                font-size: 14px;
            }
        }

        /* ===== Top Info Bar ===== */
        .topbar {
            background-color: var(--color-navy-deep);
            height: 40px;
            display: flex;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .topbar-info {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .topbar-links {
            display: flex;
            gap: 24px;
            align-items: center;
        }
        .topbar-links a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
        }
        .topbar-links a:hover {
            color: var(--color-amber-light);
        }
        .topbar-btn {
            display: inline-block;
            background: var(--color-amber);
            color: #fff;
            padding: 5px 16px;
            border-radius: var(--radius-btn);
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition-hover);
        }
        .topbar-btn:hover {
            background: var(--color-amber-light);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(201, 155, 63, 0.4);
        }
        @media (max-width: 767px) {
            .topbar-info span:not(.topbar-domain) {
                display: none;
            }
            .topbar-links a:not(.topbar-btn) {
                display: none;
            }
        }

        /* ===== Main Navigation ===== */
        .main-nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 8px rgba(0, 0, 0, 0.02);
        }
        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-logo {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border: 2px solid rgba(201, 155, 63, 0.3);
        }
        .brand-logo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-navy);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-navy);
            padding: 8px 0;
            position: relative;
            transition: color 0.2s ease;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--color-amber);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--color-amber-dark);
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: scaleX(1);
        }
        .nav-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--color-amber), var(--color-amber-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), var(--shadow-card);
            transition: var(--transition-hover);
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(201, 155, 63, 0.35);
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            padding: 10px;
            cursor: pointer;
            background: none;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-navy);
            border-radius: 2px;
            transition: var(--transition-default);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-menu {
            display: none;
            background: #fff;
            padding: 16px 0;
            border-top: 1px solid var(--color-border);
        }
        .mobile-menu a {
            display: block;
            padding: 14px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-navy);
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            border-left-color: var(--color-amber);
            background: rgba(201, 155, 63, 0.06);
            color: var(--color-amber-dark);
        }
        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .mobile-menu.hidden {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .main-nav .container {
                height: 64px;
            }
            .brand-name {
                font-size: 17px;
            }
            .brand-logo {
                width: 36px;
                height: 36px;
            }
            .nav-cta {
                display: none;
            }
        }

        /* ===== Hero Section ===== */
        .hero {
            background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 60%, var(--color-navy-deep) 100%);
            position: relative;
            overflow: hidden;
            padding: 96px 0 80px;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -200px;
            left: -100px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero .container {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-content {
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(201, 155, 63, 0.2);
            border: 1px solid rgba(201, 155, 63, 0.4);
            color: var(--color-amber-light);
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--color-amber);
            border-radius: 50%;
            display: inline-block;
        }
        .hero h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            color: #fff;
        }
        .hero-subtitle {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
            margin-bottom: 32px;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--color-amber), var(--color-amber-dark));
            color: #fff;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 4px 12px rgba(0, 0, 0, 0.2);
            transition: var(--transition-hover);
            position: relative;
            overflow: hidden;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201, 155, 63, 0.4);
            color: #fff;
        }
        .btn-primary::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }
        .btn-primary:hover::after {
            left: 100%;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition-hover);
        }
        .btn-secondary:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-light);
            background: rgba(201, 155, 63, 0.08);
        }
        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }
        .trust-item::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--color-amber);
            border-radius: 2px;
            flex-shrink: 0;
            transform: rotate(45deg);
        }
        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
            background: var(--color-navy-light);
        }
        .hero-visual::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, transparent 70%, rgba(11, 31, 51, 0.6));
            z-index: 1;
        }
        .hero-card {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            padding: 16px 20px;
            z-index: 2;
        }
        .hero-card p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            line-height: 1.6;
        }
        @media (max-width: 991px) {
            .hero {
                padding: 64px 0;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .hero-visual {
                max-width: 560px;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
            }
        }
        @media (max-width: 767px) {
            .hero {
                padding: 48px 0;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 14px;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-trust {
                gap: 12px;
            }
            .trust-item {
                font-size: 13px;
            }
        }

        /* ===== Steps Section ===== */
        .steps {
            background: var(--color-bg-alt);
            position: relative;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
        }
        .step-item {
            padding: 40px 32px;
            text-align: center;
            position: relative;
            transition: var(--transition-default);
        }
        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 40px;
            right: 0;
            width: 1px;
            height: calc(100% - 80px);
            background: var(--color-border);
        }
        .step-number {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--color-navy);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            margin: 0 auto 24px;
            transition: var(--transition-default);
            font-family: 'Georgia', serif;
        }
        .step-item:hover .step-number {
            background: var(--color-amber);
            transform: scale(1.05);
            box-shadow: 0 8px 24px rgba(201, 155, 63, 0.3);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--color-navy);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--color-slate);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .step-link {
            font-size: 14px;
            color: var(--color-navy-light);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-hover);
        }
        .step-link .arrow {
            transition: transform 0.3s ease;
        }
        .step-link:hover {
            color: var(--color-amber-dark);
        }
        .step-link:hover .arrow {
            transform: translateX(4px);
        }
        @media (max-width: 991px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .step-item:not(:last-child)::after {
                display: none;
            }
            .step-item {
                padding: 24px;
                background: #fff;
                border-radius: var(--radius-lg);
                border: 1px solid var(--color-border);
            }
        }

        /* ===== Latest Info / News Section ===== */
        .latest {
            background: var(--color-bg);
        }
        .section-header-row {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
        }
        .section-header-row h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-navy);
            letter-spacing: 0.5px;
        }
        .section-header-row p {
            color: var(--color-slate);
            font-size: 15px;
            margin-top: 8px;
        }
        .view-all {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-navy-light);
            padding: 10px 20px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            transition: var(--transition-hover);
        }
        .view-all:hover {
            border-color: var(--color-amber);
            color: var(--color-amber-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: var(--transition-default);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: var(--color-amber);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-badge {
            display: inline-flex;
            align-items: center;
            background: rgba(201, 155, 63, 0.12);
            color: var(--color-amber-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            align-self: flex-start;
            margin-bottom: 14px;
        }
        .news-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-navy);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 14px;
            color: var(--color-slate);
            line-height: 1.7;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid var(--color-border);
            font-size: 13px;
            color: var(--color-slate-light);
        }
        .news-readmore {
            color: var(--color-navy-light);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }
        .news-readmore:hover {
            color: var(--color-amber-dark);
        }
        .empty-state {
            border: 2px dashed var(--color-border);
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            background: var(--color-bg-alt);
            grid-column: 1 / -1;
        }
        .empty-state .empty-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            background: rgba(201, 155, 63, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--color-amber);
        }
        .empty-state p {
            color: var(--color-slate);
            font-size: 15px;
        }
        @media (max-width: 767px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .section-header-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .section-header-row h2 {
                font-size: 22px;
            }
        }

        /* ===== Cases Section ===== */
        .cases {
            background: var(--color-navy-deep);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cases::before {
            content: '';
            position: absolute;
            bottom: -200px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.1) 0%, transparent 60%);
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-default);
        }
        .case-card:hover {
            border-color: rgba(201, 155, 63, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }
        .case-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--color-navy-light);
        }
        .case-body {
            padding: 24px;
        }
        .case-tag {
            display: inline-block;
            background: rgba(201, 155, 63, 0.15);
            color: var(--color-amber-light);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            margin-bottom: 12px;
        }
        .case-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .case-body p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .case-card .case-line {
            height: 3px;
            background: var(--color-amber);
            width: 40px;
            transition: all 0.4s ease;
            border-radius: 0 3px 3px 0;
        }
        .case-card:hover .case-line {
            width: 100%;
            background: var(--color-amber);
            border-radius: 0;
        }
        @media (max-width: 991px) {
            .cases-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== FAQ Section ===== */
        .faq {
            background: var(--color-bg-alt);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-default);
        }
        .faq-item.active {
            border-color: var(--color-amber);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-navy);
            cursor: pointer;
            transition: color 0.2s ease;
            position: relative;
        }
        .faq-question::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 3px;
            height: 100%;
            background: var(--color-amber);
            transform: scaleY(0);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-question::before {
            transform: scaleY(1);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            background: rgba(201, 155, 63, 0.12);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-icon svg {
            width: 12px;
            height: 12px;
            fill: var(--color-amber-dark);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon svg {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }
        .faq-answer p {
            padding: 0 24px 20px 24px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-slate);
        }
        @media (max-width: 767px) {
            .faq-question {
                font-size: 15px;
                padding: 16px;
            }
            .faq-answer p {
                padding: 0 16px 16px 16px;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-navy-deep), var(--color-navy-light));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 800px;
            height: 400px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
            position: relative;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 40px;
            position: relative;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--color-amber), var(--color-amber-dark));
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            padding: 16px 48px;
            border-radius: var(--radius-btn);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 8px 24px rgba(0, 0, 0, 0.3);
            transition: var(--transition-hover);
            position: relative;
            overflow: hidden;
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(201, 155, 63, 0.4);
            color: #fff;
        }
        .cta-btn::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
            transition: left 0.5s ease;
        }
        .cta-btn:hover::after {
            left: 100%;
        }
        @media (max-width: 767px) {
            .cta-section {
                padding: 64px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-section p {
                font-size: 14px;
            }
            .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 14px 24px;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--color-navy-deep);
            color: rgba(255, 255, 255, 0.7);
            padding-top: 64px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .brand-name {
            color: #fff;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 12px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 16px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--color-amber);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--color-amber-light);
        }
        .footer-contact p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-amber-light);
        }
        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 767px) {
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        /* ===== Breadcrumb (for article/category pages) ===== */
        .breadcrumb {
            background: var(--color-bg-alt);
            border-bottom: 1px solid var(--color-border);
            padding: 16px 0;
            font-size: 14px;
            color: var(--color-slate);
        }
        .breadcrumb a {
            color: var(--color-navy-light);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--color-amber-dark);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: var(--color-border);
        }
        .breadcrumb .current {
            color: var(--color-slate);
        }
        @media (max-width: 767px) {
            .breadcrumb {
                font-size: 13px;
                overflow-x: auto;
                white-space: nowrap;
            }
        }

        /* ===== Page Hero (for category pages) ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
            padding: 64px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .page-hero p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
        }
        @media (max-width: 767px) {
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
        }

        /* ===== Content Card (for category pages) ===== */
        .content-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px;
            margin-bottom: 32px;
            box-shadow: var(--shadow-card);
        }
        .content-card h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-navy);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
            position: relative;
            padding-left: 16px;
        }
        .content-card h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 4px;
            width: 4px;
            height: 24px;
            background: var(--color-amber);
            border-radius: 2px;
        }
        .content-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-slate);
            margin-bottom: 16px;
        }
        .content-card ul {
            list-style: none;
            padding: 0;
        }
        .content-card ul li {
            padding-left: 20px;
            position: relative;
            font-size: 15px;
            line-height: 1.8;
            color: var(--color-slate);
            margin-bottom: 8px;
        }
        .content-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            background: var(--color-amber);
            border-radius: 50%;
        }
        @media (max-width: 767px) {
            .content-card {
                padding: 24px;
            }
            .content-card h2 {
                font-size: 19px;
            }
        }

        /* ===== Page CTA Card (for category pages) ===== */
        .page-cta-card {
            background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
            border-radius: var(--radius-lg);
            padding: 48px;
            color: #fff;
            text-align: center;
            margin-top: 48px;
        }
        .page-cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .page-cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
        }
        @media (max-width: 767px) {
            .page-cta-card {
                padding: 32px 24px;
            }
            .page-cta-card h2 {
                font-size: 22px;
            }
        }

/* roulang page: article */
:root {
            --primary: #0E2A47;
            --primary-light: #16436E;
            --accent: #C99B3F;
            --accent-dark: #A8812F;
            --text: #1F2937;
            --text-secondary: #5A6B7C;
            --text-light: #8A94A6;
            --bg: #FFFFFF;
            --bg-light: #F6F8FA;
            --bg-dark: #0B1F33;
            --border: #E3E8EF;
            --success: #2E9E6B;
            --warning: #C0392B;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(11, 31, 51, 0.05);
            --shadow-lg: 0 8px 24px rgba(11, 31, 51, 0.12);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font); font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
        a { color: var(--primary-light); text-decoration: none; transition: color .2s ease; }
        a:hover { color: var(--accent); }
        img { max-width: 100%; display: block; border: 0; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
        button { cursor: pointer; background: none; border: none; }
        :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* ===== 顶部信息条 ===== */
        .topbar { background: var(--primary); color: rgba(255, 255, 255, 0.85); font-size: 13px; height: 36px; }
        .topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
        .topbar-left { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.9); letter-spacing: 0.3px; }
        .topbar-left i { color: var(--accent); }
        .topbar-right { display: flex; align-items: center; gap: 20px; }
        .topbar-right a { color: rgba(255, 255, 255, 0.85); transition: color .2s; }
        .topbar-right a:hover { color: var(--accent); }
        .btn-topbar { background: var(--accent); color: #fff !important; padding: 3px 16px; border-radius: 4px; font-size: 12px; font-weight: 600; transition: background .2s, transform .2s; }
        .btn-topbar:hover { background: var(--accent-dark); color: #fff !important; transform: translateY(-1px); }

        /* ===== 主导航 ===== */
        .navbar { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); box-shadow: 0 1px 12px rgba(11, 31, 51, 0.04); }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
        .brand-logo { width: 38px; height: 38px; border-radius: 10px; background: var(--bg-light); display: flex; align-items: center; justify-content: center; overflow: hidden; }
        .brand-logo img { width: 100%; height: 100%; object-fit: cover; }
        .brand-name { font-size: 20px; font-weight: 700; color: var(--primary); letter-spacing: 0.5px; white-space: nowrap; }
        .nav-links { display: flex; align-items: center; gap: 28px; }
        .nav-links a { position: relative; color: var(--text-secondary); font-size: 15px; font-weight: 500; padding: 6px 0; transition: color .2s; letter-spacing: 0.2px; }
        .nav-links a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px; background: var(--accent); border-radius: 2px; transform: scaleX(0); transform-origin: center; transition: transform .25s ease; }
        .nav-links a:hover { color: var(--primary); }
        .nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
        .nav-links a.active { color: var(--primary); font-weight: 600; }
        .nav-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: var(--primary); font-size: 22px; transition: background .2s; }
        .nav-toggle:hover { background: var(--bg-light); }

        /* ===== 面包屑 ===== */
        .breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--text-light); padding: 16px 0 0; }
        .breadcrumb a { color: var(--text-light); transition: color .2s; }
        .breadcrumb a:hover { color: var(--accent); }
        .breadcrumb i { font-size: 10px; color: var(--text-light); opacity: 0.6; }
        .breadcrumb .current { color: var(--text-secondary); max-width: 220px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

        /* ===== 文章头部 ===== */
        .article-hero { background: var(--bg-light); border-bottom: 1px solid var(--border); }
        .article-hero-inner { padding: 20px 0 36px; }
        .article-header h1 { font-size: 32px; font-weight: 700; line-height: 1.3; color: var(--primary); letter-spacing: 0.3px; margin-top: 20px; word-break: break-word; }
        .article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 18px; font-size: 13px; color: var(--text-light); }
        .article-meta i { color: var(--accent); margin-right: 6px; font-size: 13px; }
        .article-meta span { display: inline-flex; align-items: center; }

        /* ===== 正文区 ===== */
        .article-body-wrap { background: var(--bg); padding: 56px 0 64px; }
        .article-narrow { max-width: 860px; margin: 0 auto; }
        .article-content { font-size: 16px; line-height: 1.85; color: var(--text); }
        .article-content p { margin-bottom: 1.5em; }
        .article-content h2 { font-size: 24px; font-weight: 700; color: var(--primary); margin: 40px 0 16px; padding-bottom: 10px; border-bottom: 1px solid var(--border); letter-spacing: 0.3px; }
        .article-content h3 { font-size: 18px; font-weight: 600; color: var(--primary); margin: 32px 0 12px; letter-spacing: 0.2px; }
        .article-content blockquote { border-left: 4px solid var(--accent); background: var(--bg-light); padding: 16px 20px; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 24px 0; color: var(--text-secondary); font-size: 15px; }
        .article-content img { border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); margin: 24px 0; height: auto; }
        .article-content ul, .article-content ol { margin: 12px 0 24px; padding-left: 24px; }
        .article-content li { margin-bottom: 10px; }
        .article-content li::marker { color: var(--accent); }
        .article-content a { color: var(--primary-light); border-bottom: 1px solid var(--accent); padding-bottom: 1px; }
        .article-content a:hover { color: var(--accent); border-color: var(--accent); }
        .article-content code { background: var(--bg-light); border: 1px solid var(--border); border-radius: 4px; padding: 2px 8px; font-size: 14px; }
        .article-content pre { background: var(--bg-dark); color: #D7E0EA; padding: 24px; border-radius: var(--radius-lg); overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.7; }
        .article-content pre code { background: transparent; border: none; padding: 0; color: inherit; }

        /* ===== 标签 ===== */
        .article-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
        .article-tags .tags-label { font-size: 13px; color: var(--text-light); margin-right: 4px; }
        .article-tags a { font-size: 13px; color: var(--text-secondary); background: var(--bg-light); border: 1px solid var(--border); border-radius: 999px; padding: 4px 16px; transition: all .2s ease; }
        .article-tags a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

        /* ===== 空态 ===== */
        .article-empty { max-width: 560px; margin: 0 auto; text-align: center; padding: 72px 32px; background: #fff; border: 1px dashed var(--border); border-radius: var(--radius-lg); }
        .empty-icon { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 50%; background: var(--bg-light); display: flex; align-items: center; justify-content: center; font-size: 30px; color: var(--text-light); }
        .article-empty h2 { font-size: 22px; color: var(--primary); margin-bottom: 12px; }
        .article-empty p { color: var(--text-secondary); font-size: 15px; margin-bottom: 24px; }
        .btn-primary { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff !important; padding: 12px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2); transition: transform .2s ease, box-shadow .2s ease; }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201, 155, 63, 0.3); }
        .btn-primary:active { transform: translateY(0); }

        /* ===== 相关推荐 ===== */
        .related-section { background: var(--bg-light); border-top: 1px solid var(--border); padding: 64px 0 72px; }
        .related-section .section-head { margin-bottom: 32px; }
        .related-section .section-head h2 { font-size: 28px; font-weight: 700; color: var(--primary); letter-spacing: 0.3px; position: relative; padding-left: 14px; }
        .related-section .section-head h2::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 4px; height: 24px; background: var(--accent); border-radius: 4px; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
        .related-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; display: flex; flex-direction: column; }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
        .related-img { width: 100%; aspect-ratio: 16 / 9; background: var(--bg-light); overflow: hidden; position: relative; }
        .related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
        .related-card:hover .related-img img { transform: scale(1.04); }
        .related-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
        .related-body h3 { font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.5; transition: color .2s; }
        .related-card:hover .related-body h3 { color: var(--accent); }
        .related-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-light); margin-top: auto; }
        .related-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .related-meta i { font-size: 12px; }

        /* ===== 返回按钮 ===== */
        .back-btn { display: flex; justify-content: center; margin-top: 48px; }
        .btn-secondary { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--primary-light) !important; border: 2px solid var(--primary-light); padding: 10px 32px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 500; transition: all .2s ease; }
        .btn-secondary:hover { background: var(--primary); border-color: var(--primary); color: #fff !important; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(14, 42, 71, 0.2); }
        .btn-secondary:active { transform: translateY(0); }

        /* ===== 页脚 ===== */
        .footer { background: var(--bg-dark); color: #B0B8C4; padding: 64px 0 0; }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 48px; padding-bottom: 40px; }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand .brand-name { color: #fff; font-size: 18px; }
        .footer-brand p { font-size: 14px; line-height: 1.8; color: #B0B8C4; max-width: 360px; }
        .footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; letter-spacing: 0.5px; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: #B0B8C4; font-size: 14px; transition: color .2s; }
        .footer-links a:hover { color: var(--accent); }
        .footer-contact p { font-size: 14px; line-height: 1.8; color: #B0B8C4; }
        .footer-divider { height: 1px; background: rgba(255, 255, 255, 0.08); }
        .footer-bottom { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; font-size: 13px; color: #8A94A6; flex-wrap: wrap; gap: 12px; }
        .footer-bottom a { color: #8A94A6; transition: color .2s; }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .nav-links { gap: 20px; }
        }
        @media (max-width: 991px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .article-header h1 { font-size: 28px; }
        }
        @media (max-width: 767px) {
            .topbar-right a:not(.btn-topbar) { display: none; }
            .topbar-right { gap: 8px; }
            .topbar-left span { display: none; }
            .topbar-left::after { content: "82k9w.info"; }
            .nav-toggle { display: flex; }
            .nav-links { position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 24px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); display: none; gap: 0; }
            .nav-links.open { display: flex; }
            .nav-links a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--bg-light); color: var(--text); }
            .nav-links a:last-child { border-bottom: none; }
            .nav-links a::after { display: none; }
            .nav-links a.active { color: var(--accent); }
            .related-grid { grid-template-columns: 1fr; }
            .article-hero-inner { padding-bottom: 28px; }
            .article-body-wrap { padding: 40px 0 48px; }
            .footer-grid { grid-template-columns: 1fr; gap: 36px; }
            .footer-bottom { justify-content: center; text-align: center; }
            .article-meta { gap: 14px; }
            .article-meta span { font-size: 12px; }
            .article-content { font-size: 15px; }
            .article-content h2 { font-size: 22px; }
            .article-content h3 { font-size: 17px; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-header h1 { font-size: 24px; }
            .back-btn .btn-secondary { width: 100%; justify-content: center; }
            .related-body h3 { font-size: 15px; }
        }

/* roulang page: category1 */
:root {
            --primary: #0E2A47;
            --primary-light: #16436E;
            --accent: #C99B3F;
            --accent-hover: #d4a74e;
            --secondary: #5A6B7C;
            --text: #1F2D3D;
            --text-light: #5A6B7C;
            --text-muted: #8A94A6;
            --bg: #FFFFFF;
            --bg-light: #F6F8FA;
            --bg-dark: #0B1F33;
            --border: #E3E8EF;
            --success: #2E9E6B;
            --warning: #C0392B;
            --radius-lg: 12px;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(11, 31, 51, 0.05);
            --shadow-md: 0 8px 24px rgba(11, 31, 51, 0.12);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --container: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 .6em;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: .3px;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .2s ease;
            text-align: center;
            gap: 8px;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #C99B3F, #b8892f);
            color: #fff;
            box-shadow: 0 2px 12px rgba(201, 155, 63, .3), inset 0 1px 0 rgba(255, 255, 255, .2);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, #d4a74e, #c99b3f);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201, 155, 63, .4), inset 0 1px 0 rgba(255, 255, 255, .25);
        }

        .btn-secondary {
            background: transparent;
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .btn-dark {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .btn-sm {
            padding: 6px 16px;
            font-size: 13px;
            border-radius: 4px;
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Topbar ===== */
        .topbar {
            background: var(--primary);
            color: rgba(255, 255, 255, .85);
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .topbar-title {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .topbar-links {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-shrink: 0;
        }

        .topbar-links a {
            color: rgba(255, 255, 255, .8);
            font-size: 13px;
        }

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

        .topbar-links .btn {
            margin-left: 4px;
        }

        @media (max-width: 767px) {
            .topbar-title {
                max-width: 160px;
            }
            .topbar-links a:not(.btn) {
                display: none;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            position: sticky;
            top: 0;
            z-index: 999;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(11, 31, 51, .04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

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

        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            overflow: hidden;
            background: var(--bg-light);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .brand-logo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .5px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-links a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            border-radius: 4px;
            position: relative;
            transition: color .2s;
        }

        .nav-links a::after {
            content: "";
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .25s ease;
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: scaleX(1);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 6px;
        }

        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 108px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 12px 24px rgba(11, 31, 51, .1);
            padding: 16px 24px 24px;
            z-index: 998;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-links a {
            padding: 12px 16px;
            font-size: 15px;
            color: var(--text);
            border-radius: 8px;
        }

        .mobile-nav-links a:hover,
        .mobile-nav-links a.active {
            background: var(--bg-light);
            color: var(--primary);
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(11, 31, 51, .92), rgba(14, 42, 71, .88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            position: relative;
            padding: 64px 0 72px;
            color: #fff;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 20% 20%, rgba(201, 155, 63, .12), transparent 50%);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
            max-width: 960px;
            margin: 0 auto;
        }

        .breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 20px;
            letter-spacing: .3px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .6);
            transition: color .2s;
        }

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

        .breadcrumb span {
            margin: 0 8px;
        }

        .page-hero h1 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: .5px;
        }

        .page-hero p.lead {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .8);
            max-width: 680px;
            margin-bottom: 28px;
        }

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

        @media (max-width: 767px) {
            .page-hero {
                padding: 40px 0 48px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p.lead {
                font-size: 15px;
            }
        }

        /* ===== Section Base ===== */
        .section {
            padding: 96px 0;
        }

        .section-sm {
            padding: 64px 0;
        }

        .section-light {
            background: var(--bg-light);
        }

        .section-dark {
            background: var(--bg-dark);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head h2 {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-head h2 .accent {
            color: var(--accent);
        }

        .section-head .sub {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== Prepare Cards ===== */
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .mini-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            text-align: left;
        }

        .mini-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 155, 63, .5);
        }

        .mini-card .icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(201, 155, 63, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .mini-card h3 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--primary);
        }

        .mini-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .cards-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Process ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            position: relative;
        }

        .process-steps::before {
            content: "";
            position: absolute;
            top: 48px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(90deg, rgba(201, 155, 63, .4), rgba(201, 155, 63, .2));
            border-radius: 2px;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 96px;
            height: 96px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: #fff;
            border: 2px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
        }

        .process-step:hover .step-num {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(201, 155, 63, .3);
        }

        .process-step h3 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            max-width: 260px;
            margin: 0 auto;
        }

        @media (max-width: 767px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .process-steps::before {
                display: none;
            }
        }

        /* ===== Scenario ===== */
        .scenario-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .scenario-media img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .scenario-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 31, 51, .35));
            border-radius: var(--radius-lg);
        }

        .scenario-list {
            list-style: none;
            margin: 20px 0 0;
        }

        .scenario-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .scenario-list li::before {
            content: "";
            position: absolute;
            left: 4px;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--accent);
        }

        .scenario-list strong {
            color: var(--primary);
            font-weight: 600;
            display: block;
            margin-bottom: 2px;
        }

        @media (max-width: 767px) {
            .scenario-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scenario-media img {
                height: 240px;
            }
        }

        /* ===== Notice ===== */
        .notice-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .notice-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .notice-card h3 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .notice-card h3 i {
            color: var(--accent);
            font-size: 18px;
        }

        .notice-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin: 0;
        }

        @media (max-width: 767px) {
            .notice-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            padding: 20px 28px;
            position: relative;
            transition: border-color .2s, box-shadow .2s;
        }

        .faq-item.active {
            border-color: rgba(201, 155, 63, .5);
            box-shadow: var(--shadow-sm);
        }

        .faq-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--accent);
            border-radius: 4px 0 0 4px;
            opacity: 0;
            transition: opacity .25s;
        }

        .faq-item.active::before {
            opacity: 1;
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 16px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            padding: 0;
            font-family: var(--font-family);
        }

        .faq-q:hover {
            color: var(--primary);
        }

        .faq-q i {
            transition: transform .3s ease;
            color: var(--text-muted);
            font-size: 14px;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.active .faq-q i {
            transform: rotate(180deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s cubic-bezier(.4, 0, .2, 1);
        }

        .faq-a-inner {
            padding-top: 12px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0B1F33, #0E2A47 60%, #16436E);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60%;
            left: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(201, 155, 63, .12), transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 500;
            letter-spacing: .5px;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-section p {
            color: rgba(255, 255, 255, .75);
            font-size: 16px;
            margin-bottom: 36px;
            position: relative;
        }

        .cta-section .btn {
            position: relative;
            overflow: hidden;
        }

        .cta-section .btn::after {
            content: "";
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .25), transparent);
            transition: left .5s ease;
        }

        .cta-section .btn:hover::after {
            left: 100%;
        }

        @media (max-width: 767px) {
            .cta-section h2 {
                font-size: 24px;
            }
        }

        /* ===== Related Cards ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all .25s ease;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201, 155, 63, .5);
        }

        .related-card .related-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(201, 155, 63, .12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
        }

        .related-card h3 {
            font-size: 18px;
            color: var(--primary);
            margin: 0;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin: 0;
            flex: 1;
        }

        .related-card .btn {
            align-self: flex-start;
            margin-top: 8px;
        }

        @media (max-width: 767px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #0B1F33;
            color: #B0B8C4;
            padding: 64px 0 24px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            margin: 16px 0 0;
            line-height: 1.7;
            max-width: 320px;
        }

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

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #B0B8C4;
            transition: color .2s;
        }

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

        .footer-contact p {
            margin: 0;
            line-height: 1.7;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin: 32px 0 20px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }

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

        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding: 56px 0;
            }
            .container {
                padding: 0 16px;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 22px;
            }
        }

/* roulang page: category3 */
:root{
  --c-primary:#0E2A47;
  --c-primary-light:#16436E;
  --c-deep:#0B1F33;
  --c-accent:#C99B3F;
  --c-accent-dark:#b8872e;
  --c-slate:#5A6B7C;
  --c-muted:#8A94A6;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F6F8FA;
  --c-border:#E3E8EF;
  --c-link:#16436E;
  --c-white:#fff;
  --radius-lg:12px;
  --radius-md:6px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(11,31,51,.05);
  --shadow-md:0 8px 24px rgba(11,31,51,.12);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --container:1200px;
  --space:96px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font);font-size:16px;line-height:1.75;color:#1f2a36;background:var(--c-bg);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--c-link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:var(--font);cursor:pointer;}
ul{list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* topbar */
.topbar{background:var(--c-deep);color:#A9B4C0;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;width:100%;}
.topbar-site{letter-spacing:.3px;}
.topbar-right{display:flex;align-items:center;gap:22px;}
.topbar-right a{color:#B0B8C4;font-size:13px;}
.topbar-right a:hover{color:var(--c-accent);}
.topbar-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--c-accent);color:#fff !important;border-radius:4px;padding:3px 14px;font-size:13px;line-height:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.2);transition:background .2s,transform .2s;}
.topbar-btn:hover{background:var(--c-accent-dark);transform:translateY(-1px);}

/* header */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-logo{width:38px;height:38px;border-radius:10px;overflow:hidden;border:1px solid var(--c-border);flex-shrink:0;}
.brand-logo img{width:100%;height:100%;object-fit:cover;}
.brand-name{font-size:19px;font-weight:700;color:var(--c-primary);letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{position:relative;font-size:15px;color:var(--c-primary);padding:6px 0;font-weight:500;}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left center;transition:transform .25s ease;}
.nav-links a:hover{color:var(--c-accent);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);font-weight:600;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;background:#fff;border:1px solid var(--c-border);border-radius:6px;align-items:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .3s ease,opacity .3s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* breadcrumb */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--c-border);padding:12px 0;font-size:13px;color:var(--c-muted);}
.breadcrumb-bar a{color:var(--c-slate);}
.breadcrumb-bar a:hover{color:var(--c-accent);}
.breadcrumb-bar .sep{margin:0 8px;color:#c3cbd6;}

/* hero */
.page-hero{position:relative;background:linear-gradient(135deg,var(--c-deep) 0%,var(--c-primary-light) 100%);padding:92px 0;color:#fff;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:44px 44px;}
.page-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 18% 8%,rgba(201,155,63,.18),transparent 55%);}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.hero-badge{display:inline-flex;align-items:center;background:rgba(201,155,63,.15);border:1px solid rgba(201,155,63,.45);color:#e7c884;font-size:13px;padding:4px 14px;border-radius:999px;margin-bottom:20px;letter-spacing:.5px;}
.page-hero h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:.3px;margin-bottom:18px;}
.hero-sub{font-size:16px;line-height:1.8;color:#B8C2CE;max-width:760px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:38px;}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#d6a94b,var(--c-accent));color:#fff;font-weight:600;font-size:15px;padding:13px 30px;border-radius:6px;border:none;box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 8px 20px rgba(201,155,63,.28);transition:transform .2s ease,box-shadow .2s ease,background .2s ease;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 12px 28px rgba(201,155,63,.38);color:#fff;background:linear-gradient(135deg,#dfb55a,var(--c-accent));}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;background:transparent;border:2px solid rgba(255,255,255,.4);color:#fff;font-weight:500;font-size:15px;padding:11px 28px;border-radius:6px;transition:border-color .2s,color .2s,transform .2s;}
.btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent);transform:translateY(-2px);}
.hero-points{display:flex;flex-wrap:wrap;gap:28px;padding:0;}
.hero-points li{position:relative;font-size:14px;color:#CDD6E0;padding-left:16px;}
.hero-points li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;background:var(--c-accent);border-radius:2px;}

/* sections */
.section{padding:var(--space) 0;}
.section-alt{background:var(--c-bg-soft);}
.section-head{margin-bottom:48px;max-width:780px;}
.section-tag{display:inline-flex;align-items:center;background:rgba(201,155,63,.12);color:var(--c-accent-dark);font-size:13px;font-weight:600;padding:4px 14px;border-radius:999px;margin-bottom:14px;letter-spacing:.4px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--c-primary);letter-spacing:.3px;margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--c-slate);line-height:1.75;}

/* advantages */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.adv-card{background:#fff;border:1px solid var(--c-border);border-radius:12px;padding:30px 26px;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(201,155,63,.4);}
.adv-icon{width:52px;height:52px;border-radius:12px;background:rgba(201,155,63,.1);color:var(--c-accent);display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:background .3s,color .3s;}
.adv-icon svg{width:26px;height:26px;}
.adv-card:hover .adv-icon{background:var(--c-accent);color:#fff;}
.adv-card h3{font-size:17px;font-weight:600;color:var(--c-primary);margin-bottom:8px;letter-spacing:.2px;}
.adv-card p{font-size:14px;color:var(--c-slate);line-height:1.75;}

/* scenarios */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scenario-card{background:#fff;border:1px solid var(--c-border);border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;display:block;}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(201,155,63,.45);}
.scenario-media{aspect-ratio:16/9;overflow:hidden;background:#eef1f5;}
.scenario-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.scenario-card:hover .scenario-media img{transform:scale(1.05);}
.scenario-body{padding:24px;}
.scenario-body h3{font-size:17px;font-weight:600;color:var(--c-primary);margin-bottom:8px;letter-spacing:.2px;}
.scenario-body>p{font-size:14px;color:var(--c-slate);line-height:1.75;margin-bottom:14px;}
.scenario-list li{position:relative;font-size:13px;color:var(--c-muted);padding-left:16px;margin-bottom:6px;}
.scenario-list li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;background:var(--c-accent);border-radius:2px;}

/* process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.process-card{position:relative;background:#fff;border:1px solid var(--c-border);border-radius:12px;padding:32px 26px 28px;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;}
.process-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(201,155,63,.4);}
.process-num{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:rgba(201,155,63,.12);color:var(--c-accent-dark);font-size:15px;font-weight:700;margin-bottom:18px;transition:background .3s,color .3s;}
.process-card:hover .process-num{background:var(--c-accent);color:#fff;}
.process-card h3{font-size:16px;font-weight:600;color:var(--c-primary);margin-bottom:8px;letter-spacing:.2px;}
.process-card p{font-size:14px;color:var(--c-slate);line-height:1.75;}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{position:relative;background:#fff;border:1px solid var(--c-border);border-radius:12px;padding:22px 26px;margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;background:var(--c-accent);opacity:0;transition:opacity .3s ease;}
.faq-item.active{border-color:rgba(201,155,63,.45);box-shadow:var(--shadow-sm);}
.faq-item.active::before{opacity:1;}
.faq-question{display:flex;align-items:center;justify-content:space-between;font-size:16px;font-weight:500;color:#243447;cursor:pointer;letter-spacing:.2px;}
.faq-item.active .faq-question{color:var(--c-primary);}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;margin-left:16px;transition:transform .3s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-muted);transition:background .3s;}
.faq-icon::before{width:2px;height:100%;left:50%;top:0;margin-left:-1px;}
.faq-icon::after{height:2px;width:100%;left:0;top:50%;margin-top:-1px;}
.faq-item.active .faq-icon{transform:rotate(45deg);}
.faq-item.active .faq-icon::before,.faq-item.active .faq-icon::after{background:var(--c-accent);}
.faq-answer{max-height:0;overflow:hidden;padding-top:0;transition:max-height .3s cubic-bezier(.4,0,.2,1),padding .3s ease;color:var(--c-slate);font-size:14px;line-height:1.8;}
.faq-item.active .faq-answer{max-height:320px;padding-top:12px;}

/* CTA */
.cta-band{background:linear-gradient(135deg,var(--c-deep),var(--c-primary-light) 60%,var(--c-primary));padding:80px 0;text-align:center;position:relative;overflow:hidden;color:#fff;}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 100%,rgba(201,155,63,.18),transparent 60%);}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.cta-inner h2{font-size:30px;font-weight:700;letter-spacing:.4px;margin-bottom:14px;}
.cta-inner p{font-size:16px;color:#B8C2CE;line-height:1.8;margin-bottom:34px;}
.cta-btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#d6a94b,var(--c-accent));color:#fff;font-size:16px;font-weight:600;padding:15px 44px;border-radius:6px;box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 26px rgba(201,155,63,.35);transition:transform .2s ease,box-shadow .2s ease;}
.cta-btn:hover{transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.32),0 14px 34px rgba(201,155,63,.45);color:#fff;}
.cta-btn::after{content:"";position:absolute;top:0;left:-120%;width:55%;height:100%;background:linear-gradient(120deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);transition:left .55s ease;}
.cta-btn:hover::after{left:160%;}

/* relate */
.relate-sec{background:#fff;}
.relate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.relate-card{display:block;background:var(--c-bg-soft);border:1px solid var(--c-border);border-radius:12px;padding:28px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,background .3s ease;}
.relate-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(201,155,63,.45);background:#fff;}
.relate-name{display:block;font-size:17px;font-weight:600;color:var(--c-primary);margin-bottom:8px;letter-spacing:.2px;}
.relate-card p{font-size:14px;color:var(--c-slate);line-height:1.75;margin-bottom:16px;}
.relate-link{display:inline-flex;align-items:center;font-size:14px;font-weight:600;color:var(--c-accent-dark);transition:gap .2s ease;gap:4px;}
.relate-card:hover .relate-link{gap:8px;}

/* footer */
.footer{background:var(--c-deep);color:#A9B4C0;padding:64px 0 0;font-size:14px;line-height:1.8;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;padding-bottom:40px;}
.footer-brand p{margin-top:14px;color:#A9B4C0;font-size:14px;max-width:340px;}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;letter-spacing:.3px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#B0B8C4;font-size:14px;transition:color .2s ease;}
.footer-links a:hover{color:var(--c-accent);}
.footer-contact p{color:#A9B4C0;font-size:14px;max-width:320px;}
.footer-divider{border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:20px 0;color:#8A94A6;font-size:13px;}
.footer-bottom a{color:#8A94A6;font-size:13px;}
.footer-bottom a:hover{color:var(--c-accent);}

/* responsive */
@media (max-width:1199px){
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .process-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  :root{--space:64px;}
  .topbar-right a{display:none;}
  .topbar-right .topbar-btn{display:inline-flex;}
  .header-inner{height:64px;}
  .nav-toggle{display:flex;}
  .nav-links{position:absolute;top:100%;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--c-border);box-shadow:0 14px 30px rgba(11,31,51,.1);display:none;flex-direction:column;gap:0;padding:10px 24px 14px;}
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 0;font-size:15px;border-bottom:1px solid #f0f2f5;width:100%;}
  .nav-links a:last-child{border-bottom:none;}
  .page-hero{padding:64px 0;}
  .page-hero h1{font-size:32px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:flex-start;}
  .hero-points{flex-direction:column;gap:12px;}
  .adv-grid,.scenario-grid,.process-grid,.relate-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:24px;}
  .cta-inner h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root {
            --primary: #0E2A47;
            --primary-light: #16436E;
            --primary-deep: #0B1F33;
            --accent: #C99B3F;
            --accent-light: #D9B36A;
            --accent-dark: #A8842F;
            --gray: #5A6B7C;
            --gray-light: #8A94A6;
            --bg-gray: #F6F8FA;
            --bg-white: #FFFFFF;
            --border: #E3E8EF;
            --success: #2E9E6B;
            --warning: #C0392B;
            --radius-lg: 12px;
            --radius-md: 6px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(11, 31, 51, 0.05);
            --shadow-md: 0 8px 24px rgba(11, 31, 51, 0.12);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --container: 1200px;
            --space-section: 96px;
            --space-section-mobile: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: #1E2A36;
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: var(--primary-deep);
            color: rgba(255, 255, 255, 0.75);
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .topbar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .topbar-brand {
            font-weight: 600;
            letter-spacing: 0.3px;
            color: #fff;
            font-size: 13px;
        }

        .topbar-links {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .topbar-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: color 0.2s;
        }

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

        .topbar-btn {
            background: var(--accent);
            color: #fff !important;
            padding: 4px 16px;
            border-radius: 4px;
            font-weight: 600;
            margin-left: 4px;
            transition: background 0.2s, transform 0.2s;
        }

        .topbar-btn:hover {
            background: #B7863A;
            transform: translateY(-1px);
        }

        /* ===== 主导航 ===== */
        .header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(11, 31, 51, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            overflow: hidden;
            background: #f0f2f5;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .brand-logo img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }

        .nav-links a {
            color: #2A3542;
            font-size: 15px;
            padding: 8px 14px;
            border-radius: 6px;
            position: relative;
            transition: color 0.2s;
        }

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

        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            border-radius: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: all 0.3s;
        }

        .nav-toggle:hover span {
            background: var(--accent);
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: var(--bg-gray);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            font-size: 13px;
            color: var(--gray);
        }

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

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

        .breadcrumb-bar .sep {
            margin: 0 8px;
            color: var(--gray-light);
        }

        .breadcrumb-bar .current {
            color: var(--gray);
        }

        /* ===== Hero 区域 ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(11, 31, 51, 0.88), rgba(14, 42, 71, 0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            background-color: var(--primary-deep);
            padding: 88px 0 96px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            left: -80px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.18) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero-content {
            max-width: 760px;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(201, 155, 63, 0.15);
            color: var(--accent-light);
            border-radius: var(--radius-full);
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            border: 1px solid rgba(201, 155, 63, 0.3);
            letter-spacing: 0.3px;
        }

        .page-hero h1 {
            color: #fff;
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .page-hero .hero-desc {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 680px;
        }

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

        /* ===== 按钮体系 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            border: none;
            line-height: 1.4;
            letter-spacing: 0.2px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #B7863A);
            color: #fff;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 155, 63, 0.35);
            background: linear-gradient(135deg, #D9B36A, #C99B3F);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(201, 155, 63, 0.3);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
        }

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

        /* ===== 通用区块 ===== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-white {
            background: var(--bg-white);
        }

        .section-gray {
            background: var(--bg-gray);
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-head p {
            color: var(--gray);
            font-size: 16px;
            line-height: 1.7;
        }

        /* ===== 核心安全能力 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(201, 155, 63, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin: 0 auto 20px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--gray);
            line-height: 1.75;
        }

        /* ===== 适用场景 ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all 0.3s ease;
        }

        .scene-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .scene-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }

        .scene-item h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .scene-item p {
            font-size: 14px;
            color: var(--gray);
            line-height: 1.75;
        }

        /* ===== 图文分栏 ===== */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .split-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }

        .split-media::after {
            content: '';
            position: absolute;
            top: 20px;
            left: -1px;
            width: 1px;
            height: 80px;
            background: var(--accent);
        }

        .split-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            display: block;
        }

        .split-content h2 {
            font-size: 28px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .split-content>p {
            color: var(--gray);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .dot-list {
            list-style: none;
            margin-bottom: 32px;
        }

        .dot-list li {
            position: relative;
            padding-left: 22px;
            margin-bottom: 14px;
            font-size: 15px;
            color: #2A3542;
            line-height: 1.7;
        }

        .dot-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 2px;
            background: var(--accent);
        }

        .dot-list li strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 企业安全建议 ===== */
        .suggest-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .suggest-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all 0.3s ease;
        }

        .suggest-item:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        .suggest-num {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(201, 155, 63, 0.1);
            padding: 4px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .suggest-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.2px;
        }

        .suggest-item p {
            font-size: 14px;
            color: var(--gray);
            line-height: 1.75;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 500;
            color: var(--primary);
            text-align: left;
            letter-spacing: 0.2px;
            transition: color 0.2s;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-arrow {
            width: 22px;
            height: 22px;
            position: relative;
            flex-shrink: 0;
            transition: transform 0.3s;
        }

        .faq-arrow::before,
        .faq-arrow::after {
            content: '';
            position: absolute;
            top: 50%;
            width: 11px;
            height: 2px;
            background: var(--gray);
            border-radius: 2px;
            transition: background 0.3s;
        }

        .faq-arrow::before {
            left: 0;
            transform: rotate(45deg);
        }

        .faq-arrow::after {
            right: 0;
            transform: rotate(-45deg);
        }

        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-item.active .faq-arrow::before {
            background: var(--accent);
            transform: rotate(-45deg);
        }

        .faq-item.active .faq-arrow::after {
            background: var(--accent);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-answer p {
            padding: 0 24px 20px 28px;
            color: var(--gray);
            font-size: 15px;
            line-height: 1.75;
            position: relative;
        }

        .faq-answer p::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 20px;
            width: 4px;
            background: var(--accent);
            border-radius: 2px;
        }

        /* ===== 相关跳转卡片 ===== */
        .rel-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .rel-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .rel-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .rel-tag {
            display: inline-block;
            background: rgba(201, 155, 63, 0.1);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            margin-bottom: 18px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }

        .rel-card h3 {
            font-size: 18px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.2px;
        }

        .rel-card p {
            color: var(--gray);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .rel-card a {
            color: var(--primary-light);
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s;
        }

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

        .rel-card a span {
            transition: transform 0.2s;
            display: inline-block;
        }

        .rel-card a:hover span {
            transform: translateX(4px);
        }

        /* ===== CTA 横幅 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 340px;
            height: 340px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(201, 155, 63, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            margin-bottom: 36px;
            letter-spacing: 0.2px;
        }

        .btn-cta {
            background: linear-gradient(135deg, var(--accent), #B7863A);
            color: #fff;
            padding: 14px 44px;
            font-size: 16px;
            position: relative;
            overflow: hidden;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 4px 16px rgba(0, 0, 0, 0.2);
            border-radius: var(--radius-md);
            border: none;
            font-weight: 600;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            transition: all 0.25s ease;
            letter-spacing: 0.3px;
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(201, 155, 63, 0.4);
            background: linear-gradient(135deg, #D9B36A, #C99B3F);
        }

        .btn-cta::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s ease;
        }

        .btn-cta:hover::after {
            left: 100%;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary-deep);
            color: #B0B8C4;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand p {
            margin-top: 16px;
            color: #8A94A6;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #B0B8C4;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .footer-contact p {
            color: #8A94A6;
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-divider {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            color: #6B7A8A;
            font-size: 13px;
        }

        .footer-bottom a {
            color: #6B7A8A;
            font-size: 13px;
            transition: color 0.2s;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .rel-card:last-child {
                grid-column: 1 / -1;
            }

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

            .split-block {
                gap: 40px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: var(--space-section-mobile) 0;
            }

            .topbar-links a:not(.topbar-btn) {
                display: none;
            }

            .topbar-links {
                gap: 0;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                box-shadow: 0 16px 32px rgba(11, 31, 51, 0.12);
                border-bottom: 1px solid var(--border);
                align-items: stretch;
                gap: 4px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 14px 10px;
                border-radius: 8px;
                font-size: 15px;
            }

            .nav-links a.active::after {
                content: '';
                position: absolute;
                left: 10px;
                right: auto;
                bottom: 4px;
                width: 28px;
                height: 2px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-toggle.open span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }

            .nav-toggle.open span:nth-child(2) {
                opacity: 0;
            }

            .nav-toggle.open span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }

            .page-hero {
                padding: 56px 0 64px;
            }

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

            .page-hero .hero-desc {
                font-size: 15px;
                line-height: 1.75;
            }

            .hero-actions {
                flex-direction: column;
                gap: 12px;
                align-items: stretch;
            }

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

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .split-media img {
                height: 220px;
            }

            .split-content h2 {
                font-size: 24px;
            }

            .suggest-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .rel-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .rel-card:last-child {
                grid-column: auto;
            }

            .section-head {
                margin-bottom: 40px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .faq-question {
                font-size: 15px;
                padding: 18px 20px;
            }

            .faq-answer p {
                padding: 0 20px 18px 24px;
                font-size: 14px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
                padding-bottom: 36px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }

            .footer {
                padding: 48px 0 0;
            }
        }

        @media (min-width: 768px) and (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .scene-item:last-child {
                grid-column: 1 / -1;
            }

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