/* roulang page: index */
:root {
            --primary: #1E1E1E;
            --gold: #C9A32C;
            --gold-light: #D4AF37;
            --gold-dark: #B8942A;
            --bg-light: #F5F5F5;
            --white: #FFFFFF;
            --text-dark: #333333;
            --text-muted: #777777;
            --border: #E0E0E0;
            --radius: 6px;
            --radius-lg: 10px;
            --shadow: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-hover: 0 8px 24px rgba(0,0,0,0.10);
            --transition: all 0.3s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-stack);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--gold); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--gold-dark); }

        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 60px 0; } }

        /* === Navbar === */
        .navbar-custom {
            background: transparent;
            transition: var(--transition);
            padding: 12px 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
        }
        .navbar-custom.scrolled {
            background: var(--white);
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }
        .navbar-custom .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 0.5px;
        }
        .navbar-custom .navbar-brand:hover { color: var(--gold-dark); }
        .navbar-custom .nav-link {
            color: var(--white);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius);
            transition: var(--transition);
            position: relative;
        }
        .navbar-custom.scrolled .nav-link { color: var(--text-dark); }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold);
        }
        .navbar-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: var(--transition);
            transform: translateX(-50%);
        }
        .navbar-custom .nav-link:hover::after,
        .navbar-custom .nav-link.active::after { width: 60%; }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold-light), var(--gold));
            color: var(--white);
            border: none;
            border-radius: var(--radius-lg);
            padding: 12px 32px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(201, 163, 44, 0.3);
        }
        .btn-gold:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(201, 163, 44, 0.4);
            color: var(--white);
        }
        .btn-gold:active { transform: scale(0.98); }

        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold);
            border-radius: var(--radius-lg);
            padding: 10px 28px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-outline-gold:hover {
            background: rgba(201, 163, 44, 0.1);
            color: var(--gold-dark);
            border-color: var(--gold-dark);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            color: var(--white);
            font-size: 1.5rem;
            padding: 4px 8px;
        }
        .navbar-custom.scrolled .navbar-toggler { color: var(--text-dark); }
        .navbar-toggler:focus { box-shadow: none; }

        /* === Hero === */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0,0,0,0.55);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: var(--white);
            max-width: 860px;
            padding: 20px;
            animation: heroFadeIn 0.6s ease-out;
        }
        @keyframes heroFadeIn {
            0% { opacity: 0; transform: translateY(20px); }
            100% { opacity: 1; transform: translateY(0); }
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 700;
            line-height: 1.3;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
            margin-bottom: 20px;
            color: var(--white);
        }
        .hero-content h1 .highlight { color: var(--gold); }
        .hero-content .lead {
            font-size: 1.3rem;
            opacity: 0.9;
            margin-bottom: 36px;
            font-weight: 400;
        }
        .hero-content .btn-gold {
            padding: 16px 52px;
            font-size: 1.2rem;
            border-radius: var(--radius-lg);
        }
        @media (max-width: 768px) {
            .hero-content h1 { font-size: 2.2rem; }
            .hero-content .lead { font-size: 1.05rem; }
            .hero-content .btn-gold { width: 100%; padding: 14px 32px; }
            .hero-section { min-height: 80vh; }
        }

        /* === Section Titles === */
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--gold), var(--gold-light));
            border-radius: 2px;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-top: 12px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-title h2 { font-size: 1.8rem; }
        }

        /* === Story Section === */
        .story-section {
            background: var(--white);
        }
        .story-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            width: 100%;
        }
        .story-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .story-content p {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #555;
        }
        .story-content .btn-gold { margin-top: 12px; }
        @media (max-width: 768px) {
            .story-image { margin-bottom: 24px; min-height: 220px; }
        }

        /* === Featured Cards === */
        .featured-section {
            background: var(--bg-light);
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold);
        }
        .feature-card .icon {
            font-size: 2.4rem;
            color: var(--gold);
            margin-bottom: 16px;
        }
        .feature-card h4 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex: 1;
            margin-bottom: 16px;
        }
        .feature-card .card-link {
            color: var(--gold);
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feature-card .card-link i { transition: var(--transition); }
        .feature-card .card-link:hover i { transform: translateX(4px); }

        .feature-card.featured-wide {
            background: linear-gradient(135deg, var(--primary), #2a2a2a);
            border-color: var(--primary);
        }
        .feature-card.featured-wide .icon { color: var(--gold-light); }
        .feature-card.featured-wide h4 { color: var(--white); }
        .feature-card.featured-wide p { color: rgba(255,255,255,0.8); }
        .feature-card.featured-wide .card-link { color: var(--gold-light); }

        @media (max-width: 768px) {
            .feature-card { padding: 24px 18px; }
        }

        /* === Trust Section === */
        .trust-section {
            background: var(--primary);
            color: var(--white);
        }
        .trust-section .section-title h2 { color: var(--white); }
        .trust-section .section-title h2::after { background: linear-gradient(90deg, var(--gold-light), var(--gold)); }
        .trust-section .section-title p { color: rgba(255,255,255,0.7); }

        .trust-stat {
            text-align: center;
            padding: 20px;
        }
        .trust-stat .number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--gold-light);
            line-height: 1.2;
        }
        .trust-stat .label {
            font-size: 1rem;
            color: rgba(255,255,255,0.8);
            margin-top: 8px;
        }
        .trust-stat .icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .trust-stat .number { font-size: 2.2rem; }
        }

        /* === Subscribe Section === */
        .subscribe-section {
            background: var(--white);
        }
        .subscribe-box {
            background: linear-gradient(135deg, var(--primary), #2a2a2a);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            color: var(--white);
        }
        .subscribe-box h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .subscribe-box p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
        }
        .subscribe-box .btn-gold {
            padding: 14px 36px;
            font-size: 1.05rem;
        }
        .subscribe-box .btn-outline-gold {
            border-color: rgba(255,255,255,0.5);
            color: var(--white);
            padding: 14px 36px;
            font-size: 1.05rem;
        }
        .subscribe-box .btn-outline-gold:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--gold-light);
            color: var(--gold-light);
        }
        .subscribe-form .form-control {
            height: 48px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 0 16px;
            background: var(--bg-light);
        }
        .subscribe-form .form-control:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(201,163,44,0.15);
        }
        @media (max-width: 768px) {
            .subscribe-box { padding: 32px 20px; }
            .subscribe-box h3 { font-size: 1.5rem; }
            .subscribe-box .btn-gold,
            .subscribe-box .btn-outline-gold { width: 100%; }
        }

        /* === News / CMS List === */
        .news-section {
            background: var(--bg-light);
        }
        .news-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold);
        }
        .news-card .badge {
            background: var(--gold);
            color: var(--white);
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: inline-block;
            margin-bottom: 10px;
        }
        .news-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .news-card .meta .read-more {
            color: var(--gold);
            font-weight: 600;
        }
        .news-card .meta .read-more i { transition: var(--transition); }
        .news-card .meta .read-more:hover i { transform: translateX(4px); }

        .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        /* === FAQ === */
        .faq-section {
            background: var(--white);
        }
        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-item:first-of-type { border-radius: var(--radius); }
        .accordion-item:last-of-type { border-radius: var(--radius); }
        .accordion-button {
            background: var(--white);
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 18px 24px;
            border-left: 4px solid var(--gold);
            border-radius: 0;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background: #FFF6D9;
            color: var(--primary);
            border-left-color: var(--gold-dark);
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--gold);
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23333'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        }
        .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231E1E1E'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        }
        .accordion-body {
            padding: 20px 24px;
            font-size: 0.98rem;
            color: #555;
            line-height: 1.8;
        }

        /* === CTA Section === */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), #2a2a2a);
            color: var(--white);
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-gold {
            padding: 16px 52px;
            font-size: 1.15rem;
        }
        @media (max-width: 768px) {
            .cta-section h2 { font-size: 1.8rem; }
            .cta-section .btn-gold { width: 100%; }
        }

        /* === Footer === */
        .footer {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 30px;
        }
        .footer h5 {
            color: var(--white);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }
        .footer a {
            color: rgba(255,255,255,0.65);
            display: block;
            padding: 4px 0;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--gold);
            text-decoration: none;
        }
        .footer .brand-footer {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 12px;
        }
        .footer p {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.6);
        }
        .footer .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            margin-right: 8px;
            transition: var(--transition);
            font-size: 1.1rem;
            padding: 0;
        }
        .footer .social-links a:hover {
            background: var(--gold);
            color: var(--white);
        }
        .footer .copyright {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
        }
        .footer .copyright a { display: inline; color: rgba(255,255,255,0.5); }
        .footer .copyright a:hover { color: var(--gold); }

        @media (max-width: 768px) {
            .footer { padding: 40px 0 20px; }
            .footer .col-md-3 { margin-bottom: 28px; }
        }

        /* === Miscellaneous === */
        .badge-gold {
            background: var(--gold);
            color: var(--white);
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
        }

        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gold);
            color: var(--white);
            border: none;
            font-size: 1.2rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            z-index: 999;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: var(--white);
        }

        /* focus accessibility */
        :focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
            --primary: #1E1E1E;
            --primary-light: #2c2c2c;
            --gold: #C9A32C;
            --gold-light: #D4AF37;
            --gold-gradient: linear-gradient(135deg, #D4AF37, #C9A32C);
            --bg-light: #F5F5F5;
            --white: #FFFFFF;
            --text-dark: #333333;
            --text-muted: #777777;
            --border-color: #E0E0E0;
            --radius: 6px;
            --radius-lg: 10px;
            --shadow-card: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-nav: 0 2px 8px rgba(0,0,0,0.04);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition: 0.3s ease;
        }

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

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-dark);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

        a { color: var(--text-dark); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--gold); }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: var(--white);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 0;
            transition: box-shadow var(--transition);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .navbar-custom.scrolled {
            box-shadow: var(--shadow-nav);
        }
        .navbar-custom .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-custom .navbar-brand i {
            font-size: 1.4rem;
        }
        .navbar-custom .navbar-brand:hover { color: var(--gold); }

        .navbar-custom .nav-link {
            font-size: 1rem;
            font-weight: 500;
            color: var(--primary);
            padding: 8px 16px !important;
            border-radius: var(--radius);
            transition: color var(--transition), background var(--transition);
            position: relative;
        }
        .navbar-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--gold);
            transition: transform var(--transition);
            transform-origin: center;
        }
        .navbar-custom .nav-link:hover::after,
        .navbar-custom .nav-link.active::after { transform: translateX(-50%) scaleX(1); }
        .navbar-custom .nav-link:hover { color: var(--gold); background: rgba(201,163,44,0.06); }
        .navbar-custom .nav-link.active { color: var(--gold); background: transparent; }

        .btn-gold {
            background: var(--gold-gradient);
            border: none;
            color: var(--white);
            font-weight: 600;
            padding: 10px 28px;
            border-radius: var(--radius-lg);
            transition: transform var(--transition), box-shadow var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1rem;
            line-height: 1.4;
            height: 44px;
        }
        .btn-gold:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(201,163,44,0.35);
            color: var(--white);
        }
        .btn-gold:active { transform: scale(0.98); }

        .btn-gold-outline {
            background: transparent;
            border: 2px solid var(--gold);
            color: var(--gold);
            font-weight: 600;
            padding: 8px 24px;
            border-radius: var(--radius-lg);
            transition: background var(--transition), color var(--transition), transform var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-gold-outline:hover {
            background: rgba(201,163,44,0.10);
            color: var(--gold);
            transform: scale(1.03);
        }

        .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 1.4rem;
            padding: 4px 8px;
        }
        .navbar-toggler:focus { box-shadow: none; }

        /* ===== 文章页 ===== */
        .article-wrapper {
            padding: 60px 0 80px;
        }
        .article-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a { color: var(--text-muted); }
        .breadcrumb-custom a:hover { color: var(--gold); }
        .breadcrumb-custom .separator { color: #bbb; }
        .breadcrumb-custom .current { color: var(--gold); font-weight: 500; }

        .article-header {
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 24px;
        }
        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta i { margin-right: 6px; color: var(--gold); }
        .article-meta .category-badge {
            background: var(--gold-gradient);
            color: var(--white);
            padding: 2px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-dark);
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 600;
            margin: 32px 0 16px;
            color: var(--primary);
        }
        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--primary);
        }
        .article-body p { margin-bottom: 1.2rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.2rem; padding-left: 24px; }
        .article-body li { margin-bottom: 6px; }
        .article-body blockquote {
            border-left: 4px solid var(--gold);
            background: rgba(201,163,44,0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
            color: #555;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px auto;
            box-shadow: var(--shadow-card);
        }
        .article-body pre {
            background: #f0f0f0;
            padding: 16px 20px;
            border-radius: var(--radius);
            overflow-x: auto;
            font-family: 'Courier New', monospace;
            font-size: 0.9rem;
            margin: 20px 0;
        }
        .article-body code { background: #f0f0f0; padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }
        .article-body a { color: var(--gold); text-decoration: underline; }
        .article-body a:hover { color: #b08d20; }

        .article-footer {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }

        .related-section {
            margin-top: 40px;
        }
        .related-section h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h3 i { color: var(--gold); }
        .related-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--gold);
        }
        .related-card .img-wrap {
            height: 160px;
            background: #eee;
            overflow: hidden;
        }
        .related-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 16px 20px;
        }
        .related-card .card-body h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .date {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .related-card .card-body .date i { margin-right: 4px; color: var(--gold); }

        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--primary);
            padding: 60px 0;
            margin-top: 60px;
        }
        .cta-section h2 {
            color: var(--white);
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            margin-bottom: 24px;
        }
        .cta-section .btn-gold {
            font-size: 1.1rem;
            padding: 14px 48px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 30px;
        }
        .footer .brand-footer {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer p { font-size: 0.95rem; line-height: 1.7; color: rgba(255,255,255,0.65); }
        .footer h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 16px;
        }
        .footer a {
            display: block;
            color: rgba(255,255,255,0.65);
            font-size: 0.95rem;
            margin-bottom: 10px;
            transition: color var(--transition);
        }
        .footer a:hover { color: var(--gold); }

        .footer .social-links a {
            display: inline-block;
            width: 40px;
            height: 40px;
            line-height: 40px;
            text-align: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            margin-right: 8px;
            margin-bottom: 0;
            transition: background var(--transition), color var(--transition);
        }
        .footer .social-links a:hover {
            background: var(--gold);
            color: var(--white);
        }

        .footer .copyright {
            border-top: 1px solid rgba(255,255,255,0.10);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
        }
        .footer .copyright p {
            color: rgba(255,255,255,0.45);
            font-size: 0.85rem;
            margin: 0;
        }
        .footer .copyright a { display: inline; color: rgba(255,255,255,0.45); }
        .footer .copyright a:hover { color: var(--gold); }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .navbar-custom .navbar-nav { padding-top: 12px; }
            .navbar-custom .nav-link { padding: 10px 0 !important; }
            .navbar-custom .nav-link::after { display: none; }
            .navbar-custom .btn-gold { margin-top: 12px; width: 100%; justify-content: center; }
            .article-header h1 { font-size: 1.8rem; }
        }

        @media (max-width: 767px) {
            .article-wrapper { padding: 40px 0 60px; }
            .article-header h1 { font-size: 1.5rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
            .article-body { font-size: 1rem; }
            .article-body h2 { font-size: 1.35rem; }
            .article-body h3 { font-size: 1.15rem; }
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-gold { width: 100%; justify-content: center; }
            .footer { padding: 40px 0 20px; }
            .related-card .img-wrap { height: 120px; }
        }

        @media (max-width: 520px) {
            .container-custom { padding: 0 16px; }
            .article-header h1 { font-size: 1.3rem; }
            .breadcrumb-custom { font-size: 0.8rem; gap: 4px; }
            .not-found-box { padding: 40px 16px; }
            .not-found-box i { font-size: 3rem; }
            .not-found-box h2 { font-size: 1.4rem; }
        }

        /* 辅助 */
        .text-gold { color: var(--gold); }
        .bg-gold-light { background: rgba(201,163,44,0.06); }
        .mb-0 { margin-bottom: 0; }
        .gap-8 { gap: 8px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1E1E1E;
            --color-gold-dark: #C9A32C;
            --color-gold-light: #D4AF37;
            --color-gold-gradient: linear-gradient(135deg, #D4AF37, #C9A32C);
            --color-bg: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text: #333333;
            --color-text-muted: #777777;
            --color-border: #E0E0E0;
            --color-danger: #E53935;
            --radius-sm: 6px;
            --radius-lg: 10px;
            --shadow-card: 0 4px 16px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-nav: 0 2px 8px rgba(0,0,0,0.04);
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition-base: 0.3s ease;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            padding-top: 76px;
        }
        a {
            color: var(--color-text);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-sm);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
        }
        h1 {
            font-size: 2.5rem;
        }
        h2 {
            font-size: 2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.25rem;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.75rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            h4 {
                font-size: 1.1rem;
            }
            body {
                padding-top: 66px;
            }
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            background: var(--color-white);
            box-shadow: var(--shadow-nav);
            padding: 12px 0;
            transition: background var(--transition-base), box-shadow var(--transition-base);
            min-height: 76px;
        }
        .navbar-custom .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-gold-dark);
            letter-spacing: 1px;
        }
        .navbar-custom .navbar-brand i {
            color: var(--color-gold-dark);
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--color-gold-light);
        }
        .navbar-custom .nav-link {
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text);
            padding: 8px 18px !important;
            position: relative;
            transition: color var(--transition-base);
        }
        .navbar-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--color-gold-gradient);
            transition: width var(--transition-base), left var(--transition-base);
            border-radius: 2px;
        }
        .navbar-custom .nav-link:hover::after,
        .navbar-custom .nav-link.active::after {
            width: 60%;
            left: 20%;
        }
        .navbar-custom .nav-link:hover {
            color: var(--color-gold-dark);
        }
        .navbar-custom .nav-link.active {
            color: var(--color-gold-dark);
        }
        .navbar-custom .navbar-toggler {
            border: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 4px 8px;
        }
        .navbar-custom .navbar-toggler:focus {
            box-shadow: none;
        }
        .btn-gold {
            background: var(--color-gold-gradient);
            color: var(--color-white) !important;
            border: none;
            border-radius: var(--radius-lg);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .btn-gold:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(201, 163, 44, 0.35);
            color: var(--color-white) !important;
        }
        .btn-gold:active {
            transform: scale(0.98);
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--color-gold-dark) !important;
            border: 2px solid var(--color-gold-dark);
            border-radius: var(--radius-lg);
            padding: 10px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .btn-outline-gold:hover {
            background: rgba(201, 163, 44, 0.10);
            transform: scale(1.03);
        }
        .btn-outline-gold:active {
            transform: scale(0.98);
        }
        @media (max-width: 991px) {
            .navbar-custom .nav-link {
                padding: 10px 0 !important;
            }
            .navbar-custom .nav-link::after {
                display: none;
            }
            .navbar-custom .btn-gold {
                margin-top: 12px;
                width: 100%;
            }
        }

        /* ===== Hero 区 ===== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            color: var(--color-white);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-section h1 {
            color: var(--color-white);
            font-size: 3rem;
            font-weight: 800;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
            margin-bottom: 16px;
        }
        .hero-section h1 .highlight {
            color: var(--color-gold-light);
        }
        .hero-section .hero-sub {
            font-size: 1.25rem;
            max-width: 640px;
            margin-bottom: 32px;
            opacity: 0.92;
            line-height: 1.6;
        }
        .hero-section .btn-hero {
            padding: 16px 52px;
            font-size: 1.2rem;
            border-radius: var(--radius-lg);
            background: var(--color-gold-gradient);
            color: var(--color-white);
            border: none;
            font-weight: 700;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            box-shadow: 0 4px 16px rgba(201, 163, 44, 0.30);
        }
        .hero-section .btn-hero:hover {
            transform: scale(1.04);
            box-shadow: 0 8px 28px rgba(201, 163, 44, 0.45);
            color: var(--color-white);
        }
        .hero-section .btn-hero:active {
            transform: scale(0.97);
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 380px;
                background-position: 65% center;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .hero-sub {
                font-size: 1rem;
            }
            .hero-section .btn-hero {
                width: 100%;
                padding: 14px 32px;
                font-size: 1.05rem;
            }
        }

        /* ===== 通用板块间距 ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
        }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            margin-bottom: 12px;
        }
        .section-title p {
            color: var(--color-text-muted);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== 左右分栏区块 (分类页1特色) ===== */
        .split-layout {
            display: flex;
            align-items: center;
            gap: 48px;
            flex-wrap: wrap;
        }
        .split-layout .split-image {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .split-layout .split-image img {
            width: 100%;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-card);
            display: block;
        }
        .split-layout .split-text {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .split-layout .split-text h2 {
            margin-bottom: 20px;
        }
        .split-layout .split-text p {
            color: var(--color-text);
            margin-bottom: 16px;
            font-size: 1.05rem;
        }
        .split-layout .split-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
        .split-layout .split-text .feature-list li {
            padding: 8px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 1rem;
        }
        .split-layout .split-text .feature-list li i {
            color: var(--color-gold-dark);
            font-size: 1.2rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        @media (max-width: 768px) {
            .split-layout {
                gap: 32px;
            }
            .split-layout .split-image {
                flex: 1 1 100%;
            }
            .split-layout .split-text {
                flex: 1 1 100%;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-custom {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            padding: 28px 24px;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-gold-dark);
        }
        .card-custom .card-icon {
            font-size: 2.4rem;
            color: var(--color-gold-dark);
            margin-bottom: 16px;
        }
        .card-custom h4 {
            margin-bottom: 12px;
        }
        .card-custom p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .card-custom .card-link {
            color: var(--color-gold-dark);
            font-weight: 600;
            font-size: 0.95rem;
        }
        .card-custom .card-link i {
            transition: margin-left var(--transition-base);
        }
        .card-custom .card-link:hover i {
            margin-left: 6px;
        }

        /* ===== 步骤流程 ===== */
        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            height: 100%;
        }
        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .step-item .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-gold-gradient);
            color: var(--color-white);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .step-item h4 {
            margin-bottom: 12px;
        }
        .step-item p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== 信任数据 ===== */
        .trust-stats {
            background: var(--color-primary);
            color: var(--color-white);
            padding: 60px 0;
        }
        .trust-stats .stat-item {
            text-align: center;
            padding: 16px;
        }
        .trust-stats .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-gold-light);
            line-height: 1.2;
        }
        .trust-stats .stat-label {
            font-size: 1rem;
            opacity: 0.85;
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .trust-stats .stat-number {
                font-size: 2.2rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-gold-dark);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--color-white);
            border-left: 4px solid var(--color-gold-dark);
            transition: background var(--transition-base);
            user-select: none;
        }
        .faq-question i {
            transition: transform var(--transition-base);
            color: var(--color-gold-dark);
            font-size: 1.1rem;
        }
        .faq-question[aria-expanded="true"] {
            background: #FFF6D9;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--color-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }
        .faq-answer p {
            margin-bottom: 0;
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            background: var(--color-primary);
            color: var(--color-white);
            text-align: center;
            padding: 72px 0;
        }
        .cta-section h2 {
            color: var(--color-white);
            font-size: 2.2rem;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            padding: 16px 56px;
            font-size: 1.2rem;
            border-radius: var(--radius-lg);
            background: var(--color-gold-gradient);
            color: var(--color-white);
            border: none;
            font-weight: 700;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            box-shadow: 0 4px 16px rgba(201, 163, 44, 0.25);
        }
        .cta-section .btn-cta:hover {
            transform: scale(1.04);
            box-shadow: 0 8px 28px rgba(201, 163, 44, 0.40);
            color: var(--color-white);
        }
        .cta-section .btn-cta:active {
            transform: scale(0.97);
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section .btn-cta {
                width: 100%;
                padding: 14px 32px;
                font-size: 1.05rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
            font-size: 0.95rem;
        }
        .footer .brand-footer {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-gold-light);
            margin-bottom: 16px;
        }
        .footer p {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }
        .footer h5 {
            color: var(--color-white);
            font-weight: 600;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        .footer a {
            color: rgba(255, 255, 255, 0.7);
            display: block;
            padding: 4px 0;
            transition: color var(--transition-base);
        }
        .footer a:hover {
            color: var(--color-gold-light);
        }
        .footer .social-links a {
            display: inline-block;
            font-size: 1.4rem;
            margin-right: 16px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-base), transform var(--transition-base);
        }
        .footer .social-links a:hover {
            color: var(--color-gold-light);
            transform: translateY(-2px);
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 24px 0;
            margin-top: 40px;
            text-align: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
        }
        .footer .copyright a {
            display: inline;
            color: rgba(255, 255, 255, 0.5);
            padding: 0;
        }
        .footer .copyright a:hover {
            color: var(--color-gold-light);
        }
        @media (max-width: 768px) {
            .footer .col-lg-2,
            .footer .col-lg-3,
            .footer .col-lg-4 {
                margin-bottom: 32px;
            }
            .footer .brand-footer {
                font-size: 1.3rem;
            }
        }

        /* ===== 徽章 ===== */
        .badge-gold {
            background: var(--color-gold-gradient);
            color: var(--color-white);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== 响应式辅助 ===== */
        @media (max-width: 576px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
        }

        /* ===== 渐入动画 ===== */
        .fade-in {
            animation: fadeInUp 0.6s ease both;
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ===== 分隔线 ===== */
        .divider-gold {
            width: 60px;
            height: 3px;
            background: var(--color-gold-gradient);
            border-radius: 3px;
            margin: 16px auto 24px;
        }
        .divider-gold-left {
            width: 60px;
            height: 3px;
            background: var(--color-gold-gradient);
            border-radius: 3px;
            margin: 16px 0 24px;
        }

        /* ===== 背景色板块 ===== */
        .bg-white-section {
            background: var(--color-white);
        }
        .bg-light-section {
            background: var(--color-bg);
        }

/* roulang page: category2 */
:root {
            --primary: #1E1E1E;
            --gold: #C9A32C;
            --gold-light: #D4AF37;
            --gold-gradient: linear-gradient(135deg, #D4AF37, #C9A32C);
            --bg-light: #F5F5F5;
            --white: #FFFFFF;
            --text-dark: #333333;
            --text-muted: #777777;
            --border-color: #E0E0E0;
            --radius: 6px;
            --radius-lg: 10px;
            --shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.10);
            --transition: 0.3s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            color: var(--text-dark);
            background: var(--bg-light);
            line-height: 1.8;
            letter-spacing: 0.3px;
            margin: 0;
            padding: 0;
            padding-top: 76px;
        }
        a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--gold);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 60px 0;
            }
            body {
                padding-top: 66px;
            }
        }
        .text-gold {
            color: var(--gold);
        }
        .bg-gold {
            background: var(--gold-gradient);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 3rem auto;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 2rem;
            }
        }

        /* Navbar */
        .navbar-custom {
            background: var(--white);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            padding: 12px 0;
            transition: background var(--transition), box-shadow var(--transition);
            z-index: 1050;
        }
        .navbar-custom .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold);
            display: flex;
            align-items: center;
        }
        .navbar-custom .navbar-brand i {
            font-size: 1.4rem;
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--gold-light);
        }
        .navbar-custom .nav-link {
            font-size: 1rem;
            padding: 8px 16px !important;
            color: var(--text-dark);
            font-weight: 500;
            position: relative;
            transition: color var(--transition);
        }
        .navbar-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--gold);
            transition: transform var(--transition);
        }
        .navbar-custom .nav-link:hover::after,
        .navbar-custom .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold);
        }
        .navbar-custom .nav-link.active {
            font-weight: 600;
        }
        .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 1.4rem;
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* Buttons */
        .btn-gold {
            background: var(--gold-gradient);
            color: var(--white);
            border: none;
            border-radius: var(--radius-lg);
            padding: 12px 32px;
            font-weight: 600;
            font-size: 1rem;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 12px rgba(201, 163, 44, 0.3);
        }
        .btn-gold:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(201, 163, 44, 0.45);
            color: var(--white);
        }
        .btn-gold:active {
            transform: scale(0.98);
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--gold);
            border: 2px solid var(--gold);
            border-radius: var(--radius-lg);
            padding: 10px 28px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .btn-outline-gold:hover {
            background: rgba(201, 163, 44, 0.1);
            color: var(--gold);
            transform: scale(1.03);
        }
        .btn-outline-gold:active {
            transform: scale(0.98);
        }
        .btn-lg-custom {
            padding: 14px 48px;
            font-size: 1.2rem;
        }
        @media (max-width: 576px) {
            .btn-lg-custom {
                padding: 12px 32px;
                font-size: 1rem;
                width: 100%;
            }
            .btn-outline-gold {
                width: 100%;
            }
        }

        /* Hero */
        .hero-ios {
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.85), rgba(30, 30, 30, 0.70)), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            min-height: 580px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            animation: heroFadeIn 0.6s ease;
        }
        @keyframes heroFadeIn {
            0% { opacity: 0; }
            100% { opacity: 1; }
        }
        .hero-ios .hero-content {
            color: var(--white);
            padding: 60px 0;
        }
        .hero-ios h1 {
            font-size: 2.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
        }
        .hero-ios h1 span {
            color: var(--gold-light);
        }
        .hero-ios .hero-sub {
            font-size: 1.25rem;
            opacity: 0.9;
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-ios .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .hero-ios .hero-stats .stat-item {
            text-align: center;
        }
        .hero-ios .hero-stats .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--gold-light);
            display: block;
        }
        .hero-ios .hero-stats .stat-label {
            font-size: 0.95rem;
            opacity: 0.8;
        }
        @media (max-width: 768px) {
            .hero-ios {
                min-height: 420px;
            }
            .hero-ios h1 {
                font-size: 2rem;
            }
            .hero-ios .hero-sub {
                font-size: 1.05rem;
            }
            .hero-ios .hero-stats {
                gap: 24px;
                justify-content: center;
            }
            .hero-ios .hero-stats .stat-number {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 576px) {
            .hero-ios h1 {
                font-size: 1.6rem;
            }
        }

        /* Breadcrumb */
        .breadcrumb-custom {
            background: transparent;
            padding: 16px 0 0 0;
            margin: 0;
            font-size: 0.9rem;
        }
        .breadcrumb-custom .breadcrumb-item + .breadcrumb-item::before {
            color: var(--text-muted);
            content: "›";
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
        }
        .breadcrumb-custom a:hover {
            color: var(--gold);
        }
        .breadcrumb-custom .active {
            color: var(--gold);
        }

        /* Cards */
        .card-custom {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold);
        }
        .card-custom .card-icon {
            font-size: 2.4rem;
            color: var(--gold);
            margin-bottom: 16px;
        }
        .card-custom h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .card-custom p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* Stats row */
        .stats-row {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 32px;
            margin-top: -60px;
            position: relative;
            z-index: 10;
        }
        .stats-row .stat-item {
            text-align: center;
            padding: 12px 8px;
        }
        .stats-row .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--gold);
            display: block;
        }
        .stats-row .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .stats-row .stat-divider {
            border-right: 1px solid var(--border-color);
        }
        @media (max-width: 768px) {
            .stats-row {
                margin-top: -40px;
                padding: 24px 16px;
            }
            .stats-row .stat-divider {
                border-right: none;
                border-bottom: 1px solid var(--border-color);
                padding-bottom: 16px;
                margin-bottom: 16px;
            }
            .stats-row .stat-number {
                font-size: 1.8rem;
            }
        }

        /* Feature blocks */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 40px;
            margin-bottom: 60px;
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-block .feature-img {
            flex: 0 0 45%;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .feature-block .feature-img img {
            width: 100%;
            height: 300px;
            object-fit: cover;
            display: block;
        }
        .feature-block .feature-text {
            flex: 1;
        }
        .feature-block .feature-text h3 {
            font-size: 1.6rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .feature-block .feature-text p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }
        .feature-block .feature-text .feature-tag {
            display: inline-block;
            background: rgba(201, 163, 44, 0.12);
            color: var(--gold);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 12px;
        }
        @media (max-width: 992px) {
            .feature-block,
            .feature-block.reverse {
                flex-direction: column;
                gap: 24px;
            }
            .feature-block .feature-img {
                flex: 0 0 100%;
                width: 100%;
            }
            .feature-block .feature-img img {
                height: 220px;
            }
            .feature-block .feature-text h3 {
                font-size: 1.3rem;
            }
        }

        /* Steps */
        .step-card {
            background: var(--white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            position: relative;
            height: 100%;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-card .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--gold-gradient);
            color: var(--white);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .step-card h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .step-connector {
            display: none;
        }
        @media (min-width: 992px) {
            .step-connector {
                display: flex;
                align-items: center;
                justify-content: center;
                font-size: 1.8rem;
                color: var(--gold);
                position: absolute;
                right: -20px;
                top: 50%;
                transform: translateY(-50%);
                z-index: 2;
            }
        }

        /* FAQ Accordion */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .accordion-custom .accordion-button {
            background: var(--white);
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 18px 24px;
            border-left: 4px solid var(--gold);
            box-shadow: none;
            transition: background var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: #FFF6D9;
            color: var(--primary);
            border-left-color: var(--gold-light);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(201, 163, 44, 0.3);
        }
        .accordion-custom .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23C9A32C'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
            transition: transform var(--transition);
        }
        .accordion-custom .accordion-body {
            padding: 20px 24px;
            background: var(--white);
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.98rem;
        }
        .accordion-custom .accordion-body ul {
            padding-left: 20px;
            margin-bottom: 0;
        }
        .accordion-custom .accordion-body ul li {
            margin-bottom: 6px;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, rgba(30, 30, 30, 0.92), rgba(30, 30, 30, 0.80)), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            padding: 80px 0;
            text-align: center;
            color: var(--white);
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 32px auto;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 1rem;
            }
        }

        /* Footer */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 30px 0;
        }
        .footer .brand-footer {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 16px;
        }
        .footer p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer h5 {
            color: var(--white);
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 36px;
            height: 2px;
            background: var(--gold);
        }
        .footer a {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer a:hover {
            color: var(--gold-light);
        }
        .footer .social-links a {
            display: inline-block;
            font-size: 1.4rem;
            margin-right: 18px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition), transform var(--transition);
        }
        .footer .social-links a:hover {
            color: var(--gold-light);
            transform: scale(1.1);
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer .copyright a {
            display: inline;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer .copyright a:hover {
            color: var(--gold-light);
        }
        @media (max-width: 768px) {
            .footer {
                padding: 40px 0 20px 0;
            }
            .footer .brand-footer {
                font-size: 1.3rem;
            }
        }

        /* Utils */
        .badge-gold {
            background: var(--gold-gradient);
            color: var(--white);
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.8rem;
        }

        /* Accessibility */
        a:focus-visible,
        button:focus-visible,
        .accordion-button:focus-visible {
            outline: 3px solid rgba(201, 163, 44, 0.5);
            outline-offset: 2px;
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: #bbb;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #999;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1E1E1E;
            --primary-light: #2D2D2D;
            --gold: #C9A32C;
            --gold-light: #D4AF37;
            --gold-gradient: linear-gradient(135deg, #D4AF37, #C9A32C);
            --bg-body: #F5F5F5;
            --bg-white: #FFFFFF;
            --text-dark: #333333;
            --text-muted: #777777;
            --text-light: #AAAAAA;
            --border-color: #E0E0E0;
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.10);
            --radius: 6px;
            --radius-lg: 10px;
            --transition: all 0.3s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-body);
            color: var(--text-dark);
            line-height: 1.8;
            font-weight: 400;
            padding-top: 76px;
            -webkit-font-smoothing: antialiased;
        }

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

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 导航栏 ===== */
        .navbar-custom {
            background: var(--bg-white);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            padding: 12px 0;
            transition: var(--transition);
            min-height: 76px;
        }
        .navbar-custom .navbar-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--gold);
            display: flex;
            align-items: center;
            letter-spacing: 0.5px;
        }
        .navbar-custom .navbar-brand i {
            font-size: 1.4rem;
            color: var(--gold);
        }
        .navbar-custom .navbar-brand:hover {
            color: var(--gold-light);
        }
        .navbar-custom .nav-link {
            font-weight: 500;
            color: var(--text-dark);
            padding: 8px 16px !important;
            position: relative;
            transition: var(--transition);
            font-size: 1rem;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold);
        }
        .navbar-custom .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--gold-gradient);
            transition: transform 0.3s ease;
            transform-origin: center;
        }
        .navbar-custom .nav-link:hover::after,
        .navbar-custom .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== 按钮 ===== */
        .btn-gold {
            background: var(--gold-gradient);
            color: #fff;
            border: none;
            border-radius: var(--radius-lg);
            padding: 12px 32px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 12px rgba(201, 163, 44, 0.30);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-gold:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(201, 163, 44, 0.45);
            color: #fff;
        }
        .btn-gold:focus {
            outline: 3px solid rgba(201, 163, 44, 0.5);
            outline-offset: 2px;
        }
        .btn-gold:active {
            transform: scale(0.98);
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--gold);
            border: 2px solid var(--gold);
            border-radius: var(--radius-lg);
            padding: 10px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .btn-outline-gold:hover {
            background: rgba(201, 163, 44, 0.10);
            color: var(--gold);
            transform: scale(1.02);
        }
        .btn-outline-gold:focus {
            outline: 3px solid rgba(201, 163, 44, 0.4);
            outline-offset: 2px;
        }

        .btn-lg-custom {
            padding: 14px 48px;
            font-size: 1.2rem;
            border-radius: var(--radius-lg);
        }

        /* ===== Hero 横幅 ===== */
        .hero-banner {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
            color: #fff;
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1;
        }
        .hero-banner .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }
        .hero-banner h1 {
            font-size: 2.8rem;
            font-weight: 700;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero-banner .lead {
            font-size: 1.25rem;
            max-width: 640px;
            opacity: 0.92;
            margin-bottom: 28px;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
        }

        /* ===== 板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 40px;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--gold-gradient);
            margin: 12px auto 24px;
            border-radius: 2px;
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold);
        }
        .card-custom .card-body {
            padding: 24px 20px;
        }
        .card-custom .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 徽章 */
        .badge-gold {
            background: var(--gold-gradient);
            color: #fff;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: inline-block;
        }

        /* ===== 步骤卡片（差异化） ===== */
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--gold-gradient);
            color: #fff;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .step-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 功能介绍区块 ===== */
        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(201, 163, 44, 0.12);
            color: var(--gold);
            font-size: 1.8rem;
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .feature-item:hover .feature-icon {
            background: var(--gold-gradient);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-item h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== 系统要求表格 ===== */
        .sys-req-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .sys-req-table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            padding: 14px 20px;
            text-align: left;
        }
        .sys-req-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-dark);
        }
        .sys-req-table tr:last-child td {
            border-bottom: none;
        }
        .sys-req-table tr:hover td {
            background: rgba(201, 163, 44, 0.04);
        }

        /* ===== FAQ 手风琴 ===== */
        .accordion-custom .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius) !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: var(--bg-white);
        }
        .accordion-custom .accordion-button {
            font-weight: 600;
            color: var(--text-dark);
            background: var(--bg-white);
            border-left: 4px solid var(--gold);
            border-radius: 0 !important;
            padding: 16px 20px;
            font-size: 1rem;
            box-shadow: none;
            transition: var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: #FFF6D9;
            color: var(--primary);
            border-left-color: var(--gold-light);
        }
        .accordion-custom .accordion-button::after {
            background-size: 1rem;
            transition: var(--transition);
        }
        .accordion-custom .accordion-body {
            padding: 16px 20px 20px;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        /* ===== CTA 区域 ===== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 60px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 28px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--primary);
            color: #ccc;
            padding: 60px 0 0;
        }
        .footer .brand-footer {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer p {
            font-size: 0.92rem;
            line-height: 1.8;
            color: #aaa;
        }
        .footer h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            margin-bottom: 16px;
        }
        .footer a {
            display: block;
            color: #aaa;
            font-size: 0.92rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer a:hover {
            color: var(--gold);
        }
        .footer .social-links a {
            display: inline-block;
            font-size: 1.4rem;
            margin-right: 16px;
            color: #aaa;
            transition: var(--transition);
        }
        .footer .social-links a:hover {
            color: var(--gold);
            transform: translateY(-2px);
        }
        .footer .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
            font-size: 0.88rem;
            color: #888;
        }
        .footer .copyright a {
            display: inline;
            color: #aaa;
            padding: 0 4px;
        }
        .footer .copyright a:hover {
            color: var(--gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .navbar-custom .navbar-collapse {
                background: var(--bg-white);
                padding: 12px 0;
                border-radius: var(--radius);
                box-shadow: var(--shadow-hover);
                margin-top: 8px;
            }
            .navbar-custom .nav-link {
                padding: 10px 20px !important;
                text-align: center;
            }
            .navbar-custom .navbar-nav .btn-gold {
                margin: 12px auto 8px;
                display: block;
                width: fit-content;
            }
            .hero-banner h1 {
                font-size: 2rem;
            }
            .hero-banner .lead {
                font-size: 1.05rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .step-card {
                padding: 24px 16px;
            }
            .sys-req-table th,
            .sys-req-table td {
                padding: 10px 14px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 767.98px) {
            body {
                padding-top: 66px;
            }
            .navbar-custom {
                padding: 8px 0;
                min-height: 66px;
            }
            .navbar-custom .navbar-brand {
                font-size: 1.3rem;
            }
            .hero-banner {
                min-height: 320px;
            }
            .hero-banner h1 {
                font-size: 1.6rem;
            }
            .hero-banner .lead {
                font-size: 0.95rem;
            }
            .btn-lg-custom {
                padding: 12px 32px;
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer .brand-footer {
                font-size: 1.2rem;
            }
            .footer .social-links a {
                font-size: 1.2rem;
                margin-right: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 1.4rem;
            }
            .hero-banner .lead {
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .card-custom .card-body {
                padding: 16px;
            }
            .step-card {
                padding: 20px 12px;
            }
            .sys-req-table {
                font-size: 0.85rem;
            }
            .sys-req-table th,
            .sys-req-table td {
                padding: 8px 10px;
            }
            .accordion-custom .accordion-button {
                font-size: 0.92rem;
                padding: 12px 16px;
            }
            .accordion-custom .accordion-body {
                padding: 12px 16px 16px;
                font-size: 0.88rem;
            }
        }

        /* ===== 辅助 ===== */
        .bg-gold-soft {
            background: rgba(201, 163, 44, 0.06);
        }
        .text-gold {
            color: var(--gold);
        }
        .gap-16 {
            gap: 16px;
        }
        .mb-section {
            margin-bottom: 80px;
        }
        @media (max-width: 767.98px) {
            .mb-section {
                margin-bottom: 60px;
            }
        }