/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1E5F86;
            --primary-light: #E8F1F8;
            --accent: #C97E48;
            --bg: #F2F6FA;
            --card-bg: #FFFFFF;
            --text-dark: #1C2E40;
            --text-body: #556C82;
            --border: #E3EAF2;
            --inner-border: #C5D3E0;
            --success: #2E7D62;
            --danger: #B4442C;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 16px;
            --radius-input: 6px;
            --shadow-card: 0 2px 8px rgba(30, 95, 134, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 95, 134, 0.12);
            --transition: 0.2s ease;
            --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
        }
        
        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }
        
        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text-dark);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        
        a:hover {
            color: var(--accent);
        }
        
        img {
            max-width: 100%;
            height: auto;
        }
        
        .container {
            max-width: 1200px;
        }
        
        .section-spacing {
            padding: 72px 0;
        }
        
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: var(--text-dark);
        }
        
        .section-subtitle {
            font-size: 16px;
            color: var(--text-body);
            margin-bottom: 24px;
        }
        
        @media (max-width: 768px) {
            .section-spacing {
                padding: 48px 0;
            }
            .section-title {
                font-size: 22px;
            }
        }
        
        /* ===== 顶部信息条 ===== */
        .topbar {
            background-color: var(--primary);
            color: #fff;
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
            z-index: 1030;
            position: relative;
        }
        
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .topbar-domain {
            font-weight: 400;
            letter-spacing: 0.02em;
            opacity: 0.9;
        }
        
        .topbar-links {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        
        .topbar-links a {
            color: #fff;
            opacity: 0.85;
            font-size: 13px;
            transition: opacity var(--transition);
        }
        
        .topbar-links a:hover {
            opacity: 1;
            color: #fff;
        }
        
        .topbar-links .topbar-btn {
            display: inline-block;
            padding: 2px 14px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 4px;
            opacity: 1;
            font-weight: 500;
        }
        
        .topbar-links .topbar-btn:hover {
            background-color: rgba(255, 255, 255, 0.15);
        }
        
        @media (max-width: 768px) {
            .topbar-links a:not(.topbar-btn) {
                display: none;
            }
        }
        
        /* ===== 主导航 ===== */
        .main-nav {
            background-color: var(--card-bg);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1020;
            box-shadow: 0 1px 4px rgba(30, 95, 134, 0.03);
        }
        
        .navbar {
            padding: 0;
            min-height: 68px;
        }
        
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border-radius: 8px;
            margin-right: 8px;
            font-family: var(--font-stack);
        }
        
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: 0.02em;
        }
        
        .brand-text span {
            color: var(--accent);
        }
        
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            padding: 22px 16px;
            position: relative;
        }
        
        .navbar-nav .nav-link:hover {
            color: var(--text-dark);
        }
        
        .navbar-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 16px;
            right: 16px;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        
        .navbar-nav .nav-link:hover::after,
        .navbar-nav .nav-link.active::after {
            transform: scaleX(1);
        }
        
        .navbar-nav .nav-link.active {
            color: var(--text-dark);
            font-weight: 600;
        }
        
        .nav-btn {
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            background-color: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
            transition: all var(--transition);
        }
        
        .nav-btn:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-1px);
        }
        
        .navbar-toggler {
            border: 1px solid var(--border);
            padding: 6px 10px;
            border-radius: 8px;
        }
        
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(30, 95, 134, 0.15);
        }
        
        @media (max-width: 991px) {
            .navbar-nav .nav-link {
                padding: 12px 8px;
                text-align: left;
            }
            .navbar-nav .nav-link::after {
                bottom: 6px;
            }
            .nav-btn {
                margin-top: 8px;
                display: inline-block;
                text-align: center;
            }
        }
        
        /* ===== Hero 区 ===== */
        .hero-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 72px 0 64px;
            min-height: min(680px, 85vh);
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-color: rgba(242, 246, 250, 0.75);
            z-index: 1;
        }
        
        .hero-section .container {
            position: relative;
            z-index: 2;
        }
        
        .hero-eyebrow {
            display: inline-block;
            background-color: rgba(30, 95, 134, 0.12);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        
        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin-bottom: 16px;
            max-width: 500px;
        }
        
        .hero-subtitle {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.7;
            max-width: 400px;
            margin-bottom: 28px;
        }
        
        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        
        .btn-primary-custom {
            display: inline-block;
            background-color: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            line-height: 1.4;
        }
        
        .btn-primary-custom:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 126, 72, 0.3);
        }
        
        .btn-outline-custom {
            display: inline-block;
            background-color: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 11px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            line-height: 1.4;
        }
        
        .btn-outline-custom:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }
        
        .hero-points {
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        
        .hero-point {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-body);
        }
        
        .hero-point i {
            color: var(--success);
            font-size: 13px;
        }
        
        /* 登录卡 */
        .login-card {
            background-color: #fff;
            border: 2px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: 0 8px 32px rgba(30, 95, 134, 0.1);
            max-width: 380px;
            margin-left: auto;
        }
        
        .login-card-header {
            margin-bottom: 20px;
        }
        
        .login-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        
        .login-card-sub {
            font-size: 13px;
            color: var(--text-body);
        }
        
        .login-card .form-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            margin-bottom: 6px;
        }
        
        .login-card .form-control {
            height: 44px;
            border-radius: var(--radius-input);
            border: 1px solid var(--inner-border);
            font-size: 14px;
            padding: 0 14px;
            width: 100%;
            transition: border-color var(--transition), box-shadow var(--transition);
            background-color: #fff;
            color: var(--text-dark);
        }
        
        .login-card .form-control::placeholder {
            color: #A0AFC0;
        }
        
        .login-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 95, 134, 0.15);
            outline: none;
        }
        
        .login-card .btn-primary-custom {
            width: 100%;
            padding: 12px 24px;
            margin-top: 4px;
        }
        
        .login-card-links {
            display: flex;
            justify-content: space-between;
            margin-top: 14px;
            font-size: 13px;
        }
        
        .login-card-links a {
            color: var(--text-body);
        }
        
        .login-card-links a:hover {
            color: var(--primary);
        }
        
        .login-secure-tip {
            display: flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-body);
        }
        
        .login-secure-tip i {
            color: var(--success);
        }
        
        @media (max-width: 768px) {
            .hero-section {
                padding: 48px 0;
                min-height: auto;
            }
            .hero-title {
                font-size: 28px;
                text-align: center;
            }
            .hero-subtitle {
                text-align: center;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-points {
                justify-content: center;
            }
            .login-card {
                margin-left: auto;
                margin-right: auto;
                margin-top: 36px;
                max-width: 100%;
            }
            .hero-eyebrow {
                text-align: center;
                display: block;
                width: fit-content;
                margin-left: auto;
                margin-right: auto;
            }
        }
        
        /* ===== 三步上手 ===== */
        .steps-section {
            padding: 72px 0;
            background-color: #fff;
        }
        
        .section-header-centered {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 40px;
        }
        
        .step-item {
            position: relative;
            padding: 24px;
            text-align: left;
        }
        
        .step-item + .step-item {
            border-left: 1px solid var(--border);
        }
        
        .step-num {
            font-size: 20px;
            font-weight: 300;
            color: rgba(30, 95, 134, 0.35);
            display: block;
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }
        
        .step-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
            font-size: 20px;
        }
        
        .step-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        
        .step-item p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 0;
            line-height: 1.6;
        }
        
        .step-link {
            display: inline-block;
            margin-top: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
        }
        
        .step-link:hover {
            color: var(--accent);
        }
        
        @media (max-width: 768px) {
            .step-item {
                border-left: none;
                padding: 20px 0;
                display: flex;
                align-items: flex-start;
                gap: 16px;
            }
            .step-item + .step-item {
                border-left: none;
                border-top: 1px solid var(--border);
            }
            .step-icon {
                flex-shrink: 0;
                margin-bottom: 0;
            }
            .step-num {
                display: none;
            }
        }
        
        /* ===== 案例证明 ===== */
        .testimonial-section {
            padding: 72px 0;
            background-color: var(--bg);
        }
        
        .testimonial-item {
            background-color: #fff;
            border-radius: var(--radius-card);
            padding: 28px;
            border-left: 3px solid var(--accent);
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition);
            height: 100%;
        }
        
        .testimonial-item:hover {
            box-shadow: var(--shadow-hover);
        }
        
        .testimonial-text {
            font-size: 16px;
            color: #3b4d5f;
            line-height: 1.75;
            margin-bottom: 12px;
        }
        
        .testimonial-source {
            font-size: 13px;
            color: var(--text-body);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .testimonial-avatar {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }
        
        /* 徽标墙 */
        .brand-wall {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid var(--border);
            text-align: center;
        }
        
        .brand-wall-label {
            font-size: 13px;
            color: var(--text-body);
            margin-bottom: 16px;
        }
        
        .brand-wall-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 16px 36px;
        }
        
        .brand-wall-list span {
            font-size: 15px;
            font-weight: 500;
            color: #8B9DAE;
            padding: 6px 0;
            transition: color var(--transition);
            cursor: default;
        }
        
        .brand-wall-list span:hover {
            color: var(--primary);
        }
        
        /* ===== FAQ 手风琴 ===== */
        .faq-section {
            padding: 72px 0;
            background-color: #fff;
        }
        
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: 8px;
            background-color: var(--card-bg);
            box-shadow: var(--shadow-card);
            margin-bottom: 8px;
            border-left: 3px solid transparent;
            overflow: hidden;
        }
        
        .faq-accordion .accordion-item.active-item {
            border-left-color: var(--accent);
        }
        
        .faq-accordion .accordion-button {
            background-color: transparent;
            box-shadow: none;
            color: var(--text-dark);
            font-weight: 600;
            font-size: 16px;
            padding: 20px 24px;
            border-bottom: 1px solid transparent;
            text-align: left;
            position: relative;
        }
        
        .faq-accordion .accordion-button:not(.collapsed) {
            background-color: transparent;
            color: var(--text-dark);
            box-shadow: none;
        }
        
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--primary);
        }
        
        .faq-accordion .accordion-button::after {
            display: none;
        }
        
        .faq-accordion .accordion-button .faq-icon {
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--primary);
            transition: all var(--transition);
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
        }
        
        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            transform: translateY(-50%) rotate(180deg);
            background-color: var(--accent);
            color: #fff;
        }
        
        .faq-accordion .accordion-body {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.75;
            background-color: transparent;
        }
        
        .faq-accordion .accordion-button.collapsed {
            border-bottom-color: transparent;
        }
        
        /* ===== CTA 区 ===== */
        .cta-section {
            background-color: var(--primary);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -20px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.06);
            z-index: 0;
        }
        
        .cta-section .container {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        
        .cta-left {
            flex: 1;
            min-width: 280px;
        }
        
        .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        
        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 0;
            max-width: 420px;
        }
        
        .cta-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        
        .btn-white {
            display: inline-block;
            background-color: #fff;
            color: var(--primary);
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            border: 1px solid #fff;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            line-height: 1.4;
        }
        
        .btn-white:hover {
            background-color: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 126, 72, 0.3);
        }
        
        .cta-text-link {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            padding-bottom: 2px;
            transition: all var(--transition);
        }
        
        .cta-text-link:hover {
            color: #fff;
            border-bottom-color: #fff;
        }
        
        @media (max-width: 768px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-actions {
                width: 100%;
            }
            .btn-white {
                flex: 1;
                text-align: center;
            }
        }
        
        /* ===== 资讯列表 ===== */
        .news-section {
            padding: 72px 0;
            background-color: var(--bg);
        }
        
        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 28px;
        }
        
        .news-filter {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        
        .filter-tag {
            display: inline-block;
            padding: 4px 16px;
            border-radius: var(--radius-tag);
            background-color: transparent;
            border: 1px solid var(--border);
            font-size: 13px;
            color: var(--text-body);
            cursor: pointer;
            transition: all var(--transition);
        }
        
        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        
        .filter-tag.active {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        
        .news-card {
            background-color: var(--card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            height: 100%;
            overflow: hidden;
            border: 1px solid rgba(227, 234, 242, 0.6);
            display: flex;
            flex-direction: column;
        }
        
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        
        .news-thumb {
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background-color: var(--primary-light);
        }
        
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        
        .news-card:hover .news-thumb img {
            transform: scale(1.04);
        }
        
        .news-content {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        
        .news-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 4px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            width: fit-content;
            margin-bottom: 12px;
        }
        
        .news-content h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        
        .news-content h3 a {
            color: var(--text-dark);
        }
        
        .news-content h3 a:hover {
            color: var(--accent);
        }
        
        .news-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }
        
        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            border-top: 1px solid var(--border);
            padding-top: 12px;
            color: var(--text-body);
        }
        
        .news-meta time {
            color: #70889c;
        }
        
        .news-meta a {
            color: var(--primary);
            font-weight: 500;
        }
        
        .news-meta a:hover {
            color: var(--accent);
        }
        
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 24px;
            background-color: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
            color: var(--text-body);
            font-size: 15px;
        }
        
        @media (max-width: 768px) {
            .news-section {
                padding: 48px 0;
            }
            .news-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        
        /* ===== 页脚 ===== */
        .site-footer {
            background-color: #17293B;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 56px;
        }
        
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        
        .footer-brand-mark {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
        }
        
        .footer-brand-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }
        
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 260px;
        }
        
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        
        .footer-links li {
            margin-bottom: 8px;
        }
        
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
        }
        
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        
        .footer-contact li {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        
        .footer-contact li i {
            color: var(--accent);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }
        
        .footer-bottom {
            margin-top: 40px;
            padding: 18px 0;
            border-top: 1px solid #2A4055;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            text-align: center;
        }
        
        @media (max-width: 768px) {
            .site-footer {
                padding-top: 40px;
            }
        }
        
        /* ===== 通用按钮/标签状态 ===== */
        .btn:focus,
        .btn-primary-custom:focus,
        .btn-outline-custom:focus,
        .btn-white:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(30, 95, 134, 0.2);
        }
        
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        
        /* ===== 辅助类 ===== */
        .text-muted {
            color: var(--text-body) !important;
        }

/* roulang page: article */
:root{
    --brand:#1E5F86;
    --brand-dark:#174B6B;
    --brand-soft:#E8F1F8;
    --accent:#C97E48;
    --accent-soft:#FBF4EE;
    --bg:#F2F6FA;
    --card:#FFFFFF;
    --text:#1C2E40;
    --text-secondary:#556C82;
    --text-light:#98A8B8;
    --border:#E3EAF2;
    --success:#2E7D62;
    --danger:#B4442C;
    --footer-bg:#17293B;
    --footer-text:#8FA6BA;
    --footer-divider:#2A4055;
    --radius-card:12px;
    --radius-btn:8px;
    --radius-tag:16px;
    --radius-input:6px;
    --shadow-card:0 2px 8px rgba(30,95,134,.06);
    --shadow-hover:0 8px 24px rgba(30,95,134,.12);
    --transition:.2s ease;
}

*{
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
}

body{
    margin:0;
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:15px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
}

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

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

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

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

a:focus-visible,button:focus-visible,input:focus-visible{
    outline:3px solid rgba(30,95,134,.35);
    outline-offset:2px;
}

.container{
    max-width:1200px;
}

/* ===== 顶部信息条 ===== */
.top-bar{
    background:var(--brand);
    color:#ffffff;
    font-size:13px;
    height:36px;
}

.top-bar .container{
    height:100%;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.top-domain{
    color:rgba(255,255,255,.85);
    letter-spacing:.02em;
}

.top-actions{
    display:flex;
    align-items:center;
    gap:16px;
}

.top-actions a{
    color:rgba(255,255,255,.9);
    font-size:13px;
    line-height:1;
}

.top-actions a:hover{
    color:#ffffff;
}

.top-action-btn{
    border:1px solid rgba(255,255,255,.55);
    border-radius:4px;
    padding:4px 12px;
    transition:background var(--transition),border-color var(--transition);
}

.top-action-btn:hover{
    background:rgba(255,255,255,.12);
    border-color:#ffffff;
}

/* ===== 主导航 ===== */
.main-nav{
    background:var(--card);
    position:sticky;
    top:0;
    z-index:1030;
    border-bottom:1px solid var(--border);
    box-shadow:0 1px 4px rgba(30,95,134,.04);
}

.main-nav .navbar{
    min-height:72px;
    padding:0;
}

.navbar-brand{
    display:flex;
    align-items:center;
    gap:10px;
}

.brand-mark{
    width:38px;
    height:38px;
    background:var(--brand);
    color:#ffffff;
    border-radius:8px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:20px;
    font-weight:700;
    flex-shrink:0;
}

.brand-text{
    font-size:22px;
    font-weight:700;
    color:var(--text);
    letter-spacing:.01em;
}

.main-nav .nav-link{
    color:var(--text-secondary);
    font-size:15px;
    font-weight:500;
    padding:8px 16px;
    position:relative;
}

.main-nav .nav-link::after{
    content:'';
    position:absolute;
    left:16px;
    right:16px;
    bottom:3px;
    height:2px;
    background:var(--accent);
    border-radius:2px;
    transform:scaleX(0);
    transition:transform .25s ease;
}

.main-nav .nav-link:hover{
    color:var(--brand);
}

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

.main-nav .nav-link.active{
    color:var(--brand);
    font-weight:700;
}

.nav-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:38px;
    padding:0 20px;
    background:var(--brand);
    color:#ffffff;
    border-radius:var(--radius-btn);
    font-size:14px;
    font-weight:600;
    border:none;
    transition:background var(--transition),color var(--transition);
}

.nav-btn:hover{
    background:var(--accent);
    color:#ffffff;
}

.navbar-toggler{
    border:none;
    color:var(--brand);
    font-size:20px;
    padding:4px 8px;
}

.navbar-toggler:focus{
    box-shadow:none;
    outline:3px solid rgba(30,95,134,.25);
}

/* ===== 文章头部区 ===== */
.article-hero{
    position:relative;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    padding:56px 0 48px;
}

.article-hero::before{
    content:'';
    position:absolute;
    inset:0;
    background:rgba(242,246,250,.9);
}

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

.cms-breadcrumb{
    font-size:14px;
    color:var(--text-secondary);
    margin-bottom:20px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
}

.cms-breadcrumb a{
    color:var(--text-secondary);
}

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

.cms-breadcrumb i{
    font-size:10px;
    margin:0 8px;
    color:var(--text-light);
}

.cms-breadcrumb .current{
    color:var(--text);
    font-weight:500;
    max-width:260px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}

.article-title{
    font-size:34px;
    font-weight:700;
    color:var(--text);
    line-height:1.3;
    margin:0 0 16px;
    letter-spacing:.01em;
    max-width:820px;
}

.cms-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:12px;
    color:var(--text-secondary);
    font-size:14px;
}

.meta-category,
.meta-tag{
    display:inline-block;
    background:rgba(30,95,134,.1);
    color:var(--brand);
    border-radius:4px;
    padding:2px 12px;
    font-size:13px;
    font-weight:500;
}

.meta-date i{
    margin-right:4px;
    font-size:13px;
}

/* ===== 正文阅读区 ===== */
.article-body-section{
    padding:48px 0 64px;
}

.article-card{
    background:var(--card);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    border:1px solid var(--border);
    padding:40px 48px;
    max-width:860px;
    margin:0 auto;
}

.article-content{
    max-width:70ch;
    margin:0 auto;
    font-size:16px;
    line-height:1.8;
    color:#2A3D52;
    word-wrap:break-word;
}

.article-content > *:first-child{
    margin-top:0;
}

.article-content h2{
    font-size:26px;
    font-weight:700;
    color:var(--text);
    margin:40px 0 16px;
    padding-bottom:12px;
    border-bottom:2px solid var(--border);
    line-height:1.4;
}

.article-content h3{
    font-size:20px;
    font-weight:600;
    color:var(--text);
    margin:32px 0 12px;
    line-height:1.5;
}

.article-content p{
    margin:0 0 20px;
}

.article-content ul,
.article-content ol{
    margin:0 0 20px;
    padding-left:1.5em;
}

.article-content li{
    margin-bottom:8px;
}

.article-content blockquote{
    border-left:4px solid var(--accent);
    background:var(--accent-soft);
    padding:16px 20px;
    margin:24px 0;
    border-radius:0 8px 8px 0;
    color:var(--text-secondary);
    font-size:15px;
}

.article-content code{
    background:#F0F4F8;
    border-radius:4px;
    padding:2px 6px;
    font-size:14px;
    color:var(--brand);
    font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
}

.article-content pre{
    background:var(--footer-bg);
    color:#E8F1F8;
    border-radius:8px;
    padding:20px;
    overflow-x:auto;
    margin:24px 0;
    line-height:1.6;
}

.article-content pre code{
    background:none;
    color:inherit;
    padding:0;
    font-size:14px;
}

.article-content img{
    max-width:100%;
    border-radius:8px;
    margin:16px 0;
}

.article-content table{
    width:100%;
    border-collapse:collapse;
    margin:24px 0;
    font-size:14px;
}

.article-content th,
.article-content td{
    border:1px solid var(--border);
    padding:10px 14px;
    text-align:left;
}

.article-content th{
    background:#F0F6FA;
    font-weight:600;
    color:var(--text);
}

.article-content a{
    border-bottom:1px solid rgba(30,95,134,.3);
}

.article-content a:hover{
    border-bottom-color:var(--accent);
}

.article-figure{
    text-align:center;
    margin:40px 0 0;
}

.article-figure img{
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    max-width:100%;
    height:auto;
}

.article-pager{
    display:flex;
    justify-content:space-between;
    gap:16px;
    margin-top:40px;
    padding-top:24px;
    border-top:1px solid var(--border);
}

.article-pager a{
    color:var(--text-secondary);
    font-size:14px;
    padding:8px 16px;
    border:1px solid var(--border);
    border-radius:var(--radius-btn);
    transition:all var(--transition);
    display:inline-flex;
    align-items:center;
    gap:6px;
}

.article-pager a:hover{
    color:var(--brand);
    border-color:var(--brand);
    background:#F0F6FA;
}

.article-notfound{
    text-align:center;
    padding:80px 20px;
}

.article-notfound h2{
    font-size:28px;
    font-weight:700;
    color:var(--text);
    margin-bottom:12px;
}

.article-notfound p{
    color:var(--text-secondary);
    margin-bottom:24px;
}

/* ===== 相关推荐 ===== */
.related-section{
    background:var(--brand-soft);
    padding:64px 0;
}

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

.section-head h2{
    font-size:28px;
    font-weight:700;
    color:var(--text);
    margin:0 0 8px;
}

.section-head p{
    color:var(--text-secondary);
    font-size:14px;
    margin:0;
}

.news-card{
    background:var(--card);
    border:1px solid var(--border);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .25s ease,box-shadow .25s ease;
    height:100%;
    display:flex;
    flex-direction:column;
}

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

.news-card-img{
    display:block;
    width:100%;
    aspect-ratio:16/9;
    overflow:hidden;
    background:#EAF0F6;
}

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

.news-card:hover .news-card-img img{
    transform:scale(1.03);
}

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

.badge-tag{
    display:inline-block;
    background:var(--brand-soft);
    color:var(--brand);
    font-size:13px;
    border-radius:4px;
    padding:2px 10px;
    margin-bottom:12px;
    align-self:flex-start;
}

.news-card-body h3{
    font-size:18px;
    font-weight:600;
    line-height:1.5;
    margin:0 0 8px;
}

.news-card-body h3 a{
    color:var(--text);
    transition:color var(--transition);
}

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

.news-card-body p{
    font-size:14px;
    color:var(--text-secondary);
    line-height:1.7;
    margin:0 0 16px;
    flex:1;
}

.news-meta{
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-size:13px;
    color:var(--text-light);
}

.news-meta a{
    color:var(--brand);
    font-weight:500;
    transition:color var(--transition);
}

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

.news-meta i{
    margin-right:4px;
}

/* ===== 页脚 ===== */
.site-footer{
    background:var(--footer-bg);
    color:var(--footer-text);
    padding:64px 0 0;
}

.footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:16px;
}

.footer-brand-mark{
    width:34px;
    height:34px;
    background:var(--accent);
    color:#ffffff;
    border-radius:8px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:18px;
    font-weight:700;
    flex-shrink:0;
}

.footer-brand-text{
    font-size:20px;
    font-weight:700;
    color:#ffffff;
    letter-spacing:.01em;
}

.footer-desc{
    font-size:14px;
    line-height:1.8;
    color:var(--footer-text);
    margin:0;
}

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

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

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

.footer-links a{
    color:var(--footer-text);
    font-size:14px;
    transition:color var(--transition);
}

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

.footer-contact li{
    font-size:14px;
    margin-bottom:8px;
    color:var(--footer-text);
}

.footer-contact i{
    margin-right:8px;
    color:var(--accent);
    width:16px;
    text-align:center;
}

.footer-bottom{
    border-top:1px solid var(--footer-divider);
    margin-top:48px;
    padding:20px 0;
    font-size:13px;
    color:#6C8398;
    text-align:center;
}

/* ===== 响应式 ===== */
@media (max-width:991.98px){
    .main-nav .navbar{
        min-height:60px;
    }

    .main-nav .nav-link{
        padding:12px 0;
        border-bottom:1px solid #F0F4F8;
    }

    .main-nav .nav-link::after{
        display:none;
    }

    .nav-btn{
        margin:12px 0;
        height:40px;
        width:100%;
    }

    .navbar-collapse{
        padding:12px 0;
    }

    .navbar-nav{
        width:100%;
    }
}

@media (max-width:767.98px){
    .top-actions a:first-child{
        display:none;
    }

    .article-hero{
        padding:40px 0 32px;
    }

    .article-title{
        font-size:26px;
    }

    .article-card{
        padding:24px 20px;
    }

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

    .article-content h2{
        font-size:22px;
    }

    .article-content h3{
        font-size:18px;
    }

    .article-pager{
        flex-direction:column;
    }

    .article-pager a{
        justify-content:center;
    }

    .related-section{
        padding:48px 0;
    }

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

    .site-footer{
        padding-top:48px;
    }

    .footer-bottom{
        margin-top:32px;
    }
}

@media (max-width:575.98px){
    .article-title{
        font-size:22px;
    }

    .cms-breadcrumb{
        font-size:13px;
        margin-bottom:16px;
    }

    .cms-breadcrumb i{
        margin:0 5px;
    }

    .cms-meta{
        gap:8px;
        font-size:13px;
    }

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

    .news-card-body h3{
        font-size:16px;
    }
}

/* roulang page: category1 */
:root {
            --primary: #1E5F86;
            --primary-dark: #164A6B;
            --bg: #F2F6FA;
            --card-bg: #FFFFFF;
            --text: #1C2E40;
            --text-secondary: #556C82;
            --border: #E3EAF2;
            --accent: #C97E48;
            --accent-dark: #B96E38;
            --success: #2E7D62;
            --error: #B4442C;
            --footer-bg: #17293B;
            --footer-divider: #2A4055;
            --radius-lg: 12px;
            --radius-sm: 8px;
            --radius-pill: 16px;
            --shadow-sm: 0 2px 8px rgba(30, 95, 134, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 95, 134, 0.12);
            --transition: all 0.2s ease;
        }

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

        html {
            min-height: 100%;
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* 顶部信息条 */
        .top-bar {
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            min-height: 36px;
            display: flex;
            align-items: center;
        }

        .top-bar a {
            color: rgba(255, 255, 255, 0.92);
            margin-left: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            border-radius: 16px;
            padding: 3px 12px;
            line-height: 1.5;
        }

        .top-bar a:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .top-bar .top-domain {
            letter-spacing: 0.4px;
        }

        /* 主导航 */
        .main-nav {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 1px 8px rgba(30, 95, 134, 0.04);
        }

        .main-nav .navbar {
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .navbar-brand {
            padding: 0;
            margin-right: 24px;
        }

        .brand-mark {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
        }

        .brand-text {
            font-size: 21px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 1px;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 10px 16px;
            position: relative;
            border-radius: 6px;
        }

        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }

        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 5px;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.2s ease;
            border-radius: 2px;
        }

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

        .nav-btn {
            background: var(--primary);
            color: #fff;
            padding: 9px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition);
            margin-left: 6px;
        }

        .nav-btn:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 126, 72, 0.25);
        }

        .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 24px;
            padding: 4px 8px;
            box-shadow: none !important;
        }

        /* 页面横幅 */
        .page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 76px 0 88px;
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(23, 41, 59, 0.78);
        }

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

        .page-banner .breadcrumb-custom {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.82);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }

        .page-banner .breadcrumb-custom a:hover {
            color: #fff;
            border-color: #fff;
        }

        .page-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .banner-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            letter-spacing: 1px;
        }

        .banner-sub {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin-bottom: 0;
        }

        /* 主体区域 */
        .category-main {
            padding: 56px 0 72px;
        }

        .cat-sidebar {
            margin-bottom: 24px;
        }

        .side-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px;
            margin-bottom: 24px;
            border: 1px solid var(--border);
        }

        .side-card.sticky-side {
            position: sticky;
            top: 96px;
        }

        .side-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-title i {
            color: var(--accent);
        }

        .side-nav {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-nav li {
            margin-bottom: 4px;
        }

        .side-nav li a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 14px;
            border-radius: 8px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .side-nav li a i {
            font-size: 12px;
            opacity: 0.6;
            transition: var(--transition);
        }

        .side-nav li a:hover,
        .side-nav li a.active {
            background: #E8F1F8;
            color: var(--primary);
        }

        .side-nav li a:hover i,
        .side-nav li a.active i {
            opacity: 1;
            transform: translateX(3px);
            color: var(--accent);
        }

        .side-support {
            border-radius: var(--radius-lg);
            background: #E8F1F8;
            padding: 18px;
        }

        .side-support h6 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .side-support p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .side-support .support-line {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-support .support-line i {
            color: var(--primary);
            width: 16px;
        }

        .content-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            padding: 28px;
            margin-bottom: 28px;
        }

        .content-card:last-child {
            margin-bottom: 0;
        }

        .cat-section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .cat-section-title .title-icon {
            width: 40px;
            height: 40px;
            background: #E8F1F8;
            color: var(--primary);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .cat-section-title .title-line {
            flex: 1;
            height: 1px;
            background: var(--border);
            margin-left: 4px;
        }

        /* 流程概览 */
        .flow-step {
            text-align: center;
            padding: 20px 12px;
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }

        .flow-step:hover {
            background: #F8FAFD;
            box-shadow: var(--shadow-hover);
        }

        .flow-num {
            font-size: 26px;
            font-weight: 700;
            color: #C5D3E0;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .flow-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: #E8F1F8;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin: 0 auto 14px;
        }

        .flow-step h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .flow-step p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* 检查清单 */
        .check-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .check-list li {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid #F1F5F9;
            font-size: 15px;
            color: var(--text);
            line-height: 1.6;
        }

        .check-list li:last-child {
            border-bottom: none;
        }

        .check-list li i {
            color: var(--success);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* 步骤详情 */
        .step-guide {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            margin-bottom: 16px;
        }

        .step-guide .step-marker {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .step-guide .step-body {
            flex: 1;
        }

        .step-guide .step-body h6 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .step-guide .step-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .step-img {
            border-radius: var(--radius-lg);
            width: 100%;
            object-fit: cover;
            box-shadow: var(--shadow-sm);
        }

        .security-tip {
            display: flex;
            gap: 14px;
            background: #FFF8F2;
            border-left: 3px solid var(--accent);
            border-radius: 0 10px 10px 0;
            padding: 16px 18px;
            margin-top: 20px;
        }

        .security-tip i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
        }

        .security-tip p {
            font-size: 14px;
            color: var(--text);
            margin: 0;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-wrap .accordion-item {
            border: 1px solid var(--border);
            border-radius: 8px !important;
            margin-bottom: 8px;
            overflow: hidden;
            box-shadow: none;
        }

        .faq-wrap .accordion-item:last-child {
            margin-bottom: 0;
        }

        .faq-wrap .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 16px 20px;
            background: #fff;
            box-shadow: none;
            border-radius: 8px !important;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            background: #F8FAFD;
            color: var(--primary);
            border-left-color: var(--accent);
            box-shadow: none;
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(30, 95, 134, 0.15);
            outline: none;
        }

        .faq-wrap .accordion-button::after {
            background-size: 16px;
            filter: none;
            width: 18px;
            height: 18px;
        }

        .faq-wrap .accordion-body {
            padding: 16px 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            background: #fff;
        }

        /* CTA */
        .cta-box {
            background: var(--primary);
            color: #fff;
            border-radius: 16px;
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            box-shadow: 0 12px 28px rgba(30, 95, 134, 0.22);
            margin-top: 32px;
        }

        .cta-box h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 6px;
        }

        .cta-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin: 0;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 14px;
        }

        .cta-btn-primary {
            background: var(--accent);
            color: #fff;
            padding: 12px 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            border: 1px solid var(--accent);
        }

        .cta-btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 18px rgba(201, 126, 72, 0.35);
        }

        .cta-link {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.5);
            padding-bottom: 2px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-link:hover {
            color: #fff;
            border-color: #fff;
        }

        /* 页脚 */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.78);
            padding: 48px 0 0;
        }

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

        .site-footer .footer-brand-mark {
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .site-footer .footer-brand-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
        }

        .site-footer .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
            max-width: 92%;
        }

        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .site-footer .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .site-footer .footer-links li {
            margin-bottom: 10px;
            font-size: 14px;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.72);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .site-footer .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .site-footer .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
        }

        .site-footer .footer-contact i {
            color: var(--accent);
            width: 18px;
            margin-top: 4px;
        }

        .site-footer .footer-bottom {
            border-top: 1px solid var(--footer-divider);
            padding: 18px 0;
            margin-top: 36px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .main-nav .navbar {
                min-height: 64px;
            }

            .navbar-collapse {
                padding-top: 12px;
                padding-bottom: 12px;
            }

            .navbar-nav .nav-link {
                padding: 10px 8px;
            }

            .nav-btn {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }

            .navbar-nav .nav-link::after {
                display: none;
            }

            .side-card.sticky-side {
                position: static;
            }
        }

        @media (max-width: 767.98px) {
            .top-bar .top-links a span {
                display: none;
            }

            .top-bar .top-links a {
                font-size: 12px;
                padding: 3px 10px;
            }

            .brand-mark {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }

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

            .page-banner {
                padding: 52px 0 56px;
            }

            .banner-title {
                font-size: 26px;
            }

            .banner-sub {
                font-size: 15px;
            }

            .category-main {
                padding: 40px 0 48px;
            }

            .content-card {
                padding: 20px;
            }

            .cat-section-title {
                font-size: 19px;
            }

            .step-guide {
                flex-direction: column;
                gap: 10px;
            }

            .cta-box {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-btn-primary {
                flex: 1;
                justify-content: center;
            }

            .site-footer {
                padding-top: 36px;
            }

            .site-footer .footer-bottom {
                text-align: center;
                line-height: 1.7;
            }
        }

        @media (max-width: 575.98px) {
            .top-bar .top-domain {
                font-size: 12px;
            }

            .navbar-brand {
                margin-right: 0;
            }

            .brand-text {
                letter-spacing: 0.5px;
            }

            .flow-step {
                margin-bottom: 16px;
            }

            .flow-step:hover {
                background: transparent;
                box-shadow: none;
            }

            .content-card {
                padding: 18px;
            }

            .banner-title {
                font-size: 23px;
            }

            .cta-box {
                border-radius: 12px;
            }
        }

/* roulang page: category2 */
:root {
            --clr-primary: #1E5F86;
            --clr-primary-dark: #174B6D;
            --clr-accent: #C97E48;
            --clr-accent-dark: #B06A38;
            --clr-bg: #F2F6FA;
            --clr-card: #FFFFFF;
            --clr-text: #1C2E40;
            --clr-text-secondary: #556C82;
            --clr-border: #E3EAF2;
            --clr-success: #2E7D62;
            --clr-warning: #B4442C;
            --clr-dark-bg: #17293B;
            --clr-dark-border: #2A4055;
            --clr-input-border: #C5D3E0;
            --clr-placeholder: #A0AFC0;
            --clr-light-blue: #E8F1F8;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-tag: 16px;
            --radius-input: 6px;
            --shadow-card: 0 2px 8px rgba(30, 95, 134, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 95, 134, 0.12);
            --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 90px;
        }

        body {
            margin: 0;
            background: var(--clr-bg);
            color: var(--clr-text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--clr-primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        .container {
            max-width: 1200px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: var(--clr-primary);
            color: #fff;
            font-size: 13px;
            height: 36px;
            display: flex;
            align-items: center;
        }

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

        .topbar .topbar-domain {
            letter-spacing: 0.3px;
            opacity: 0.9;
        }

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

        .topbar .topbar-link {
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            transition: color 0.2s;
        }

        .topbar .topbar-link:hover {
            color: #fff;
        }

        .topbar .topbar-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 14px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            color: #fff;
            font-size: 13px;
            line-height: 1.6;
            transition: background 0.2s, border-color 0.2s;
        }

        .topbar .topbar-btn:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: var(--clr-card);
            border-bottom: 1px solid var(--clr-border);
            box-shadow: 0 1px 4px rgba(23, 41, 59, 0.04);
            position: sticky;
            top: 0;
            z-index: 1030;
        }

        .main-nav .navbar {
            min-height: 70px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .main-nav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }

        .main-nav .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--clr-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .main-nav .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--clr-text);
            letter-spacing: 0.5px;
        }

        .main-nav .navbar-toggler {
            border: none;
            padding: 6px 10px;
            color: var(--clr-primary);
            font-size: 20px;
            box-shadow: none;
            background: var(--clr-light-blue);
            border-radius: 8px;
        }

        .main-nav .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(30, 95, 134, 0.15);
        }

        .main-nav .nav-item {
            position: relative;
            margin-left: 2px;
        }

        .main-nav .nav-link {
            padding: 24px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--clr-text-secondary);
            position: relative;
            white-space: nowrap;
        }

        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 12px;
            height: 2px;
            border-radius: 2px;
            background: var(--clr-accent);
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.25s ease;
        }

        .main-nav .nav-link:hover {
            color: var(--clr-primary);
        }

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

        .main-nav .nav-link.active {
            color: var(--clr-primary);
            font-weight: 600;
        }

        .main-nav .nav-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 40px;
            padding: 0 22px;
            border-radius: var(--radius-btn);
            background: var(--clr-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            transition: background 0.2s ease;
            white-space: nowrap;
            margin-left: 8px;
        }

        .main-nav .nav-btn:hover {
            background: var(--clr-accent);
            color: #fff;
        }

        /* ===== 页面横幅 ===== */
        .page-banner {
            background-color: var(--clr-primary);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 72px 0 76px;
            color: #fff;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(30, 95, 134, 0.8);
        }

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

        .breadcrumb-nav {
            font-size: 14px;
            margin-bottom: 22px;
            color: rgba(255, 255, 255, 0.75);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s;
        }

        .breadcrumb-nav a:hover {
            color: #fff;
        }

        .breadcrumb-nav .separator {
            opacity: 0.6;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 20px;
            padding: 5px 16px;
            font-size: 13px;
            color: #fff;
            margin-bottom: 18px;
        }

        .page-banner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .page-banner .banner-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 640px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== 主体两栏 ===== */
        .category-main {
            padding: 64px 0 80px;
        }

        .cat-section {
            margin-bottom: 56px;
        }

        .cat-section:last-child {
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 28px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--clr-primary);
            background: var(--clr-light-blue);
            border-radius: 16px;
            padding: 3px 14px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--clr-text);
            line-height: 1.4;
            margin: 0;
        }

        .section-desc {
            font-size: 15px;
            color: var(--clr-text-secondary);
            margin-top: 8px;
            max-width: 680px;
            line-height: 1.75;
        }

        /* ===== 侧边导航 ===== */
        .side-nav-wrap {
            position: sticky;
            top: 96px;
        }

        .side-nav {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            margin-bottom: 24px;
        }

        .side-nav-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--clr-text-secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--clr-border);
            margin-bottom: 14px;
        }

        .side-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-nav li+li {
            border-top: 1px solid var(--clr-bg);
        }

        .side-nav a {
            display: block;
            padding: 10px 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--clr-text-secondary);
            transition: color 0.2s, padding-left 0.2s;
            border-radius: 4px;
        }

        .side-nav a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
            color: var(--clr-primary);
            transition: color 0.2s;
        }

        .side-nav a:hover {
            color: var(--clr-primary);
            padding-left: 8px;
        }

        .side-card {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
            text-align: center;
        }

        .side-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--clr-light-blue);
            color: var(--clr-primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

        .side-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--clr-text);
            margin-bottom: 8px;
        }

        .side-card p {
            font-size: 13px;
            color: var(--clr-text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .side-card .btn {
            width: 100%;
            min-height: 42px;
            font-size: 14px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            font-weight: 600;
            min-height: 44px;
            padding: 0 24px;
            border: none;
            transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

        .btn-primary:hover {
            background: var(--clr-accent);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 126, 72, 0.25);
        }

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

        .btn-outline-primary:hover {
            background: var(--clr-light-blue);
            color: var(--clr-primary);
        }

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

        .btn-accent:hover {
            background: var(--clr-accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(201, 126, 72, 0.3);
        }

        .btn:focus-visible,
        .nav-link:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(30, 95, 134, 0.3);
            outline-offset: 2px;
        }

        /* ===== 概览区 ===== */
        .overview-card {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .overview-card .row {
            align-items: center;
        }

        .overview-img {
            height: 100%;
            min-height: 260px;
            object-fit: cover;
            width: 100%;
        }

        .overview-content {
            padding: 32px;
        }

        .overview-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--clr-text);
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .overview-content .lead {
            font-size: 14px;
            color: var(--clr-text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .overview-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .overview-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--clr-bg);
            font-size: 14px;
            color: var(--clr-text);
            line-height: 1.6;
        }

        .overview-list li:last-child {
            border-bottom: none;
        }

        .overview-list li i {
            color: var(--clr-success);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== 防护要点卡片 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .tip-card {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px 26px;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .tip-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--clr-light-blue);
            color: var(--clr-primary);
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }

        .tip-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--clr-text);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .tip-card p {
            font-size: 14px;
            color: var(--clr-text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        /* ===== 防护流程 ===== */
        .process-card {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 36px 32px;
        }

        .process-item {
            position: relative;
            padding: 0 0 36px 76px;
        }

        .process-item:last-child {
            padding-bottom: 0;
        }

        .process-item::before {
            content: '';
            position: absolute;
            left: 25px;
            top: 54px;
            bottom: 0;
            width: 2px;
            background: var(--clr-border);
            border-radius: 2px;
        }

        .process-item:last-child::before {
            display: none;
        }

        .process-badge {
            position: absolute;
            left: 0;
            top: 0;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--clr-light-blue);
            color: var(--clr-primary);
            font-size: 19px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 3px solid var(--clr-card);
            box-shadow: 0 0 0 2px var(--clr-border);
            z-index: 1;
        }

        .process-step {
            font-size: 12px;
            font-weight: 700;
            color: var(--clr-accent);
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .process-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--clr-text);
            margin: 4px 0 6px;
            line-height: 1.5;
        }

        .process-content p {
            font-size: 14px;
            color: var(--clr-text-secondary);
            margin: 0;
            line-height: 1.75;
            max-width: 520px;
        }

        /* ===== 安全机制数据 ===== */
        .stats-area {
            background: var(--clr-primary);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .stats-area::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: -1;
        }

        .stat-item {
            padding: 12px 10px;
        }

        .stat-icon {
            width: 50px;
            height: 50px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }

        .stat-value {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 8px 24px;
        }

        .faq-item {
            border-bottom: 1px solid var(--clr-border);
            padding: 6px 0;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 16px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--clr-text);
            text-align: left;
            cursor: pointer;
            transition: color 0.2s;
            min-height: auto;
        }

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

        .faq-question:focus {
            outline: none;
            color: var(--clr-primary);
        }

        .faq-question i {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--clr-light-blue);
            color: var(--clr-primary);
            font-size: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.2s, color 0.2s;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            background: var(--clr-primary);
            color: #fff;
        }

        .faq-item.active {
            border-left: 3px solid var(--clr-accent);
            padding-left: 14px;
        }

        .faq-answer {
            padding: 0 0 18px;
            font-size: 14px;
            color: var(--clr-text-secondary);
            line-height: 1.75;
            max-width: 620px;
        }

        /* ===== CTA ===== */
        .cta-box {
            background: var(--clr-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-hover);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-box h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--clr-text);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .cta-box p {
            font-size: 14px;
            color: var(--clr-text-secondary);
            margin: 0;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .cta-actions .cta-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--clr-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-actions .cta-link:hover {
            color: var(--clr-accent);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-dark-bg);
            color: #fff;
            padding: 64px 0 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--clr-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-brand-text {
            font-size: 19px;
            font-weight: 700;
        }

        .footer-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.75;
            margin: 0;
            max-width: 340px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .footer-links a i {
            font-size: 12px;
            margin-right: 4px;
        }

        .footer-contact li {
            color: rgba(255, 255, 255, 0.68);
            font-size: 14px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--clr-dark-border);
            margin-top: 48px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            text-align: center;
            line-height: 1.6;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .main-nav .navbar-collapse {
                padding: 14px 0 18px;
                border-top: 1px solid var(--clr-border);
                margin-top: 6px;
            }

            .main-nav .nav-link {
                padding: 12px 0;
                border-bottom: 1px solid var(--clr-bg);
            }

            .main-nav .nav-link::after {
                display: none;
            }

            .main-nav .nav-link.active {
                color: var(--clr-primary);
            }

            .main-nav .nav-btn {
                margin: 12px 0 0;
                width: 100%;
                min-height: 44px;
            }

            .side-nav-wrap {
                position: static;
                margin-top: 32px;
            }

            .category-main {
                padding: 48px 0 60px;
            }
        }

        @media (max-width: 767.98px) {
            .page-banner {
                padding: 52px 0 56px;
            }

            .page-banner h1 {
                font-size: 27px;
            }

            .page-banner .banner-desc {
                font-size: 15px;
            }

            .category-main {
                padding: 40px 0 48px;
            }

            .section-title {
                font-size: 22px;
            }

            .overview-content {
                padding: 24px;
            }

            .overview-img {
                min-height: 200px;
            }

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

            .process-card {
                padding: 28px 22px;
            }

            .process-item {
                padding: 0 0 28px 68px;
            }

            .process-item::before {
                left: 23px;
                top: 50px;
            }

            .process-badge {
                width: 46px;
                height: 46px;
                font-size: 17px;
            }

            .stats-area {
                padding: 32px 24px;
            }

            .faq-list {
                padding: 6px 18px;
            }

            .cta-box {
                padding: 30px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
            }

            .topbar .topbar-actions .topbar-link {
                display: none;
            }

            .site-footer {
                padding-top: 48px;
            }
        }

        @media (max-width: 575.98px) {
            .main-nav .brand-text {
                font-size: 18px;
            }
        }