/* roulang page: index */
:root {
            --primary: #0b2b5a;
            --primary-dark: #071d40;
            --primary-light: #eef3fb;
            --accent: #f5a524;
            --accent-dark: #d88c00;
            --success: #16a34a;
            --body-bg: #f6f8fc;
            --card-bg: #ffffff;
            --text: #1f2937;
            --text-muted: #6b7280;
            --border: #e6eaf2;
            --radius: 14px;
            --radius-lg: 24px;
            --shadow: 0 12px 30px rgba(11, 43, 90, .08);
            --shadow-hover: 0 18px 40px rgba(11, 43, 90, .14);
            --transition: .25s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
        }

        .container {
            max-width: 1200px;
        }

        .section {
            padding: 84px 0;
        }

        .section-head {
            max-width: 760px;
            margin-bottom: 44px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .82rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: .5px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-muted {
            background: #eef2f8;
        }

        /* Header / Nav */
        .site-header {
            background: #fff;
            box-shadow: 0 2px 12px rgba(7, 29, 64, .05);
        }

        .topline {
            background: var(--primary);
            color: rgba(255, 255, 255, .92);
            font-size: .85rem;
            padding: 7px 0;
        }

        .topline .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .topline i {
            color: var(--accent);
            margin-right: 6px;
        }

        .topline .topline-note {
            color: rgba(255, 255, 255, .75);
        }

        .custom-navbar {
            padding: 0;
            background: #fff;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary);
            padding: 14px 0;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .brand-text {
            color: var(--primary);
            font-size: 1.25rem;
            letter-spacing: .3px;
        }

        .custom-navbar .navbar-nav {
            gap: 4px;
        }

        .custom-navbar .navbar-nav .nav-link {
            font-weight: 600;
            font-size: .95rem;
            color: var(--text);
            padding: 18px 14px;
            border-radius: 10px;
            transition: all var(--transition);
            position: relative;
        }

        .custom-navbar .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 10px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
            opacity: 0;
            transform: scaleX(.4);
            transition: all var(--transition);
        }

        .custom-navbar .navbar-nav .nav-link:hover,
        .custom-navbar .navbar-nav .nav-link.active {
            color: var(--primary);
        }

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

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(11, 43, 90, .15);
        }

        .nav-extra {
            gap: 14px;
            flex-wrap: wrap;
            padding: 10px 0;
        }

        .hot-keywords {
            font-size: .88rem;
            align-items: center;
            gap: 8px;
        }

        .hot-label {
            color: var(--text-muted);
            font-weight: 600;
        }

        .hot-keywords a {
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: .82rem;
            transition: all var(--transition);
        }

        .hot-keywords a:hover {
            background: var(--accent);
            color: #fff;
        }

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

        .search-form .form-control {
            width: 220px;
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 42px 8px 18px;
            font-size: .88rem;
            background: #f7f9fc;
            transition: all var(--transition);
        }

        .search-form .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 165, 36, .15);
            background: #fff;
        }

        .btn-search {
            position: absolute;
            right: 4px;
            border: 0;
            background: transparent;
            color: var(--primary);
            padding: 6px 10px;
            border-radius: 50%;
            transition: all var(--transition);
        }

        .btn-search:hover {
            background: var(--primary-light);
            color: var(--accent);
        }

        /* Buttons */
        .btn-cta {
            background: var(--accent);
            border: 2px solid var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 13px 30px;
            border-radius: 50px;
            box-shadow: 0 8px 20px rgba(245, 165, 36, .32);
            transition: all var(--transition);
        }

        .btn-cta:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(216, 140, 0, .38);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .85);
            color: #fff;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: 50px;
            transition: all var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            border-color: #fff;
            transform: translateY(-3px);
        }

        .btn-line {
            border: 1px solid var(--border);
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 50px;
            transition: all var(--transition);
        }

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

        .btn-more {
            color: var(--primary);
            font-weight: 600;
            font-size: .9rem;
            transition: all var(--transition);
        }

        .btn-more i {
            transition: transform var(--transition);
        }

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

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

        /* Hero */
        .hero {
            min-height: 600px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            display: flex;
            align-items: center;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(7, 29, 64, .94) 0%, rgba(7, 29, 64, .78) 45%, rgba(7, 29, 64, .35) 100%);
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .25);
            backdrop-filter: blur(6px);
            color: #fff;
            font-size: .88rem;
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 50px;
            margin-bottom: 22px;
            letter-spacing: .5px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5.5vw, 3.6rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }

        .hero h1 span {
            color: var(--accent);
            display: block;
            font-size: .55em;
            font-weight: 600;
            letter-spacing: 2px;
            margin-top: 8px;
        }

        .hero-desc {
            font-size: 1.08rem;
            line-height: 1.8;
            max-width: 680px;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 42px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
        }

        .stat-item {
            border-left: 3px solid var(--accent);
            padding-left: 18px;
        }

        .stat-item .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: .85rem;
            color: rgba(255, 255, 255, .75);
        }

        /* Feature Cards */
        .card-feature {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 34px 28px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .card-feature:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .feature-icon {
            width: 62px;
            height: 62px;
            border-radius: 18px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.7rem;
            margin-bottom: 20px;
            transition: all var(--transition);
        }

        .card-feature:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }

        .card-feature h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .card-feature p {
            color: var(--text-muted);
            font-size: .95rem;
            margin-bottom: 18px;
        }

        .card-feature .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
        }

        /* Category Cards */
        .category-card {
            border: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .category-cover {
            position: relative;
            overflow: hidden;
        }

        .category-cover img {
            width: 100%;
            height: 230px;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .category-card:hover .category-cover img {
            transform: scale(1.06);
        }

        .category-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 29, 64, 0) 40%, rgba(7, 29, 64, .55) 100%);
        }

        .category-body {
            padding: 24px;
            background: #fff;
        }

        .category-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        .category-body p {
            color: var(--text-muted);
            font-size: .92rem;
            margin-bottom: 16px;
        }

        .category-body .text-link {
            font-weight: 700;
            color: var(--primary);
            font-size: .9rem;
        }

        .category-body .text-link i {
            transition: transform var(--transition);
        }

        .category-body .text-link:hover {
            color: var(--accent);
        }

        .category-body .text-link:hover i {
            transform: translateX(4px);
        }

        /* News Cards */
        .news-card {
            border: 0;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            background: #fff;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
        }

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

        .news-card .card-body {
            padding: 24px;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 14px;
            gap: 10px;
        }

        .news-meta .badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
        }

        .news-date {
            color: var(--text-muted);
            font-size: .82rem;
            white-space: nowrap;
        }

        .news-title {
            font-size: 1.05rem;
            line-height: 1.5;
            margin-bottom: 10px;
        }

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

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

        .news-desc {
            color: var(--text-muted);
            font-size: .92rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .card-footer {
            background: #fff;
            border-top: 1px solid var(--border);
            padding: 16px 24px;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            background: #fff;
            border: 2px dashed var(--border);
            border-radius: var(--radius-lg);
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* Steps */
        .steps-section {
            background: var(--primary-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            color: #fff;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(7, 29, 64, .88);
        }

        .steps-section .container {
            position: relative;
            z-index: 2;
        }

        .steps-section .section-head h2 {
            color: #fff;
        }

        .steps-section .section-head p {
            color: rgba(255, 255, 255, .8);
        }

        .step-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            backdrop-filter: blur(6px);
            border-radius: var(--radius-lg);
            padding: 30px;
            height: 100%;
            transition: all var(--transition);
        }

        .step-card:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-6px);
        }

        .step-num {
            display: inline-block;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .step-card h3 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .step-card p {
            color: rgba(255, 255, 255, .8);
            font-size: .92rem;
            margin-bottom: 0;
        }

        /* Guide Cards */
        .guide-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            height: 100%;
        }

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

        .guide-cover {
            overflow: hidden;
        }

        .guide-cover img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .guide-card:hover .guide-cover img {
            transform: scale(1.06);
        }

        .guide-body {
            padding: 22px;
        }

        .guide-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
        }

        .guide-title {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }

        .guide-title a {
            color: var(--text);
        }

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

        .guide-desc {
            color: var(--text-muted);
            font-size: .9rem;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-section {
            background: #fff;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            background: #fff;
            box-shadow: 0 4px 14px rgba(7, 29, 64, .04);
            overflow: hidden;
        }

        .accordion-button {
            font-weight: 700;
            color: var(--text);
            font-size: 1rem;
            padding: 18px 24px;
            background: #fff;
            transition: all var(--transition);
        }

        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(245, 165, 36, .2);
        }

        .accordion-button::after {
            background-size: 1rem;
        }

        .accordion-body {
            padding: 18px 24px 22px;
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.8;
            border-top: 1px solid var(--border);
        }

        /* CTA */
        .cta-section {
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            position: relative;
            padding: 80px 0;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 43, 90, .92), rgba(11, 43, 90, .65));
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-box {
            background: rgba(255, 255, 255, .97);
            border-radius: var(--radius-lg);
            padding: 44px;
            box-shadow: var(--shadow-hover);
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

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

        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: #cbd5e1;
            padding: 64px 0 0;
        }

        .footer-brand {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand i {
            color: var(--accent);
        }

        .footer-about {
            color: rgba(255, 255, 255, .72);
            font-size: .92rem;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 32px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .72);
            font-size: .92rem;
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 48px;
            padding: 22px 0;
            font-size: .85rem;
            color: rgba(255, 255, 255, .6);
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom .domain {
            color: rgba(255, 255, 255, .8);
            font-weight: 600;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .section {
                padding: 64px 0;
            }

            .hero {
                min-height: 520px;
            }

            .navbar-collapse {
                padding-bottom: 16px;
                border-top: 1px solid var(--border);
                margin-top: 8px;
            }

            .custom-navbar .navbar-nav .nav-link {
                padding: 12px 8px;
                border-radius: 8px;
            }

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

            .nav-extra {
                width: 100%;
            }

            .search-form .form-control {
                width: 100%;
            }
        }

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

            .hero {
                min-height: 480px;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: .98rem;
            }

            .hero-stats {
                gap: 20px;
            }

            .stat-item .stat-num {
                font-size: 1.4rem;
            }

            .cta-box {
                padding: 32px 20px;
            }

            .topline .topline-note {
                display: none;
            }

            .topline .container {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                text-align: center;
            }

            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }

            .stat-item {
                border-left-width: 4px;
            }

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

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

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a4d8f;
            --primary-dark: #123a6b;
            --primary-light: #2568c4;
            --accent: #e8b84b;
            --accent-dark: #c99a2e;
            --success: #2e9e6b;
            --warning: #e67e22;
            --danger: #d63031;
            --bg-body: #f6f8fc;
            --bg-light: #eef2f8;
            --bg-white: #ffffff;
            --bg-deep: #0d1b30;
            --text-main: #1f2a3a;
            --text-body: #3d4d63;
            --text-light: #7b8aa3;
            --text-muted: #9aa7bd;
            --border-color: #e3e9f2;
            --border-light: #ecf0f7;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 8px rgba(18, 52, 90, 0.06);
            --shadow-md: 0 8px 28px rgba(18, 52, 90, 0.10);
            --shadow-lg: 0 16px 48px rgba(18, 52, 90, 0.14);
            --transition: all 0.25s ease;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .container {
            max-width: 1240px;
        }

        /* ===== 顶部信息条 ===== */
        .topline {
            background: linear-gradient(135deg, var(--bg-deep) 0%, #16294a 100%);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            padding: 7px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .topline .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .topline i {
            color: var(--accent);
            margin-right: 6px;
        }

        .topline-note {
            color: rgba(255, 255, 255, 0.65);
        }

        /* ===== 主导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 0 rgba(18, 52, 90, 0.03);
        }

        .custom-navbar {
            padding: 12px 0;
            background: transparent;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--text-main);
            letter-spacing: -0.3px;
        }

        .navbar-brand:hover {
            color: var(--primary);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(26, 77, 143, 0.25);
            flex-shrink: 0;
        }

        .brand-text {
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .custom-navbar .nav-link {
            font-weight: 600;
            font-size: 15px;
            color: var(--text-body);
            padding: 8px 16px;
            border-radius: 8px;
            margin: 0 2px;
            position: relative;
            transition: var(--transition);
        }

        .custom-navbar .nav-link:hover {
            color: var(--primary);
            background: rgba(26, 77, 143, 0.06);
        }

        .custom-navbar .nav-link.active {
            color: var(--primary);
            background: rgba(26, 77, 143, 0.08);
            font-weight: 700;
        }

        .custom-navbar .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 3px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
        }

        .nav-extra {
            gap: 14px;
            margin-left: 10px;
        }

        .hot-keywords {
            gap: 8px;
            align-items: center;
            font-size: 13px;
            color: var(--text-light);
            white-space: nowrap;
        }

        .hot-label {
            color: var(--text-muted);
            font-weight: 500;
        }

        .hot-keywords a {
            color: var(--text-light);
            background: var(--bg-light);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .hot-keywords a:hover {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
        }

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

        .search-form .form-control {
            border-radius: 24px;
            border: 1px solid var(--border-color);
            padding: 7px 42px 7px 16px;
            font-size: 13px;
            width: 190px;
            background: var(--bg-light);
            transition: var(--transition);
        }

        .search-form .form-control:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(26, 77, 143, 0.12);
            width: 220px;
        }

        .btn-search {
            position: absolute;
            right: 3px;
            top: 50%;
            transform: translateY(-50%);
            border: none;
            background: transparent;
            color: var(--text-light);
            padding: 6px 10px;
            border-radius: 50%;
            font-size: 14px;
        }

        .btn-search:hover {
            color: var(--primary);
            background: rgba(26, 77, 143, 0.08);
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(26, 77, 143, 0.12);
        }

        /* ===== 内页 Banner ===== */
        .page-banner {
            position: relative;
            padding: 82px 0 68px;
            background: linear-gradient(135deg, var(--bg-deep) 0%, #14294a 60%, #1b3d6d 100%);
            color: #fff;
            overflow: hidden;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
        }

        .page-banner::after {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 184, 75, 0.15) 0%, transparent 70%);
            top: -120px;
            right: -80px;
            pointer-events: none;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 184, 75, 0.18);
            border: 1px solid rgba(232, 184, 75, 0.4);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            color: #fff;
        }

        .page-banner h1 span {
            color: var(--accent);
        }

        .page-banner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            margin-bottom: 24px;
        }

        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

        .banner-meta i {
            color: var(--accent);
            margin-right: 5px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 14px 0;
            background: #fff;
            border-bottom: 1px solid var(--border-light);
        }

        .breadcrumb-custom {
            font-size: 13px;
            color: var(--text-light);
        }

        .breadcrumb-custom a {
            color: var(--text-light);
        }

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

        .breadcrumb-custom .sep {
            margin: 0 8px;
            color: var(--text-muted);
        }

        .breadcrumb-custom .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }

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

        .section-accent {
            background: linear-gradient(180deg, var(--bg-body) 0%, #eef2f8 100%);
        }

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

        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-header .eyebrow::after {
            content: "";
            width: 26px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-header .lead {
            color: var(--text-light);
            font-size: 15px;
            max-width: 640px;
        }

        /* ===== 资料卡 / 内容卡片 ===== */
        .content-card {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

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

        .card-icon {
            width: 52px;
            height: 52px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .card-icon.blue {
            background: rgba(26, 77, 143, 0.1);
            color: var(--primary);
        }

        .card-icon.gold {
            background: rgba(232, 184, 75, 0.15);
            color: var(--accent-dark);
        }

        .card-icon.green {
            background: rgba(46, 158, 107, 0.12);
            color: var(--success);
        }

        .card-icon.orange {
            background: rgba(230, 126, 34, 0.12);
            color: var(--warning);
        }

        .content-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .content-card p {
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 12px;
        }

        .content-card .card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .content-card .card-link:hover {
            color: var(--primary-dark);
            gap: 9px;
        }

        /* ===== 步骤流程 ===== */
        .steps-wrap {
            counter-reset: step;
        }

        .step-item {
            position: relative;
            display: flex;
            gap: 20px;
            padding: 24px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .step-num {
            counter-increment: step;
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(26, 77, 143, 0.22);
        }

        .step-num::before {
            content: counter(step, decimal-leading-zero);
        }

        .step-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 6px;
        }

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

        .step-tag {
            position: absolute;
            top: 16px;
            right: 16px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            background: var(--bg-light);
            color: var(--text-light);
        }

        /* ===== 对比表 ===== */
        .compare-table {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-md);
            overflow: hidden;
        }

        .compare-table .table {
            margin: 0;
        }

        .compare-table .table th {
            background: var(--bg-deep);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            padding: 16px 20px;
        }

        .compare-table .table td {
            font-size: 14px;
            padding: 14px 20px;
            border-color: var(--border-light);
            vertical-align: middle;
        }

        .compare-table .table tr:hover td {
            background: #f8fafd;
        }

        .status-safe {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--success);
            font-weight: 600;
        }

        .status-danger {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--danger);
            font-weight: 600;
        }

        /* ===== 标签 ===== */
        .tag-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--bg-light);
            color: var(--text-body);
            border: 1px solid var(--border-color);
            margin: 0 6px 8px 0;
            transition: var(--transition);
        }

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

        /* ===== 内容列表 ===== */
        .info-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .info-list-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            flex-shrink: 0;
            background: rgba(26, 77, 143, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .info-list-content h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .info-list-content p {
            font-size: 13px;
            color: var(--text-light);
            margin: 0;
        }

        /* ===== 图片卡片 ===== */
        .image-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            margin-bottom: 26px;
        }

        .image-card img {
            width: 100%;
            object-fit: cover;
            min-height: 260px;
            max-height: 360px;
        }

        .image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 24px;
            background: linear-gradient(transparent, rgba(8, 18, 34, 0.85));
            color: #fff;
        }

        .image-overlay h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .image-overlay p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
        }

        /* ===== 统计块 ===== */
        .stat-block {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }

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

        .stat-num {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 6px;
        }

        /* ===== FAQ ===== */
        .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            padding: 18px 22px;
            background: #fff;
            border: none;
        }

        .accordion-button:not(.collapsed) {
            background: #f8fafd;
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(26, 77, 143, 0.10);
        }

        .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: var(--text-body);
            border-top: 1px solid var(--border-light);
        }

        .accordion-button::after {
            background-size: 16px;
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            position: relative;
            padding: 54px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            margin: 0 20px;
        }

        .cta-block::before {
            content: "";
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            top: -80px;
            right: -50px;
        }

        .cta-block::after {
            content: "";
            position: absolute;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(232, 184, 75, 0.1);
            bottom: -60px;
            left: 30px;
        }

        .cta-block .container {
            position: relative;
            z-index: 2;
        }

        .cta-block h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin-bottom: 0;
        }

        .btn-cta {
            background: var(--accent);
            color: #16294a;
            font-weight: 700;
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-size: 15px;
            box-shadow: 0 4px 14px rgba(232, 184, 75, 0.35);
            transition: var(--transition);
        }

        .btn-cta:hover {
            background: #f0c565;
            color: #0d1b30;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 184, 75, 0.4);
        }

        .btn-outline-light,
        .btn-outline-light:hover {
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 20px;
            margin-top: 30px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand i {
            color: var(--accent);
            font-size: 20px;
        }

        .footer-about {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-title {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
            font-size: 13px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

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

        .footer-links .domain {
            color: rgba(255, 255, 255, 0.7);
            font-family: "SF Mono", "Consolas", monospace;
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 10px;
            border-radius: 6px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .search-form .form-control {
                width: 150px;
            }
            .search-form .form-control:focus {
                width: 170px;
            }
            .section {
                padding: 54px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 991px) {
            .custom-navbar .navbar-collapse {
                padding: 14px 0;
            }
            .nav-extra {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                margin-left: 0;
                margin-top: 12px;
                padding-top: 12px;
                border-top: 1px solid var(--border-light);
            }
            .search-form .form-control {
                width: 100%;
            }
            .search-form .form-control:focus {
                width: 100%;
            }
            .hot-keywords {
                display: inline-flex;
                flex-wrap: wrap;
            }
            .cta-block {
                margin: 0;
            }
        }

        @media (max-width: 768px) {
            .topline .container {
                flex-direction: column;
                gap: 2px;
                text-align: center;
            }
            .page-banner {
                padding: 46px 0 38px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .section {
                padding: 42px 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .step-item {
                flex-direction: column;
                gap: 10px;
            }
            .step-tag {
                position: static;
                align-self: flex-start;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .banner-meta {
                flex-direction: column;
                gap: 6px;
            }
            .content-card {
                padding: 20px;
            }
            .cta-block {
                padding: 40px 20px;
            }
            .cta-block h2 {
                font-size: 22px;
            }
        }

        /* ===== 网页可访问性 ===== */
        a:focus-visible,
        button:focus-visible,
        .form-control:focus-visible {
            outline: 3px solid rgba(26, 77, 143, 0.35);
            outline-offset: 2px;
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: article */
:root {
    --primary: #12315c;
    --primary-light: #1d4a7d;
    --primary-dark: #0a1f3d;
    --accent: #e8a13a;
    --accent-light: #f5c06a;
    --accent-dark: #c98a25;
    --bg-body: #f4f6fb;
    --bg-white: #ffffff;
    --bg-soft: #eef1f7;
    --bg-dark: #0b234a;
    --text-main: #1a2333;
    --text-muted: #7b8a9c;
    --border: #e3e8ef;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 4px 16px rgba(18, 49, 92, 0.06);
    --shadow: 0 10px 30px rgba(18, 49, 92, 0.08);
    --shadow-lg: 0 20px 50px rgba(18, 49, 92, 0.14);
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }
button, input { font-family: inherit; }
.container { max-width: 1200px; }
.section-padding { padding: 80px 0; }

/* ===== header / nav ===== */
.site-header { background: var(--bg-white); box-shadow: 0 2px 12px rgba(18, 49, 92, 0.06); z-index: 1030; }
.topline {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.88);
    font-size: 13px;
    padding: 6px 0;
    letter-spacing: 0.2px;
}
.topline .container { display: flex; justify-content: space-between; align-items: center; }
.topline i { margin-right: 6px; color: var(--accent-light); }
.topline-note { opacity: 0.82; }
.custom-navbar { padding-top: 10px; padding-bottom: 10px; background: var(--bg-white); }
.navbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.22rem; color: var(--primary) !important; }
.brand-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 38px; border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff; font-size: 17px;
    box-shadow: 0 4px 12px rgba(18, 49, 92, 0.25);
}
.brand-text { color: var(--primary); font-weight: 800; letter-spacing: 0.3px; }
.custom-navbar .navbar-nav { gap: 2px; }
.custom-navbar .nav-link {
    font-size: 15px; font-weight: 600; color: #405168;
    padding: 8px 14px; border-radius: 8px; position: relative;
}
.custom-navbar .nav-link:hover { color: var(--primary); background: var(--bg-soft); }
.custom-navbar .nav-link.active { color: var(--primary); background: rgba(18, 49, 92, 0.08); }
.custom-navbar .nav-link.active::after {
    content: ''; position: absolute; bottom: 2px; left: 14px; right: 14px; height: 3px;
    background: var(--accent); border-radius: 3px;
}
.navbar-toggler { border: none; padding: 6px 10px; border-radius: 8px; }
.navbar-toggler:focus { box-shadow: none; outline: 2px solid var(--accent); }
.nav-extra { gap: 16px; }
.hot-keywords { align-items: center; font-size: 13px; color: var(--text-muted); gap: 6px; }
.hot-label { font-weight: 600; color: var(--primary); white-space: nowrap; }
.hot-keywords a { color: #5a6b7c; padding: 2px 8px; border-radius: 20px; background: var(--bg-soft); font-size: 12px; }
.hot-keywords a:hover { color: var(--accent-dark); background: rgba(232, 161, 58, 0.12); }
.search-form { display: flex; align-items: center; position: relative; }
.search-form .form-control {
    width: 200px; border-radius: 30px; border: 1px solid var(--border);
    background: var(--bg-soft); padding: 6px 40px 6px 16px; font-size: 13px;
    transition: var(--transition);
}
.search-form .form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(232, 161, 58, 0.15); background: #fff; }
.search-form .btn-search {
    position: absolute; right: 4px; border: none; background: transparent; color: var(--text-muted);
    font-size: 14px; padding: 6px 10px; border-radius: 50%;
}
.search-form .btn-search:hover { color: var(--primary); background: rgba(18, 49, 92, 0.06); }

/* ===== article hero ===== */
.article-hero { position: relative; padding: 64px 0 48px; background: var(--primary-dark); color: #fff; overflow: hidden; }
.article-hero-bg {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    opacity: 0.28;
}
.article-hero::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(10, 31, 61, 0.92) 0%, rgba(10, 31, 61, 0.72) 60%, rgba(18, 49, 92, 0.6) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 14px; margin-bottom: 18px; color: rgba(255, 255, 255, 0.75); }
.breadcrumb-nav a { color: rgba(255, 255, 255, 0.85); font-weight: 500; }
.breadcrumb-nav a:hover { color: var(--accent-light); }
.breadcrumb-sep { font-size: 11px; color: rgba(255, 255, 255, 0.5); }
.breadcrumb-current { color: var(--accent-light); }
.article-hero h1 {
    font-size: 2.2rem; font-weight: 800; line-height: 1.35; margin-bottom: 16px;
    max-width: 900px; text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.article-meta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; font-size: 14px; color: rgba(255, 255, 255, 0.82); }
.meta-item { display: inline-flex; align-items: center; gap: 6px; background: rgba(255, 255, 255, 0.1); padding: 5px 14px; border-radius: 30px; backdrop-filter: blur(4px); }
.meta-item i { color: var(--accent-light); }

/* ===== article body ===== */
.article-section { padding: 50px 0 70px; }
.article-body {
    background: var(--bg-white); border-radius: var(--radius); padding: 40px 44px;
    box-shadow: var(--shadow); border: 1px solid var(--border);
}
.article-body h2 { font-size: 1.6rem; font-weight: 700; color: var(--primary); margin: 2rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--border); }
.article-body h3 { font-size: 1.25rem; font-weight: 700; color: var(--primary-light); margin: 1.5rem 0 0.8rem; }
.article-body p { margin-bottom: 1rem; font-size: 1rem; line-height: 1.85; color: #34465a; }
.article-body img { border-radius: var(--radius); margin: 1.5rem 0; box-shadow: var(--shadow-sm); }
.article-body ul { margin: 1rem 0 1rem 1.4rem; list-style: disc; color: #34465a; }
.article-body ol { margin: 1rem 0 1rem 1.4rem; list-style: decimal; color: #34465a; }
.article-body li { margin-bottom: 0.4rem; line-height: 1.8; }
.article-body blockquote { border-left: 4px solid var(--accent); padding: 0.9rem 1.5rem; background: var(--bg-soft); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.5rem 0; color: #405168; }
.article-body a { color: var(--accent-dark); font-weight: 600; }
.article-body a:hover { color: var(--primary); text-decoration: underline; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.article-body table th, .article-body table td { border: 1px solid var(--border); padding: 10px 14px; }
.article-body table th { background: var(--bg-soft); font-weight: 700; color: var(--primary); }
.not-found { text-align: center; padding: 40px 0; }
.not-found-icon { font-size: 48px; color: var(--border); margin-bottom: 18px; }
.not-found h2 { font-size: 1.5rem; color: var(--primary); border: none; margin-bottom: 8px; }
.not-found p { color: var(--text-muted); margin-bottom: 20px; }

/* ===== sidebar ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 140px; }
.sidebar-card {
    background: var(--bg-white); border-radius: var(--radius); padding: 26px;
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    transition: var(--transition);
}
.sidebar-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.sidebar-card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.sidebar-card-header i { width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; background: rgba(18, 49, 92, 0.08); color: var(--primary); border-radius: 8px; font-size: 14px; }
.sidebar-card-header h3 { font-size: 1rem; font-weight: 700; color: var(--primary); margin: 0; }
.sidebar-card p { font-size: 0.9rem; color: #5a6b7c; line-height: 1.7; }
.sidebar-tips { margin-top: 12px; }
.sidebar-tips li { display: flex; align-items: flex-start; gap: 8px; font-size: 0.88rem; color: #405168; padding: 7px 0; }
.sidebar-tips i { color: #2a9d6f; margin-top: 3px; }
.sidebar-links li { border-bottom: 1px solid rgba(227, 232, 239, 0.6); }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a { display: flex; align-items: center; gap: 8px; padding: 10px 0; font-size: 0.92rem; color: #405168; font-weight: 500; }
.sidebar-links a i { color: var(--accent); font-size: 12px; transition: var(--transition); }
.sidebar-links a:hover { color: var(--primary); padding-left: 5px; }
.sidebar-links a:hover i { color: var(--accent-dark); }
.sidebar-card-highlight { background: linear-gradient(135deg, rgba(232, 161, 58, 0.06), rgba(232, 161, 58, 0.12)); border-color: rgba(232, 161, 58, 0.25); }

/* ===== section header ===== */
.section-header { margin-bottom: 48px; }
.section-tag {
    display: inline-block; background: rgba(232, 161, 58, 0.12); color: var(--accent-dark);
    font-size: 13px; font-weight: 600; padding: 4px 16px; border-radius: 30px; margin-bottom: 12px;
}
.section-header h2 { font-size: 2rem; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.section-header p { color: var(--text-muted); font-size: 1rem; max-width: 640px; margin: 0 auto; }

/* ===== security tips ===== */
.security-tips { background: var(--bg-white); }
.tip-card {
    background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 32px 28px; height: 100%; transition: var(--transition); position: relative;
    box-shadow: var(--shadow-sm);
}
.tip-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(18, 49, 92, 0.15); }
.tip-icon {
    width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-size: 22px;
    margin-bottom: 20px; box-shadow: 0 6px 16px rgba(18, 49, 92, 0.2);
}
.tip-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.tip-card p { font-size: 0.92rem; color: #5a6b7c; line-height: 1.7; }

/* ===== recommend ===== */
.recommend-section { background: var(--bg-body); }
.recommend-card {
    background: var(--bg-white); border-radius: var(--radius); overflow: hidden; height: 100%;
    box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition);
}
.recommend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.recommend-card img { width: 100%; height: 170px; object-fit: cover; transition: transform 0.4s ease; }
.recommend-card:hover img { transform: scale(1.04); }
.recommend-body { padding: 22px 24px; }
.recommend-body .badge { background: rgba(232, 161, 58, 0.14); color: var(--accent-dark); font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 30px; margin-bottom: 10px; }
.recommend-body h3 { font-size: 1.02rem; font-weight: 700; line-height: 1.5; margin-bottom: 8px; }
.recommend-body h3 a { color: var(--primary); }
.recommend-body h3 a:hover { color: var(--accent-dark); }
.recommend-body p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 0; }

/* ===== faq ===== */
.faq-section { background: var(--bg-white); }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow-sm); overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(18, 49, 92, 0.2); box-shadow: var(--shadow); }
.faq-question {
    display: flex; justify-content: space-between; align-items: center; width: 100%;
    padding: 18px 24px; background: transparent; border: none; text-align: left;
    font-size: 1rem; font-weight: 600; color: var(--primary); cursor: pointer;
    transition: var(--transition);
}
.faq-question:hover { color: var(--accent-dark); }
.faq-question i { color: var(--accent); font-size: 14px; transition: transform 0.3s ease; }
.faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
.faq-answer { padding: 0 24px 20px; font-size: 0.94rem; color: #405168; line-height: 1.8; border-top: 1px dashed var(--border); padding-top: 14px; }

/* ===== cta ===== */
.cta-section { padding: 60px 0; background: var(--bg-white); }
.cta-box {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    border-radius: 28px; padding: 48px 52px; display: flex; justify-content: space-between; align-items: center;
    gap: 30px; flex-wrap: wrap; color: #fff; position: relative; overflow: hidden;
    box-shadow: 0 20px 50px rgba(18, 49, 92, 0.28);
}
.cta-box::before {
    content: ''; position: absolute; width: 260px; height: 260px; border-radius: 50%;
    background: rgba(232, 161, 58, 0.15); top: -100px; right: -50px;
}
.cta-box::after {
    content: ''; position: absolute; width: 180px; height: 180px; border-radius: 50%;
    background: rgba(255, 255, 255, 0.06); bottom: -70px; right: 140px;
}
.cta-content h2 { font-size: 1.7rem; font-weight: 800; margin-bottom: 8px; }
.cta-content p { opacity: 0.88; font-size: 0.96rem; margin: 0; }
.cta-actions { display: flex; gap: 14px; position: relative; z-index: 2; flex-wrap: wrap; }

/* ===== buttons ===== */
.btn { border-radius: 30px; padding: 10px 24px; font-weight: 600; transition: var(--transition); }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(18, 49, 92, 0.25); }
.btn-light { background: #fff; border-color: #fff; color: var(--primary); }
.btn-light:hover { background: var(--accent-light); border-color: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15); }
.btn-outline-light { border-color: rgba(255, 255, 255, 0.7); color: #fff; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn:focus { box-shadow: 0 0 0 4px rgba(232, 161, 58, 0.25); }

/* ===== footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255, 255, 255, 0.78); padding: 60px 0 30px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-brand i { color: var(--accent-light); }
.footer-about { font-size: 0.9rem; line-height: 1.75; color: rgba(255, 255, 255, 0.65); max-width: 340px; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 3px; background: var(--accent); border-radius: 3px; }
.footer-links li { margin-bottom: 9px; font-size: 0.9rem; }
.footer-links a { color: rgba(255, 255, 255, 0.68); }
.footer-links a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-links .domain { color: var(--accent-light); font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 40px; padding-top: 20px; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 0.82rem; color: rgba(255, 255, 255, 0.5); }

/* ===== responsive ===== */
@media (max-width: 1024px) {
    .section-padding { padding: 60px 0; }
    .article-hero h1 { font-size: 1.8rem; }
    .article-body { padding: 32px; }
    .cta-box { padding: 38px 32px; }
    .hot-keywords { display: none !important; }
    .search-form .form-control { width: 160px; }
}
@media (max-width: 768px) {
    .section-padding { padding: 48px 0; }
    .topline-note { display: none; }
    .article-hero { padding: 44px 0 36px; }
    .article-hero h1 { font-size: 1.5rem; }
    .article-section { padding: 36px 0 50px; }
    .article-body { padding: 24px; border-radius: 14px; }
    .article-meta { gap: 10px; }
    .meta-item { padding: 4px 10px; font-size: 13px; }
    .article-sidebar { position: static; }
    .section-header h2 { font-size: 1.6rem; }
    .cta-box { flex-direction: column; align-items: flex-start; padding: 32px 24px; border-radius: 20px; }
    .cta-actions { width: 100%; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .search-form .form-control { width: 140px; }
    .custom-navbar .navbar-nav { margin-top: 12px; }
    .nav-extra { flex-wrap: wrap; margin-top: 8px; }
}
@media (max-width: 520px) {
    .section-padding { padding: 38px 0; }
    .navbar-brand { font-size: 1.05rem; }
    .brand-icon { width: 32px; height: 32px; font-size: 14px; }
    .article-hero h1 { font-size: 1.25rem; }
    .breadcrumb-nav { font-size: 13px; }
    .article-body { padding: 18px; }
    .article-body h2 { font-size: 1.3rem; }
    .article-body p { font-size: 0.95rem; }
    .section-header h2 { font-size: 1.35rem; }
    .tip-card { padding: 24px 20px; }
    .search-form .form-control { width: 120px; }
    .cta-content h2 { font-size: 1.3rem; }
    .cta-actions .btn { width: 100%; }
}

/* roulang page: category2 */
:root {
            --brand-primary: #1e4bd2;
            --brand-secondary: #0ea5e9;
            --brand-accent: #14b8a6;
            --brand-dark: #0b1526;
            --brand-navy: #15213b;
            --bg-body: #f3f7fc;
            --bg-soft: #eaf1fa;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-pill: 50rem;
            --shadow-sm: 0 6px 18px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 14px 36px rgba(15, 23, 42, 0.09);
            --shadow-lg: 0 28px 60px rgba(15, 23, 42, 0.13);
            --trans: 0.28s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: var(--brand-primary);
            transition: color var(--trans);
        }
        a:hover {
            color: var(--brand-secondary);
        }

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

        .container {
            max-width: 1280px;
        }

        .section {
            padding: 96px 0;
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--brand-dark);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
        }

        .section-head {
            margin-bottom: 52px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(30, 75, 210, 0.1);
            color: var(--brand-primary);
            font-weight: 600;
            font-size: 14px;
            padding: 7px 18px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-tag i {
            font-size: 13px;
        }

        .text-muted {
            color: var(--text-muted) !important;
        }

        .btn {
            border-radius: var(--radius-pill);
            font-weight: 600;
            padding: 11px 28px;
            transition: all var(--trans);
            border: 2px solid transparent;
            font-size: 15px;
        }

        .btn-primary {
            background: var(--brand-primary);
            border-color: var(--brand-primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: #173da8;
            border-color: #173da8;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(30, 75, 210, 0.28);
        }

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

        .brand-icon {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 12px;
            color: #fff;
            font-size: 17px;
            margin-right: 10px;
            box-shadow: 0 6px 16px rgba(30, 75, 210, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-weight: 800;
            font-size: 20px;
            color: var(--brand-dark);
            letter-spacing: 0.01em;
        }

        /* ===== Header / Topline ===== */
        .site-header {
            background: #fff;
            box-shadow: 0 4px 18px rgba(15, 23, 42, 0.06);
        }

        .topline {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.82);
            font-size: 13px;
            padding: 7px 0;
            letter-spacing: 0.02em;
        }

        .topline .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .topline i {
            color: #7bb8ff;
            margin-right: 5px;
        }

        .topline-note {
            color: #9db4d0;
        }

        .custom-navbar {
            padding: 14px 0;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(8px);
        }

        .custom-navbar .navbar-brand {
            display: flex;
            align-items: center;
            padding: 0;
        }

        .custom-navbar .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            padding: 9px 18px;
            border-radius: 40px;
            position: relative;
            transition: background var(--trans), color var(--trans);
        }

        .custom-navbar .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: rgba(30, 75, 210, 0.06);
        }

        .custom-navbar .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            background: rgba(30, 75, 210, 0.1);
        }

        .nav-extra {
            gap: 16px;
        }

        .hot-keywords {
            font-size: 13px;
            color: var(--text-muted);
            gap: 6px;
            align-items: center;
        }

        .hot-label {
            color: var(--text-muted);
            font-weight: 600;
        }

        .hot-keywords a {
            color: var(--brand-navy);
            font-weight: 600;
            padding: 5px 12px;
            background: var(--bg-soft);
            border-radius: 20px;
            transition: all var(--trans);
        }

        .hot-keywords a:hover {
            background: var(--brand-primary);
            color: #fff;
        }

        .search-form {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg-soft);
            border-radius: 40px;
            padding: 4px 4px 4px 16px;
            border: 1px solid transparent;
            transition: border-color var(--trans), box-shadow var(--trans);
            min-width: 250px;
        }

        .search-form:focus-within {
            border-color: rgba(30, 75, 210, 0.4);
            box-shadow: 0 0 0 4px rgba(30, 75, 210, 0.08);
            background: #fff;
        }

        .search-form .form-control {
            border: none;
            background: transparent;
            box-shadow: none;
            font-size: 14px;
            padding: 6px 0;
            color: var(--text-main);
        }

        .search-form .form-control:focus {
            background: transparent;
            color: var(--text-main);
        }

        .search-form .btn-search {
            background: var(--brand-primary);
            color: #fff;
            border-radius: 50%;
            width: 36px;
            height: 36px;
            padding: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: background var(--trans), transform var(--trans);
            font-size: 14px;
        }

        .search-form .btn-search:hover {
            background: #173da8;
            transform: scale(1.05);
        }

        .navbar-toggler {
            border: 2px solid var(--brand-primary);
            border-radius: 10px;
            padding: 5px 10px;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(30, 75, 210, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231e4bd2' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            min-height: 460px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            color: #fff;
        }

        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 20, 40, 0.92) 0%, rgba(10, 32, 66, 0.78) 48%, rgba(13, 50, 95, 0.55) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 50px;
            padding-bottom: 50px;
        }

        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            margin-bottom: 22px;
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.22;
            letter-spacing: -0.02em;
            max-width: 900px;
            margin-bottom: 18px;
            text-shadow: 0 4px 22px rgba(0, 0, 0, 0.25);
        }

        .page-banner p {
            font-size: 1.12rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 780px;
            margin-bottom: 28px;
        }

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

        .btn-primary-light {
            background: #fff;
            color: var(--brand-dark);
            border: none;
            font-weight: 700;
        }

        .btn-primary-light:hover {
            background: #e6edf8;
            color: var(--brand-primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(0, 0, 0, 0.2);
        }

        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, 0.75);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: #fff;
            color: #fff;
        }

        .banner-breadcrumb {
            margin-bottom: 20px;
            font-size: 14px;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--trans);
        }

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

        /* ===== Intro Section ===== */
        .intro-section {
            background: #fff;
            border-bottom: 1px solid var(--border-color);
        }

        .intro-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 320px;
        }

        .intro-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .intro-float-card {
            position: absolute;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            padding: 18px 22px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            max-width: 220px;
        }

        .intro-float-card .num {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--brand-primary);
            line-height: 1.1;
        }

        .intro-float-card .label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .float-card-1 {
            top: 20px;
            right: -16px;
        }

        .float-card-2 {
            bottom: 24px;
            left: -16px;
        }

        .intro-list {
            list-style: none;
            padding: 0;
            margin: 22px 0 0;
        }

        .intro-list li {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px dashed var(--border-color);
            align-items: flex-start;
        }

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

        .intro-list .icon-box {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 16px;
            color: var(--brand-primary);
            background: rgba(30, 75, 210, 0.08);
        }

        .intro-list h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--brand-dark);
        }

        .intro-list p {
            font-size: 14px;
            margin-bottom: 0;
            color: var(--text-muted);
        }

        /* ===== Card Section ===== */
        .cards-section {
            background: var(--bg-body);
        }

        .security-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
            position: relative;
            overflow: hidden;
        }

        .security-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--trans);
        }

        .security-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(30, 75, 210, 0.2);
        }

        .security-card:hover::before {
            transform: scaleX(1);
        }

        .security-card .card-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, rgba(30, 75, 210, 0.1), rgba(14, 165, 233, 0.12));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand-primary);
            margin-bottom: 22px;
        }

        .security-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--brand-dark);
        }

        .security-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
            line-height: 1.75;
        }

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

        /* ===== Steps Section ===== */
        .steps-section {
            background: var(--brand-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            top: -160px;
            right: -120px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(30, 75, 210, 0.35), transparent 70%);
        }

        .steps-section .section-title,
        .steps-section .section-tag {
            color: #fff;
        }

        .steps-section .section-tag {
            background: rgba(255, 255, 255, 0.12);
        }

        .steps-section .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .step-item {
            position: relative;
            padding: 30px 28px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(4px);
            height: 100%;
            transition: all var(--trans);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1;
            color: rgba(255, 255, 255, 0.16);
            position: absolute;
            top: 20px;
            right: 24px;
            z-index: 0;
        }

        .step-item h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 0;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            width: 40px;
            height: 40px;
            background: var(--brand-secondary);
            border-radius: 50%;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 5;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
            font-size: 14px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--brand-primary), #0b2f66);
            color: #fff;
        }

        .stats-section .section-title,
        .stats-section .section-subtitle {
            color: #fff;
        }

        .stats-section .section-subtitle {
            color: rgba(255, 255, 255, 0.72);
        }

        .stat-box {
            text-align: center;
            padding: 40px 20px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(4px);
            height: 100%;
            transition: transform var(--trans);
        }

        .stat-box:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.12);
        }

        .stat-box .stat-num {
            font-size: 3.1rem;
            font-weight: 800;
            line-height: 1.1;
            color: #fff;
        }

        .stat-box .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.78);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== Checklist ===== */
        .checklist-section {
            background: var(--bg-soft);
        }

        .checklist-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: transform var(--trans), box-shadow var(--trans);
            height: 100%;
        }

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

        .checklist-header {
            padding: 28px 28px 18px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .checklist-header .icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 21px;
            color: var(--brand-primary);
            background: rgba(30, 75, 210, 0.1);
        }

        .checklist-header h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 2px;
            color: var(--brand-dark);
        }

        .checklist-header p {
            color: var(--text-muted);
            font-size: 13px;
            margin-bottom: 0;
        }

        .checklist-body {
            padding: 24px 28px;
        }

        .check-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
        }

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

        .check-item i {
            color: var(--brand-accent);
            margin-top: 4px;
            font-size: 15px;
            flex-shrink: 0;
        }

        .check-item p {
            font-size: 14px;
            margin-bottom: 0;
            color: var(--text-navy, var(--brand-navy));
            font-weight: 500;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
        }

        .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            margin-bottom: 18px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            background: #fff;
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-dark);
            padding: 22px 28px;
            background: #fff;
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(30, 75, 210, 0.05);
            color: var(--brand-primary);
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(30, 75, 210, 0.1);
            border-radius: var(--radius-md);
        }

        .accordion-button::after {
            font-size: 14px;
        }

        .accordion-body {
            padding: 8px 28px 26px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: url("/assets/images/backpic/back-3.png") center / cover fixed;
            position: relative;
            color: #fff;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(9, 22, 43, 0.95), rgba(16, 44, 88, 0.85));
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-box {
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 2.3rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 30px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--brand-dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 70px 0 26px;
            font-size: 14px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand i {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
        }

        .site-footer .footer-about {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--trans), padding-left var(--trans);
        }

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

        .footer-links .domain {
            color: #7bb8ff;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.06);
            padding: 3px 12px;
            border-radius: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom p {
            line-height: 1.6;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .hot-keywords {
                display: none !important;
            }

            .search-form {
                min-width: 200px;
            }
        }

        @media (max-width: 991px) {
            .section {
                padding: 72px 0;
            }

            .custom-navbar .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 20px 16px;
                margin-top: 14px;
                box-shadow: var(--shadow-md);
                border: 1px solid var(--border-color);
            }

            .custom-navbar .navbar-nav .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }

            .nav-extra {
                margin-top: 12px;
                padding-top: 16px;
                border-top: 1px solid var(--border-color);
                flex-direction: column;
                align-items: stretch;
            }

            .search-form {
                width: 100%;
            }

            .navbar-toggler {
                display: inline-flex;
            }

            .page-banner {
                min-height: 400px;
            }

            .page-banner h1 {
                font-size: 2.3rem;
            }

            .float-card-1 {
                right: 8px;
            }

            .float-card-2 {
                left: 8px;
            }
        }

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

            .section-title {
                font-size: 1.7rem;
            }

            .page-banner {
                min-height: 360px;
            }

            .page-banner h1 {
                font-size: 1.9rem;
            }

            .step-arrow {
                display: none;
            }

            .stats-section .stat-num {
                font-size: 2.2rem;
            }

            .cta-box h2 {
                font-size: 1.7rem;
            }

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

        @media (max-width: 520px) {
            .topline .container {
                justify-content: center;
                text-align: center;
            }

            .topline-note {
                width: 100%;
            }

            .section-title {
                font-size: 1.5rem;
            }

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

            .search-form {
                min-width: 0;
            }

            .page-banner p {
                font-size: 1rem;
            }

            .float-card-1,
            .float-card-2 {
                max-width: 180px;
                padding: 12px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0f6e5c;
            --primary-dark: #0a5244;
            --primary-light: #1a8a73;
            --accent: #e8a23d;
            --accent-dark: #c7811f;
            --dark: #10201c;
            --body-bg: #f4f7f5;
            --surface: #ffffff;
            --text: #1d2b27;
            --muted: #6a7d76;
            --border: #dfe8e3;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow: 0 10px 30px rgba(15, 60, 50, .08);
            --shadow-lg: 0 18px 44px rgba(15, 60, 50, .14);
            --transition: .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
        }
        .section-padding {
            padding: 92px 0;
        }
        .section-head {
            margin-bottom: 46px;
        }
        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 1px;
            background: rgba(15, 110, 92, .1);
            border-radius: 40px;
            padding: 6px 18px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(28px, 3.4vw, 40px);
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            color: var(--muted);
            font-size: 17px;
            max-width: 720px;
            margin-bottom: 0;
        }
        .section-head.text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== Header & Nav ========== */
        .site-header {
            background: var(--surface);
            box-shadow: 0 4px 24px rgba(15, 60, 50, .06);
            z-index: 1080;
        }
        .topline {
            background: var(--dark);
            color: rgba(255, 255, 255, .8);
            font-size: 13px;
            padding: 8px 0;
        }
        .topline .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .topline i {
            color: var(--accent);
            margin-right: 5px;
        }
        .topline-note {
            color: rgba(255, 255, 255, .6);
        }
        .custom-navbar {
            background: var(--surface);
            padding: 14px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--dark) !important;
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 6px 14px rgba(15, 110, 92, .3);
        }
        .brand-text {
            letter-spacing: .2px;
        }
        .custom-navbar .navbar-nav {
            margin-left: 34px;
            gap: 4px;
        }
        .custom-navbar .nav-link {
            font-weight: 600;
            color: var(--text);
            padding: 10px 16px !important;
            border-radius: 40px;
            position: relative;
            font-size: 15px;
            transition: all var(--transition);
        }
        .custom-navbar .nav-link::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .custom-navbar .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 110, 92, .06);
        }
        .custom-navbar .nav-link.active {
            color: var(--primary);
            background: rgba(15, 110, 92, .1);
        }
        .custom-navbar .nav-link.active::after {
            transform: scaleX(1);
        }
        .custom-navbar .navbar-toggler {
            border: none;
            padding: 6px 10px;
            border-radius: 10px;
        }
        .custom-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(15, 110, 92, .15);
        }
        .custom-navbar .navbar-toggler-icon {
            background-image: none;
            width: 24px;
            height: 24px;
            position: relative;
            border-top: 2px solid var(--dark);
            border-bottom: 2px solid var(--dark);
            border-radius: 1px;
        }
        .custom-navbar .navbar-toggler-icon::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            top: 50%;
            height: 2px;
            background: var(--dark);
            transform: translateY(-50%);
        }
        .nav-extra {
            gap: 16px;
        }
        .hot-keywords {
            gap: 6px;
            align-items: center;
            font-size: 13px;
            color: var(--muted);
        }
        .hot-label {
            color: var(--dark);
            font-weight: 700;
        }
        .hot-keywords a {
            background: rgba(15, 110, 92, .08);
            border-radius: 30px;
            padding: 4px 12px;
            font-weight: 600;
            color: var(--primary);
            font-size: 13px;
            transition: all var(--transition);
        }
        .hot-keywords a:hover {
            background: var(--primary);
            color: #fff;
        }
        .search-form {
            position: relative;
            width: 220px;
        }
        .search-form .form-control {
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 8px 40px 8px 18px;
            font-size: 14px;
            background: var(--body-bg);
            transition: all var(--transition);
        }
        .search-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(15, 110, 92, .12);
            background: #fff;
        }
        .btn-search {
            position: absolute;
            right: 4px;
            top: 50%;
            transform: translateY(-50%);
            border: none;
            border-radius: 50%;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .btn-search:hover {
            background: var(--primary-dark);
        }

        /* ========== Page Banner ========== */
        .page-banner {
            background: linear-gradient(to right, rgba(15, 60, 50, .92), rgba(10, 82, 68, .78)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 116px 0 96px;
            color: #fff;
            position: relative;
        }
        .page-banner .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(255, 255, 255, .4);
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }
        .banner-tag i {
            color: var(--accent);
        }
        .page-banner h1 {
            font-size: clamp(34px, 5vw, 54px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
            max-width: 900px;
        }
        .page-banner .banner-desc {
            font-size: 18px;
            max-width: 720px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 34px;
        }
        .btn-group-banner {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            border-radius: 40px;
            font-weight: 700;
            padding: 12px 28px;
            transition: all var(--transition);
            font-size: 15px;
        }
        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 22px rgba(232, 162, 61, .32);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .75);
            color: #fff;
            background: transparent;
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-brand {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }
        .btn-brand:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        /* ========== Core Notice ========== */
        .core-notice {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 56px 48px;
            margin-top: -46px;
            position: relative;
            z-index: 5;
        }
        .core-notice .lead-text {
            font-size: 19px;
            color: var(--dark);
            font-weight: 600;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .core-notice .lead-text em {
            color: var(--primary);
            font-style: normal;
        }
        .stat-card {
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            height: 100%;
            transition: all var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: rgba(15, 110, 92, .3);
            background: #fff;
        }
        .stat-card .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 15px;
            color: var(--muted);
            font-weight: 600;
            margin-bottom: 6px;
        }
        .stat-card .stat-desc {
            font-size: 13px;
            color: var(--muted);
        }

        /* ========== Risk Cards ========== */
        .risk-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 34px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            height: 100%;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .risk-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            background: linear-gradient(to bottom, var(--accent), var(--primary));
            transition: width var(--transition);
        }
        .risk-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        .risk-card:hover::before {
            width: 6px;
        }
        .risk-card .card-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: rgba(15, 110, 92, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .risk-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .risk-card p {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 14px;
        }
        .risk-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .badge-soft {
            background: rgba(15, 110, 92, .08);
            color: var(--primary);
            font-weight: 600;
            font-size: 13px;
            border-radius: 30px;
            padding: 5px 14px;
        }

        /* ========== Steps ========== */
        .steps-section {
            background: linear-gradient(135deg, #0a2e28, #0f6e5c);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            right: -120px;
            top: -120px;
            width: 340px;
            height: 340px;
            background: rgba(255, 255, 255, .04);
            border-radius: 50%;
        }
        .steps-section .section-title,
        .steps-section .section-desc {
            color: #fff;
        }
        .steps-section .section-subtitle {
            background: rgba(255, 255, 255, .12);
            color: var(--accent);
        }
        .step-card {
            position: relative;
            padding: 30px 24px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            text-align: center;
            height: 100%;
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }
        .step-card:hover {
            background: rgba(255, 255, 255, .13);
            transform: translateY(-6px);
        }
        .step-num {
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 12px;
            font-family: 'Georgia', serif;
        }
        .step-card h4 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-card p {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            margin-bottom: 0;
        }

        /* ========== Article List ========== */
        .guide-list-wrap {
            background: var(--surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 44px;
        }
        .article-list-item {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            padding-bottom: 28px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-list-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .article-list-item:hover .article-title {
            color: var(--primary);
        }
        .article-thumb {
            flex: 0 0 180px;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
            min-height: 120px;
        }
        .article-thumb img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .article-list-item:hover .article-thumb img {
            transform: scale(1.05);
        }
        .article-body {
            flex: 1;
            min-width: 260px;
        }
        .article-meta {
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 8px;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .article-meta .tag {
            background: rgba(232, 162, 61, .15);
            color: var(--accent-dark);
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 600;
        }
        .article-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            transition: all var(--transition);
            line-height: 1.4;
        }
        .article-excerpt {
            color: var(--muted);
            font-size: 15px;
            margin-bottom: 0;
        }
        .side-card {
            background: linear-gradient(180deg, rgba(15, 110, 92, .04), rgba(232, 162, 61, .08));
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            height: 100%;
        }
        .side-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card h4 i {
            color: var(--accent);
        }
        .side-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .side-list li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 14px;
            color: var(--text);
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }
        .side-list li:last-child {
            border-bottom: none;
        }
        .side-list li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 13px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--muted);
            transition: all var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--body-bg);
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: none;
            background: var(--surface);
        }
        .faq-accordion .accordion-button {
            font-weight: 700;
            font-size: 17px;
            color: var(--dark);
            padding: 20px 26px;
            background: var(--surface);
            gap: 12px;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(15, 110, 92, .06);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(15, 110, 92, .12);
        }
        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(15, 110, 92, .08);
            color: var(--primary);
            transition: all var(--transition);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-accordion .accordion-body {
            padding: 6px 26px 24px;
            color: var(--muted);
            font-size: 15px;
        }

        /* ========== CTA ========== */
        .cta-banner {
            background: linear-gradient(120deg, var(--dark), #134e42), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            background-blend-mode: multiply;
            border-radius: var(--radius-lg);
            padding: 64px 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '\f06a';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 200px;
            position: absolute;
            right: -20px;
            bottom: -50px;
            color: rgba(255, 255, 255, .04);
            transform: rotate(-12deg);
        }
        .cta-banner h3 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, .78);
            max-width: 620px;
            margin-bottom: 28px;
            font-size: 16px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .7);
            padding: 72px 0 0;
            margin-top: 0;
            font-size: 15px;
        }
        .site-footer .row {
            padding-bottom: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 26px;
        }
        .footer-about {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            line-height: 1.9;
            max-width: 340px;
        }
        .footer-title {
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 24px;
            position: relative;
            padding-bottom: 12px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 34px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .65);
            transition: all var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .site-footer .domain {
            color: var(--accent);
            font-weight: 600;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .section-padding {
                padding: 72px 0;
            }
            .custom-navbar .navbar-collapse {
                padding-top: 18px;
                border-top: 1px solid var(--border);
                margin-top: 12px;
            }
            .custom-navbar .navbar-nav {
                margin-left: 0;
                gap: 2px;
            }
            .nav-extra {
                flex-direction: column;
                align-items: flex-start !important;
                margin-top: 12px;
            }
            .search-form {
                width: 100%;
            }
            .hot-keywords {
                display: none;
            }
            .core-notice {
                padding: 36px 24px;
                margin-top: -32px;
            }
            .cta-banner {
                padding: 44px 30px;
            }
            .guide-list-wrap {
                padding: 30px 24px;
            }
            .article-thumb {
                flex-basis: 100%;
            }
            .article-thumb img {
                height: 180px;
            }
        }
        @media (max-width: 767.98px) {
            .topline .topline-note {
                display: none;
            }
            .page-banner {
                padding: 90px 0 70px;
            }
            .btn-group-banner .btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 575.98px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .core-notice {
                padding: 28px 20px;
                margin-top: -24px;
            }
            .risk-card {
                padding: 26px 22px;
            }
            .cta-banner {
                padding: 32px 22px;
                border-radius: var(--radius);
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-num {
                font-size: 32px;
            }
            .article-meta {
                flex-wrap: wrap;
                gap: 6px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
        }