/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --clr-primary: #2A0A40;
            --clr-primary-light: #5B2A8C;
            --clr-accent: #FF5A36;
            --clr-accent-hover: #e04a2a;
            --clr-bg: #F4F6F9;
            --clr-bg-white: #FFFFFF;
            --clr-dark: #1A1A2E;
            --clr-dark-alt: #1A0A2E;
            --clr-title: #1A0A2E;
            --clr-body: #3D3D4A;
            --clr-muted: #7A7A8F;
            --clr-border: rgba(42,10,64,0.10);
            --clr-success: #2ECC71;
            --clr-warning: #F1C40F;
            --clr-error: #E74C3C;
            --gradient-hero: linear-gradient(135deg, #2A0A40 0%, #5B2A8C 100%);
            --gradient-btn: linear-gradient(135deg, #FF5A36, #e04a2a);
            --radius-card: 12px;
            --radius-sm: 8px;
            --radius-chip: 16px;
            --shadow-card: 0 4px 12px rgba(42,10,64,0.08);
            --shadow-card-hover: 0 8px 24px rgba(42,10,64,0.15);
            --shadow-nav: 0 2px 8px rgba(0,0,0,0.06);
            --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --bs-gutter-x: 2rem;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-stack);
            background-color: var(--clr-bg);
            color: var(--clr-body);
            line-height: 1.7;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--clr-primary-light); text-decoration: none; transition: color 0.25s ease; }
        a:hover { color: var(--clr-accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; padding: 0; margin: 0; }
        h1, h2, h3, h4, h5, h6 { color: var(--clr-title); line-height: 1.3; font-weight: 700; }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media (min-width: 768px) {
            .container-custom { padding: 0 2rem; }
        }

        /* ===== Section Spacing ===== */
        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 40px 0; } }

        /* ===== Navigation ===== */
        .navbar-main {
            background: var(--clr-bg-white);
            box-shadow: var(--shadow-nav);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .navbar-main .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--clr-primary) !important;
            letter-spacing: 0.5px;
        }
        .navbar-main .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gradient-hero);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.2rem;
        }
        .navbar-main .navbar-brand .brand-sub {
            font-size: 0.75rem;
            color: var(--clr-muted);
            font-weight: 400;
            margin-left: 0.25rem;
            letter-spacing: 0.3px;
        }
        .navbar-main .nav-link {
            color: var(--clr-body) !important;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: background 0.25s ease, color 0.25s ease;
            font-size: 0.95rem;
        }
        .navbar-main .nav-link:hover,
        .navbar-main .nav-link.active {
            background: rgba(42,10,64,0.06);
            color: var(--clr-primary) !important;
        }
        .navbar-main .nav-link.active { font-weight: 600; }
        .navbar-main .search-box {
            display: flex;
            align-items: center;
            background: var(--clr-bg);
            border-radius: var(--radius-sm);
            padding: 0.25rem 0.75rem;
            border: 1px solid transparent;
            transition: border 0.25s ease;
        }
        .navbar-main .search-box:focus-within {
            border-color: var(--clr-accent);
            background: var(--clr-bg-white);
        }
        .navbar-main .search-box input {
            border: none;
            background: transparent;
            outline: none;
            padding: 0.35rem 0.5rem;
            font-size: 0.9rem;
            color: var(--clr-body);
            min-width: 140px;
        }
        .navbar-main .search-box i { color: var(--clr-muted); cursor: pointer; }
        .navbar-main .hot-trend {
            font-size: 0.8rem;
            color: var(--clr-muted);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .navbar-main .hot-trend i { color: var(--clr-accent); font-size: 0.75rem; }
        .navbar-main .hot-trend span { background: rgba(255,90,54,0.10); padding: 0.15rem 0.6rem; border-radius: 20px; color: var(--clr-accent); font-weight: 500; cursor: pointer; transition: background 0.2s; }
        .navbar-main .hot-trend span:hover { background: rgba(255,90,54,0.20); }
        .navbar-toggler { border: none; color: var(--clr-primary); font-size: 1.4rem; padding: 0.25rem 0.5rem; }
        .navbar-toggler:focus { box-shadow: none; }
        @media (max-width: 991.98px) {
            .navbar-main .navbar-collapse {
                background: var(--clr-bg-white);
                padding: 1rem;
                border-radius: var(--radius-card);
                box-shadow: var(--shadow-card);
                margin-top: 0.5rem;
            }
            .navbar-main .search-box { width: 100%; margin: 0.5rem 0; }
            .navbar-main .hot-trend { justify-content: center; margin-top: 0.5rem; }
        }

        /* ===== Hero ===== */
        .hero-section {
            background: var(--clr-dark-alt);
            background-image: var(--gradient-hero), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            min-height: 100vh;
            min-height: 600px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(transparent, var(--clr-bg));
            pointer-events: none;
        }
        .hero-content { position: relative; z-index: 2; padding: 4rem 0 6rem; }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
        }
        .hero-content .hero-sub {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.6;
        }
        .hero-content .btn-hero-primary {
            background: var(--gradient-btn);
            color: #fff;
            border: none;
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(255,90,54,0.35);
            margin-right: 1rem;
        }
        .hero-content .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255,90,54,0.45);
            background: linear-gradient(135deg, #e04a2a, #cc3f1f);
            color: #fff;
        }
        .hero-content .btn-hero-secondary {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.35);
            padding: 0.85rem 2.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.05rem;
            transition: all 0.3s ease;
        }
        .hero-content .btn-hero-secondary:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            color: #fff;
        }
        .hero-pain-points {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 2.5rem;
        }
        .hero-pain-points .pain-chip {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,255,255,0.10);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-chip);
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.25s ease, transform 0.2s ease;
            border: 1px solid rgba(255,255,255,0.08);
        }
        .hero-pain-points .pain-chip:hover {
            background: rgba(255,255,255,0.20);
            transform: translateY(-2px);
        }
        .hero-pain-points .pain-chip i { color: var(--clr-accent); font-size: 1rem; }
        .pain-detail-panel {
            background: rgba(255,255,255,0.06);
            backdrop-filter: blur(6px);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            margin-top: 1.5rem;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.08);
            display: none;
        }
        .pain-detail-panel.active { display: block; }
        .pain-detail-panel p { margin-bottom: 0; color: rgba(255,255,255,0.85); font-size: 0.95rem; }
        @media (max-width: 768px) {
            .hero-content h1 { font-size: 2rem; }
            .hero-content .hero-sub { font-size: 1rem; }
            .hero-content .btn-hero-primary,
            .hero-content .btn-hero-secondary { width: 100%; margin-right: 0; margin-bottom: 0.75rem; }
            .hero-pain-points { justify-content: center; }
        }
        @media (max-width: 576px) {
            .hero-content h1 { font-size: 1.65rem; }
            .hero-section { min-height: 80vh; }
        }

        /* ===== Solution Cards ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--clr-title);
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--clr-muted);
            max-width: 640px;
            margin: 0 auto 2.5rem auto;
        }
        .card-modern {
            background: var(--clr-bg-white);
            border: none;
            border-radius: var(--radius-card);
            padding: 1.5rem;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .card-modern:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-modern .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(42,10,64,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--clr-accent);
            margin-bottom: 1.2rem;
            transition: background 0.25s ease;
        }
        .card-modern:hover .card-icon { background: rgba(255,90,54,0.10); }
        .card-modern h5 { font-weight: 700; font-size: 1.2rem; margin-bottom: 0.75rem; color: var(--clr-title); }
        .card-modern p { color: var(--clr-body); font-size: 0.95rem; margin-bottom: 1.2rem; line-height: 1.6; }
        .card-modern .card-link {
            font-weight: 600;
            color: var(--clr-accent);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: gap 0.25s ease;
        }
        .card-modern .card-link:hover { gap: 0.7rem; color: var(--clr-accent-hover); }

        /* ===== Stats / Data ===== */
        .stats-section {
            background: var(--clr-bg-white);
            border-top: 1px solid var(--clr-border);
            border-bottom: 1px solid var(--clr-border);
        }
        .stats-item {
            text-align: center;
            padding: 1.5rem 0.5rem;
        }
        .stats-item .stats-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--clr-accent);
            line-height: 1.1;
            margin-bottom: 0.25rem;
        }
        .stats-item .stats-label {
            font-size: 0.95rem;
            color: var(--clr-muted);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-item .stats-number { font-size: 2.2rem; }
        }

        /* ===== News / CMS List ===== */
        .news-card {
            background: var(--clr-bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .news-card .news-img {
            aspect-ratio: 16 / 9;
            object-fit: cover;
            width: 100%;
        }
        .news-card .news-body { padding: 1.25rem; }
        .news-card .news-cat {
            display: inline-block;
            background: rgba(42,10,64,0.08);
            color: var(--clr-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
        }
        .news-card .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--clr-title);
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-excerpt {
            font-size: 0.9rem;
            color: var(--clr-body);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
            line-height: 1.5;
        }
        .news-card .news-meta {
            font-size: 0.8rem;
            color: var(--clr-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .news-card .news-meta i { margin-right: 0.2rem; }
        .news-card .news-link {
            font-weight: 600;
            color: var(--clr-accent);
            font-size: 0.85rem;
            transition: color 0.2s;
        }
        .news-card .news-link:hover { color: var(--clr-accent-hover); }
        .empty-news {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--clr-muted);
            background: var(--clr-bg-white);
            border-radius: var(--radius-card);
        }
        .empty-news i { font-size: 3rem; color: var(--clr-border); margin-bottom: 1rem; }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: var(--gradient-hero);
            padding: 60px 0;
            color: #fff;
            text-align: center;
        }
        .cta-banner h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-banner p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            margin: 0 auto 1.8rem auto;
        }
        .cta-banner .btn-cta {
            background: var(--clr-accent);
            color: #fff;
            border: none;
            padding: 0.85rem 3rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(255,90,54,0.35);
        }
        .cta-banner .btn-cta:hover {
            background: var(--clr-accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255,90,54,0.45);
            color: #fff;
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--clr-bg-white); }
        .faq-item {
            border-bottom: 1px solid var(--clr-border);
            padding: 1.2rem 0;
        }
        .faq-item:last-child { border-bottom: none; }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--clr-title);
            padding: 0.25rem 0;
            transition: color 0.2s;
        }
        .faq-question:hover { color: var(--clr-accent); }
        .faq-question i { font-size: 1.2rem; transition: transform 0.3s ease; color: var(--clr-muted); }
        .faq-question.open i { transform: rotate(180deg); color: var(--clr-accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 0.5rem;
            color: var(--clr-body);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0.75rem 0.5rem 0.25rem;
        }

        /* ===== Modal / Popup ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.55);
            backdrop-filter: blur(4px);
            z-index: 2000;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }
        .modal-overlay.active { display: flex; }
        .modal-box {
            background: var(--clr-bg-white);
            border-radius: var(--radius-card);
            padding: 2.5rem 2rem 1.8rem;
            max-width: 500px;
            width: 100%;
            position: relative;
            box-shadow: 0 24px 60px rgba(0,0,0,0.30);
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal-box .btn-close-modal {
            position: absolute;
            top: 1rem;
            right: 1.2rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--clr-muted);
            cursor: pointer;
            transition: color 0.2s;
        }
        .modal-box .btn-close-modal:hover { color: var(--clr-error); }
        .modal-box h4 { font-weight: 700; margin-bottom: 0.5rem; color: var(--clr-title); }
        .modal-box .modal-desc { font-size: 0.9rem; color: var(--clr-muted); margin-bottom: 1.5rem; }
        .modal-box .form-control {
            border-radius: var(--radius-sm);
            border: 1px solid var(--clr-border);
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
            transition: border 0.25s ease, box-shadow 0.25s ease;
        }
        .modal-box .form-control:focus {
            border-color: var(--clr-accent);
            box-shadow: 0 0 0 3px rgba(255,90,54,0.12);
        }
        .modal-box .btn-submit {
            background: var(--gradient-btn);
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            width: 100%;
            transition: all 0.3s ease;
        }
        .modal-box .btn-submit:hover { opacity: 0.92; transform: translateY(-1px); }
        .modal-box .privacy-note {
            font-size: 0.75rem;
            color: var(--clr-muted);
            text-align: center;
            margin-top: 1rem;
        }
        .modal-box .privacy-note a { color: var(--clr-primary-light); text-decoration: underline; }

        /* ===== Footer ===== */
        .footer-main {
            background: var(--clr-dark-alt);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 30px;
        }
        .footer-main h5 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .footer-main .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }
        .footer-main .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--gradient-hero);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
        }
        .footer-main .footer-desc { font-size: 0.9rem; line-height: 1.7; margin-bottom: 1.2rem; }
        .footer-main .footer-links a {
            display: block;
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            padding: 0.25rem 0;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }
        .footer-main .footer-links a:hover { color: var(--clr-accent); padding-left: 4px; }
        .footer-main .footer-contact p { font-size: 0.9rem; margin-bottom: 0.4rem; display: flex; align-items: center; gap: 0.5rem; }
        .footer-main .footer-contact i { color: var(--clr-accent); width: 18px; }
        .footer-main .social-links { display: flex; gap: 0.8rem; margin-top: 1rem; }
        .footer-main .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: background 0.25s ease, color 0.25s ease;
        }
        .footer-main .social-links a:hover { background: var(--clr-accent); color: #fff; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.45);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.5rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.55); }
        .footer-bottom a:hover { color: var(--clr-accent); }
        @media (max-width: 768px) {
            .footer-main { padding: 40px 0 20px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Privacy Note ===== */
        .privacy-bar {
            background: var(--clr-bg);
            padding: 0.75rem 0;
            font-size: 0.8rem;
            color: var(--clr-muted);
            text-align: center;
            border-top: 1px solid var(--clr-border);
        }
        .privacy-bar a { color: var(--clr-primary-light); text-decoration: underline; }

        /* ===== Badge / Tag ===== */
        .badge-cat {
            display: inline-block;
            background: rgba(42,10,64,0.08);
            color: var(--clr-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
        }

        /* ===== Misc ===== */
        .seo-meta { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
        .text-accent { color: var(--clr-accent); }
        .bg-primary-dark { background: var(--clr-dark); }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 576px) {
            .section-title { font-size: 1.5rem; }
            .section-subtitle { font-size: 0.95rem; }
            .card-modern { padding: 1.2rem; }
            .cta-banner h2 { font-size: 1.5rem; }
            .modal-box { padding: 1.8rem 1.2rem 1.2rem; }
        }

/* roulang page: article */
/* ========== :root 设计变量 ========== */
        :root {
            --primary: #2A0A40;
            --primary-light: #5B2A8C;
            --primary-gradient: linear-gradient(135deg, #2A0A40, #5B2A8C);
            --accent: #FF5A36;
            --accent-hover: #e04a2a;
            --bg-light: #F4F6F9;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --text-title: #1A0A2E;
            --text-body: #3D3D4A;
            --text-muted: #7A7A8F;
            --text-white: #FFFFFF;
            --border-radius-card: 12px;
            --border-radius-sm: 8px;
            --shadow-card: 0 4px 12px rgba(42, 10, 64, 0.08);
            --shadow-card-hover: 0 8px 24px rgba(42, 10, 64, 0.15);
            --shadow-nav: 0 2px 8px rgba(0, 0, 0, 0.06);
            --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --transition: 0.3s ease;
            --max-width: 1200px;
            --gutter-x: 2rem;
        }

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

        body {
            font-family: var(--font-family);
            background-color: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 1rem;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-title);
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
        }

        /* ========== 容器 ========== */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
            width: 100%;
        }

        /* ========== 导航 ========== */
        .navbar-main {
            background: var(--bg-white);
            box-shadow: var(--shadow-nav);
            padding: 0 1.5rem;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .navbar-main .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary) !important;
            padding: 0;
        }
        .navbar-main .navbar-brand .brand-icon {
            color: var(--accent);
            font-size: 1.8rem;
        }
        .navbar-main .navbar-brand .brand-sub {
            font-weight: 400;
            font-size: 1rem;
            color: var(--text-muted);
        }
        .navbar-main .nav-link {
            color: var(--text-body) !important;
            font-weight: 500;
            padding: 0.75rem 1rem !important;
            border-radius: var(--border-radius-sm);
            transition: color var(--transition), background var(--transition);
            position: relative;
        }
        .navbar-main .nav-link:hover,
        .navbar-main .nav-link:focus {
            color: var(--primary) !important;
            background: rgba(42, 10, 64, 0.04);
        }
        .navbar-main .nav-link.active {
            color: var(--accent) !important;
            background: rgba(255, 90, 54, 0.08);
        }
        .navbar-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--accent);
            border-radius: 2px 2px 0 0;
        }
        .navbar-main .navbar-toggler {
            border: none;
            color: var(--primary);
            font-size: 1.5rem;
            padding: 0.25rem 0.5rem;
        }
        .navbar-main .navbar-toggler:focus {
            box-shadow: none;
        }
        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }
        .search-box input {
            border: 1px solid #e0e0e8;
            border-radius: 20px;
            padding: 0.4rem 1rem 0.4rem 2.2rem;
            font-size: 0.875rem;
            background: var(--bg-light);
            color: var(--text-body);
            width: 180px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .search-box input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 90, 54, 0.15);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .search-box i {
            position: absolute;
            left: 0.75rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .hot-trend {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .hot-trend i {
            color: var(--accent);
        }
        .hot-trend span {
            background: rgba(255, 90, 54, 0.1);
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            color: var(--accent);
            font-weight: 500;
            cursor: default;
            transition: background var(--transition);
        }
        .hot-trend span:hover {
            background: rgba(255, 90, 54, 0.2);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-area {
            background: var(--bg-white);
            padding: 1rem 0;
            border-bottom: 1px solid #eaeaf0;
        }
        .breadcrumb-area .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-area .breadcrumb-item {
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .breadcrumb-area .breadcrumb-item a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .breadcrumb-area .breadcrumb-item a:hover {
            color: var(--accent);
        }
        .breadcrumb-area .breadcrumb-item.active {
            color: var(--text-body);
            font-weight: 500;
        }
        .breadcrumb-area .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-muted);
            content: '/';
        }

        /* ========== 文章正文区 ========== */
        .article-section {
            padding: 3rem 0 4rem;
        }
        .article-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }
        .article-header {
            margin-bottom: 2rem;
        }
        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.2rem;
            font-size: 0.9rem;
            color: var(--text-muted);
            align-items: center;
        }
        .article-meta .badge-cat {
            background: var(--primary);
            color: var(--text-white);
            padding: 0.2rem 0.8rem;
            border-radius: var(--border-radius-sm);
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-meta span i {
            margin-right: 0.3rem;
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-body);
        }
        .article-content p {
            margin-bottom: 1.5rem;
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-title);
        }
        .article-content img {
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            margin: 1.5rem auto;
            max-width: 100%;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(255, 90, 54, 0.05);
            border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
            color: var(--text-body);
            font-style: italic;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content a:hover {
            color: var(--accent-hover);
        }
        .article-content .code-block {
            background: #1e1e2e;
            color: #cdd6f4;
            padding: 1.2rem;
            border-radius: var(--border-radius-sm);
            overflow-x: auto;
            font-family: 'Consolas', 'Monaco', monospace;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
        }

        /* ========== 文章未找到 ========== */
        .article-not-found {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-white);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
        }
        .article-not-found i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        .article-not-found h3 {
            color: var(--text-title);
            margin-bottom: 1rem;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.8rem;
            background: var(--accent);
            color: var(--text-white);
            border-radius: 30px;
            font-weight: 600;
            border: none;
            transition: background var(--transition), transform var(--transition);
        }
        .article-not-found .btn-back:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 3rem 0;
            background: var(--bg-white);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 2rem;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .related-card {
            background: var(--bg-white);
            border-radius: var(--border-radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid #eeeef4;
        }
        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .related-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 1.2rem;
        }
        .related-card .card-body h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .badge-cat-sm {
            background: var(--primary);
            color: var(--text-white);
            padding: 0.1rem 0.6rem;
            border-radius: var(--border-radius-sm);
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* ========== 返回按钮 ========== */
        .back-bar {
            margin-top: 2.5rem;
            display: flex;
            justify-content: flex-end;
        }
        .back-bar .btn-back-list {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.8rem;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 30px;
            font-weight: 600;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .back-bar .btn-back-list:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* ========== 页脚 ========== */
        .footer-main {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }
        .footer-main .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .footer-main .footer-brand .brand-icon {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }
        .footer-main .social-links {
            display: flex;
            gap: 0.8rem;
        }
        .footer-main .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-main .social-links a:hover {
            background: var(--accent);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .footer-main h5 {
            color: var(--text-white);
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
        }
        .footer-main .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-main .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-main .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-main .footer-contact p {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0.6rem;
        }
        .footer-main .footer-contact i {
            color: var(--accent);
            font-size: 1rem;
        }
        .footer-main .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            margin-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-main .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition);
        }
        .footer-main .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== SEO 元数据隐藏区 ========== */
        .seo-meta {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 992px) {
            .navbar-main {
                padding: 0 1rem;
            }
            .navbar-main .navbar-brand {
                font-size: 1.3rem;
            }
            .navbar-main .navbar-brand .brand-sub {
                font-size: 0.85rem;
            }
            .search-box input {
                width: 140px;
            }
            .article-header h1 {
                font-size: 1.8rem;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .navbar-main .navbar-collapse {
                padding: 1rem 0;
            }
            .navbar-main .nav-link {
                padding: 0.5rem 0.75rem !important;
                font-size: 0.95rem;
            }
            .navbar-main .nav-link.active::after {
                left: 0.75rem;
                right: 0.75rem;
            }
            .search-box {
                width: 100%;
                margin: 0.5rem 0;
            }
            .search-box input {
                width: 100%;
            }
            .hot-trend {
                margin: 0.5rem 0;
                justify-content: center;
            }
            .article-section {
                padding: 2rem 0 3rem;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .footer-main .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .container-custom {
                padding: 0 0.75rem;
            }
            .article-header h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
                align-items: flex-start;
            }
            .back-bar {
                justify-content: center;
            }
            .footer-main {
                padding: 2rem 0 1rem;
            }
        }

        /* ========== 通用辅助 ========== */
        .text-accent {
            color: var(--accent);
        }
        .bg-primary-gradient {
            background: var(--primary-gradient);
        }
        .rounded-card {
            border-radius: var(--border-radius-card);
        }
        .shadow-card {
            box-shadow: var(--shadow-card);
        }
        .transition {
            transition: var(--transition);
        }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #2A0A40;
            --primary-dark: #1A0A2E;
            --primary-light: #5B2A8C;
            --accent: #FF5A36;
            --accent-hover: #E04A28;
            --bg-main: #F4F6F9;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --text-title: #1A0A2E;
            --text-body: #3D3D4A;
            --text-muted: #7A7A8F;
            --text-light: #F4F6F9;
            --border-color: #E6E8F0;
            --success: #2ECC71;
            --warning: #F1C40F;
            --danger: #E74C3C;
            --radius-card: 12px;
            --radius-btn: 12px;
            --radius-input: 8px;
            --shadow-card: 0 4px 12px rgba(42,10,64,0.08);
            --shadow-hover: 0 8px 24px rgba(42,10,64,0.15);
            --shadow-nav: 0 2px 8px rgba(0,0,0,0.06);
            --transition: 0.3s ease;
            --font-stack: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --max-width: 1200px;
            --gutter-x: 2rem;
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-stack);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-main);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-title); }
        p { margin-bottom: 1rem; }
        ul, ol { padding-left: 1.25rem; }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* ===== 导航 ===== */
        .navbar-main {
            background: var(--bg-white);
            box-shadow: var(--shadow-nav);
            padding: 0.25rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .navbar-main.scrolled {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            box-shadow: 0 4px 16px rgba(42,10,64,0.10);
        }
        .navbar-main .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary) !important;
            padding: 0;
        }
        .navbar-main .navbar-brand .brand-icon {
            color: var(--accent);
            font-size: 1.6rem;
            display: flex;
            align-items: center;
        }
        .navbar-main .navbar-brand .brand-sub {
            font-size: 0.85rem;
            font-weight: 400;
            color: var(--text-muted);
            margin-left: 0.15rem;
        }
        .navbar-main .nav-link {
            color: var(--text-body) !important;
            font-weight: 500;
            padding: 0.5rem 1rem !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .navbar-main .nav-link:hover,
        .navbar-main .nav-link:focus-visible {
            color: var(--primary) !important;
            background: rgba(42,10,64,0.05);
        }
        .navbar-main .nav-link.active {
            color: var(--accent) !important;
            background: rgba(255,90,54,0.08);
        }
        .navbar-main .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 0.25rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .search-box {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--bg-main);
            border-radius: 24px;
            padding: 0.4rem 1rem;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            min-width: 200px;
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255,90,54,0.15);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.25rem 0.5rem 0.25rem 0;
            font-size: 0.9rem;
            width: 100%;
            outline: none;
            color: var(--text-body);
        }
        .search-box input::placeholder { color: var(--text-muted); }
        .search-box i {
            color: var(--text-muted);
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-box i:hover { color: var(--accent); }
        .hot-trend {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .hot-trend i { color: var(--accent); }
        .hot-trend span {
            background: rgba(255,90,54,0.08);
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            color: var(--accent);
            font-weight: 500;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-white);
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-bar .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .breadcrumb-bar .breadcrumb-item a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .breadcrumb-bar .breadcrumb-item a:hover { color: var(--accent); }
        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ===== Hero 分类横幅 ===== */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #1A0A2E 0%, #2A0A40 40%, #5B2A8C 100%);
            padding: 80px 0 60px;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .category-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(26,10,46,0.85) 0%, rgba(42,10,64,0.50) 100%);
            z-index: 1;
        }
        .category-hero .container-custom { position: relative; z-index: 2; }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            text-shadow: 0 2px 12px rgba(0,0,0,0.30);
        }
        .category-hero .hero-sub {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .category-hero .hero-meta .badge-safe {
            background: rgba(255,90,54,0.20);
            color: #FF8A6A;
            padding: 0.4rem 1rem;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255,90,54,0.25);
        }
        .category-hero .hero-meta .badge-safe i { margin-right: 0.4rem; }
        .category-hero .hero-img-wrap {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero .hero-img-wrap img {
            max-height: 340px;
            border-radius: var(--radius-card);
            box-shadow: 0 20px 40px rgba(0,0,0,0.35);
            object-fit: cover;
            width: 100%;
        }

        /* ===== 板块通用 ===== */
        .section-padding { padding: 80px 0; }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }
        .bg-white-section { background: var(--bg-white); }
        .bg-light-section { background: var(--bg-main); }
        .bg-dark-section {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.85);
        }
        .bg-dark-section .section-title { color: #fff; }
        .bg-dark-section .section-subtitle { color: rgba(255,255,255,0.70); }

        /* ===== 卡片现代 ===== */
        .card-modern {
            background: var(--bg-white);
            border: none;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 1.5rem;
            transition: var(--transition);
            height: 100%;
        }
        .card-modern:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-modern .card-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 0.75rem;
        }
        .card-modern h5 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-title);
        }
        .card-modern p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        .card-modern .card-link {
            margin-top: 0.75rem;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            color: var(--accent);
            font-weight: 500;
            font-size: 0.9rem;
        }
        .card-modern .card-link i { transition: var(--transition); }
        .card-modern .card-link:hover i { transform: translateX(4px); }

        /* ===== 标签 / 徽章 ===== */
        .badge-cat {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 0.2rem 0.75rem;
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 500;
        }
        .badge-accent {
            background: var(--accent);
            color: #fff;
            padding: 0.2rem 0.75rem;
            border-radius: 8px;
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* ===== 统计数字 ===== */
        .stat-block {
            text-align: center;
            padding: 1.5rem 0.5rem;
        }
        .stat-block .stat-number {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-block .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* ===== 流程步骤 ===== */
        .step-card {
            text-align: center;
            padding: 2rem 1rem;
            position: relative;
        }
        .step-card .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.4rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 6px 16px rgba(42,10,64,0.20);
        }
        .step-card h5 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.5rem; }
        .step-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 0; }
        .step-connector {
            position: absolute;
            top: 2.6rem;
            right: -1.5rem;
            width: 3rem;
            height: 2px;
            background: var(--border-color);
        }
        @media (max-width: 767.98px) {
            .step-connector { display: none; }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-hover); }
        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-title);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-white);
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 1rem;
        }
        .faq-question i {
            font-size: 1.2rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, #2A0A40, #5B2A8C);
            border-radius: var(--radius-card);
            padding: 3rem 2.5rem;
            text-align: center;
            color: #fff;
            box-shadow: 0 12px 40px rgba(42,10,64,0.25);
        }
        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            font-size: 1.05rem;
            opacity: 0.85;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }
        .cta-block .btn-cta {
            background: var(--accent);
            border: none;
            padding: 0.75rem 2.5rem;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            color: #fff;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(255,90,54,0.30);
        }
        .cta-block .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255,90,54,0.40);
        }
        .cta-block .btn-cta-outline {
            background: transparent;
            border: 2px solid rgba(255,255,255,0.40);
            padding: 0.7rem 2rem;
            font-size: 1rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            color: #fff;
            transition: var(--transition);
            margin-left: 0.75rem;
        }
        .cta-block .btn-cta-outline:hover {
            background: rgba(255,255,255,0.10);
            border-color: #fff;
        }
        @media (max-width: 575.98px) {
            .cta-block .btn-cta-outline { margin-left: 0; margin-top: 0.75rem; }
        }

        /* ===== 按钮通用 ===== */
        .btn-main {
            background: var(--accent);
            border: none;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            color: #fff;
            transition: var(--transition);
        }
        .btn-main:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,90,54,0.30);
            color: #fff;
        }
        .btn-outline-main {
            background: transparent;
            border: 2px solid var(--accent);
            padding: 0.5rem 1.6rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            color: var(--accent);
            transition: var(--transition);
        }
        .btn-outline-main:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 安全要点列表 ===== */
        .safety-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .safety-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.6rem 0;
            font-size: 1rem;
            color: var(--text-body);
            border-bottom: 1px solid var(--border-color);
        }
        .safety-list li:last-child { border-bottom: none; }
        .safety-list li i {
            color: var(--success);
            font-size: 1.2rem;
            flex-shrink: 0;
            margin-top: 0.15rem;
        }

        /* ===== 图文区块 ===== */
        .media-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 2.5rem;
        }
        .media-block .media-img {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .media-block .media-img img {
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
        }
        .media-block .media-text {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .media-block .media-text h3 {
            font-size: 1.6rem;
            margin-bottom: 0.75rem;
        }
        .media-block .media-text p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* ===== 弹层 ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.55);
            z-index: 9999;
            display: none;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(6px);
        }
        .modal-overlay.active { display: flex; }
        .modal-box {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 2rem 2rem 1.5rem;
            width: 100%;
            max-width: 500px;
            margin: 1rem;
            position: relative;
            box-shadow: 0 24px 60px rgba(0,0,0,0.30);
            max-height: 90vh;
            overflow-y: auto;
        }
        .modal-box .close-btn {
            position: absolute;
            top: 1rem;
            right: 1.2rem;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            line-height: 1;
        }
        .modal-box .close-btn:hover { color: var(--accent); transform: rotate(90deg); }
        .modal-box h4 {
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-title);
        }
        .modal-box .modal-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.25rem;
        }
        .modal-box .form-control {
            border-radius: var(--radius-input);
            border: 1px solid var(--border-color);
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .modal-box .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255,90,54,0.12);
        }
        .modal-box .btn-submit {
            background: var(--accent);
            border: none;
            padding: 0.65rem 1.5rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            color: #fff;
            width: 100%;
            transition: var(--transition);
        }
        .modal-box .btn-submit:hover { background: var(--accent-hover); }
        .modal-box .privacy-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 0.75rem;
        }
        .modal-box .privacy-note a { color: var(--accent); text-decoration: underline; }

        /* ===== 页脚 ===== */
        .footer-main {
            background: #1A0A2E;
            color: rgba(255,255,255,0.75);
            padding: 60px 0 0;
        }
        .footer-main .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
        }
        .footer-main .footer-brand .brand-icon { color: var(--accent); font-size: 1.5rem; }
        .footer-main .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 1rem;
            color: rgba(255,255,255,0.60);
        }
        .footer-main h5 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-main .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-main .footer-links a {
            color: rgba(255,255,255,0.60);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-main .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-main .footer-contact p {
            font-size: 0.9rem;
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: rgba(255,255,255,0.60);
        }
        .footer-main .footer-contact i { color: var(--accent); width: 1.2rem; }
        .footer-main .social-links {
            display: flex;
            gap: 0.75rem;
            margin-top: 0.5rem;
        }
        .footer-main .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.60);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-main .social-links a:hover {
            background: var(--accent);
            color: #fff;
            transform: scale(1.08);
        }
        .footer-bottom {
            margin-top: 2.5rem;
            padding: 1.25rem 0;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.40);
        }
        .footer-bottom a { color: rgba(255,255,255,0.50); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .navbar-main .navbar-collapse {
                padding: 1rem 0;
            }
            .navbar-main .nav-link.active::after { display: none; }
            .search-box { min-width: 100%; margin-top: 0.5rem; }
            .hot-trend { margin-top: 0.5rem; }
            .category-hero { padding: 60px 0 40px; min-height: auto; }
            .category-hero h1 { font-size: 2rem; }
            .category-hero .hero-sub { font-size: 1rem; }
            .category-hero .hero-img-wrap { margin-top: 2rem; }
            .section-padding { padding: 60px 0; }
            .section-title { font-size: 1.6rem; }
            .stat-block .stat-number { font-size: 2rem; }
            .media-block { gap: 1.5rem; }
            .cta-block { padding: 2rem 1.5rem; }
            .cta-block h3 { font-size: 1.4rem; }
        }
        @media (max-width: 767.98px) {
            .category-hero h1 { font-size: 1.6rem; }
            .category-hero .hero-sub { font-size: 0.9rem; }
            .section-padding { padding: 40px 0; }
            .section-title { font-size: 1.4rem; }
            .section-subtitle { font-size: 0.95rem; margin-bottom: 1.5rem; }
            .card-modern { padding: 1.25rem; }
            .stat-block { padding: 1rem 0.5rem; }
            .stat-block .stat-number { font-size: 1.8rem; }
            .footer-main { padding: 40px 0 0; }
            .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
            .modal-box { padding: 1.5rem; }
        }
        @media (max-width: 575.98px) {
            .navbar-main .navbar-brand { font-size: 1.1rem; }
            .navbar-main .navbar-brand .brand-sub { display: none; }
            .category-hero { padding: 40px 0 30px; }
            .category-hero h1 { font-size: 1.4rem; }
            .cta-block h3 { font-size: 1.2rem; }
            .cta-block .btn-cta, .cta-block .btn-cta-outline { width: 100%; }
        }

        /* ===== 辅助 ===== */
        .text-accent { color: var(--accent); }
        .text-primary-custom { color: var(--primary); }
        .bg-gradient-primary { background: linear-gradient(135deg, #2A0A40, #5B2A8C); }
        .rounded-card { border-radius: var(--radius-card); }
        .shadow-card-hover { transition: var(--transition); }
        .shadow-card-hover:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .gap-section { gap: 2rem 0; }