/* roulang page: index */
:root {
            --primary: #0E6B5C;
            --primary-hover: #0B584C;
            --primary-light: rgba(14, 107, 92, 0.08);
            --accent: #E89B3C;
            --accent-light: rgba(232, 155, 60, 0.12);
            --bg: #F7F5F1;
            --dark: #0E2A26;
            --text: #22332F;
            --text-muted: #6B7A76;
            --border: rgba(14, 107, 92, 0.12);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow: 0 10px 30px rgba(14, 107, 92, 0.08);
            --shadow-hover: 0 16px 40px rgba(14, 107, 92, 0.16);
            --gradient: linear-gradient(135deg, #0E6B5C 0%, #12876F 45%, #1DA088 70%, #E89B3C 130%);
            --section-space: 80px;
        }

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

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.75;
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

        .container {
            max-width: 1200px;
        }

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

        @media (max-width: 768px) {
            :root {
                --section-space: 48px;
            }
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(14, 42, 38, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(247, 245, 241, 0.96);
            box-shadow: 0 6px 24px rgba(14, 42, 38, 0.08);
            border-bottom-color: rgba(14, 107, 92, 0.08);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .site-header.scrolled .navbar-brand {
            color: var(--text);
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient);
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 14px rgba(14, 107, 92, 0.3);
        }

        .navbar .nav-link {
            color: rgba(255, 255, 255, 0.88);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: var(--radius-pill);
            transition: color .25s, background .25s;
        }

        .site-header.scrolled .navbar .nav-link {
            color: var(--text);
        }

        .navbar .nav-link:hover,
        .navbar .nav-link.active {
            color: var(--accent) !important;
            background: rgba(232, 155, 60, 0.1);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            font-weight: 500;
            color: #fff;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .site-header.scrolled .status-badge {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--border);
        }

        .status-badge .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #4ADE80;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.7); }
            70% { box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
            100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
        }

        .btn-nav-cta {
            padding: 8px 22px !important;
            border-radius: var(--radius-md) !important;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--gradient);
            color: #fff;
            border: none;
            transition: transform .25s, box-shadow .25s;
        }

        .btn-nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 155, 60, 0.3);
            color: #fff;
        }

        .navbar-toggler {
            border-color: rgba(255, 255, 255, 0.3);
        }

        .site-header.scrolled .navbar-toggler {
            border-color: rgba(14, 107, 92, 0.3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .site-header.scrolled .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(14,107,92,0.9)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: rgba(14, 42, 38, 0.98);
                border-radius: var(--radius-lg);
                padding: 16px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }

            .site-header.scrolled .navbar-collapse {
                background: rgba(247, 245, 241, 0.98);
                border-color: var(--border);
            }

            .nav-right {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
            }

            .status-badge {
                justify-content: center;
            }

            .btn-nav-cta {
                text-align: center;
            }
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            padding: 150px 0 90px;
            background:
                linear-gradient(135deg, rgba(14, 42, 38, 0.92) 0%, rgba(14, 107, 92, 0.88) 55%, rgba(29, 160, 136, 0.82) 100%),
                url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 44px 44px;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero h1 .highlight {
            color: var(--accent);
        }

        .hero-sub {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 30px;
            max-width: 560px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }

        .btn-primary-custom {
            padding: 12px 30px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            background: var(--gradient);
            border: none;
            color: #fff;
            box-shadow: 0 8px 24px rgba(14, 107, 92, 0.35);
            transition: transform .25s, box-shadow .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(14, 107, 92, 0.45);
            color: #fff;
        }

        .btn-outline-custom {
            padding: 12px 30px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            transition: background .25s, border-color .25s, transform .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-3px);
        }

        .btn:focus-visible,
        .btn-primary-custom:focus-visible,
        .btn-outline-custom:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible,
        .accordion-button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            box-shadow: none;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

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

        .metric-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            backdrop-filter: blur(6px);
            transition: transform .3s, background .3s;
            text-align: center;
        }

        .metric-card:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.16);
        }

        .metric-num {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            font-style: italic;
            color: var(--accent);
            line-height: 1.2;
            display: block;
        }

        .metric-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.85);
            margin-top: 4px;
            display: block;
        }

        @media (max-width: 991.98px) {
            .hero {
                padding: 120px 0 60px;
            }

            .hero-right {
                margin-top: 40px;
            }

            .metric-grid {
                max-width: 480px;
            }
        }

        @media (max-width: 575.98px) {
            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-card {
                padding: 16px 14px;
            }
        }

        /* ---------- Section titles ---------- */
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.4rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            color: var(--text);
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 620px;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        /* ---------- Services ---------- */
        .services-section {
            background: var(--bg);
        }

        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
            overflow: hidden;
        }

        .service-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient);
            opacity: 0;
            transition: opacity .3s;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 107, 92, 0.25);
        }

        .service-card:hover::after {
            opacity: 1;
        }

        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 18px;
            border: 2px dashed rgba(14, 107, 92, 0.2);
            transition: background .3s, color .3s, transform .3s;
        }

        .service-card:hover .service-icon {
            background: var(--gradient);
            color: #fff;
            transform: scale(1.05);
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .service-link {
            font-weight: 600;
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .25s;
        }

        .service-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ---------- Comparison ---------- */
        .comparison-section {
            background: #fff;
            position: relative;
        }

        .comparison-header-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 36px;
        }

        .comparison-metric-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .compare-wrap {
            position: relative;
        }

        .compare-card {
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            height: 100%;
            border: none;
        }

        .compare-card.confusion {
            background: #F1EEE9;
            border: 1px solid rgba(14, 107, 92, 0.08);
        }

        .compare-card.verified {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.92);
        }

        .compare-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .compare-card.verified h3 {
            color: #fff;
        }

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

        .compare-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(14, 107, 92, 0.08);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .compare-card.verified .compare-list li {
            border-bottom-color: rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.85);
        }

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

        .compare-num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(14, 107, 92, 0.14);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .compare-card.verified .compare-num {
            background: rgba(232, 155, 60, 0.2);
            color: var(--accent);
        }

        .vs-badge {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--gradient);
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(14, 107, 92, 0.3);
            z-index: 3;
            border: 3px solid #fff;
        }

        @media (max-width: 767.98px) {
            .vs-badge {
                top: auto;
                left: 50%;
                transform: translateX(-50%);
                bottom: -30px;
            }

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

            .compare-card.verified {
                margin-top: 20px;
            }
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg);
        }

        .faq-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 4px 14px rgba(14, 107, 92, 0.04);
            transition: box-shadow .3s, border-color .3s;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left: 3px solid var(--primary);
            box-shadow: var(--shadow);
        }

        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            padding: 18px 22px;
            background: #fff;
            border-radius: var(--radius-md) !important;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='%230E6B5C' xmlns='http://www.w3.org/2000/svg'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform .3s;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #fafdfc;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .faq-accordion .accordion-body {
            padding: 4px 22px 20px;
            color: var(--text-muted);
            font-size: 0.94rem;
            line-height: 1.8;
            border-top: 1px solid rgba(14, 107, 92, 0.06);
        }

        .faq-mini-badge {
            display: inline-flex;
            align-items: center;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            font-size: 0.7rem;
            font-weight: 600;
            background: var(--accent-light);
            color: var(--accent);
            margin-left: 6px;
            flex-shrink: 0;
        }

        .faq-mini-badge.hot {
            background: rgba(232, 155, 60, 0.15);
            color: #D97A3A;
        }

        /* ---------- Contact form ---------- */
        .contact-section {
            background: linear-gradient(180deg, #F7F5F1 0%, #EDEAE4 100%);
            position: relative;
        }

        .contact-section::before {
            content: '';
            position: absolute;
            top: 40px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(14, 107, 92, 0.04);
            pointer-events: none;
        }

        .form-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            position: relative;
            z-index: 2;
            background-clip: padding-box;
            border: 1px solid transparent;
            background:
                linear-gradient(#fff, #fff) padding-box,
                var(--gradient) border-box;
        }

        .form-card .form-label {
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text);
            margin-bottom: 6px;
        }

        .form-card .form-control,
        .form-card .form-select {
            border-radius: var(--radius-md);
            border: 1px solid #D6DEDB;
            padding: 10px 16px;
            font-size: 0.92rem;
            transition: border-color .25s, box-shadow .25s;
            background: #fff;
        }

        .form-card .form-control:focus,
        .form-card .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(14, 107, 92, 0.12);
        }

        .form-card textarea.form-control {
            min-height: 100px;
        }

        .form-card .btn-submit {
            width: 100%;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            background: var(--gradient);
            color: #fff;
            font-weight: 700;
            border: none;
            font-size: 1rem;
            transition: transform .25s, box-shadow .25s, filter .25s;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .form-card .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(14, 107, 92, 0.35);
            filter: brightness(1.05);
            color: #fff;
        }

        .contact-info-card {
            background: var(--dark);
            border-radius: var(--radius-lg);
            padding: 36px;
            color: rgba(255, 255, 255, 0.88);
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .contact-info-card::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(232, 155, 60, 0.08);
        }

        .contact-info-card h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            margin-bottom: 20px;
        }

        .info-item i {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(232, 155, 60, 0.15);
            color: var(--accent);
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .info-item .info-title {
            font-weight: 600;
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }

        .info-item .info-text {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.5;
        }

        @media (max-width: 991.98px) {
            .form-card {
                padding: 28px 22px;
            }

            .contact-info-card {
                margin-top: 24px;
                padding: 28px 22px;
            }
        }

        /* ---------- Latest news ---------- */
        .news-section {
            background: var(--bg);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            display: flex;
            gap: 16px;
            transition: transform .25s, box-shadow .25s, border-color .25s;
            position: relative;
        }

        .news-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: rgba(14, 107, 92, 0.2);
        }

        .news-meta {
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex-shrink: 0;
            min-width: 90px;
        }

        .news-date-badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.78rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            text-align: center;
            white-space: nowrap;
            transition: background .25s, color .25s;
        }

        .news-item:hover .news-date-badge {
            background: var(--accent);
            color: #fff;
        }

        .news-cat {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            text-align: center;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-content h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.5;
            color: var(--text);
            transition: color .25s;
        }

        .news-content h3 a {
            color: inherit;
        }

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

        .news-content p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap .25s;
        }

        .news-link:hover {
            gap: 9px;
            color: var(--accent);
        }

        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow);
        }

        .news-sidebar h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text);
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 16px;
            position: relative;
        }

        .side-img img {
            width: 100%;
            min-height: 120px;
            object-fit: cover;
            transition: transform .4s;
        }

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

        .side-img .img-tag {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(14, 42, 38, 0.8);
            color: #fff;
            font-size: 0.7rem;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(4px);
        }

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

        .side-list li {
            padding: 8px 0;
            border-bottom: 1px dashed rgba(14, 107, 92, 0.1);
        }

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

        .side-list a {
            font-size: 0.88rem;
            color: var(--text);
            transition: color .25s;
            display: flex;
            align-items: center;
            gap: 6px;
        }

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

        .side-list a i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        .empty-state {
            background: #fff;
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 2rem;
            color: rgba(14, 107, 92, 0.3);
            margin-bottom: 12px;
            display: block;
        }

        @media (max-width: 767.98px) {
            .news-item {
                flex-direction: column;
                padding: 18px;
            }

            .news-meta {
                flex-direction: row;
                align-items: center;
                gap: 10px;
                min-width: 0;
            }

            .news-sidebar {
                margin-top: 24px;
            }
        }

        /* ---------- CTA band ---------- */
        .cta-band {
            background: var(--gradient);
            padding: 48px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 20%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .cta-band .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .cta-band h2 {
            font-size: clamp(1.3rem, 2.4vw, 1.9rem);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-band p {
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        .cta-band .btn-light-custom {
            padding: 12px 32px;
            border-radius: var(--radius-md);
            background: #fff;
            color: var(--primary);
            font-weight: 700;
            border: none;
            font-size: 0.95rem;
            transition: transform .25s, box-shadow .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .cta-band .btn-light-custom:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, 0.15);
            color: var(--primary);
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 64px 0 0;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

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

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
            margin-bottom: 24px;
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .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);
            font-size: 0.88rem;
            transition: color .25s, padding-left .25s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-links a i {
            font-size: 0.65rem;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            margin-top: 40px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        @media (max-width: 767.98px) {
            .site-footer {
                padding: 48px 0 0;
            }

            .footer-col {
                margin-bottom: 28px;
            }

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

        /* ---------- Floating CTA ---------- */
        .floating-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 1040;
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--gradient);
            color: #fff;
            border-radius: var(--radius-pill);
            padding: 12px 24px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 10px 30px rgba(14, 107, 92, 0.35);
            transition: transform .25s, box-shadow .25s;
            text-decoration: none;
        }

        .floating-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(14, 107, 92, 0.45);
            color: #fff;
        }

        .floating-cta i {
            font-size: 1rem;
        }

        @media (max-width: 575.98px) {
            .floating-cta {
                bottom: 16px;
                right: 16px;
                padding: 10px 18px;
                font-size: 0.85rem;
            }
        }

        .btn:active {
            transform: scale(0.97);
        }

/* roulang page: article */
/* ============ 设计变量 ============ */
        :root {
            --c-primary: #0E6B5C;
            --c-primary-dark: #0A5347;
            --c-primary-light: #12876F;
            --c-accent: #E89B3C;
            --c-bg: #F7F5F1;
            --c-dark: #0E2A26;
            --c-text: #243B36;
            --c-text-weak: #6B7A76;
            --c-border: rgba(14, 107, 92, 0.12);
            --c-success: #2E8B6A;
            --c-warning: #D97A3A;
            --gradient-main: linear-gradient(135deg, #0E6B5C 0%, #12876F 45%, #1DA088 70%, #E89B3C 130%);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 10px 30px rgba(14, 107, 92, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(14, 107, 92, 0.16);
            --space-section: 80px;
            --space-section-md: 48px;
        }

        /* ============ 基础重置 ============ */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--c-bg);
            color: var(--c-text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--c-primary);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--c-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            color: var(--c-dark);
        }
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .navbar-toggler:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
            border-color: var(--c-primary);
            box-shadow: 0 0 0 4px rgba(14, 107, 92, 0.12);
        }

        /* ============ 按钮 ============ */
        .btn {
            border-radius: var(--radius-md);
            padding: 10px 24px;
            font-weight: 600;
            transition: all .3s ease;
            border-width: 1px;
        }
        .btn-primary {
            background: var(--gradient-main);
            border: none;
            color: #fff;
            box-shadow: 0 6px 16px rgba(14, 107, 92, 0.18);
        }
        .btn-primary:hover {
            background: var(--c-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(14, 107, 92, 0.26);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(14, 107, 92, 0.2);
        }
        .btn-outline-primary {
            background: #fff;
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
        }
        .btn-outline-primary:hover {
            background: var(--c-primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 107, 92, 0.2);
        }
        .btn-outline-primary:active {
            transform: translateY(0);
        }

        /* ============ 导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 10px 0;
            background: #FDFCFA;
            box-shadow: 0 1px 0 rgba(14, 107, 92, 0.08);
            transition: background .4s ease, box-shadow .4s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(14, 107, 92, 0.1);
        }
        .navbar {
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.12rem;
            color: var(--c-dark);
            line-height: 1.3;
        }
        .navbar-brand:hover {
            color: var(--c-primary);
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-main);
            color: #fff;
            border-radius: 12px;
            font-size: 1.05rem;
            box-shadow: 0 6px 16px rgba(14, 107, 92, 0.3);
            flex-shrink: 0;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--c-text);
            padding: 8px 16px !important;
            border-radius: var(--radius-pill);
            transition: all .25s ease;
        }
        .navbar-nav .nav-link:hover {
            background: rgba(14, 107, 92, 0.08);
            color: var(--c-primary);
        }
        .navbar-nav .nav-link.active {
            background: rgba(14, 107, 92, 0.1);
            color: var(--c-primary);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: .78rem;
            background: linear-gradient(135deg, rgba(14, 107, 92, 0.12), rgba(232, 155, 60, 0.12));
            color: var(--c-primary);
            font-weight: 500;
        }
        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--c-success);
            position: relative;
        }
        .status-dot::after {
            content: "";
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            background: rgba(46, 139, 106, 0.4);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0% { transform: scale(.6); opacity: 1; }
            70% { transform: scale(1.8); opacity: 0; }
            100% { opacity: 0; }
        }
        .btn-nav-cta {
            padding: 8px 20px;
            font-size: .9rem;
        }
        .navbar-toggler {
            border: 1px solid var(--c-border);
            border-radius: 10px;
            color: var(--c-primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(14, 107, 92, 0.12);
        }
        .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='rgba(14,107,92,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ============ 面包屑 ============ */
        .article-breadcrumb {
            background: linear-gradient(135deg, rgba(14, 107, 92, 0.06), rgba(232, 155, 60, 0.06));
            border-bottom: 1px solid var(--c-border);
            padding: 14px 0;
        }
        .article-breadcrumb .breadcrumb {
            margin-bottom: 0;
        }
        .article-breadcrumb .breadcrumb-item {
            font-size: .875rem;
            color: var(--c-text-weak);
        }
        .article-breadcrumb .breadcrumb-item a {
            color: var(--c-text-weak);
            transition: color .25s ease;
        }
        .article-breadcrumb .breadcrumb-item a:hover {
            color: var(--c-primary);
        }
        .article-breadcrumb .breadcrumb-item.active {
            color: var(--c-primary);
            font-weight: 500;
        }
        .article-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
            color: rgba(14, 107, 92, 0.25);
        }

        /* ============ 文章主体 ============ */
        .article-container {
            padding: 48px 0 72px;
        }
        .article-main {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 48px 52px;
            margin-top: 24px;
            border: 1px solid rgba(14, 107, 92, 0.06);
        }
        .article-inner {
            max-width: 720px;
            margin: 0 auto;
        }
        .article-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--c-dark);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            font-size: .875rem;
            color: var(--c-text-weak);
            margin-bottom: 26px;
            padding-bottom: 24px;
            border-bottom: 1px dashed var(--c-border);
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .meta-item i {
            color: var(--c-accent);
            font-size: .9rem;
        }
        .meta-category {
            background: rgba(14, 107, 92, 0.08);
            color: var(--c-primary);
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            font-weight: 500;
        }
        .article-lead {
            font-size: 1.05rem;
            color: var(--c-text-weak);
            line-height: 1.85;
            margin-bottom: 30px;
            padding: 18px 22px;
            background: rgba(232, 155, 60, 0.06);
            border-left: 4px solid var(--c-accent);
            border-radius: 0 12px 12px 0;
        }
        .article-cover {
            margin: 0 0 34px;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .article-cover img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        /* ============ 正文排版 ============ */
        .article-content {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--c-text);
        }
        .article-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--c-dark);
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(14, 107, 92, 0.08);
        }
        .article-content h4 {
            font-size: 1.12rem;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--c-dark);
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content blockquote {
            background: rgba(14, 107, 92, 0.05);
            border-left: 4px solid var(--c-primary);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--c-text-weak);
            font-size: .95rem;
        }
        .article-content blockquote p {
            margin-bottom: 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content li::marker {
            color: var(--c-primary);
        }
        .article-content img {
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            margin: 24px 0;
            width: 100%;
            object-fit: cover;
        }
        .article-content a {
            color: var(--c-primary);
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .article-content a:hover {
            color: var(--c-accent);
        }
        .article-content strong {
            color: var(--c-dark);
            font-weight: 600;
        }
        .article-content pre {
            background: var(--c-dark);
            color: #E8F1EE;
            padding: 18px 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 20px 0;
            font-size: .88rem;
            line-height: 1.7;
        }
        .article-content code {
            background: rgba(14, 107, 92, 0.08);
            color: var(--c-primary);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .88em;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: .9rem;
        }
        .article-content th,
        .article-content td {
            border: 1px solid rgba(14, 107, 92, 0.15);
            padding: 10px 14px;
        }
        .article-content th {
            background: rgba(14, 107, 92, 0.06);
            font-weight: 600;
        }

        /* ============ 标签区 ============ */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 38px;
            padding-top: 28px;
            border-top: 1px dashed var(--c-border);
        }
        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(14, 107, 92, 0.06);
            color: var(--c-primary);
            border-radius: var(--radius-pill);
            font-size: .82rem;
            font-weight: 500;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .article-tags .tag:hover {
            background: var(--c-accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 14px rgba(232, 155, 60, 0.3);
        }

        /* ============ 空状态 ============ */
        .article-empty {
            text-align: center;
            padding: 70px 20px;
            max-width: 520px;
            margin: 0 auto;
        }
        .empty-icon {
            width: 76px;
            height: 76px;
            margin: 0 auto 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(14, 107, 92, 0.08);
            color: var(--c-primary);
            font-size: 1.6rem;
        }
        .article-empty h1 {
            font-size: 1.9rem;
            margin-bottom: 14px;
        }
        .article-empty p {
            color: var(--c-text-weak);
            margin-bottom: 28px;
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            background: var(--c-bg);
            padding: 64px 0 80px;
            border-top: 1px solid var(--c-border);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .8rem;
            font-weight: 600;
            color: var(--c-accent);
            background: rgba(232, 155, 60, 0.12);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--c-dark);
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .section-sub {
            color: var(--c-text-weak);
            font-size: .95rem;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--c-border);
            box-shadow: var(--shadow-card);
            height: 100%;
            display: block;
            transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(14, 107, 92, 0.3);
        }
        .related-card:hover .card-title {
            color: var(--c-primary);
        }
        .related-card .card-cover {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .related-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .related-card .card-line {
            background: var(--gradient-main);
            height: 4px;
            width: 100%;
            display: block;
        }
        .related-card .card-body {
            padding: 22px 24px 26px;
        }
        .related-card .card-cat {
            display: inline-block;
            font-size: .75rem;
            color: var(--c-accent);
            background: rgba(232, 155, 60, 0.12);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-weight: 600;
        }
        .related-card .card-title {
            font-size: 1.06rem;
            font-weight: 600;
            color: var(--c-dark);
            line-height: 1.45;
            margin: 12px 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color .25s ease;
        }
        .related-card .card-excerpt {
            font-size: .875rem;
            color: var(--c-text-weak);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }
        .related-card .card-foot {
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px dashed var(--c-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .related-card .card-date {
            font-size: .8rem;
            color: var(--c-text-weak);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-arrow {
            width: 30px;
            height: 30px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(14, 107, 92, 0.08);
            color: var(--c-primary);
            font-size: .82rem;
            transition: all .3s ease;
        }
        .related-card:hover .card-arrow {
            background: var(--gradient-main);
            color: #fff;
            transform: rotate(0deg);
            box-shadow: 0 4px 12px rgba(14, 107, 92, 0.3);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: linear-gradient(180deg, #0E2A26 0%, #0A1F1C 100%);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer-col {
            margin-bottom: 32px;
        }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand i {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gradient-main);
            border-radius: 10px;
            color: #fff;
            font-size: .95rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: .9rem;
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-title {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 2px;
            background: var(--c-accent);
            border-radius: 2px;
        }
        .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);
            font-size: .875rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .25s ease;
        }
        .footer-links a:hover {
            color: var(--c-accent);
            padding-left: 4px;
        }
        .footer-links a i {
            color: var(--c-accent);
            font-size: .75rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: .8rem;
            color: rgba(255, 255, 255, 0.45);
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #FDFCFA;
                border-radius: 16px;
                padding: 16px 20px;
                margin-top: 12px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--c-border);
            }
            .nav-right {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 0 4px;
                border-top: 1px solid var(--c-border);
                margin-top: 10px;
            }
            .navbar-nav .nav-link {
                padding: 10px 4px !important;
                border-radius: 8px;
            }
        }
        @media (max-width: 767.98px) {
            .article-container {
                padding: 32px 0 48px;
            }
            .article-main {
                padding: 28px 24px;
                border-radius: 16px;
            }
            .article-title {
                font-size: 1.7rem;
            }
            .article-cover img {
                height: 240px;
            }
            .article-lead {
                font-size: .95rem;
                padding: 14px 16px;
            }
            .related-section {
                padding: 48px 0 56px;
            }
        }
        @media (max-width: 575.98px) {
            .article-main {
                padding: 24px 18px;
                border-radius: 14px;
            }
            .article-meta {
                gap: 10px 14px;
                font-size: .8rem;
            }
            .article-tags .tag {
                font-size: .78rem;
                padding: 5px 10px;
            }
            .section-header {
                align-items: flex-start !important;
            }
            .btn-outline-primary {
                width: 100%;
            }
            .related-card .card-cover {
                height: 170px;
            }
        }