/* roulang page: index */
:root {
            --color-primary: #0E7C7B;
            --color-primary-dark: #0A5F5E;
            --color-primary-50: #E6F4F3;
            --color-accent: #F59E0B;
            --color-accent-dark: #D97706;
            --color-footer-bg: #0B1F22;
            --color-text-1: #1E2A2B;
            --color-text-2: #4B5A5C;
            --color-text-3: #8A989A;
            --color-bg-soft: #F6F8F7;
            --color-bg-white: #FFFFFF;
            --color-border: #E4E9E8;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
            --font-size-base: 16px;
            --font-size-sm: 0.875rem;
            --font-size-xs: 0.8125rem;
            --font-size-body-lg: 1.0625rem;
            --line-height-body: 1.8;
            --line-height-heading: 1.3;
            --section-gap: 5rem;
            --section-gap-mobile: 3.5rem;
            --container-max: 1200px;
            --container-pad: 1.25rem;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-pill: 999px;
            --shadow-xs: 0 1px 3px rgba(16, 42, 46, 0.06);
            --shadow-sm: 0 4px 14px rgba(16, 42, 46, 0.08);
            --shadow-hover: 0 12px 28px rgba(16, 42, 46, 0.12);
            --shadow-cta: 0 8px 24px rgba(14, 124, 123, 0.3);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: var(--font-size-base);
            line-height: var(--line-height-body);
            color: var(--color-text-1);
            background: var(--color-bg-white);
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-pad);
            padding-right: var(--container-pad);
        }

        .section {
            padding-top: var(--section-gap);
            padding-bottom: var(--section-gap);
        }

        .section-sm {
            padding-top: calc(var(--section-gap) * 0.6);
            padding-bottom: calc(var(--section-gap) * 0.6);
        }

        .section-title-wrap {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 2.5rem;
        }

        .section-title-wrap .line {
            width: 4px;
            height: 26px;
            border-radius: 2px;
            background: var(--color-primary);
            flex-shrink: 0;
        }

        .section-title-wrap h2 {
            margin: 0;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text-1);
        }

        .section-subtitle {
            color: var(--color-text-2);
            font-size: var(--font-size-sm);
            max-width: 640px;
            margin-top: -1.5rem;
            margin-bottom: 2rem;
            line-height: 1.7;
        }

        /* ===== 按钮 ===== */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            padding: 0.75rem 2rem;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(14, 124, 123, 0.25);
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-main:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(14, 124, 123, 0.35);
            text-decoration: none;
        }

        .btn-main:active {
            transform: translateY(0);
        }

        .btn-main:focus-visible,
        .btn-outline-main:focus-visible {
            outline: 2px solid rgba(14, 124, 123, 0.5);
            outline-offset: 2px;
        }

        .btn-outline-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            border: 1.5px solid currentColor;
            border-radius: var(--radius-pill);
            padding: 0.75rem 2rem;
            font-weight: 600;
            color: inherit;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-main:hover {
            background: rgba(14, 124, 123, 0.08);
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-white {
            background: #fff;
            color: var(--color-primary);
            border: none;
            border-radius: var(--radius-pill);
            padding: 0.75rem 2rem;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .btn-white:hover {
            background: var(--color-primary-50);
            color: var(--color-primary-dark);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-pill);
            padding: 0.75rem 2rem;
            font-weight: 600;
            color: #fff;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 0.5rem 1.5rem;
            font-size: 14px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 72px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
            transition: box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .site-header .navbar {
            height: 72px;
            padding: 0 var(--container-pad);
        }

        .site-header .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-1);
            display: flex;
            align-items: center;
            gap: 4px;
            line-height: 1.2;
        }

        .site-header .navbar-brand .brand-strong {
            color: var(--color-primary);
            font-weight: 800;
        }

        .site-header .navbar-nav {
            gap: 2rem;
        }

        .site-header .nav-link {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--color-text-2);
            padding: 0.5rem 0 !important;
            position: relative;
            transition: color 0.2s ease;
        }

        .site-header .nav-link:hover {
            color: var(--color-primary);
        }

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

        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 3px;
            border-radius: 3px;
            background: var(--color-primary);
        }

        .site-header .nav-cta {
            margin-left: 1.5rem;
        }

        .navbar-toggler {
            border: none;
            box-shadow: none !important;
            padding: 0.375rem 0.5rem;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== 倒计时条 ===== */
        .countdown-bar {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            z-index: 1040;
            background: linear-gradient(90deg, rgba(16, 42, 46, 0.95), rgba(16, 42, 46, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 0.75rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .countdown-bar .inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            gap: 12px;
        }

        .countdown-bar .label-left {
            font-size: 0.875rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .countdown-bar .label-left .divider {
            width: 1px;
            height: 16px;
            background: rgba(255, 255, 255, 0.2);
            margin: 0 4px;
        }

        .countdown-bar .countdown {
            display: flex;
            align-items: center;
            gap: 6px;
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        .countdown-bar .cd-item {
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .countdown-bar .cd-num {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--color-accent);
            line-height: 1;
        }

        .countdown-bar .cd-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.7);
            margin-left: 1px;
        }

        .countdown-bar .cd-sep {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.875rem;
            margin: 0 2px;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: calc(100vh - 130px);
            display: flex;
            align-items: center;
            background: linear-gradient(90deg, rgba(15, 23, 42, 0.86), rgba(15, 23, 42, 0.45)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding-top: 130px;
            padding-bottom: 72px;
            margin-top: 0;
        }

        .hero-section .hero-content {
            max-width: 600px;
        }

        .hero-section h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 1rem;
        }

        .hero-section .hero-sub {
            font-size: 1.125rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-section .hero-cta {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 2.5rem;
        }

        .hero-section .hero-trust {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
        }

        .hero-trust-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-trust-item .trust-num {
            font-size: 1.375rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }

        .hero-trust-item .trust-label {
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.4;
        }

        /* ===== 卖点区 ===== */
        .features-section {
            background: var(--color-bg-white);
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-xs);
            transition: all 0.25s ease;
            height: 100%;
        }

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

        .feature-card .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1.5px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
        }

        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 0.625rem;
            color: var(--color-text-1);
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 0.9375rem;
            color: var(--color-text-2);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 图墙 ===== */
        .gallery-section {
            background: var(--color-bg-soft);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-auto-rows: 200px;
            gap: 1.5rem;
        }

        .gallery-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease;
        }

        .gallery-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .gallery-item img,
        .gallery-item .gallery-bg {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .gallery-item:hover img,
        .gallery-item:hover .gallery-bg {
            transform: scale(1.04);
        }

        .gallery-item .gallery-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent);
            z-index: 1;
        }

        .gallery-item .gallery-caption {
            position: absolute;
            left: 20px;
            bottom: 16px;
            z-index: 2;
            color: #fff;
            font-size: 1.125rem;
            font-weight: 600;
            margin: 0;
            line-height: 1.4;
        }

        .gallery-item-block {
            background: var(--color-primary);
            border-radius: var(--radius-md);
            padding: 1.75rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            color: #fff;
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .gallery-item-block:hover {
            box-shadow: var(--shadow-hover);
        }

        .gallery-item-block .block-num {
            font-size: 2.25rem;
            font-weight: 800;
            opacity: 0.3;
            line-height: 1;
        }

        .gallery-item-block .block-text {
            font-size: 0.9375rem;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.9);
        }

        .gallery-item-block.block-dark {
            background: #102A2E;
        }

        .gallery-item-block.block-light {
            background: var(--color-primary-50);
            color: var(--color-text-1);
        }

        .gallery-item-block.block-light .block-text {
            color: var(--color-text-2);
        }

        .gallery-item-1 {
            grid-column: span 7;
            grid-row: span 2;
        }

        .gallery-item-2 {
            grid-column: span 5;
            grid-row: span 1;
        }

        .gallery-item-3 {
            grid-column: span 5;
            grid-row: span 1;
        }

        .gallery-item-4 {
            grid-column: span 5;
            grid-row: span 2;
        }

        .gallery-item-5 {
            grid-column: span 7;
            grid-row: span 1;
        }

        .gallery-bottom-btn {
            text-align: center;
            margin-top: 2.5rem;
        }

        .gallery-bottom-btn .btn-outline-main {
            color: var(--color-primary);
        }

        /* ===== CTA横幅 ===== */
        .cta-banner {
            position: relative;
            background: var(--color-primary);
            padding: 4.5rem 0;
            color: #fff;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            right: -80px;
            bottom: -80px;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            border-radius: 24px;
            background: rgba(255, 255, 255, 0.05);
            left: 10%;
            top: -40px;
            transform: rotate(30deg);
        }

        .cta-banner .inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2rem;
        }

        .cta-banner .cta-text h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: #fff;
        }

        .cta-banner .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9375rem;
            margin-bottom: 0;
        }

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

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

        .faq-section .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-section .accordion-item {
            border: none;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-xs);
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-section .accordion-button {
            padding: 1rem 1.25rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-1);
            background: #fff;
            border: none;
            box-shadow: none;
            position: relative;
            padding-right: 3rem;
            display: flex;
            align-items: center;
            gap: 12px;
            line-height: 1.5;
            transition: background 0.3s ease;
        }

        .faq-section .accordion-button::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            flex-shrink: 0;
        }

        .faq-section .accordion-button::after {
            display: none;
        }

        .faq-section .accordion-button:not(.collapsed) {
            background: var(--color-primary-50);
            color: var(--color-primary-dark);
            box-shadow: none;
        }

        .faq-section .accordion-button:focus {
            box-shadow: none;
        }

        .faq-section .accordion-button .plus-icon {
            position: absolute;
            right: 1.25rem;
            font-size: 1.25rem;
            font-weight: 300;
            color: var(--color-text-3);
            transition: transform 0.3s ease;
            line-height: 1;
        }

        .faq-section .accordion-button:not(.collapsed) .plus-icon {
            transform: rotate(45deg);
            color: var(--color-primary);
        }

        .faq-section .accordion-body {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.9375rem;
            line-height: 1.9;
            color: var(--color-text-2);
        }

        /* ===== 资讯列表 ===== */
        .news-section {
            background: var(--color-bg-soft);
        }

        .news-section .header-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .news-section .header-row .section-title-wrap {
            margin-bottom: 0;
        }

        .news-section .view-all {
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s ease;
        }

        .news-section .view-all:hover {
            gap: 8px;
            color: var(--color-primary-dark);
        }

        .news-card {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 1.25rem;
            box-shadow: var(--shadow-xs);
            transition: all 0.25s ease;
            margin-bottom: 12px;
            text-decoration: none;
            border: 1px solid transparent;
        }

        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: var(--color-border);
            text-decoration: none;
        }

        .news-card .news-date {
            width: 76px;
            height: 68px;
            border-radius: var(--radius-sm);
            background: var(--color-bg-soft);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all 0.25s ease;
        }

        .news-card:hover .news-date {
            background: var(--color-primary);
        }

        .news-card .news-date .day {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.1;
            color: var(--color-text-1);
            transition: color 0.25s ease;
        }

        .news-card .news-date .month {
            font-size: 0.75rem;
            color: var(--color-text-3);
            line-height: 1.2;
            transition: color 0.25s ease;
        }

        .news-card:hover .news-date .day,
        .news-card:hover .news-date .month {
            color: #fff;
        }

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

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 4px;
        }

        .news-card .news-category {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.6rem;
            font-size: 0.75rem;
            border-radius: var(--radius-pill);
            background: var(--color-primary-50);
            color: var(--color-primary-dark);
            font-weight: 600;
        }

        .news-card .news-time {
            font-size: 0.75rem;
            color: var(--color-text-3);
        }

        .news-card .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-1);
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.5;
        }

        .news-card .news-summary {
            font-size: 0.875rem;
            color: var(--color-text-2);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
            margin-bottom: 0;
        }

        .news-card .news-arrow {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-primary);
            font-size: 1rem;
            transition: all 0.25s ease;
        }

        .news-card:hover .news-arrow {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
            transform: translateX(4px);
        }

        .news-empty {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 3rem 2rem;
            text-align: center;
            box-shadow: var(--shadow-xs);
        }

        .news-empty i {
            font-size: 2.5rem;
            color: var(--color-text-3);
            margin-bottom: 0.75rem;
            display: block;
        }

        .news-empty p {
            color: var(--color-text-3);
            font-size: 0.9375rem;
            margin-bottom: 0;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 2rem;
        }

        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .site-footer .footer-brand .brand-strong {
            color: var(--color-primary);
            font-weight: 800;
        }

        .site-footer .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
            max-width: 360px;
        }

        .site-footer .footer-title {
            font-size: 0.9375rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            transition: color 0.2s ease;
        }

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

        .site-footer .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .site-footer .footer-contact a {
            color: rgba(255, 255, 255, 0.7);
        }

        .site-footer .footer-contact a:hover {
            color: #fff;
        }

        .site-footer .footer-contact i {
            margin-right: 6px;
            color: var(--color-primary);
        }

        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            padding-top: 1.5rem;
            font-size: 0.8125rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .site-footer .footer-bottom .copyright {
            margin: 0;
        }

        .site-footer .footer-bottom .legal-links {
            display: flex;
            gap: 1.5rem;
        }

        .site-footer .footer-bottom .legal-links a {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.8125rem;
        }

        .site-footer .footer-bottom .legal-links a:hover {
            color: #fff;
        }

        /* ===== 移动端底部Tab ===== */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--color-border);
            height: calc(60px + env(safe-area-inset-bottom));
            padding-bottom: env(safe-area-inset-bottom);
        }

        .mobile-tabbar .tabbar-inner {
            display: flex;
            height: 60px;
            align-items: center;
            justify-content: space-around;
        }

        .mobile-tabbar .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 0.6875rem;
            color: var(--color-text-3);
            text-decoration: none;
            min-width: 60px;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: color 0.2s ease;
            line-height: 1.2;
        }

        .mobile-tabbar .tab-item i {
            font-size: 1.25rem;
            line-height: 1;
        }

        .mobile-tabbar .tab-item.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .mobile-tabbar .tab-item:hover {
            color: var(--color-primary);
            text-decoration: none;
        }

        body {
            padding-bottom: 0;
        }

        @media (max-width: 991px) {
            body {
                padding-bottom: calc(60px + env(safe-area-inset-bottom));
            }

            .site-header {
                height: 64px;
            }

            .site-header .navbar {
                height: 64px;
            }

            .countdown-bar {
                top: 64px;
            }

            .hero-section {
                padding-top: 110px;
                min-height: calc(85vh - 64px);
            }

            .hero-section .hero-content {
                text-align: center;
                margin: 0 auto;
            }

            .hero-section .hero-cta {
                justify-content: center;
            }

            .hero-section .hero-trust {
                justify-content: center;
                gap: 2rem;
            }

            .mobile-tabbar {
                display: block;
            }

            .desktop-nav-links {
                display: none;
            }

            .site-header .nav-cta {
                display: none;
            }

            .countdown-bar .label-left .divider {
                display: none;
            }

            .countdown-bar .label-left .sub-text {
                display: none;
            }

            .section {
                padding-top: var(--section-gap-mobile);
                padding-bottom: var(--section-gap-mobile);
            }

            .gallery-grid {
                grid-template-columns: 1fr;
                grid-auto-rows: auto;
                gap: 1rem;
            }

            .gallery-item-1,
            .gallery-item-2,
            .gallery-item-3,
            .gallery-item-4,
            .gallery-item-5 {
                grid-column: span 1;
                grid-row: span 1;
            }

            .gallery-item-1 {
                height: 180px;
            }

            .gallery-item-4 {
                height: 180px;
            }

            .gallery-item-2,
            .gallery-item-3,
            .gallery-item-5 {
                min-height: 140px;
            }

            .footer-top {
                grid-template-columns: 1fr !important;
                gap: 2rem;
            }

            /* 移动端容器 */
            .container-custom {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .cta-banner .inner {
                flex-direction: column;
                text-align: center;
            }

            .cta-banner .cta-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-banner .cta-actions .btn-white,
            .cta-banner .cta-actions .btn-outline-white {
                width: 100%;
            }

            .news-card {
                padding: 1rem;
                gap: 0.875rem;
            }

            .news-card .news-date {
                width: 60px;
                height: 58px;
            }

            .news-card .news-date .day {
                font-size: 1.375rem;
            }

            .news-arrow {
                display: none !important;
            }
        }

        @media (max-width: 576px) {
            .countdown-bar .label-left {
                font-size: 0.8125rem;
            }

            .countdown-bar .countdown {
                gap: 4px;
            }

            .countdown-bar .cd-num {
                font-size: 1rem;
            }

            .countdown-bar .cd-label {
                font-size: 0.65625rem;
            }

            .countdown-bar .cd-sep {
                margin: 0 1px;
            }

            .hero-section .hero-cta .btn-main,
            .hero-section .hero-cta .btn-outline-main {
                width: 100%;
            }

            .hero-trust-item .trust-num {
                font-size: 1.125rem;
            }

            .hero-trust-item .trust-label {
                font-size: 0.75rem;
            }

            .feature-card {
                padding: 1.5rem 1.25rem;
            }

            .news-card .news-summary {
                -webkit-line-clamp: 1;
            }

            .news-meta {
                flex-wrap: wrap;
                gap: 6px;
            }

            .btn-main,
            .btn-outline-main,
            .btn-white,
            .btn-outline-white {
                padding: 0.6875rem 1.75rem;
            }
        }

        @media (min-width: 1200px) {
            .container-custom {
                padding-left: 0;
                padding-right: 0;
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #0E7C7B;
  --color-primary-dark: #0A5F5E;
  --color-primary-50: #E6F4F3;
  --color-accent: #F59E0B;
  --color-accent-dark: #D97706;
  --color-footer-bg: #0B1F22;
  --color-text-1: #1E2A2B;
  --color-text-2: #4B5A5C;
  --color-text-3: #8A989A;
  --color-bg-soft: #F6F8F7;
  --color-bg-white: #FFFFFF;
  --color-border: #E4E9E8;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 0.875rem;
  --font-size-xs: 0.8125rem;
  --line-height-body: 1.8;
  --line-height-heading: 1.3;
  --section-gap: 5rem;
  --section-gap-mobile: 3.5rem;
  --container-max: 1200px;
  --container-pad: 1.25rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --shadow-xs: 0 1px 3px rgba(16, 42, 46, 0.06);
  --shadow-sm: 0 4px 14px rgba(16, 42, 46, 0.08);
  --shadow-hover: 0 12px 28px rgba(16, 42, 46, 0.12);
  --shadow-cta: 0 8px 24px rgba(14, 124, 123, 0.3);
}
* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); font-size: var(--font-size-base); line-height: var(--line-height-body); color: var(--color-text-1); background: var(--color-bg-white); -webkit-font-smoothing: antialiased; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-primary-dark); text-decoration: underline; text-underline-offset: 4px; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container-custom { width: 100%; max-width: var(--container-max); margin: 0 auto; padding-left: var(--container-pad); padding-right: var(--container-pad); }
.section { padding: var(--section-gap) 0; }
.section-sm { padding: calc(var(--section-gap) * 0.65) 0; }
.text-main-title { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 700; line-height: var(--line-height-heading); color: var(--color-text-1); }
.text-sub-title { font-size: 1.125rem; font-weight: 600; line-height: 1.4; color: var(--color-text-1); }
.text-body { font-size: 1rem; color: var(--color-text-2); }
.text-helper { font-size: var(--font-size-sm); color: var(--color-text-3); }
.text-small { font-size: var(--font-size-xs); color: var(--color-text-3); }
.section-head { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 2.5rem; }
.section-head .bar { width: 4px; height: 26px; background: var(--color-primary); border-radius: 2px; flex-shrink: 0; }
.section-head h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 700; line-height: 1.3; margin: 0; color: var(--color-text-1); }

.btn-main { display: inline-flex; align-items: center; justify-content: center; background: var(--color-primary); color: #fff; border: none; border-radius: var(--radius-pill); padding: 0.75rem 2rem; font-weight: 600; font-size: 1rem; line-height: 1.5; cursor: pointer; box-shadow: 0 4px 14px rgba(14, 124, 123, 0.25); transition: all 0.25s ease; }
.btn-main:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(14, 124, 123, 0.35); text-decoration: none; }
.btn-main:active { transform: translateY(0); }
.btn-main:focus-visible { outline: 2px solid #37A8A7; outline-offset: 2px; }
.btn-outline { display: inline-flex; align-items: center; justify-content: center; background: transparent; border: 1.5px solid currentColor; border-radius: var(--radius-pill); padding: 0.75rem 2rem; font-weight: 600; font-size: 1rem; line-height: 1.5; cursor: pointer; color: inherit; transition: all 0.25s ease; }
.btn-outline:hover { background: rgba(14, 124, 123, 0.1); color: var(--color-primary); text-decoration: none; }
.btn-white { background: #fff; color: var(--color-primary); border: none; border-radius: var(--radius-pill); padding: 0.75rem 2rem; font-weight: 600; font-size: 1rem; line-height: 1.5; cursor: pointer; box-shadow: 0 4px 14px rgba(255, 255, 255, 0.25); transition: all 0.25s ease; }
.btn-white:hover { background: var(--color-primary-50); color: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(255, 255, 255, 0.35); }
.btn-sm { padding: 0.5rem 1.5rem; font-size: 0.875rem; }
.btn-lg { padding: 0.875rem 2.5rem; font-size: 1.0625rem; }
.badge-tag { display: inline-flex; align-items: center; padding: 0.25rem 0.75rem; font-size: 0.75rem; border-radius: var(--radius-pill); background: var(--color-primary-50); color: var(--color-primary-dark); font-weight: 600; }
.badge-hot { background: rgba(245, 158, 11, 0.15); color: var(--color-accent-dark); }

.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1050; background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-border); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.site-header .navbar { min-height: 72px; padding: 0; }
.navbar-brand { font-size: 1.25rem; font-weight: 400; color: var(--color-text-1); display: flex; align-items: center; letter-spacing: 0.5px; }
.navbar-brand:hover { color: var(--color-text-1); }
.brand-strong { font-weight: 700; color: var(--color-primary); }
.navbar-nav { gap: 2rem; }
.navbar-nav .nav-link { font-size: 1rem; font-weight: 500; color: var(--color-text-2); padding: 0.5rem 0; position: relative; white-space: nowrap; }
.navbar-nav .nav-link:hover { color: var(--color-primary); }
.navbar-nav .nav-link.active { color: var(--color-primary); font-weight: 600; }
.navbar-nav .nav-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 3px; background: var(--color-primary); border-radius: 2px; }
.navbar-toggler { border: none; box-shadow: none !important; padding: 0.25rem; }
.desktop-nav-links { margin-left: 2.5rem; }
.nav-cta { margin-left: 2.5rem; }

.mobile-nav-collapse { background: #fff; border-top: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }
.mobile-nav-collapse .navbar-nav { padding: 1rem 0; gap: 0; }
.mobile-nav-collapse .nav-item { width: 100%; }
.mobile-nav-collapse .nav-link { padding: 0.75rem 1.25rem; border-radius: var(--radius-md); }
.mobile-nav-collapse .nav-link.active { background: var(--color-primary-50); }

.bottom-tab-nav { position: fixed; bottom: 0; left: 0; right: 0; z-index: 1040; height: calc(60px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); background: rgba(255, 255, 255, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-top: 1px solid var(--color-border); display: flex; align-items: center; }
.bottom-tab-nav .tab-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: var(--color-text-3); font-size: 11px; font-weight: 500; transition: color 0.2s ease; }
.bottom-tab-nav .tab-item i { font-size: 20px; line-height: 1; }
.bottom-tab-nav .tab-item.active { color: var(--color-primary); }
.bottom-tab-nav .tab-item.active i { color: var(--color-primary); }
body { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }
@media (min-width: 992px) { body { padding-bottom: 0; } .bottom-tab-nav { display: none; } }

.page-banner { position: relative; min-height: 280px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, rgba(14, 124, 123, 0.82) 0%, rgba(10, 95, 94, 0.62) 60%), url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 120px 0 60px; text-align: center; }
.page-banner h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 700; color: #fff; margin: 0 0 0.5rem; text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25); }
.page-banner .banner-sub { color: rgba(255, 255, 255, 0.9); font-size: 1rem; max-width: 720px; margin: 0 auto; }
.breadcrumb-bar { padding: 1rem 0; background: var(--color-bg-soft); border-bottom: 1px solid var(--color-border); font-size: var(--font-size-sm); color: var(--color-text-3); }
.breadcrumb-bar a { color: var(--color-text-3); }
.breadcrumb-bar a:hover { color: var(--color-primary); }
.breadcrumb-bar .sep { margin: 0 0.5rem; color: var(--color-text-3); }
.breadcrumb-bar .current { color: var(--color-text-1); font-weight: 500; }

.category-intro { padding: 3rem 0; background: var(--color-bg-white); }
.category-intro .intro-text { max-width: 820px; margin: 0 auto; text-align: center; color: var(--color-text-2); font-size: 1rem; line-height: 2; }

.feature-grid { padding: var(--section-gap) 0; background: var(--color-bg-soft); }
.feature-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 2rem 1.75rem; box-shadow: var(--shadow-xs); transition: all 0.3s ease; height: 100%; }
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card:nth-child(2), .feature-card:nth-child(4) { margin-top: 1.5rem; }
.feature-card .icon-wrap { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: var(--color-primary-50); border-radius: var(--radius-md); margin-bottom: 1.25rem; }
.feature-card .icon-wrap i { font-size: 26px; color: var(--color-primary); }
.feature-card h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.5rem; color: var(--color-text-1); }
.feature-card p { font-size: 0.9375rem; color: var(--color-text-2); line-height: 1.7; margin: 0; }
@media (max-width: 991.98px) { .feature-card:nth-child(2), .feature-card:nth-child(4) { margin-top: 0; } }

.activity-flow { padding: var(--section-gap) 0; }
.flow-step { text-align: center; padding: 1.5rem 1rem; position: relative; }
.flow-step .step-num { width: 48px; height: 48px; border-radius: 50%; background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.25rem; font-weight: 700; margin: 0 auto 1rem; box-shadow: 0 4px 12px rgba(14, 124, 123, 0.25); }
.flow-step .step-title { font-size: 1rem; font-weight: 600; color: var(--color-text-1); margin-bottom: 0.5rem; }
.flow-step .step-desc { font-size: 0.875rem; color: var(--color-text-2); line-height: 1.6; max-width: 220px; margin: 0 auto; }
.flow-step .step-line { position: absolute; top: 40px; right: -20px; width: 40px; height: 2px; background: var(--color-border); }
@media (max-width: 767.98px) { .flow-step .step-line { display: none; } }

.scene-block { padding: var(--section-gap) 0; background: var(--color-bg-soft); }
.scene-block .scene-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); height: 100%; min-height: 280px; }
.scene-block .scene-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.scene-block .scene-img:hover img { transform: scale(1.04); }
.scene-block .scene-content h2 { font-size: 1.375rem; font-weight: 700; color: var(--color-text-1); margin-bottom: 1rem; position: relative; padding-left: 14px; }
.scene-block .scene-content h2::before { content: ''; position: absolute; left: 0; top: 2px; bottom: 2px; width: 4px; background: var(--color-primary); border-radius: 2px; }
.scene-block .scene-content p { font-size: 0.9375rem; color: var(--color-text-2); line-height: 1.9; margin-bottom: 1rem; }
.scene-block .scene-content ul { list-style: none; padding: 0; margin: 1rem 0 0; }
.scene-block .scene-content ul li { position: relative; padding-left: 20px; font-size: 0.9375rem; color: var(--color-text-2); margin-bottom: 0.6rem; }
.scene-block .scene-content ul li::before { content: ''; position: absolute; left: 0; top: 0.55em; width: 8px; height: 8px; background: var(--color-primary); border-radius: 50%; }
.row-flex { display: flex; align-items: center; }

.hot-list { padding: calc(var(--section-gap) * 0.8) 0; }
.hot-list .hot-card { display: flex; align-items: center; gap: 1.5rem; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.25rem 1.5rem; margin-bottom: 0.75rem; box-shadow: var(--shadow-xs); transition: all 0.25s ease; }
.hot-list .hot-card:hover { box-shadow: var(--shadow-hover); transform: translateX(4px); }
.hot-list .hot-rank { font-size: 1.5rem; font-weight: 700; color: var(--color-text-3); min-width: 40px; font-style: italic; }
.hot-list .hot-card:nth-child(1) .hot-rank, .hot-list .hot-card:nth-child(2) .hot-rank, .hot-list .hot-card:nth-child(3) .hot-rank { color: var(--color-accent); }
.hot-list .hot-body { flex: 1; }
.hot-list .hot-body .hot-title { font-size: 1rem; font-weight: 600; color: var(--color-text-1); margin-bottom: 0.25rem; }
.hot-list .hot-body .hot-meta { font-size: var(--font-size-xs); color: var(--color-text-3); }
.hot-list .hot-link { color: var(--color-primary); font-weight: 500; font-size: 0.9375rem; white-space: nowrap; }
.hot-list .hot-link i { transition: transform 0.2s ease; }
.hot-list .hot-link:hover i { transform: translateX(3px); }
@media (max-width: 575.98px) { .hot-list .hot-card { flex-wrap: wrap; gap: 0.75rem; padding: 1rem; } .hot-list .hot-card .hot-left { width: 100%; display: flex; justify-content: space-between; align-items: center; } .hot-list .hot-body { width: 100%; } .hot-list .hot-link { display: none; } }

.faq-section { padding: var(--section-gap) 0; background: var(--color-bg-soft); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.accordion { display: flex; flex-direction: column; gap: 12px; }
.accordion-item { border: none; border-radius: var(--radius-md) !important; background: #fff; box-shadow: var(--shadow-xs); overflow: hidden; }
.accordion-item:first-of-type .accordion-button, .accordion-item:last-of-type .accordion-button { border-radius: var(--radius-md); }
.accordion-button { position: relative; background: #fff; border: none; box-shadow: none; padding: 1rem 1.25rem; color: var(--color-text-1); font-size: 1rem; font-weight: 600; transition: background 0.25s ease; display: flex; align-items: center; gap: 12px; }
.accordion-button::before { content: ''; width: 8px; height: 8px; background: var(--color-primary); border-radius: 50%; flex-shrink: 0; }
.accordion-button::after { content: '+'; background: none; width: auto; height: auto; font-size: 1.375rem; line-height: 1; font-weight: 400; color: var(--color-text-3); font-family: inherit; transition: transform 0.25s ease, color 0.25s ease; position: absolute; right: 1.25rem; }
.accordion-button:not(.collapsed) { background: var(--color-primary-50); color: var(--color-primary); }
.accordion-button:not(.collapsed)::after { transform: rotate(45deg); color: var(--color-primary); }
.accordion-button:focus { box-shadow: none; }
.accordion-body { background: #fff; padding: 0 1.25rem 1.25rem 3rem; font-size: 0.9375rem; color: var(--color-text-2); line-height: 1.9; }
.accordion-item:has(.accordion-button:not(.collapsed)) { box-shadow: var(--shadow-sm); border-color: transparent; }

.cta-section { position: relative; padding: 4rem 0; background: var(--color-primary); overflow: hidden; }
.cta-section::before { content: ''; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; background: rgba(255, 255, 255, 0.1); border-radius: 50%; }
.cta-section::after { content: ''; position: absolute; left: -40px; bottom: -100px; width: 200px; height: 200px; background: rgba(255, 255, 255, 0.06); border-radius: 50%; }
.cta-section .cta-body { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem; }
.cta-section .cta-left h2 { font-size: clamp(1.375rem, 2.5vw, 1.875rem); font-weight: 700; color: #fff; margin: 0 0 0.25rem; }
.cta-section .cta-left p { color: rgba(255, 255, 255, 0.85); font-size: 0.9375rem; margin: 0; }
.cta-section .cta-right { display: flex; gap: 0.75rem; flex-wrap: wrap; }
@media (max-width: 767.98px) { .cta-section .cta-body { flex-direction: column; text-align: center; } .cta-section .cta-right { width: 100%; } .cta-section .cta-right .btn-main, .cta-section .cta-right .btn-outline { width: 100%; } }

.site-footer { background: var(--color-footer-bg); color: rgba(255, 255, 255, 0.7); padding: 3.5rem 0 0; }
.site-footer .footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; }
.site-footer .footer-brand { font-size: 1.25rem; color: #fff; margin-bottom: 0.75rem; }
.site-footer .footer-brand .brand-strong { color: #5BB8B5; }
.site-footer .footer-desc { font-size: 0.9375rem; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 340px; margin-bottom: 0; }
.site-footer .footer-title { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 1rem; }
.site-footer .footer-links { list-style: none; padding: 0; margin: 0; }
.site-footer .footer-links li { margin-bottom: 0.5rem; }
.site-footer .footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 0.9375rem; transition: color 0.2s ease; }
.site-footer .footer-links a:hover { color: #fff; text-decoration: none; }
.site-footer .footer-contact { display: flex; flex-direction: column; gap: 0.6rem; }
.site-footer .footer-contact span { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9375rem; color: rgba(255, 255, 255, 0.6); }
.site-footer .footer-contact i { color: #5BB8B5; font-size: 1rem; }
.site-footer .footer-contact a { color: rgba(255, 255, 255, 0.6); }
.site-footer .footer-contact a:hover { color: #fff; }
.site-footer .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 1.25rem 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.75rem; }
.site-footer .footer-bottom .copyright { font-size: var(--font-size-xs); color: rgba(255, 255, 255, 0.5); margin: 0; }
.site-footer .legal-links { display: flex; gap: 1.5rem; }
.site-footer .legal-links a { color: rgba(255, 255, 255, 0.5); font-size: var(--font-size-xs); }
.site-footer .legal-links a:hover { color: #fff; text-decoration: none; }
@media (max-width: 767.98px) { .site-footer .footer-top { grid-template-columns: 1fr; gap: 1.5rem; } .site-footer .footer-bottom { flex-direction: column; align-items: center; text-align: center; } }

@media (max-width: 991.98px) { :root { --section-gap: 3.5rem; } .page-banner { min-height: 220px; padding: 100px 0 50px; } .scene-block .row-flex { flex-direction: column; } .scene-block .scene-img { margin-bottom: 1.5rem; min-height: 200px; } }
@media (max-width: 767.98px) { .page-banner { min-height: 200px; padding: 90px 0 40px; } .page-banner h1 { font-size: 1.625rem; } }

/* roulang page: article */
:root {
        --color-primary: #0E7C7B;
        --color-primary-dark: #0A5F5E;
        --color-primary-50: #E6F4F3;
        --color-accent: #F59E0B;
        --color-accent-dark: #D97706;
        --color-footer-bg: #0B1F22;
        --color-text-1: #1E2A2B;
        --color-text-2: #4B5A5C;
        --color-text-3: #8A989A;
        --color-bg-soft: #F6F8F7;
        --color-bg-white: #FFFFFF;
        --color-border: #E4E9E8;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
        --font-size-base: 16px;
        --font-size-sm: 0.875rem;
        --font-size-xs: 0.8125rem;
        --font-size-body-lg: 1.0625rem;
        --line-height-body: 1.8;
        --line-height-heading: 1.3;
        --container-max: 1200px;
        --container-pad: 1.25rem;
        --radius-sm: 6px;
        --radius-md: 12px;
        --radius-lg: 18px;
        --radius-pill: 999px;
        --shadow-xs: 0 1px 3px rgba(16, 42, 46, 0.06);
        --shadow-sm: 0 4px 14px rgba(16, 42, 46, 0.08);
        --shadow-hover: 0 12px 28px rgba(16, 42, 46, 0.12);
        --shadow-cta: 0 8px 24px rgba(14, 124, 123, 0.3);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        font-size: var(--font-size-base);
        line-height: var(--line-height-body);
        color: var(--color-text-1);
        background: var(--color-bg-white);
        padding-top: 72px;
        padding-bottom: calc(60px + env(safe-area-inset-bottom));
        -webkit-font-smoothing: antialiased;
    }

    @media (min-width: 992px) {
        body {
            padding-bottom: 0;
        }
    }

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

    a:hover {
        color: var(--color-primary-dark);
    }

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

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

    .container-custom {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: var(--container-pad);
        padding-right: var(--container-pad);
        width: 100%;
    }

    .btn-main {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--color-primary);
        color: #fff;
        border: none;
        border-radius: var(--radius-pill);
        padding: 0.75rem 2rem;
        font-weight: 600;
        font-size: 0.9375rem;
        line-height: 1.4;
        cursor: pointer;
        transition: all 0.25s ease;
        box-shadow: 0 4px 14px rgba(14, 124, 123, 0.25);
    }

    .btn-main:hover {
        background: var(--color-primary-dark);
        color: #fff;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(14, 124, 123, 0.35);
    }

    .btn-main:active {
        transform: translateY(0);
    }

    .btn-main:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
    }

    .btn-main.btn-sm {
        padding: 0.5rem 1.5rem;
        font-size: 0.875rem;
    }

    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: 1.5px solid currentColor;
        border-radius: var(--radius-pill);
        padding: 0.75rem 2rem;
        font-weight: 600;
        font-size: 0.9375rem;
        color: inherit;
        cursor: pointer;
        transition: all 0.25s ease;
    }

    .btn-outline:hover {
        background: var(--color-primary-50);
        color: var(--color-primary-dark);
        transform: translateY(-2px);
    }

    .btn-outline:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
    }

    .section-title {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        font-size: clamp(1.5rem, 2.5vw, 2rem);
        font-weight: 700;
        color: var(--color-text-1);
        line-height: 1.3;
        margin-bottom: 2.5rem;
    }

    .section-title::before {
        content: '';
        width: 4px;
        height: 26px;
        border-radius: 2px;
        background: var(--color-primary);
        flex-shrink: 0;
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        border-bottom: 1px solid var(--color-border);
        transition: box-shadow 0.3s ease;
    }

    .site-header.scrolled {
        box-shadow: var(--shadow-sm);
    }

    .site-header .navbar {
        min-height: 72px;
        padding: 0;
    }

    .navbar-brand {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--color-text-1);
        display: flex;
        align-items: center;
        line-height: 1.2;
        letter-spacing: 0.01em;
        padding: 0;
    }

    .navbar-brand .brand-strong {
        color: var(--color-primary);
        font-weight: 800;
        margin-right: 2px;
    }

    .desktop-nav-links .navbar-nav {
        gap: 2rem;
        margin-left: 3rem;
    }

    .desktop-nav-links .nav-link {
        font-size: 0.9375rem;
        color: var(--color-text-1);
        font-weight: 500;
        padding: 0.5rem 0;
        position: relative;
        white-space: nowrap;
    }

    .desktop-nav-links .nav-link::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 6px;
        height: 3px;
        border-radius: 2px;
        background: var(--color-primary);
        opacity: 0;
        transition: opacity 0.2s ease;
    }

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

    .desktop-nav-links .nav-link.active::after {
        opacity: 1;
    }

    .desktop-nav-links .nav-link:hover {
        color: var(--color-primary);
    }

    .navbar-toggler {
        border: none;
        background: transparent;
        padding: 0.25rem;
        box-shadow: none;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .navbar-toggler:focus {
        box-shadow: none;
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
        border-radius: var(--radius-sm);
    }

    .navbar-toggler i {
        color: var(--color-text-1);
        font-size: 1.75rem;
        line-height: 1;
    }

    #mobileNav {
        border-top: 1px solid var(--color-border);
        background: var(--color-bg-white);
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        box-shadow: var(--shadow-sm);
        margin-top: 0.5rem;
    }

    #mobileNav .nav-link {
        font-size: 0.9375rem;
        color: var(--color-text-1);
        font-weight: 500;
        padding: 0.75rem 1rem;
        border-radius: var(--radius-sm);
    }

    #mobileNav .nav-link.active {
        color: var(--color-primary);
        background: var(--color-primary-50);
        font-weight: 600;
    }

    .bottom-tab-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1050;
        height: 60px;
        background: rgba(255, 255, 255, 0.92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-top: 1px solid var(--color-border);
        display: flex;
        align-items: stretch;
        padding: 0;
    }

    .bottom-tab-nav .tab-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        color: var(--color-text-3);
        text-decoration: none;
        gap: 3px;
        transition: color 0.2s ease;
        padding: 4px 0;
        border-radius: 0;
    }

    .bottom-tab-nav .tab-item i {
        font-size: 1.35rem;
        line-height: 1;
    }

    .bottom-tab-nav .tab-item span {
        font-size: 0.75rem;
        font-weight: 500;
        line-height: 1;
    }

    .bottom-tab-nav .tab-item.active {
        color: var(--color-primary);
    }

    .bottom-tab-nav .tab-item.active i {
        transform: scale(1.05);
    }

    .bottom-tab-nav .tab-item:hover {
        color: var(--color-primary);
    }

    .breadcrumb-nav {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.375rem;
        font-size: 0.875rem;
        color: var(--color-text-3);
        padding: 1.5rem 0 0;
        margin-bottom: 1.25rem;
    }

    .breadcrumb-nav a {
        color: var(--color-text-3);
        transition: color 0.2s ease;
    }

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

    .breadcrumb-nav .divider {
        color: var(--color-text-3);
        opacity: 0.6;
    }

    .breadcrumb-nav .current {
        color: var(--color-text-1);
        font-weight: 500;
        max-width: 260px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .article-page {
        padding: 0 0 4rem;
        background: var(--color-bg-white);
    }

    .article-detail {
        max-width: 860px;
        margin: 0 auto;
    }

    .article-header {
        margin-bottom: 2.5rem;
        padding-bottom: 1.5rem;
        border-bottom: 1px solid var(--color-border);
    }

    .article-label {
        display: inline-flex;
        align-items: center;
        gap: 0.375rem;
        background: var(--color-primary-50);
        color: var(--color-primary-dark);
        font-size: 0.8125rem;
        font-weight: 600;
        padding: 0.3rem 0.875rem;
        border-radius: var(--radius-pill);
        margin-bottom: 1rem;
    }

    .article-label::before {
        content: '';
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--color-accent);
    }

    .article-header h1 {
        font-size: clamp(1.75rem, 3.5vw, 2.5rem);
        font-weight: 700;
        line-height: 1.3;
        color: var(--color-text-1);
        margin-bottom: 1rem;
        letter-spacing: 0.01em;
    }

    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 1.25rem;
        font-size: 0.875rem;
        color: var(--color-text-3);
    }

    .article-meta span {
        display: inline-flex;
        align-items: center;
        gap: 0.375rem;
    }

    .article-meta i {
        color: var(--color-primary);
        font-size: 0.9375rem;
    }

    .article-body {
        font-size: var(--font-size-body-lg);
        line-height: 2;
        color: #2d2d2d;
    }

    .article-body h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 2.5rem 0 1rem;
        padding-left: 0.875rem;
        border-left: 4px solid var(--color-primary);
        border-radius: 2px;
        color: var(--color-text-1);
        line-height: 1.4;
    }

    .article-body h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin: 2rem 0 0.875rem;
        color: var(--color-text-1);
        line-height: 1.4;
    }

    .article-body p {
        margin-bottom: 1.25rem;
    }

    .article-body img {
        max-width: 100%;
        height: auto;
        border-radius: var(--radius-md);
        margin: 1.5rem 0;
        box-shadow: var(--shadow-xs);
    }

    .article-body blockquote {
        border-left: 4px solid var(--color-primary);
        background: var(--color-bg-soft);
        padding: 1rem 1.5rem;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        margin: 1.5rem 0;
        color: var(--color-text-2);
        font-style: normal;
    }

    .article-body blockquote p {
        margin-bottom: 0;
    }

    .article-body ul,
    .article-body ol {
        padding-left: 1.5rem;
        margin-bottom: 1.25rem;
    }

    .article-body ul li,
    .article-body ol li {
        margin-bottom: 0.5rem;
    }

    .article-body ul li::marker {
        color: var(--color-primary);
    }

    .article-body ol li::marker {
        color: var(--color-primary);
        font-weight: 600;
    }

    .article-body a {
        color: var(--color-primary);
        text-decoration: underline;
        text-underline-offset: 4px;
        text-decoration-thickness: 1px;
    }

    .article-body a:hover {
        color: var(--color-primary-dark);
    }

    .article-body table {
        width: 100%;
        border-collapse: collapse;
        margin: 1.5rem 0;
        font-size: 0.9375rem;
    }

    .article-body table th,
    .article-body table td {
        border: 1px solid var(--color-border);
        padding: 0.75rem 1rem;
        text-align: left;
        line-height: 1.6;
    }

    .article-body table th {
        background: var(--color-bg-soft);
        font-weight: 600;
        color: var(--color-text-1);
    }

    .article-body code,
    .article-body kbd {
        background: var(--color-bg-soft);
        border-radius: var(--radius-sm);
        padding: 0.15rem 0.375rem;
        font-size: 0.875rem;
        border: 1px solid var(--color-border);
    }

    .article-body hr {
        border: none;
        border-top: 1px solid var(--color-border);
        margin: 2rem 0;
    }

    .article-tags {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin: 2.5rem 0 0;
        padding: 1.25rem 0;
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
    }

    .article-tags .tag-label {
        font-size: 0.875rem;
        color: var(--color-text-3);
        font-weight: 500;
        margin-right: 0.25rem;
    }

    .article-tags .tag-item {
        display: inline-flex;
        align-items: center;
        padding: 0.3rem 0.875rem;
        font-size: 0.8125rem;
        border-radius: var(--radius-pill);
        background: var(--color-bg-soft);
        color: var(--color-text-2);
        font-weight: 500;
        transition: all 0.2s ease;
    }

    .article-tags .tag-item:hover {
        background: var(--color-primary-50);
        color: var(--color-primary-dark);
        transform: translateY(-1px);
    }

    .related-section {
        margin-top: 3rem;
        padding-top: 2.5rem;
        border-top: 1px solid var(--color-border);
    }

    .related-title {
        font-size: 1.375rem;
        font-weight: 700;
        color: var(--color-text-1);
        margin-bottom: 1.5rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .related-title::before {
        content: '';
        width: 4px;
        height: 22px;
        border-radius: 2px;
        background: var(--color-primary);
    }

    .related-card {
        display: block;
        background: var(--color-bg-white);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-xs);
        transition: all 0.3s ease;
        height: 100%;
        text-decoration: none;
        color: var(--color-text-1);
    }

    .related-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        color: var(--color-text-1);
        border-color: transparent;
    }

    .related-card .related-cover {
        overflow: hidden;
        aspect-ratio: 16 / 9;
        background: var(--color-bg-soft);
    }

    .related-card .related-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .related-card:hover .related-cover img {
        transform: scale(1.04);
    }

    .related-card .related-body {
        padding: 1rem 1.125rem 1.125rem;
    }

    .related-card .related-body h3 {
        font-size: 0.9375rem;
        font-weight: 600;
        line-height: 1.5;
        color: var(--color-text-1);
        margin-bottom: 0.5rem;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        min-height: 2.8125rem;
    }

    .related-card .related-date {
        font-size: 0.8125rem;
        color: var(--color-text-3);
        display: inline-flex;
        align-items: center;
        gap: 0.3125rem;
    }

    .related-card .related-date i {
        font-size: 0.875rem;
    }

    .article-back {
        text-align: center;
        margin-top: 2.5rem;
    }

    .article-back a {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--color-text-2);
        transition: all 0.2s ease;
        padding: 0.5rem 1.25rem;
        border-radius: var(--radius-pill);
        background: var(--color-bg-soft);
    }

    .article-back a:hover {
        color: var(--color-primary);
        background: var(--color-primary-50);
        gap: 0.75rem;
    }

    .not-found {
        text-align: center;
        padding: 4rem 1.5rem;
        max-width: 560px;
        margin: 0 auto;
    }

    .not-found .not-found-icon {
        width: 72px;
        height: 72px;
        margin: 0 auto 1.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--color-primary-50);
        border-radius: 50%;
    }

    .not-found .not-found-icon i {
        font-size: 2rem;
        color: var(--color-primary);
    }

    .not-found h1 {
        font-size: 1.75rem;
        font-weight: 700;
        color: var(--color-text-1);
        margin-bottom: 0.75rem;
    }

    .not-found p {
        font-size: 0.9375rem;
        color: var(--color-text-2);
        margin-bottom: 1.5rem;
    }

    .site-footer {
        background: var(--color-footer-bg);
        color: rgba(255, 255, 255, 0.8);
        padding: 4rem 0 1.5rem;
        margin-top: 2rem;
    }

    .site-footer .container-custom {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: var(--container-pad);
        padding-right: var(--container-pad);
    }

    .footer-top {
        display: grid;
        grid-template-columns: 2fr 1fr 1.5fr;
        gap: 3rem;
        padding-bottom: 2.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .footer-brand {
        font-size: 1.25rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 0.875rem;
        display: flex;
        align-items: center;
    }

    .footer-brand .brand-strong {
        color: #5EBEBD;
        font-weight: 800;
        margin-right: 2px;
    }

    .footer-desc {
        font-size: 0.875rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.65);
        max-width: 36ch;
        margin-bottom: 0;
    }

    .footer-title {
        font-size: 0.9375rem;
        font-weight: 600;
        color: #fff;
        margin-bottom: 1rem;
        letter-spacing: 0.02em;
        position: relative;
        padding-left: 0.75rem;
    }

    .footer-title::before {
        content: '';
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
        width: 3px;
        height: 14px;
        border-radius: 2px;
        background: var(--color-primary);
    }

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

    .footer-links li {
        margin-bottom: 0.625rem;
    }

    .footer-links a {
        color: rgba(255, 255, 255, 0.65);
        font-size: 0.875rem;
        transition: color 0.2s ease, padding-left 0.2s ease;
    }

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

    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
        font-size: 0.875rem;
    }

    .footer-contact span {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        color: rgba(255, 255, 255, 0.65);
    }

    .footer-contact span i {
        color: #5EBEBD;
        font-size: 1rem;
    }

    .footer-contact a {
        color: rgba(255, 255, 255, 0.65);
        transition: color 0.2s ease;
    }

    .footer-contact a:hover {
        color: #fff;
    }

    .footer-bottom {
        padding-top: 1.5rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .footer-bottom .copyright {
        font-size: 0.8125rem;
        color: rgba(255, 255, 255, 0.45);
        margin: 0;
    }

    .footer-bottom .legal-links {
        display: flex;
        gap: 1.5rem;
    }

    .footer-bottom .legal-links a {
        font-size: 0.8125rem;
        color: rgba(255, 255, 255, 0.45);
        transition: color 0.2s ease;
    }

    .footer-bottom .legal-links a:hover {
        color: #fff;
    }

    @media (max-width: 991.98px) {
        body {
            padding-top: 64px;
        }

        .site-header .navbar {
            min-height: 64px;
        }

        .navbar-brand {
            font-size: 1.125rem;
        }

        .breadcrumb-nav {
            padding-top: 1.125rem;
            margin-bottom: 1rem;
        }

        .article-page {
            padding: 0 0 2rem;
        }

        .article-detail {
            max-width: 100%;
        }

        .article-header {
            margin-bottom: 1.75rem;
            padding-bottom: 1.25rem;
        }

        .article-header h1 {
            font-size: 1.5rem;
        }

        .article-meta {
            gap: 0.875rem;
            font-size: 0.8125rem;
        }

        .article-body {
            font-size: 1rem;
            line-height: 1.9;
        }

        .article-body h2 {
            font-size: 1.3125rem;
            margin-top: 2rem;
        }

        .article-body h3 {
            font-size: 1.125rem;
        }

        .article-body blockquote {
            padding: 0.875rem 1.125rem;
        }

        .related-section {
            margin-top: 2rem;
            padding-top: 1.75rem;
        }

        .related-title {
            font-size: 1.25rem;
            margin-bottom: 1.25rem;
        }

        .related-card .related-body h3 {
            font-size: 0.875rem;
            min-height: 2.625rem;
        }

        .site-footer {
            padding: 3rem 0 1.25rem;
        }

        .footer-top {
            grid-template-columns: 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
        }

        .footer-desc {
            max-width: 100%;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 0.75rem;
        }
    }

    @media (max-width: 575.98px) {
        .container-custom {
            padding-left: 1rem;
            padding-right: 1rem;
        }

        .breadcrumb-nav {
            font-size: 0.8125rem;
        }

        .breadcrumb-nav .current {
            max-width: 160px;
        }

        .article-header h1 {
            font-size: 1.375rem;
        }

        .article-meta {
            flex-direction: row;
            flex-wrap: wrap;
            gap: 0.625rem 1rem;
        }

        .article-meta span {
            gap: 0.25rem;
        }

        .article-body {
            font-size: 0.9375rem;
            line-height: 1.85;
        }

        .article-body h2 {
            font-size: 1.1875rem;
            padding-left: 0.625rem;
        }

        .article-body h3 {
            font-size: 1.0625rem;
        }

        .article-body blockquote {
            padding: 0.75rem 1rem;
        }

        .article-body table {
            font-size: 0.8125rem;
        }

        .article-body table th,
        .article-body table td {
            padding: 0.5rem 0.625rem;
        }

        .article-tags {
            gap: 0.375rem;
            padding: 1rem 0;
        }

        .article-tags .tag-item {
            font-size: 0.75rem;
            padding: 0.25rem 0.625rem;
        }

        .related-card .related-body {
            padding: 0.875rem 1rem 1rem;
        }

        .not-found {
            padding: 2.5rem 1rem;
        }

        .not-found .not-found-icon {
            width: 60px;
            height: 60px;
            margin-bottom: 1rem;
        }

        .not-found .not-found-icon i {
            font-size: 1.75rem;
        }

        .not-found h1 {
            font-size: 1.375rem;
        }

        .btn-main {
            padding: 0.625rem 1.5rem;
            font-size: 0.875rem;
        }

        .btn-outline {
            padding: 0.625rem 1.5rem;
            font-size: 0.875rem;
        }
    }

    @media (min-width: 992px) {
        .bottom-tab-nav {
            display: none;
        }
    }