/* roulang page: index */
:root {
            --bg: #0A0D12;
            --surface: #121720;
            --card: #171D27;
            --primary: #17E0A0;
            --accent: #F5B82E;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --text: #F2F5F8;
            --text-secondary: #A0AAB5;
            --text-muted: #6B7A8C;
            --border: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(23, 224, 160, 0.4);
            --radius-lg: 16px;
            --radius-sm: 12px;
            --radius-xs: 8px;
            --shadow-card: 0 0 0 1px rgba(255, 255, 255, 0.06), 0 8px 30px rgba(0, 0, 0, 0.35);
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-num: "Inter", "Roboto", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            font-family: var(--font-sans);
            cursor: pointer;
        }

        input {
            font-family: var(--font-sans);
        }

        .grid-container {
            max-width: 1200px;
        }

        /* ── 按钮 ── */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #06241a;
        }

        .btn-primary:hover {
            background: rgba(23, 224, 160, 0.92);
            color: #06241a;
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(23, 224, 160, 0.25);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(23, 224, 160, 0.5);
            color: var(--text);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(1px);
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
        }

        .btn-block {
            width: 100%;
        }

        /* ── Header ── */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: transparent;
            height: 64px;
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(10, 13, 18, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
            height: 56px;
        }

        .site-header .grid-container {
            width: 100%;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 100%;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 36px;
            flex: 1;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary) 0%, #0f9e6c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 18px;
            color: #06241a;
            box-shadow: 0 0 16px rgba(23, 224, 160, 0.3);
        }

        .brand-text {
            font-size: 17px;
            font-weight: 600;
            font-family: var(--font-serif);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .brand-text em {
            font-style: normal;
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
        }

        .main-nav ul {
            list-style: none;
            display: flex;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            font-size: 15px;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 6px 2px;
            position: relative;
            transition: color 0.2s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
            border-radius: 2px;
        }

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

        .main-nav a:hover::after {
            transform: scaleX(1);
        }

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

        .main-nav a.active::after {
            transform: scaleX(1);
        }

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

        .search-toggle {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 16px;
            padding: 8px;
            transition: color 0.2s ease;
        }

        .search-toggle:hover {
            color: var(--primary);
        }

        .search-box {
            position: absolute;
            top: 110%;
            right: 0;
            width: 280px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-card);
            padding: 12px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.3s ease;
            z-index: 100;
        }

        .search-box.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .search-box input {
            width: 100%;
            height: 40px;
            background: #0f141b;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-xs);
            padding: 0 14px;
            color: var(--text);
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(23, 224, 160, 0.1);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            width: 32px;
            height: 32px;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            padding: 0;
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.is-open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            background: rgba(10, 13, 18, 0.97);
            backdrop-filter: blur(16px);
            padding: 32px 24px;
            z-index: 999;
            border-bottom: 1px solid var(--border);
            display: none;
        }

        .mobile-nav.open {
            display: block;
        }

        .mobile-nav .mobile-nav-link {
            display: block;
            font-size: 20px;
            padding: 16px 0;
            color: var(--text);
            text-decoration: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        /* ── Hero ── */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            background: var(--bg);
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(23, 224, 160, 0.07) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding-right: 40px;
        }

        .hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 700;
            line-height: 1.15;
            margin: 0 0 20px;
            letter-spacing: -0.02em;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 36px;
            max-width: 520px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-trust {
            display: flex;
            gap: 32px;
            margin-top: 56px;
            flex-wrap: wrap;
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hero-trust-item i {
            color: var(--primary);
            font-size: 16px;
        }

        .hero-visual {
            position: relative;
            z-index: 1;
            min-height: 420px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--card);
            box-shadow: var(--shadow-card);
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            min-height: 420px;
            object-fit: cover;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 13, 18, 0.4) 0%, transparent 60%);
        }

        .hero-visual-grid {
            position: absolute;
            inset: 0;
            background-image:
                linear-gradient(rgba(23, 224, 160, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(23, 224, 160, 0.05) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
            z-index: 1;
        }

        /* ── 通用 Section ── */
        .section {
            padding: 72px 0;
        }

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

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: clamp(24px, 3vw, 40px);
            font-weight: 600;
            line-height: 1.25;
            margin: 0 0 16px;
            letter-spacing: -0.02em;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 560px;
            margin: 0;
        }

        .section-title-block {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .section-title-block::before {
            content: '';
            display: block;
            width: 6px;
            height: 24px;
            background: var(--primary);
            border-radius: 3px;
        }

        /* ── 痛点区 ── */
        .pain-section {
            padding: 72px 0;
        }

        .pain-list {
            border-top: 1px solid var(--border);
        }

        .pain-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 24px 16px;
            border-bottom: 1px solid var(--border);
            position: relative;
            transition: background 0.2s ease;
        }

        .pain-item:first-child {
            border-left: 3px solid var(--primary);
            background: rgba(23, 224, 160, 0.03);
        }

        .pain-item:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .pain-num {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-muted);
            min-width: 48px;
            line-height: 1.4;
        }

        .pain-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text);
        }

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

        /* ── 解决方案 ── */
        .solution-section {
            background: var(--surface);
            padding: 72px 0;
        }

        .solution-block {
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }

        .solution-block:last-child {
            border-bottom: none;
        }

        .solution-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 260px;
            background: var(--card);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .solution-img img {
            width: 100%;
            height: 100%;
            min-height: 260px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .solution-block:hover .solution-img img {
            transform: scale(1.02);
        }

        .solution-num {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .solution-text h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 600;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .solution-text p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0 0 24px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: gap 0.2s ease;
        }

        .text-link:hover {
            color: var(--primary);
            gap: 12px;
        }

        /* 图片兜底 */
        .solution-img.img-fallback,
        .hero-visual.img-fallback,
        .card-thumb.img-fallback {
            background: linear-gradient(135deg, var(--surface) 0%, var(--card) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-family: var(--font-serif);
            font-size: 16px;
        }

        .solution-img.img-fallback::after,
        .hero-visual.img-fallback::after,
        .card-thumb.img-fallback::after {
            content: 'PG电子官方网站';
            opacity: 0.4;
        }

        /* ── 数据区 ── */
        .stats-section {
            padding: 72px 0;
            background: var(--surface);
        }

        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: transform 0.2s ease, border-color 0.2s ease;
        }

        .stat-item:hover {
            transform: translateY(-4px);
            border-color: rgba(23, 224, 160, 0.3);
        }

        .stat-num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* ── 证言区 ── */
        .testimonial-section {
            padding: 72px 0;
        }

        .testimonial-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: border-color 0.2s ease, transform 0.2s ease;
        }

        .testimonial-card:hover {
            border-color: rgba(23, 224, 160, 0.2);
            transform: translateY(-4px);
        }

        .testimonial-card .quote-mark {
            font-family: var(--font-serif);
            font-size: 56px;
            color: var(--primary);
            line-height: 1;
            opacity: 0.3;
            margin-bottom: 8px;
        }

        .testimonial-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .testimonial-person {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, #0f9e6c 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #06241a;
        }

        .testimonial-name {
            font-size: 14px;
            font-weight: 600;
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        .testimonial-stars {
            color: var(--accent);
            font-size: 13px;
            margin-left: auto;
            display: flex;
            gap: 2px;
        }

        /* ── 最新信息 ── */
        .news-section {
            padding: 72px 0;
            background: var(--surface);
        }

        .news-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .news-header h2 {
            font-family: var(--font-serif);
            font-size: clamp(24px, 2.5vw, 32px);
            font-weight: 600;
            margin: 0;
        }

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

        .news-list-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.2s ease;
            text-decoration: none;
            color: inherit;
        }

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

        .news-list-item:hover {
            background: rgba(23, 224, 160, 0.02);
        }

        .news-date {
            flex-shrink: 0;
            width: 80px;
            text-align: center;
            padding: 10px 0;
            border-right: 1px solid var(--border);
            margin-right: 8px;
        }

        .news-date-day {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.1;
            display: block;
        }

        .news-date-month {
            font-size: 12px;
            color: var(--text-muted);
            display: block;
            margin-top: 4px;
        }

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

        .news-body .tag {
            display: inline-block;
            background: rgba(23, 224, 160, 0.1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 999px;
            margin-bottom: 6px;
        }

        .news-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 4px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-body h4 a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .news-body h4 a:hover {
            color: var(--primary);
        }

        .news-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .news-link {
            flex-shrink: 0;
        }

        .news-link a {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .news-link a:hover {
            gap: 10px;
        }

        .news-empty {
            border: 1px dashed rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-muted);
            background: var(--card);
        }

        .news-empty i {
            font-size: 32px;
            display: block;
            margin-bottom: 12px;
            opacity: 0.4;
        }

        /* ── FAQ ── */
        .faq-section {
            padding: 72px 0;
        }

        .faq-heading {
            position: sticky;
            top: 120px;
        }

        .faq-heading h2 {
            font-family: var(--font-serif);
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 600;
            margin: 0 0 16px;
            line-height: 1.3;
        }

        .faq-heading p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .custom-accordion {
            background: transparent;
            border: none;
        }

        .custom-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

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

        .custom-accordion .accordion-item:hover {
            border-color: rgba(23, 224, 160, 0.25);
        }

        .custom-accordion .accordion-item.is-active {
            border-color: rgba(23, 224, 160, 0.4);
        }

        .custom-accordion .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            border: none;
            line-height: 1.4;
            position: relative;
        }

        .custom-accordion .accordion-title:hover {
            color: var(--primary);
            background: rgba(255, 255, 255, 0.02);
        }

        .custom-accordion .accordion-title::before {
            content: '+';
            font-size: 20px;
            color: var(--text-muted);
            margin-left: 16px;
            transition: all 0.3s ease;
            order: 2;
            flex-shrink: 0;
        }

        .custom-accordion .accordion-item.is-active .accordion-title::before {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .custom-accordion .accordion-content {
            background: transparent;
            padding: 0 20px 18px;
            border: none;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ── CTA ── */
        .cta-section {
            padding: 80px 0;
            background: var(--surface);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245, 184, 46, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            font-family: var(--font-serif);
            font-size: clamp(24px, 3vw, 38px);
            font-weight: 600;
            margin: 0 0 16px;
        }

        .cta-inner p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 480px;
            margin: 0 auto 32px;
        }

        /* ── Footer ── */
        .site-footer {
            background: #06080c;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
        }

        .footer-grid {
            padding-bottom: 48px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 280px;
            margin: 0;
        }

        .footer-links h5,
        .footer-contact h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 16px;
        }

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

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

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            text-decoration: none;
            line-height: 1.4;
            transition: color 0.2s ease;
        }

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

        .footer-contact {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .footer-contact i {
            color: var(--text-muted);
            width: 20px;
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ── reveal 动画 ── */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ── Focus 可见性 ── */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ── 响应式 ── */
        @media screen and (max-width: 1023px) {
            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }

            .hero-content {
                padding-right: 0;
                text-align: center;
            }

            .hero-trust {
                justify-content: center;
            }

            .hero-btns {
                justify-content: center;
            }

            .hero-visual {
                margin-top: 40px;
                min-height: 320px;
            }

            .hero-visual img {
                min-height: 320px;
            }

            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .faq-heading {
                position: static;
                margin-bottom: 32px;
            }
        }

        @media screen and (max-width: 639px) {
            .section {
                padding: 48px 0;
            }

            .hero {
                padding: 100px 0 48px;
            }

            .hero h1 {
                font-size: 30px;
            }

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

            .hero-trust {
                gap: 16px;
                flex-direction: column;
                align-items: center;
            }

            .brand-text {
                font-size: 15px;
            }

            .search-box {
                width: 220px;
            }

            .stats-section .stat-item {
                margin-bottom: 16px;
            }

            .news-list-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .news-date {
                width: 60px;
                border-right: none;
                border-bottom: 1px solid var(--border);
                padding: 0 0 8px;
                margin: 0;
                text-align: left;
            }

            .news-body h4 {
                white-space: normal;
            }

            .news-body p {
                white-space: normal;
            }

            .testimonial-card {
                margin-bottom: 16px;
            }

            .footer-grid .cell {
                margin-bottom: 24px;
            }
        }

/* roulang page: article */
:root {
        --bg: #0A0D12;
        --surface: #121720;
        --card: #171D27;
        --primary: #17E0A0;
        --accent: #F5B82E;
        --success: #22C55E;
        --warning: #F59E0B;
        --error: #EF4444;
        --text-main: #F2F5F8;
        --text-secondary: #A0AAB5;
        --text-muted: #6B7A8C;
        --border: rgba(255,255,255,0.08);
        --border-hover: rgba(23,224,160,0.4);
        --radius-lg: 16px;
        --radius-md: 12px;
        --radius-sm: 8px;
        --shadow-card: 0 0 0 1px rgba(255,255,255,0.06), 0 8px 30px rgba(0,0,0,0.35);
        --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        --font-heading: 'Noto Serif SC', 'Source Han Serif SC', 'Georgia', serif;
        --font-num: 'Inter', 'Roboto', sans-serif;
    }

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

    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

    body {
        font-family: var(--font-body);
        font-size: 16px;
        line-height: 1.75;
        color: var(--text-main);
        background: var(--bg);
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
    }

    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; transition: color .25s ease; }
    a:hover { color: var(--primary); }
    button { font-family: inherit; cursor: pointer; }

    .grid-container { max-width: 1200px; }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 14px 28px;
        font-size: 14px;
        font-weight: 600;
        line-height: 1;
        border-radius: var(--radius-md);
        border: 1px solid transparent;
        transition: all .25s ease;
        cursor: pointer;
        text-decoration: none;
        white-space: nowrap;
    }
    .btn-primary {
        background: var(--primary);
        color: #06241A;
        box-shadow: 0 2px 16px rgba(23,224,160,0.2);
    }
    .btn-primary:hover {
        background: #12c98b;
        color: #06241A;
        transform: translateY(-2px);
        box-shadow: 0 6px 24px rgba(23,224,160,0.28);
    }
    .btn-primary:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(23,224,160,0.15); }
    .btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
    .btn-secondary {
        background: transparent;
        border-color: rgba(255,255,255,0.2);
        color: var(--text-main);
    }
    .btn-secondary:hover {
        background: rgba(255,255,255,0.06);
        border-color: rgba(23,224,160,0.5);
        color: var(--primary);
        transform: translateY(-2px);
    }
    .btn-secondary:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
    .btn-sm { padding: 10px 20px; font-size: 13px; border-radius: 10px; }

    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        text-decoration: none;
        flex-shrink: 0;
    }
    .brand-mark {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: var(--primary);
        color: #06241A;
        font-family: var(--font-num);
        font-weight: 800;
        font-size: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        letter-spacing: 0;
        box-shadow: 0 0 20px rgba(23,224,160,0.25);
    }
    .brand-text {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-main);
        letter-spacing: -0.02em;
        line-height: 1.2;
        white-space: nowrap;
    }
    .brand-text em { font-style: normal; font-size: 14px; color: var(--primary); font-weight: 500; margin-left: 2px; }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: 64px;
        background: transparent;
        transition: all .3s ease;
        border-bottom: 1px solid transparent;
    }
    .site-header.scrolled {
        height: 56px;
        background: rgba(10,13,18,0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom-color: rgba(255,255,255,0.06);
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
        gap: 24px;
    }
    .header-left { display: flex; align-items: center; gap: 36px; }
    .header-right { display: flex; align-items: center; gap: 16px; }

    .main-nav ul { display: flex; list-style: none; gap: 28px; margin: 0; padding: 0; }
    .main-nav a {
        font-size: 15px;
        font-weight: 400;
        color: var(--text-secondary);
        text-decoration: none;
        padding: 4px 2px;
        position: relative;
        transition: color .25s;
    }
    .main-nav a::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: -2px;
        width: 100%;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .3s ease;
    }
    .main-nav a:hover { color: var(--primary); }
    .main-nav a:hover::after { transform: scaleX(1); }
    .main-nav a.active { color: var(--primary); font-weight: 500; }
    .main-nav a.active::after { transform: scaleX(1); }

    .search-toggle, .menu-toggle {
        background: none;
        border: 1px solid var(--border);
        border-radius: 10px;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        font-size: 15px;
        transition: all .25s;
    }
    .search-toggle:hover, .menu-toggle:hover {
        border-color: var(--border-hover);
        color: var(--primary);
        background: rgba(255,255,255,0.04);
    }
    .search-toggle:focus-visible, .menu-toggle:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

    .menu-toggle { display: none; }

    .search-panel {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        z-index: 999;
        background: rgba(10,13,18,0.95);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        padding: 20px 0;
        transform: translateY(-120%);
        transition: transform .35s ease;
        visibility: hidden;
    }
    .search-panel.open { transform: translateY(0); visibility: visible; }
    .search-form { display: flex; gap: 12px; align-items: center; position: relative; }
    .search-form .search-icon { position: absolute; right: auto; left: 16px; color: var(--text-muted); font-size: 14px; pointer-events: none; }
    .search-form input[type="search"] {
        flex: 1;
        height: 44px;
        border-radius: var(--radius-sm);
        border: 1px solid rgba(255,255,255,0.1);
        background: #0F141B;
        color: var(--text-main);
        padding: 0 16px 0 44px;
        font-size: 14px;
        transition: border-color .25s, box-shadow .25s;
    }
    .search-form input[type="search"]::placeholder { color: var(--text-muted); }
    .search-form input[type="search"]:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(23,224,160,0.12);
    }
    .search-form .btn { height: 44px; padding: 0 24px; border-radius: var(--radius-sm); flex-shrink: 0; }

    .mobile-menu {
        position: fixed;
        top: 64px;
        right: 0;
        bottom: 0;
        width: 280px;
        max-width: 85vw;
        background: #0C1118;
        border-left: 1px solid var(--border);
        padding: 32px 28px;
        transform: translateX(100%);
        transition: transform .35s ease;
        z-index: 998;
        visibility: hidden;
    }
    .mobile-menu.open { transform: translateX(0); visibility: visible; }
    .mobile-menu nav { display: flex; flex-direction: column; gap: 20px; }
    .mobile-menu a {
        font-size: 18px;
        font-weight: 500;
        color: var(--text-secondary);
        padding: 8px 0;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        transition: color .25s;
    }
    .mobile-menu a:hover, .mobile-menu a.active { color: var(--primary); }

    .site-header.scrolled ~ .search-panel, .site-header.scrolled + .search-panel { top: 56px; }

    .article-hero {
        position: relative;
        min-height: 320px;
        display: flex;
        align-items: flex-end;
        padding: 96px 0 40px;
        overflow: hidden;
        border-bottom: 1px solid var(--border);
    }
    .hero-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
        opacity: 0.5;
        filter: brightness(0.55);
    }
    .hero-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(10,13,18,0.35) 0%, rgba(10,13,18,0.85) 100%);
    }
    .article-hero .grid-container { position: relative; z-index: 2; width: 100%; }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(23,224,160,0.12);
        border: 1px solid rgba(23,224,160,0.25);
        color: var(--primary);
        font-size: 13px;
        font-weight: 500;
        padding: 6px 16px;
        border-radius: 999px;
        margin-bottom: 16px;
    }
    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
    }
    .breadcrumb a { color: var(--text-secondary); transition: color .25s; }
    .breadcrumb a:hover { color: var(--primary); }
    .breadcrumb .sep { color: var(--text-muted); opacity: .6; }
    .breadcrumb .current { color: var(--text-main); max-width: 260px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

    .article-main { padding: 56px 0 64px; }
    .article-head {
        margin-bottom: 0;
        padding-bottom: 32px;
        border-bottom: 1px solid var(--border);
    }
    .article-head h1 {
        font-family: var(--font-heading);
        font-size: clamp(30px, 4vw, 44px);
        font-weight: 700;
        line-height: 1.25;
        letter-spacing: -0.02em;
        margin: 0 0 20px;
        color: var(--text-main);
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 20px;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 24px;
    }
    .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
    .article-meta i { color: var(--primary); font-size: 13px; }
    .article-summary {
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-secondary);
        padding: 16px 20px;
        background: rgba(23,224,160,0.04);
        border-left: 3px solid var(--primary);
        border-radius: 0 10px 10px 0;
    }

    .article-content {
        padding: 36px 0 40px;
        max-width: 760px;
        margin: 0 auto;
    }
    .article-content p {
        margin-bottom: 24px;
        color: rgba(242,245,248,0.85);
        line-height: 1.85;
    }
    .article-content h2 {
        font-family: var(--font-heading);
        font-size: 26px;
        font-weight: 600;
        margin: 40px 0 18px;
        color: var(--text-main);
        letter-spacing: -0.01em;
        line-height: 1.4;
    }
    .article-content h3 {
        font-family: var(--font-heading);
        font-size: 20px;
        font-weight: 600;
        margin: 32px 0 14px;
        color: var(--text-main);
        line-height: 1.45;
    }
    .article-content h4 {
        font-size: 17px;
        font-weight: 600;
        margin: 28px 0 12px;
        color: var(--text-main);
    }
    .article-content img {
        border-radius: var(--radius-lg);
        margin: 24px 0;
        box-shadow: var(--shadow-card);
    }
    .article-content figcaption, .article-content .img-caption {
        font-size: 13px;
        color: var(--text-muted);
        text-align: center;
        margin-top: -12px;
        margin-bottom: 24px;
    }
    .article-content blockquote {
        margin: 28px 0;
        padding: 20px 24px;
        border-left: 4px solid var(--primary);
        background: rgba(23,224,160,0.05);
        border-radius: 0 12px 12px 0;
        color: var(--text-secondary);
        font-size: 16px;
        line-height: 1.85;
    }
    .article-content ul, .article-content ol {
        margin: 0 0 24px 24px;
        color: rgba(242,245,248,0.85);
    }
    .article-content ul li, .article-content ol li { margin-bottom: 8px; }
    .article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 4px; text-decoration-color: rgba(23,224,160,0.3); }
    .article-content a:hover { text-decoration-color: var(--primary); }
    .article-content table {
        width: 100%;
        margin: 24px 0;
        border-collapse: collapse;
        font-size: 14px;
    }
    .article-content th {
        background: var(--surface);
        color: var(--text-main);
        font-weight: 600;
        padding: 12px 16px;
        border: 1px solid var(--border);
        text-align: left;
    }
    .article-content td {
        padding: 12px 16px;
        border: 1px solid var(--border);
        color: var(--text-secondary);
    }

    .article-empty {
        text-align: center;
        padding: 64px 32px;
        background: var(--surface);
        border-radius: var(--radius-lg);
        border: 1px dashed rgba(255,255,255,0.16);
        margin: 36px auto;
    }
    .empty-icon {
        width: 64px;
        height: 64px;
        border-radius: 18px;
        background: rgba(23,224,160,0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
        color: var(--primary);
        font-size: 24px;
    }
    .article-empty h3 { font-size: 22px; margin-bottom: 12px; color: var(--text-main); font-family: var(--font-heading); }
    .article-empty p { color: var(--text-secondary); margin-bottom: 24px; }
    .article-empty .btn { margin-top: 8px; }

    .article-footer-info {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        padding: 20px 0;
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        margin-top: 8px;
    }
    .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(23,224,160,0.1);
        color: var(--primary);
        font-size: 12px;
        font-weight: 500;
        padding: 4px 12px;
        border-radius: 999px;
        transition: background .25s;
    }
    .tag:hover { background: rgba(23,224,160,0.2); }
    .share-links { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-muted); }
    .share-links a {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        border: 1px solid var(--border);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        font-size: 14px;
        transition: all .25s;
    }
    .share-links a:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }

    .article-pager {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        margin: 32px 0;
    }
    .pager-item {
        padding: 24px;
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        transition: all .25s;
        min-height: 120px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .pager-item:hover {
        border-color: var(--border-hover);
        transform: translateY(-3px);
        box-shadow: 0 8px 24px rgba(0,0,0,0.25);
    }
    .pager-label {
        font-size: 12px;
        color: var(--primary);
        font-weight: 500;
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .pager-title { font-size: 15px; font-weight: 600; color: var(--text-main); margin-bottom: 6px; line-height: 1.5; }
    .pager-title a:hover { color: var(--primary); }
    .pager-date { font-size: 12px; color: var(--text-muted); }
    .pager-next { text-align: left; }

    .related-section {
        padding: 64px 0;
        background: var(--surface);
        border-top: 1px solid var(--border);
    }
    .section-head {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 32px;
    }
    .section-badge {
        width: 8px;
        height: 24px;
        border-radius: 4px;
        background: var(--primary);
        display: inline-block;
        flex-shrink: 0;
    }
    .section-head h2 {
        font-family: var(--font-heading);
        font-size: 26px;
        font-weight: 600;
        letter-spacing: -0.01em;
        margin: 0;
        color: var(--text-main);
    }
    .related-card {
        display: block;
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        height: 100%;
        transition: all .3s ease;
        box-shadow: var(--shadow-card);
    }
    .related-card:hover {
        border-color: rgba(23,224,160,0.3);
        transform: translateY(-4px);
        box-shadow: 0 0 0 1px rgba(23,224,160,0.2), 0 12px 32px rgba(0,0,0,0.4);
    }
    .related-thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--surface); }
    .related-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s ease;
    }
    .related-card:hover .related-thumb img { transform: scale(1.05); }
    .related-thumb::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 50%, rgba(10,13,18,0.5) 100%);
    }
    .related-body { padding: 20px 22px 22px; }
    .related-body .tag { margin-bottom: 10px; }
    .related-body h3 {
        font-family: var(--font-heading);
        font-size: 18px;
        font-weight: 600;
        line-height: 1.5;
        margin: 10px 0 12px;
        color: var(--text-main);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        min-height: 54px;
    }
    .related-date { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }

    .article-cta {
        padding: 56px 0 72px;
        text-align: center;
    }
    .link-arrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 16px;
        font-weight: 600;
        color: var(--primary);
        text-decoration: none;
        transition: gap .25s;
    }
    .link-arrow:hover { gap: 14px; color: var(--primary); }
    .link-arrow i { font-size: 14px; }

    .site-footer {
        background: #06080C;
        border-top: 1px solid rgba(255,255,255,0.06);
        padding: 56px 0 0;
    }
    .footer-grid { padding-bottom: 40px; }
    .footer-brand .brand { margin-bottom: 16px; }
    .footer-brand p {
        font-size: 14px;
        line-height: 1.8;
        color: var(--text-muted);
        max-width: 360px;
    }
    .footer-links h5, .footer-contact h5 {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 18px;
        letter-spacing: 0;
    }
    .footer-links ul { list-style: none; margin: 0; padding: 0; }
    .footer-links li { margin-bottom: 12px; }
    .footer-links a {
        font-size: 13px;
        color: var(--text-secondary);
        text-decoration: none;
        transition: color .25s;
    }
    .footer-links a:hover { color: var(--primary); }
    .footer-contact p {
        font-size: 13px;
        color: var(--text-secondary);
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .footer-contact i { color: var(--primary); width: 16px; text-align: center; }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.06);
        padding: 20px 0;
        text-align: center;
    }
    .footer-bottom p {
        font-size: 13px;
        color: var(--text-muted);
        margin: 0;
    }

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

    @media screen and (max-width: 1023px) {
        .main-nav { display: none; }
        .menu-toggle { display: flex; }
        .header-left { gap: 16px; }
        .header-right .btn-sm { display: none; }
        .article-hero { min-height: 260px; padding: 84px 0 32px; }
        .article-main { padding: 40px 0 48px; }
        .related-section { padding: 48px 0; }
        .footer-grid { gap: 32px; }
    }

    @media screen and (max-width: 639px) {
        .site-header { height: 56px; }
        .site-header.scrolled { height: 52px; }
        .brand-text { font-size: 18px; }
        .brand-text em { font-size: 12px; }
        .brand-mark { width: 32px; height: 32px; font-size: 18px; border-radius: 9px; }
        .article-hero { min-height: 220px; padding: 72px 0 28px; }
        .article-head h1 { font-size: 28px; line-height: 1.3; }
        .article-meta { gap: 12px; font-size: 12px; }
        .article-summary { font-size: 14px; padding: 14px 16px; }
        .article-content { padding: 28px 0 32px; }
        .article-content p { font-size: 15px; line-height: 1.8; }
        .article-pager { grid-template-columns: 1fr; gap: 16px; }
        .pager-item { padding: 18px 20px; min-height: 96px; }
        .article-footer-info { flex-direction: column; align-items: flex-start; }
        .related-section { padding: 40px 0; }
        .section-head h2 { font-size: 22px; }
        .related-body h3 { font-size: 16px; }
        .article-cta { padding: 40px 0 56px; }
        .link-arrow { font-size: 14px; }
        .footer-grid { padding-bottom: 24px; }
        .footer-bottom { padding: 16px 0; }
    }

/* roulang page: category1 */
:root {
    --bg: #0A0D12;
    --surface: #121720;
    --card: #171D27;
    --primary: #17E0A0;
    --accent: #F5B82E;
    --success: #22C55E;
    --warning: #F59E0B;
    --error: #EF4444;
    --text-main: #F2F5F8;
    --text-secondary: #A0AAB5;
    --text-weak: #6B7A8C;
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(23,224,160,0.4);
    --radius-lg: 16px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --shadow: 0 0 0 1px rgba(255,255,255,0.06), 0 8px 30px rgba(0,0,0,0.35);
    --font-sans: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
    --font-serif: 'Noto Serif SC','Source Han Serif SC',serif;
    --header-h: 64px;
    --header-h-scrolled: 56px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text-main);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--text-main); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--primary); }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; color: inherit; }

/* ===================== 按钮 ===================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    white-space: nowrap;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--primary);
    color: #06241A;
    box-shadow: 0 2px 12px rgba(23,224,160,0.2);
}
.btn-primary:hover {
    background: rgba(23,224,160,0.9);
    color: #06241A;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(23,224,160,0.3);
}
.btn-primary:active { transform: translateY(0); }
.btn-ghost {
    background: transparent;
    color: var(--text-main);
    border-color: rgba(255,255,255,0.2);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-hover);
    color: var(--primary);
    transform: translateY(-2px);
}
.btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 10px; }
.btn-block { width: 100%; }

/* ===================== 标签 ===================== */
.tag {
    display: inline-block;
    background: rgba(23,224,160,0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 999px;
    line-height: 1.4;
    transition: background 0.2s ease, color 0.2s ease;
}
.tag:hover {
    background: rgba(23,224,160,0.2);
    color: var(--primary);
}
.tag-accent {
    background: rgba(245,184,46,0.12);
    color: var(--accent);
}

/* ===================== Header ===================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    height: var(--header-h);
    display: flex;
    align-items: center;
    transition: height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
    background: transparent;
}
.site-header.scrolled {
    height: var(--header-h-scrolled);
    background: rgba(10,13,18,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 20px;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 32px;
    flex: 1;
}
.header-right {
    display: flex;
    align-items: center;
    gap: 14px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--primary);
    color: #06241A;
    font-family: var(--font-serif);
    font-size: 22px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(23,224,160,0.25);
}
.brand-text {
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
    line-height: 1.2;
    white-space: nowrap;
}
.brand-text em {
    font-style: normal;
    color: var(--primary);
    font-weight: 600;
    font-size: 15px;
    margin-left: 2px;
}
.main-nav ul {
    display: flex;
    align-items: center;
    gap: 28px;
}
.main-nav ul li a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 2px;
    position: relative;
    transition: color 0.2s ease;
}
.main-nav ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: var(--primary);
}
.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 100%;
}
.search-toggle {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}
.search-toggle:hover {
    color: var(--primary);
    border-color: var(--border);
    background: rgba(255,255,255,0.04);
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    cursor: pointer;
}
.hamburger span {
    width: 20px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.header-cta { flex-shrink: 0; }

.search-bar {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(10,13,18,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.search-bar.open {
    max-height: 88px;
    padding: 16px 0;
}
.search-bar .grid-container {
    display: flex;
    gap: 12px;
    align-items: center;
}
.search-bar input[type="text"] {
    flex: 1;
    height: 44px;
    background: #0F141B;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 0 16px 0 40px;
    color: var(--text-main);
    font-size: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236B7A8C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m21 21-4.3-4.3'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: 14px center;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-bar input[type="text"]:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(23,224,160,0.1);
    outline: none;
}
.search-bar .btn { height: 44px; }

/* ===================== 分类页 Hero ===================== */
.cat-hero {
    padding: 140px 0 60px;
    background: linear-gradient(180deg, rgba(10,13,18,0.92), var(--bg)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    position: relative;
    overflow: hidden;
}
.cat-hero::before {
    content: "";
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(23,224,160,0.07), transparent 70%);
    pointer-events: none;
}
.cat-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(30px, 4vw, 42px);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    color: var(--text-main);
}
.cat-hero-desc {
    font-size: 16px;
    line-height: 1.85;
    color: var(--text-secondary);
    max-width: 560px;
    margin-bottom: 24px;
}
.cat-hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.cat-hero-visual {
    position: relative;
}
.hero-image-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: relative;
    height: 220px;
}
.hero-image-wrapper::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10,13,18,0.2), rgba(10,13,18,0.6));
}
.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ===================== 面包屑 ===================== */
.breadcrumb-bar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
}
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-weak);
}
.breadcrumb a {
    color: var(--text-weak);
    transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current {
    color: var(--text-main);
    font-weight: 500;
}

/* ===================== 统计条 ===================== */
.cat-stats {
    padding: 44px 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.cat-stats .stat-item {
    text-align: center;
    padding: 20px 12px;
    border-right: 1px solid var(--border);
}
.cat-stats .stat-item:last-child { border-right: none; }
.cat-stats .stat-num {
    font-family: 'Inter', 'Roboto', sans-serif;
    font-size: clamp(32px, 3vw, 46px);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}
.cat-stats .stat-label {
    font-size: 14px;
    color: var(--text-weak);
}

/* ===================== 主内容区 ===================== */
.cat-main {
    padding: 72px 0;
    background: var(--bg);
}
.section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}
.heading-bar {
    width: 4px;
    height: 22px;
    background: var(--primary);
    border-radius: 2px;
}
.section-heading h2 {
    font-family: var(--font-serif);
    font-size: clamp(22px, 2.5vw, 30px);
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin: 0;
}
.section-heading .heading-more {
    margin-left: auto;
    font-size: 14px;
    color: var(--text-weak);
    transition: color 0.2s ease;
}
.section-heading .heading-more:hover { color: var(--primary); }

/* ===================== 文章列表 ===================== */
.news-list {
    display: flex;
    flex-direction: column;
}
.news-item {
    display: flex;
    gap: 24px;
    padding: 26px 0;
    border-bottom: 1px solid var(--border);
    position: relative;
    transition: background 0.2s ease, padding-left 0.3s ease;
}
.news-item:hover {
    background: rgba(255,255,255,0.02);
    padding-left: 12px;
}
.news-item:hover::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 3px;
    border-radius: 2px;
    background: var(--primary);
}
.news-item:last-child { border-bottom: none; }
.news-num {
    font-family: 'Inter', 'Roboto', sans-serif;
    font-size: 32px;
    font-weight: 300;
    color: var(--text-weak);
    line-height: 1;
    min-width: 52px;
    padding-top: 2px;
    transition: color 0.2s ease;
}
.news-item:hover .news-num { color: var(--primary); }
.news-content { flex: 1; }
.news-content h3 {
    font-size: 17px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 8px;
}
.news-content h3 a {
    color: var(--text-main);
    transition: color 0.2s ease;
}
.news-content h3 a:hover { color: var(--primary); }
.news-content p {
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-weak);
}
.news-meta .date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.read-more {
    margin-left: auto;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap 0.2s ease;
}
.read-more:hover { gap: 10px; color: var(--primary); }

/* ===================== 侧边栏 ===================== */
.sidebar {
    position: sticky;
    top: 90px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.side-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 26px 24px;
    box-shadow: var(--shadow);
    transition: border-color 0.2s ease;
}
.side-card:hover { border-color: rgba(23,224,160,0.25); }
.side-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.side-card p {
    font-size: 13px;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 10px;
}
.side-card p:last-child { margin-bottom: 0; }
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.side-cta-card {
    position: relative;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    min-height: 270px;
    display: flex;
    align-items: flex-end;
    background: linear-gradient(135deg, rgba(23,224,160,0.12), rgba(10,13,18,0.88)), var(--card);
}
.cta-bg-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
}
.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10,13,18,0.3) 0%, rgba(10,13,18,0.88) 100%);
}
.cta-content {
    position: relative;
    z-index: 1;
    padding: 28px 24px;
    width: 100%;
}
.cta-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(23,224,160,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
    margin-bottom: 14px;
}
.cta-content h4 {
    border: none;
    padding: 0;
    margin-bottom: 8px;
    font-size: 18px;
}
.cta-content p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

/* ===================== 底部 CTA ===================== */
.cat-bottom-cta {
    padding: 56px 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
.cat-bottom-cta::before {
    content: "";
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 420px;
    height: 180px;
    background: radial-gradient(ellipse, rgba(245,184,46,0.06), transparent 70%);
    pointer-events: none;
}
.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}
.cta-inner p {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-main);
    margin: 0;
}
.cta-inner .btn { flex-shrink: 0; }

/* ===================== Footer ===================== */
.site-footer {
    background: #06080C;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 64px 0 0;
}
.footer-grid {
    margin-bottom: 40px;
}
.footer-brand .brand {
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 360px;
}
.footer-links h5,
.footer-contact h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}
.footer-links ul li {
    margin-bottom: 10px;
}
.footer-links ul li a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-links ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-contact p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-contact p i {
    color: var(--primary);
    font-size: 14px;
    width: 18px;
    text-align: center;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 22px 0;
}
.footer-bottom p {
    font-size: 13px;
    color: var(--text-weak);
    text-align: center;
    margin: 0;
}

/* ===================== 响应式 ===================== */
@media screen and (max-width: 1023px) {
    .cat-hero { padding: 120px 0 48px; }
    .cat-hero-visual { margin-top: 28px; }
    .hero-image-wrapper { height: 200px; }
    .sidebar { position: static; margin-top: 40px; }
    .cat-stats .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 16px 12px;
    }
    .cat-stats .stat-item:nth-child(even) { border-right: none; }
    .cat-stats .stat-item:last-child { border-bottom: none; }
    .header-left { gap: 16px; }
    .main-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10,13,18,0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        transform: translateX(-100%);
        transition: transform 0.4s ease;
        z-index: -1;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .main-nav.open { transform: translateX(0); }
    .main-nav ul {
        flex-direction: column;
        gap: 0;
        text-align: center;
    }
    .main-nav ul li { width: 100%; }
    .main-nav ul li a {
        display: block;
        font-size: 20px;
        padding: 18px 24px;
        color: var(--text-main);
    }
    .main-nav ul li a::after { display: none; }
    .hamburger { display: flex; }
    .header-cta { display: none; }
}

@media screen and (max-width: 639px) {
    .cat-hero { padding: 110px 0 40px; }
    .cat-hero-actions { flex-direction: column; align-items: stretch; }
    .cat-hero-actions .btn { width: 100%; }
    .hero-image-wrapper { height: 160px; }
    .cat-stats { padding: 20px 0; }
    .cat-stats .stat-item {
        padding: 14px 10px;
    }
    .cat-stats .stat-num { font-size: 30px; }
    .cat-stats .stat-label { font-size: 13px; }
    .cat-main { padding: 48px 0; }
    .news-item { gap: 14px; padding: 22px 0; }
    .news-num { font-size: 26px; min-width: 36px; }
    .news-content h3 { font-size: 15px; }
    .news-content p { font-size: 13px; }
    .news-meta { gap: 10px; }
    .read-more { margin-left: 0; }
    .cta-inner { flex-direction: column; text-align: center; }
    .cta-inner .btn { width: 100%; }
    .search-bar .grid-container { flex-direction: column; align-items: stretch; }
    .search-bar.open { max-height: 170px; }
    .site-footer { padding: 48px 0 0; }
    .footer-grid { margin-bottom: 24px; }
    .footer-brand p { max-width: 100%; }
}

/* roulang page: category2 */
:root {
            --bg: #0A0D12;
            --surface: #121720;
            --card: #171D27;
            --card-hover: #1A222E;
            --primary: #17E0A0;
            --primary-dark: #0F8F68;
            --accent: #F5B82E;
            --success: #22C55E;
            --warning: #F59E0B;
            --error: #EF4444;
            --text: #F2F5F8;
            --text-secondary: #A0AAB5;
            --text-muted: #6B7A8C;
            --border: rgba(255,255,255,0.08);
            --border-hover: rgba(23,224,160,0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 0 0 1px rgba(255,255,255,0.06), 0 8px 30px rgba(0,0,0,0.35);
            --shadow-lg: 0 0 0 1px rgba(23,224,160,0.12), 0 12px 40px rgba(0,0,0,0.45);
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-num: "Inter", "Roboto", sans-serif;
            --header-h: 64px;
            --header-h-s: 56px;
            --gap-section: clamp(48px, 7vw, 88px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: #4FF0BB;
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }

        ul {
            list-style: none;
        }

        /* Container */
        .grid-container {
            max-width: 1200px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--header-h);
            background: transparent;
            transition: background 0.35s ease, height 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
        }

        .site-header.scrolled {
            height: var(--header-h-s);
            background: rgba(10, 13, 18, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            position: relative;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 36px;
            height: 100%;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 18px;
            height: 100%;
        }

        .header-left::after {
            content: "";
            position: absolute;
            left: 55%;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 28px;
            background: var(--border);
            pointer-events: none;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), #0E8C67);
            color: #06241A;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 20px;
            line-height: 1;
            box-shadow: 0 0 20px rgba(23, 224, 160, 0.3);
        }

        .brand-text {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-text em {
            font-style: normal;
            color: var(--primary);
            margin-left: 1px;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .main-nav a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: rgba(242, 245, 248, 0.8);
            padding: 6px 2px;
            transition: color 0.25s ease;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }

        .search-toggle {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .search-toggle:hover {
            border-color: var(--border-hover);
            color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #06241A !important;
            font-size: 14px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            line-height: 1;
            white-space: nowrap;
            transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            opacity: 0.92;
            box-shadow: 0 4px 25px rgba(23, 224, 160, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: none;
        }

        .btn-primary.btn-sm {
            padding: 10px 22px;
            font-size: 13px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            padding: 12px 26px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.2);
            cursor: pointer;
            line-height: 1;
            transition: all 0.25s ease;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(23, 224, 160, 0.5);
            color: var(--primary);
        }

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

        .text-link i {
            transition: transform 0.3s ease;
        }

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

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 38px;
            height: 38px;
            padding: 8px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            height: 2px;
            width: 100%;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-h);
            left: 0;
            right: 0;
            background: rgba(10, 13, 18, 0.97);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding: 24px 0;
            z-index: 99;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu ul {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            font-size: 17px;
            font-weight: 500;
            color: var(--text);
            border-radius: var(--radius-sm);
            transition: all 0.25s ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(23, 224, 160, 0.06);
        }

        .mobile-menu .menu-cta {
            margin-top: 12px;
            padding: 0 16px;
        }

        .mobile-menu .btn-primary {
            width: 100%;
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            padding: 120px 0 56px;
            background: var(--bg);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .page-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
        }

        .page-hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse 60% 80% at 20% 50%, rgba(23, 224, 160, 0.07), transparent 60%),
                linear-gradient(90deg, rgba(10, 13, 18, 0.96) 0%, rgba(10, 13, 18, 0.82) 50%, rgba(10, 13, 18, 0.55) 100%);
        }

        .page-hero .grid-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.25s;
        }

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

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }

        .breadcrumb .current {
            color: var(--text);
        }

        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(32px, 4vw, 52px);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 18px;
        }

        .page-hero h1 span {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 26px;
        }

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

        .hero-cover {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            position: relative;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4 / 3;
            background: linear-gradient(135deg, var(--primary-dark), #0F766E);
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .hero-cover::after {
            content: "PG电子官方网站 栏目封面";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 8px 14px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.7);
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
        }

        /* Search Section */
        .search-section {
            position: relative;
            z-index: 5;
            margin-top: -30px;
            padding-bottom: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 6px;
            box-shadow: var(--shadow-card);
            max-width: 720px;
            margin: 0 auto;
            transition: border-color 0.3s ease;
        }

        .search-box:focus-within {
            border-color: rgba(23, 224, 160, 0.4);
            box-shadow: 0 0 0 3px rgba(23, 224, 160, 0.08), var(--shadow-card);
        }

        .search-box .search-icon {
            padding-left: 18px;
            padding-right: 12px;
            color: var(--text-muted);
            font-size: 15px;
        }

        .search-box input {
            flex: 1;
            height: 44px;
            background: transparent;
            border: none;
            padding: 0 8px;
            font-size: 15px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .search-box .btn-primary {
            height: 44px;
            padding: 0 28px;
            border-radius: 10px;
        }

        /* Main Sections */
        .main-section {
            padding: var(--gap-section) 0;
        }

        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            gap: 20px;
            flex-wrap: wrap;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 600;
            line-height: 1.3;
            letter-spacing: -0.02em;
            position: relative;
            padding-left: 18px;
        }

        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            border-radius: 4px;
            background: var(--primary);
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 720px;
        }

        /* Filter Tags */
        .filter-area {
            padding: 28px 0 8px;
        }

        .filter-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .filter-tag:hover {
            border-color: var(--border-hover);
            color: var(--primary);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #06241A;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* Library Cards */
        .lib-grid {
            margin-bottom: 36px;
        }

        .lib-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

        .lib-card:hover {
            transform: translateY(-4px);
            border-color: rgba(23, 224, 160, 0.25);
            box-shadow: var(--shadow-lg);
        }

        .lib-card-img {
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #1F2D3A, #0F766E);
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .lib-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(23, 224, 160, 0.22);
            backdrop-filter: blur(6px);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 999px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }

        .lib-card-tag-accent {
            background: rgba(245, 184, 46, 0.25);
            color: var(--accent);
        }

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

        .lib-card-body h3 {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 10px;
            color: var(--text);
        }

        .lib-card-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 18px;
            flex: 1;
        }

        .lib-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            font-size: 13px;
            color: var(--text-muted);
        }

        .lib-card-meta .text-link {
            font-size: 13px;
        }

        /* Large card (featured) */
        .lib-card-featured {
            flex-direction: row;
        }

        .lib-card-featured .lib-card-img {
            flex: 0 0 46%;
            min-height: 100%;
            aspect-ratio: auto;
        }

        .lib-card-featured .lib-card-body {
            flex: 1;
            padding: 32px;
        }

        .lib-card-featured .lib-card-body h3 {
            font-size: 24px;
            line-height: 1.35;
        }

        .lib-card-featured .lib-card-body p {
            font-size: 15px;
        }

        /* Vertical card */
        .lib-card-vertical .lib-card-img {
            aspect-ratio: 4 / 3.4;
            width: 100%;
        }

        /* Wide card highlight */
        .lib-card-wide {
            border-color: rgba(245, 184, 46, 0.18);
        }

        .lib-card-wide::before {
            content: "";
            position: absolute;
            top: 0;
            left: 24px;
            right: 24px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(245, 184, 46, 0.4), transparent);
        }

        .lib-card-wide .lib-card-img {
            aspect-ratio: 16 / 9;
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            padding: 20px 0 8px;
        }

        .pagination {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .page-link {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--card);
            border: 1px solid var(--border);
            transition: all 0.25s ease;
        }

        .page-link:hover {
            border-color: var(--border-hover);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .page-link.active {
            background: var(--primary);
            color: #06241A;
            border-color: var(--primary);
            font-weight: 600;
        }

        .page-link.disabled {
            opacity: 0.35;
            cursor: not-allowed;
            pointer-events: none;
        }

        .page-link.disabled:hover {
            transform: none;
            border-color: var(--border);
            color: var(--text-secondary);
        }

        /* FAQ Section */
        .faq-section {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: var(--gap-section) 0;
        }

        .faq-layout {
            display: flex;
            flex-direction: column;
            gap: 36px;
        }

        .faq-column-left {
            flex-shrink: 0;
        }

        .faq-column-right {
            flex: 1;
        }

        .faq-intro {
            margin-bottom: 0;
        }

        .faq-intro h2 {
            font-family: var(--font-serif);
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 600;
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .faq-intro h2 span {
            color: var(--primary);
        }

        .faq-intro p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .faq-intro .btn-secondary {
            border-color: rgba(23, 224, 160, 0.3);
        }

        .accordion {
            background: transparent;
            border: none;
            margin: 0;
        }

        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .accordion-item:hover {
            border-color: rgba(23, 224, 160, 0.25) !important;
        }

        .accordion-item.is-active {
            border-color: rgba(23, 224, 160, 0.35) !important;
        }

        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px !important;
            font-size: 15px !important;
            font-weight: 600 !important;
            color: var(--text) !important;
            background: transparent !important;
            border: none !important;
            line-height: 1.4;
            position: relative;
            transition: color 0.3s ease;
        }

        .accordion-title::before {
            content: "+";
            position: absolute;
            right: 22px;
            top: 50%;
            transform: translateY(-50%);
            font-family: var(--font-num);
            font-size: 20px;
            font-weight: 400;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .accordion-title:hover {
            color: var(--primary) !important;
        }

        .accordion-item.is-active .accordion-title {
            color: var(--primary) !important;
        }

        .accordion-item.is-active .accordion-title::before {
            transform: translateY(-50%) rotate(45deg);
        }

        .accordion-content {
            padding: 0 24px 22px !important;
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-secondary);
            background: transparent !important;
            border: none !important;
        }

        /* CTA Section */
        .cta-section {
            padding: var(--gap-section) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section .cta-glow {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(23, 224, 160, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-family: var(--font-serif);
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 600;
            line-height: 1.35;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
        }

        .cta-content h2 span {
            color: var(--primary);
        }

        .cta-content p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 28px;
        }

        .cta-content .btn-primary {
            padding: 15px 36px;
            font-size: 15px;
        }

        /* Footer */
        .site-footer {
            background: #06080C;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 56px;
        }

        .footer-grid {
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            max-width: 320px;
        }

        .footer-links h5,
        .footer-contact h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 18px;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }

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

        .footer-contact p {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact p i {
            color: var(--text-muted);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 20px 0;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
        }

        /* Fade Up Animation */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Focus States */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Responsive */
        @media (min-width: 1024px) {
            .faq-layout {
                flex-direction: row;
                gap: 56px;
            }

            .faq-column-left {
                width: 38%;
                max-width: 340px;
            }

            .faq-column-right {
                width: 62%;
            }
        }

        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .header-left::after {
                display: none;
            }

            .header-right .btn-primary {
                display: none;
            }

            .lib-card-featured {
                flex-direction: column;
            }

            .lib-card-featured .lib-card-img {
                flex: auto;
                aspect-ratio: 16 / 9;
                width: 100%;
            }

            .lib-card-featured .lib-card-img img {
                position: absolute;
                inset: 0;
            }

            .lib-card-featured .lib-card-img {
                position: relative;
                overflow: hidden;
            }
        }

        @media (max-width: 639px) {
            :root {
                --header-h: 56px;
            }

            .search-toggle {
                display: none;
            }

            .page-hero {
                min-height: 340px;
                padding-top: 96px;
                padding-bottom: 40px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
            }

            .search-box {
                flex-wrap: wrap;
                padding: 10px;
            }

            .search-box .search-icon {
                display: none;
            }

            .search-box input {
                width: 100%;
                flex: 0 0 100%;
                margin-bottom: 8px;
                background: var(--bg);
                border: 1px solid var(--border);
                border-radius: var(--radius-sm);
                padding: 0 14px;
            }

            .search-box .btn-primary {
                width: 100%;
            }

            .filter-tag {
                padding: 7px 16px;
                font-size: 12px;
            }

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

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

            .lib-card-body p {
                font-size: 13px;
            }

            .lib-card-featured .lib-card-body {
                padding: 22px;
            }

            .lib-card-featured .lib-card-body h3 {
                font-size: 19px;
            }

            .accordion-title {
                padding: 16px 18px !important;
                font-size: 14px !important;
                padding-right: 44px !important;
            }

            .accordion-content {
                padding: 0 18px 18px !important;
                font-size: 13px;
            }

            .accordion-title::before {
                right: 16px;
            }

            .footer-grid {
                gap: 24px;
            }

            .pagination {
                gap: 4px;
            }

            .page-link {
                min-width: 36px;
                height: 36px;
                padding: 0 10px;
                font-size: 13px;
            }
        }