/* roulang page: index */
:root {
            --bg-primary: #0A0F24;
            --bg-deeper: #060A18;
            --brand-primary: #38B6FF;
            --brand-secondary: #00E5A0;
            --accent: #7B6CFF;
            --hot: #FF5D73;
            --text-primary: #EDF2FF;
            --text-secondary: #93A0C8;
            --text-muted: #5E6A8F;
            --border-card: rgba(255, 255, 255, 0.10);
            --border-hover: rgba(56, 182, 255, 0.35);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
            --glow-btn: 0 0 24px rgba(56, 182, 255, 0.35);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            background: none;
            border: none;
            color: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-bg {
            position: fixed;
            inset: 0;
            z-index: -2;
            background:
                radial-gradient(ellipse at 20% 0%, rgba(56, 182, 255, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 10%, rgba(0, 229, 160, 0.05) 0%, transparent 40%),
                var(--bg-primary);
        }
        .site-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 24px 24px;
            -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.2));
            mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.2));
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 36, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 20px rgba(56, 182, 255, 0.25);
        }
        .logo-mark svg {
            width: 22px;
            height: 22px;
            color: #fff;
        }
        .logo-text {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .logo-badge {
            font-size: 0.65rem;
            padding: 2px 8px;
            border-radius: 999px;
            background: rgba(56, 182, 255, 0.15);
            border: 1px solid rgba(56, 182, 255, 0.3);
            color: var(--brand-primary);
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-links a {
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all .3s ease;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.active {
            color: var(--text-primary);
            background: rgba(56, 182, 255, 0.12);
            border: 1px solid rgba(56, 182, 255, 0.2);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 10px;
            padding: 0 12px;
            height: 40px;
            width: 220px;
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .search-box svg {
            width: 14px;
            height: 14px;
            flex-shrink: 0;
        }
        .search-box span {
            flex: 1;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .kbd {
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 0.65rem;
            color: var(--text-muted);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.875rem;
            padding: 10px 20px;
            transition: all .3s cubic-bezier(.4, 0, .2, 1);
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            box-shadow: var(--glow-btn);
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(56, 182, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: var(--text-primary);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.35);
        }
        .btn-ghost:active {
            transform: scale(0.97);
        }
        .btn:focus-visible,
        .nav-links a:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--brand-primary);
            outline-offset: 2px;
        }
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 80px 0 60px;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
            width: 100%;
        }
        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-title .gradient-text {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 480px;
            line-height: 1.7;
        }
        .hero-cta-group {
            display: flex;
            gap: 16px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .hero-trust {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .hero-trust svg {
            width: 14px;
            height: 14px;
            color: var(--brand-secondary);
        }
        .phone-card {
            position: relative;
            width: 100%;
            max-width: 360px;
            aspect-ratio: 9/16;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            background: linear-gradient(135deg, rgba(56, 182, 255, 0.2), rgba(0, 229, 160, 0.1)), var(--bg-deeper);
            margin: 0 auto;
        }
        .phone-card .phone-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .phone-card::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 10, 24, 0.95) 0%, rgba(6, 10, 24, 0.3) 40%, rgba(6, 10, 24, 0.1) 100%);
            z-index: 1;
        }
        .phone-header {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 20px;
        }
        .phone-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
        }
        .phone-user {
            flex: 1;
        }
        .phone-name {
            font-size: 0.85rem;
            font-weight: 600;
        }
        .phone-desc {
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        .phone-follow {
            font-size: 0.7rem;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--hot);
            color: #fff;
            font-weight: 600;
            border: none;
        }
        .phone-content {
            position: relative;
            z-index: 2;
            padding: 0 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            height: calc(100% - 140px);
            padding-bottom: 24px;
        }
        .phone-content h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .phone-content p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .phone-cta {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            border-radius: 10px;
            padding: 10px 20px;
            text-align: center;
            font-weight: 600;
            box-shadow: var(--glow-btn);
        }
        .section {
            padding: 80px 0;
        }
        .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 48px;
        }
        .section-heading h2 {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .section-heading h2::before {
            content: '';
            width: 8px;
            height: 28px;
            border-radius: 4px;
            background: linear-gradient(to bottom, var(--brand-primary), var(--brand-secondary));
            display: inline-block;
            margin-right: 8px;
            vertical-align: middle;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .hot-card {
            position: relative;
            aspect-ratio: 9/16;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            background: var(--bg-deeper);
            transition: all .3s ease;
            box-shadow: var(--shadow-card);
        }
        .hot-card:nth-child(1) {
            transform: translateY(-12px);
        }
        .hot-card:nth-child(4) {
            transform: translateY(12px);
        }
        .hot-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }
        .hot-card:hover .hot-cover {
            transform: scale(1.05);
        }
        .hot-cover {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            transition: transform .5s ease;
        }
        .hot-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(6, 10, 24, 0.85) 0%, rgba(6, 10, 24, 0.2) 50%, transparent 100%);
        }
        .hot-body {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            z-index: 2;
        }
        .hot-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(255, 93, 115, 0.9);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .hot-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            z-index: 2;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }
        .hot-icon svg {
            width: 18px;
            height: 18px;
            margin-left: 3px;
        }
        .hot-title {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .hot-tag {
            font-size: 0.7rem;
            color: var(--brand-primary);
            background: rgba(56, 182, 255, 0.1);
            padding: 2px 10px;
            border-radius: 999px;
            display: inline-block;
        }
        .grass-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .grass-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            background: rgba(255, 255, 255, 0.03);
            transition: all .3s ease;
        }
        .grass-item:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }
        .grass-num {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            min-width: 48px;
            text-align: center;
        }
        .grass-cover {
            width: 104px;
            height: 72px;
            border-radius: 10px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }
        .grass-info {
            flex: 1;
            min-width: 0;
        }
        .grass-name {
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 2px;
        }
        .grass-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .grass-rate {
            font-size: 0.75rem;
            color: var(--brand-secondary);
            font-weight: 600;
            margin-top: 4px;
            font-variant-numeric: tabular-nums;
        }
        .grass-btn {
            font-size: 0.8rem;
            padding: 6px 16px;
            border-radius: 999px;
            border: 1px solid rgba(56, 182, 255, 0.3);
            color: var(--brand-primary);
            transition: all .3s;
            white-space: nowrap;
        }
        .grass-btn:hover {
            background: rgba(56, 182, 255, 0.1);
        }
        .testi-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 8px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .testi-scroll::-webkit-scrollbar {
            height: 4px;
        }
        .testi-scroll::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }
        .testi-card {
            flex: 0 0 340px;
            scroll-snap-align: start;
            padding: 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            background: rgba(255, 255, 255, 0.04);
            transition: all .3s;
        }
        .testi-card:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.06);
        }
        .testi-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }
        .testi-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--brand-primary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            color: #fff;
        }
        .testi-name {
            font-size: 0.85rem;
            font-weight: 600;
        }
        .testi-time {
            font-size: 0.7rem;
            color: var(--text-muted);
        }
        .testi-stars {
            color: #FBBF24;
            font-size: 0.75rem;
            margin-bottom: 8px;
        }
        .testi-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .cta-banner {
            position: relative;
            padding: 60px 0;
            overflow: hidden;
            background:
                linear-gradient(135deg, rgba(56, 182, 255, 0.15), rgba(0, 229, 160, 0.1)),
                var(--bg-deeper);
            border-top: 1px solid rgba(56, 182, 255, 0.2);
            border-bottom: 1px solid rgba(0, 229, 160, 0.1);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .cta-features {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.8rem;
            margin-bottom: 20px;
        }
        .cta-features span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .cta-features svg {
            width: 14px;
            height: 14px;
            color: var(--brand-secondary);
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .news-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all .3s;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-cover {
            width: 200px;
            height: 120px;
            border-radius: var(--radius-md);
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
            border: 1px solid var(--border-card);
        }
        .news-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .news-info h3 {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-info h3 a:hover {
            color: var(--brand-primary);
        }
        .news-summary {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 10px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .news-meta .tag {
            padding: 2px 10px;
            border-radius: 999px;
            background: rgba(56, 182, 255, 0.1);
            color: var(--brand-primary);
        }
        .news-meta a {
            color: var(--brand-primary);
            font-weight: 500;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 0;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all .3s;
            background: rgba(255, 255, 255, 0.02);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 500;
            width: 100%;
            text-align: left;
        }
        .faq-question svg {
            width: 18px;
            height: 18px;
            color: var(--text-muted);
            transition: transform .3s;
            flex-shrink: 0;
        }
        .faq-question.open svg {
            transform: rotate(45deg);
            color: var(--brand-primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
            padding: 0 20px;
            font-size: 0.875rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .faq-answer-inner {
            padding-bottom: 18px;
        }
        .site-footer {
            background: var(--bg-deeper);
            border-top: 1px solid rgba(56, 182, 255, 0.15);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-top: 12px;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: all .3s;
        }
        .footer-col a:hover {
            color: var(--brand-primary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.75rem;
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-card);
            align-items: center;
            justify-content: center;
        }
        .mobile-menu-btn svg {
            width: 18px;
            height: 18px;
        }
        .mobile-menu {
            display: none;
            padding: 12px 24px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(10, 15, 36, 0.95);
        }
        .mobile-menu a {
            display: block;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .mobile-menu a.active {
            color: var(--brand-primary);
        }
        .scroll-edge {
            position: relative;
        }
        .scroll-edge::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 60px;
            background: linear-gradient(to left, rgba(10, 15, 36, 0.95), transparent);
            pointer-events: none;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        @media (max-width:1024px) {
            .nav-links {
                display: none;
            }
            .search-box {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: clamp(2rem, 5vw, 3rem);
            }
            .phone-card {
                max-width: 300px;
            }
            .hot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .hot-card:nth-child(1),
            .hot-card:nth-child(4) {
                transform: none;
            }
            .grass-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width:640px) {
            .header-inner {
                height: 60px;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-badge {
                display: none;
            }
            .btn {
                font-size: 0.8rem;
                padding: 8px 14px;
            }
            .hero-section {
                padding: 60px 0 40px;
                min-height: auto;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 12px;
            }
            .hero-cta-group .btn {
                width: 100%;
            }
            .hero-trust {
                justify-content: center;
            }
            .phone-card {
                max-width: 260px;
            }
            .section {
                padding: 48px 0;
            }
            .hot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hot-card {
                aspect-ratio: 3/4;
            }
            .hot-body {
                padding: 14px;
            }
            .hot-title {
                font-size: 0.8rem;
            }
            .grass-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .grass-cover {
                width: 100%;
                height: 120px;
            }
            .testi-card {
                flex-basis: 280px;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-cover {
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (min-width:1025px) {
            .mobile-menu {
                display: none !important;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0F24;
            --bg-deeper: #060A18;
            --bg-glass: rgba(255, 255, 255, 0.05);
            --brand-blue: #38B6FF;
            --brand-teal: #00E5A0;
            --accent-purple: #7B6CFF;
            --hot-red: #FF5D73;
            --text-primary: #EDF2FF;
            --text-secondary: #93A0C8;
            --text-muted: #5E6A8F;
            --border-glass: rgba(255, 255, 255, 0.10);
            --border-hover: rgba(56, 182, 255, 0.35);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.25);
            --glow-blue: 0 0 24px rgba(56, 182, 255, 0.35);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deeper);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .container-narrow {
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 15, 36, 0.7);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: box-shadow 0.3s ease;
        }
        .site-header:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 1rem;
        }
        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand-blue);
            filter: drop-shadow(0 0 12px rgba(56, 182, 255, 0.4));
        }
        .logo-mark svg {
            width: 100%;
            height: 100%;
        }
        .logo-text {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
        }
        .logo-badge {
            font-size: 0.65rem;
            background: linear-gradient(135deg, rgba(56, 182, 255, 0.15), rgba(0, 229, 160, 0.15));
            border: 1px solid rgba(56, 182, 255, 0.25);
            padding: 2px 10px;
            border-radius: 999px;
            color: var(--brand-teal);
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 0.9rem;
            font-weight: 500;
        }
        .nav-links a {
            padding: 0.5rem 0.9rem;
            border-radius: 999px;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            font-size: 0.875rem;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-links a.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(56, 182, 255, 0.2), rgba(0, 229, 160, 0.15));
            box-shadow: 0 0 12px rgba(56, 182, 255, 0.15);
            font-weight: 600;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .cmd-search {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            border-radius: 999px;
            padding: 0.4rem 0.4rem 0.4rem 0.9rem;
            color: var(--text-muted);
            font-size: 0.8rem;
            cursor: pointer;
            transition: all 0.25s ease;
            min-width: 180px;
        }
        .cmd-search:hover {
            border-color: rgba(56, 182, 255, 0.3);
            background: rgba(255, 255, 255, 0.08);
        }
        .cmd-search .kbd {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 6px;
            padding: 0.1rem 0.4rem;
            font-size: 0.7rem;
            color: var(--text-secondary);
            font-family: monospace;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.6rem 1.2rem;
            cursor: pointer;
            border: none;
            transition: all 0.25s ease;
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-secondary);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-primary {
            background: linear-gradient(135deg, #38B6FF, #00E5A0);
            color: #fff;
            box-shadow: 0 0 20px rgba(56, 182, 255, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2);
            font-weight: 700;
        }
        .btn-primary:hover {
            box-shadow: 0 0 40px rgba(56, 182, 255, 0.55), 0 6px 16px rgba(0, 0, 0, 0.25);
            transform: translateY(-1px);
            filter: brightness(1.08);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid rgba(56, 182, 255, 0.4);
            color: var(--brand-blue);
            font-weight: 600;
        }
        .btn-outline:hover {
            border-color: var(--brand-blue);
            background: rgba(56, 182, 255, 0.1);
            box-shadow: 0 0 16px rgba(56, 182, 255, 0.2);
        }
        .btn-lg {
            padding: 0.9rem 2rem;
            font-size: 1rem;
            border-radius: 14px;
        }
        .btn:focus-visible,
        .cmd-search:focus-within {
            outline: 2px solid var(--brand-blue);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.4rem;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.25rem;
            padding: 1rem 1.5rem 1.5rem;
            background: rgba(10, 15, 36, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mobile-menu a {
            padding: 0.7rem 0.8rem;
            border-radius: 12px;
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
        }
        .mobile-menu a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
        }
        .mobile-menu a.active {
            background: rgba(56, 182, 255, 0.12);
            color: var(--brand-blue);
        }
        .page-hero {
            position: relative;
            padding: 4rem 0 3rem;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            left: 0;
            height: 100%;
            background: radial-gradient(ellipse at 80% 20%, rgba(56, 182, 255, 0.08) 0%, transparent 50%), radial-gradient(ellipse at 20% 80%, rgba(0, 229, 160, 0.05) 0%, transparent 50%);
            pointer-events: none;
        }
        .page-hero .grid-texture {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }
        .page-hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.75rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--brand-blue);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin: 0;
        }
        .page-hero .hero-sub {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-gap {
            padding: 4rem 0;
        }
        .section-title-wrap {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 2.5rem;
        }
        .section-title-wrap h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            padding-left: 0.9rem;
            border-left: 4px solid var(--brand-blue);
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            max-width: 600px;
            margin-top: -2rem;
            margin-bottom: 2.5rem;
        }
        .card-glass {
            background: var(--bg-glass);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: all 0.3s ease;
        }
        .card-glass:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card), 0 0 24px rgba(56, 182, 255, 0.08);
            transform: translateY(-2px);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            background: rgba(56, 182, 255, 0.1);
            border: 1px solid rgba(56, 182, 255, 0.15);
            color: var(--brand-blue);
        }
        .chip-hot {
            background: rgba(255, 93, 115, 0.12);
            border-color: rgba(255, 93, 115, 0.25);
            color: #ff7790;
        }
        .chip-teal {
            background: rgba(0, 229, 160, 0.1);
            border-color: rgba(0, 229, 160, 0.2);
            color: var(--brand-teal);
        }
        .data-block {
            background: linear-gradient(135deg, rgba(56, 182, 255, 0.08), rgba(0, 229, 160, 0.04));
            border: 1px solid rgba(56, 182, 255, 0.12);
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            transition: all 0.3s ease;
        }
        .data-block:hover {
            border-color: rgba(56, 182, 255, 0.3);
            box-shadow: 0 0 20px rgba(56, 182, 255, 0.1);
        }
        .data-num {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #38B6FF, #00E5A0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }
        .step-line {
            position: relative;
            padding-left: 2.5rem;
        }
        .step-line::before {
            content: '';
            position: absolute;
            left: 0.7rem;
            top: 0.4rem;
            width: 1px;
            height: calc(100% - 1.5rem);
            background: linear-gradient(to bottom, rgba(56, 182, 255, 0.5), rgba(0, 229, 160, 0.3), transparent);
        }
        .step-number {
            position: absolute;
            left: 0;
            top: 0.1rem;
            width: 1.6rem;
            height: 1.6rem;
            border-radius: 50%;
            background: linear-gradient(135deg, #38B6FF, #00E5A0);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 12px rgba(56, 182, 255, 0.35);
        }
        .faq-item {
            border: 1px solid var(--border-glass);
            border-radius: 14px;
            background: rgba(255, 255, 255, 0.03);
            margin-bottom: 0.75rem;
            transition: border-color 0.3s;
        }
        .faq-item:hover {
            border-color: rgba(56, 182, 255, 0.25);
        }
        .faq-question {
            padding: 1rem 1.25rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.95rem;
            gap: 1rem;
        }
        .faq-question .icon {
            color: var(--brand-teal);
            transition: transform 0.3s;
            flex-shrink: 0;
            font-size: 0.8rem;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.875rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        .faq-answer p {
            padding: 0 1.25rem 1rem;
        }
        .cta-banner {
            background: linear-gradient(135deg, rgba(56, 182, 255, 0.15), rgba(0, 229, 160, 0.08)), var(--bg-deeper);
            border: 1px solid rgba(56, 182, 255, 0.15);
            border-radius: 24px;
            padding: 3rem 2rem;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .cta-banner-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .site-footer {
            background: var(--bg-deeper);
            border-top: 1px solid rgba(56, 182, 255, 0.15);
            padding: 3.5rem 0 2rem;
            margin-top: 4rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            margin-top: 1rem;
            max-width: 340px;
        }
        .footer-col h4 {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            font-weight: 700;
        }
        .footer-col a {
            display: block;
            color: var(--text-muted);
            font-size: 0.85rem;
            padding: 0.3rem 0;
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: var(--brand-blue);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .login-flow-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.2rem;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all 0.3s ease;
        }
        .login-flow-item:hover {
            border-color: rgba(56, 182, 255, 0.25);
            background: rgba(56, 182, 255, 0.05);
        }
        .platform-card {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
        }
        .platform-card:hover {
            border-color: rgba(56, 182, 255, 0.35);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), 0 0 16px rgba(56, 182, 255, 0.1);
            transform: translateY(-3px);
        }
        .platform-icon {
            font-size: 2rem;
            margin-bottom: 0.75rem;
            color: var(--brand-blue);
        }
        .platform-card:nth-child(2) .platform-icon {
            color: var(--brand-teal);
        }
        .platform-card:nth-child(3) .platform-icon {
            color: var(--accent-purple);
        }
        .platform-card:nth-child(4) .platform-icon {
            color: #ff8a9a;
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .mobile-menu.active {
                display: flex;
            }
            .cmd-search {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-right .btn-ghost {
                display: none;
            }
            .header-right .btn-primary {
                padding: 0.55rem 1rem;
                font-size: 0.82rem;
            }
            .page-hero {
                padding: 3rem 0 2rem;
            }
            .section-gap {
                padding: 3rem 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .logo-text {
                font-size: 1.15rem;
            }
            .logo-badge {
                font-size: 0.55rem;
                padding: 1px 8px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
            }
            .header-right .btn-primary {
                padding: 0.5rem 0.85rem;
                font-size: 0.78rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-sub {
                font-size: 0.9rem;
            }
            .step-line {
                padding-left: 2.2rem;
            }
            .step-number {
                width: 1.4rem;
                height: 1.4rem;
                font-size: 0.65rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }
        .grid-bg {
            background-color: #060A18;
        }

/* roulang page: article */
:root {
  --bg-primary: #0A0F24;
  --bg-deep: #060A18;
  --bg-glass: rgba(255,255,255,0.05);
  --primary: #38B6FF;
  --accent: #00E5A0;
  --violet: #7B6CFF;
  --danger: #FF5D73;
  --text-main: #EDF2FF;
  --text-sub: #93A0C8;
  --text-weak: #5E6A8F;
  --border-card: rgba(255,255,255,0.10);
  --border-hover: rgba(56,182,255,0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.25);
  --glow-primary: 0 0 24px rgba(56,182,255,0.35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC','Microsoft YaHei','Noto Sans SC','system-ui','sans-serif';
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,15,36,0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 32px;
}
.logo-wrap {
  display: flex; align-items: center; gap: 10px; flex-shrink: 0;
}
.logo-mark {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px;
  background: linear-gradient(135deg, #38B6FF, #00E5A0);
  border-radius: 10px;
  color: #fff;
  box-shadow: 0 0 16px rgba(56,182,255,0.3);
}
.logo-mark svg { width: 20px; height: 20px; }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; color: #EDF2FF; }
.logo-badge {
  font-size: 0.6rem; font-weight: 600;
  background: rgba(56,182,255,0.15);
  color: #38B6FF;
  padding: 3px 8px; border-radius: 999px;
  border: 1px solid rgba(56,182,255,0.25);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 0.95rem; font-weight: 500;
  color: var(--text-sub);
  transition: color 0.2s;
  position: relative;
  padding: 8px 0;
}
.nav-links a:hover { color: var(--text-main); }
.nav-links a.active { color: var(--text-main); }
.nav-links a.active::after {
  content: '';
  position: absolute; bottom: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(135deg, #38B6FF, #00E5A0);
  border-radius: 999px;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 8px 12px;
  width: 220px;
  transition: border-color 0.2s, background 0.2s;
}
.search-box:focus-within { border-color: rgba(56,182,255,0.4); background: rgba(255,255,255,0.08); }
.search-box i { color: var(--text-weak); font-size: 0.85rem; }
.search-box input { background: transparent; border: none; outline: none; color: var(--text-main); font-size: 0.85rem; width: 100%; }
.search-box input::placeholder { color: var(--text-weak); }
.search-box kbd {
  font-size: 0.7rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--text-weak);
  white-space: nowrap;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; font-weight: 600; font-size: 0.9rem;
  transition: all 0.25s ease; border: none; cursor: pointer; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #38B6FF, #00E5A0);
  color: #fff;
  padding: 10px 20px;
  box-shadow: 0 0 24px rgba(56,182,255,0.35);
}
.btn-primary:hover { box-shadow: 0 0 40px rgba(56,182,255,0.5); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.97); }
.btn-ghost {
  background: transparent; color: var(--text-sub);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 10px 18px;
}
.btn-ghost:hover { color: var(--text-main); background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.25); }
.hamburger {
  display: none; background: transparent; border: none;
  color: var(--text-main); font-size: 1.4rem;
  width: 40px; height: 40px; border-radius: 8px;
  align-items: center; justify-content: center;
  transition: background 0.2s;
}
.hamburger:hover { background: rgba(255,255,255,0.06); }
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  gap: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(10,15,36,0.98);
}
.mobile-nav a {
  padding: 12px 8px;
  color: var(--text-sub);
  font-size: 0.95rem; font-weight: 500;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s;
}
.mobile-nav a:hover { color: var(--text-main); background: rgba(255,255,255,0.05); }
.mobile-nav a.active { color: var(--text-main); background: rgba(56,182,255,0.1); }
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.85rem; color: var(--text-weak);
  padding: 28px 0 8px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-sub); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-weak); opacity: 0.5; }
.article-wrap { padding: 28px 0 0; }
.article-header { margin-bottom: 36px; }
.article-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 16px;
}
.article-meta { display: flex; align-items: center; gap: 14px; font-size: 0.875rem; color: var(--text-sub); flex-wrap: wrap; }
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-divider { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,0.2); flex-shrink: 0; }
.article-body {
  font-size: 1rem; line-height: 1.75;
  color: var(--text-main);
  max-width: 720px;
  margin: 0 auto;
}
.article-body h2 {
  font-size: 1.5rem; font-weight: 700;
  margin: 36px 0 16px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 1.2rem; font-weight: 600;
  margin: 28px 0 14px;
  color: var(--text-main);
}
.article-body p { margin-bottom: 20px; color: var(--text-main); opacity: 0.92; }
.article-body img { border-radius: 16px; margin: 28px 0; box-shadow: 0 8px 32px rgba(0,0,0,0.35); width: 100%; height: auto; }
.article-body ul, .article-body ol { margin: 0 0 20px; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: rgba(56,182,255,0.06);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 12px 12px 0;
  color: var(--text-sub);
}
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 4px; }
.article-body code {
  background: rgba(255,255,255,0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  color: #00E5A0;
}
.article-pagination {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  margin: 48px 0;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.pagination-link {
  padding: 16px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  transition: all 0.25s ease;
}
.pagination-link:hover {
  border-color: rgba(56,182,255,0.3);
  background: rgba(56,182,255,0.06);
  transform: translateY(-2px);
}
.pagination-link .label { font-size: 0.75rem; color: var(--text-weak); margin-bottom: 4px; }
.pagination-link .value { font-size: 0.95rem; font-weight: 500; color: var(--text-main); line-height: 1.4; }
.pagination-link.text-right { text-align: right; }
.pagination-center { display: flex; align-items: center; justify-content: center; }
.related-section { margin-top: 48px; padding: 0 0 24px; }
.section-title {
  font-size: 1.5rem; font-weight: 700;
  color: var(--text-main);
  margin-bottom: 24px;
  display: flex; align-items: center; gap: 12px;
}
.section-title::before {
  content: '';
  width: 4px; height: 24px;
  background: linear-gradient(180deg, #38B6FF, #00E5A0);
  border-radius: 999px;
}
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
}
.related-card:hover {
  border-color: rgba(56,182,255,0.35);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.related-card .related-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: #0A0F24; }
.related-card .related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-card .related-info { padding: 16px 18px; }
.related-card .related-info h3 {
  font-size: 1rem; font-weight: 600; margin-bottom: 6px;
  color: var(--text-main); line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.related-card .related-time { font-size: 0.8rem; color: var(--text-weak); display: flex; align-items: center; gap: 6px; }
.cta-section {
  margin: 56px 0 0;
  padding: 56px 0;
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(56,182,255,0.12), rgba(0,229,160,0.08)), #0A0F24;
  border: 1px solid rgba(56,182,255,0.15);
}
.cta-section::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(56,182,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,182,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.cta-content { position: relative; text-align: center; z-index: 1; }
.cta-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}
.cta-content p { color: var(--text-sub); font-size: 1rem; margin-bottom: 24px; }
.cta-content .cta-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px;
  font-size: 1rem; font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #38B6FF, #00E5A0);
  border-radius: 12px;
  box-shadow: 0 0 24px rgba(56,182,255,0.35);
  transition: all 0.25s ease;
}
.cta-content .cta-btn:hover { box-shadow: 0 0 40px rgba(56,182,255,0.55); transform: translateY(-2px); }
.cta-content .cta-btn:active { transform: scale(0.97); }
.site-footer {
  background: #060A18;
  border-top: 1px solid rgba(56,182,255,0.2);
  margin-top: 80px;
  padding: 64px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 0.9rem; color: var(--text-sub); line-height: 1.7; margin-top: 16px; max-width: 320px; }
.footer-col h4 { font-size: 0.95rem; font-weight: 600; color: var(--text-main); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 0.875rem; color: var(--text-sub); margin-bottom: 12px; transition: color 0.2s; }
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.8rem; color: var(--text-weak);
}
.not-found { text-align: center; padding: 60px 24px; background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.06); border-radius: 20px; }
.not-found h2 { font-size: 2rem; color: var(--text-main); margin-bottom: 12px; }
.not-found p { color: var(--text-sub); margin-bottom: 24px; }
.comment-section { margin: 48px 0 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06); min-height: 80px; }
:focus-visible { outline: 2px solid var(--violet); outline-offset: 2px; border-radius: 4px; }
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .header-actions .search-box { display: none; }
  .hamburger { display: flex; }
  .header-actions .btn-ghost { padding: 8px 14px; font-size: 0.85rem; }
  .header-actions .btn-primary { padding: 8px 16px; font-size: 0.85rem; }
  .mobile-nav.open { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .header-actions .btn-ghost { display: none; }
  .header-actions .btn-primary { padding: 8px 12px; font-size: 0.8rem; }
  .header-container { height: 64px; gap: 16px; }
  .logo-text { font-size: 1.1rem; }
  .logo-badge { display: none; }
  .article-title { font-size: 1.5rem; }
  .article-pagination { grid-template-columns: 1fr; }
  .pagination-center { display: none; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .breadcrumb { font-size: 0.8rem; flex-wrap: wrap; }
  .container { padding: 0 16px; }
  .cta-section { padding: 40px 20px; }
}