/* roulang page: index */
:root {
            --bg: #0E0C12;
            --panel: #17141D;
            --card: #1E1925;
            --signal: #FF3E6C;
            --amber: #FFB342;
            --warm: #F5F1E8;
            --muted: #A79FAD;
            --green: #4CD7A9;
            --border: rgba(255,255,255,0.08);
            --radius-card: 18px;
            --radius-btn: 999px;
            --shadow-card: 0 20px 45px -20px rgba(0,0,0,0.65);
            --shadow-hover: 0 20px 50px -16px rgba(255,62,108,0.28);
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            margin: 0;
            background: var(--bg);
            color: var(--warm);
            font-family: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
        a:hover { color: var(--signal); }
        img { display: block; max-width: 100%; }
        button, input, textarea { font-family: inherit; }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(14,12,18,0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 16px;
            color: var(--warm);
            white-space: nowrap;
            z-index: 5;
            letter-spacing: 0.02em;
        }
        .nav-logo .logo-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 18px;
        }
        .nav-logo .logo-wave span {
            display: inline-block;
            width: 2.5px;
            border-radius: 2px;
            background: var(--signal);
        }
        .nav-logo .logo-wave span:nth-child(1) { height: 8px; }
        .nav-logo .logo-wave span:nth-child(2) { height: 14px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(3) { height: 18px; }
        .nav-logo .logo-wave span:nth-child(4) { height: 11px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(5) { height: 7px; }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-left { flex: 1; }
        .nav-right { flex: 1; justify-content: flex-end; }
        .nav-left a, .nav-right a {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-left a:hover, .nav-right a:hover, .nav-left a.active, .nav-right a.active {
            color: var(--signal);
        }
        .nav-left a.active::after, .nav-right a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--signal), transparent);
            border-radius: 2px;
        }
        /* 汉堡按钮 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 10;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--warm);
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        /* Hero */
        .hero-section {
            position: relative;
            padding: 96px 0 88px;
            background: url('/assets/images/3e1db7a0cfdaea92.webp') center/cover no-repeat;
            background-position: center 30%;
            min-height: 640px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14,12,18,0.78);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 60%, rgba(255,62,108,0.08) 0%, transparent 55%),
                        radial-gradient(ellipse at 75% 35%, rgba(255,179,66,0.05) 0%, transparent 45%);
            z-index: 1;
            pointer-events: none;
        }
        .hero-container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .hero-title {
            font-size: clamp(30px, 4.5vw, 52px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 20px;
            color: var(--warm);
            letter-spacing: 0.01em;
        }
        .hero-title .highlight {
            color: var(--signal);
        }
        .hero-sub {
            font-size: 17px;
            color: var(--muted);
            max-width: 520px;
            margin: 0 0 28px;
            line-height: 1.8;
        }
        .hero-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            flex-wrap: wrap;
        }
        .hero-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            background: rgba(30,25,37,0.85);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--warm);
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .hero-form input:focus {
            border-color: var(--signal);
            box-shadow: 0 0 0 2px rgba(255,62,108,0.15);
        }
        .hero-form input::placeholder {
            color: #6b6373;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--signal);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            border: none;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--signal), var(--amber));
            color: #fff;
            box-shadow: 0 12px 30px -8px rgba(255,62,108,0.35);
            transform: translateY(-1px);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 2px;
        }
        .btn-primary:active { transform: scale(0.98); }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 26px;
            background: transparent;
            color: var(--warm);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--signal);
            color: var(--signal);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 2px;
        }
        /* 信号卡 */
        .signal-card {
            background: rgba(30,25,37,0.9);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .signal-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .signal-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .signal-card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14,12,18,0.2) 0%, rgba(14,12,18,0.75) 100%);
        }
        .signal-card-body {
            padding: 20px 22px 22px;
        }
        .mini-data-row {
            display: flex;
            gap: 16px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .mini-data {
            flex: 1;
            min-width: 80px;
            text-align: center;
            padding: 10px 8px;
            background: rgba(255,255,255,0.04);
            border-radius: 12px;
            border: 1px solid var(--border);
        }
        .mini-data .num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 18px;
            font-weight: 700;
            color: var(--amber);
            display: block;
        }
        .mini-data .label {
            font-size: 11px;
            color: var(--muted);
            letter-spacing: 0.05em;
        }
        .wave-bar {
            display: flex;
            align-items: center;
            gap: 3px;
            height: 24px;
        }
        .wave-bar span {
            display: inline-block;
            width: 3px;
            border-radius: 3px;
            background: var(--signal);
            opacity: 0.7;
        }
        .wave-bar span:nth-child(1) { height: 8px; }
        .wave-bar span:nth-child(2) { height: 16px; background: var(--amber); }
        .wave-bar span:nth-child(3) { height: 22px; }
        .wave-bar span:nth-child(4) { height: 13px; background: var(--amber); opacity: 0.8; }
        .wave-bar span:nth-child(5) { height: 18px; }
        .wave-bar span:nth-child(6) { height: 9px; }
        .wave-bar span:nth-child(7) { height: 20px; background: var(--amber); opacity: 0.7; }
        .wave-bar span:nth-child(8) { height: 12px; }
        .wave-bar span:nth-child(9) { height: 24px; background: var(--signal); }
        /* Section 通用 */
        .section {
            padding: 88px 0;
            position: relative;
        }
        .section-alt {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-tag {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 12px;
            color: var(--amber);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .section-tag::before {
            content: '';
            display: inline-block;
            width: 20px;
            height: 2px;
            background: var(--signal);
            border-radius: 2px;
        }
        .section-title {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 14px;
            color: var(--warm);
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.8;
            margin: 0;
        }
        /* 卡片 */
        .card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,62,108,0.4);
            box-shadow: var(--shadow-hover);
        }
        /* 痛点卡片 */
        .pain-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            position: relative;
            transition: all 0.3s ease;
        }
        .pain-card:hover {
            border-color: rgba(255,62,108,0.35);
            transform: translateY(-2px);
        }
        .pain-num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 13px;
            color: var(--signal);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            display: block;
        }
        .pain-title {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--warm);
        }
        .pain-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 14px;
        }
        .pain-wave {
            display: flex;
            gap: 2px;
            height: 12px;
            opacity: 0.5;
        }
        .pain-wave span {
            display: inline-block;
            width: 2px;
            border-radius: 2px;
            background: var(--signal);
        }
        .pain-wave span:nth-child(1) { height: 5px; }
        .pain-wave span:nth-child(2) { height: 10px; background: var(--amber); }
        .pain-wave span:nth-child(3) { height: 7px; }
        .pain-wave span:nth-child(4) { height: 12px; }
        .pain-wave span:nth-child(5) { height: 6px; }
        .pain-wave span:nth-child(6) { height: 9px; background: var(--amber); }
        /* 对比区 */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: stretch;
        }
        .compare-panel {
            padding: 32px 28px;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
        }
        .compare-panel.negative {
            background: rgba(255,62,108,0.06);
            border-color: rgba(255,62,108,0.2);
        }
        .compare-panel.positive {
            background: rgba(76,215,169,0.06);
            border-color: rgba(76,215,169,0.2);
        }
        .compare-label {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 12px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-panel.negative .compare-label { color: var(--signal); }
        .compare-panel.positive .compare-label { color: var(--green); }
        .compare-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .compare-list li {
            padding: 10px 0;
            font-size: 14px;
            color: var(--muted);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
        }
        .compare-list li:last-child { border-bottom: none; }
        .compare-list li .dot {
            flex-shrink: 0;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            margin-top: 7px;
        }
        .compare-panel.negative .dot { background: var(--signal); }
        .compare-panel.positive .dot { background: var(--green); }
        /* 步骤 */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .step-item {
            text-align: center;
            padding: 28px 18px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            position: relative;
            transition: all 0.3s ease;
        }
        .step-item:hover {
            border-color: rgba(255,62,108,0.3);
            transform: translateY(-3px);
        }
        .step-badge {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,62,108,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 13px;
            color: var(--signal);
            font-weight: 700;
            margin: 0 auto 16px;
            border: 1px solid rgba(255,62,108,0.25);
        }
        .step-title {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--warm);
        }
        .step-text {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin: 0;
        }
        /* 数据大卡 */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.3s ease;
        }
        .stat-card:hover {
            border-color: rgba(255,179,66,0.3);
            box-shadow: 0 16px 40px -16px rgba(255,179,66,0.15);
        }
        .stat-num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 36px;
            font-weight: 700;
            color: var(--amber);
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--muted);
            letter-spacing: 0.04em;
        }
        /* 用户证言 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            padding: 28px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.3s ease;
        }
        .testimonial-card:hover {
            border-color: rgba(255,62,108,0.3);
        }
        .testimonial-head {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 14px;
        }
        .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255,62,108,0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--signal);
            border: 1px solid rgba(255,62,108,0.3);
            flex-shrink: 0;
        }
        .avatar-info .name {
            font-size: 15px;
            font-weight: 700;
            color: var(--warm);
        }
        .avatar-info .meta {
            font-size: 12px;
            color: var(--muted);
        }
        .testimonial-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 14px;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: rgba(76,215,169,0.1);
            border: 1px solid rgba(76,215,169,0.25);
            border-radius: 999px;
            font-size: 12px;
            color: var(--green);
        }
        .status-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--green);
        }
        /* 适用人群 */
        .audience-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }
        .audience-tag {
            padding: 8px 18px;
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--muted);
            cursor: default;
            transition: all 0.25s ease;
        }
        .audience-tag:hover {
            border-color: var(--amber);
            color: var(--amber);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }
        .scene-card {
            padding: 24px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            text-align: center;
            transition: all 0.3s ease;
        }
        .scene-card:hover {
            border-color: rgba(255,62,108,0.3);
            transform: translateY(-2px);
        }
        .scene-icon {
            font-size: 28px;
            margin-bottom: 12px;
        }
        .scene-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 6px;
        }
        .scene-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin: 0;
        }
        /* 专题卡 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            aspect-ratio: 3/4;
            border: 1px solid var(--border);
            transition: all 0.35s ease;
        }
        .topic-card:hover {
            border-color: rgba(255,62,108,0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .topic-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14,12,18,0.15) 0%, rgba(14,12,18,0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }
        .topic-card .topic-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 6px;
        }
        .topic-card .topic-count {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 12px;
            color: var(--amber);
        }
        /* 资讯卡片 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .news-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.35s ease;
        }
        .news-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,62,108,0.4);
            box-shadow: var(--shadow-hover);
        }
        .news-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-card-img img { transform: scale(1.04); }
        .news-card-body {
            padding: 20px 22px;
        }
        .news-badge-row {
            display: flex;
            gap: 8px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }
        .news-badge {
            padding: 3px 10px;
            background: rgba(255,62,108,0.12);
            border: 1px solid rgba(255,62,108,0.25);
            border-radius: 999px;
            font-size: 11px;
            color: var(--signal);
        }
        .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-summary {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.6;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 11px;
            color: #6b6373;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--card);
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
        }
        .news-empty .wave-bar { justify-content: center; margin-bottom: 14px; }
        .news-empty p {
            color: var(--muted);
            font-size: 14px;
            margin: 0;
        }
        /* 榜单 */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 14px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            transition: all 0.3s ease;
        }
        .rank-item:hover {
            border-color: rgba(255,62,108,0.35);
            transform: translateX(4px);
        }
        .rank-num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 22px;
            font-weight: 700;
            color: var(--signal);
            min-width: 44px;
            text-align: center;
        }
        .rank-info { flex: 1; }
        .rank-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 4px;
        }
        .rank-desc {
            font-size: 12px;
            color: var(--muted);
            margin: 0;
        }
        .rank-tag {
            padding: 4px 12px;
            background: rgba(255,179,66,0.1);
            border: 1px solid rgba(255,179,66,0.25);
            border-radius: 999px;
            font-size: 11px;
            color: var(--amber);
            white-space: nowrap;
        }
        /* 技术指标 */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tech-item {
            padding: 22px 24px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
        }
        .tech-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .tech-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--warm);
        }
        .tech-val {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 14px;
            color: var(--amber);
        }
        .tech-bar {
            height: 6px;
            background: rgba(255,255,255,0.06);
            border-radius: 3px;
            overflow: hidden;
        }
        .tech-bar-fill {
            height: 100%;
            border-radius: 3px;
            transition: width 0.6s ease;
        }
        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--card);
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(255,62,108,0.3);
        }
        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 15px;
            font-weight: 700;
            color: var(--warm);
            transition: color 0.25s ease;
        }
        .faq-question:hover { color: var(--signal); }
        .faq-num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 13px;
            color: var(--signal);
            flex-shrink: 0;
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }
        .faq-item.open {
            border-color: rgba(255,62,108,0.4);
            border-left: 2px solid var(--signal);
        }
        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud a {
            padding: 8px 18px;
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--muted);
            transition: all 0.25s ease;
        }
        .tag-cloud a:hover {
            border-color: var(--signal);
            color: var(--signal);
            background: rgba(255,62,108,0.08);
        }
        /* CTA区域 */
        .cta-panel {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            padding: 64px 40px;
            background: url('/assets/images/29bee0e4e5c553ec.jpg') center/cover no-repeat;
            text-align: center;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14,12,18,0.82);
        }
        .cta-panel > * {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            color: var(--warm);
            margin: 0 0 14px;
        }
        .cta-desc {
            font-size: 15px;
            color: var(--muted);
            max-width: 480px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 460px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            background: rgba(30,25,37,0.9);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--warm);
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s ease;
        }
        .cta-form input:focus {
            border-color: var(--amber);
        }
        /* 更新日志 */
        .changelog-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 720px;
        }
        .changelog-item {
            display: flex;
            gap: 18px;
            padding: 18px 22px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            transition: all 0.25s ease;
        }
        .changelog-item:hover {
            border-color: rgba(255,62,108,0.3);
        }
        .changelog-date {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 12px;
            color: var(--amber);
            white-space: nowrap;
            padding-top: 3px;
        }
        .changelog-content {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }
        .changelog-content strong {
            color: var(--warm);
            font-weight: 600;
        }
        /* 页脚 */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand-name {
            font-size: 17px;
            font-weight: 800;
            color: var(--warm);
            margin: 0 0 12px;
            letter-spacing: 0.01em;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0 0 16px;
            max-width: 300px;
        }
        .footer-brand .logo-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 14px;
            margin-bottom: 10px;
        }
        .footer-brand .logo-wave span {
            display: inline-block;
            width: 2px;
            border-radius: 2px;
            background: var(--signal);
        }
        .footer-brand .logo-wave span:nth-child(1) { height: 6px; }
        .footer-brand .logo-wave span:nth-child(2) { height: 12px; background: var(--amber); }
        .footer-brand .logo-wave span:nth-child(3) { height: 14px; }
        .footer-brand .logo-wave span:nth-child(4) { height: 9px; background: var(--amber); }
        .footer-brand .logo-wave span:nth-child(5) { height: 5px; }
        .footer-col-title {
            font-size: 13px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 14px;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--muted);
            transition: color 0.2s ease;
        }
        .footer-col ul a:hover { color: var(--signal); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: #6b6373;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .hero-container { grid-template-columns: 1fr; gap: 36px; }
            .hero-section { min-height: auto; padding: 64px 0 56px; }
            .signal-card { max-width: 480px; }
            .steps-row { grid-template-columns: repeat(2, 1fr); }
            .stat-grid { grid-template-columns: repeat(2, 1fr); }
            .topic-grid { grid-template-columns: repeat(2, 1fr); }
            .news-grid { grid-template-columns: repeat(2, 1fr); }
            .scene-grid { grid-template-columns: repeat(2, 1fr); }
            .tech-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .section { padding: 64px 0; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-left, .nav-right {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--panel);
                padding: 20px 24px;
                flex-direction: column;
                gap: 16px;
                border-bottom: 1px solid var(--border);
                z-index: 9;
            }
            .nav-left.open, .nav-right.open { display: flex; }
            .nav-logo {
                position: static;
                transform: none;
            }
            .nav-inner { justify-content: space-between; }
            .nav-inner .nav-toggle { order: 1; }
            .nav-inner .nav-logo { order: 2; }
            .nav-inner .nav-right { order: 3; }
            .compare-grid { grid-template-columns: 1fr; }
            .steps-row { grid-template-columns: 1fr 1fr; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .stat-grid { grid-template-columns: repeat(2, 1fr); }
            .topic-grid { grid-template-columns: 1fr 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .scene-grid { grid-template-columns: 1fr 1fr; }
            .tech-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .section { padding: 56px 0; }
            .section-title { font-size: 24px; }
            .hero-title { font-size: 28px; }
            .cta-panel { padding: 40px 20px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .steps-row { grid-template-columns: 1fr; }
            .stat-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
            .topic-grid { grid-template-columns: 1fr; }
            .scene-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .hero-form { flex-direction: column; }
            .cta-form { flex-direction: column; }
            .compare-grid { gap: 16px; }
            .rank-item { flex-wrap: wrap; gap: 10px; }
        }

/* roulang page: article */
:root {
            --bg: #0E0C12;
            --panel: #17141D;
            --card: #1E1925;
            --signal: #FF3E6C;
            --amber: #FFB342;
            --warm: #F5F1E8;
            --muted: #A79FAD;
            --green: #4CD7A9;
            --border: rgba(255,255,255,0.08);
            --radius-card: 18px;
            --radius-btn: 999px;
            --shadow-card: 0 20px 45px -20px rgba(0,0,0,0.65);
            --shadow-hover: 0 20px 50px -16px rgba(255,62,108,0.28);
            --font-sans: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            --font-mono: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--bg);
            color: var(--warm);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--signal);
        }
        img {
            display: block;
            max-width: 100%;
        }
        button, input, textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(14,12,18,0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 15px;
            color: var(--warm);
            white-space: nowrap;
            z-index: 5;
            letter-spacing: 0.02em;
            transition: color 0.25s ease;
        }
        .nav-logo:hover {
            color: var(--warm);
        }
        .nav-logo .logo-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 18px;
        }
        .nav-logo .logo-wave span {
            display: inline-block;
            width: 2.5px;
            border-radius: 2px;
            background: var(--signal);
        }
        .nav-logo .logo-wave span:nth-child(1) { height: 8px; }
        .nav-logo .logo-wave span:nth-child(2) { height: 14px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(3) { height: 18px; }
        .nav-logo .logo-wave span:nth-child(4) { height: 11px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(5) { height: 7px; }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 26px;
        }
        .nav-left { flex: 1; }
        .nav-right { flex: 1; justify-content: flex-end; }
        .nav-left a, .nav-right a {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            letter-spacing: 0.01em;
            transition: color 0.25s ease;
        }
        .nav-left a:hover, .nav-right a:hover,
        .nav-left a.active, .nav-right a.active {
            color: var(--signal);
        }
        .nav-left a.active::after, .nav-right a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--signal), transparent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 10;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--warm);
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .nav-toggle.open span:nth-child(2) { opacity: 0; }
        .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* 移动端导航抽屉 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(14,12,18,0.95);
            z-index: 99;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
        }
        .mobile-nav a {
            font-size: 20px;
            color: var(--warm);
            font-weight: 600;
            padding: 6px 12px;
            transition: color 0.25s ease;
        }
        .mobile-nav a:hover {
            color: var(--signal);
        }
        .mobile-nav.open {
            display: flex;
        }

        /* ===== 文章面包屑 ===== */
        .breadcrumb-section {
            padding: 40px 0 16px;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            flex-wrap: wrap;
            letter-spacing: 0.02em;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color 0.25s ease;
        }
        .breadcrumb a:hover {
            color: var(--signal);
        }
        .breadcrumb .sep {
            color: rgba(255,255,255,0.2);
        }
        .breadcrumb .current {
            color: var(--signal);
            font-weight: 500;
        }

        /* ===== 文章主区域 ===== */
        .article-main {
            padding: 40px 0 64px;
        }
        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            max-width: 760px;
        }
        .article-title {
            font-size: clamp(26px, 3.4vw, 38px);
            font-weight: 800;
            line-height: 1.3;
            color: var(--warm);
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--muted);
            font-family: var(--font-mono);
            letter-spacing: 0.03em;
        }
        .article-meta-item .meta-icon {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--signal);
            display: inline-block;
        }
        .article-category-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(255,62,108,0.12);
            color: var(--signal);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid rgba(255,62,108,0.25);
        }
        .article-cover {
            margin-bottom: 32px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .article-cover img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        /* 正文排版 */
        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--warm);
        }
        .article-content p {
            margin-bottom: 24px;
            color: #D9D2C5;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 3px solid var(--signal);
            color: var(--warm);
            line-height: 1.4;
            letter-spacing: 0.01em;
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 30px 0 12px;
            color: var(--warm);
            line-height: 1.45;
        }
        .article-content ul, .article-content ol {
            margin: 0 0 24px 20px;
            padding-left: 16px;
        }
        .article-content li {
            margin-bottom: 10px;
            color: #D9D2C5;
        }
        .article-content ul li::marker {
            color: var(--signal);
        }
        .article-content ol li::marker {
            color: var(--amber);
            font-family: var(--font-mono);
        }
        .article-content blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--card);
            border-left: 3px solid var(--amber);
            border-radius: 0 12px 12px 0;
            color: var(--muted);
            font-style: italic;
            font-size: 15px;
        }
        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
        }
        .article-content strong {
            color: var(--warm);
            font-weight: 700;
        }

        /* 侧边栏 */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--warm);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .sidebar-card .side-cta-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .sidebar-card .side-form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .sidebar-card .side-form input {
            padding: 12px 18px;
            background: rgba(14,12,18,0.7);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--warm);
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s ease;
        }
        .sidebar-card .side-form input:focus {
            border-color: var(--signal);
        }
        .sidebar-card .side-form input::placeholder {
            color: #6B6375;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 48px 0;
            border-top: 1px solid var(--border);
        }
        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--warm);
            margin-bottom: 24px;
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title .title-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 16px;
        }
        .section-title .title-wave span {
            display: inline-block;
            width: 2px;
            border-radius: 1px;
            background: var(--signal);
        }
        .section-title .title-wave span:nth-child(1) { height: 7px; }
        .section-title .title-wave span:nth-child(2) { height: 13px; background: var(--amber); }
        .section-title .title-wave span:nth-child(3) { height: 16px; }
        .section-title .title-wave span:nth-child(4) { height: 10px; background: var(--amber); }
        .section-title .title-wave span:nth-child(5) { height: 6px; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,62,108,0.4);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--panel);
        }
        .related-card-body {
            padding: 14px 16px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--warm);
            line-height: 1.45;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-desc {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .related-card-time {
            font-size: 12px;
            color: var(--muted);
            font-family: var(--font-mono);
            margin-top: 10px;
            letter-spacing: 0.02em;
        }

        /* ===== 上下篇导航 ===== */
        .post-nav-section {
            padding: 32px 0;
            border-top: 1px solid var(--border);
        }
        .post-nav-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
            align-items: stretch;
        }
        .post-nav-card {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px 20px;
            transition: border-color 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 80px;
        }
        .post-nav-card:hover {
            border-color: rgba(255,62,108,0.35);
            transform: translateY(-2px);
        }
        .post-nav-label {
            font-size: 12px;
            color: var(--muted);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .post-nav-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--warm);
            line-height: 1.4;
        }
        .post-nav-link:hover {
            color: var(--signal);
        }
        .post-nav-center {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .back-home-btn {
            display: inline-block;
            padding: 10px 24px;
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
        }
        .back-home-btn:hover {
            border-color: var(--signal);
            color: var(--signal);
            background: rgba(255,62,108,0.08);
        }

        /* ===== 订阅 CTA ===== */
        .cta-subscribe {
            padding: 48px 0 24px;
        }
        .cta-panel {
            background: var(--card);
            border: 1px solid rgba(255,62,108,0.2);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            justify-content: space-between;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(255,62,108,0.06) 0%, transparent 55%);
            pointer-events: none;
        }
        .cta-panel-text {
            flex: 1;
            min-width: 260px;
            position: relative;
            z-index: 1;
        }
        .cta-panel-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--warm);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }
        .cta-panel-text p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }
        .cta-panel-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-panel-form input {
            padding: 13px 20px;
            background: rgba(14,12,18,0.8);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--warm);
            font-size: 14px;
            min-width: 220px;
            outline: none;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .cta-panel-form input:focus {
            border-color: var(--signal);
            box-shadow: 0 0 0 2px rgba(255,62,108,0.12);
        }
        .cta-panel-form input::placeholder {
            color: #6B6375;
        }

        /* ===== 底部标签 ===== */
        .tag-section {
            padding: 32px 0 48px;
            border-top: 1px solid var(--border);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-block;
            padding: 8px 18px;
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: all 0.3s ease;
            background: var(--panel);
        }
        .tag-pill:hover {
            border-color: var(--signal);
            color: var(--signal);
            background: rgba(255,62,108,0.07);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-block;
            padding: 13px 28px;
            background: var(--signal);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--signal), var(--amber));
            color: #fff;
            box-shadow: 0 8px 24px -6px rgba(255,62,108,0.4);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-block;
            padding: 12px 26px;
            background: transparent;
            color: var(--warm);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: var(--signal);
            color: var(--signal);
            background: rgba(255,62,108,0.06);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* ===== 空状态 ===== */
        .article-empty-section {
            padding: 120px 0;
            text-align: center;
        }
        .article-empty-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 50%;
        }
        .article-empty-icon span {
            display: inline-block;
            width: 3px;
            border-radius: 2px;
            background: var(--muted);
        }
        .article-empty-icon span:nth-child(1) { height: 16px; }
        .article-empty-icon span:nth-child(2) { height: 26px; }
        .article-empty-icon span:nth-child(3) { height: 20px; }
        .article-empty-icon span:nth-child(4) { height: 12px; }
        .article-empty-section h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--warm);
            margin-bottom: 10px;
        }
        .article-empty-section p {
            font-size: 15px;
            color: var(--muted);
            margin-bottom: 24px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-brand-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--warm);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-top: 8px;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--warm);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--muted);
            transition: color 0.25s ease;
        }
        .footer-col ul li a:hover {
            color: var(--signal);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
            padding-top: 20px;
            border-top: 1px solid var(--border);
            letter-spacing: 0.02em;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right {
                display: none;
            }
            .nav-toggle {
                display: block;
                order: -1;
            }
            .nav-logo {
                position: static;
                transform: none;
                left: auto;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .post-nav-grid {
                grid-template-columns: 1fr;
            }
            .article-main {
                padding: 24px 0 48px;
            }
            .article-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                padding: 28px 24px;
            }
            .cta-panel-form input {
                min-width: 100%;
            }
            .site-header {
                height: 60px;
            }
            .nav-inner {
                height: 60px;
            }
            .nav-logo {
                font-size: 13px;
            }
            .breadcrumb-section {
                padding: 24px 0 12px;
            }
            .article-content {
                font-size: 15px;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0E0C12;
            --panel: #17141D;
            --card: #1E1925;
            --signal: #FF3E6C;
            --amber: #FFB342;
            --warm: #F5F1E8;
            --muted: #A79FAD;
            --green: #4CD7A9;
            --border: rgba(255,255,255,0.08);
            --radius-card: 18px;
            --radius-btn: 999px;
            --shadow-card: 0 20px 45px -20px rgba(0,0,0,0.65);
            --shadow-hover: 0 20px 50px -16px rgba(255,62,108,0.28);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--bg);
            color: var(--warm);
            font-family: 'HarmonyOS Sans SC', 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--signal);
        }
        img {
            display: block;
            max-width: 100%;
        }
        button, input, textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(14,12,18,0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            position: relative;
        }
        .nav-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 16px;
            color: var(--warm);
            white-space: nowrap;
            z-index: 5;
            letter-spacing: 0.02em;
        }
        .nav-logo .logo-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 18px;
        }
        .nav-logo .logo-wave span {
            display: inline-block;
            width: 2.5px;
            border-radius: 2px;
            background: var(--signal);
        }
        .nav-logo .logo-wave span:nth-child(1) { height: 8px; }
        .nav-logo .logo-wave span:nth-child(2) { height: 14px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(3) { height: 18px; }
        .nav-logo .logo-wave span:nth-child(4) { height: 11px; background: var(--amber); }
        .nav-logo .logo-wave span:nth-child(5) { height: 7px; }
        .nav-left, .nav-right {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-left { flex: 1; }
        .nav-right { flex: 1; justify-content: flex-end; }
        .nav-left a, .nav-right a {
            font-size: 14px;
            color: var(--muted);
            font-weight: 500;
            position: relative;
            padding: 4px 0;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-left a:hover, .nav-right a:hover,
        .nav-left a.active, .nav-right a.active {
            color: var(--signal);
        }
        .nav-left a.active::after, .nav-right a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--signal), transparent);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            z-index: 10;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--warm);
            margin: 5px 0;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(23,20,29,0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            padding: 24px;
            z-index: 99;
            flex-direction: column;
            gap: 16px;
        }
        .mobile-menu a {
            font-size: 16px;
            color: var(--muted);
            font-weight: 500;
            padding: 8px 0;
            border-bottom: 1px solid var(--border);
        }
        .mobile-menu a.active {
            color: var(--signal);
        }
        .mobile-menu.open {
            display: flex;
        }
        /* 分类头部 */
        .cat-hero {
            position: relative;
            padding: 72px 0 56px;
            background: url('/assets/images/3e1db7a0cfdaea92.webp') center/cover no-repeat;
            background-position: center 25%;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14,12,18,0.82);
            z-index: 1;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 25% 50%, rgba(255,62,108,0.06) 0%, transparent 50%),
                        radial-gradient(ellipse at 70% 30%, rgba(255,179,66,0.04) 0%, transparent 40%);
            z-index: 1;
            pointer-events: none;
        }
        .cat-hero-container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color 0.25s ease;
        }
        .breadcrumb a:hover {
            color: var(--signal);
        }
        .breadcrumb .sep {
            color: rgba(255,255,255,0.25);
        }
        .breadcrumb .current {
            color: var(--amber);
            font-weight: 500;
        }
        .cat-h1 {
            font-size: clamp(28px, 3.8vw, 40px);
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 12px;
            color: var(--warm);
            letter-spacing: 0.01em;
        }
        .cat-h1 .sub-hl {
            color: var(--signal);
        }
        .cat-lead {
            font-size: 16px;
            color: var(--muted);
            max-width: 600px;
            margin: 0;
            line-height: 1.8;
        }
        /* 板块通用 */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--panel);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: clamp(24px, 2.6vw, 32px);
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--warm);
            letter-spacing: 0.01em;
        }
        .section-desc {
            font-size: 15px;
            color: var(--muted);
            max-width: 600px;
            margin: 0 0 36px;
            line-height: 1.8;
        }
        .section-title-row {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }
        .wave-bars {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 12px;
            margin-bottom: 8px;
        }
        .wave-bars span {
            display: inline-block;
            width: 3px;
            border-radius: 2px;
            background: var(--signal);
            opacity: 0.7;
        }
        .wave-bars span:nth-child(1) { height: 5px; }
        .wave-bars span:nth-child(2) { height: 9px; background: var(--amber); }
        .wave-bars span:nth-child(3) { height: 12px; }
        .wave-bars span:nth-child(4) { height: 7px; background: var(--amber); }
        .wave-bars span:nth-child(5) { height: 4px; }
        /* 筛选工具条 */
        .filter-bar {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
        }
        .filter-chip {
            padding: 8px 18px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            color: var(--muted);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-chip:hover {
            border-color: var(--signal);
            color: var(--warm);
        }
        .filter-chip.active {
            border-color: var(--amber);
            color: var(--amber);
            background: rgba(255,179,66,0.08);
        }
        .filter-chip:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 2px;
        }
        /* 卡片网格 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
        }
        .content-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255,62,108,0.4);
            box-shadow: var(--shadow-hover);
        }
        .content-card .card-cover {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--panel);
        }
        .content-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .content-card .card-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            font-size: 11px;
            font-weight: 600;
            border-radius: 999px;
            letter-spacing: 0.03em;
            background: rgba(255,62,108,0.12);
            color: var(--signal);
            border: 1px solid rgba(255,62,108,0.25);
        }
        .badge-tag.amber {
            background: rgba(255,179,66,0.1);
            color: var(--amber);
            border-color: rgba(255,179,66,0.25);
        }
        .badge-tag.green {
            background: rgba(76,215,169,0.1);
            color: var(--green);
            border-color: rgba(76,215,169,0.25);
        }
        .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--warm);
            line-height: 1.45;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-summary {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--muted);
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            padding-top: 8px;
            border-top: 1px solid var(--border);
        }
        .card-meta .cat-label {
            color: var(--amber);
            font-weight: 500;
        }
        /* 查看更多按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: var(--signal);
            border: none;
            border-radius: var(--radius-btn);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.35s ease;
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #FF3E6C, #FFB342);
            color: #fff;
            box-shadow: 0 12px 28px -8px rgba(255,62,108,0.45);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(255,179,66,0.7);
            outline-offset: 3px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--radius-btn);
            color: var(--warm);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.01em;
        }
        .btn-outline:hover {
            border-color: var(--signal);
            color: var(--signal);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        /* 热门标签 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 10px 22px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            color: var(--muted);
            font-size: 13px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .tag-pill:hover {
            border-color: var(--signal);
            color: var(--warm);
            background: rgba(255,62,108,0.08);
        }
        /* 更新动态列表 */
        .update-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .update-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.3s ease;
            flex-wrap: wrap;
        }
        .update-item:hover {
            border-color: rgba(255,62,108,0.35);
            box-shadow: var(--shadow-hover);
        }
        .update-item .update-time {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 12px;
            color: var(--amber);
            min-width: 90px;
        }
        .update-item .update-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--warm);
            flex: 1;
        }
        .update-item .update-cat {
            font-size: 12px;
            color: var(--signal);
            font-weight: 500;
        }
        /* 数据保障条 */
        .mini-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .mini-stat-card {
            text-align: center;
            padding: 24px 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            transition: all 0.3s ease;
        }
        .mini-stat-card:hover {
            border-color: rgba(255,62,108,0.3);
        }
        .mini-stat-icon {
            font-size: 28px;
            margin-bottom: 8px;
            display: block;
        }
        .mini-stat-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--warm);
            margin: 0 0 4px;
        }
        .mini-stat-desc {
            font-size: 12px;
            color: var(--muted);
            margin: 0;
            line-height: 1.6;
        }
        /* FAQ 手风琴 */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item[open] {
            border-color: rgba(255,62,108,0.4);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--warm);
            list-style: none;
            transition: color 0.3s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--signal);
        }
        .faq-item summary .faq-num {
            font-family: 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;
            font-size: 13px;
            color: var(--amber);
            min-width: 28px;
        }
        .faq-item summary .faq-toggle {
            margin-left: auto;
            font-size: 18px;
            color: var(--muted);
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary .faq-toggle {
            transform: rotate(45deg);
            color: var(--signal);
        }
        .faq-answer {
            padding: 0 22px 20px 64px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }
        /* 空状态 */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            color: var(--muted);
            font-size: 15px;
        }
        .empty-state .empty-wave {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 3px;
            margin-bottom: 16px;
        }
        .empty-state .empty-wave span {
            display: inline-block;
            width: 4px;
            border-radius: 2px;
            background: var(--signal);
            opacity: 0.5;
        }
        .empty-state .empty-wave span:nth-child(1) { height: 8px; }
        .empty-state .empty-wave span:nth-child(2) { height: 16px; background: var(--amber); }
        .empty-state .empty-wave span:nth-child(3) { height: 12px; }
        .empty-state .empty-wave span:nth-child(4) { height: 18px; background: var(--amber); }
        .empty-state .empty-wave span:nth-child(5) { height: 6px; }
        /* 页脚 */
        .site-footer {
            background: var(--panel);
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 0.8fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 10px;
            letter-spacing: 0.01em;
        }
        .footer-brand-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin: 0;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: var(--warm);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--muted);
            transition: color 0.25s ease;
        }
        .footer-col ul li a:hover {
            color: var(--signal);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--muted);
        }
        .footer-brand .logo-wave {
            display: flex;
            align-items: center;
            gap: 2px;
            height: 14px;
            margin-bottom: 12px;
        }
        .footer-brand .logo-wave span {
            display: inline-block;
            width: 2.5px;
            border-radius: 2px;
            background: var(--signal);
        }
        .footer-brand .logo-wave span:nth-child(1) { height: 6px; }
        .footer-brand .logo-wave span:nth-child(2) { height: 11px; background: var(--amber); }
        .footer-brand .logo-wave span:nth-child(3) { height: 14px; }
        .footer-brand .logo-wave span:nth-child(4) { height: 9px; background: var(--amber); }
        .footer-brand .logo-wave span:nth-child(5) { height: 5px; }
        /* 进度条装饰 */
        .progress-line {
            height: 2px;
            border-radius: 2px;
            background: rgba(255,255,255,0.06);
            margin-top: 8px;
            overflow: hidden;
        }
        .progress-line .fill {
            height: 100%;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--signal), var(--amber));
            transition: width 0.6s ease;
        }
        /* 响应式 */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-left, .nav-right {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-logo {
                position: static;
                transform: none;
                font-size: 15px;
            }
            .nav-inner {
                justify-content: space-between;
                gap: 12px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .cat-hero {
                min-height: 300px;
                padding: 48px 0 40px;
            }
            .section {
                padding: 48px 0;
            }
            .mini-stats {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .update-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
            }
            .faq-answer {
                padding: 0 18px 16px 48px;
            }
            .section-title-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .cat-h1 {
                font-size: 26px;
            }
            .filter-bar {
                padding: 12px;
                gap: 8px;
            }
            .filter-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
        }