/* roulang page: index */
:root {
            --primary: #d32f2f;
            --primary-dark: #9a0007;
            --primary-light: #ff6659;
            --accent: #212121;
            --accent-light: #424242;
            --bg-main: #0f1115;
            --bg-card: #181b22;
            --bg-card-alt: #222631;
            --bg-hero: #12151c;
            --text-main: #f0f2f5;
            --text-muted: #9ba1b0;
            --border: #2c3240;
            --border-highlight: #d32f2f55;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 4px rgba(0,0,0,0.4);
            --shadow-md: 0 6px 16px rgba(0,0,0,0.5);
            --shadow-lg: 0 12px 28px rgba(0,0,0,0.6);
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部通栏 */
        .site-header {
            background-color: #0b0d11;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: #fff;
        }

        .logo-badge {
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            padding: 2px 6px;
            border-radius: var(--radius-sm);
            text-transform: uppercase;
            font-weight: 900;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-link:hover, .nav-link.active {
            color: #fff;
            background-color: var(--bg-card-alt);
        }

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

        .header-action {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-live-pulse {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background-color: rgba(211, 47, 47, 0.15);
            color: #ff5252;
            border: 1px solid var(--primary);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background-color: #ff5252;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.7);
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 82, 82, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(255, 82, 82, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(255, 82, 82, 0); }
        }

        /* Hero 矮横幅 */
        .hero-banner {
            background: linear-gradient(180deg, #141820 0%, var(--bg-main) 100%);
            border-bottom: 1px solid var(--border);
            padding: 40px 0 35px;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 30px;
            align-items: center;
        }

        .hero-title-area h1 {
            font-size: 1.85rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .hero-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 780px;
            line-height: 1.6;
        }

        .hero-meta-stats {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            padding: 16px 24px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
        }

        .meta-stat-item {
            text-align: center;
        }

        .stat-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary-light);
            display: block;
        }

        .stat-label {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 通用 Section 结构 */
        .section-block {
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }

        .section-block.alt-bg {
            background-color: #12151b;
        }

        .section-header {
            margin-bottom: 28px;
        }

        .section-header.flex-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--primary-light);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 1.45rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-subtitle {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
            max-width: 820px;
        }

        /* 视频卡片网格 */
        .video-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .video-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .video-card {
            background-color: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .video-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-highlight);
            box-shadow: var(--shadow-md);
        }

        .card-thumb {
            position: relative;
            background: #252b38;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

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

        .thumb-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .play-btn-circle {
            width: 44px;
            height: 44px;
            background: rgba(211, 47, 47, 0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
        }

        .video-card:hover .play-btn-circle {
            background: #ff3d3d;
            transform: scale(1.1);
        }

        .duration-tag {
            position: absolute;
            bottom: 8px;
            right: 8px;
            background: rgba(0, 0, 0, 0.85);
            font-size: 0.75rem;
            padding: 2px 6px;
            border-radius: 2px;
            color: #ddd;
        }

        .rank-tag {
            position: absolute;
            top: 8px;
            left: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 6px;
            border-radius: 2px;
        }

        .card-body {
            padding: 16px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .card-title {
            font-size: 0.98rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-desc {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 12px;
            flex-grow: 1;
        }

        .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 10px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* 专题卡片与分栏 */
        .feature-box-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feature-box {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
        }

        .feature-box-icon {
            font-size: 1.6rem;
            color: var(--primary-light);
            margin-bottom: 14px;
        }

        .feature-box h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .feature-box p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 黑榜焦点大事记/时间轴 */
        .timeline-container {
            border-left: 2px solid var(--border);
            margin-left: 10px;
            padding-left: 24px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .timeline-item {
            position: relative;
        }

        .timeline-dot {
            position: absolute;
            left: -31px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 2px solid var(--bg-main);
        }

        .timeline-time {
            font-size: 0.8rem;
            color: var(--primary-light);
            font-weight: 700;
            margin-bottom: 4px;
        }

        .timeline-content h4 {
            font-size: 1rem;
            color: #fff;
            margin-bottom: 6px;
        }

        .timeline-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 数据比对矩阵列表 */
        .table-custom {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .table-custom th, .table-custom td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 0.88rem;
        }

        .table-custom th {
            background-color: var(--bg-card-alt);
            color: #fff;
            font-weight: 600;
        }

        .table-custom tr:last-child td {
            border-bottom: none;
        }

        .table-custom tr:hover td {
            background-color: rgba(255,255,255,0.02);
        }

        .status-badge-err {
            background: rgba(211, 47, 47, 0.2);
            color: #ff6b6b;
            padding: 3px 8px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* 资讯与图文横排 */
        .article-strip {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: var(--transition);
        }

        .article-strip:hover {
            border-color: var(--border-highlight);
        }

        .article-strip-img {
            width: 200px;
            height: 120px;
            border-radius: var(--radius-sm);
            background: #252b38;
            flex-shrink: 0;
            overflow: hidden;
        }

        .article-strip-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .article-strip-content h3 {
            font-size: 1.05rem;
            color: #fff;
            margin-bottom: 6px;
        }

        .article-strip-content p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        /* 收口行动区域 */
        .cta-action-box {
            background: linear-gradient(90deg, #1b1214 0%, #201518 100%);
            border: 1px solid var(--border-highlight);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            position: relative;
        }

        .cta-title {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 24px;
        }

        .btn-cta-main {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
        }

        .btn-cta-main:hover {
            background: #e53935;
        }

        /* 页脚 */
        .site-footer {
            background: #090a0d;
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .footer-brand p {
            line-height: 1.6;
            max-width: 480px;
        }

        .footer-links h5 {
            color: #fff;
            font-size: 0.9rem;
            margin-bottom: 14px;
            font-weight: 600;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .video-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .video-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-box-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-meta-stats {
                justify-content: space-around;
            }
            .video-grid-4, .video-grid-3, .feature-box-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .article-strip {
                flex-direction: column;
            }
            .article-strip-img {
                width: 100%;
                height: 160px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #d32f2f;
  --primary-dark: #9a0007;
  --primary-light: #ff6659;
  --accent: #212121;
  --accent-light: #424242;
  --bg-main: #0f1115;
  --bg-card: #181b22;
  --bg-card-alt: #222631;
  --bg-hero: #12151c;
  --text-main: #f0f2f5;
  --text-muted: #9ba1b0;
  --border: #2c3240;
  --border-highlight: #d32f2f55;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.4);
  --shadow-md: 0 6px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 28px rgba(0,0,0,0.6);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  background-color: #0b0d11;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
}
.logo-badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  font-weight: 900;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link:hover, .nav-link.active {
  color: #fff;
  background-color: var(--bg-card-alt);
}
.nav-link.active {
  color: var(--primary-light);
}
.header-action {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-live-pulse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(211, 47, 47, 0.15);
  color: #ff5252;
  border: 1px solid var(--primary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #ff5252;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px #ff5252;
}

/* 视频遮罩全宽 Hero */
.video-hero-wrapper {
  position: relative;
  background: radial-gradient(circle at center, #2a1012 0%, #111317 100%);
  border-bottom: 1px solid var(--border);
  padding: 70px 0 60px;
  overflow: hidden;
}
.video-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(15,17,21,0.6) 0%, rgba(15,17,21,0.95) 100%);
  z-index: 1;
}
.video-hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}
.video-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(211, 47, 47, 0.2);
  color: var(--primary-light);
  border: 1px solid var(--border-highlight);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.video-hero-content h1 {
  font-size: 2.3rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 18px;
}
.video-hero-content p {
  font-size: 1.05rem;
  color: #ccd2e0;
  line-height: 1.7;
  margin-bottom: 28px;
}
.hero-action-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(211, 47, 47, 0.4);
}
.btn-primary-action:hover {
  background: var(--primary-dark);
  color: #fff;
}
.btn-secondary-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
}
.btn-secondary-action:hover {
  background: var(--bg-card-alt);
  border-color: var(--text-muted);
}

/* 板块通用 */
.cat-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}
.cat-section.alt-bg {
  background-color: #13161c;
}
.section-head {
  margin-bottom: 32px;
}
.section-title {
  font-size: 1.55rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title i {
  color: var(--primary);
  font-size: 1.35rem;
}
.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 8px;
}

/* 核心专题网格 */
.feature-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}
.feature-box:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.fb-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(211, 47, 47, 0.12);
  color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}
.fb-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.fb-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}
.fb-metrics {
  background: var(--bg-card-alt);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #b0b6c4;
}

/* 视频列表展示 */
.video-stream-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stream-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.stream-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.stream-poster {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #1e222d;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.stream-poster .play-icon {
  font-size: 2rem;
  color: #fff;
  opacity: 0.85;
  transition: var(--transition);
}
.stream-card:hover .play-icon {
  transform: scale(1.15);
  color: var(--primary-light);
}
.stream-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.stream-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.stream-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.stream-tag {
  font-size: 0.75rem;
  color: var(--primary-light);
  font-weight: 700;
  margin-bottom: 6px;
}
.stream-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 8px;
}
.stream-meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 10px;
}

/* 沙盘推演与战术漏洞对比 */
.tactics-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
}
.tactics-content h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.tactics-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}
.tactics-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tactics-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: #dde1ea;
}
.tactics-points li i {
  color: var(--primary);
  margin-top: 4px;
}
.tactics-preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
}
.tp-item {
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.tp-item:last-child {
  border-bottom: none;
}
.tp-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
}
.tp-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}
.tp-val.highlight {
  color: #ff5252;
}

/* 判罚与争议审核体系 */
.criteria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.criteria-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}
.criteria-num {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary-light);
  margin-bottom: 8px;
}
.criteria-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.criteria-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* 战术反思指标数据 */
.stats-bar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 20px;
}
.stat-box {
  text-align: center;
  border-right: 1px solid var(--border);
}
.stat-box:last-child {
  border-right: none;
}
.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 6px;
}
.stat-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 页脚 */
.site-footer {
  background-color: #090a0d;
  border-top: 1px solid var(--border);
  padding: 50px 0 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.footer-links h5 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links li a {
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer-links li a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 响应式断点 */
@media (max-width: 1024px) {
  .video-stream-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .criteria-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .feature-grid-3 {
    grid-template-columns: 1fr;
  }
  .tactics-layout {
    grid-template-columns: 1fr;
  }
  .stats-bar-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .stat-box {
    border-right: none;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 10px;
  }
  .video-hero-content h1 {
    font-size: 1.7rem;
  }
}
@media (max-width: 520px) {
  .video-stream-grid {
    grid-template-columns: 1fr;
  }
  .criteria-grid {
    grid-template-columns: 1fr;
  }
  .header-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 0;
    gap: 12px;
  }
  .main-nav {
    gap: 12px;
  }
}