/* roulang page: index */
:root {
      --bg-main: #0B0C0E;
      --bg-surface: #141619;
      --bg-subtle: #1C1F24;
      --bg-card: #15181D;
      --text-primary: #F4F5F7;
      --text-secondary: #9DA3AE;
      --text-muted: #626875;
      --accent-core: #00E599;
      --accent-glow: rgba(0, 229, 153, 0.12);
      --accent-hover: #00c785;
      --border-subtle: 1px solid rgba(255, 255, 255, 0.08);
      --border-focus: 1px solid rgba(0, 229, 153, 0.4);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --font-stack: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-primary);
      font-family: var(--font-stack);
      -webkit-font-smoothing: antialiased;
    }

    body {
      background-color: var(--bg-main);
      color: var(--text-primary);
      line-height: 1.6;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 clamp(16px, 5vw, 40px);
    }

    /* 顶部提示条与主导航 */
    .top-notice-bar {
      background: #0f1115;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 13px;
      color: var(--text-secondary);
      padding: 8px 0;
    }
    .top-notice-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .notice-tag {
      background: rgba(0, 229, 153, 0.15);
      color: var(--accent-core);
      padding: 2px 8px;
      border-radius: 4px;
      margin-right: 8px;
      font-weight: 500;
    }
    .notice-links a {
      margin-left: 16px;
      color: var(--text-muted);
    }
    .notice-links a:hover {
      color: var(--accent-core);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(11, 12, 14, 0.85);
      backdrop-filter: blur(16px);
      border-bottom: var(--border-subtle);
    }
    .nav-container {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: -0.02em;
      color: var(--text-primary);
    }
    .logo-badge {
      display: inline-block;
      width: 12px;
      height: 12px;
      border-radius: 3px;
      background: var(--accent-core);
      box-shadow: 0 0 10px var(--accent-core);
    }
    .nav-menu {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-secondary);
      padding: 6px 0;
      position: relative;
    }
    .nav-menu a:hover, .nav-menu a.active {
      color: var(--text-primary);
    }
    .nav-menu a.active::after, .nav-menu a:hover::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-core);
    }
    .btn-nav {
      background: var(--accent-core);
      color: #050607;
      font-weight: 600;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      border: none;
      cursor: pointer;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .btn-nav:hover {
      background: var(--accent-hover);
      box-shadow: 0 0 16px var(--accent-glow);
    }
    .nav-toggle {
      display: none;
      background: transparent;
      border: none;
      color: var(--text-primary);
      font-size: 24px;
      cursor: pointer;
      width: 44px;
      height: 44px;
    }

    /* 板块通用布局 */
    .section-wrap {
      padding: clamp(70px, 7vw, 110px) 0;
      border-bottom: var(--border-subtle);
      position: relative;
    }
    .section-alt {
      background-color: var(--bg-surface);
    }
    .section-heading-box {
      margin-bottom: 52px;
    }
    .section-label {
      display: inline-block;
      font-size: 12px;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--accent-core);
      font-weight: 600;
      margin-bottom: 12px;
      padding: 4px 10px;
      background: var(--accent-glow);
      border-radius: var(--radius-sm);
      border: 1px solid rgba(0, 229, 153, 0.25);
    }
    .section-title {
      font-size: clamp(26px, 3.2vw, 40px);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.25;
      margin-bottom: 16px;
      color: var(--text-primary);
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-secondary);
      max-width: 820px;
      line-height: 1.7;
    }

    /* 1. 首屏Hero：秒杀闪购限时条 + 核心商品卡 + 抢购CTA */
    .hero-section {
      padding: 40px 0 80px;
      background: radial-gradient(circle at 80% 20%, rgba(0, 229, 153, 0.08) 0%, transparent 60%),
                  radial-gradient(circle at 10% 70%, rgba(28, 31, 36, 0.7) 0%, transparent 60%);
    }
    .flash-deal-banner {
      background: linear-gradient(90deg, #1b2820 0%, #151a1e 100%);
      border: 1px solid rgba(0, 229, 153, 0.3);
      border-radius: var(--radius-md);
      padding: 14px 24px;
      margin-bottom: 36px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .deal-info {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 14px;
    }
    .deal-badge {
      background: #ff4757;
      color: #fff;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
      font-size: 12px;
    }
    .deal-timer-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .timer-unit {
      background: #000;
      color: var(--accent-core);
      font-weight: 700;
      font-family: monospace;
      padding: 4px 8px;
      border-radius: 4px;
      font-size: 14px;
    }
    .hero-layout-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-text-block h1 {
      font-size: clamp(34px, 4.4vw, 56px);
      font-weight: 800;
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 22px;
    }
    .hero-lead-summary {
      font-size: 16px;
      line-height: 1.8;
      color: var(--text-secondary);
      margin-bottom: 32px;
    }
    .hero-action-row {
      display: flex;
      align-items: center;
      gap: 16px;
      margin-bottom: 30px;
    }
    .btn-primary-hero {
      background: var(--accent-core);
      color: #060809;
      padding: 15px 32px;
      border-radius: var(--radius-sm);
      font-size: 16px;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border: none;
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .btn-primary-hero:hover {
      background: var(--accent-hover);
      box-shadow: 0 10px 24px -6px rgba(0, 229, 153, 0.4);
      transform: translateY(-2px);
    }
    .btn-outline-hero {
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: var(--text-primary);
      padding: 15px 28px;
      border-radius: var(--radius-sm);
      font-size: 16px;
      font-weight: 600;
      background: rgba(255, 255, 255, 0.03);
    }
    .btn-outline-hero:hover {
      border-color: var(--text-primary);
      background: rgba(255, 255, 255, 0.08);
    }
    .hero-featured-card {
      background: var(--bg-surface);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 24px 48px -12px rgba(0,0,0,0.7);
      position: relative;
    }
    .card-cover-rel {
      position: relative;
      height: 240px;
      overflow: hidden;
    }
    .card-cover-rel img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .floating-param-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(0,0,0,0.75);
      border: 1px solid var(--accent-core);
      color: var(--accent-core);
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 4px;
      font-weight: 600;
    }
    .featured-card-body {
      padding: 24px;
    }
    .deal-price-row {
      display: flex;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 12px;
    }
    .now-price {
      font-size: 28px;
      font-weight: 800;
      color: var(--accent-core);
    }
    .old-price {
      font-size: 15px;
      color: var(--text-muted);
      text-decoration: line-through;
    }
    .spec-pill-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }
    .spec-pill {
      font-size: 12px;
      color: var(--text-secondary);
      background: var(--bg-subtle);
      padding: 4px 8px;
      border-radius: 4px;
      border: var(--border-subtle);
    }

    /* 2. 内容日历区 */
    .calendar-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .calendar-card {
      background: var(--bg-card);
      border: var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      border-top: 3px solid var(--text-muted);
      transition: all 0.25s ease;
    }
    .calendar-card:hover {
      border-top-color: var(--accent-core);
      transform: translateY(-4px);
    }
    .calendar-date {
      font-size: 13px;
      color: var(--accent-core);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .calendar-title {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .calendar-card p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 3. 热门专题区 */
    .topic-card-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .topic-item-card {
      background: var(--bg-surface);
      border: var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all 0.25s ease;
    }
    .topic-item-card:hover {
      border-color: rgba(0, 229, 153, 0.4);
      box-shadow: 0 16px 32px -8px rgba(0,0,0,0.5);
    }
    .topic-thumb {
      height: 180px;
      overflow: hidden;
    }
    .topic-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .topic-item-card:hover .topic-thumb img {
      transform: scale(1.05);
    }
    .topic-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .topic-meta-tag {
      font-size: 12px;
      color: var(--accent-core);
      margin-bottom: 8px;
      font-weight: 600;
    }
    .topic-title {
      font-size: 19px;
      font-weight: 700;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .topic-desc {
      font-size: 14px;
      color: var(--text-secondary);
      margin-bottom: 18px;
      line-height: 1.6;
    }
    .topic-link-action {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      font-weight: 600;
      color: var(--accent-core);
    }

    /* 4. 观点解读区 (非纯三列，双栏深度排版) */
    .insights-deep-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 36px;
      align-items: center;
    }
    .deep-quote-box {
      background: var(--bg-subtle);
      border-left: 4px solid var(--accent-core);
      padding: 32px;
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
    }
    .quote-content {
      font-size: 18px;
      line-height: 1.8;
      color: var(--text-primary);
      margin-bottom: 20px;
      font-style: normal;
    }
    .quote-author {
      font-size: 14px;
      color: var(--text-secondary);
      font-weight: 500;
    }
    .deep-point-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .point-card-row {
      background: var(--bg-card);
      border: var(--border-subtle);
      padding: 20px;
      border-radius: var(--radius-sm);
    }
    .point-card-row h4 {
      font-size: 16px;
      margin-bottom: 6px;
      color: var(--accent-core);
    }
    .point-card-row p {
      font-size: 14px;
      color: var(--text-secondary);
    }

    /* 5. 资讯列表区 (table-like与卡片结合) */
    .news-stack-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .news-row-item {
      background: var(--bg-surface);
      border: var(--border-subtle);
      border-radius: var(--radius-sm);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      transition: background 0.25s ease;
    }
    .news-row-item:hover {
      background: var(--bg-subtle);
      border-color: rgba(255,255,255,0.15);
    }
    .news-date-badge {
      font-size: 13px;
      color: var(--text-muted);
      min-width: 90px;
      font-family: monospace;
    }
    .news-title-text {
      flex-grow: 1;
      font-size: 16px;
      font-weight: 600;
    }
    .news-tag-category {
      font-size: 12px;
      background: var(--bg-main);
      padding: 4px 10px;
      border-radius: 4px;
      color: var(--text-secondary);
      border: var(--border-subtle);
    }

    /* 6. 媒体精选区 (横向滚动轨道) */
    .media-scroll-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .media-item-box {
      background: var(--bg-card);
      border: var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .media-img-box {
      height: 140px;
      position: relative;
    }
    .media-img-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .media-badge-overlay {
      position: absolute;
      bottom: 8px;
      right: 8px;
      background: rgba(0,0,0,0.8);
      font-size: 11px;
      padding: 2px 6px;
      border-radius: 3px;
    }
    .media-text-pad {
      padding: 16px;
    }
    .media-text-pad h4 {
      font-size: 15px;
      margin-bottom: 8px;
    }
    .media-text-pad p {
      font-size: 13px;
      color: var(--text-secondary);
      line-height: 1.5;
    }

    /* 7. 数据分析区 (指标与架构) */
    .metrics-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 40px;
    }
    .metric-data-card {
      background: var(--bg-surface);
      border: var(--border-subtle);
      padding: 28px 20px;
      border-radius: var(--radius-md);
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .metric-data-card::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: var(--accent-core);
    }
    .metric-num-big {
      font-size: 40px;
      font-weight: 800;
      font-family: monospace;
      color: var(--text-primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-num-big span {
      color: var(--accent-core);
      font-size: 24px;
    }
    .metric-title-sub {
      font-size: 14px;
      color: var(--text-secondary);
    }
    .tech-benchmark-box {
      background: var(--bg-card);
      border: var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .benchmark-row {
      display: grid;
      grid-template-columns: 200px 1fr auto;
      align-items: center;
      gap: 20px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    .benchmark-row:last-child {
      border-bottom: none;
    }
    .bench-name {
      font-size: 14px;
      font-weight: 600;
    }
    .bench-bar-outer {
      background: var(--bg-subtle);
      height: 10px;
      border-radius: 5px;
      overflow: hidden;
    }
    .bench-bar-inner {
      height: 100%;
      background: linear-gradient(90deg, #00b87a, var(--accent-core));
      border-radius: 5px;
    }
    .bench-val {
      font-family: monospace;
      font-size: 14px;
      color: var(--accent-core);
    }

    /* 8. 平台保障区 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .guarantee-item {
      background: var(--bg-card);
      border: var(--border-subtle);
      padding: 26px 20px;
      border-radius: var(--radius-md);
      border-left: 2px solid var(--accent-core);
    }
    .guarantee-item h4 {
      font-size: 17px;
      margin-bottom: 10px;
      color: var(--text-primary);
    }
    .guarantee-item p {
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* 9. 订阅条与收口区 */
    .subscribe-action-section {
      background: radial-gradient(circle at center, rgba(0, 229, 153, 0.08) 0%, transparent 70%), var(--bg-surface);
      padding: 80px 0;
      text-align: center;
    }
    .subscribe-card-inner {
      max-width: 680px;
      margin: 0 auto;
    }
    .subscribe-form {
      display: flex;
      gap: 12px;
      margin-top: 28px;
    }
    .subscribe-input {
      flex-grow: 1;
      background: var(--bg-main);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-sm);
      padding: 14px 20px;
      color: var(--text-primary);
      font-size: 15px;
      outline: none;
    }
    .subscribe-input:focus {
      border-color: var(--accent-core);
    }
    .subscribe-btn {
      background: var(--accent-core);
      color: #060809;
      border: none;
      padding: 14px 28px;
      font-weight: 700;
      font-size: 15px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      white-space: nowrap;
      transition: background 0.25s ease;
    }
    .subscribe-btn:hover {
      background: var(--accent-hover);
    }
    .form-tips-text {
      margin-top: 12px;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. 影视从业者评价墙 */
    .testimonials-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testi-card {
      background: var(--bg-surface);
      border: var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-comment {
      font-size: 14px;
      line-height: 1.7;
      color: var(--text-secondary);
      margin-bottom: 20px;
    }
    .testi-author-info {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .testi-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--bg-subtle);
      border: 1px solid var(--accent-core);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--accent-core);
      font-size: 14px;
    }
    .testi-meta-names h5 {
      font-size: 15px;
      color: var(--text-primary);
    }
    .testi-meta-names span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 11. 常见技术疑点与手风琴 */
    .faq-layout-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-detail-item {
      background: var(--bg-card);
      border: var(--border-subtle);
      border-radius: var(--radius-sm);
      overflow: hidden;
      transition: border-color 0.25s ease;
    }
    .faq-detail-item[open] {
      border-color: rgba(0, 229, 153, 0.4);
    }
    .faq-detail-item summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      list-style: none;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-detail-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-detail-item summary::after {
      content: '+';
      font-size: 20px;
      color: var(--accent-core);
    }
    .faq-detail-item[open] summary::after {
      content: '−';
    }
    .faq-body-content {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-secondary);
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      padding-top: 16px;
    }

    /* 页脚设计规范 */
    .site-footer {
      background: #07080a;
      border-top: var(--border-subtle);
      padding: 70px 0 30px;
      font-size: 14px;
      color: var(--text-secondary);
    }
    .footer-grid-layout {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      font-size: 16px;
      color: var(--text-primary);
      margin-bottom: 20px;
      font-weight: 600;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col ul a:hover {
      color: var(--accent-core);
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 28px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      font-size: 13px;
      color: var(--text-muted);
    }

    /* 移动端与响应式断点 */
    @media (max-width: 1024px) {
      .hero-layout-grid {
        grid-template-columns: 1fr;
      }
      .calendar-timeline, .guarantee-grid, .metrics-stats-grid, .media-scroll-track {
        grid-template-columns: repeat(2, 1fr);
      }
      .topic-card-grid, .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .insights-deep-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid-layout {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-menu {
        display: none;
      }
      .nav-toggle {
        display: block;
      }
      .top-notice-bar {
        display: none;
      }
      .topic-card-grid, .calendar-timeline, .guarantee-grid, .metrics-stats-grid, .testimonials-grid, .media-scroll-track {
        grid-template-columns: 1fr;
      }
      .news-row-item {
        flex-direction: column;
        align-items: flex-start;
      }
      .benchmark-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .subscribe-form {
        flex-direction: column;
      }
      .footer-grid-layout {
        grid-template-columns: 1fr;
      }
      .footer-bottom-bar {
        flex-direction: column;
        align-items: flex-start;
      }
      .mobile-menu-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #111317;
        padding: 24px;
        border-bottom: var(--border-focus);
      }
    }