/* roulang page: index */
:root {
      --primary-grad: linear-gradient(135deg, #6366F1 0%, #3B82F6 100%);
      --primary-color: #6366F1;
      --primary-dark: #4F46E5;
      --accent-cyan: #06B6D4;
      --accent-orange: #F97316;
      --accent-orange-hover: #EA580C;
      --surface-light: #F8FAFC;
      --surface-white: #FFFFFF;
      --surface-dark: #0F172A;
      --surface-dark-card: #1E293B;
      --text-main: #0F172A;
      --text-muted: #475569;
      --text-light: #94A3B8;
      --border-color: rgba(226, 232, 240, 0.85);
      --border-dark: rgba(255, 255, 255, 0.1);
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 25px -5px rgba(99, 102, 241, 0.12);
      --shadow-hover: 0 20px 30px -10px rgba(99, 102, 241, 0.22);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-pill: 9999px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--surface-light);
      color: var(--text-main);
      line-height: 1.65;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
    img { max-width: 100%; height: auto; display: block; }
    ul { list-style: none; }

    /* 全局容器与版式微调 */
    .site-container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }
    .section-wrap {
      padding: 85px 0;
      position: relative;
    }
    .section-wrap-dark {
      background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
      color: #FFFFFF;
    }
    .section-wrap-light {
      background-color: #FFFFFF;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 52px;
    }
    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-wrap-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-wrap-dark .section-desc {
      color: var(--text-light);
    }

    /* 徽章 Badge */
    .pill-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 16px;
      font-size: 0.85rem;
      font-weight: 600;
      border-radius: var(--radius-pill);
      background: rgba(99, 102, 241, 0.1);
      color: var(--primary-color);
      margin-bottom: 14px;
      border: 1px solid rgba(99, 102, 241, 0.2);
    }
    .pill-badge-dark {
      background: rgba(6, 182, 212, 0.15);
      color: var(--accent-cyan);
      border-color: rgba(6, 182, 212, 0.3);
    }

    /* 按钮组件 */
    .btn-main {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      background: var(--accent-orange);
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1rem;
      padding: 13px 30px;
      border-radius: var(--radius-pill);
      box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
      border: none;
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .btn-main:hover {
      background: var(--accent-orange-hover);
      color: #FFFFFF;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(249, 115, 22, 0.45);
    }
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: #FFFFFF;
      color: var(--text-main);
      font-weight: 600;
      font-size: 1rem;
      padding: 13px 28px;
      border-radius: var(--radius-pill);
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }
    .btn-secondary:hover {
      border-color: var(--primary-color);
      color: var(--primary-color);
      background: rgba(99, 102, 241, 0.04);
      transform: translateY(-2px);
    }

    /* 卡片底座 */
    .game-card {
      background: var(--surface-white);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.35s ease;
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .game-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(99, 102, 241, 0.4);
    }
    .dark-card {
      background: var(--surface-dark-card);
      border: 1px solid var(--border-dark);
      color: #FFFFFF;
    }
    .dark-card:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 15px 30px rgba(6, 182, 212, 0.15);
    }

    /* 双层 Header 导航 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      border-bottom: 1px solid var(--border-color);
    }
    .nav-top-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: -0.3px;
    }
    .brand-logo .logo-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: var(--primary-grad);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-size: 1.2rem;
      box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
    }
    .header-quick-bar {
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .search-mockup {
      display: flex;
      align-items: center;
      gap: 8px;
      background: var(--surface-light);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-pill);
      padding: 7px 18px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }
    .nav-tabs-row {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 0;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .nav-tabs-row::-webkit-scrollbar { display: none; }
    .tab-pill {
      white-space: nowrap;
      padding: 7px 18px;
      border-radius: var(--radius-pill);
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
      background: transparent;
      transition: all 0.25s ease;
    }
    .tab-pill:hover, .tab-pill.active {
      background: rgba(99, 102, 241, 0.1);
      color: var(--primary-color);
    }

    /* 板块一：Hero 核心落地首屏 */
    .hero-section {
      padding: 60px 0 80px;
      background: linear-gradient(180deg, #F8FAFC 0%, #EEF2F6 100%);
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 40px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 2.85rem;
      font-weight: 900;
      line-height: 1.22;
      color: var(--text-main);
      margin-bottom: 20px;
      letter-spacing: -1px;
    }
    .hero-content h1 span {
      background: var(--primary-grad);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      margin-bottom: 28px;
    }
    .hero-support-badges {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 18px;
      font-size: 0.85rem;
      color: var(--text-muted);
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .hero-visual-card {
      position: relative;
      background: #000;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.35);
      border: 3px solid rgba(255, 255, 255, 0.8);
    }
    .hero-visual-card img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      opacity: 0.9;
    }
    .hero-visual-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, 0.85) 100%);
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding: 24px;
      color: #FFFFFF;
    }
    .hero-badge-float {
      position: absolute;
      top: 18px;
      right: 18px;
      background: rgba(15, 23, 42, 0.75);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #10B981;
      padding: 6px 14px;
      border-radius: var(--radius-pill);
      font-size: 0.82rem;
      font-weight: 600;
    }

    /* 板块二：硬核参数认证条 */
    .indicator-strip {
      background: #FFFFFF;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 24px 0;
    }
    .indicator-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .indicator-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .indicator-icon {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(99, 102, 241, 0.08);
      color: var(--primary-color);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      flex-shrink: 0;
    }
    .indicator-text strong {
      display: block;
      font-size: 0.96rem;
      color: var(--text-main);
    }
    .indicator-text span {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 板块三：核心卖点三连排 */
    .innovations-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .inn-card {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 34px 28px;
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .inn-card:hover {
      border-color: var(--primary-color);
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .inn-icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      background: var(--primary-grad);
      color: #FFFFFF;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      margin-bottom: 22px;
      box-shadow: 0 8px 16px rgba(99, 102, 241, 0.25);
    }

    /* 板块四：功能矩阵 6卡 */
    .feature-grid-6 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feat-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: all 0.3s ease;
    }
    .feat-box:hover {
      border-color: var(--primary-color);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .feat-icon-tag {
      display: inline-block;
      font-size: 1.4rem;
      color: var(--primary-color);
      margin-bottom: 14px;
    }

    /* 板块五：沉浸工作流演示 */
    .dark-workflow-grid {
      display: grid;
      grid-template-columns: 1fr 1.1fr;
      gap: 40px;
      align-items: center;
    }
    .dark-step-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }
    .dark-step-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 22px;
      transition: all 0.3s ease;
    }
    .dark-step-item:hover, .dark-step-item.active {
      background: rgba(99, 102, 241, 0.15);
      border-color: var(--accent-cyan);
    }
    .dark-step-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: #FFFFFF;
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 8px;
    }
    .step-number {
      background: var(--accent-cyan);
      color: var(--surface-dark);
      font-size: 0.8rem;
      font-weight: 800;
      padding: 2px 8px;
      border-radius: var(--radius-pill);
    }
    .workflow-img-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }
    .workflow-img-box img {
      width: 100%;
      height: 380px;
      object-fit: cover;
    }

    /* 板块六：用户画像与故事（社会认同） */
    .story-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .creator-meta {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .creator-avatar {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #E2E8F0;
      overflow: hidden;
    }
    .creator-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .creator-info h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 2px;
    }
    .creator-tag {
      font-size: 0.78rem;
      color: var(--primary-color);
      font-weight: 600;
    }

    /* 板块七：传统工具 vs 专用剪辑软件对比 */
    .compare-table-wrap {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: #F8FAFC;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table th.highlight-col, .compare-table td.highlight-col {
      background: rgba(99, 102, 241, 0.03);
      color: var(--primary-dark);
      font-weight: 600;
      border-left: 1px solid rgba(99, 102, 241, 0.2);
      border-right: 1px solid rgba(99, 102, 241, 0.2);
    }

    /* 板块八：性能数据看板 */
    .metrics-ribbon {
      background: var(--surface-dark);
      border-top: 1px solid var(--border-dark);
      border-bottom: 1px solid var(--border-dark);
      padding: 50px 0;
      color: #FFFFFF;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .metric-number {
      font-size: 2.6rem;
      font-weight: 900;
      color: var(--accent-cyan);
      margin-bottom: 4px;
      font-family: monospace;
    }
    .metric-label {
      font-size: 0.95rem;
      color: var(--text-light);
    }

    /* 板块九：创作者真实口碑墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .stars-line {
      color: #FBBF24;
      font-size: 0.85rem;
      margin-bottom: 12px;
    }

    /* 板块十：内嵌前沿技巧资讯 */
    .digest-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .digest-card {
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      background: #FFFFFF;
      transition: all 0.3s ease;
    }
    .digest-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    .digest-thumb {
      height: 180px;
      overflow: hidden;
      background: #000;
    }
    .digest-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .digest-card:hover .digest-thumb img {
      transform: scale(1.05);
    }
    .digest-body {
      padding: 22px;
    }
    .digest-date {
      font-size: 0.8rem;
      color: var(--text-light);
      margin-bottom: 6px;
    }
    .digest-title {
      font-size: 1.1rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    /* 板块十一：常见异议拆解 FAQ */
    .faq-container {
      max-width: 860px;
      margin: 0 auto;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 14px;
      overflow: hidden;
    }
    .faq-question {
      padding: 20px 24px;
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background-color 0.2s ease;
    }
    .faq-question:hover {
      background-color: var(--surface-light);
    }
    .faq-answer {
      padding: 0 24px 20px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
      display: block;
    }

    /* 板块十二：平台保障条 */
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .guarantee-box {
      text-align: center;
      padding: 28px 20px;
      background: #FFFFFF;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }
    .guarantee-icon {
      font-size: 2rem;
      color: #10B981;
      margin-bottom: 12px;
    }

    /* 板块十三：生态兼容矩阵 */
    .ecosystem-badges {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-top: 20px;
    }
    .eco-pill {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      padding: 12px 26px;
      border-radius: var(--radius-pill);
      font-weight: 600;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow-sm);
    }
    .eco-pill i {
      color: var(--primary-color);
      font-size: 1.1rem;
    }

    /* 板块十四：终极强力转化行动区 */
    .cta-card {
      background: var(--primary-grad);
      border-radius: var(--radius-lg);
      padding: 60px 40px;
      text-align: center;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(99, 102, 241, 0.35);
    }
    .cta-card h2 {
      font-size: 2.3rem;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-card p {
      max-width: 680px;
      margin: 0 auto 32px;
      font-size: 1.05rem;
      opacity: 0.92;
      line-height: 1.7;
    }

    /* 底部悬浮转化条 */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(10px);
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding: 14px 24px;
      z-index: 990;
      display: flex;
      align-items: center;
      justify-content: space-between;
      box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    }
    .sticky-info {
      display: flex;
      align-items: center;
      gap: 16px;
      color: #FFFFFF;
    }
    .sticky-info strong {
      font-size: 1.05rem;
    }

    /* 页脚 Footer */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      padding: 60px 0 30px;
      font-size: 0.9rem;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-col h5 {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: #64748B;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; text-align: center; }
      .hero-actions { justify-content: center; }
      .hero-support-badges { justify-content: center; }
      .indicator-grid { grid-template-columns: repeat(2, 1fr); }
      .innovations-grid { grid-template-columns: 1fr; }
      .feature-grid-6 { grid-template-columns: repeat(2, 1fr); }
      .dark-workflow-grid { grid-template-columns: 1fr; }
      .story-grid { grid-template-columns: 1fr; }
      .digest-grid { grid-template-columns: 1fr; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 640px) {
      .hero-content h1 { font-size: 2.1rem; }
      .section-title { font-size: 1.75rem; }
      .feature-grid-6 { grid-template-columns: 1fr; }
      .indicator-grid { grid-template-columns: 1fr; }
      .testimonial-grid { grid-template-columns: 1fr; }
      .guarantee-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .search-mockup { display: none; }
      .sticky-bar { flex-direction: column; gap: 10px; text-align: center; }
    }