/* roulang page: index */
:root {
      --primary: #1A3A5C;
      --primary-dark: #0F2A40;
      --accent: #E85D04;
      --accent-hover: #C94D03;
      --bg: #FAFBFD;
      --card-bg: #FFFFFF;
      --text-dark: #1E2A38;
      --text-muted: #5C6B7A;
      --border: #E6ECF2;
      --success: #0F7B4E;
      --warning: #D4A017;
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-badge: 6px;
      --shadow-card: 0 2px 12px rgba(26,58,92,0.06);
      --shadow-hover: 0 8px 24px rgba(26,58,92,0.12);
      --transition: all 0.25s ease;
      --font-mono: 'SF Mono', 'Fira Code', 'Courier New', monospace;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      background: var(--bg);
      color: var(--text-dark);
      line-height: 1.75;
      font-weight: 400;
      overflow-x: hidden;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    h1, h2, h3, h4 {
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    h2 {
      font-size: 2rem;
      margin-bottom: 0.5rem;
    }
    .section-padding {
      padding: 90px 0;
    }
    @media (max-width: 640px) {
      .section-padding {
        padding: 56px 0;
      }
      h2 {
        font-size: 1.8rem;
      }
    }
    .lead {
      font-size: 1.125rem;
      color: var(--text-muted);
      margin-bottom: 2rem;
    }
    /* 导航组合 Hero 分屏 */
    .hero-wrapper {
      display: flex;
      min-height: 85vh;
      background: var(--bg);
    }
    .hero-left {
      width: 58%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 60px 40px 60px 60px;
      position: relative;
    }
    .hero-right {
      width: 42%;
      background: linear-gradient(135deg, #1A3A5C 0%, #0F2A40 100%);
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 24px 32px 48px;
      overflow: hidden;
    }
    .hero-right::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      mix-blend-mode: overlay;
    }
    .hero-nav {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 18px;
      margin-top: 20px;
    }
    .hero-nav a {
      color: rgba(255,255,255,0.85);
      font-weight: 500;
      font-size: 1.1rem;
      transition: var(--transition);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-nav a:hover {
      color: white;
      transform: translateX(4px);
    }
    .logo-area {
      position: absolute;
      top: 32px;
      left: 60px;
      font-size: 1.7rem;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 8px;
      z-index: 10;
    }
    .logo-icon {
      font-size: 2rem;
      color: var(--accent);
    }
    .hero-title {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.2;
      margin: 1rem 0 1.2rem;
    }
    .live-score-demo {
      background: var(--card-bg);
      box-shadow: var(--shadow-card);
      border-radius: var(--radius-card);
      padding: 18px 24px;
      display: inline-flex;
      align-items: center;
      gap: 20px;
      margin: 20px 0 28px;
      font-weight: 600;
    }
    .team-score {
      font-family: var(--font-mono);
      font-feature-settings: "tnum";
      font-size: 2.2rem;
      font-weight: 700;
    }
    .winner {
      color: var(--accent);
    }
    .btn-primary {
      background: var(--accent);
      color: white;
      border-radius: var(--radius-btn);
      padding: 14px 32px;
      font-weight: 600;
      display: inline-block;
      transition: var(--transition);
      border: none;
      cursor: pointer;
      font-size: 1rem;
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      color: white;
      box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);
    }
    .btn-secondary {
      background: transparent;
      border: 1.5px solid var(--primary);
      color: var(--primary);
      border-radius: var(--radius-btn);
      padding: 12px 28px;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-secondary:hover {
      background: var(--primary);
      color: white;
    }
    .text-link {
      color: var(--primary);
      font-weight: 500;
      transition: var(--transition);
    }
    .text-link:hover {
      color: var(--accent);
      text-decoration: underline;
    }
    @media (max-width: 1024px) {
      .hero-wrapper {
        flex-direction: column;
        min-height: auto;
      }
      .hero-left, .hero-right {
        width: 100%;
        padding: 40px 24px;
      }
      .hero-left {
        order: 1;
      }
      .hero-right {
        order: 2;
        min-height: 280px;
      }
      .logo-area {
        position: static;
        margin-bottom: 20px;
      }
      .hero-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 20px;
      }
    }
    /* 亮点网格 */
    .score-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .score-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px 16px;
      text-align: center;
      transition: var(--transition);
    }
    .score-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .team-badge {
      width: 48px;
      height: 48px;
      margin: 0 auto 12px;
      background: #f0f3f7;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: var(--primary);
    }
    .score-number {
      font-family: var(--font-mono);
      font-size: 2rem;
      font-weight: 700;
    }
    .status {
      font-size: 0.8rem;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      display: inline-block;
      margin-top: 8px;
    }
    .status.live { background: #E85D04; color: white; }
    .status.finished { background: #8B9AAB; color: white; }
    .status.upcoming { background: #1A3A5C; color: white; }
    @media (max-width: 768px) {
      .score-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    /* 服务卡片 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 2rem;
    }
    .service-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 32px 28px;
      transition: var(--transition);
    }
    .service-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .icon-circle {
      width: 56px;
      height: 56px;
      background: rgba(26,58,92,0.08);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      color: var(--primary);
      margin-bottom: 20px;
    }
    @media (max-width: 640px) {
      .services-grid {
        grid-template-columns: 1fr;
      }
    }
    /* 瀑布流 */
    .waterfall {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 2rem;
    }
    .case-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: var(--transition);
    }
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .case-img {
      position: relative;
      height: 180px;
      background: #ddd;
    }
    .case-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .case-img::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 50%;
      background: linear-gradient(to top, rgba(26,58,92,0.8), transparent);
    }
    .case-content {
      padding: 20px;
    }
    @media (max-width: 1024px) {
      .waterfall {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .waterfall {
        grid-template-columns: 1fr;
      }
    }
    /* 对比表 */
    .compare-table {
      display: flex;
      gap: 0;
      margin-top: 2rem;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .plan-col {
      flex: 1;
      background: white;
      text-align: center;
      padding: 28px 16px;
      border-right: 1px solid var(--border);
    }
    .plan-col:last-child { border-right: none; }
    .plan-header {
      background: var(--primary);
      color: white;
      padding: 18px;
      margin: -28px -16px 20px;
    }
    .feature-row {
      padding: 12px 0;
      border-bottom: 1px solid #f1f4f8;
    }
    .recommended {
      border-left: 4px solid var(--accent);
      background: #fef9f5;
    }
    @media (max-width: 768px) {
      .compare-table {
        flex-direction: column;
      }
    }
    /* FAQ */
    .accordion-title {
      font-weight: 600;
      font-size: 1.1rem;
      background: white;
      border: 1px solid var(--border);
      border-radius: var(--radius-btn);
      padding: 14px 20px;
      margin-bottom: 8px;
      transition: var(--transition);
    }
    .accordion-title:hover {
      background: #f8fafc;
    }
    .accordion-title[aria-expanded="true"] {
      color: var(--accent);
      border-color: var(--accent);
    }
    .accordion-content {
      background: #F4F6F9;
      border-radius: 6px;
      padding: 16px 20px;
      margin-bottom: 12px;
    }
    /* CTA 区域 */
    .cta-block {
      background: #EDF2F8;
      border-radius: var(--radius-card);
      text-align: center;
      padding: 64px 20px;
    }
    /* 页脚 */
    .footer {
      background: #1E2A38;
      color: #B0BEC5;
      padding: 60px 0 30px;
    }
    .footer a:hover { color: white; }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
    }
    @media (max-width: 640px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    .copyright {
      border-top: 1px solid #37474F;
      margin-top: 40px;
      padding-top: 20px;
      text-align: center;
      font-size: 0.9rem;
    }