/* roulang page: index */
* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    :root {
      --primary: #1A1D23;
      --secondary: #2C3E50;
      --accent: #E85D3A;
      --accent-hover: #D14A2C;
      --bg: #F4F5F7;
      --card-bg: #FFFFFF;
      --dark-bg: #0F1117;
      --text-primary: #1A1D23;
      --text-body: #3A3F47;
      --text-muted: #7B818C;
      --text-on-dark: #FFFFFF;
      --text-on-dark-muted: #B0B8C1;
      --success: #27AE60;
      --warning: #F39C12;
      --border-light: #E0E3E8;
      --border-card: #E8EBF0;
      --shadow-card: 0 2px 12px rgba(26,29,35,0.06);
      --shadow-card-hover: 0 8px 28px rgba(26,29,35,0.12);
      --shadow-nav: 0 1px 6px rgba(0,0,0,0.06);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-btn: 8px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
      --font-mono: "DIN Alternate", "Roboto Mono", "Menlo", monospace;
      --max-width: 1280px;
      --section-gap: 100px;
      --card-padding: 28px;
      --grid-gap: 24px;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg);
      color: var(--text-body);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 40px;
      width: 100%;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, .btn {
      cursor: pointer;
      font-family: var(--font-sans);
      border: none;
      background: none;
      font-weight: 600;
      transition: all 0.2s ease;
    }
    h1, h2, h3, h4 {
      color: var(--text-primary);
      font-weight: 600;
    }
    h1 {
      font-size: 48px;
      line-height: 1.2;
      font-weight: 700;
    }
    h2 {
      font-size: 36px;
      line-height: 1.3;
    }
    h3 {
      font-size: 20px;
      line-height: 1.4;
    }
    h4 {
      font-size: 18px;
      line-height: 1.5;
    }

    /* 导航 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(255,255,255,0.95);
      backdrop-filter: blur(6px);
      box-shadow: none;
      z-index: 100;
      display: flex;
      align-items: center;
      transition: box-shadow 0.2s;
    }
    .header.scrolled {
      box-shadow: var(--shadow-nav);
      border-bottom: 1px solid var(--border-light);
    }
    .nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }
    .logo {
      font-weight: 700;
      font-size: 22px;
      color: var(--primary);
      letter-spacing: 0.5px;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .logo span {
      color: var(--accent);
      font-size: 24px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }
    .nav-links a {
      font-size: 15px;
      color: var(--text-primary);
      font-weight: 500;
      padding: 8px 0;
      border-bottom: 2px solid transparent;
      transition: color 0.2s, border-color 0.2s;
    }
    .nav-links a.active,
    .nav-links a:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }
    .nav-cta {
      background: var(--accent);
      color: white;
      height: 38px;
      padding: 0 24px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 15px;
      display: flex;
      align-items: center;
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
    }
    .hamburger span {
      width: 24px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .mobile-menu {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      width: 75%;
      max-width: 320px;
      height: 100vh;
      background: white;
      box-shadow: -5px 0 20px rgba(0,0,0,0.08);
      z-index: 200;
      padding: 80px 30px;
      flex-direction: column;
      gap: 28px;
      transform: translateX(100%);
      transition: transform 0.3s ease;
    }
    .mobile-menu.active {
      transform: translateX(0);
    }
    .mobile-menu a {
      font-size: 18px;
      font-weight: 500;
      color: var(--primary);
    }
    .overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.37);
      z-index: 150;
    }
    .overlay.active {
      display: block;
    }

    /* 通用版块 */
    section {
      padding: var(--section-gap) 0;
    }
    .section-title {
      margin-bottom: 48px;
      text-align: left;
    }

    /* 按钮 */
    .btn-primary {
      background: var(--accent);
      color: white;
      height: 48px;
      padding: 0 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
      transition: all 0.2s;
    }
    .btn-primary:hover {
      background: var(--accent-hover);
      transform: scale(1.03);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--primary);
      color: var(--primary);
      height: 48px;
      padding: 0 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      display: inline-flex;
      align-items: center;
    }
    .btn-outline:hover {
      background: rgba(26,29,35,0.05);
    }
    .btn-white-outline {
      border-color: white;
      color: white;
    }
    .btn-white-outline:hover {
      background: rgba(255,255,255,0.12);
    }

    /* Hero */
    .hero-grid {
      display: flex;
      gap: 48px;
      align-items: center;
      min-height: 85vh;
      padding-top: 80px;
    }
    .hero-left {
      flex: 0 0 55%;
    }
    .hero-right {
      flex: 0 0 45%;
      position: relative;
    }
    .hero-badge-group {
      display: flex;
      gap: 16px;
      margin: 28px 0 32px;
    }
    .badge-item {
      background: var(--card-bg);
      border-radius: var(--radius-sm);
      padding: 12px 18px;
      box-shadow: var(--shadow-card);
      text-align: center;
    }
    .badge-number {
      font-family: var(--font-mono);
      font-size: 28px;
      font-weight: 700;
      color: var(--accent);
    }
    .badge-label {
      font-size: 13px;
      color: var(--text-muted);
    }
    .hero-image {
      width: 100%;
      height: 540px;
      border-radius: 20px;
      overflow: hidden;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      position: relative;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(26,29,35,0.7) 0%, rgba(26,29,35,0.2) 100%);
    }
    .live-badge {
      position: absolute;
      top: 20px;
      right: 20px;
      background: rgba(15,17,23,0.8);
      backdrop-filter: blur(4px);
      color: white;
      padding: 8px 18px;
      border-radius: 20px;
      font-family: var(--font-mono);
      font-size: 16px;
      font-weight: 600;
    }

    /* 亮点网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--grid-gap);
    }
    .feature-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: var(--card-padding);
      box-shadow: var(--shadow-card);
      transition: all 0.25s;
      border-left: 3px solid transparent;
      cursor: default;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-card-hover);
      border-left-color: var(--accent);
    }
    .feature-large {
      grid-column: span 2;
      display: flex;
      gap: 28px;
      align-items: center;
    }
    .feature-icon {
      width: 64px;
      height: 64px;
      background: #F0F2F5;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 30px;
    }
    .micro-badge {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--accent);
      background: rgba(232,93,58,0.08);
      padding: 4px 10px;
      border-radius: 20px;
      display: inline-block;
      margin-top: 10px;
    }

    /* 赛事时间线 */
    .timeline {
      position: relative;
      padding-left: 30px;
    }
    .timeline::before {
      content: '';
      position: absolute;
      left: 10px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: var(--border-light);
    }
    .match-item {
      display: flex;
      align-items: center;
      margin-bottom: 28px;
      position: relative;
    }
    .time-dot {
      position: absolute;
      left: -25px;
      width: 12px;
      height: 12px;
      background: var(--accent);
      border-radius: 50%;
      top: 24px;
    }
    .time-label {
      font-family: var(--font-mono);
      font-size: 14px;
      color: var(--text-muted);
      min-width: 80px;
    }
    .match-card {
      flex: 1;
      background: var(--card-bg);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      align-items: center;
      gap: 20px;
      box-shadow: var(--shadow-card);
      transition: 0.2s;
      margin-left: 24px;
    }
    .match-card:hover {
      transform: translateX(4px);
      box-shadow: var(--shadow-card-hover);
    }
    .team-badge {
      width: 40px;
      height: 40px;
      background: #ECF0F3;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
    }
    .score {
      font-family: var(--font-mono);
      font-size: 28px;
      font-weight: 700;
    }
    .status {
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
    }
    .status.live { background: #E6F9EF; color: var(--success); }
    .status.upcoming { background: #EBF5FB; color: #2980B9; }

    /* 方案对比 */
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--grid-gap);
    }
    .plan-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      box-shadow: var(--shadow-card);
      position: relative;
      display: flex;
      flex-direction: column;
    }
    .plan-popular {
      border: 2px solid var(--accent);
    }
    .popular-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--warning);
      color: white;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 14px;
    }
    .plan-price {
      font-family: var(--font-mono);
      font-size: 36px;
      font-weight: 700;
      margin: 16px 0;
    }
    .feature-list {
      list-style: none;
      margin: 24px 0 32px;
    }
    .feature-list li {
      padding: 8px 0;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      gap: 10px;
    }

    /* FAQ */
    .faq-wrapper {
      display: flex;
      gap: 48px;
    }
    .faq-left {
      flex: 0 0 60%;
    }
    .faq-right {
      flex: 0 0 35%;
    }
    .accordion-item {
      border-bottom: 1px solid var(--border-card);
    }
    .accordion-question {
      width: 100%;
      text-align: left;
      padding: 20px 0;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 18px;
    }
    .accordion-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      color: var(--text-body);
    }

    /* CTA 区 */
    .dark-cta {
      background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      background-blend-mode: overlay;
      background-color: rgba(15,17,23,0.88);
      filter: saturate(0.8);
      backdrop-filter: blur(3px);
      text-align: center;
      padding: 100px 20px;
    }
    .dark-cta h2 {
      color: white;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding: 60px 0;
    }
    .copyright {
      text-align: center;
      font-size: 13px;
      color: var(--text-muted);
      padding: 24px 0;
      border-top: 1px solid var(--border-light);
    }

    @media (max-width: 1024px) {
      .container { padding: 0 20px; }
      .hero-grid { flex-direction: column; }
      .hero-left, .hero-right { flex: auto; width: 100%; }
      .features-grid { grid-template-columns: 1fr 1fr; }
      .feature-large { grid-column: span 1; flex-direction: column; }
      .plans-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
      .faq-wrapper { flex-direction: column; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
    }
    @media (max-width: 640px) {
      h1 { font-size: 36px; }
      .features-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .mobile-menu { display: flex; }
    }