/* roulang page: index */
:root {
      --primary: #00E5A0;
      --primary-dark: #00C48C;
      --accent: #FF6B35;
      --bg-deep: #0A0E27;
      --bg-mid: #1A1F3A;
      --surface-glass: rgba(255,255,255,0.06);
      --surface-hover: rgba(255,255,255,0.10);
      --border-light: rgba(255,255,255,0.12);
      --border-focus: rgba(0,229,160,0.4);
      --text-primary: #FFFFFF;
      --text-secondary: rgba(255,255,255,0.85);
      --text-muted: rgba(255,255,255,0.55);
      --shadow-card: 0 8px 32px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.08);
      --shadow-glow: 0 0 24px rgba(0,229,160,0.4);
      --radius-card: 16px;
      --radius-btn: 12px;
      --radius-tag: 20px;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-deep);
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: radial-gradient(circle at 20% 10%, #1a1f3a 0%, #0A0E27 70%);
      color: var(--text-secondary);
      line-height: 1.7;
      font-size: 16px;
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    img {
      max-width: 100%;
      display: block;
      object-fit: cover;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.25s ease;
    }
    button, .btn {
      font-family: inherit;
      cursor: pointer;
      transition: all 0.25s ease;
      border: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
    }
    h1, h2, h3 {
      color: var(--text-primary);
      font-weight: 700;
    }
    h1 {
      font-size: clamp(2rem, 5vw, 3.5rem);
      line-height: 1.15;
      font-weight: 800;
    }
    h2 {
      font-size: clamp(1.5rem, 3vw, 2.25rem);
      margin-bottom: 0.5rem;
    }
    h3 {
      font-size: 1.125rem;
      font-weight: 600;
    }
    /* 导航 PC */
    .nav-pc {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(10,14,39,0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0,229,160,0.2);
      transition: background 0.3s;
    }
    .nav-pc.scrolled {
      background: rgba(10,14,39,0.95);
      box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      font-size: 1.5rem;
      color: var(--primary);
    }
    .logo-icon {
      font-size: 1.8rem;
      filter: drop-shadow(0 0 8px var(--primary));
    }
    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }
    .nav-links a {
      color: var(--text-secondary);
      font-weight: 500;
      position: relative;
      padding: 4px 0;
    }
    .nav-links a:hover, .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: -6px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
    }
    .btn-primary-small {
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      color: #0A0E27;
      padding: 10px 20px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      box-shadow: 0 0 16px rgba(0,229,160,0.35);
    }
    .btn-primary-small:hover {
      box-shadow: 0 0 28px rgba(0,229,160,0.55);
      transform: translateY(-1px);
    }
    /* 移动端底部导航 */
    .mobile-nav {
      display: none;
      position: fixed;
      bottom: 16px;
      left: 16px;
      right: 16px;
      z-index: 110;
      background: rgba(10,14,39,0.92);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 24px;
      padding: 8px 12px;
      justify-content: space-around;
      align-items: center;
    }
    .mobile-nav a {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
      color: var(--text-muted);
      font-size: 0.7rem;
      padding: 6px 10px;
      border-radius: 16px;
      transition: 0.2s;
    }
    .mobile-nav a.active, .mobile-nav a:hover {
      color: var(--primary);
      background: rgba(0,229,160,0.1);
    }
    .mobile-nav .nav-icon {
      font-size: 1.3rem;
    }
    /* Hero */
    #hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding-top: 80px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .hero-left {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      background: rgba(0,229,160,0.15);
      border: 1px solid rgba(0,229,160,0.3);
      padding: 8px 18px;
      border-radius: 30px;
      color: var(--primary);
      font-weight: 600;
      width: fit-content;
    }
    .hero-stats {
      display: flex;
      gap: 32px;
      color: var(--text-muted);
      font-weight: 500;
      flex-wrap: wrap;
    }
    .hero-stats span {
      color: var(--primary);
      font-weight: 700;
    }
    .btn-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .btn-glow {
      background: linear-gradient(135deg, #00E5A0, #00C48C);
      color: #0A0E27;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      box-shadow: 0 0 24px rgba(0,229,160,0.45);
    }
    .btn-glow:hover {
      box-shadow: 0 0 36px rgba(0,229,160,0.7);
      transform: scale(1.02);
    }
    .btn-ghost {
      background: transparent;
      border: 1.5px solid rgba(0,229,160,0.6);
      color: var(--primary);
      padding: 14px 32px;
      border-radius: var(--radius-btn);
    }
    .btn-ghost:hover {
      background: rgba(0,229,160,0.1);
    }
    .hero-right {
      display: flex;
      justify-content: center;
    }
    .glass-card-hero {
      background: rgba(255,255,255,0.06);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 24px;
      padding: 20px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
      position: relative;
      overflow: hidden;
    }
    .glass-card-hero img {
      border-radius: 16px;
      width: 100%;
      height: auto;
      aspect-ratio: 4/3;
      object-fit: cover;
    }
    .shimmer {
      position: absolute;
      top:0;left:0;right:0;bottom:0;
      border-radius: 24px;
      background: linear-gradient(120deg, transparent 30%, rgba(0,229,160,0.2) 50%, transparent 70%);
      animation: shimmer 2.5s infinite;
      pointer-events: none;
    }
    @keyframes shimmer {
      0% { transform: translateX(-100%); }
      100% { transform: translateX(100%); }
    }
    /* 通用板块 */
    section {
      padding: 80px 0;
    }
    .section-title {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-title h2 {
      display: inline-block;
      position: relative;
    }
    .section-title h2::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), transparent);
    }
    .glass-card {
      background: var(--surface-glass);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      transition: all 0.3s ease;
    }
    .glass-card:hover {
      border-color: var(--border-focus);
      box-shadow: 0 12px 40px rgba(0,229,160,0.15);
      transform: translateY(-4px);
    }
    /* 亮点网格 */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .highlight-card {
      padding: 32px 24px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .highlight-icon {
      width: 48px;
      height: 48px;
      background: rgba(0,229,160,0.15);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: var(--primary);
    }
    /* 瀑布流案例 */
    .masonry {
      columns: 3;
      column-gap: 24px;
    }
    .match-card {
      break-inside: avoid;
      margin-bottom: 24px;
      background: var(--surface-glass);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-card);
      overflow: hidden;
      border: 1px solid var(--border-light);
      transition: 0.3s;
    }
    .match-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-focus);
    }
    .match-img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }
    .match-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: var(--accent);
      color: #fff;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.75rem;
      font-weight: 700;
    }
    .match-content {
      padding: 16px;
    }
    .odds {
      font-family: "DIN Alternate", "SF Mono", monospace;
      font-weight: 700;
      font-size: 1.4rem;
      color: var(--accent);
    }
    /* 对比表 */
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .compare-card {
      padding: 32px;
      background: var(--surface-glass);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-card);
    }
    .compare-card.highlight {
      border: 2px solid var(--primary);
      box-shadow: 0 0 24px rgba(0,229,160,0.25);
    }
    /* 下载区 */
    .download-buttons {
      display: flex;
      gap: 24px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .pill-btn {
      padding: 16px 36px;
      border-radius: 40px;
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.2);
      color: white;
      font-weight: 600;
    }
    /* FAQ */
    .faq-item {
      background: var(--surface-glass);
      backdrop-filter: blur(16px);
      border-radius: var(--radius-card);
      margin-bottom: 16px;
      border-left: 3px solid transparent;
    }
    .faq-item.active {
      border-left-color: var(--primary);
    }
    .faq-question {
      padding: 20px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
    }
    .faq-answer {
      padding: 0 20px 20px;
      display: none;
      color: var(--text-muted);
    }
    .faq-item.active .faq-answer {
      display: block;
    }
    /* 页脚 */
    footer {
      background: #060A1A;
      padding: 60px 0 30px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .masonry { columns: 2; }
    }
    @media (max-width: 768px) {
      .nav-pc { display: none; }
      .mobile-nav { display: flex; }
      .highlights-grid { grid-template-columns: 1fr; }
      .masonry { columns: 1; }
      .compare-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      #hero { padding-top: 20px; }
    }