/* roulang page: index */
:root {
      --primary: #0A3D2E;
      --primary-light: #0D4F3A;
      --accent: #D49B17;
      --neon: #2EFF7E;
      --bg-warm: #F7F5F0;
      --bg-dark: #051C15;
      --card-bg: #FFFFFF;
      --text-dark: #051C15;
      --text-body: #2E3B35;
      --text-muted: #7A7D79;
      --text-light: #F0EFE9;
      --shadow-sm: 0 2px 12px rgba(10,61,46,0.06);
      --shadow-hover: 0 12px 32px rgba(10,61,46,0.12);
      --shadow-nav: 0 2px 20px rgba(0,0,0,0.08);
      --border-radius-card: 16px;
      --border-radius-btn: 8px;
      --border-radius-pill: 50px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-mono: "Inter", "DIN Alternate", "Oswald", sans-serif;
      --transition: 0.25s ease-in-out;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg-warm);
      color: var(--text-body);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    h1, h2, h3, h4 {
      font-weight: 700;
      color: var(--text-dark);
      letter-spacing: -0.3px;
    }
    h1 {
      font-size: 48px;
      line-height: 1.1;
      font-weight: 800;
      letter-spacing: -0.5px;
    }
    h2 {
      font-size: 36px;
      line-height: 1.25;
      margin-bottom: 16px;
    }
    h3 {
      font-size: 22px;
      line-height: 1.35;
      font-weight: 600;
    }
    .section {
      padding: 100px 0;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      display: block;
    }
    button, .btn {
      cursor: pointer;
      font-family: var(--font-sans);
      border: none;
      background: none;
      font-weight: 600;
      transition: var(--transition);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--border-radius-btn);
    }
    .btn-primary {
      background: var(--primary);
      color: var(--text-light);
      padding: 14px 32px;
      font-size: 16px;
      box-shadow: 0 4px 12px rgba(10,61,46,0.2);
    }
    .btn-primary:hover {
      background: var(--primary-light);
      box-shadow: 0 0 18px rgba(46,255,126,0.4);
      transform: translateY(-1px);
    }
    .btn-outline {
      border: 1.5px solid var(--accent);
      color: var(--accent);
      background: transparent;
      padding: 14px 32px;
      font-size: 16px;
    }
    .btn-outline:hover {
      background: var(--accent);
      color: #fff;
    }
    .btn-neon {
      background: var(--neon);
      color: var(--primary);
      padding: 18px 48px;
      font-weight: 700;
      font-size: 18px;
      border-radius: var(--border-radius-btn);
      box-shadow: 0 0 18px rgba(46,255,126,0.5);
      animation: pulse-glow 2s infinite;
    }
    @keyframes pulse-glow {
      0% { box-shadow: 0 0 12px rgba(46,255,126,0.45); }
      50% { box-shadow: 0 0 28px rgba(46,255,126,0.8); }
      100% { box-shadow: 0 0 12px rgba(46,255,126,0.45); }
    }
    .text-neon {
      color: var(--neon);
      font-family: var(--font-mono);
    }
    .badge {
      background: rgba(46,255,126,0.15);
      color: var(--primary);
      padding: 6px 16px;
      border-radius: var(--border-radius-pill);
      font-size: 13px;
      font-weight: 600;
    }
    /* 导航 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      padding: 16px 0;
      transition: background 0.3s, box-shadow 0.3s, backdrop-filter 0.3s;
      background: transparent;
    }
    .navbar.scrolled {
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(10px);
      box-shadow: var(--shadow-nav);
      border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    .navbar .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo {
      font-size: 26px;
      font-weight: 800;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 6px;
      letter-spacing: 1px;
    }
    .navbar.scrolled .logo {
      color: var(--primary);
    }
    .logo-icon {
      font-size: 34px;
      line-height: 1;
    }
    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }
    .nav-links a {
      color: rgba(255,255,255,0.9);
      font-weight: 500;
      font-size: 15px;
      transition: color 0.2s;
    }
    .navbar.scrolled .nav-links a {
      color: var(--text-body);
    }
    .nav-links a:hover {
      color: var(--neon);
    }
    .navbar.scrolled .nav-links a:hover {
      color: var(--primary);
    }
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
    }
    .hamburger span {
      width: 26px;
      height: 2.5px;
      background: #fff;
      transition: 0.3s;
    }
    .navbar.scrolled .hamburger span {
      background: var(--primary);
    }
    @media(max-width:768px){
      .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-dark);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        z-index: 999;
      }
      .nav-links.active {
        display: flex;
      }
      .nav-links a {
        font-size: 24px;
        color: #fff;
      }
      .hamburger {
        display: flex;
        z-index: 1001;
      }
      .navbar.scrolled .hamburger span {
        background: var(--primary);
      }
    }
    /* Hero */
    .hero {
      display: flex;
      align-items: center;
      min-height: 100vh;
      background: linear-gradient(135deg, #0A3D2E 0%, #051C15 100%);
      position: relative;
      overflow: hidden;
      padding-top: 80px;
    }
    .hero-bg {
      position: absolute;
      top:0;left:0;width:100%;height:100%;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      opacity: 0.25;
    }
    .hero .container {
      display: flex;
      align-items: center;
      gap: 60px;
      position: relative;
      z-index: 2;
    }
    .hero-left {
      flex: 1 1 55%;
      color: #fff;
    }
    .hero-tag {
      color: var(--accent);
      font-weight: 600;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .hero-left h1 {
      color: #fff;
      font-size: 52px;
      margin-bottom: 24px;
    }
    .hero-sub {
      font-size: 18px;
      color: rgba(255,255,255,0.8);
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }
    .trust-text {
      font-size: 14px;
      color: rgba(255,255,255,0.7);
    }
    .hero-right {
      flex: 1 1 45%;
      background: rgba(0,0,0,0.4);
      backdrop-filter: blur(12px);
      border-radius: 24px;
      padding: 24px;
      border: 1px solid rgba(255,255,255,0.15);
    }
    .dashboard-mock {
      display: flex;
      flex-direction: column;
      gap: 12px;
      font-family: var(--font-mono);
    }
    .mock-line {
      display: flex;
      justify-content: space-between;
      color: var(--neon);
    }
    @media(max-width:768px){
      .hero .container {
        flex-direction: column;
        text-align: center;
      }
      .hero-left h1 {
        font-size: 38px;
      }
      .hero-actions {
        justify-content: center;
      }
    }
    /* 实时热点 */
    .ticker {
      background: #EAF5F0;
      padding: 16px 0;
      overflow: hidden;
      white-space: nowrap;
    }
    .ticker-track {
      display: flex;
      animation: scroll-left 25s linear infinite;
      gap: 48px;
    }
    .ticker-item {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-weight: 600;
    }
    @keyframes scroll-left {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }
    /* 卡片网格 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 28px;
    }
    .advantage-card {
      background: var(--card-bg);
      padding: 32px 24px;
      border-radius: var(--border-radius-card);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .advantage-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
    }
    .icon-placeholder {
      font-size: 40px;
      margin-bottom: 16px;
    }
    /* 瀑布流 */
    .waterfall {
      columns: 2;
      column-gap: 24px;
    }
    .match-card {
      background: #fff;
      border-radius: 16px;
      overflow: hidden;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
      break-inside: avoid;
      transition: var(--transition);
    }
    .match-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .match-img {
      height: 180px;
      background: #ddd;
    }
    .match-body {
      padding: 20px;
    }
    .teams {
      display: flex;
      justify-content: space-between;
      font-weight: 700;
      margin: 12px 0;
    }
    .odds {
      background: var(--neon);
      color: #051C15;
      padding: 4px 12px;
      border-radius: 20px;
      font-weight: 700;
    }
    @media(max-width:768px){
      .grid-3, .waterfall {
        grid-template-columns: 1fr;
        columns: 1;
      }
    }
    /* 对比表 */
    .compare-table {
      display: flex;
      gap: 24px;
    }
    .compare-col {
      flex:1;
      background: #fff;
      border-radius: 20px;
      padding: 32px;
    }
    .col-bad {
      border: 1px solid #ddd;
    }
    .col-good {
      border: 2px solid var(--primary);
      background: #f4fbf8;
    }
    .compare-row {
      display: flex;
      justify-content: space-between;
      padding: 16px 0;
      border-bottom: 1px solid #eee;
    }
    @media(max-width:768px){
      .compare-table {
        flex-direction: column;
      }
    }
    /* 数据带 */
    .stats-band {
      background: var(--bg-dark);
      display: flex;
      justify-content: space-around;
      padding: 60px 0;
      color: #fff;
      text-align: center;
    }
    .stat-number {
      font-size: 48px;
      font-weight: 700;
      color: var(--neon);
    }
    /* FAQ */
    .faq-item {
      border-bottom: 1px solid #ddd;
      padding: 18px 0;
    }
    .faq-question {
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: 0.3s;
      background: #F0F5F2;
      padding: 0 16px;
      margin-top: 8px;
      border-left: 4px solid var(--primary);
    }
    .faq-answer.open {
      max-height: 200px;
      padding: 16px;
    }
    /* CTA横幅 */
    .cta-banner {
      background: #051C15 radial-gradient(circle at 30% 40%, rgba(46,255,126,0.15) 0%, transparent 60%);
      padding: 80px 0;
      text-align: center;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
      gap: 40px;
      padding: 60px 0;
    }
    @media(max-width:768px){
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .stats-band {
        flex-wrap: wrap;
        gap: 24px;
      }
    }