/* roulang page: index */
:root {
      --deep-purple: #1A0F2E;
      --dark-purple-gradient: #2D1B4E;
      --cyan: #00F0FF;
      --bright-purple: #7B2FBE;
      --warm-orange: #FF6B35;
      --light-gray-blue: #F0F4FA;
      --soft-white: #F8F9FC;
      --pure-white: #FFFFFF;
      --text-dark: #1E1E2F;
      --text-gray: #6C757D;
      --text-muted: #8A8D93;
      --border-light: #E9ECEF;
      --shadow-sm: 0 4px 20px rgba(0,0,0,0.06);
      --shadow-md: 0 8px 30px rgba(0,0,0,0.12);
      --radius-card: 12px;
      --radius-btn: 8px;
      --font-heading: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Source Han Sans CN', system-ui, -apple-system, sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
      --font-mono: 'Roboto Mono', 'Courier New', monospace;
      --transition: 0.25s ease;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-body);
      line-height: 1.65;
      color: var(--text-dark);
      background-color: var(--pure-white);
      margin: 0;
      overflow-x: hidden;
    }
    h1, h2, h3, h4 {
      font-family: var(--font-heading);
      font-weight: 700;
      letter-spacing: -0.02em;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, .btn-custom {
      font-family: var(--font-heading);
      transition: var(--transition);
      border-radius: var(--radius-btn);
      font-weight: 600;
      padding: 0.7rem 2rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
    }
    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }
    /* 导航栏 */
    #mainNav {
      background: rgba(26, 15, 46, 0.82);
      backdrop-filter: blur(12px);
      box-shadow: 0 4px 18px rgba(0,0,0,0.2);
      padding: 0.8rem 0;
      position: fixed;
      width: 100%;
      z-index: 1020;
    }
    .navbar-brand {
      font-family: var(--font-heading);
      font-weight: 800;
      font-size: 1.8rem;
      color: var(--pure-white);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .brand-icon {
      color: var(--cyan);
      font-size: 2rem;
    }
    .nav-link {
      color: rgba(255,255,255,0.85) !important;
      font-weight: 500;
      margin: 0 0.3rem;
      transition: var(--transition);
      padding: 0.5rem 0.9rem;
      border-radius: 6px;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--cyan) !important;
      background: rgba(255,255,255,0.08);
    }
    .btn-primary-custom {
      background: var(--cyan);
      color: var(--deep-purple);
      border: none;
      font-weight: 700;
    }
    .btn-primary-custom:hover {
      background: var(--bright-purple);
      color: white;
      box-shadow: 0 0 18px rgba(123,47,190,0.6);
    }
    .countdown-badge {
      background: var(--warm-orange);
      color: white;
      border-radius: 20px;
      padding: 0.35rem 1rem;
      font-family: var(--font-mono);
      font-weight: 600;
      font-size: 0.9rem;
      margin-left: 0.8rem;
      display: inline-flex;
      align-items: center;
      gap: 0.3rem;
      animation: pulse-badge 1.8s infinite;
    }
    @keyframes pulse-badge {
      0% { box-shadow: 0 0 0 0 rgba(255,107,53,0.7); }
      70% { box-shadow: 0 0 0 8px rgba(255,107,53,0); }
      100% { box-shadow: 0 0 0 0 rgba(255,107,53,0); }
    }
    /* Hero */
    #hero {
      background: linear-gradient(135deg, #1A0F2E 0%, #2D1B4E 100%);
      padding: 7rem 0 5rem;
      color: white;
      position: relative;
      overflow: hidden;
    }
    .hero-title {
      font-size: 3.4rem;
      font-weight: 800;
      line-height: 1.25;
    }
    .highlight {
      color: var(--cyan);
    }
    .hero-sub {
      font-size: 1.25rem;
      color: rgba(255,255,255,0.8);
      margin: 1.5rem 0 2rem;
    }
    .btn-outline-cyan {
      background: transparent;
      border: 2px solid var(--cyan);
      color: var(--cyan);
    }
    .btn-outline-cyan:hover {
      background: rgba(0,240,255,0.1);
      border-color: var(--bright-purple);
      color: white;
    }
    .hero-image-col {
      position: relative;
      min-height: 320px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-radius: 24px;
      overflow: hidden;
      box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(26,15,46,0.5) 0%, rgba(45,27,78,0.7) 100%);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .floating-icon {
      font-size: 5rem;
      color: var(--cyan);
      opacity: 0.7;
      animation: float 4s ease-in-out infinite;
    }
    @keyframes float {
      0% { transform: translateY(0px); }
      50% { transform: translateY(-14px); }
      100% { transform: translateY(0px); }
    }
    /* 亮点网格 */
    .highlight-card {
      background: var(--pure-white);
      border-radius: var(--radius-card);
      padding: 2rem 1.5rem;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      height: 100%;
      border: 1px solid var(--border-light);
    }
    .highlight-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: var(--cyan);
    }
    .highlight-icon {
      font-size: 2.8rem;
      color: var(--cyan);
      margin-bottom: 1rem;
    }
    .data-number {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--deep-purple);
    }
    /* 赛事瀑布流 */
    .match-card {
      border-radius: var(--radius-card);
      overflow: hidden;
      background: white;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      margin-bottom: 1.8rem;
      break-inside: avoid;
    }
    .match-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .match-img {
      height: 180px;
      object-fit: cover;
      width: 100%;
    }
    .match-info {
      padding: 1.2rem;
      background: white;
    }
    .odds-btn {
      background: var(--cyan);
      color: #1A0F2E;
      font-weight: 700;
      padding: 0.4rem 1.4rem;
      border-radius: 20px;
      font-size: 0.9rem;
    }
    /* 对比表 */
    .plan-col {
      background: white;
      border-radius: var(--radius-card);
      padding: 2rem 1.5rem;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .plan-highlight {
      background: linear-gradient(145deg, #E0F7FA, #E0F2FE);
      border: 2px solid var(--cyan);
      position: relative;
    }
    .badge-recommend {
      background: var(--warm-orange);
      color: white;
      padding: 0.25rem 1rem;
      border-radius: 20px;
      font-size: 0.8rem;
    }
    /* FAQ */
    .accordion-button:not(.collapsed) {
      background: #E8F9FA;
      color: var(--deep-purple);
      border-left: 4px solid var(--cyan);
    }
    /* CTA横幅 */
    .cta-banner {
      background: linear-gradient(120deg, #1A0F2E 0%, #00F0FF 100%);
      border-radius: 28px;
      padding: 3.5rem 2rem;
      color: white;
    }
    .subscribe-input {
      border-radius: 30px;
      padding: 0.8rem 1.5rem;
      border: 2px solid white;
      background: rgba(255,255,255,0.15);
      color: white;
    }
    .subscribe-input::placeholder {
      color: rgba(255,255,255,0.7);
    }
    footer {
      background: #0F0A1A;
      color: #cccccc;
    }
    @media (max-width: 768px) {
      .hero-title { font-size: 2.2rem; }
      .container-custom { padding: 0 16px; }
    }