/* roulang page: index */
:root {
      --primary-deep: #0A1428;
      --primary-mid: #162B4C;
      --accent-gold: #C8A951;
      --accent-gold-light: #D4AF37;
      --energy-blue: #00D8FF;
      --text-light: #F0F4FA;
      --text-dim: #B0C4DE;
      --card-dark: #1A2C45;
      --card-light: #FFFFFF;
      --bg-light-section: #F8FAFC;
      --bg-dark-section: #0F1D32;
      --footer-bg: #060E1A;
      --border-subtle: rgba(200, 169, 81, 0.2);
      --border-gold: rgba(200, 169, 81, 0.5);
      --glass-bg: rgba(10, 20, 40, 0.85);
      --shadow-glow: 0 0 30px rgba(0, 216, 255, 0.3);
      --shadow-card: 0 15px 30px rgba(0, 0, 0, 0.3);
      --radius-sm: 12px;
      --radius-md: 20px;
      --radius-lg: 24px;
      --radius-pill: 50px;
      --font-zh: "PingFang SC", "Microsoft YaHei", sans-serif;
      --font-en: "Inter", "Roboto", sans-serif;
      --transition-smooth: all 0.3s cubic-bezier(0.2, 0.9, 0.4, 1);
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: var(--font-zh);
      background-color: var(--primary-deep);
      color: var(--text-dim);
      line-height: 1.6;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    h1, h2, h3, h4, .hero-title, .section-title {
      font-family: var(--font-zh);
      color: var(--text-light);
      font-weight: 700;
    }

    .en-font, .stat-number, .score-number, .live-badge {
      font-family: var(--font-en);
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: var(--transition-smooth);
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 导航栏 */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: var(--glass-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--accent-gold);
      z-index: 1000;
      padding: 12px 0;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 800;
      color: var(--accent-gold);
      letter-spacing: 1px;
      white-space: nowrap;
    }
    .logo span {
      color: white;
      font-weight: 600;
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      align-items: center;
      list-style: none;
    }

    .nav-links a {
      color: var(--text-light);
      font-weight: 500;
      font-size: 1rem;
      position: relative;
      padding: 4px 0;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--accent-gold);
      transition: width 0.3s ease;
    }

    .nav-links a:hover {
      color: var(--accent-gold);
    }
    .nav-links a:hover::after {
      width: 100%;
    }

    .menu-toggle {
      display: none;
      background: none;
      border: none;
      color: var(--text-light);
      font-size: 1.8rem;
      cursor: pointer;
    }

    /* Hero */
    #hero {
      padding: 140px 0 80px;
      background: radial-gradient(circle at 30% 40%, #162B4C 0%, #0A1428 70%);
      position: relative;
      overflow: hidden;
    }
    #hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      pointer-events: none;
    }

    .hero-grid {
      display: flex;
      align-items: center;
      gap: 3rem;
      position: relative;
      z-index: 2;
    }
    .hero-left {
      flex: 1;
    }
    .hero-right {
      flex: 1;
      display: flex;
      justify-content: center;
    }

    .hero-title {
      font-size: 52px;
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: -1px;
      margin-bottom: 1.5rem;
      background: linear-gradient(to right, #fff, #e0e7ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-sub {
      font-size: 1.2rem;
      color: var(--text-dim);
      margin-bottom: 2rem;
      max-width: 500px;
    }
    .btn-group {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, #C8A951, #D4AF37);
      color: #0A1428;
      font-weight: 700;
      border-radius: var(--radius-pill);
      padding: 14px 36px;
      border: none;
      cursor: pointer;
      transition: var(--transition-smooth);
      font-size: 1rem;
      box-shadow: 0 8px 20px rgba(200,169,81,0.3);
    }
    .btn-primary:hover {
      transform: translateY(-4px);
      box-shadow: 0 15px 30px rgba(200,169,81,0.5);
    }
    .btn-outline {
      background: transparent;
      border: 2px solid var(--accent-gold);
      color: var(--accent-gold);
      font-weight: 600;
      border-radius: var(--radius-pill);
      padding: 14px 36px;
      cursor: pointer;
      transition: var(--transition-smooth);
    }
    .btn-outline:hover {
      background: rgba(200,169,81,0.1);
    }

    .live-card {
      background: rgba(26, 44, 69, 0.8);
      backdrop-filter: blur(10px);
      border-radius: var(--radius-lg);
      padding: 24px 30px;
      border: 1px solid var(--border-gold);
      box-shadow: var(--shadow-glow);
      width: 100%;
      max-width: 400px;
    }
    .live-header {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 20px;
    }
    .live-dot {
      width: 12px;
      height: 12px;
      background: #ff3333;
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 15px red;
      animation: pulse 1.5s infinite;
    }
    @keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.5; } 100% { opacity: 1; } }
    .matchup {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 15px 0;
    }
    .team {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
    }
    .team-logo {
      width: 50px;
      height: 50px;
      background: rgba(255,255,255,0.1);
      border-radius: 50%;
      background-image: url('/assets/images/coverpic/cover-2.webp');
      background-size: cover;
    }
    .score-big {
      font-size: 3rem;
      font-weight: 900;
      color: var(--accent-gold);
      font-family: var(--font-en);
    }

    /* 通用板块 */
    section {
      padding: 80px 0;
    }
    .section-title {
      font-size: 36px;
      font-weight: 700;
      margin-bottom: 1rem;
      position: relative;
      display: inline-block;
    }
    .section-title::after {
      content: '';
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 60px;
      height: 4px;
      background: var(--accent-gold);
      border-radius: 2px;
    }
    .text-center .section-title::after {
      left: 50%;
      transform: translateX(-50%);
    }

    /* Stats */
    #stats {
      background: var(--bg-dark-section);
    }
    .stats-grid {
      display: flex;
      justify-content: center;
      gap: 3rem;
      flex-wrap: wrap;
      text-align: center;
    }
    .stat-item {
      flex: 1;
      min-width: 180px;
    }
    .stat-number {
      font-size: 48px;
      font-weight: 900;
      color: var(--accent-gold);
      font-family: var(--font-en);
    }
    .stat-label {
      color: var(--text-dim);
      margin-top: 8px;
    }

    /* Services 不对称 */
    #services {
      background: var(--bg-light-section);
      color: #1e293b;
    }
    #services .section-title, #services h3 {
      color: #0A1428;
    }
    .services-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 24px;
    }
    .service-main {
      background: white;
      border-radius: var(--radius-md);
      padding: 32px;
      background-image: url('/assets/images/coverpic/cover-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      color: white;
      min-height: 320px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      border: 1px solid var(--border-subtle);
    }
    .service-main::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(0deg, rgba(10,20,40,0.85) 0%, transparent 60%);
      border-radius: var(--radius-md);
    }
    .service-main-content {
      position: relative;
      z-index: 2;
    }
    .service-side {
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .service-card {
      background: white;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-subtle);
      transition: var(--transition-smooth);
    }
    .service-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 30px rgba(0,0,0,0.1);
      border-color: var(--accent-gold);
    }

    /* Advantages 图文交错 */
    #advantages {
      background: var(--primary-deep);
    }
    .adv-row {
      display: flex;
      align-items: center;
      gap: 3rem;
      margin-bottom: 60px;
    }
    .adv-row.reverse {
      flex-direction: row-reverse;
    }
    .adv-text {
      flex: 1;
    }
    .adv-img {
      flex: 1;
      background: #1A2C45;
      border-radius: var(--radius-md);
      height: 280px;
      background-image: url('/assets/images/coverpic/cover-3.webp');
      background-size: cover;
      border: 1px solid var(--border-gold);
    }

    /* Cases */
    #cases {
      background: var(--bg-light-section);
    }
    .cases-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .case-card {
      background: white;
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      gap: 16px;
      align-items: center;
    }

    /* FAQ */
    #faq {
      background: var(--bg-dark-section);
    }
    .faq-item {
      border-bottom: 1px dashed var(--border-subtle);
      padding: 18px 0;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 600;
      color: white;
      display: flex;
      justify-content: space-between;
    }

    /* Contact */
    #contact {
      background: radial-gradient(circle at center, #1a2c45, #0A1428);
      text-align: center;
    }
    .contact-form {
      display: flex;
      max-width: 500px;
      margin: 2rem auto;
      gap: 12px;
    }
    .contact-form input {
      flex:1;
      background: #0A1428;
      border: 1px solid var(--accent-gold);
      border-radius: 50px;
      padding: 14px 20px;
      color: white;
    }
    
    footer {
      background: var(--footer-bg);
      border-top: 2px solid var(--accent-gold);
      padding: 40px 0 20px;
    }

    @media (max-width: 768px) {
      .nav-links { display: none; }
      .menu-toggle { display: block; }
      .hero-grid { flex-direction: column; }
      .hero-title { font-size: 36px; }
      .services-grid { grid-template-columns: 1fr; }
      .adv-row, .adv-row.reverse { flex-direction: column; }
      .cases-grid { grid-template-columns: 1fr; }
    }