/* roulang page: index */
/* ===== 设计系统变量 ===== */
    :root {
      --bg-deep: #0B0C10;
      --gold: #C8A951;
      --energy: #7B61FF;
      --card-bg: rgba(26, 27, 35, 0.7);
      --glass-blur: blur(16px);
      --text-primary: #FFFFFF;
      --text-body: #B0B5C9;
      --text-muted: #6B7084;
      --border-gold: rgba(200, 169, 81, 0.2);
      --border-gold-strong: rgba(200, 169, 81, 0.5);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-input: 6px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
      --font-mono: 'Roboto Mono', 'DIN Alternate', monospace;
      --font-sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

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

    body {
      background-color: var(--bg-deep);
      color: var(--text-body);
      font-family: var(--font-sans);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 背景微纹理（召唤师峡谷线稿） */
    body::before {
      content: "";
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200" opacity="0.03"><path d="M20 60 L180 60 M60 20 L60 180 M100 40 L100 160 M140 70 L140 130 M40 100 L160 100" stroke="%23C8A951" fill="none" stroke-width="1"/></svg>');
      pointer-events: none;
      z-index: 0;
    }

    /* ===== 导航 ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(11, 12, 16, 0.88);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-gold);
      z-index: 100;
      transition: background 0.3s;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 70px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 1.4rem;
      font-weight: 700;
      color: var(--gold);
      text-decoration: none;
      letter-spacing: 1px;
    }

    .logo i {
      font-size: 1.6rem;
      color: var(--gold);
    }

    .nav-menu {
      display: flex;
      gap: 2rem;
      list-style: none;
    }

    .nav-menu a {
      color: var(--text-body);
      text-decoration: none;
      font-weight: 500;
      position: relative;
      padding: 6px 0;
      transition: color 0.2s;
    }

    .nav-menu a::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 2px;
      background: var(--gold);
      transition: width 0.25s ease;
    }

    .nav-menu a:hover {
      color: var(--gold);
    }

    .nav-menu a:hover::after {
      width: 100%;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 6px;
      background: none;
      border: none;
      cursor: pointer;
      padding: 8px;
    }

    .hamburger span {
      display: block;
      width: 26px;
      height: 2px;
      background: var(--gold);
      border-radius: 4px;
      transition: all 0.3s;
    }

    @media (max-width: 768px) {
      .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-deep);
        flex-direction: column;
        padding: 2rem;
        gap: 1.8rem;
        display: none;
        border-bottom: 1px solid var(--border-gold);
      }
      .nav-menu.active {
        display: flex;
      }
      .hamburger {
        display: flex;
      }
      .nav-menu a {
        font-size: 1.1rem;
      }
    }

    /* ===== 板块通用 ===== */
    section {
      position: relative;
      z-index: 1;
      padding: 80px 0;
    }

    .section-title {
      font-size: 2rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 1rem;
      text-align: center;
    }

    .section-subtitle {
      color: var(--text-body);
      text-align: center;
      max-width: 700px;
      margin: 0 auto 3rem auto;
      font-size: 1.1rem;
    }

    /* ===== 卡片玻璃拟态 ===== */
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: var(--glass-blur);
      -webkit-backdrop-filter: var(--glass-blur);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
      padding: 24px;
      transition: transform 0.25s, border-color 0.25s, background 0.3s;
    }

    .glass-card:hover {
      border-color: var(--border-gold-strong);
      background: rgba(26, 27, 35, 0.85);
      transform: translateY(-4px);
    }

    /* 按钮 */
    .btn-primary {
      background: var(--energy);
      color: white;
      border: none;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s ease;
      display: inline-block;
      text-decoration: none;
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #7B61FF, #C8A951);
      box-shadow: 0 0 24px rgba(123, 97, 255, 0.6);
      transform: scale(1.03);
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--gold);
      color: var(--gold);
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      cursor: pointer;
      transition: all 0.25s;
      text-decoration: none;
      display: inline-block;
    }

    .btn-outline:hover {
      background: linear-gradient(135deg, #7B61FF, #C8A951);
      color: white;
      border-color: transparent;
    }

    /* ===== Hero ===== */
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 3rem;
      align-items: center;
    }

    .hero-left h1 {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--text-primary);
      line-height: 1.3;
      margin-bottom: 1.5rem;
    }

    .hero-left .subtitle {
      font-size: 1.2rem;
      color: var(--text-body);
      margin-bottom: 2rem;
    }

    .hero-buttons {
      display: flex;
      gap: 1.2rem;
      flex-wrap: wrap;
    }

    .hero-right img {
      width: 100%;
      border-radius: var(--radius-card);
      border: 1px solid var(--border-gold);
      box-shadow: var(--shadow-card);
    }

    @media (max-width: 768px) {
      .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
      }
      .hero-left h1 {
        font-size: 2rem;
      }
      .hero-buttons {
        justify-content: center;
      }
    }

    /* ===== 实时看板 ===== */
    .live-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--gold);
      font-weight: 600;
      margin-bottom: 0.5rem;
    }

    .live-dot {
      width: 10px;
      height: 10px;
      background: var(--gold);
      border-radius: 50%;
      animation: pulse-gold 1.4s infinite;
    }

    @keyframes pulse-gold {
      0% { opacity: 1; box-shadow: 0 0 0 0 rgba(200,169,81,0.7); }
      70% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(200,169,81,0); }
      100% { opacity: 1; }
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 2rem;
    }

    .stat-card {
      text-align: center;
    }

    .team-names {
      font-weight: 600;
      color: var(--text-primary);
      margin: 0.8rem 0 0.4rem;
    }

    .score-number {
      font-family: var(--font-mono);
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--gold);
      letter-spacing: 4px;
    }

    .progress-bar {
      height: 4px;
      background: rgba(255,255,255,0.1);
      border-radius: 4px;
      margin: 1rem 0;
      overflow: hidden;
    }

    .progress-fill {
      width: 65%;
      height: 100%;
      background: var(--energy);
      border-radius: 4px;
    }

    @media (max-width: 1024px) {
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 520px) {
      .stats-grid { grid-template-columns: 1fr; }
    }

    /* 服务网格 */
    .services-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      margin-top: 2rem;
    }

    .service-icon {
      font-size: 2rem;
      color: var(--energy);
      margin-bottom: 1rem;
    }

    @media (max-width: 768px) {
      .services-grid { grid-template-columns: 1fr; }
    }

    /* 历史对比 */
    .compare-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 24px;
      margin-top: 2rem;
    }

    .compare-table {
      width: 100%;
      border-collapse: collapse;
    }

    .compare-table th {
      background: #0B0C10;
      color: var(--gold);
      padding: 12px;
      text-align: left;
    }

    .compare-table td {
      padding: 12px;
      border-bottom: 1px solid var(--border-gold);
    }

    @media (max-width: 768px) {
      .compare-wrapper { grid-template-columns: 1fr; }
    }

    /* FAQ */
    .faq-item {
      background: #1A1B23;
      border-left: 3px solid var(--gold);
      margin-bottom: 8px;
      border-radius: 0 var(--radius-card) var(--radius-card) 0;
    }

    .faq-question {
      padding: 16px;
      font-weight: 600;
      color: white;
      cursor: pointer;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      background: rgba(26,27,35,0.5);
      color: var(--text-body);
    }

    .faq-answer.open {
      max-height: 200px;
      padding: 16px;
      border-top: 1px solid var(--border-gold);
    }

    /* 表单 */
    .cta-form {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: center;
      margin-top: 2rem;
    }

    .cta-form input {
      background: rgba(26,27,35,0.8);
      border: 1px solid var(--border-gold);
      padding: 14px;
      border-radius: var(--radius-input);
      color: white;
      flex: 1 1 200px;
    }

    .cta-form input:focus {
      border-color: var(--energy);
      outline: none;
      box-shadow: 0 0 10px rgba(123,97,255,0.4);
    }

    footer {
      background: #0B0C10;
      border-top: 1px solid var(--border-gold);
      padding: 3rem 0 2rem;
      margin-top: 3rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 30px;
    }

    @media (max-width: 768px) {
      .footer-grid { grid-template-columns: 1fr; }
    }