/* roulang page: index */
:root {
      --primary-deep-green: #0B3D2E;
      --accent-orange: #F15A24;
      --charcoal: #1E1E1E;
      --warm-white: #F9F6F0;
      --soft-gray: #F4F4F4;
      --text-dark: #333;
      --text-muted: #666;
      --border-light: #e0e0e0;
      --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
      --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
      --border-radius: 8px;
      --transition: all 0.2s ease;
      --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
      --container-max: 1200px;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--warm-white);
      color: var(--text-dark);
      line-height: 1.8;
      margin: 0;
      padding: 0;
      font-size: 16px;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
    }
    a:hover {
      color: var(--accent-orange);
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, .btn {
      font-family: inherit;
    }
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    /* 自定义按钮 */
    .btn-primary-custom {
      background-color: var(--accent-orange);
      border: none;
      color: white;
      padding: 12px 28px;
      border-radius: 6px;
      font-weight: 600;
      transition: var(--transition);
      box-shadow: 0 4px 10px rgba(241, 90, 36, 0.25);
      display: inline-block;
      text-align: center;
    }
    .btn-primary-custom:hover {
      background-color: #d04a1a;
      color: white;
      box-shadow: 0 6px 14px rgba(241, 90, 36, 0.4);
      transform: translateY(-1px);
    }
    .btn-outline-custom {
      background: transparent;
      border: 2px solid var(--primary-deep-green);
      color: var(--primary-deep-green);
      padding: 10px 26px;
      border-radius: 6px;
      font-weight: 600;
      transition: var(--transition);
    }
    .btn-outline-custom:hover {
      background-color: var(--primary-deep-green);
      color: white;
      border-color: var(--primary-deep-green);
    }
    /* 导航 */
    .navbar-custom {
      background: white;
      height: 64px;
      box-shadow: 0 1px 4px rgba(0,0,0,0.04);
      border-bottom: 1px solid var(--border-light);
      padding: 0 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      position: sticky;
      top: 0;
      z-index: 1020;
      width: 100%;
    }
    .logo {
      font-family: var(--font-heading);
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--primary-deep-green);
      display: flex;
      align-items: center;
      gap: 8px;
      letter-spacing: 1px;
    }
    .logo i {
      color: var(--accent-orange);
      font-size: 2rem;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 2rem;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .nav-links a {
      font-weight: 500;
      position: relative;
      padding: 8px 0;
      transition: color 0.2s;
      color: var(--text-dark);
    }
    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 3px;
      background: var(--accent-orange);
      transition: width 0.2s;
    }
    .nav-links a:hover::after,
    .nav-links a.active::after {
      width: 100%;
    }
    .mega-trigger {
      cursor: pointer;
      position: relative;
    }
    .mega-panel {
      position: absolute;
      top: 64px;
      left: 50%;
      transform: translateX(-50%);
      background: white;
      width: 700px;
      max-width: 90vw;
      box-shadow: var(--shadow-md);
      border-radius: 0 0 12px 12px;
      padding: 24px;
      display: none;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 24px;
      z-index: 1050;
      opacity: 0;
      transition: opacity 0.2s;
    }
    .mega-trigger:hover .mega-panel,
    .mega-panel.active {
      display: grid;
      opacity: 1;
    }
    .mega-col h5 {
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary-deep-green);
    }
    .tag-cloud span {
      display: inline-block;
      background: #f0f0f0;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      margin: 3px;
      cursor: default;
    }
    .mega-list li {
      list-style: none;
      margin-bottom: 8px;
      font-size: 0.9rem;
    }
    .burger {
      display: none;
      font-size: 1.8rem;
      background: none;
      border: none;
    }
    @media(max-width:768px) {
      .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: var(--shadow-md);
      }
      .nav-links.open {
        display: flex;
      }
      .burger {
        display: block;
      }
      .mega-panel {
        position: static;
        transform: none;
        width: 100%;
        grid-template-columns: 1fr;
        box-shadow: none;
        display: none;
      }
    }
    /* Hero */
    .hero-section {
      background: linear-gradient(135deg, rgba(11,61,46,0.85) 0%, #1E1E1E 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      padding: 80px 0;
      color: white;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .hero-text h1 {
      font-family: var(--font-heading);
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.2;
    }
    .hero-text .highlight {
      color: var(--accent-orange);
      font-weight: 800;
    }
    .hero-text p {
      font-size: 1.2rem;
      margin: 20px 0;
      opacity: 0.9;
    }
    .data-strip {
      display: flex;
      gap: 24px;
      margin-top: 24px;
      font-size: 0.9rem;
    }
    .hero-image img {
      border-radius: 12px;
      box-shadow: 0 12px 30px rgba(0,0,0,0.4);
    }
    @media(max-width:768px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero-text h1 {
        font-size: 2.2rem;
      }
    }
    /* 亮点网格 */
    .highlight-grid {
      display: grid;
      grid-template-columns: repeat(3,1fr);
      gap: 24px;
      margin: 60px 0;
    }
    .highlight-card {
      background: white;
      padding: 32px 20px;
      border-radius: var(--border-radius);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      text-align: left;
    }
    .highlight-card i {
      font-size: 2.5rem;
      color: #555;
      margin-bottom: 16px;
      transition: color 0.2s;
    }
    .highlight-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .highlight-card:hover i {
      color: var(--accent-orange);
    }
    @media(max-width:768px) {
      .highlight-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media(max-width:520px) {
      .highlight-grid {
        grid-template-columns: 1fr;
      }
    }
    /* 深度阅读 */
    .deep-read {
      margin: 60px 0;
    }
    .deep-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 24px;
      margin-bottom: 40px;
    }
    .deep-row.reverse {
      grid-template-columns: 1fr 2fr;
    }
    .cover-card {
      position: relative;
      border-radius: 8px;
      overflow: hidden;
    }
    .cover-card img {
      width: 100%;
      height: 260px;
      object-fit: cover;
    }
    .cover-card .card-text {
      position: absolute;
      bottom: 0;
      background: linear-gradient(transparent, rgba(0,0,0,0.8));
      color: white;
      padding: 24px;
      width: 100%;
    }
    .news-list {
      background: white;
      padding: 20px;
      border-radius: 8px;
    }
    @media(max-width:768px) {
      .deep-row, .deep-row.reverse {
        grid-template-columns: 1fr;
      }
    }
    /* 数据看板 */
    .dashboard {
      background: #0f2a22;
      padding: 60px 0;
      color: white;
    }
    .league-cards {
      display: grid;
      grid-template-columns: repeat(4,1fr);
      gap: 20px;
    }
    .league-item {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255,255,255,0.15);
      border-radius: 12px;
      padding: 24px;
    }
    .progress {
      height: 8px;
      background: rgba(255,255,255,0.2);
    }
    .progress-bar {
      background: var(--accent-orange);
    }
    @media(max-width:768px) {
      .league-cards {
        grid-template-columns: repeat(2,1fr);
      }
    }
    @media(max-width:520px) {
      .league-cards {
        grid-template-columns: 1fr;
      }
    }
    .faq-section {
      background: #eef3f0;
      padding: 60px 0;
    }
    .cta-banner {
      background: linear-gradient(135deg, #0B3D2E, #1E1E1E);
      padding: 80px 0;
    }
    footer {
      background: #1E1E1E;
      color: #ccc;
      padding: 50px 0 20px;
    }