/* roulang page: index */
:root {
      --primary: #1A3C34;
      --accent: #C95D4A;
      --bg-warm: #F7F5F0;
      --bg-dark: #1E2D2A;
      --text-main: #1A1A1A;
      --text-body: #3A3A3A;
      --text-muted: #6B6B6B;
      --highlight-yellow: #E8B33B;
      --white: #FFFFFF;
      --border-light: rgba(0, 0, 0, 0.06);
      --border-dark: rgba(255, 255, 255, 0.08);
      --shadow-sm: 0 4px 20px rgba(0, 0, 0, 0.04);
      --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-input: 8px;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
      --font-number: "Inter", "SF Pro Display", sans-serif;
      --transition: 0.2s ease;
      --container-max: 1280px;
    }

    * {
      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: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

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

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

    button, input, textarea {
      font-family: inherit;
    }

    /* 导航 */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      background: rgba(247, 245, 240, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: background 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

    .nav.scrolled {
      background: var(--bg-warm);
      box-shadow: 0 2px 12px rgba(0,0,0,0.04);
      border-bottom: 1px solid var(--border-light);
    }

    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 20px;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1.5rem;
      letter-spacing: -0.3px;
      color: var(--primary);
    }

    .logo-icon {
      width: 32px;
      height: 32px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 32px;
      list-style: none;
    }

    .nav-menu a {
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-main);
      position: relative;
      padding: 4px 0;
    }

    .nav-menu a::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--highlight-yellow);
      transition: width 0.25s ease;
    }

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

    .btn-nav {
      background: var(--accent);
      color: white;
      padding: 10px 22px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      font-size: 0.9rem;
      border: none;
      cursor: pointer;
      transition: background 0.2s ease;
    }

    .btn-nav:hover {
      background: #B04A3A;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: none;
      border: none;
      cursor: pointer;
    }

    .hamburger span {
      width: 24px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: 0.2s;
    }

    .mobile-menu {
      display: none;
      position: fixed;
      top: 68px;
      left: 0;
      width: 100%;
      background: var(--bg-warm);
      padding: 32px 20px;
      flex-direction: column;
      gap: 28px;
      border-bottom: 1px solid var(--border-light);
      z-index: 99;
    }

    .mobile-menu a {
      font-size: 1.25rem;
      font-weight: 500;
      color: var(--primary);
    }

    @media (max-width: 768px) {
      .nav-menu, .btn-nav.desktop-cta {
        display: none;
      }
      .hamburger {
        display: flex;
      }
      .mobile-menu.active {
        display: flex;
      }
    }

    /* 通用板块 */
    section {
      padding: 80px 0;
    }

    .section-title {
      font-size: 2.2rem;
      font-weight: 600;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 12px;
    }

    .section-subtitle {
      font-size: 1.1rem;
      color: var(--text-muted);
      margin-bottom: 48px;
      max-width: 600px;
    }

    @media (min-width: 1024px) {
      .section-title {
        font-size: 2.8rem;
      }
    }

    /* Hero */
    .hero {
      padding: 120px 0 80px;
      background: var(--bg-warm);
    }

    .hero-grid {
      display: flex;
      align-items: center;
      gap: 48px;
    }

    .hero-text {
      flex: 1 1 45%;
    }

    .hero-image {
      flex: 1 1 55%;
      position: relative;
    }

    .hero-image img {
      border-radius: 20px;
      box-shadow: var(--shadow-md);
      width: 100%;
      object-fit: cover;
    }

    .hero-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(26,60,52,0.35), rgba(26,60,52,0.05));
      border-radius: 20px;
    }

    .hero h1 {
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.2;
      letter-spacing: -0.5px;
    }

    .hero-sub {
      font-size: 1.15rem;
      color: var(--text-muted);
      margin: 20px 0 24px;
    }

    .hero-tags {
      display: flex;
      gap: 24px;
      margin-bottom: 32px;
      color: var(--primary);
      font-weight: 500;
    }

    .btn-primary {
      background: var(--accent);
      color: white;
      padding: 14px 36px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      display: inline-block;
      border: none;
      cursor: pointer;
      transition: background 0.2s;
    }

    .btn-primary:hover {
      background: #B04A3A;
    }

    @media (max-width: 768px) {
      .hero-grid {
        flex-direction: column-reverse;
      }
      .hero h1 {
        font-size: 2.2rem;
      }
      .hero-image::after {
        background: linear-gradient(to bottom, rgba(26,60,52,0.3), transparent);
      }
    }

    /* 亮点网格 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
    }

    .feature-card {
      padding: 24px 0;
      border-bottom: 1px solid var(--border-light);
      transition: 0.25s ease;
      position: relative;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-left: 4px solid var(--accent);
      padding-left: 20px;
    }

    .feature-icon {
      color: var(--highlight-yellow);
      font-size: 1.8rem;
      margin-bottom: 16px;
    }

    .feature-card h3 {
      font-size: 1.4rem;
      font-weight: 600;
      color: var(--text-main);
    }

    @media (max-width: 1024px) {
      .features-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .features-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 赛程瀑布 */
    .schedule-masonry {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }

    .match-card {
      background: white;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: 0.25s;
    }

    .match-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
    }

    .match-img {
      background: #e0dcd5;
      height: 180px;
      background-size: cover;
      background-position: center;
    }

    .match-info {
      padding: 20px;
    }

    .match-date {
      font-family: var(--font-number);
      color: var(--accent);
      font-weight: 600;
      font-size: 0.9rem;
    }

    .match-teams {
      font-weight: 700;
      font-size: 1.2rem;
      margin: 6px 0;
    }

    @media (max-width: 1024px) {
      .schedule-masonry {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 640px) {
      .schedule-masonry {
        grid-template-columns: 1fr;
      }
    }

    /* 对比表 */
    .compare-panel {
      display: flex;
      gap: 32px;
      align-items: stretch;
    }

    .plan-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 32px;
      flex: 1;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      position: relative;
    }

    .plan-featured {
      border: 2px solid var(--primary);
      background: #f4f9f7;
    }

    .badge {
      background: var(--highlight-yellow);
      color: #1A1A1A;
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      display: inline-block;
      margin-bottom: 16px;
    }

    .plan-row {
      display: flex;
      justify-content: space-between;
      padding: 14px 0;
      border-bottom: 1px solid var(--border-light);
    }

    .btn-outline {
      border: 1px solid var(--primary);
      background: transparent;
      color: var(--primary);
      padding: 12px 28px;
      border-radius: var(--radius-btn);
      font-weight: 600;
      cursor: pointer;
    }

    .btn-outline:hover {
      background: var(--primary);
      color: white;
    }

    @media (max-width: 768px) {
      .compare-panel {
        flex-direction: column;
      }
    }

    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 20px 0;
      cursor: pointer;
    }

    .faq-question {
      display: flex;
      align-items: center;
      gap: 16px;
      font-weight: 600;
      font-size: 1.15rem;
    }

    .faq-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--highlight-yellow);
      transition: 0.2s;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
      padding-left: 26px;
      color: var(--text-body);
    }

    .faq-item.open .faq-dot {
      background: var(--accent);
    }

    /* 联系表单 */
    .contact-form {
      max-width: 600px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }

    .input-line {
      background: transparent;
      border: none;
      border-bottom: 1px solid #ccc;
      padding: 12px 0;
      font-size: 1rem;
      outline: none;
      transition: border 0.2s;
    }

    .input-line:focus {
      border-bottom: 2px solid var(--primary);
    }

    /* 页脚 */
    .footer {
      background: var(--bg-dark);
      color: rgba(255,255,255,0.8);
      padding: 60px 0 30px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
    }

    .footer a {
      color: rgba(255,255,255,0.7);
    }

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