/* roulang page: index */
:root {
      --primary: #0A4D2C;
      --primary-dark: #073D21;
      --secondary-bg: #E6F4EA;
      --accent: #FF4D00;
      --text-black: #1A1A1A;
      --text-white: #FFFFFF;
      --global-bg: #F8F9FA;
      --border-light: #E6F4EA;
      --shadow-card: 0 10px 30px -10px rgba(0,0,0,0.05);
      --radius-card: 16px;
      --radius-button: 50px;
      --font-display: 'Montserrat', -apple-system, sans-serif;
      --font-body: -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-body);
      background-color: var(--global-bg);
      color: var(--text-black);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }
    img {
      max-width: 100%;
      display: block;
      height: auto;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color 0.2s ease;
    }
    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: transparent;
    }
    /* 导航 */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      transition: background 0.3s ease, box-shadow 0.3s ease;
      background: transparent;
      padding: 16px 0;
    }
    .header.scrolled {
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(8px);
      box-shadow: 0 2px 15px rgba(0,0,0,0.04);
    }
    .header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .logo {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.8rem;
      letter-spacing: -0.5px;
      color: var(--text-white);
      transition: color 0.3s ease;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .header.scrolled .logo {
      color: var(--primary);
    }
    .logo i {
      font-size: 2rem;
      color: var(--accent);
    }
    .nav-links {
      display: flex;
      gap: 36px;
      align-items: center;
    }
    .nav-links a {
      font-weight: 500;
      font-size: 1rem;
      color: rgba(255,255,255,0.9);
      transition: color 0.2s;
      position: relative;
    }
    .header.scrolled .nav-links a {
      color: var(--text-black);
    }
    .nav-links a:hover {
      color: var(--accent);
    }
    .nav-cta {
      background: var(--accent);
      color: white !important;
      padding: 8px 22px;
      border-radius: var(--radius-button);
      font-weight: 600;
      transition: background 0.2s, transform 0.1s;
    }
    .nav-cta:hover {
      background: #e64500;
      transform: translateY(-1px);
    }
    .mobile-toggle {
      display: none;
      font-size: 1.8rem;
      color: white;
      background: none;
    }
    .header.scrolled .mobile-toggle {
      color: var(--primary);
    }
    /* 移动端底部导航 */
    .mobile-bottom-nav {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: white;
      box-shadow: 0 -4px 15px rgba(0,0,0,0.06);
      z-index: 110;
      padding: 10px 20px;
      justify-content: space-around;
      border-top: 1px solid var(--border-light);
    }
    .mobile-bottom-nav a {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 0.7rem;
      color: #6b7280;
      gap: 4px;
    }
    .mobile-bottom-nav i {
      font-size: 1.3rem;
    }
    /* Hero */
    .hero {
      min-height: 100vh;
      background: linear-gradient(135deg, #052B18 0%, #0A4D2C 80%);
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      background-blend-mode: overlay;
      display: flex;
      align-items: center;
      color: white;
      padding-top: 90px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
    }
    .hero-left h1 {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 3.8rem;
      line-height: 1.2;
      letter-spacing: -0.5px;
      margin-bottom: 24px;
    }
    .hero-sub {
      font-size: 1.25rem;
      opacity: 0.9;
      margin-bottom: 36px;
      max-width: 90%;
    }
    .hero-buttons {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
    }
    .btn-primary {
      background: var(--accent);
      color: white;
      padding: 16px 36px;
      border-radius: var(--radius-button);
      font-weight: 700;
      font-size: 1.1rem;
      transition: all 0.25s;
      box-shadow: 0 8px 18px rgba(255,77,0,0.35);
    }
    .btn-primary:hover {
      background: #e64500;
      transform: translateY(-3px);
      box-shadow: 0 14px 24px rgba(255,77,0,0.45);
    }
    .btn-ghost {
      border: 2px solid white;
      color: white;
      padding: 16px 36px;
      border-radius: var(--radius-button);
      font-weight: 700;
      font-size: 1.1rem;
      transition: all 0.25s;
    }
    .btn-ghost:hover {
      background: rgba(255,255,255,0.12);
      transform: translateY(-2px);
    }
    .hero-card {
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(18px);
      border-radius: 28px;
      padding: 28px;
      border: 1px solid rgba(255,255,255,0.15);
      transform: perspective(800px) rotateY(-4deg) rotateX(3deg);
      box-shadow: 0 30px 45px rgba(0,0,0,0.4);
    }
    .match-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 18px 0;
    }
    .team {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 600;
    }
    .score {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 2.4rem;
      color: var(--accent);
      background: rgba(0,0,0,0.3);
      padding: 4px 18px;
      border-radius: 40px;
    }
    .live-badge {
      background: var(--accent);
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.5px;
    }
    /* 区块通用 */
    section {
      padding: 100px 0;
    }
    .section-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 2.5rem;
      margin-bottom: 16px;
      color: var(--primary);
    }
    .section-sub {
      color: #4b5563;
      margin-bottom: 48px;
      font-size: 1.15rem;
    }
    /* 亮点网格 */
    .highlights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .data-card {
      background: white;
      border-radius: var(--radius-card);
      padding: 24px;
      border: 1px solid var(--border-light);
      box-shadow: var(--shadow-card);
      display: flex;
      align-items: center;
      gap: 18px;
      transition: all 0.2s;
    }
    .data-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(0,0,0,0.08);
    }
    .data-value {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 2rem;
      color: var(--primary);
    }
    .orange-text {
      color: var(--accent);
    }
    /* 专栏瀑布流 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
    .feature-card {
      background: white;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: 0.25s;
    }
    .feature-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 24px 40px -12px rgba(0,0,0,0.1);
    }
    .feature-card img {
      height: 240px;
      object-fit: cover;
      transition: 0.3s;
    }
    .feature-card:hover img {
      transform: scale(1.03);
    }
    .feature-text {
      padding: 22px;
    }
    .feature-text h3 {
      font-weight: 700;
      font-size: 1.4rem;
      margin-bottom: 10px;
    }
    /* 方案对比 */
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .plan-card {
      background: white;
      border-radius: 28px;
      padding: 32px 24px;
      border: 1px solid var(--border-light);
      text-align: center;
      transition: 0.2s;
    }
    .plan-highlight {
      border: 2px solid var(--primary);
      background: var(--secondary-bg);
      transform: scale(1.03);
    }
    .price {
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 2.6rem;
    }
    /* FAQ */
    .faq-item {
      border-bottom: 1px solid #e5e7eb;
      padding: 20px 0;
      cursor: pointer;
    }
    .faq-question {
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
      color: #4b5563;
    }
    .faq-item.active .faq-answer {
      max-height: 200px;
      padding-top: 12px;
    }
    .faq-item.active {
      border-left: 3px solid var(--primary);
      padding-left: 16px;
    }
    /* CTA */
    .cta-band {
      background: #052B18;
      color: white;
      text-align: center;
      padding: 90px 0;
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-blend-mode: soft-light;
    }
    /* 页脚 */
    .footer {
      background: #052B18;
      color: #ccc;
      padding: 50px 0 30px;
    }
    .footer a:hover { color: var(--accent); }
    @media (max-width: 1024px) {
      .hero-grid { grid-template-columns: 1fr; }
      .highlights-grid { grid-template-columns: repeat(2,1fr); }
    }
    @media (max-width: 768px) {
      .container { padding: 0 20px; }
      .desktop-nav { display: none; }
      .mobile-toggle { display: block; }
      .mobile-bottom-nav { display: flex; }
      .hero-left h1 { font-size: 2.8rem; }
      .highlights-grid, .plans-grid { grid-template-columns: 1fr; }
      .feature-grid { grid-template-columns: 1fr; }
      .header { background: rgba(5,43,24,0.9); }
      .header.scrolled { background: white; }
    }