:root {
      --bg: #0f0d16;
      --surface: #1a1726;
      --primary: #e63946;
      --primary-hover: #f25c68;
      --text-main: #f4f4f5;
      --text-muted: #a1a1aa;
      --border: #2d283b;
    }
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
    }
    a {
      text-decoration: none;
      color: inherit;
    }
    img {
      max-width: 100%;
      display: block;
      object-fit: cover;
    }
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* Header */
    header {
      background-color: rgba(15, 13, 22, 0.9);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 100;
    }
    .nav-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }
    .logo-group {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: bold;
      color: var(--text-main);
    }
    .logo-group img {
      height: 32px;
      width: auto;
    }
    .header-btn {
      background-color: var(--primary);
      color: white;
      padding: 8px 20px;
      border-radius: 20px;
      font-size: 14px;
      font-weight: 500;
      transition: background 0.3s;
    }
    .header-btn:hover {
      background-color: var(--primary-hover);
    }
    
    /* Hero Section */
    .hero {
      padding: 60px 0;
      display: flex;
      align-items: center;
      gap: 40px;
    }
    .hero-content {
      flex: 1;
    }
    .hero h1 {
      font-size: 42px;
      line-height: 1.2;
      margin-bottom: 20px;
      font-weight: 800;
    }
    .hero h1 span {
      color: var(--primary);
    }
    .hero p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 30px;
      max-width: 500px;
    }
    .cta-btn {
      display: inline-block;
      background-color: var(--primary);
      color: white;
      padding: 14px 32px;
      border-radius: 30px;
      font-size: 18px;
      font-weight: bold;
      transition: transform 0.2s, background 0.3s;
    }
    .cta-btn:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
    }
    .hero-img {
      flex: 1;
      position: relative;
    }
    .hero-img img {
      border-radius: 20px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.5);
      width: 100%;
      height: auto;
      max-height: 600px;
      object-position: top;
    }

    /* Section Common */
    section {
      padding: 60px 0;
    }
    .section-title {
      font-size: 28px;
      margin-bottom: 12px;
      text-align: center;
      font-weight: 700;
    }
    .section-desc {
      text-align: center;
      color: var(--text-muted);
      margin-bottom: 40px;
    }

    /* Grid */
    .grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 24px;
    }
    .card {
      background-color: var(--surface);
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border);
      transition: transform 0.3s;
    }
    .card:hover {
      transform: translateY(-5px);
    }
    .card-img {
      width: 100%;
      aspect-ratio: 3/4;
      object-fit: cover;
    }
    .card-body {
      padding: 16px;
    }
    .card-title {
      font-size: 18px;
      font-weight: bold;
      margin-bottom: 8px;
    }
    .card-text {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* Text Image Split */
    .split {
      display: flex;
      align-items: center;
      gap: 40px;
      margin-bottom: 60px;
    }
    .split.reverse {
      flex-direction: row-reverse;
    }
    .split-img {
      flex: 1;
      border-radius: 20px;
      overflow: hidden;
    }
    .split-img img {
      width: 100%;
      height: auto;
      aspect-ratio: 3/4;
      object-fit: cover;
    }
    .split-content {
      flex: 1;
    }
    .split-content h3 {
      font-size: 24px;
      margin-bottom: 16px;
    }
    .split-content p {
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    /* Reviews */
    .reviews {
      background-color: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }
    .review-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
    }
    .review-card {
      background-color: var(--bg);
      padding: 24px;
      border-radius: 16px;
      border: 1px solid var(--border);
    }
    .review-text {
      font-size: 15px;
      color: var(--text-main);
      margin-bottom: 16px;
      font-style: italic;
    }
    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .avatar {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background-color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }
    .user-name {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* Footer */
    footer {
      padding: 40px 0;
      border-top: 1px solid var(--border);
      text-align: center;
      color: var(--text-muted);
      font-size: 14px;
    }
    footer p {
      margin-bottom: 8px;
    }
    .update-time {
      font-size: 12px;
      color: #52525b;
      margin-top: 20px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero {
        flex-direction: column;
        text-align: center;
      }
      .hero p {
        margin: 0 auto 30px;
      }
      .split, .split.reverse {
        flex-direction: column;
      }
    }
    @media (max-width: 768px) {
      .hero h1 {
        font-size: 32px;
      }
      .section-title {
        font-size: 24px;
      }
      .header-btn {
        display: none;
      }
      .grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .card-body {
        padding: 12px;
      }
      .card-title {
        font-size: 16px;
      }
      .card-text {
        font-size: 12px;
      }
    }
    @media (max-width: 480px) {
      .grid {
        grid-template-columns: 1fr;
      }
    }