:root {
      --primary-color: rgb(126, 34, 206);
      --primary-hover: rgb(109, 28, 181);
      --primary-light: rgba(126, 34, 206, 0.08);
      --text-main: #1e1b4b;
      --text-muted: #64748b;
      --bg-main: #faf8fc;
      --bg-card: #ffffff;
      --border-color: #f3e8ff;
      --max-width: 1200px;
      --shadow-sm: 0 1px 3px rgba(126, 34, 206, 0.05);
      --shadow-md: 0 4px 12px rgba(126, 34, 206, 0.08);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

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

    
    .site-header {
      background-color: var(--bg-card);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: var(--shadow-sm);
    }

    .header-container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
      height: 70px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .logo img {
      display: block;
      height: 40px;
      width: auto;
      max-width: 160px;
      object-fit: contain;
      flex-shrink: 0;
    }

    .logo span {
      display: inline-block;
      font-size: 20px;
      font-weight: 800;
      line-height: 1;
      color: var(--primary-color);
      white-space: nowrap;
    }

    .desktop-nav {
      display: flex;
      gap: 24px;
      align-items: center;
    }

    .desktop-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-main);
      padding: 8px 12px;
      border-radius: 6px;
    }

    .desktop-nav a:hover {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }

    .drawer-trigger {
      display: none;
      background: none;
      border: none;
      color: var(--text-main);
      cursor: pointer;
      padding: 8px;
    }

    
    .drawer-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.4);
      z-index: 200;
      opacity: 0;
      visibility: hidden;
      transition: var(--transition);
    }

    .drawer-overlay.active {
      opacity: 1;
      visibility: visible;
    }

    .drawer-menu {
      position: fixed;
      top: 0;
      left: -280px;
      width: 280px;
      height: 100%;
      background: var(--bg-card);
      z-index: 201;
      box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
      transition: var(--transition);
      display: flex;
      flex-direction: column;
    }

    .drawer-menu.active {
      left: 0;
    }

    .drawer-header {
      padding: 20px;
      border-bottom: 1px solid var(--border-color);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .drawer-close {
      background: none;
      border: none;
      font-size: 28px;
      cursor: pointer;
      color: var(--text-muted);
    }

    .drawer-nav {
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 16px;
      overflow-y: auto;
    }

    .drawer-nav a {
      font-size: 16px;
      font-weight: 500;
      padding: 10px 14px;
      border-radius: 8px;
    }

    .drawer-nav a:hover {
      color: var(--primary-color);
      background-color: var(--primary-light);
    }

    
    .breadcrumbs-bar {
      max-width: var(--max-width);
      margin: 20px auto 0;
      padding: 0 20px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .breadcrumbs-bar a:hover {
      color: var(--primary-color);
    }

    
    .content-hero {
      background: linear-gradient(135deg, var(--primary-light) 0%, rgba(255,255,255,1) 100%);
      padding: 50px 20px;
      border-bottom: 1px solid var(--border-color);
      text-align: center;
    }

    .content-hero-container {
      max-width: 800px;
      margin: 0 auto;
    }

    .content-hero h1 {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 15px;
    }

    .content-hero p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    
    .main-wrapper {
      max-width: var(--max-width);
      margin: 40px auto 60px;
      padding: 0 20px;
    }

    
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 50px;
    }

    .about-text {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .about-text h2 {
      font-size: 24px;
      color: var(--text-main);
      font-weight: 700;
      border-left: 4px solid var(--primary-color);
      padding-left: 12px;
    }

    .about-text p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    .about-image {
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-md);
      height: 350px;
    }

    .about-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    
    .values-title {
      font-size: 24px;
      font-weight: 700;
      color: var(--text-main);
      text-align: center;
      margin-bottom: 40px;
    }

    .values-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
      margin-bottom: 50px;
    }

    .value-card {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 12px;
      padding: 30px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .value-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .value-icon {
      width: 60px;
      height: 60px;
      background-color: var(--primary-light);
      color: var(--primary-color);
      border-radius: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 20px;
    }

    .value-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .value-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    
    .timeline-container {
      background-color: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 40px;
      box-shadow: var(--shadow-sm);
    }

    .timeline-title {
      font-size: 22px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 30px;
      text-align: center;
    }

    .timeline {
      display: flex;
      flex-direction: column;
      gap: 24px;
      position: relative;
    }

    .timeline::before {
      content: '';
      position: absolute;
      left: 20px;
      top: 10px;
      bottom: 10px;
      width: 2px;
      background-color: var(--border-color);
    }

    .timeline-item {
      position: relative;
      padding-left: 50px;
    }

    .timeline-dot {
      position: absolute;
      left: 12px;
      top: 6px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background-color: var(--primary-color);
      border: 4px solid var(--bg-card);
      box-shadow: 0 0 0 2px var(--primary-color);
    }

    .timeline-date {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary-color);
      margin-bottom: 4px;
    }

    .timeline-content h4 {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .timeline-content p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    
    .site-footer {
      background-color: #1e1b4b;
      color: #94a3b8;
      border-top: 1px solid #334155;
      font-size: 14px;
    }

    .footer-container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 60px 20px 40px;
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
    }

    .footer-brand-section {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .footer-brand-section .logo span {
      color: #fff;
    }

    .brand-desc {
      line-height: 1.7;
      font-size: 13px;
    }

    .footer-section-title {
      color: #f8fafc;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-links a {
      color: #94a3b8;
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-bottom {
      border-top: 1px solid #334155;
      padding: 30px 20px;
      max-width: var(--max-width);
      margin: 0 auto;
    }

    .friend-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 20px;
    }

    .friend-title {
      font-size: 14px;
      font-weight: 700;
      color: #f8fafc;
    }

    .friend-content {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .friend-content a {
      color: #94a3b8;
      font-size: 13px;
    }

    .friend-content a:hover {
      color: #fff;
    }

    .copyright-area {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      flex-wrap: wrap;
      gap: 15px;
    }

    
    @media (max-width: 992px) {
      .about-grid {
        grid-template-columns: 1fr;
      }
      .values-grid {
        grid-template-columns: 1fr;
      }
      .footer-container {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .desktop-nav {
        display: none;
      }
      .drawer-trigger {
        display: block;
      }
      .footer-container {
        grid-template-columns: 1fr;
      }
      .copyright-area {
        flex-direction: column;
        text-align: center;
      }
    }