:root {
        --primary: #ff5e7d;
        --secondary: #6c4ef2;
        --dark: #121212;
        --light: #ffffff;
        --card-bg: rgba(255, 255, 255, 0.08);
        --card-border: rgba(255, 255, 255, 0.12);
        --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        --menu-bg: rgba(18, 18, 18, 0.98);
      }

      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        -webkit-tap-highlight-color: transparent;
      }

      body {
        font-family: "Poppins", "Ma Shan Zheng", sans-serif;
        background: var(--dark);
        color: var(--light);
        line-height: 1.6;
        overflow-x: hidden;
        background: radial-gradient(circle at top, #1e1e2e 0%, #121212 100%);
        transition: var(--transition);
      }

      body.menu-open {
        overflow: hidden;
        height: 100vh;
      }

      /* 移动端专属头部 */
      .mobile-header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        padding: 15px 20px;
        background: rgba(18, 18, 18, 0.9);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        z-index: 100;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
      }

      .logo {
        display: flex;
        align-items: center;
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--light);
        text-decoration: none;
      }

      .logo-icon {
        width: 32px;
        height: 32px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 10px;
        color: white;
        font-size: 16px;
        box-shadow: 0 4px 15px rgba(255, 94, 125, 0.4);
      }

      .menu-btn {
        width: 40px;
        height: 40px;
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 18px;
        border: none;
        outline: none;
        z-index: 101;
        transition: var(--transition);
      }

      .menu-btn.active {
        background: var(--primary);
        transform: rotate(90deg);
      }

      /* 侧边菜单 */
      .mobile-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--menu-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        z-index: 99;
        padding: 80px 25px 30px;
        transition: var(--transition);
        overflow-y: auto;
        border-left: 1px solid rgba(255, 255, 255, 0.1);
      }

      .mobile-menu.open {
        right: 0;
      }

      .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(5px);
        z-index: 98;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
      }

      .menu-overlay.open {
        opacity: 1;
        visibility: visible;
      }

      .menu-header {
        font-size: 1.2rem;
        font-weight: 600;
        margin-bottom: 30px;
        color: var(--light);
        display: flex;
        align-items: center;
        padding-bottom: 15px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      }

      .menu-header i {
        margin-right: 10px;
        color: var(--primary);
      }

      .menu-list {
        list-style: none;
      }

      .menu-item {
        margin-bottom: 15px;
      }

      .menu-link {
        display: flex;
        align-items: center;
        padding: 12px 15px;
        border-radius: 12px;
        color: rgba(255, 255, 255, 0.8);
        text-decoration: none;
        transition: var(--transition);
        font-weight: 500;
      }

      .menu-link i {
        width: 30px;
        font-size: 18px;
        margin-right: 15px;
        color: var(--primary);
      }

      .menu-link.active,
      .menu-link:hover {
        background: rgba(255, 255, 255, 0.1);
        color: var(--light);
      }

      .menu-divider {
        height: 1px;
        background: rgba(255, 255, 255, 0.1);
        margin: 25px 0;
      }

      /* 页面内容 */
      .page {
        display: none;
        padding: 80px 20px 80px;
        min-height: 100vh;
      }

      .page.active {
        display: block;
        animation: fadeIn 0.5s ease;
      }

      @keyframes fadeIn {
        from {
          opacity: 0;
        }
        to {
          opacity: 1;
        }
      }

      /* 首页内容 */
      .hero-section {
        margin-bottom: 40px;
        position: relative;
        overflow: hidden;
        border-radius: 20px;
        padding: 30px 25px;
        background: linear-gradient(
          145deg,
          rgba(108, 78, 242, 0.15),
          rgba(255, 94, 125, 0.15)
        );
        border: 1px solid var(--card-border);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
      }

      .hero-title {
        font-size: 2.2rem;
        font-weight: 700;
        margin-bottom: 15px;
        background: linear-gradient(to right, var(--light), var(--secondary));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        line-height: 1.2;
      }

      .hero-subtitle {
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.8);
        margin-bottom: 25px;
        font-weight: 400;
      }

      /* 按钮组 */
      .btn-group {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-bottom: 30px;
      }

      .btn {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 16px 24px;
        border-radius: 14px;
        font-weight: 600;
        text-decoration: none;
        transition: var(--transition);
        font-size: 1rem;
        border: none;
        outline: none;
        width: 100%;
      }

      .btn-primary {
        background: linear-gradient(to right, var(--primary), var(--secondary));
        color: white;
        box-shadow: 0 8px 25px rgba(255, 94, 125, 0.4);
      }

      .btn-secondary {
        background: rgba(255, 255, 255, 0.1);
        color: white;
        border: 1px solid rgba(255, 255, 255, 0.2);
        backdrop-filter: blur(5px);
      }

      .btn i {
        margin-right: 10px;
        font-size: 18px;
      }

      /* 统计卡片 */
      .stats-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
      }

      .stat-card {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 20px;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transition: var(--transition);
      }

      .stat-icon {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 15px;
        background: linear-gradient(
          135deg,
          rgba(255, 94, 125, 0.2),
          rgba(108, 78, 242, 0.2)
        );
        color: var(--primary);
        font-size: 20px;
      }

      .stat-value {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 5px;
        background: linear-gradient(to right, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
      }

      .stat-label {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.7);
        font-weight: 400;
      }

      /* 其他页面内容 */
      .page-title {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 25px;
        color: white;
        display: flex;
        align-items: center;
      }

      .page-title i {
        margin-right: 12px;
        color: var(--primary);
      }

      .download-list {
        list-style: none;
      }

      .download-item {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 20px;
        margin-bottom: 15px;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
      }

      .download-title {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 10px;
        color: white;
        display: flex;
        align-items: center;
      }

      .download-title i {
        margin-right: 10px;
        color: var(--primary);
      }

      .download-desc {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 15px;
        line-height: 1.5;
      }

      .download-meta {
        display: flex;
        justify-content: space-between;
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.5);
      }

      /* 配置页面 */
      .config-card {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 20px;
        margin-bottom: 20px;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
      }

      .config-header {
        display: flex;
        align-items: center;
        margin-bottom: 15px;
      }

      .config-icon {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: linear-gradient(
          135deg,
          rgba(255, 94, 125, 0.2),
          rgba(108, 78, 242, 0.2)
        );
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 15px;
        color: var(--primary);
        font-size: 18px;
      }

      .config-title {
        font-size: 1.1rem;
        font-weight: 600;
        color: white;
      }

      .config-desc {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.7);
        margin-bottom: 15px;
        line-height: 1.5;
      }

      .toggle-switch {
        position: relative;
        display: inline-block;
        width: 50px;
        height: 26px;
      }

      .toggle-switch input {
        opacity: 0;
        width: 0;
        height: 0;
      }

      .toggle-slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(255, 255, 255, 0.1);
        transition: 0.4s;
        border-radius: 34px;
      }

      .toggle-slider:before {
        position: absolute;
        content: "";
        height: 20px;
        width: 20px;
        left: 3px;
        bottom: 3px;
        background-color: white;
        transition: 0.4s;
        border-radius: 50%;
      }

      input:checked + .toggle-slider {
        background: linear-gradient(to right, var(--primary), var(--secondary));
      }

      input:checked + .toggle-slider:before {
        transform: translateX(24px);
      }

      /* 个人中心 */
      .profile-header {
        display: flex;
        align-items: center;
        margin-bottom: 30px;
      }

      .profile-avatar {
        width: 70px;
        height: 70px;
        border-radius: 20px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 20px;
        color: white;
        font-size: 30px;
      }

      .profile-info h2 {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 5px;
        color: white;
      }

      .profile-info p {
        font-size: 0.9rem;
        color: rgba(255, 255, 255, 0.7);
      }

      .profile-stats {
        display: flex;
        margin-bottom: 30px;
      }

      .profile-stat {
        flex: 1;
        text-align: center;
      }

      .profile-stat-value {
        font-size: 1.3rem;
        font-weight: 700;
        margin-bottom: 5px;
        color: white;
      }

      .profile-stat-label {
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.6);
      }

      /* 底部导航 */
      .bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: rgba(18, 18, 18, 0.9);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 12px 0;
        display: flex;
        justify-content: space-around;
        z-index: 90;
      }

      .nav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-decoration: none;
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.7rem;
        transition: var(--transition);
      }

      .nav-item i {
        font-size: 1.2rem;
        margin-bottom: 5px;
      }

      .nav-item.active {
        color: var(--primary);
      }

      /* 响应式调整 */
      @media (min-width: 480px) {
        .page {
          padding: 90px 25px 80px;
        }

        .stats-grid {
          grid-template-columns: 1fr 1fr;
        }
      }

      @media (min-width: 768px) {
        .page {
          max-width: 600px;
          margin: 0 auto;
        }
      }