body {
      margin: 0;
      padding: 0;
      height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
      overflow: hidden;
      background: linear-gradient(135deg, #a8edea, #fed6e3);
      position: relative;
    }

    /* 水泡背景 */
    .bubbles {
      position: absolute;
      width: 100%;
      height: 100%;
      top: 0; left: 0;
      overflow: hidden;
      z-index: 0;
      pointer-events: none;
    }
    .bubble {
      position: absolute;
      bottom: -60px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.7), rgba(255,255,255,0.2));
      box-shadow: 0 0 10px rgba(255,255,255,0.4);
      animation: rise linear infinite;
    }
    @keyframes rise {
      0%   { transform: translateY(0) scale(1); opacity: 0.8; }
      50%  { opacity: 0.4; }
      100% { transform: translateY(-120vh) scale(1.3); opacity: 0; }
    }

    /* 头像 */
    .avatar {
      width: 140px;
      height: 140px;
      border-radius: 50%;
      overflow: hidden;
      border: 4px solid rgba(255,255,255,0.7);
      box-shadow: 0 4px 15px rgba(0,0,0,0.15);
      margin-bottom: 30px;
      z-index: 1;
      position: relative;
    }
    .avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    /* 按钮通用样式 */
    .btn {
      padding: 14px 36px;
      font-size: 16px;
      font-weight: bold;
      color: #fff;
      text-decoration: none;
      position: relative;
      overflow: hidden;
      border-radius: 50px;
      box-shadow: 0 4px 20px rgba(0,0,0,0.15);
      transition: transform 0.3s ease;
      text-align: center;
      cursor: pointer;
      display: inline-block; /* 关键：使用 inline-block */
      margin: 0 10px 15px 10px; /* 使用 margin 控制间距 */
    }
    /* 特定按钮颜色 */
    .btn.left  { background: rgba(0, 172, 193, 0.85); border: 2px solid rgba(255,255,255,0.6); } /* 青色 */
    .btn.right { background: rgba(255, 140, 0, 0.85); border: 2px solid rgba(255,255,255,0.6); } /* 橙色 */
    .btn.flm { background: rgba(123, 31, 162, 0.85); border: 2px solid rgba(255,255,255,0.6); } /* 紫色 */
    /* 新增按钮颜色 */
    .btn.policy { background: rgba(52, 152, 219, 0.85); border: 2px solid rgba(255,255,255,0.6); } /* 蓝色 */


    /* 按钮悬停效果 */
    .btn::before {
      content: "";
      position: absolute;
      top: -50%; left: -50%;
      width: 200%; height: 200%;
      background: linear-gradient(120deg, rgba(255,255,255,0.1), rgba(255,255,255,0.4), rgba(255,255,255,0.1));
      transform: rotate(25deg);
      opacity: 0;
      transition: all 0.6s ease;
    }
    .btn:hover {
      transform: translateY(-4px) scale(1.05);
    }
    .btn:hover::before {
      left: -30%;
      opacity: 1;
      animation: shimmer 1.2s linear forwards;
    }
    @keyframes shimmer {
      0%   { transform: translateX(-100%) rotate(25deg); }
      100% { transform: translateX(100%) rotate(25deg); }
    }

    /* 按钮涟漪效果 */
    .ripple {
      position: absolute;
      border-radius: 50%;
      background-color: rgba(255, 255, 255, 0.7);
      transform: scale(0);
      animation: ripple-animation 0.6s linear;
      pointer-events: none;
    }
    @keyframes ripple-animation {
      to {
        transform: scale(4);
        opacity: 0;
      }
    }

    /* 按钮下方文字 */
    .worktime {
      font-size: 16px;
      text-align: center;
      max-width: 90%;
      margin-top: 15px;
      z-index: 1;
      position: relative;
      cursor: default;
    }
    .worktime:hover {
        cursor: pointer;
    }
    .worktime > div {
      display: block;
      opacity: 0;
      animation: textFade 0.8s forwards;
      margin-bottom: 0.5em;
      position: relative;
      transition: transform 0.3s ease, font-size 0.3s ease;
    }
    @keyframes textFade {
      0%   { opacity: 0; transform: translateY(10px); }
      100% { opacity: 1; transform: translateY(0); }
    }
    .worktime > div:nth-child(1){ animation-delay:0.2s; }
    .worktime > div:nth-child(2){ animation-delay:0.7s; }
    .worktime > div:nth-child(3){ animation-delay:1.2s; }
    .worktime > div:nth-child(4){ animation-delay:1.7s; }
    .worktime > div:nth-child(5){ animation-delay:2.2s; }

    .line1 { color: #4A90E2; animation: glow-blue 4s ease-in-out infinite alternate; }
    .line2 { color: #50C878; animation: glow-green 4s ease-in-out infinite alternate; }
    .line3 { color: #F5A623; animation: glow-orange 4s ease-in-out infinite alternate; }
    .line4 { color: #D65DB1; font-weight: bold; animation: glow-pink 4s ease-in-out infinite alternate; }
    .line5 { color: #7D5BA6; animation: glow-purple 4s ease-in-out infinite alternate; }

    @keyframes glow-blue {
      0%   { text-shadow: 0 0 4px rgba(74, 144, 226, 0.2); transform: scale(1); }
      100% { text-shadow: 0 0 12px rgba(74, 144, 226, 0.5); transform: scale(1.02); }
    }
    @keyframes glow-green {
      0%   { text-shadow: 0 0 4px rgba(80, 200, 120, 0.2); transform: scale(1); }
      100% { text-shadow: 0 0 12px rgba(80, 200, 120, 0.5); transform: scale(1.02); }
    }
    @keyframes glow-orange {
      0%   { text-shadow: 0 0 4px rgba(245, 166, 35, 0.2); transform: scale(1); }
      100% { text-shadow: 0 0 12px rgba(245, 166, 35, 0.5); transform: scale(1.02); }
    }
    @keyframes glow-pink {
      0%   { text-shadow: 0 0 4px rgba(214, 93, 177, 0.2); transform: scale(1); }
      100% { text-shadow: 0 0 12px rgba(214, 93, 177, 0.5); transform: scale(1.02); }
    }
    @keyframes glow-purple {
      0%   { text-shadow: 0 0 4px rgba(125, 91, 166, 0.2); transform: scale(1); }
      100% { text-shadow: 0 0 12px rgba(125, 91, 166, 0.5); transform: scale(1.02); }
    }

    /* 页脚版权 */
    .copyright {
      font-size: 12px;
      color: rgba(0,0,0,0.6);
      text-align: center;
      position: fixed;
      bottom: 10px;
      width: 100%;
      z-index: 99;
      background: transparent;
    }

    .copyright a {
      text-decoration: none;
      color: inherit;
    }

    /* 自定义光标 */
    .cursor {
      width: 12px;
      height: 12px;
      position: fixed;
      border-radius: 50%;
      background: rgba(255,255,255,0.8);
      pointer-events: none;
      transform: translate(-50%, -50%);
      transition: transform 0.15s ease;
      z-index: 9999;
    }

    /* 桌面端 - 原有按钮组容器样式 */
    .nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        margin-top: 20px;
        z-index: 1;
        position: relative;
        opacity: 0;
        transform: translateY(40px);
        animation: fadeUp 1s ease forwards 0.3s;
    }
    /* 桌面端 - 原有按钮样式调整 */
    .nav .btn {
        flex: 0 0 auto; /* 关键：不伸缩，基于设置的 width */
        width: 250px;
        min-width: unset;
        max-width: 90vw;
    }

    /* 桌面端 - 新增按钮容器样式 */
    .nav-policy {
        display: flex;
        justify-content: center;
        width: 100%;
        margin-top: 20px; /* 与 .nav 保持一致的间距 */
        z-index: 1;
        position: relative;
        opacity: 0;
        transform: translateY(40px);
        animation: fadeUp 1s ease forwards 0.45s; /* 出现在 .nav 和 .nav-flm 之间 */
    }
    /* 桌面端 - 新增按钮样式调整 */
    .nav-policy .btn.policy {
        flex: 0 0 auto;
        width: 250px;
        min-width: unset;
        max-width: 90vw;
        padding: 14px 20px; /* 调整内边距 */
    }

    /* 桌面端 - 飞利猫按钮容器样式 */
    .nav-flm {
        display: flex;
        justify-content: center;
        width: 100%;
        margin-top: 20px; /* 与 .nav 保持一致的间距 */
        z-index: 1;
        position: relative;
        opacity: 0;
        transform: translateY(40px);
        animation: fadeUp 1s ease forwards 0.6s; /* 稍晚一点出现 */
    }
    /* 桌面端 - 飞利猫按钮样式调整 */
    .nav-flm .btn.flm {
        flex: 0 0 auto;
        width: 250px;
        min-width: unset;
        max-width: 90vw;
        padding: 14px 20px; /* 调整内边距 */
    }

    /* 移动端 */
    @media (max-width: 600px) {
      .avatar { width: 100px; height: 100px; margin-bottom: 20px; }

      /* 移动端 - 原有按钮组容器 */
      .nav {
        flex-direction: column;
        align-items: center;
        margin-top: 15px;
      }
      /* 移动端 - 原有按钮样式调整 */
      .nav .btn {
        width: 80%;
        max-width: 300px;
        font-size: 15px;
        padding: 12px 0;
        margin: 0 0 15px 0; /* 垂直排列时的间距 */
      }

      /* 移动端 - 新增按钮容器 */
      .nav-policy {
        margin-top: 15px; /* 与 .nav 保持一致的间距 */
      }
      /* 移动端 - 新增按钮样式调整 */
      .nav-policy .btn.policy {
        width: 80%;
        max-width: 300px;
        font-size: 15px;
        padding: 12px 0;
        margin: 0 0 15px 0; /* 垂直排列时的间距 */
      }

      /* 移动端 - 飞利猫按钮容器 */
      .nav-flm {
        margin-top: 15px; /* 与 .nav 保持一致的间距 */
      }
      /* 移动端 - 飞利猫按钮样式调整 */
      .nav-flm .btn.flm {
        width: 80%;
        max-width: 300px;
        font-size: 15px;
        padding: 12px 0;
        margin: 0 0 15px 0; /* 垂直排列时的间距 */
      }


      .worktime { font-size: 14px; margin-top: 12px; }
    }

    /* 动画定义 */
    @keyframes fadeUp {
      to { opacity: 1; transform: translateY(0); }
    }