* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      -webkit-tap-highlight-color: transparent;
      -webkit-focus-ring-color: transparent;
      outline: none;
    }

    *:focus {
      outline: none;
    }

    /* 移动端键盘优化：防止双击缩放 & 减少延迟 */
    input, textarea, select, button {
      touch-action: manipulation;
    }

    html {
      overflow-x: hidden;
      width: 100%;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
      width: 100%;
      max-width: 100vw;
    }

    .page {
      min-height: 100vh;
      background: #fff;
      overflow-x: hidden;
      width: 100%;
      max-width: 100vw;
      position: relative;
      isolation: isolate; /* 让光效伪元素负 z-index 显示在内容之下、背景之上 */
      padding-top: clamp(52px, 8vw, 64px);
    }

    /* ===== 默认背景蓝色渐变光效层（缓慢变换） ===== */
    .page::before,
    .page::after {
      content: '';
      position: fixed;
      inset: -20%; /* 超出视口，为漂移动画留足位移余量 */
      z-index: -1;
      pointer-events: none;
      will-change: transform, opacity;
    }
    .page::before {
      background:
        radial-gradient(ellipse 60% 45% at 18% 10%, rgba(14, 165, 233, 0.17), transparent 70%),
        radial-gradient(ellipse 55% 40% at 85% 75%, rgba(14, 165, 233, 0.14), transparent 70%),
        radial-gradient(ellipse 45% 35% at 60% 45%, rgba(56, 189, 248, 0.10), transparent 70%);
      animation: bgGlowDrift1 55s ease-in-out infinite alternate;
    }
    .page::after {
      background:
        radial-gradient(ellipse 50% 40% at 30% 80%, rgba(2, 132, 199, 0.12), transparent 70%),
        radial-gradient(ellipse 45% 35% at 70% 20%, rgba(56, 189, 248, 0.10), transparent 70%);
      animation: bgGlowDrift2 70s ease-in-out infinite alternate;
    }
    /* 光效漂移动画：仅用 transform/opacity（GPU 合成），避免重绘卡顿 */
    @keyframes bgGlowDrift1 {
      0%   { transform: translate3d(-3%, -2%, 0) scale(1);    opacity: 0.85; }
      50%  { transform: translate3d(2%, 3%, 0) scale(1.08);  opacity: 1; }
      100% { transform: translate3d(-1%, 2%, 0) scale(1.04); opacity: 0.9; }
    }
    @keyframes bgGlowDrift2 {
      0%   { transform: translate3d(2%, 3%, 0) scale(1.05);  opacity: 0.9; }
      50%  { transform: translate3d(-3%, -1%, 0) scale(0.97); opacity: 1; }
      100% { transform: translate3d(1%, -2%, 0) scale(1.08); opacity: 0.85; }
    }
    .page * {
      max-width: 100%;
    }

    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 50;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
      /* 初始隐藏在视口外，JS 加载完成后通过 header-ready 下滑入场 */
      opacity: 0;
      transform: translateY(-100%);
      transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.5s ease;
    }

    /* 页面加载完成后下滑入场 */
    .header.header-ready {
      opacity: 1;
      transform: translateY(0);
    }

    /* 滚动隐藏导航栏：上滑移出视口 */
    .header.header-hidden {
      opacity: 1;
      transform: translateY(-100%);
    }

    @keyframes headerSlideDown {
      from {
        opacity: 0;
        transform: translateY(-100%);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .header-inner {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
      position: relative;
    }

    .logo {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      gap: 2px;
    }

    /* 导航栏返回按键 */
    .header .back-btn {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: none;
      border: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #374151;
      transition: background 0.25s, color 0.25s, transform 0.25s;
      flex-shrink: 0;
      margin-right: 4px;
    }
    .header .back-btn:hover { background: #f3f4f6; color: #0ea5e9; }
    .header .back-btn:active { transform: scale(0.92); }

    .logo-text {
      display: flex;
      align-items: baseline;
      gap: 5px;
      white-space: nowrap;
    }

    /* 「欧卡2」主标题 — 站酷快乐体 + 纯色（去渐变），突出主体 */
    .lt-main {
      font-family: 'ZCOOL KuaiLe', 'PingFang SC', 'Microsoft YaHei', sans-serif;
      font-size: 24px;
      line-height: 1;
      color: #0369a1;
    }

    /* 斜杠分隔符 — 倾斜 + 金色，增添动感 */
    .lt-sep {
      font-size: 18px;
      font-weight: 300;
      color: #f59e0b;
      display: inline-block;
      transform: rotate(18deg) scaleY(1.15);
      line-height: 1;
      text-shadow: 0 1px 2px rgba(245, 158, 11, 0.3);
    }

    /* 「中国」— 楷体斜体 + 暖橙纯色，东方韵味 */
    .lt-cn {
      font-family: 'STKaiti', 'KaiTi', '楷体', 'SimSun', serif;
      font-size: 21px;
      font-weight: 700;
      font-style: italic;
      line-height: 1;
      color: #f59e0b;
    }

    /* 「玩家社区」— 细体小字 + 宽字距，作为收尾点缀 */
    .lt-comm {
      font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
      font-size: 13px;
      font-weight: 300;
      color: #64748b;
      letter-spacing: 3px;
      line-height: 1;
    }

    .menu-btn {
      position: relative;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: none;
      border: none;
      cursor: pointer;
      flex-shrink: 0;
      border-radius: 8px;
      transition: background 0.25s ease;
    }

    .menu-btn:hover {
      background: rgba(14, 165, 233, 0.06);
    }

    /* 导航栏文字按钮（直接显示，不放在下拉菜单内） */
    .nav-text-btn {
      display: inline-flex;
      align-items: center;
      height: 40px;
      padding: 0 12px;
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      color: #4b5563;
      background: none;
      border: none;
      cursor: pointer;
      flex-shrink: 0;
      border-radius: 8px;
      text-decoration: none;
      transition: background 0.25s ease, color 0.25s ease;
    }
    .nav-text-btn:hover {
      background: rgba(14, 165, 233, 0.06);
      color: #0ea5e9;
    }
    .nav-text-btn:active { transform: scale(0.94); }

    /* 移动端：导航栏长文字按钮缩小 */
    @media (max-width: 640px) {
      .nav-text-btn {
        font-size: 13px;
        padding: 0 8px;
      }
    }
    /* 极窄屏：进一步压缩 */
    @media (max-width: 380px) {
      .nav-text-btn {
        font-size: 12px;
        padding: 0 6px;
      }
    }

    .bar {
      position: absolute;
      width: 20px;
      height: 2px;
      background: #4b5563;
      border-radius: 2px;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .bar-top { transform: translateY(-6px); }
    .bar-mid { }
    .bar-bot { transform: translateY(6px); }

    /* hover 时线条变蓝 + 微微动画 */
    .menu-btn:hover .bar {
      background: #0ea5e9;
    }
    .menu-btn:hover .bar-top {
      transform: translateY(-5px);
    }
    .menu-btn:hover .bar-bot {
      transform: translateY(5px);
    }

    /* 点击展开时蓝色 */
    .menu-btn.open .bar {
      background: #0ea5e9;
    }
    .menu-btn.open .bar-top { transform: rotate(45deg); }
    .menu-btn.open .bar-mid { opacity: 0; transform: scaleX(0); }
    .menu-btn.open .bar-bot { transform: rotate(-45deg); }

    /* ===== 下拉菜单 ===== */
    .dropdown {
      position: absolute;
      top: 64px;
      right: 0;
      width: 260px;
      background: rgba(255, 255, 255, 0.98);
      border: 1px solid rgba(0, 0, 0, 0.08);
      border-radius: 16px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
      padding: 8px;
      overflow: hidden;

      opacity: 0;
      transform: translateY(-8px) scale(0.96);
      pointer-events: none;
      transition: all 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
    }

    .dropdown.show {
      opacity: 1;
      transform: translateY(0) scale(1);
      pointer-events: auto;
    }

    .dropdown-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 16px;
      border-radius: 12px;
      color: #374151;
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
      opacity: 0;
      transform: translateY(4px);
    }

    .dropdown.show .dropdown-item {
      opacity: 1;
      transform: translateY(0);
    }

    .dropdown.show .dropdown-item:nth-child(1) { transition-delay: 0.02s; }
    .dropdown.show .dropdown-item:nth-child(2) { transition-delay: 0.05s; }
    .dropdown.show .dropdown-item:nth-child(3) { transition-delay: 0.08s; }
    .dropdown.show .dropdown-item:nth-child(4) { transition-delay: 0.11s; }
    .dropdown.show .dropdown-item:nth-child(5) { transition-delay: 0.14s; }


    .dropdown-item:hover {
      background: rgba(14, 165, 233, 0.08);
      color: #0ea5e9;
    }

    .dropdown-item:active {
      transform: scale(0.97);
      background: rgba(14, 165, 233, 0.12);
    }

    .dropdown-item .item-icon {
      width: 20px;
      height: 20px;
      border-radius: 6px;
      background: rgba(14, 165, 233, 0.1);
      color: #0ea5e9;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      font-weight: 700;
      flex-shrink: 0;
    }

    /* 高斯模糊背景遮罩 */
    .overlay {
      position: fixed;
      top: 0; right: 0; bottom: 0; left: 0;
      background: rgba(255, 255, 255, 0.85);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.35s ease;
      z-index: 40;
    }

    .overlay.show {
      opacity: 1;
      pointer-events: auto;
    }

    /* ===== 图片预览工具栏 ===== */
    .img-preview-toolbar {
      position: absolute;
      bottom: 80px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      align-items: center;
      gap: 4px;
      background: rgba(0,0,0,0.65);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-radius: 14px;
      padding: 6px 10px;
      z-index: 10;
      opacity: 0;
      transition: opacity 0.2s;
    }
    .img-preview-overlay.show .img-preview-toolbar { opacity: 1; }
    .ipt-btn {
      width: 36px; height: 36px;
      border-radius: 10px;
      border: none;
      background: transparent;
      color: #fff;
      cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      transition: all 0.15s;
      flex-shrink: 0;
    }
    .ipt-btn:hover { background: rgba(255,255,255,0.15); }
    .ipt-btn:active { transform: scale(0.9); background: rgba(255,255,255,0.25); }
    .ipt-btn svg { width: 18px; height: 18px; }
    .ipt-divider {
      width: 1px; height: 20px;
      background: rgba(255,255,255,0.2);
      margin: 0 2px;
    }
    .ipt-zoom-label {
      position: absolute;
      top: 16px;
      left: 50%;
      transform: translateX(-50%);
      background: rgba(0,0,0,0.65);
      color: #fff;
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 10px;
      z-index: 11;
      opacity: 0;
      transition: opacity 0.3s;
      pointer-events: none;
    }
    @media (max-width: 640px) {
      .img-preview-toolbar {
        bottom: 70px;
        gap: 2px;
        padding: 4px 8px;
        border-radius: 12px;
      }
      .ipt-btn { width: 32px; height: 32px; border-radius: 8px; }
      .ipt-btn svg { width: 16px; height: 16px; }
    }

    /* ===== 轮播图 ===== */