/* ========================================
   新疆奥滋曼贸易有限公司 - 全局样式 v3.0
   整合：基础 + 头部 + 菜单 + 底部 + 组件 + 弹窗 + 首页
   ======================================== */

/* ===== CSS 变量 ===== */
:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: rgba(26, 115, 232, 0.08);
  --text: #333;
  --text-light: #666;
  --text-muted: #999;
  --bg: #fff;
  --bg-light: #f5f7fa;
  --bg-dark: #1a1a2e;
  --border: #e0e0e0;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
  --header-height: 50px;
  --header-height-mobile: 50px;
  --menu-width: 240px;
  --menu-mini: 60px;
  --footer-height: 48px;
  --menu-bg: #1a1a2e;
  --menu-text: rgba(255,255,255,0.7);
  --menu-primary: #4a9eff;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text); background: var(--bg-light); line-height: 1.6; overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

/* ===== 主容器 ===== */
.uz_container {
  display: flex; flex-direction: column; min-height: 100vh;
  max-width: 1440px; margin: 0 auto; background: var(--bg);
}
.uz_container.uz_container--full { max-width: 100%; }
/* ===== 宽度切换按钮 ===== */
.uz_width-toggle {
  position: fixed; bottom: 80px; right: 20px; z-index: 999;
  width: 44px; height: 44px; border-radius: 50%; border: none;
  background: var(--primary); color: #fff; font-size: 18px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(26, 115, 232, 0.35); transition: var(--transition);
}
.uz_width-toggle:hover { transform: scale(1.1); }
.uz_width-toggle i { transition: transform 0.3s ease; }
.uz_width-toggle.uz_width-toggle--full i { transform: rotate(180deg); }

/* ===== 回到顶部 ===== */
.uz_back-to-top {
  position: fixed; bottom: 136px; right: 20px; z-index: 998;
  width: 44px; height: 44px; border-radius: 50%; border: none;
  background: var(--bg); color: var(--text-light); font-size: 16px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-hover); opacity: 0; visibility: hidden;
  transform: translateY(20px); transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.uz_back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.uz_back-to-top:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.uz_back-to-top:active { transform: translateY(0) scale(0.95); }

/* ===== 顶部导航栏 (PC) ===== */
.uz_header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-height); background: var(--bg);
  border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
}
.uz_header__pc {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1400px; height: 100%; margin: 0 auto; padding: 0 24px;
}

/* Logo */
.uz_header__logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.uz_header__logo img { height: 36px; width: auto; }
.uz_header__brand { display: flex; flex-direction: column; gap: 2px; }
.uz_header__name { font-size: 18px; font-weight: 700; color: var(--text); line-height: 1.2; }
.uz_header__tag { font-size: 11px; color: var(--primary); font-weight: 500; letter-spacing: 1px; }

/* 主导航 */
.uz_header__nav {
  display: flex; align-items: center; gap: 4px; margin: 0 24px;
  flex: 1; justify-content: center;
}
.uz_header__nav-item {
  display: flex; align-items: center; gap: 6px; padding: 8px 16px;
  color: var(--text-light); font-size: 14px; font-weight: 500;
  border-radius: var(--radius); transition: var(--transition);
  position: relative; white-space: nowrap;
}
.uz_header__nav-item:hover { color: var(--primary); background: var(--primary-light); }
.uz_header__nav-item.active { color: var(--primary); background: var(--primary-light); }
.uz_header__nav-item.active::after {
  content: ''; position: absolute; bottom: -4px; left: 50%; transform: translateX(-50%);
  width: 20px; height: 3px; background: var(--primary); border-radius: 2px;
}

/* 下拉菜单 */
.uz_header__dropdown { position: relative; }
.uz_header__arrow { font-size: 10px !important; margin-left: 2px; transition: transform 0.3s ease; }
.uz_header__dropdown:hover .uz_header__arrow { transform: rotate(180deg); }
.uz_header__submenu {
  position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%) translateY(-10px); min-width: 180px;
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 8px 0; opacity: 0; visibility: hidden; transition: var(--transition); z-index: 1001;
}
.uz_header__submenu::before {
  content: ''; position: absolute; top: -6px; left: 50%; transform: translateX(-50%);
  border-left: 6px solid transparent; border-right: 6px solid transparent; border-bottom: 6px solid var(--bg);
}
.uz_header__dropdown:hover .uz_header__submenu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.uz_header__submenu a {
  display: flex; align-items: center; gap: 10px; padding: 10px 20px;
  color: var(--text-light); font-size: 14px; white-space: nowrap;
}
.uz_header__submenu a i { font-size: 13px; color: var(--primary); width: 16px; text-align: center; }
.uz_header__submenu a:hover { color: var(--primary); background: var(--primary-light); padding-left: 24px; }

/* 工具区 */
.uz_header__tools { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }

/* 搜索 */
.uz_header__search { position: relative; }
.uz_header__search-btn {
  width: 36px; height: 36px; border-radius: 50%; border: none;
  background: transparent; color: var(--text-light); font-size: 16px;
  cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.uz_header__search-btn:hover { background: var(--primary-light); color: var(--primary); }
.uz_header__search-box {
  position: absolute; top: calc(100% + 8px); right: 0; display: flex; align-items: center; gap: 8px;
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 8px 12px; opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: var(--transition); z-index: 1001; min-width: 280px;
}
.uz_header__search-box.active { opacity: 1; visibility: visible; transform: translateY(0); }
.uz_header__search-box input { flex: 1; border: none; outline: none; font-size: 14px; padding: 6px 4px; color: var(--text); }
.uz_header__search-box input::placeholder { color: #bbb; }
.uz_header__search-box button {
  width: 32px; height: 32px; border-radius: 6px; border: none;
  background: var(--primary); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.uz_header__search-box button:hover { background: var(--primary-dark); }

/* 语言切换 */
.uz_header__lang { position: relative; }
.uz_header__lang-btn {
  display: flex; align-items: center; gap: 6px; padding: 6px 12px;
  border-radius: var(--radius); border: 1px solid var(--border); background: var(--bg);
  color: var(--text-light); font-size: 13px; cursor: pointer; transition: var(--transition);
}
.uz_header__lang-btn:hover { border-color: var(--primary); color: var(--primary); }
.uz_header__lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 140px;
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 6px 0; opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: var(--transition); z-index: 1001;
}
.uz_header__lang:hover .uz_header__lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.uz_header__lang-menu a { display: flex; align-items: center; gap: 8px; padding: 10px 16px; color: var(--text-light); font-size: 13px; }
.uz_header__lang-menu a i { font-size: 12px; opacity: 0; color: var(--primary); }
.uz_header__lang-menu a.active i { opacity: 1; }
.uz_header__lang-menu a:hover { color: var(--primary); background: var(--primary-light); }

/* 用户登录 */
.uz_header__user-guest { display: flex; align-items: center; gap: 8px; }
.uz_header__user-login {
  display: flex; align-items: center; gap: 6px; padding: 8px 16px;
  border-radius: 20px; background: var(--primary-light); color: var(--primary);
  font-size: 14px; font-weight: 500; transition: var(--transition);
}
.uz_header__user-login:hover { background: var(--primary); color: #fff; }
.uz_header__user-register {
  padding: 8px 16px; border-radius: 20px; border: 1px solid var(--border);
  color: var(--text-light); font-size: 14px; transition: var(--transition);
}
.uz_header__user-register:hover { border-color: var(--primary); color: var(--primary); }
.uz_header__user-logged { position: relative; }
.uz_header__user-btn {
  display: flex; align-items: center; gap: 8px; padding: 4px 12px 4px 4px;
  border-radius: 24px; border: 1px solid var(--border); background: var(--bg);
  cursor: pointer; transition: var(--transition);
}
.uz_header__user-btn:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(26, 115, 232, 0.1); }
.uz_header__user-btn img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; }
.uz_header__user-btn span { font-size: 14px; color: var(--text); max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uz_header__user-btn i { font-size: 10px; color: var(--text-light); transition: transform 0.3s ease; }
.uz_header__user-logged:hover .uz_header__user-btn i { transform: rotate(180deg); }
.uz_header__user-menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 220px;
  background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 8px 0; opacity: 0; visibility: hidden; transform: translateY(-10px);
  transition: var(--transition); z-index: 1001;
}
.uz_header__user-logged:hover .uz_header__user-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.uz_header__user-info { display: flex; align-items: center; gap: 12px; padding: 12px 16px; }
.uz_header__user-info img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.uz_header__user-info div { display: flex; flex-direction: column; gap: 2px; }
.uz_header__user-info strong { font-size: 14px; color: var(--text); }
.uz_header__user-info span { font-size: 12px; color: var(--text-light); }
.uz_header__user-divider { height: 1px; background: var(--border); margin: 4px 12px; }
.uz_header__user-menu a { display: flex; align-items: center; gap: 10px; padding: 10px 16px; color: var(--text-light); font-size: 14px; }
.uz_header__user-menu a i { width: 18px; text-align: center; color: var(--text-light); font-size: 14px; }
.uz_header__user-menu a:hover { color: var(--primary); background: var(--primary-light); }
.uz_header__user-menu a:hover i { color: var(--primary); }
.uz_header__user-logout { color: #ff4757 !important; }
.uz_header__user-logout:hover { background: #fff1f0 !important; }
.uz_header__user-logout i { color: #ff4757 !important; }

/* ===== 移动端头部 (默认隐藏) ===== */
.uz_header__mobile,
.uz_header__mobile-search-panel,
.uz_header__mobile-overlay,
.uz_header__mobile-sidebar { display: none; }

/* ===== 菜单栏 ===== */
.uz_menu {
  position: fixed; top: var(--header-height); left: 0; bottom: 0;
  background: var(--menu-bg); color: var(--menu-text); z-index: 900;
  display: flex; flex-direction: column;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1); overflow: hidden;
}
.uz_menu__toggle {
  position: fixed; top: calc(var(--header-height) + 12px); left: 12px; z-index: 901;
  width: 40px; height: 40px; border-radius: 10px; border: none;
  background: var(--menu-bg); color: var(--menu-text); font-size: 16px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); transition: var(--transition);
}
.uz_menu__toggle:hover { background: var(--menu-primary); color: #fff; transform: scale(1.05); }

/* 隐藏模式 */
.uz_menu[data-mode="hidden"] { width: 0; opacity: 0; visibility: hidden; }
.uz_menu[data-mode="hidden"] ~ .uz_content, .uz_menu[data-mode="hidden"] ~ .uz_footer { margin-left: 0; }
.uz_menu[data-mode="hidden"] + .uz_menu__toggle { left: 12px; }

/* 缩小模式 */
.uz_menu[data-mode="mini"] { width: var(--menu-mini); opacity: 1; visibility: visible; }
.uz_menu[data-mode="mini"] .uz_menu__header,
.uz_menu[data-mode="mini"] .uz_menu__text,
.uz_menu[data-mode="mini"] .uz_menu__arrow,
.uz_menu[data-mode="mini"] .uz_menu__footer .uz_menu__text { opacity: 0; width: 0; overflow: hidden; }
.uz_menu[data-mode="mini"] .uz_menu__brand img { width: 36px; height: 36px; }
.uz_menu[data-mode="mini"] .uz_menu__item, .uz_menu[data-mode="mini"] .uz_menu__group-btn { justify-content: center; padding: 14px 0; }
.uz_menu[data-mode="mini"] .uz_menu__item i, .uz_menu[data-mode="mini"] .uz_menu__group-btn > i:first-child { font-size: 20px; margin: 0; }
.uz_menu[data-mode="mini"] .uz_menu__sub { display: none; }
.uz_menu[data-mode="mini"] ~ .uz_content, .uz_menu[data-mode="mini"] ~ .uz_footer { margin-left: var(--menu-mini); }
.uz_menu[data-mode="mini"] + .uz_menu__toggle { left: calc(var(--menu-mini) + 12px); }
.uz_menu[data-mode="mini"] .uz_menu__item:hover::after,
.uz_menu[data-mode="mini"] .uz_menu__group-btn:hover::after {
  content: attr(data-tooltip); position: absolute; left: calc(100% + 12px); top: 50%; transform: translateY(-50%);
  background: var(--menu-bg); color: #fff; padding: 6px 14px; border-radius: 6px;
  font-size: 13px; white-space: nowrap; box-shadow: var(--shadow-lg); z-index: 1000; pointer-events: none;
}
.uz_menu[data-mode="mini"] .uz_menu__item:hover::before,
.uz_menu[data-mode="mini"] .uz_menu__group-btn:hover::before {
  content: ''; position: absolute; left: calc(100% + 6px); top: 50%; transform: translateY(-50%);
  border-top: 6px solid transparent; border-bottom: 6px solid transparent; border-right: 6px solid var(--menu-bg); z-index: 1000;
}

/* 完整模式 */
.uz_menu[data-mode="full"] { width: var(--menu-width); opacity: 1; visibility: visible; }
.uz_menu[data-mode="full"] ~ .uz_content, .uz_menu[data-mode="full"] ~ .uz_footer { margin-left: var(--menu-width); }
.uz_menu[data-mode="full"] + .uz_menu__toggle { left: calc(var(--menu-width) + 12px); }

/* 悬浮模式 */
.uz_menu[data-mode="float"] {
  width: var(--menu-width); opacity: 0; visibility: hidden; transform: translateX(-20px);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  top: calc(var(--header-height) + 8px); bottom: 8px; left: 8px; box-shadow: var(--shadow-lg);
}
.uz_menu[data-mode="float"].active { opacity: 1; visibility: visible; transform: translateX(0); }
.uz_menu[data-mode="float"] ~ .uz_content, .uz_menu[data-mode="float"] ~ .uz_footer { margin-left: 0; }
.uz_menu[data-mode="float"] + .uz_menu__toggle { left: 12px; }
.uz_menu[data-mode="float"].active + .uz_menu__toggle { left: calc(var(--menu-width) + 20px); }

/* 菜单内部 */
.uz_menu__header { padding: 20px 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.06); transition: var(--transition); }
.uz_menu__brand { display: flex; align-items: center; gap: 12px; }
.uz_menu__brand img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; flex-shrink: 0; transition: var(--transition); }
.uz_menu__title { font-size: 16px; font-weight: 600; color: #fff; white-space: nowrap; transition: var(--transition); }
.uz_menu__nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 0; }
.uz_menu__nav::-webkit-scrollbar { width: 4px; }
.uz_menu__nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
.uz_menu__item {
  display: flex; align-items: center; gap: 14px; padding: 12px 20px;
  color: var(--menu-text); font-size: 14px; transition: all 0.25s ease;
  position: relative; border-left: 3px solid transparent; cursor: pointer;
}
.uz_menu__item i { font-size: 18px; width: 24px; text-align: center; flex-shrink: 0; transition: var(--transition); }
.uz_menu__item:hover { background: rgba(255,255,255,0.05); color: #fff; }
.uz_menu__item.active { background: rgba(26, 115, 232, 0.15); color: var(--menu-primary); border-left-color: var(--menu-primary); }
.uz_menu__group { position: relative; }
.uz_menu__group-btn {
  display: flex; align-items: center; gap: 14px; width: 100%; padding: 12px 20px;
  border: none; background: none; color: var(--menu-text); font-size: 14px;
  cursor: pointer; transition: all 0.25s ease; position: relative;
  border-left: 3px solid transparent; text-align: left;
}
.uz_menu__group-btn > i:first-child { font-size: 18px; width: 24px; text-align: center; flex-shrink: 0; }
.uz_menu__group-btn .uz_menu__arrow { margin-left: auto; font-size: 11px; transition: transform 0.3s ease; }
.uz_menu__group-btn:hover { background: rgba(255,255,255,0.05); color: #fff; }
.uz_menu__group-btn.active { background: rgba(26, 115, 232, 0.15); color: var(--menu-primary); border-left-color: var(--menu-primary); }
.uz_menu__group-btn.active .uz_menu__arrow { transform: rotate(90deg); }
.uz_menu__sub { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; background: rgba(0,0,0,0.15); }
.uz_menu__sub.active { max-height: 300px; }
.uz_menu__sub a {
  display: flex; align-items: center; gap: 12px; padding: 10px 20px 10px 56px;
  color: rgba(255,255,255,0.55); font-size: 13px; transition: all 0.2s ease;
}
.uz_menu__sub a i { font-size: 12px; width: 16px; text-align: center; color: var(--menu-primary); opacity: 0.7; }
.uz_menu__sub a:hover { color: #fff; background: rgba(255,255,255,0.03); padding-left: 60px; }
.uz_menu__footer { padding: 12px 16px; border-top: 1px solid rgba(255,255,255,0.06); }
.uz_menu__mode-switch { display: flex; gap: 4px; margin-bottom: 12px; justify-content: center; }
.uz_menu__mode-btn {
  width: 32px; height: 32px; border-radius: var(--radius); border: none;
  background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.5);
  font-size: 13px; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all 0.25s ease;
}
.uz_menu__mode-btn:hover { background: rgba(255,255,255,0.12); color: #fff; }
.uz_menu__mode-btn.active { background: var(--menu-primary); color: #fff; }
.uz_menu__user { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: var(--radius); background: rgba(255,255,255,0.04); cursor: pointer; transition: all 0.25s ease; }
.uz_menu__user:hover { background: rgba(255,255,255,0.08); }
.uz_menu__user img { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.uz_menu__user span { flex: 1; font-size: 13px; color: #fff; white-space: nowrap; overflow: hidden; }
.uz_menu__user i { font-size: 14px; color: rgba(255,255,255,0.4); transition: all 0.25s ease; }
.uz_menu__user:hover i { color: #ff6b6b; }

/* ===== 内容区域 ===== */
.uz_content {
  flex: 1; padding: 55px 24px 24px;
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
  transition: margin-left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.uz_footer { transition: margin-left 0.35s cubic-bezier(0.4, 0, 0.2, 1); }

/* ===== 底部导航栏 ===== */
.uz_footer__pc { display: block; background: var(--bg-dark); color: rgba(255,255,255,0.7); }
.uz_footer__mobile { display: none; }
.uz_footer__inner { max-width: 100%; margin: 0 auto; padding: 30px 80px 10px; display: grid; grid-template-columns: 160px 1fr 160px; gap: 50px; align-items: start; }
.uz_footer__brand { display: flex; flex-direction: column; gap: 3px; }
.uz_footer__logo img { height: 38px; width: auto; filter: brightness(0) invert(1); }
.uz_footer__slogan { color: rgba(255,255,255,0.7); font-size: 10px; line-height: 1.6; text-align: center; }
.uz_footer__qrcode { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.uz_footer__qrcode img { width: 100px; height: 100px; border-radius: var(--radius); background: var(--bg); padding: 4px; }
.uz_footer__qrcode span { color: rgba(255,255,255,0.6); font-size: 12px; }
.uz_footer__nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.uz_footer__col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.uz_footer__col h4 i { color: var(--primary); font-size: 14px; }
.uz_footer__col a, .uz_footer__col p { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.65); font-size: 12px; line-height: 1.5; transition: var(--transition); }
.uz_footer__col a:hover { color: #fff; transform: translateX(4px); }
.uz_footer__col a i { width: 16px; text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); }
.uz_footer__col a:hover i { color: var(--primary); }
.uz_footer__copyright { border-top: 1px solid rgba(255,255,255,0.08); }
.uz_footer__copyright-inner { max-width: 100%; margin: 0 auto; padding: 10px 80px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.uz_footer__copyright p { color: rgba(255,255,255,0.4); font-size: 13px; }
.uz_footer__copyright a { color: rgba(255,255,255,0.5); }
.uz_footer__copyright a:hover { color: var(--primary); }
.uz_footer__divider { margin: 0 10px; color: rgba(255,255,255,0.2); }
.uz_footer__tech i { margin-left: 6px; color: var(--primary); }

/* ===== 登录/注册弹窗 ===== */
.uz_auth-modal {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all 0.3s ease;
}
.uz_auth-modal.active { opacity: 1; visibility: visible; }
.uz_auth-modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
.uz_auth-modal__content {
  position: relative; width: 100%; max-width: 420px; background: var(--bg);
  border-radius: var(--radius-lg); box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  overflow: hidden; transform: scale(0.9) translateY(20px);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); z-index: 1;
}
.uz_auth-modal.active .uz_auth-modal__content { transform: scale(1) translateY(0); }
.uz_auth-modal__header { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.uz_auth-modal__title { font-size: 18px; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 8px; }
.uz_auth-modal__title i { color: var(--primary); }
.uz_auth-modal__close {
  width: 32px; height: 32px; border-radius: 8px; border: none;
  background: var(--bg-light); color: var(--text-muted); font-size: 14px;
  cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.uz_auth-modal__close:hover { background: #ffebee; color: #c62828; }
.uz_auth-modal__body { padding: 24px; }
.uz_auth-modal__tabs { display: flex; gap: 0; margin-bottom: 24px; background: var(--bg-light); border-radius: var(--radius); padding: 4px; }
.uz_auth-modal__tab { flex: 1; padding: 10px; border: none; background: transparent; color: var(--text-muted); font-size: 14px; font-weight: 500; cursor: pointer; border-radius: 6px; transition: var(--transition); }
.uz_auth-modal__tab.active { background: var(--bg); color: var(--primary); box-shadow: var(--shadow); }
.uz_auth-modal__form { display: none; }
.uz_auth-modal__form.active { display: block; animation: fadeInUp 0.3s ease; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.uz_auth-modal__group { margin-bottom: 16px; }
.uz_auth-modal__label { display: block; font-size: 13px; font-weight: 500; color: var(--text-light); margin-bottom: 6px; }
.uz_auth-modal__input { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; color: var(--text); background: var(--bg); transition: var(--transition); outline: none; }
.uz_auth-modal__input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1); }
.uz_auth-modal__input::placeholder { color: #bbb; }
.uz_auth-modal__input-group { position: relative; }
.uz_auth-modal__input-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
.uz_auth-modal__input-icon + .uz_auth-modal__input { padding-left: 40px; }
.uz_auth-modal__input-eye { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; cursor: pointer; background: none; border: none; padding: 0; }
.uz_auth-modal__options { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; font-size: 13px; }
.uz_auth-modal__remember { display: flex; align-items: center; gap: 6px; color: var(--text-light); cursor: pointer; }
.uz_auth-modal__remember input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); }
.uz_auth-modal__forgot { color: var(--primary); font-size: 13px; }
.uz_auth-modal__forgot:hover { color: var(--primary-dark); }
.uz_auth-modal__submit { width: 100%; padding: 12px; border: none; border-radius: var(--radius); background: var(--primary); color: #fff; font-size: 15px; font-weight: 600; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; gap: 8px; }
.uz_auth-modal__submit:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26, 115, 232, 0.3); }
.uz_auth-modal__divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-muted); font-size: 13px; }
.uz_auth-modal__divider::before, .uz_auth-modal__divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.uz_auth-modal__social { display: flex; gap: 12px; justify-content: center; }
.uz_auth-modal__social-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: var(--bg); color: var(--text-light); font-size: 18px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.uz_auth-modal__social-btn:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.uz_auth-modal__footer { text-align: center; padding: 16px 24px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-muted); }
.uz_auth-modal__footer a { color: var(--primary); font-weight: 500; }
.uz_auth-modal__footer a:hover { color: var(--primary-dark); }
.uz_auth-modal__code-group { display: flex; gap: 10px; }
.uz_auth-modal__code-group .uz_auth-modal__input { flex: 1; }
.uz_auth-modal__code-btn { padding: 0 16px; border: 1px solid var(--primary); border-radius: var(--radius); background: transparent; color: var(--primary); font-size: 13px; font-weight: 500; cursor: pointer; white-space: nowrap; transition: var(--transition); }
.uz_auth-modal__code-btn:hover { background: var(--primary-light); }
.uz_auth-modal__code-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ===== 常用组件 ===== */
.uz_card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; transition: var(--transition); }
.uz_card:hover { box-shadow: var(--shadow-hover); }
.uz_btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 24px; border-radius: var(--radius); border: none; background: var(--primary); color: #fff; font-size: 14px; font-weight: 500; cursor: pointer; transition: var(--transition); }
.uz_btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.uz_table { width: 100%; border-collapse: collapse; background: var(--bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.uz_table th, .uz_table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.uz_table th { background: var(--bg-light); font-weight: 600; color: var(--text-light); font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; }
.uz_table tr:hover td { background: var(--bg-light); }
.uz_input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 14px; transition: var(--transition); outline: none; }
.uz_input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1); }
.uz_pagination { display: flex; gap: 8px; justify-content: center; margin-top: 24px; }
.uz_pagination a, .uz_pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; height: 36px; padding: 0 12px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 14px; transition: var(--transition); }
.uz_pagination a:hover { border-color: var(--primary); color: var(--primary); }
.uz_pagination .active { background: var(--primary); border-color: var(--primary); color: #fff; }
.uz_alert { padding: 14px 20px; border-radius: var(--radius); margin-bottom: 16px; font-size: 14px; }
.uz_alert--success { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.uz_alert--error { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }
.uz_alert--warning { background: #fff3e0; color: #ef6c00; border: 1px solid #ffcc80; }
.uz_breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; font-size: 14px; color: var(--text-muted); }
.uz_breadcrumb a { color: var(--text-light); }
.uz_breadcrumb a:hover { color: var(--primary); }
.uz_breadcrumb__sep { color: var(--text-muted); }

/* ===== 首页 Banner ===== */
.uz-banner { position: relative; width: 100%; height: 480px; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 40px; }
.uz-banner__slides { position: relative; width: 100%; height: 100%; }
.uz-banner__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease-in-out; z-index: 1; }
.uz-banner__slide.active { opacity: 1; z-index: 2; }
.uz-banner__slide img { width: 100%; height: 100%; object-fit: cover; }
.uz-banner__slide::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26, 115, 232, 0.85) 0%, rgba(118, 75, 162, 0.75) 100%); }
.uz-banner__content { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); text-align: center; color: #fff; z-index: 3; width: 90%; max-width: 700px; }
.uz-banner__title { font-size: 2.8rem; font-weight: 700; margin-bottom: 16px; text-shadow: 0 2px 20px rgba(0,0,0,0.2); animation: fadeInUp 0.8s ease; }
.uz-banner__desc { font-size: 1.1rem; opacity: 0.9; margin-bottom: 28px; line-height: 1.6; animation: fadeInUp 0.8s ease 0.15s both; }
.uz-banner__btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 32px; background: #fff; color: var(--primary); border-radius: 30px; font-weight: 600; font-size: 15px; transition: var(--transition); animation: fadeInUp 0.8s ease 0.3s both; }
.uz-banner__btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); color: var(--primary-dark); }
.uz-banner__dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 4; }
.uz-banner__dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.4); border: none; cursor: pointer; transition: all 0.3s ease; }
.uz-banner__dot.active { background: #fff; width: 28px; border-radius: 5px; }
.uz-banner__dot:hover { background: rgba(255,255,255,0.7); }
.uz-banner__arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: none; background: rgba(255,255,255,0.15); color: #fff; font-size: 18px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s ease; z-index: 4; backdrop-filter: blur(4px); }
.uz-banner__arrow:hover { background: rgba(255,255,255,0.3); transform: translateY(-50%) scale(1.1); }
.uz-banner__arrow--prev { left: 20px; }
.uz-banner__arrow--next { right: 20px; }
.uz-banner__progress { position: absolute; bottom: 0; left: 0; height: 3px; background: rgba(255,255,255,0.5); z-index: 4; transition: width 0.1s linear; }

/* ===== 首页统计 ===== */
.uz-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.uz-stat { background: var(--bg); border-radius: var(--radius); padding: 28px 20px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); }
.uz-stat:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.uz-stat__icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; font-size: 20px; }
.uz-stat__num { font-size: 2.2rem; font-weight: 700; color: var(--primary); line-height: 1; }
.uz-stat__label { color: var(--text-muted); font-size: 14px; margin-top: 8px; }

/* ===== 首页分类标签 ===== */
.uz-section__header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.uz-section__title { font-size: 18px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.uz-section__title i { color: var(--primary); }
.uz-section__more { color: var(--text-muted); font-size: 14px; display: flex; align-items: center; gap: 4px; }
.uz-section__more:hover { color: var(--primary); }
.uz-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.uz-tag { display: inline-flex; align-items: center; gap: 6px; padding: 8px 18px; background: var(--bg); border-radius: 20px; font-size: 14px; color: var(--text-light); box-shadow: var(--shadow); transition: var(--transition); }
.uz-tag:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(26, 115, 232, 0.25); }
.uz-tag i { font-size: 12px; }

/* ===== 首页文章列表 ===== */
.uz-layout { display: grid; grid-template-columns: 1fr 340px; gap: 32px; }
.uz-article { display: flex; gap: 20px; padding: 24px; background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 16px; transition: var(--transition); }
.uz-article:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.uz-article__cover { width: 180px; height: 120px; border-radius: var(--radius); object-fit: cover; flex-shrink: 0; background: var(--bg-light); }
.uz-article__body { flex: 1; min-width: 0; }
.uz-article__title { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; line-height: 1.4; }
.uz-article__title:hover { color: var(--primary); }
.uz-article__badge { display: inline-flex; padding: 2px 8px; background: #ff4757; color: #fff; font-size: 11px; border-radius: 4px; font-weight: 500; flex-shrink: 0; }
.uz-article__meta { display: flex; gap: 16px; font-size: 13px; color: var(--text-muted); margin-bottom: 10px; }
.uz-article__meta span { display: flex; align-items: center; gap: 4px; }
.uz-article__desc { font-size: 14px; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== 首页侧边栏 ===== */
.uz-sidebar__card { background: var(--bg); border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 20px; overflow: hidden; }
.uz-sidebar__header { padding: 16px 20px; border-bottom: 1px solid var(--border); font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.uz-sidebar__header i { color: var(--primary); }
.uz-sidebar__body { padding: 16px 20px; }
.uz-hot-list { list-style: none; }
.uz-hot-list li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.uz-hot-list li:last-child { border-bottom: none; }
.uz-hot-list__rank { width: 24px; height: 24px; border-radius: 6px; background: var(--bg-light); color: var(--text-muted); font-size: 12px; font-weight: 600; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.uz-hot-list__rank--top { background: var(--primary); color: #fff; }
.uz-hot-list__title { flex: 1; font-size: 14px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.uz-hot-list__title:hover { color: var(--primary); }
.uz-hot-list__num { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }
.uz-about { font-size: 14px; color: var(--text-light); line-height: 1.8; }
.uz-about__links { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 12px; }
.uz-about__links a { color: var(--text-muted); }
.uz-about__links a:hover { color: var(--primary); }

/* ===== 友情链接 ===== */
.uz-links { padding: 20px 0; border-top: 1px solid var(--border); margin-top: 20px; }
.uz-links__label { font-size: 13px; color: var(--text-muted); margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.uz-links__list { display: flex; flex-wrap: wrap; gap: 12px; }
.uz-links__list a { font-size: 13px; color: var(--text-muted); padding: 4px 12px; background: var(--bg-light); border-radius: 4px; transition: var(--transition); }
.uz-links__list a:hover { background: var(--primary); color: #fff; }

/* ===== 空状态 ===== */
.uz-empty { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.uz-empty i { font-size: 48px; margin-bottom: 16px; opacity: 0.3; }

/* ===== 响应式 (< 768px) ===== */
@media (max-width: 768px) {
  :root { --header-height: var(--header-height-mobile); }

  .uz_header__pc { display: none !important; }

  .uz_header__mobile { display: flex !important; align-items: center; justify-content: space-between; height: 100%; padding: 0 16px; }
  .uz_header__menu-btn, .uz_header__mobile-search {
    width: 40px; height: 40px; border: none; background: transparent; color: var(--text);
    font-size: 20px; cursor: pointer; display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius); transition: var(--transition);
  }
  .uz_header__mobile-search { font-size: 18px; color: var(--text-light); }
  .uz_header__menu-btn:hover, .uz_header__mobile-search:hover { background: rgba(0,0,0,0.04); }
  .uz_header__mobile-logo { display: flex; align-items: center; gap: 8px; }
  .uz_header__mobile-logo img { height: 32px; width: auto; }
  .uz_header__mobile-logo span { font-size: 16px; font-weight: 700; color: var(--text); }
  .uz_header__mobile-actions { display: flex; align-items: center; gap: 8px; }

  /* 移动端搜索面板 */
  .uz_header__mobile-search-panel { display: block; position: fixed; top: var(--header-height); left: 0; right: 0; background: var(--bg); padding: 12px 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); transform: translateY(-100%); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; }
  .uz_header__mobile-search-panel.active { transform: translateY(0); opacity: 1; visibility: visible; }
  .uz_header__mobile-search-inner { display: flex; align-items: center; gap: 10px; }
  .uz_header__mobile-search-inner input { flex: 1; height: 40px; border: 1px solid var(--border); border-radius: 20px; padding: 0 16px; font-size: 14px; outline: none; transition: var(--transition); }
  .uz_header__mobile-search-inner input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1); }
  .uz_header__mobile-search-inner button { width: 40px; height: 40px; border-radius: 50%; border: none; background: var(--primary); color: #fff; font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition); flex-shrink: 0; }
  .uz_header__mobile-search-close { background: #f5f5f5 !important; color: var(--text-light) !important; }

  /* 移动端遮罩层 */
  .uz_header__mobile-overlay { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.4); backdrop-filter: blur(4px); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 1001; }
  .uz_header__mobile-overlay.active { opacity: 1; visibility: visible; }

  /* 移动端侧边栏 */
  .uz_header__mobile-sidebar { display: flex; position: fixed; top: 0; left: 0; bottom: 0; width: 300px; max-width: 85vw; background: var(--bg); z-index: 1002; transform: translateX(-100%); transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1); flex-direction: column; overflow-y: auto; }
  .uz_header__mobile-sidebar.active { transform: translateX(0); }
  .uz_header__mobile-sidebar-header { display: flex; align-items: center; gap: 12px; padding: 20px 20px 16px; border-bottom: 1px solid var(--border); position: relative; }
  .uz_header__mobile-sidebar-header img { height: 40px; width: auto; }
  .uz_header__mobile-sidebar-header span { font-size: 15px; font-weight: 600; color: var(--text); flex: 1; line-height: 1.3; }
  .uz_header__mobile-sidebar-close { width: 32px; height: 32px; border: none; background: rgba(0,0,0,0.04); border-radius: var(--radius); color: var(--text-light); font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
  .uz_header__mobile-sidebar-contact { display: flex; flex-direction: column; padding: 12px 20px; border-bottom: 1px solid var(--border); background: var(--bg-light); }
  .uz_header__mobile-sidebar-contact a { display: flex; align-items: center; gap: 10px; padding: 10px 0; color: var(--text); font-size: 14px; }
  .uz_header__mobile-sidebar-contact a i { width: 20px; text-align: center; color: var(--primary); font-size: 14px; }
  .uz_header__mobile-sidebar-nav { flex: 1; padding: 8px 0; }
  .uz_header__mobile-sidebar-nav > a { display: flex; align-items: center; gap: 12px; padding: 14px 20px; color: var(--text); font-size: 15px; font-weight: 500; border-left: 3px solid transparent; transition: var(--transition); }
  .uz_header__mobile-sidebar-nav > a i { width: 24px; text-align: center; color: var(--text-light); font-size: 16px; }
  .uz_header__mobile-sidebar-nav > a:hover, .uz_header__mobile-sidebar-nav > a.active { color: var(--primary); background: var(--primary-light); border-left-color: var(--primary); }
  .uz_header__mobile-accordion { border-bottom: 1px solid rgba(0,0,0,0.04); }
  .uz_header__mobile-accordion-btn { display: flex; align-items: center; gap: 12px; width: 100%; padding: 14px 20px; border: none; background: none; color: var(--text); font-size: 15px; font-weight: 500; cursor: pointer; text-align: left; border-left: 3px solid transparent; transition: var(--transition); }
  .uz_header__mobile-accordion-btn i:first-child { width: 24px; text-align: center; color: var(--text-light); font-size: 16px; }
  .uz_header__mobile-accordion-btn i:last-child { margin-left: auto; font-size: 12px; color: var(--text-light); transition: transform 0.3s ease; }
  .uz_header__mobile-accordion-btn.active { color: var(--primary); background: var(--primary-light); border-left-color: var(--primary); }
  .uz_header__mobile-accordion-btn.active i:last-child { transform: rotate(90deg); color: var(--primary); }
  .uz_header__mobile-accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; background: #fafbfc; }
  .uz_header__mobile-accordion-content.active { max-height: 300px; }
  .uz_header__mobile-accordion-content a { display: flex; align-items: center; gap: 10px; padding: 12px 20px 12px 56px; color: var(--text-light); font-size: 14px; transition: var(--transition); }
  .uz_header__mobile-accordion-content a i { font-size: 12px; color: var(--primary); width: 16px; text-align: center; }
  .uz_header__mobile-accordion-content a:hover { color: var(--primary); background: rgba(26, 115, 232, 0.03); padding-left: 60px; }
  .uz_header__mobile-sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); background: var(--bg-light); }
  .uz_header__mobile-sidebar-lang { display: flex; gap: 8px; }
  .uz_header__mobile-sidebar-lang a { flex: 1; text-align: center; padding: 8px 12px; border-radius: 6px; font-size: 13px; color: var(--text-light); border: 1px solid var(--border); transition: var(--transition); }
  .uz_header__mobile-sidebar-lang a.active { background: var(--primary); color: #fff; border-color: var(--primary); }

  /* 菜单 */
  .uz_menu { top: var(--header-height); }
  .uz_menu__toggle { top: calc(var(--header-height) + 8px); width: 36px; height: 36px; }
  .uz_menu[data-mode="float"] { top: calc(var(--header-height) + 8px); width: 260px; }

  /* 内容区 */
  .uz_content { padding: 50px 16px 16px; margin-left: 0 !important; }
  .uz_footer { margin-left: 0 !important; }

  /* 底部 */
  .uz_footer__pc { display: none !important; }
  .uz_footer__mobile {
    display: flex !important; position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999;
    height: 56px; background: var(--bg); border-top: 1px solid var(--border);
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05); justify-content: space-around; align-items: center;
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  .uz_footer__mobile-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; flex: 1; height: 100%; color: var(--text-muted); transition: var(--transition); position: relative; }
  .uz_footer__mobile-item i { font-size: 20px; transition: var(--transition); }
  .uz_footer__mobile-item span { font-size: 11px; transition: var(--transition); }
  .uz_footer__mobile-item.active { color: var(--primary); }
  .uz_footer__mobile-item.active i { transform: scale(1.1); }
  body { padding-bottom: 56px; }

  /* 隐藏宽度切换和回到顶部 */
  .uz_width-toggle, .uz_back-to-top { display: none; }
  .uz_container { max-width: 100% !important; }

  /* 首页响应式 */
  .uz-layout { grid-template-columns: 1fr; }
  .uz-stats { grid-template-columns: repeat(2, 1fr); }
  .uz-banner__title { font-size: 2rem; }
  .uz-article__cover { width: 140px; height: 100px; }
  .uz-banner { height: 380px; border-radius: 0; margin: 0 -16px 30px; width: calc(100% + 32px); }
  .uz-banner__arrow { width: 36px; height: 36px; font-size: 14px; }
  .uz-banner__arrow--prev { left: 10px; }
  .uz-banner__arrow--next { right: 10px; }
  .uz-stat { padding: 20px 12px; }
  .uz-stat__num { font-size: 1.6rem; }
  .uz-article { flex-direction: column; gap: 14px; }
  .uz-article__cover { width: 100%; height: 160px; }
  .uz-article__title { font-size: 15px; }
}

@media (max-width: 576px) {
  .uz-banner { height: 250px; }
  .uz-banner__title { font-size: 1.5rem; }
  .uz-banner__btn { padding: 10px 24px; font-size: 14px; }
}

@media (max-width: 480px) {
  .uz_auth-modal__content { max-width: 100%; height: 100%; border-radius: 0; display: flex; flex-direction: column; }
  .uz_auth-modal__body { flex: 1; overflow-y: auto; }
}

@media (max-width: 360px) {
  .uz_header__mobile-logo span { font-size: 14px; }
  .uz_header__mobile-sidebar { width: 280px; }
  .uz_footer__mobile { height: 50px; }
  .uz_footer__mobile-item i { font-size: 18px; }
  .uz_footer__mobile-item span { font-size: 10px; }
  body { padding-bottom: 50px; }
}

/* iPhone 安全区域 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .uz_footer__mobile { padding-bottom: env(safe-area-inset-bottom); height: calc(56px + env(safe-area-inset-bottom)); }
}