/* ============================================================
   AIP Chat - 玻璃拟态 UI 样式表
   高级毛玻璃（backdrop-filter）+ 高斯模糊光斑 + 非线性 spring 动画
   适配桌面端与移动端，支持深/浅主题
   ============================================================ */

/* ============ 全局变量 ============ */
:root {
  --bg-body: #eef1f6;
  --bg-body-rgb: 238, 241, 246;
  --bg-sidebar: rgba(255, 255, 255, 0.66);
  --bg-card: rgba(255, 255, 255, 0.62);
  --bg-input: rgba(240, 242, 247, 0.7);
  --bg-hover: rgba(233, 236, 242, 0.7);
  --bg-user-msg: rgba(232, 240, 254, 0.85);
  --bg-ai-msg: rgba(255, 255, 255, 0.6);
  --border: rgba(226, 229, 236, 0.9);
  --text-primary: #1a1d24;
  --text-secondary: #4b5263;
  --text-muted: #8a93a6;
  --accent: #3b6eff;
  --accent-soft: rgba(59, 110, 255, 0.12);
  --accent-glow: rgba(59, 110, 255, 0.35);
  --danger: #e5484d;
  --success: #30a46c;
  --warning: #f5a623;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --sidebar-width: 280px;
  --header-height: 64px;
  --content-max-width: 820px;
  --glass-blur: blur(22px) saturate(180%);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --bg-body: #0c0e14;
  --bg-body-rgb: 12, 14, 20;
  --bg-sidebar: rgba(18, 21, 30, 0.6);
  --bg-card: rgba(26, 30, 39, 0.55);
  --bg-input: rgba(31, 36, 46, 0.65);
  --bg-hover: rgba(38, 44, 56, 0.6);
  --bg-user-msg: rgba(28, 41, 69, 0.7);
  --bg-ai-msg: rgba(26, 30, 39, 0.55);
  --border: rgba(255, 255, 255, 0.08);
  --text-primary: #edf0f8;
  --text-secondary: #b0bacf;
  --text-muted: #77829a;
  --accent: #5b8cff;
  --accent-soft: rgba(91, 140, 255, 0.16);
  --accent-glow: rgba(91, 140, 255, 0.4);
  --danger: #ff6369;
  --success: #3dd68c;
  --warning: #f7b955;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ============ 基础重置 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  height: 100%;
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  overflow: hidden;
  transition: background 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

/* ============ 高斯模糊光斑背景 ============ */
.bg-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  overflow: hidden;
}
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(90px); will-change: transform;
  animation: orbFloat 20s var(--ease-out) infinite alternate;
}
.orb-a {
  width: 46vw; height: 46vw; min-width: 320px; min-height: 320px;
  top: -12%; left: -8%;
  background: radial-gradient(circle at 30% 30%, var(--accent-glow), transparent 70%);
  opacity: 0.55;
}
.orb-b {
  width: 40vw; height: 40vw; min-width: 280px; min-height: 280px;
  top: 30%; right: -12%;
  background: radial-gradient(circle at 60% 40%, var(--accent-glow), transparent 70%);
  opacity: 0.35;
  animation-delay: -6s;
}
.orb-c {
  width: 36vw; height: 36vw; min-width: 260px; min-height: 260px;
  bottom: -14%; left: 30%;
  background: radial-gradient(circle at 50% 50%, var(--accent-glow), transparent 70%);
  opacity: 0.3;
  animation-delay: -12s;
}
@keyframes orbFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(6vw, 8vh) scale(1.18); }
}

/* ============ 应用主容器 ============ */
#app { position: relative; z-index: 1; display: flex; height: 100dvh; width: 100%; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  color: var(--text-primary); cursor: pointer; font-size: 0.9rem; font-weight: 500;
  transition: transform 0.35s var(--spring), background 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
  white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: scale(0.96); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent) 100%);
  border-color: transparent; color: #fff;
  box-shadow: 0 8px 24px var(--accent-soft);
}
.btn-primary:hover { background: var(--accent); opacity: 0.92; }
.btn-danger { color: var(--danger); }
.btn-danger:hover { background: rgba(229, 72, 77, 0.1); border-color: var(--danger); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: 9px; }
.icon-btn {
  width: 38px; height: 38px; padding: 0; justify-content: center; border-radius: 50%;
  background: transparent; border: none; color: var(--text-secondary);
  transition: transform 0.35s var(--spring), background 0.25s var(--ease-out), color 0.25s var(--ease-out);
}
.icon-btn:hover { background: var(--bg-hover); color: var(--text-primary); transform: scale(1.06); }
.icon-btn:active { transform: scale(0.92); }

/* ============ 表单 ============ */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.form-input {
  width: 100%; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 14px; color: var(--text-primary);
  outline: none; font-size: 0.95rem;
  transition: border-color 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out), background 0.25s var(--ease-out);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), 0 8px 24px var(--accent-soft);
}
.form-input::placeholder { color: var(--text-muted); }

/* ============ 认证页面 ============ */
.auth-screen { display: flex; align-items: center; justify-content: center; height: 100%; width: 100%; padding: 20px; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  padding: 40px 32px; box-shadow: var(--shadow-lg);
  animation: cardIn 0.5s var(--ease-out);
}
@keyframes cardIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo h1 { font-size: 2rem; font-weight: 700; letter-spacing: -0.5px; }
.auth-logo p { color: var(--text-secondary); margin-top: 6px; font-size: 0.9rem; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 0.85rem; color: var(--text-secondary); }
.auth-footer a { color: var(--accent); cursor: pointer; font-weight: 500; }

/* ============ 应用布局 ============ */
.app-shell { display: flex; width: 100%; height: 100%; }

/* 侧边栏（毛玻璃） */
.sidebar {
  width: var(--sidebar-width); background: var(--bg-sidebar);
  border-right: 1px solid var(--border); display: flex; flex-direction: column;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  flex-shrink: 0; min-width: 0;
  transition: width 0.32s var(--ease-out), transform 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
  z-index: 50; overflow: hidden;
}
/* PC：完全收起（不再是窄条） */
@media (min-width: 769px) {
  .sidebar.hidden { width: 0; border-right-color: transparent; }
}
.sidebar-header {
  padding: 16px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border); min-height: var(--header-height);
}
.sidebar-header h3 { font-size: 0.95rem; font-weight: 600; white-space: nowrap; opacity: 0.8; }
.sidebar-list { flex: 1; overflow-y: auto; padding: 12px 8px; }
.sidebar-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  margin-bottom: 2px; border-radius: var(--radius-sm); cursor: pointer;
  color: var(--text-secondary); transition: all 0.2s var(--ease-out);
}
.sidebar-item:hover { background: var(--bg-hover); color: var(--text-primary); transform: translateX(2px); }
.sidebar-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }
.sidebar-item-text { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 0.85rem; }
.sidebar-item-time { font-size: 0.7rem; color: var(--text-muted); white-space: nowrap; }
.sidebar-new-chat {
  margin: 12px; padding: 10px; border-radius: var(--radius-sm);
  background: var(--accent-soft); color: var(--accent); border: none;
  cursor: pointer; font-weight: 500; font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  transition: all 0.3s var(--spring);
}
.sidebar-new-chat:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }

/* 主内容区 */
.main-content { flex: 1; display: flex; flex-direction: column; min-width: 0; background: transparent; }

/* 顶部栏（毛玻璃） */
.top-bar {
  height: var(--header-height); display: flex; align-items: center;
  justify-content: space-between; padding: 0 16px;
  background: var(--bg-sidebar); border-bottom: 1px solid var(--border);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.top-bar-left, .top-bar-right { display: flex; align-items: center; gap: 8px; }
.top-bar-title { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.3px; }
.model-switch {
  display: inline-flex; align-items: center; gap: 7px;
  flex-shrink: 0; max-width: 42%;
  padding: 8px 14px; border-radius: 20px;
  background: var(--bg-input); border: 1px solid var(--border);
  color: var(--text-secondary); font-size: 0.84rem; font-weight: 500;
  cursor: pointer; white-space: nowrap; overflow: hidden;
  transition: all 0.3s var(--spring);
}
.model-switch:hover { background: var(--bg-hover); border-color: var(--accent); color: var(--text-primary); transform: translateY(-1px); }
.model-switch:active { transform: scale(0.97); }
.ms-dot { flex-shrink: 0; width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 6px var(--success); }
.model-switch .ms-name { overflow: hidden; text-overflow: ellipsis; }
.model-switch svg { flex-shrink: 0; opacity: 0.7; }

/* 页面内容 */
.page-content { flex: 1; overflow-y: auto; padding: 24px 16px; display: flex; justify-content: center; }
.content-inner { width: 100%; max-width: var(--content-max-width); }

/* 玻璃卡片 */
.glass-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 20px;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-sm);
}

/* ============ 聊天消息 ============ */
.chat-messages { display: flex; flex-direction: column; gap: 20px; padding-bottom: 20px; }
.message { display: flex; gap: 12px; animation: msgIn 0.4s var(--ease-out); }
@keyframes msgIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.message-avatar {
  flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 600;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.message-body { flex: 1; min-width: 0; }
.message-content {
  background: var(--bg-ai-msg); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 14px 18px;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  line-height: 1.7; font-size: 0.95rem; word-wrap: break-word; box-shadow: var(--shadow-sm);
}
.message-user { flex-direction: row-reverse; }
.message-user .message-avatar { background: var(--accent); color: #fff; }
.message-user .message-content { background: var(--bg-user-msg); border-color: transparent; }

/* 思考过程折叠块 */
.reasoning-block {
  margin-bottom: 8px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-input);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.reasoning-toggle {
  width: 100%; background: none; border: none; padding: 8px 12px;
  display: flex; align-items: center; gap: 6px; cursor: pointer;
  color: var(--text-secondary); font-size: 0.8rem; font-weight: 500;
  transition: background 0.2s var(--ease-out);
}
.reasoning-toggle:hover { background: var(--bg-hover); }
.reasoning-content { display: none; padding: 10px 12px; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-secondary); white-space: pre-wrap; }
.reasoning-block.open .reasoning-content { display: block; }

/* 打字指示器 */
.typing-indicator { display: flex; gap: 4px; padding: 8px 0; }
.typing-indicator span {
  width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted);
  animation: typingBounce 1.2s var(--spring) infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.18s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.36s; }
@keyframes typingBounce { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-6px); opacity: 1; } }

/* ============ 输入区 ============ */
.chat-input-area { padding: 12px 16px 20px; display: flex; justify-content: center; }
.input-wrapper {
  width: 100%; max-width: var(--content-max-width); background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius-md);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  display: flex; align-items: flex-end; gap: 8px; padding: 10px 14px;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.input-wrapper:focus-within { border-color: var(--accent); box-shadow: 0 12px 40px var(--accent-soft); }
.chat-textarea {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text-primary); font-size: 0.95rem; resize: none;
  line-height: 1.5; max-height: 120px; font-family: inherit;
}
.send-btn {
  width: 38px; height: 38px; padding: 0; border-radius: 50%;
  background: var(--accent); border: none; color: #fff;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: transform 0.35s var(--spring), opacity 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out);
  box-shadow: 0 6px 20px var(--accent-soft);
}
.send-btn:hover { opacity: 0.9; transform: scale(1.1); }
.send-btn:active { transform: scale(0.9); }
.stop-btn {
  width: 38px; height: 38px; padding: 0; border-radius: 50%;
  background: var(--danger); border: none; color: #fff;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  font-size: 1rem;
  transition: transform 0.35s var(--spring), opacity 0.25s var(--ease-out);
}
.stop-btn:hover { opacity: 0.9; transform: scale(1.1); }
.stop-btn:active { transform: scale(0.9); }

/* ============ 弹窗（毛玻璃 + spring） ============ */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.35); z-index: 100;
  display: flex; align-items: center; justify-content: center;
  animation: fadeIn 0.25s var(--ease-out);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-sheet {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); width: min(92vw, 520px); max-height: 85vh;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  overflow-y: auto; padding: 24px; box-shadow: var(--shadow-lg);
  animation: sheetIn 0.38s var(--ease-out);
}
@keyframes sheetIn { from { transform: translateY(18px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-header h3 { font-size: 1.15rem; font-weight: 600; }

/* ============ Toast 通知 ============ */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 18px; border-radius: var(--radius-sm); background: var(--bg-card);
  border: 1px solid var(--border); box-shadow: var(--shadow-md); font-size: 0.85rem;
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  animation: toastIn 0.32s var(--ease-out); max-width: 320px;
}
@keyframes toastIn { from { transform: translateX(40px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--accent); }

/* ============ 用量统计 ============ */
.usage-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.usage-card { padding: 20px; }
.usage-card-label { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; }
.usage-card-value { font-size: 1.5rem; font-weight: 700; }
.usage-bar { height: 8px; background: var(--bg-input); border-radius: 4px; margin-top: 12px; overflow: hidden; }
.usage-bar-fill { height: 100%; border-radius: 4px; transition: width 0.6s var(--ease-out); background: var(--success); }
.usage-bar-fill.warning { background: var(--warning); }
.usage-bar-fill.danger { background: var(--danger); }

/* ============ 后台管理 ============ */
.admin-section { margin-bottom: 20px; }
.admin-section h3 { font-size: 1rem; font-weight: 600; margin-bottom: 12px; }
.model-item, .user-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.model-item:last-child, .user-item:last-child { border-bottom: none; }
.model-item-info, .user-item-info { flex: 1; min-width: 0; margin-right: 12px; }
.model-item-name, .user-item-name { font-weight: 500; font-size: 0.9rem; }
.model-item-meta, .user-item-meta { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; word-break: break-all; }

/* ============ 通用辅助类 ============ */
.subtitle { color: var(--text-secondary); font-size: 0.9rem; }
.muted-text { color: var(--text-muted); }
.muted-text.empty { text-align: center; padding: 16px; }
.error-text { color: var(--danger); }
.sidebar-empty { padding: 20px; text-align: center; color: var(--text-muted); font-size: 0.85rem; }
.hint { color: var(--text-muted); font-size: 0.75rem; }
.form-actions { display: flex; gap: 8px; }

/* ============ 模型选择列表 ============ */
.model-picker-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.model-option-id { font-size: 0.8rem; color: var(--text-muted); }
.reasoning-label { font-size: 0.85rem; color: var(--text-secondary); }

/* ============ 主菜单 ============ */
.menu-list { display: flex; flex-direction: column; gap: 8px; }

/* ============ 用量行 ============ */
.usage-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); }
.usage-row:last-child { border-bottom: none; }
.usage-row-meta { color: var(--text-secondary); }

/* ============ 后台管理辅助 ============ */
.section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.multiplier { color: var(--text-muted); font-weight: 400; }
.admin-badge { color: var(--accent); }
.item-actions { display: flex; gap: 8px; flex-shrink: 0; }
.help-list { color: var(--text-secondary); font-size: 0.85rem; line-height: 1.8; padding-left: 20px; }

/* ============ 模型选择项 ============ */
.model-option {
  padding: 12px; border-radius: 10px; cursor: pointer;
  background: var(--bg-input); border: 1px solid var(--border);
  transition: all 0.25s var(--ease-out);
}
.model-option:hover { background: var(--bg-hover); transform: translateY(-1px); }
.model-option.active { border-color: var(--accent); background: var(--accent-soft); }

/* ============ 滚动条 ============ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ============ 移动端适配 ============ */
@media (max-width: 768px) {
  :root { --header-height: 56px; --content-max-width: 100%; }
  .sidebar {
    position: absolute; left: 0; top: 0; bottom: 0; width: 80vw; max-width: 320px;
    transform: translateX(-100%); box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .page-content { padding: 16px 8px; }
  .chat-input-area { padding: 8px 8px 16px; }
  .auth-card { padding: 28px 20px; }
  .modal-sheet {
    width: 100%; max-width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    margin-top: auto; margin-bottom: 0; max-height: 90vh; align-self: flex-end;
  }
  .modal-overlay { align-items: flex-end; }
  .usage-cards { grid-template-columns: 1fr; }
}

/* ============ 认证分栏页（PC：左介绍 + 右表单） ============ */
.auth-screen {
  display: grid; grid-template-columns: 1.15fr 1fr;
  height: 100%; width: 100%; padding: 0; align-items: stretch;
}
.auth-hero {
  display: flex; align-items: center; justify-content: center;
  padding: 48px clamp(24px, 5vw, 72px);
  background:
    radial-gradient(circle at 80% 15%, var(--accent-soft), transparent 40%),
    linear-gradient(160deg, var(--bg-card), var(--bg-sidebar));
  border-right: 1px solid var(--border);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.hero-inner { max-width: 480px; }
.hero-brand { display: flex; align-items: baseline; gap: 10px; margin-bottom: 26px; }
.hero-mark {
  font-size: 2rem; font-weight: 800; letter-spacing: -1px; color: var(--accent);
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
}
.hero-mark-sub { font-size: 2rem; font-weight: 300; letter-spacing: -1px; }
.hero-title { font-size: clamp(1.8rem, 3.2vw, 2.7rem); line-height: 1.22; font-weight: 700; letter-spacing: -1px; margin-bottom: 16px; }
.hero-desc { color: var(--text-secondary); line-height: 1.75; margin-bottom: 32px; font-size: 0.98rem; max-width: 420px; }
.hero-features { display: flex; flex-direction: column; gap: 18px; }
.hero-feature { display: flex; gap: 14px; align-items: flex-start; }
.hf-icon {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 12px;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.hf-text h4 { font-size: 0.96rem; font-weight: 600; margin-bottom: 3px; }
.hf-text p { font-size: 0.82rem; color: var(--text-secondary); line-height: 1.55; }
.hero-foot { margin-top: 32px; font-size: 0.78rem; color: var(--text-muted); letter-spacing: 0.02em; }

.auth-panel { display: flex; align-items: center; justify-content: center; padding: 40px 24px; }
.auth-card { max-width: 400px; padding: 36px 32px; border: 1px solid var(--border); box-shadow: var(--shadow-lg); }
.auth-card-head { margin-bottom: 26px; }
.auth-card-head h2 { font-size: 1.5rem; letter-spacing: -0.4px; }
.auth-card-head p { color: var(--text-secondary); font-size: 0.88rem; margin-top: 5px; }
.btn-block { width: 100%; }

/* ============ 设置页 ============ */
.settings-card { margin-bottom: 16px; }
.settings-card-head { display: flex; align-items: center; gap: 16px; }
.settings-avatar {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; font-weight: 700;
}
.settings-id { flex: 1; min-width: 0; }
.settings-name { font-weight: 600; font-size: 1.05rem; }
.settings-meta { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }
.settings-section-title {
  font-size: 0.8rem; color: var(--text-muted); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px;
}
.settings-nav { display: flex; flex-direction: column; gap: 2px; }
.settings-nav-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  background: none; border: none; border-radius: var(--radius-sm); width: 100%;
  color: var(--text-primary); font-size: 0.93rem; cursor: pointer; text-align: left;
  transition: background 0.2s var(--ease-out), transform 0.2s var(--spring);
}
.settings-nav-item:hover { background: var(--bg-hover); }
.settings-nav-item:active { transform: scale(0.99); }
.sn-icon { color: var(--text-secondary); display: flex; align-items: center; }
.sn-arrow { margin-left: auto; color: var(--text-muted); font-size: 1.15rem; }
.settings-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 0; }
.settings-row-title { font-size: 0.93rem; font-weight: 500; }
.settings-row-desc { font-size: 0.8rem; color: var(--text-secondary); margin-top: 3px; max-width: 520px; }
.theme-seg { display: inline-flex; background: var(--bg-input); border-radius: 11px; padding: 3px; border: 1px solid var(--border); flex-shrink: 0; }
.theme-seg-btn {
  border: none; background: transparent; padding: 6px 16px; border-radius: 8px;
  cursor: pointer; color: var(--text-secondary); font-size: 0.85rem; font-weight: 500;
  transition: all 0.25s var(--spring);
}
.theme-seg-btn.active { background: var(--accent); color: #fff; box-shadow: 0 4px 14px var(--accent-soft); }
.pw-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 14px; }
.settings-pw-form { margin-top: 4px; }

/* ============ 后台管理（Tab 化） ============ */
.admin-head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  flex-wrap: wrap; margin-bottom: 16px; padding: 18px 20px;
}
.admin-tabs {
  display: inline-flex; gap: 3px; background: var(--bg-input);
  border-radius: 12px; padding: 4px; border: 1px solid var(--border);
}
.admin-tab {
  border: none; background: transparent; padding: 8px 18px; border-radius: 9px;
  color: var(--text-secondary); font-size: 0.88rem; font-weight: 500; cursor: pointer;
  white-space: nowrap; transition: all 0.25s var(--spring);
}
.admin-tab:hover { color: var(--text-primary); }
.admin-tab.active { background: var(--accent); color: #fff; box-shadow: 0 4px 16px var(--accent-soft); }
.loading-hint { color: var(--text-muted); text-align: center; padding: 48px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 14px; }
.stat-card { padding: 18px; animation: cardIn 0.45s var(--ease-out); }
.stat-icon {
  width: 38px; height: 38px; border-radius: 10px; margin-bottom: 12px;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.stat-value { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.5px; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left; padding: 10px 12px; color: var(--text-muted); font-weight: 500;
  font-size: 0.76rem; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tbody tr { transition: background 0.15s var(--ease-out); }
.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }
.count-pill {
  background: var(--accent-soft); color: var(--accent); border-radius: 20px;
  padding: 2px 10px; font-size: 0.75rem; font-weight: 600; vertical-align: middle;
}
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }
.status-dot.ok { background: var(--success); box-shadow: 0 0 0 3px rgba(48, 164, 108, 0.15); }
.status-dot.off { background: var(--danger); box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.15); }
.lim-vals { font-variant-numeric: tabular-nums; font-size: 0.8rem; white-space: nowrap; }
.save-ok { color: var(--success); font-size: 0.85rem; font-weight: 500; }
.settings-divider { height: 1px; background: var(--border); margin: 18px 0; }
.run-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.run-item {
  padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--bg-input); border: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 4px;
}
.run-k { font-size: 0.75rem; color: var(--text-muted); }
.run-v { font-size: 0.95rem; font-weight: 600; }
.log-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.log-total td { background: var(--bg-input); font-variant-numeric: tabular-nums; }
.default-limits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; max-width: 520px; }

/* 开关 */
.switch { position: relative; display: inline-block; width: 50px; height: 28px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute; inset: 0; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 30px; cursor: pointer;
  transition: background 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}
.switch-slider::before {
  content: ''; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px;
  background: var(--text-muted); border-radius: 50%;
  transition: transform 0.3s var(--spring), background 0.25s var(--ease-out);
}
.switch input:checked + .switch-slider { background: var(--accent); border-color: transparent; box-shadow: 0 4px 14px var(--accent-soft); }
.switch input:checked + .switch-slider::before { transform: translateX(22px); background: #fff; }

/* ============ 移动端补充 ============ */
@media (max-width: 768px) {
  .auth-screen { display: flex; align-items: center; justify-content: center; padding: 16px; }
  .auth-hero { display: none; }
  .auth-panel { padding: 0; width: 100%; }
  .auth-card { padding: 28px 20px; }
  .pw-grid { grid-template-columns: 1fr; }
  .settings-row { flex-direction: column; align-items: flex-start; }
  .admin-head { flex-direction: column; align-items: flex-start; }
  .admin-tabs { width: 100%; overflow-x: auto; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .model-switch { max-width: 50%; padding: 6px 10px; font-size: 0.8rem; }
  .input-wrapper { gap: 6px; }
}

/* ============ 用量统计（Apple 风格） ============ */
:root {
  --u-card: rgba(255, 255, 255, 0.78);
  --u-border: rgba(255, 255, 255, 0.95);
  --u-border-soft: rgba(0, 0, 0, 0.06);
  --u-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
  --u-head: #1d1d1f;
  --u-muted: #6e6e73;
  --u-faint: #a1a1a6;
  --u-track: #e9e9eb;
  --u-hover: rgba(0, 0, 0, 0.05);
}
[data-theme="dark"] {
  --u-card: rgba(32, 32, 35, 0.72);
  --u-border: rgba(255, 255, 255, 0.09);
  --u-border-soft: rgba(255, 255, 255, 0.07);
  --u-shadow: 0 10px 32px rgba(0, 0, 0, 0.4);
  --u-head: #f5f5f7;
  --u-muted: #98989d;
  --u-faint: #6e6e73;
  --u-track: #2c2c2e;
  --u-hover: rgba(255, 255, 255, 0.08);
}
.u-page { display: flex; flex-direction: column; gap: 18px; }
.u-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 14px; flex-wrap: wrap; padding: 2px 4px 0; }
.u-title { font-size: 27px; font-weight: 700; letter-spacing: -0.6px; color: var(--u-head); }
.u-sub { font-size: 13px; color: var(--u-faint); margin-top: 3px; }
.u-total { font-size: 13px; color: var(--u-muted); padding-bottom: 4px; }
.u-total strong { color: var(--u-head); font-variant-numeric: tabular-nums; font-size: 15px; }
.usage-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }

.u-card {
  background: var(--u-card);
  border: 1px solid var(--u-border);
  border-radius: 18px;
  padding: 22px 22px 18px;
  box-shadow: var(--u-shadow);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
}
.u-card-head { display: flex; align-items: center; margin-bottom: 18px; }
.u-card-title { font-size: 15px; font-weight: 600; color: var(--u-head); letter-spacing: -0.2px; }
.u-count { margin-left: auto; font-size: 12px; color: var(--u-faint); }
.u-info {
  width: 14px; height: 14px; margin-left: 8px;
  border: 1px solid var(--u-faint); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font: 700 9px/1 ui-serif, Georgia, serif;
  color: var(--u-faint); cursor: pointer; user-select: none;
  transition: all 0.2s ease;
}
.u-info:hover { border-color: var(--u-muted); color: var(--u-muted); background: var(--u-hover); }
.u-body { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 16px; }
.u-percent { font-size: 34px; font-weight: 700; letter-spacing: -1px; line-height: 1; color: var(--u-head); display: flex; align-items: baseline; font-variant-numeric: tabular-nums; }
.u-sym { font-size: 20px; font-weight: 600; color: var(--u-muted); margin-left: 2px; margin-right: 4px; }
.u-label { font-size: 13px; font-weight: 400; color: var(--u-faint); }
.u-progress { height: 9px; border-radius: 5px; background: var(--u-track); overflow: hidden; margin-bottom: 14px; }
.u-progress-fill { height: 100%; border-radius: 5px; background: linear-gradient(90deg, #5b8cff, #2f67f6); transition: width 0.6s var(--ease-out); }
.u-progress-fill.mid { background: linear-gradient(90deg, #ffc14d, #ff9f0a); }
.u-progress-fill.low { background: linear-gradient(90deg, #ff6961, #ff3b30); }
.u-meta { font-size: 12.5px; color: var(--u-muted); font-variant-numeric: tabular-nums; }
.u-meta b { color: var(--u-head); }
.u-meta + .u-meta { margin-top: 3px; }
.u-faint { color: var(--u-faint); }

.u-row { padding: 12px 0; border-bottom: 1px solid var(--u-border-soft); display: flex; flex-direction: column; gap: 7px; }
.u-row:last-child { border-bottom: none; }
.u-row-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.u-row-name { font-size: 14px; font-weight: 500; color: var(--u-head); }
.u-row-val { font-size: 12.5px; color: var(--u-muted); font-variant-numeric: tabular-nums; }
.u-row-bar { height: 5px; border-radius: 3px; background: var(--u-track); overflow: hidden; }
.u-row-fill { height: 100%; border-radius: 3px; background: linear-gradient(90deg, #5b8cff, #2f67f6); transition: width 0.6s var(--ease-out); }

.u-rec { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--u-border-soft); }
.u-rec:last-child { border-bottom: none; }
.u-rec-left { min-width: 0; }
.u-rec-model { font-size: 13px; font-weight: 500; color: var(--u-head); }
.u-rec-time { font-size: 12px; color: var(--u-faint); margin-top: 2px; font-variant-numeric: tabular-nums; }
.u-rec-tok { font-size: 13px; color: var(--u-muted); flex-shrink: 0; font-variant-numeric: tabular-nums; }
.u-empty { padding: 20px 0; text-align: center; color: var(--u-faint); font-size: 13px; }

@media (max-width: 768px) {
  .u-header { flex-direction: column; align-items: flex-start; }
  .u-title { font-size: 23px; }
  .usage-cards { grid-template-columns: 1fr; }
  .u-percent { font-size: 30px; }
}

/* ============ 顶部板块导航 ============ */
.top-nav {
  display: inline-flex; gap: 2px; margin-left: 14px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 11px; padding: 3px;
}
.top-nav-btn {
  border: none; background: transparent; padding: 6px 16px;
  border-radius: 8px; color: var(--text-secondary);
  font-size: 0.85rem; font-weight: 500; cursor: pointer;
  white-space: nowrap; transition: all 0.25s var(--spring);
}
.top-nav-btn:hover { color: var(--text-primary); }
.top-nav-btn.active { background: var(--accent); color: #fff; box-shadow: 0 3px 12px var(--accent-soft); }

/* ============ API 接入面板 ============ */
.mono { font-family: ui-monospace, 'SF Mono', Consolas, 'Courier New', monospace; }
.code-box {
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 14px;
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
  font-size: 0.85rem; line-height: 1.7; overflow-x: auto;
  color: var(--text-primary); word-break: break-all;
}
.code-small { font-size: 0.8rem; margin-top: 8px; }
.chip-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
.model-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 18px; padding: 6px 12px;
  font-size: 0.83rem; cursor: pointer;
  transition: all 0.25s var(--spring);
}
.model-chip:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }
.chip-copy { font-size: 0.72rem; color: var(--text-muted); }
.api-key-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; padding: 12px 2px; border-bottom: 1px solid var(--u-border-soft);
  flex-wrap: wrap;
}
.api-key-row:last-child { border-bottom: none; }
.ak-left { min-width: 0; }
.ak-name { font-size: 0.92rem; font-weight: 600; color: var(--u-head); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ak-meta { font-size: 0.78rem; color: var(--u-faint); margin-top: 3px; }
.key-badge { font-size: 0.72rem; font-weight: 600; padding: 2px 9px; border-radius: 20px; }
.key-badge.ok { background: rgba(48, 164, 108, 0.14); color: var(--success); }
.key-badge.warn { background: rgba(245, 166, 35, 0.14); color: var(--warning); }
.key-badge.bad { background: rgba(229, 72, 77, 0.14); color: var(--danger); }
.ex-block { margin-bottom: 14px; }
.ex-head {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.86rem; font-weight: 600; color: var(--u-head); gap: 10px;
}
.copy-btn {
  border: 1px solid var(--border); background: var(--bg-input);
  color: var(--text-secondary); border-radius: 8px;
  padding: 3px 12px; font-size: 0.75rem; cursor: pointer;
  transition: all 0.2s var(--ease-out); flex-shrink: 0;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 768px) {
  .top-nav { margin-left: 8px; }
  .top-nav-btn { padding: 5px 10px; font-size: 0.8rem; }
}

/* ── 全局公告（强制阅读） ── */
.ann-sheet { padding: 22px; }
.ann-sheet .modal-header { margin-bottom: 12px; }
.ann-body {
  color: var(--text);
  line-height: 1.85;
  font-size: 0.95rem;
  max-height: 46vh;
  overflow-y: auto;
  margin-bottom: 14px;
  word-break: break-word;
}
.ann-body p { margin: 0 0 10px; }
.ann-body h1, .ann-body h2, .ann-body h3 { margin: 14px 0 8px; }
.ann-body ul, .ann-body ol { padding-left: 1.4em; margin: 0 0 10px; }
.ann-body a { color: var(--accent); }
.ann-body code {
  background: var(--bg-input); border-radius: 4px; padding: 1px 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.86em;
}
.ann-body pre {
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px; overflow-x: auto; margin: 0 0 10px;
}
.ann-timer {
  color: var(--text-tertiary, var(--text-secondary));
  font-size: 0.8rem; margin-bottom: 12px;
}
#ann-confirm:disabled { opacity: 0.55; cursor: not-allowed; }

/* 公告状态条（后台设置页） */
.ann-state {
  margin: 4px 0 0;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: 0.8rem;
  line-height: 1.5;
}
.ann-state.on {
  background: rgba(48, 164, 108, 0.10);
  color: var(--success);
  border: 1px solid rgba(48, 164, 108, 0.22);
}
.ann-state.off {
  background: rgba(180, 190, 205, 0.08);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}



/* ============================================================
   MaxMind 登录/注册页 — 左侧纯黑极简（与官网风格一致，独立于主题变量）
   注意：放在文件末尾覆盖 .auth-hero 默认玻璃风格
   ============================================================ */
.auth-screen.mx-auth {
  background: #000;
}
.auth-screen.mx-auth .auth-hero {
  background: #000;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.auth-screen.mx-auth .auth-panel { background: transparent; }

.mx-inner {
  max-width: 500px;
  display: flex; flex-direction: column;
  align-items: flex-start;
  text-align: left;
}
.mx-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 34px; }
.mx-word { color: #f5f5f7; font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; }
.mx-tag {
  color: #6e6e73; font-size: 0.62rem; letter-spacing: 0.3em;
  text-transform: uppercase; margin-left: 6px; padding-top: 2px;
}
.mx-title {
  color: #f5f5f7;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  font-weight: 600; letter-spacing: -0.03em; line-height: 1.18;
  margin-bottom: 24px;
}
.mx-desc {
  color: #a1a1a6; font-size: 0.98rem; line-height: 1.9;
  margin-bottom: 42px; max-width: 420px;
}
.mx-list {
  list-style: none; margin: 0 0 44px; padding: 26px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
  display: flex; flex-direction: column; gap: 18px;
}
.mx-list li {
  display: flex; align-items: baseline; gap: 16px;
  color: #a1a1a6; font-size: 0.9rem;
}
.mx-list li span {
  flex-shrink: 0; width: 70px;
  color: #f5f5f7; font-size: 0.78rem; letter-spacing: 0.02em;
  font-family: ui-monospace, 'SF Mono', Consolas, monospace;
}
.mx-back {
  color: #86868b; font-size: 0.84rem;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 0.2s ease;
}
.mx-back:hover { color: #f5f5f7; }

@media (max-width: 768px) {
  .auth-screen.mx-auth { display: flex; }
  .auth-screen.mx-auth .auth-hero { display: none; }
  .auth-screen.mx-auth .auth-panel { width: 100%; }
}

/* ============ 模型实时状态（API 接入页 / 后台） ============ */
.status-dot.disabled { background: var(--text-muted); opacity: 0.6; box-shadow: none; }
.status-dot.check { background: var(--warning); box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15); }
.model-status-list { display: flex; flex-direction: column; }
.model-status-row {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 2px; border-bottom: 1px solid var(--u-border-soft); flex-wrap: wrap;
}
.model-status-row:last-child { border-bottom: none; }
.model-status-row:hover { background: var(--u-border-soft); }
.msr-left { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1 1 200px; }
.msr-id { font-weight: 600; color: var(--u-head); cursor: pointer; font-size: 0.85rem; }
.msr-name {
  font-size: 0.78rem; color: var(--u-faint); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; max-width: 240px;
}
.msr-right { display: flex; align-items: center; gap: 10px; }
.msr-state { font-size: 0.76rem; font-weight: 600; max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.msr-state.ok { color: var(--success); }
.msr-state.err { color: var(--danger); }
.msr-state.warn { color: var(--warning); }
.msr-state.off { color: var(--text-muted); }
.disabled-note { color: var(--warning); }

/* ============ 后台管理 · 手机端适配 ============ */
@media (max-width: 768px) {
  /* 模型/用户行：信息区占满整行，按钮下移一行并允许换行，
     避免按钮把文字区挤到只剩几个像素宽 → 一字一行 */
  .model-item, .user-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .model-item-info, .user-item-info {
    width: 100%;
    margin-right: 0;
  }
  .model-item-meta, .user-item-meta {
    overflow-wrap: anywhere; /* 长 ID/URL 正常断行，而不是一字一行 */
  }
  .item-actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-end;
    margin-top: 10px;
  }
  .default-limits-grid { grid-template-columns: 1fr; }   /* 三格限额在手机上变一列 */
  .admin-body-scroll { overflow-x: hidden; }
}