/* =========================================================
   MStore - TDesign 风格样式
   浅色 / 深色 双主题，基于 TDesign 设计令牌
   ========================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  --td-brand: #0052d9;
  --td-brand-hover: #366ef4;
  --td-brand-active: #004ec2;
  --td-brand-light: #d9e1ff;
  --td-brand-focus: #0052d91f;
  --td-bg-page: #f5f7fa;
  --td-bg-container: #ffffff;
  --td-bg-secondary: #e9ebf0;
  --td-bg-secondary-container: #f0f1f4;
  --td-bg-component: #e9ebf0;
  --td-bg-component-disabled: #f2f3f5;
  --td-text-primary: #000000;
  --td-text-secondary: #5a5e66;
  --td-text-placeholder: #a9aeb8;
  --td-text-disabled: #c0c4cc;
  --td-text-anti: #ffffff;
  --td-border: #dcdcdc;
  --td-border-level-1: #dfdfdf;
  --td-border-level-2: #e9e9e9;
  --td-error: #e34d59;
  --td-error-light: #f9dbdb;
  --td-success: #00a870;
  --td-success-light: #d9f2e6;
  --td-warning: #ed7b2f;
  --td-warning-light: #fbe3d5;
  --td-shadow-1: 0 1px 10px rgba(0,0,0,.05), 0 4px 5px rgba(0,0,0,.08), 0 2px 4px -1px rgba(0,0,0,.12);
  --td-shadow-2: 0 3px 14px rgba(0,0,0,.05), 0 8px 10px rgba(0,0,0,.06), 0 5px 5px rgba(0,0,0,.04);
  --td-shadow-3: 0 6px 30px rgba(0,0,0,.06), 0 16px 24px rgba(0,0,0,.04), 0 8px 10px rgba(0,0,0,.04);
  --td-radius-small: 6px;
  --td-radius-default: 9px;
  --td-radius-medium: 12px;
  --td-radius-large: 16px;
  --td-radius-extra-large: 24px;
  --td-font-body: 14px;
  --td-font-body-small: 12px;
  --td-font-body-medium: 14px;
  --td-font-body-large: 16px;
  --td-font-title: 20px;
  --td-font-title-large: 24px;
  --td-nav-height: 52px;
  --td-navbar-height: 48px;
  --td-mask: rgba(0,0,0,.6);
  --td-fill-mask: rgba(0,0,0,.4);
  --td-bg-body: var(--td-bg-page);
  --td-color-page: var(--td-bg-page);
}

html[data-theme="dark"] {
  --td-brand: #366ef4;
  --td-brand-hover: #7a9bfa;
  --td-brand-active: #0052d9;
  --td-brand-light: #2a3c61;
  --td-brand-focus: #366ef41f;
  --td-bg-page: #0a0a0a;
  --td-bg-container: #1c1d1f;
  --td-bg-secondary: #2a2b2e;
  --td-bg-secondary-container: #232426;
  --td-bg-component: #2a2b2e;
  --td-bg-component-disabled: #1f2022;
  --td-text-primary: #ffffff;
  --td-text-secondary: rgba(255,255,255,.55);
  --td-text-placeholder: rgba(255,255,255,.35);
  --td-text-disabled: rgba(255,255,255,.2);
  --td-text-anti: #ffffff;
  --td-border: #4b4b4f;
  --td-border-level-1: #4b4b4f;
  --td-border-level-2: #3a3a3d;
  --td-error: #d54941;
  --td-error-light: #3f2426;
  --td-success: #00a870;
  --td-success-light: #123a2c;
  --td-warning: #ed7b2f;
  --td-warning-light: #3d2c1c;
  --td-shadow-1: 0 1px 10px rgba(0,0,0,.4), 0 4px 5px rgba(0,0,0,.3), 0 2px 4px -1px rgba(0,0,0,.4);
  --td-shadow-2: 0 3px 14px rgba(0,0,0,.4), 0 8px 10px rgba(0,0,0,.3), 0 5px 5px rgba(0,0,0,.3);
  --td-shadow-3: 0 6px 30px rgba(0,0,0,.5), 0 16px 24px rgba(0,0,0,.4), 0 8px 10px rgba(0,0,0,.4);
  --td-mask: rgba(0,0,0,.7);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { padding: 0; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: var(--td-font-body);
  color: var(--td-text-primary);
  background: var(--td-bg-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .25s ease, color .25s ease;
}
a { color: var(--td-brand); text-decoration: none; }
a:hover { color: var(--td-brand-hover); }
img { max-width: 100%; display: block; }
h1,h2,h3,h4 { margin: 0; font-weight: 600; }
p { margin: 0; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ---------- 布局容器 ---------- */
.td-body { min-height: 100vh; display: flex; flex-direction: column; }
.td-main { flex: 1; width: 100%; max-width: 720px; margin: 0 auto; padding: 16px 16px 32px; }
.td-main--narrow { max-width: 720px; }
.td-container { max-width: 720px; margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.td-navbar {
  position: sticky; top: 0; z-index: 200;
  height: var(--td-nav-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px;
  background: var(--td-bg-container);
  border-bottom: 1px solid var(--td-border-level-2);
  backdrop-filter: saturate(1.4) blur(10px);
}
.td-navbar__brand { display: flex; align-items: center; gap: 10px; }
.td-navbar__logo { width: 32px; height: 32px; border-radius: 8px; object-fit: cover; }
.td-navbar__title { font-size: 18px; font-weight: 600; }
.td-navbar__actions { display: flex; align-items: center; gap: 6px; }

/* icon button */
.td-icon-btn {
  width: 38px; height: 38px; border: none; background: transparent; color: var(--td-text-primary);
  border-radius: 50%; font-size: 20px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.td-icon-btn:hover { background: var(--td-bg-secondary); }

/* ---------- 按钮 ---------- */
.td-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 40px; padding: 0 20px; border-radius: var(--td-radius-default);
  border: 1px solid transparent; font-size: 14px; font-weight: 500; cursor: pointer;
  transition: all .2s ease; white-space: nowrap; user-select: none; line-height: 1;
}
.td-btn:active { transform: scale(.97); }
.td-btn--primary { background: var(--td-brand); color: #fff; }
.td-btn--primary:hover { background: var(--td-brand-hover); }
.td-btn--primary:active { background: var(--td-brand-active); }
.td-btn--default { background: var(--td-bg-container); color: var(--td-text-primary); border-color: var(--td-border); }
.td-btn--default:hover { border-color: var(--td-brand); color: var(--td-brand); }
.td-btn--outline { background: transparent; color: var(--td-brand); border-color: var(--td-brand); }
.td-btn--outline:hover { background: var(--td-brand-focus); }
.td-btn--danger { background: var(--td-error); color: #fff; }
.td-btn--danger-plain { background: transparent; color: var(--td-error); border-color: var(--td-error); }
.td-btn--success { background: var(--td-success); color: #fff; }
.td-btn--warning { background: var(--td-warning); color: #fff; }
.td-btn--text { background: transparent; color: var(--td-brand); border: none; }
.td-btn--text:hover { background: var(--td-brand-focus); }
.td-btn--block { display: flex; width: 100%; }
.td-btn[disabled] { opacity: .4; cursor: not-allowed; transform: none; }
.td-btn--sm { height: 32px; padding: 0 14px; font-size: 13px; }
.td-btn--lg { height: 48px; font-size: 16px; }

/* ---------- 表单控件 ---------- */
.td-input, .td-select, .td-textarea {
  width: 100%; height: 40px; padding: 0 12px;
  border: 1px solid var(--td-border); border-radius: var(--td-radius-default);
  background: var(--td-bg-container); color: var(--td-text-primary);
  transition: border-color .2s, box-shadow .2s; outline: none;
}
.td-input:focus, .td-select:focus, .td-textarea:focus {
  border-color: var(--td-brand); box-shadow: 0 0 0 2px var(--td-brand-focus);
}
.td-input::placeholder, .td-textarea::placeholder { color: var(--td-text-placeholder); }
.td-textarea { height: auto; min-height: 96px; padding: 10px 12px; resize: vertical; }
.td-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%23999' fill='none' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 32px; }
.td-form-item { margin-bottom: 18px; }
.td-form-item > label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--td-text-secondary); }
.td-form-item .req { color: var(--td-error); margin-left: 2px; }
.td-form-tip { font-size: 12px; color: var(--td-text-placeholder); margin-top: 6px; }

/* switch */
.td-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.td-switch input { opacity: 0; width: 0; height: 0; }
.td-switch__slider { position: absolute; cursor: pointer; inset: 0; background: var(--td-bg-component); border-radius: 24px; transition: .3s; }
.td-switch__slider::before { content: ""; position: absolute; width: 20px; height: 20px; left: 2px; top: 2px; background: #fff; border-radius: 50%; transition: .3s; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.td-switch input:checked + .td-switch__slider { background: var(--td-brand); }
.td-switch input:checked + .td-switch__slider::before { transform: translateX(20px); }

/* checkbox / radio */
.td-checkbox, .td-radio { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; margin-right: 18px; }
.td-checkbox input, .td-radio input { accent-color: var(--td-brand); width: 18px; height: 18px; }

/* ---------- 卡片 ---------- */
.td-card {
  background: var(--td-bg-container); border-radius: var(--td-radius-medium);
  border: 1px solid var(--td-border-level-1); overflow: hidden;
}
.td-card__header { padding: 16px; border-bottom: 1px solid var(--td-border-level-2); display: flex; align-items: center; justify-content: space-between; }
.td-card__header h3 { font-size: 16px; }
.td-card__body { padding: 16px; }
.td-card__footer { padding: 14px 16px; border-top: 1px solid var(--td-border-level-2); }

/* ---------- 标签 / 徽标 ---------- */
.td-tag {
  display: inline-flex; align-items: center; height: 24px; padding: 0 10px;
  border-radius: 4px; font-size: 12px; background: var(--td-bg-secondary-container);
  color: var(--td-text-secondary);
}
.td-tag--primary { background: var(--td-brand-light); color: var(--td-brand); }
.td-tag--success { background: var(--td-success-light); color: var(--td-success); }
.td-tag--warning { background: var(--td-warning-light); color: var(--td-warning); }
.td-tag--danger { background: var(--td-error-light); color: var(--td-error); }
.td-badge { position: relative; display: inline-flex; }
.td-badge__dot { position: absolute; top: -2px; right: -2px; min-width: 16px; height: 16px; padding: 0 4px; border-radius: 8px; background: var(--td-error); color: #fff; font-size: 10px; display: flex; align-items: center; justify-content: center; }

/* ---------- 分类 Tab ---------- */
.td-tabs { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px; scrollbar-width: none; }
.td-tabs::-webkit-scrollbar { display: none; }
.td-tab {
  flex-shrink: 0; padding: 8px 16px; border-radius: 20px; font-size: 14px;
  color: var(--td-text-secondary); cursor: pointer; background: var(--td-bg-container);
  border: 1px solid var(--td-border-level-1); transition: all .2s;
}
.td-tab.active { background: var(--td-brand-light); color: var(--td-brand); border-color: var(--td-brand-light); font-weight: 500; }

/* ---------- Hero ---------- */
.td-hero {
  position: relative; border-radius: var(--td-radius-large);
  padding: 40px 24px; margin: 12px 0 20px; overflow: hidden; color: #fff;
  background: linear-gradient(135deg, var(--td-brand) 0%, #3a6df0 100%);
}
.td-hero--image { background-size: cover; background-position: center; }
.td-hero--image::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,44,158,.82), rgba(40,90,220,.55)); }
.td-hero__inner { position: relative; z-index: 1; }
.td-hero__badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; padding: 4px 12px; border-radius: 20px; background: rgba(255,255,255,.18); margin-bottom: 14px; }
.td-hero__title { font-size: 26px; font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.td-hero__subtitle { font-size: 15px; opacity: .92; line-height: 1.6; margin-bottom: 22px; }
.td-hero__btn { display: inline-flex; align-items: center; gap: 6px; height: 44px; padding: 0 26px; border-radius: 22px; background: #fff; color: var(--td-brand); font-weight: 600; font-size: 15px; cursor: pointer; border: none; transition: transform .2s; }
.td-hero__btn:hover { transform: translateY(-2px); }

/* Hero 带图片：左右分栏布局 */
.td-hero__inner--split { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.td-hero__text { flex: 1; min-width: 0; }
.td-hero__img { flex: 0 0 42%; max-width: 320px; }
.td-hero__img img { width: 100%; height: auto; border-radius: var(--td-radius-large); box-shadow: var(--td-shadow-3); }
@media (max-width: 600px) {
  .td-hero__inner--split { flex-direction: column; align-items: flex-start; gap: 16px; }
  .td-hero__img { flex: 0 0 auto; width: 100%; max-width: 100%; }
}

/* ---------- 商品卡片 ---------- */
.td-section-title { display: flex; align-items: center; gap: 8px; font-size: 18px; margin: 26px 0 14px; }
.td-section-title::before { content: ""; width: 4px; height: 18px; border-radius: 2px; background: var(--td-brand); }
.td-product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.td-product-card {
  background: var(--td-bg-container); border-radius: var(--td-radius-medium);
  border: 1px solid var(--td-border-level-1); overflow: hidden; cursor: pointer;
  transition: transform .2s, box-shadow .2s;
}
.td-product-card:hover { transform: translateY(-3px); box-shadow: var(--td-shadow-1); }
.td-product-card__cover { aspect-ratio: 16/10; background: var(--td-bg-secondary-container); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.td-product-card__cover img { width: 100%; height: 100%; object-fit: cover; }
.td-product-card__cover .cover-fallback { font-size: 40px; color: var(--td-text-placeholder); }
.td-product-card__body { padding: 12px; }
.td-product-card__title { font-size: 15px; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 42px; }
.td-product-card__meta { display: flex; align-items: center; gap: 6px; margin-top: 8px; }
.td-product-card__desc { font-size: 12px; color: var(--td-text-secondary); margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.td-product-card__foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.td-price { color: var(--td-error); font-weight: 700; font-size: 18px; }
.td-price small { font-size: 12px; }
.td-price--origin { color: var(--td-text-placeholder); text-decoration: line-through; font-size: 12px; font-weight: 400; margin-left: 6px; }

/* ---------- 列表单元格 ---------- */
.td-cell { display: flex; align-items: center; padding: 14px 16px; background: var(--td-bg-container); border-bottom: 1px solid var(--td-border-level-2); }
.td-cell:last-child { border-bottom: none; }
.td-cell__label { flex: 1; color: var(--td-text-primary); }
.td-cell__value { color: var(--td-text-secondary); }
.td-cell__arrow { color: var(--td-text-placeholder); margin-left: 6px; }

/* ---------- Toast ---------- */
.td-toast {
  position: fixed; left: 50%; top: 50%; transform: translate(-50%,-50%); z-index: 3000;
  background: rgba(0,0,0,.78); color: #fff; padding: 14px 22px; border-radius: var(--td-radius-default);
  font-size: 14px; display: flex; align-items: center; gap: 8px; max-width: 80%;
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.td-toast.show { opacity: 1; }
.td-toast--top { top: 30%; }

/* ---------- 空状态 ---------- */
.td-empty { text-align: center; padding: 60px 20px; color: var(--td-text-placeholder); }
.td-empty__icon { font-size: 64px; margin-bottom: 12px; }
.td-empty__desc { font-size: 14px; }

/* ---------- 加载 ---------- */
.td-loading { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 40px; color: var(--td-text-secondary); }
.td-loading__spinner { width: 24px; height: 24px; border: 3px solid var(--td-border); border-top-color: var(--td-brand); border-radius: 50%; animation: tdspin 1s linear infinite; }
@keyframes tdspin { to { transform: rotate(360deg); } }

/* ---------- 弹窗 ---------- */
.td-mask { position: fixed; inset: 0; background: var(--td-mask); z-index: 1000; opacity: 0; transition: opacity .25s; pointer-events: none; }
.td-mask.show { opacity: 1; pointer-events: auto; }
.td-dialog {
  position: fixed; left: 50%; top: 50%; transform: translate(-50%,-50%) scale(.92); z-index: 1001;
  width: 84%; max-width: 360px; background: var(--td-bg-container); border-radius: var(--td-radius-extra-large);
  padding: 24px 20px 0; opacity: 0; transition: all .25s; pointer-events: none;
}
.td-dialog.show { opacity: 1; transform: translate(-50%,-50%) scale(1); pointer-events: auto; }
.td-dialog__title { text-align: center; font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.td-dialog__content { text-align: center; color: var(--td-text-secondary); font-size: 14px; margin-bottom: 20px; }
.td-dialog__actions { display: flex; border-top: 1px solid var(--td-border-level-2); margin: 0 -20px; }
.td-dialog__btn { flex: 1; height: 52px; display: flex; align-items: center; justify-content: center; font-size: 16px; cursor: pointer; }
.td-dialog__btn + .td-dialog__btn { border-left: 1px solid var(--td-border-level-2); }
.td-dialog__btn--cancel { color: var(--td-text-secondary); }
.td-dialog__btn--confirm { color: var(--td-brand); font-weight: 600; }

/* ---------- 底部 ---------- */
.td-footer { margin-top: 40px; border-top: 1px solid var(--td-border-level-2); background: var(--td-bg-container); padding: 24px 16px 32px; text-align: center; }
.td-footer__about { max-width: 720px; margin: 0 auto 14px; font-size: 13px; color: var(--td-text-secondary); line-height: 1.8; }
.td-footer__nav { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; margin-bottom: 12px; font-size: 13px; }
.td-footer__icp { font-size: 12px; color: var(--td-text-placeholder); padding-bottom: 8px; }
.td-footer__icp a { color: var(--td-text-placeholder); }

/* ---------- 商品详情 ---------- */
.td-detail-hero { background: var(--td-bg-container); border-radius: var(--td-radius-large); overflow: hidden; margin-bottom: 16px; }
.td-detail-hero__cover { width: 100%; aspect-ratio: 16/9; background: var(--td-bg-secondary-container); display: flex; align-items: center; justify-content: center; }
.td-detail-hero__cover img { width: 100%; height: 100%; object-fit: cover; }
.td-detail-hero__body { padding: 18px; }
.td-detail-hero__title { font-size: 22px; font-weight: 700; }
.td-detail-hero__meta { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.td-detail-hero__price { display: flex; align-items: baseline; gap: 10px; margin: 14px 0; }
.td-detail-hero__desc { color: var(--td-text-secondary); font-size: 14px; line-height: 1.7; }
.td-detail-section { background: var(--td-bg-container); border-radius: var(--td-radius-medium); padding: 18px 16px; margin-bottom: 16px; }
.td-detail-section h3 { font-size: 16px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.td-detail-section h3::before { content: ""; width: 4px; height: 16px; border-radius: 2px; background: var(--td-brand); }
.td-detail-content { color: var(--td-text-secondary); font-size: 14px; line-height: 1.8; word-break: break-word; }
.td-detail-content h1,.td-detail-content h2,.td-detail-content h3 { color: var(--td-text-primary); margin: 12px 0 8px; }
.td-detail-content img { border-radius: 8px; margin: 8px 0; }
.td-detail-content ul, .td-detail-content ol { padding-left: 20px; }

/* ---------- 底部操作栏 ---------- */
.td-actionbar {
  position: sticky; bottom: 0; z-index: 150; display: flex; gap: 10px; align-items: center;
  background: var(--td-bg-container); padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--td-border-level-2);
}
.td-actionbar .td-btn { flex: 1; }

/* ---------- 评分 ---------- */
.td-rate { display: inline-flex; gap: 4px; color: var(--td-warning); font-size: 18px; letter-spacing: 2px; }
.td-rate .off { color: var(--td-bg-component); }

/* ---------- 步骤条 ---------- */
.td-steps { display: flex; align-items: center; margin: 20px 0; }
.td-step { flex: 1; text-align: center; font-size: 12px; color: var(--td-text-placeholder); position: relative; }
.td-step__dot { width: 24px; height: 24px; border-radius: 50%; background: var(--td-bg-component); color: var(--td-text-secondary); display: flex; align-items: center; justify-content: center; margin: 0 auto 6px; font-size: 12px; }
.td-step.active .td-step__dot { background: var(--td-brand); color: #fff; }
.td-step.active { color: var(--td-brand); }
.td-step.done .td-step__dot { background: var(--td-success); color: #fff; }

/* ---------- 表格 ---------- */
.td-table { width: 100%; border-collapse: collapse; background: var(--td-bg-container); }
.td-table th, .td-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--td-border-level-2); font-size: 14px; }
.td-table th { background: var(--td-bg-secondary-container); font-weight: 600; color: var(--td-text-secondary); white-space: nowrap; }
.td-table tr:hover td { background: var(--td-bg-secondary-container); }

/* ---------- 后台布局 ---------- */
.td-admin { min-height: 100vh; }
.td-admin__sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: 220px; background: var(--td-bg-container); border-right: 1px solid var(--td-border-level-1); display: flex; flex-direction: column; z-index: 100; transition: transform .25s; }
.td-admin__brand { display: flex; align-items: center; gap: 10px; padding: 18px 16px; border-bottom: 1px solid var(--td-border-level-2); }
.td-admin__brand img { width: 32px; height: 32px; border-radius: 8px; }
.td-admin__nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.td-admin__nav a { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: var(--td-radius-default); color: var(--td-text-primary); font-size: 14px; margin-bottom: 4px; }
.td-admin__nav a:hover { background: var(--td-bg-secondary-container); }
.td-admin__nav a.active { background: var(--td-brand-light); color: var(--td-brand); font-weight: 500; }
.td-admin__main { margin-left: 220px; padding: 20px; }
.td-admin__topbar { position: sticky; top: 0; z-index: 90; display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; background: var(--td-bg-page); border-bottom: 1px solid var(--td-border-level-2); margin-bottom: 20px; }
.td-admin__title { font-size: 20px; font-weight: 600; }
.td-admin__panel { background: var(--td-bg-container); border-radius: var(--td-radius-medium); padding: 20px; border: 1px solid var(--td-border-level-1); margin-bottom: 20px; }
.td-admin__panel h3 { font-size: 16px; margin-bottom: 16px; }
.td-admin__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.td-stat { background: var(--td-bg-container); border: 1px solid var(--td-border-level-1); border-radius: var(--td-radius-medium); padding: 18px; }
.td-stat__num { font-size: 26px; font-weight: 700; color: var(--td-brand); }
.td-stat__label { color: var(--td-text-secondary); font-size: 13px; margin-top: 4px; }

/* ---------- 工具类 ---------- */
.td-row { display: flex; align-items: center; gap: 10px; }
.td-row--between { justify-content: space-between; }
.td-flex { display: flex; }
.td-flex--end { justify-content: flex-end; }
.td-flex-1 { flex: 1; }
.td-mt-8 { margin-top: 8px; } .td-mt-12 { margin-top: 12px; } .td-mt-16 { margin-top: 16px; } .td-mt-24 { margin-top: 24px; }
.td-mb-8 { margin-bottom: 8px; } .td-mb-12 { margin-bottom: 12px; } .td-mb-16 { margin-bottom: 16px; }
.td-ml-8 { margin-left: 8px; } .td-mr-8 { margin-right: 8px; }
.td-ml8 { margin-left: 8px; } .td-mr8 { margin-right: 8px; }
.td-text-secondary { color: var(--td-text-secondary); }
.td-text-primary { color: var(--td-text-primary); }
.td-text-danger { color: var(--td-error); }
.td-text-success { color: var(--td-success); }
.td-text-center { text-align: center; }
.td-text-small { font-size: 12px; }
.td-alert { padding: 12px 14px; border-radius: var(--td-radius-default); font-size: 14px; }
.td-alert--info { background: var(--td-brand-light); color: var(--td-brand); }
.td-alert--success { background: var(--td-success-light); color: var(--td-success); }
.td-alert--warning { background: var(--td-warning-light); color: var(--td-warning); }
.td-alert--error { background: var(--td-error-light); color: var(--td-error); }
.td-divider { height: 1px; background: var(--td-border-level-2); margin: 16px 0; }
.td-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; background: var(--td-bg-component); }
.td-avatar--sm { width: 28px; height: 28px; }

/* ---------- 安装页 ---------- */
.install-wrap { min-height: 100vh; display: flex; align-items: flex-start; justify-content: center; padding: 40px 16px; }
.install-card { width: 100%; max-width: 560px; background: var(--td-bg-container); border-radius: var(--td-radius-large); box-shadow: var(--td-shadow-2); overflow: hidden; }
.install-head { padding: 32px 28px 20px; text-align: center; }
.install-head h1 { font-size: 22px; margin: 12px 0 6px; }
.install-head p { color: var(--td-text-secondary); font-size: 14px; }
.install-logo { width: 56px; height: 56px; margin: 0 auto; border-radius: 14px; background: var(--td-brand); color: #fff; font-size: 24px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.install-logo span { font-size: 12px; font-weight: 400; margin-top: 18px; margin-left: -22px; }
.install-section { padding: 20px 28px; border-top: 1px solid var(--td-border-level-2); }
.install-section h2 { font-size: 16px; margin-bottom: 16px; }
.install-section .req { color: var(--td-error); }
.install-section .opt { color: var(--td-text-placeholder); font-weight: 400; font-size: 13px; }
.section-tip { font-size: 13px; color: var(--td-text-placeholder); margin-bottom: 14px; }
.check-table { width: 100%; border-collapse: collapse; }
.check-table td { padding: 8px 6px; border-bottom: 1px solid var(--td-border-level-2); font-size: 14px; }
.check-table .c-ok { color: var(--td-success); text-align: center; }
.check-table .c-bad { color: var(--td-error); text-align: center; }
.check-table .c-cur { text-align: right; color: var(--td-text-placeholder); font-size: 12px; }
.env-fail { color: var(--td-error); margin-top: 12px; font-size: 13px; }
.install-errors { background: var(--td-error-light); color: var(--td-error); padding: 14px 28px; font-size: 14px; }
.install-errors p { margin-bottom: 4px; }
.install-submit { padding: 20px 28px 28px; border-top: 1px solid var(--td-border-level-2); }
.checkbox-item { display: flex; align-items: center; gap: 8px; }
.install-success { padding: 48px 28px; text-align: center; }
.success-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--td-success-light); color: var(--td-success); font-size: 32px; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.install-success h2 { font-size: 22px; margin-bottom: 8px; }
.install-success p { color: var(--td-text-secondary); margin-bottom: 24px; }
.btn-row { display: flex; gap: 12px; justify-content: center; }
.btn-row .td-btn { min-width: 120px; }
.install-alert { padding: 40px 28px; text-align: center; }
.install-alert p { margin-bottom: 20px; color: var(--td-text-secondary); }
.install-alert code { background: var(--td-bg-secondary-container); padding: 2px 6px; border-radius: 4px; }
/* 安装页表单字段（.form-item 与后台 .td-form-item 对齐） */
.form-item { margin-bottom: 18px; }
.form-item > label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--td-text-secondary); }
.form-tip { font-size: 12px; color: var(--td-text-placeholder); margin-top: 6px; }
.success-tip { font-size: 13px; color: var(--td-text-secondary); margin-bottom: 20px; }
.redirect-box {
  padding: 10px 12px; border: 1px solid var(--td-border-level-1); border-radius: var(--td-radius-default);
  background: var(--td-bg-secondary-container); font-size: 14px; color: var(--td-text-primary);
  word-break: break-all; user-select: all; line-height: 1.5;
}

/* ---------- 登录页 ---------- */
.td-login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.td-login-card { width: 100%; max-width: 400px; background: var(--td-bg-container); border-radius: var(--td-radius-large); box-shadow: var(--td-shadow-2); padding: 36px 30px; }
.td-login-logo { width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 14px; object-fit: cover; background: var(--td-bg-component); }
.td-login-title { text-align: center; font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.td-login-sub { text-align: center; color: var(--td-text-secondary); font-size: 13px; margin-bottom: 24px; }

/* ---------- 响应式 ---------- */
@media (max-width: 600px) {
  .td-main { padding: 12px 12px 32px; }
  .td-product-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .td-hero { padding: 30px 20px; }
  .td-hero__title { font-size: 22px; }
  .td-admin__sidebar { transform: translateX(-100%); }
  .td-admin__sidebar.open { transform: translateX(0); box-shadow: var(--td-shadow-3); }
  .td-admin__main { margin-left: 0; padding: 12px; }
  .td-admin__topbar { padding: 12px; }
}

@media (min-width: 601px) {
  .td-admin__toggle { display: none; }
}

/* 后台移动端汉堡按钮 */
.td-hamburger { display: none; }
@media (max-width: 600px) {
  .td-hamburger { display: inline-flex; }
}

/* 笑脸 icon 用简单内联 */
.td-app-icon { font-size: 40px; }