:root {
  --blue: #007aff;
  --blue-2: #4da3ff;
  --green: #34c759;
  --red: #ff3b30;
  --orange: #ff9500;
  --gray: #8e8e93;
  --ink: #1c1c1e;
  --ink-2: #48484a;
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-brd: rgba(255, 255, 255, 0.75);
  --glass-hl: inset 0 1px 0 rgba(255, 255, 255, 0.65);
  --shadow: 0 10px 34px rgba(31, 38, 135, 0.12);
  --shadow-lg: 0 18px 50px rgba(31, 38, 135, 0.18);
  --radius: 22px;
  --radius-sm: 14px;
  --radius-lg: 28px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; }

/* ===== 流畅度优化（最终升级）===== */
html, body { overscroll-behavior-y: contain; }   /* 禁止滚动链与下拉刷新抖动 */
body { scrollbar-width: thin; scrollbar-color: rgba(0,0,0,0.18) transparent; }
* { -webkit-overflow-scrolling: touch; }            /* iOS 惯性滚动 */

/* 高频动画/固定层提升为合成层，避免重排卡顿（仅作用于无自身 transform 的元素） */
.bottom-nav, .buy-bar, .modal { will-change: transform, opacity; transform: translateZ(0); backface-visibility: hidden; }
.toast { will-change: transform, opacity; }

/* 商品卡片：hover 时轻微上浮（不再用 content-visibility，避免部分浏览器不重绘卡片内文字/价格） */
.grid .card { will-change: transform; }

/* 长列表（订单/后台表格）：不使用 content-visibility，避免表格内文字/金额偶发不重绘 */


/* 自定义滚动条（webkit）让视觉更顺滑 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.16); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.28); }
::-webkit-scrollbar-track { background: transparent; }

body {
  color: var(--ink);
  min-height: 100vh;
  font-family: var(--font);
  background: linear-gradient(135deg, #eaf2ff 0%, #f3edff 48%, #e9fbf2 100%);
  position: relative;
  overflow-x: hidden;
  padding-bottom: 70px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 背景柔光球，衬托玻璃质感 */
body::before, body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  z-index: 0;
  opacity: 0.5;
  pointer-events: none;
}
body::before { width: 460px; height: 460px; background: #7ab8ff; top: -130px; left: -90px; }
body::after { width: 400px; height: 400px; background: #b69bff; bottom: -110px; right: -70px; }

.app { position: relative; z-index: 1; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* 顶部导航：悬浮玻璃药丸 */
.topbar {
  position: sticky; top: 10px; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--glass-brd);
  border-radius: 20px;
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; letter-spacing: 0.3px; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 11px; overflow: hidden;
  display: grid; place-items: center; box-shadow: 0 6px 16px rgba(0,122,255,0.35);
}
.logo-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nav-links { display: flex; gap: 8px; }
.nav-links a {
  text-decoration: none; color: var(--ink); font-size: 14px; font-weight: 600;
  padding: 8px 14px; border-radius: 13px; background: var(--glass-bg);
  border: 1px solid var(--glass-brd); backdrop-filter: blur(12px);
  display: inline-flex; align-items: center; gap: 6px; transition: all 0.2s ease;
}
.nav-links a:hover { background: rgba(255,255,255,0.85); transform: translateY(-1px); }

/* 顶部栏液态玻璃高光 */
.topbar { overflow: hidden; }
.topbar::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 55%;
  background: linear-gradient(180deg, rgba(255,255,255,0.5), rgba(255,255,255,0));
  pointer-events: none; border-radius: inherit;
}

/* 玻璃卡片 · 液态玻璃 */
.glass {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.72), rgba(255,255,255,0.46)),
    radial-gradient(130% 90% at 0% 0%, rgba(122,184,255,0.22), transparent 55%),
    radial-gradient(130% 90% at 100% 100%, rgba(182,155,255,0.20), transparent 55%);
  border: 1px solid var(--glass-brd);
  border-radius: var(--radius);
  box-shadow: var(--shadow), var(--glass-hl), inset 0 0 0 1px rgba(255,255,255,0.5), inset 0 1px 1px rgba(255,255,255,0.6);
  backdrop-filter: saturate(220%) blur(30px);
  -webkit-backdrop-filter: saturate(220%) blur(30px);
}
/* 液态玻璃镜面高光 */
.glass::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 52%;
  background: linear-gradient(180deg, rgba(255,255,255,0.65), rgba(255,255,255,0));
  border-radius: inherit; pointer-events: none; z-index: 1;
}
/* 回退：渲染器不支持 backdrop-filter 时，用更实的磨砂白 + 环境光斑，仍有玻璃质感 */
@supports not (backdrop-filter: blur(2px)) {
  .glass {
    background:
      linear-gradient(135deg, rgba(255,255,255,0.94), rgba(255,255,255,0.80)),
      radial-gradient(130% 90% at 0% 0%, rgba(122,184,255,0.20), transparent 55%),
      radial-gradient(130% 90% at 100% 100%, rgba(182,155,255,0.18), transparent 55%);
  }
  [data-theme="dark"] .glass {
    background: linear-gradient(135deg, rgba(46,46,54,0.96), rgba(30,30,38,0.92));
  }
}

/* 商品网格 */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; margin-top: 14px; }
.card { overflow: hidden; transition: transform 0.28s cubic-bezier(.2,.8,.2,1), box-shadow 0.28s ease; cursor: pointer; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg), var(--glass-hl); }
.card .thumb {
  height: 152px; background: linear-gradient(135deg, #e3edff, #efe6ff);
  display: grid; place-items: center; color: var(--blue); position: relative; overflow: hidden;
}
.card .thumb::after { content:""; position:absolute; inset:0; background: radial-gradient(120% 80% at 50% 0%, rgba(255,255,255,0.5), transparent 60%); }
.card .thumb img { display: block; width: 100%; height: 152px; object-fit: cover; object-position: center; }
.card .body { position: relative; z-index: 2; padding: 14px 16px 16px; }
.card .cat { font-size: 12px; color: var(--gray); font-weight: 600; }
.card .name { font-size: 16px; font-weight: 600; margin: 4px 0 10px; line-height: 1.35; }
.card .foot { display: flex; align-items: center; justify-content: space-between; }
.price { color: var(--red); font-weight: 700; font-size: 19px; letter-spacing: 0.2px; }
.price small { font-size: 12px; font-weight: 600; }
.stock { font-size: 12px; color: var(--gray); }

/* 按钮 */
.btn {
  border: none; cursor: pointer; font-family: inherit; font-weight: 600; font-size: 15px;
  padding: 12px 18px; border-radius: var(--radius-sm); display: inline-flex; align-items: center; gap: 7px;
  transition: transform 0.15s ease, opacity 0.2s ease, box-shadow 0.2s ease; justify-content: center;
}
.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(0,122,255,0.3); }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; box-shadow: 0 8px 20px rgba(0,122,255,0.35); }
.btn-primary:hover { box-shadow: 0 10px 26px rgba(0,122,255,0.45); }
.btn-green { background: linear-gradient(135deg, #30d158, var(--green)); color: #fff; box-shadow: 0 8px 20px rgba(52,199,89,0.35); }
.btn-green:hover { box-shadow: 0 10px 26px rgba(52,199,89,0.45); }
.btn-ghost { background: var(--glass-bg); color: var(--ink); border: 1px solid var(--glass-brd); }
.btn-ghost:hover { background: rgba(255,255,255,0.85); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* 通用布局 */
.page-head { margin: 20px 0 4px; }
.page-head h1 { font-size: 27px; font-weight: 700; letter-spacing: 0.3px; }
.page-head p { color: var(--gray); margin-top: 6px; font-size: 14px; }

.row { display: flex; gap: 16px; flex-wrap: wrap; }
.col { flex: 1; min-width: 280px; }

/* 表单 */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--gray); margin-bottom: 6px; }
.input, .textarea, select.input {
  width: 100%; font-family: inherit; font-size: 15px; color: var(--ink);
  padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--glass-brd);
  background: rgba(255,255,255,0.72); outline: none; transition: border 0.2s, box-shadow 0.2s;
}
.input:focus, .textarea:focus, select.input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(0,122,255,0.16);
}
.textarea { resize: vertical; min-height: 90px; }

/* 详情页 */
.detail { display: grid; grid-template-columns: 320px 1fr; gap: 22px; margin-top: 16px; }
.detail .hero { height: 300px; border-radius: var(--radius); overflow: hidden; display: grid; place-items: center; background: linear-gradient(135deg,#e3edff,#efe6ff); color: var(--blue); position: relative; }
.detail .hero::after { content:""; position:absolute; inset:0; background: radial-gradient(120% 80% at 50% 0%, rgba(255,255,255,0.5), transparent 60%); }
.detail .hero img { display: block; width: 100%; height: 300px; object-fit: cover; object-position: center; }
.qty { display: inline-flex; align-items: center; gap: 0; border: 1px solid var(--glass-brd); border-radius: var(--radius-sm); overflow: hidden; background: rgba(255,255,255,0.72); }
.qty button { width: 42px; height: 42px; border: none; background: transparent; font-size: 22px; cursor: pointer; color: var(--blue); transition: background 0.2s; }
.qty button:hover { background: rgba(0,122,255,0.08); }
.qty input { width: 56px; height: 42px; text-align: center; border: none; background: transparent; font-size: 16px; font-weight: 600; }

/* 收款码 */
.pay-tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.pay-tab { flex: 1; padding: 12px; border-radius: var(--radius-sm); text-align: center; cursor: pointer; font-weight: 600; background: rgba(255,255,255,0.6); border: 1px solid var(--glass-brd); transition: all 0.2s ease; }
.pay-tab:hover { background: rgba(255,255,255,0.85); }
.pay-tab.active { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; border-color: transparent; box-shadow: 0 8px 20px rgba(0,122,255,0.3); }
.qr-box { display: grid; place-items: center; padding: 18px; min-height: 240px; }
.qr-box img { width: 210px; height: 210px; border-radius: 16px; background: #fff; padding: 10px; box-shadow: var(--shadow); }
.qr-placeholder { color: var(--gray); text-align: center; font-size: 14px; }

/* 卡密 */
.codes-box { padding: 16px; margin-top: 8px; }
.code-item { display: flex; align-items: center; justify-content: space-between; padding: 13px 15px; background: rgba(255,255,255,0.72); border: 1px solid var(--glass-brd); border-radius: var(--radius-sm); margin-bottom: 10px; font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 15px; transition: border 0.2s; }
.code-item:hover { border-color: var(--blue); }
.code-item:last-child { margin-bottom: 0; }

/* 表格（后台） */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid rgba(0,0,0,0.06); font-size: 14px; }
th { color: var(--gray); font-weight: 600; font-size: 12px; letter-spacing: 0.3px; }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: rgba(255,255,255,0.4); }
.tag { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
.tag-on { background: rgba(52,199,89,0.15); color: var(--green); }
.tag-off { background: rgba(142,142,147,0.18); color: var(--gray); }
.tag-paid { background: rgba(52,199,89,0.15); color: var(--green); }
.tag-pending { background: rgba(255,149,0,0.16); color: var(--orange); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 14px; margin: 14px 0; }
.stat { padding: 18px; transition: transform 0.2s ease; }
.stat:hover { transform: translateY(-3px); }
.stat .v { font-size: 28px; font-weight: 700; letter-spacing: 0.3px; }
.stat .k { color: var(--gray); font-size: 13px; margin-top: 4px; }

.section { padding: 20px; margin-top: 16px; }
.section h2 { font-size: 18px; margin-bottom: 14px; letter-spacing: 0.2px; }

.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: rgba(28,28,30,0.92); color: #fff; padding: 12px 20px; border-radius: 14px;
  font-size: 14px; z-index: 100; opacity: 0; transition: all 0.3s; pointer-events: none;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25); backdrop-filter: blur(10px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.empty { text-align: center; color: var(--gray); padding: 50px 0; font-size: 14px; }

.icon { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-sm { width: 15px; height: 15px; }

@media (max-width: 720px) {
  .detail { grid-template-columns: 1fr; }
  .detail .hero { height: 220px; }
  .detail .hero img { height: 220px; }
}

/* 购物车角标 */
.cart-link { position: relative; }
.badge {
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px;
  background: var(--red); color: #fff; font-size: 11px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center; margin-left: 2px;
  box-shadow: 0 2px 6px rgba(255,59,48,0.4);
}

/* 搜索 + 排序 */
.controls { display: flex; gap: 10px; align-items: center; padding: 10px 14px; margin-top: 14px; }
.search-box { flex: 1; display: flex; align-items: center; gap: 8px; color: var(--gray); }
.search-box input { border: none; background: transparent; outline: none; font-family: inherit; font-size: 15px; flex: 1; color: var(--ink); }
.sort-select { width: auto; flex: none; padding: 10px 12px; cursor: pointer; display: none; }

/* 分类 chips */
.cats { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0 4px; }
.chip { font-size: 13px; font-weight: 600; padding: 7px 14px; border-radius: 20px; cursor: pointer; background: var(--glass-bg); border: 1px solid var(--glass-brd); color: var(--ink); transition: all 0.2s ease; }
.chip:hover { background: rgba(255,255,255,0.85); }
.chip.active { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; border-color: transparent; box-shadow: 0 6px 16px rgba(0,122,255,0.3); }

/* 发货方式标签 */
.dtype { font-size: 11px; font-weight: 600; color: var(--blue); background: rgba(0,122,255,0.1); padding: 2px 8px; border-radius: 10px; display: inline-block; margin-top: 6px; }
.dtype-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--blue); background: rgba(0,122,255,0.12); padding: 4px 12px; border-radius: 12px; }

/* 商品详情按钮行 */
.btn-row { display: flex; gap: 10px; margin-top: 18px; }
.btn-row .btn { flex: 1; }

/* 购物车行 */
.cart-row { display: flex; gap: 12px; align-items: center; }
.qty-sm button { width: 32px; height: 32px; font-size: 18px; }
.qty-sm input { width: 42px; height: 32px; }

/* 销售图表 */
.chart { display: flex; align-items: flex-end; gap: 10px; height: 180px; padding-top: 10px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; }
.bar { width: 60%; max-width: 38px; background: linear-gradient(180deg, var(--blue), var(--blue-2)); border-radius: 8px 8px 0 0; min-height: 2px; transition: height 0.4s ease; box-shadow: 0 4px 12px rgba(0,122,255,0.25); }
.bar-val { font-size: 11px; color: var(--gray); margin-bottom: 4px; height: 14px; }
.bar-label { font-size: 11px; color: var(--gray); margin-top: 6px; }

/* 低库存标红 */
td.low, .low { color: var(--red); font-weight: 700; }

/* 警告条 */
.warn { display: flex; align-items: center; gap: 8px; background: rgba(255,59,48,0.1); color: var(--red); border: 1px solid rgba(255,59,48,0.25); padding: 10px 12px; border-radius: 12px; font-size: 13px; line-height: 1.5; }
.warn .icon { flex: none; color: var(--orange); }

/* 促销价 / 划线原价 */
.price-wrap { display: inline-flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.price.sale { color: var(--red); }
.old { color: var(--gray); text-decoration: line-through; font-size: 13px; font-weight: 500; }

/* 限购提示 */
.limit { font-size: 11px; font-weight: 600; color: var(--orange); background: rgba(255,149,0,0.12); padding: 2px 8px; border-radius: 10px; display: inline-block; margin-top: 8px; }
.limit-note { font-size: 13px; font-weight: 600; color: var(--orange); background: rgba(255,149,0,0.12); padding: 6px 12px; border-radius: 12px; display: inline-block; margin: 4px 0 0; }

/* 收款金额框 */
.pay-amount { text-align: center; background: rgba(0,122,255,0.06); border: 1px solid rgba(0,122,255,0.18); border-radius: 16px; padding: 14px 10px; margin-bottom: 14px; color: var(--gray); font-size: 13px; }
.pay-amount .big { display: block; font-size: 30px; font-weight: 800; color: var(--ink); margin-top: 4px; letter-spacing: 0.5px; }
.pay-amount .big::before { content: "¥"; font-size: 18px; font-weight: 600; margin-right: 2px; }

/* 入场动画（iOS 手感：淡入 + 上浮） */
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.card, .glass.section, .stats .stat, .glass.stat {
  animation: fadeUp 0.5s cubic-bezier(.2,.8,.2,1) both;
}
.grid .card:nth-child(2) { animation-delay: 0.05s; }
.grid .card:nth-child(3) { animation-delay: 0.1s; }
.grid .card:nth-child(4) { animation-delay: 0.15s; }
.grid .card:nth-child(5) { animation-delay: 0.2s; }
.grid .card:nth-child(6) { animation-delay: 0.25s; }
.grid .card:nth-child(n+7) { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .card, .glass.section, .stats .stat, .glass.stat { animation: none; }
  html { scroll-behavior: auto; }
}

/* ===== 新增 iOS 控件 ===== */

/* 分段控制器（替代下拉排序） */
.segmented { display: inline-flex; padding: 3px; gap: 3px; background: rgba(255,255,255,0.5); border: 1px solid var(--glass-brd); border-radius: 13px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.segmented button { border: none; background: transparent; font-family: inherit; font-size: 14px; font-weight: 600; color: var(--ink-2); padding: 8px 16px; border-radius: 10px; cursor: pointer; transition: all 0.25s cubic-bezier(.2,.8,.2,1); white-space: nowrap; }
.segmented button:hover { color: var(--ink); }
.segmented button.active { background: rgba(255,255,255,0.92); color: var(--blue); box-shadow: 0 4px 12px rgba(0,0,0,0.10); }
.segmented button:focus-visible { outline: none; box-shadow: 0 0 0 4px rgba(0,122,255,0.25); }

/* iOS 开关（后台商品上/下架等） */
.switch { position: relative; display: inline-block; width: 51px; height: 31px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; cursor: pointer; inset: 0; background: rgba(120,120,128,0.32); border-radius: 31px; transition: background 0.3s ease; }
.switch .slider::before { content: ""; position: absolute; height: 27px; width: 27px; left: 2px; top: 2px; background: #fff; border-radius: 50%; transition: transform 0.3s cubic-bezier(.2,.8,.2,1); box-shadow: 0 3px 8px rgba(0,0,0,0.25); }
.switch input:checked + .slider { background: var(--green); }
.switch input:checked + .slider::before { transform: translateX(20px); }
.switch input:focus-visible + .slider { box-shadow: 0 0 0 4px rgba(52,199,89,0.3); }

/* 双滑块价格筛选 */
.range-box { padding: 14px 16px 16px; margin-top: 12px; }
.range-head { display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-weight: 600; color: var(--gray); margin-bottom: 12px; }
.range-head b { color: var(--ink); font-weight: 700; }
.range-wrap { position: relative; height: 34px; }
.range-track { position: absolute; top: 50%; left: 0; right: 0; height: 5px; transform: translateY(-50%); background: rgba(120,120,128,0.25); border-radius: 5px; }
.range-fill { position: absolute; top: 50%; height: 5px; transform: translateY(-50%); background: linear-gradient(90deg, var(--blue), var(--blue-2)); border-radius: 5px; }
.range { position: absolute; top: 0; left: 0; width: 100%; height: 34px; margin: 0; background: none; pointer-events: none; -webkit-appearance: none; appearance: none; }
.range::-webkit-slider-thumb { -webkit-appearance: none; appearance: none; pointer-events: auto; width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 1px solid rgba(0,0,0,0.06); box-shadow: 0 3px 8px rgba(0,0,0,0.22); cursor: pointer; }
.range::-moz-range-thumb { pointer-events: auto; width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 1px solid rgba(0,0,0,0.06); box-shadow: 0 3px 8px rgba(0,0,0,0.22); cursor: pointer; }
.range::-webkit-slider-runnable-track { background: none; }
.range::-moz-range-track { background: none; }

/* ============================================================
   对标大厂：设计系统增强 + 移动端组件
   ============================================================ */

/* 选区与滚动条（细节质感） */
::selection { background: rgba(0,122,255,0.18); }
* { scrollbar-width: thin; scrollbar-color: rgba(120,120,128,0.4) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { background: rgba(120,120,128,0.35); border-radius: 8px; }
*::-webkit-scrollbar-thumb:hover { background: rgba(120,120,128,0.55); }

/* 首页 Hero 横幅 */
.home-hero { padding: 26px 24px; margin-top: 14px; overflow: hidden; position: relative; }
.home-hero .hero-orb { position: absolute; width: 230px; height: 230px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, rgba(77,163,255,0.55), rgba(182,155,255,0.12) 70%); filter: blur(6px); top: -100px; right: -70px; pointer-events: none; }
.hero-kicker { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.4px; color: var(--blue); background: rgba(0,122,255,0.12); padding: 5px 12px; border-radius: 20px; }
.hero-title { font-size: clamp(22px, 4.6vw, 30px); font-weight: 800; letter-spacing: -0.3px; margin: 14px 0 8px; line-height: 1.25; }
.hero-sub { color: var(--ink-2); font-size: 14px; line-height: 1.6; max-width: 34ch; }

/* 分类吸顶（移动端横向滚动） */
.cats { position: sticky; top: 74px; z-index: 15; background: linear-gradient(180deg, rgba(234,242,255,0.92), rgba(243,237,255,0.72)); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding: 10px 0; margin: 14px -16px 4px; }
.cats::-webkit-scrollbar { display: none; }
@media (max-width: 720px) {
  .cats { display: flex; gap: 8px; overflow-x: auto; flex-wrap: nowrap; padding: 10px 16px; -webkit-overflow-scrolling: touch; }
  .chip { flex: none; }
}

/* 商品卡角标 */
.card .thumb { position: relative; }
.card .badges { position: absolute; top: 10px; left: 10px; display: flex; gap: 6px; flex-wrap: wrap; z-index: 2; }
.badge-sale, .badge-limit, .badge-low, .badge-new {
  font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 9px; color: #fff; line-height: 1.4;
  box-shadow: 0 2px 6px rgba(0,0,0,0.12); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.badge-sale { background: linear-gradient(135deg, #ff5e3a, #ff2d55); }
.badge-limit { background: linear-gradient(135deg, #ff9500, #ff8000); }
.badge-low { background: linear-gradient(135deg, #ff3b30, #ff6482); }
.badge-new { background: linear-gradient(135deg, #30d158, #34c759); }
.badge-hot { background: linear-gradient(135deg, #ff375f, #ff2d55); }

/* 骨架屏 */
.skeleton { position: relative; overflow: hidden; }
.skeleton::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent); animation: shimmer 1.3s infinite; }
@keyframes shimmer { 100% { transform: translateX(100%); } }
.sk-thumb { height: 152px; background: rgba(0,0,0,0.05); }
.sk-line { height: 12px; border-radius: 6px; background: rgba(0,0,0,0.06); margin-top: 10px; }
.sk-line.w70 { width: 70%; } .sk-line.w40 { width: 40%; } .sk-line.w50 { width: 50%; }

/* 空状态插画 */
.empty-illu { width: 118px; height: 118px; margin: 0 auto 14px; display: block; color: var(--gray); opacity: 0.65; }

/* 移动端底部 Tab 栏 */
.bottom-nav {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: none;
  justify-content: space-around; align-items: stretch;
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,0.72); border-top: 1px solid var(--glass-brd);
  backdrop-filter: saturate(180%) blur(22px); -webkit-backdrop-filter: saturate(180%) blur(22px);
  box-shadow: 0 -8px 30px rgba(31,38,135,0.10);
}
.bottom-nav .bn-item {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  text-decoration: none; color: var(--gray); font-size: 11px; font-weight: 600;
  padding: 6px 0; border-radius: 14px; transition: color 0.2s, background 0.2s;
}
.bottom-nav .bn-item .icon { width: 23px; height: 23px; }
.bottom-nav .bn-item.active { color: var(--blue); }
.bottom-nav .bn-item:active { background: rgba(0,122,255,0.08); }

/* 详情页吸底购买条 */
.buy-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; display: none;
  align-items: center; gap: 12px;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,0.82); border-top: 1px solid var(--glass-brd);
  backdrop-filter: saturate(180%) blur(22px); -webkit-backdrop-filter: saturate(180%) blur(22px);
  box-shadow: 0 -10px 34px rgba(31,38,135,0.14);
}
.buy-bar .bb-price { display: flex; flex-direction: column; }
.buy-bar .bb-price .price { font-size: 22px; }
.buy-bar .bb-stock { font-size: 11px; color: var(--gray); margin-top: 2px; }
.buy-bar .bb-actions { display: flex; gap: 10px; margin-left: auto; }
.buy-bar .bb-actions .btn { margin: 0; }

@media (max-width: 720px) {
  body { padding-bottom: 86px; }
  .bottom-nav { display: flex; }
  .detail .btn-row { display: none; }   /* 移动端改用吸底购买条 */
  .buy-bar { display: flex; }
}

/* ============================================================
   深色模式 [data-theme="dark"]
   ============================================================ */
[data-theme="dark"] {
  --ink: #f2f2f7;
  --ink-2: #c7c7cc;
  --gray: #98989f;
  --glass-bg: rgba(44, 44, 52, 0.55);
  --glass-brd: rgba(255, 255, 255, 0.14);
  --glass-hl: inset 0 1px 0 rgba(255, 255, 255, 0.10);
  --shadow: 0 10px 34px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.55);
}

/* 背景与柔光球 */
[data-theme="dark"] body { background: linear-gradient(135deg, #0e1320 0%, #15101f 48%, #0b1813 100%); color: var(--ink); }
[data-theme="dark"] body::before { background: #2a4a7a; opacity: 0.45; }
[data-theme="dark"] body::after { background: #4a3a7a; opacity: 0.45; }

/* 顶栏 */
[data-theme="dark"] .topbar { background: rgba(28, 28, 34, 0.62); box-shadow: var(--shadow); }
[data-theme="dark"] .topbar::before { background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0)); }
[data-theme="dark"] .nav-links a { color: var(--ink); background: var(--glass-bg); border-color: var(--glass-brd); }
[data-theme="dark"] .nav-links a:hover { background: rgba(255, 255, 255, 0.10); }

/* 玻璃卡片 */
[data-theme="dark"] .glass {
  background: linear-gradient(135deg, rgba(46, 46, 54, 0.74), rgba(30, 30, 38, 0.60));
  border-color: var(--glass-brd);
  box-shadow: var(--shadow), var(--glass-hl), inset 0 0 0 1px rgba(255, 255, 255, 0.07);
}
[data-theme="dark"] .glass::before { background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0)); }

/* 商品缩略图 / 详情 hero */
[data-theme="dark"] .card .thumb { background: linear-gradient(135deg, #28304a, #322a45); }
[data-theme="dark"] .card .thumb::after { background: radial-gradient(120% 80% at 50% 0%, rgba(255, 255, 255, 0.12), transparent 60%); }
[data-theme="dark"] .detail .hero { background: linear-gradient(135deg, #28304a, #322a45); }
[data-theme="dark"] .detail .hero::after { background: radial-gradient(120% 80% at 50% 0%, rgba(255, 255, 255, 0.12), transparent 60%); }

/* 表单 / 数量选择 */
[data-theme="dark"] .input, [data-theme="dark"] .textarea, [data-theme="dark"] select.input { background: rgba(0, 0, 0, 0.30); color: var(--ink); border-color: var(--glass-brd); }
[data-theme="dark"] .qty { background: rgba(0, 0, 0, 0.30); border-color: var(--glass-brd); }
[data-theme="dark"] .qty button { color: var(--blue-2); }
[data-theme="dark"] .qty button:hover { background: rgba(255, 255, 255, 0.08); }

/* 按钮 */
[data-theme="dark"] .btn-ghost { color: var(--ink); background: var(--glass-bg); border-color: var(--glass-brd); }
[data-theme="dark"] .btn-ghost:hover { background: rgba(255, 255, 255, 0.10); }

/* 分段控制器 */
[data-theme="dark"] .segmented { background: rgba(0, 0, 0, 0.35); border-color: var(--glass-brd); }
[data-theme="dark"] .segmented button { color: var(--ink-2); }
[data-theme="dark"] .segmented button:hover { color: var(--ink); }
[data-theme="dark"] .segmented button.active { background: rgba(255, 255, 255, 0.14); color: var(--blue-2); }

/* 分类吸顶 */
[data-theme="dark"] .cats { background: linear-gradient(180deg, rgba(14, 14, 20, 0.92), rgba(21, 16, 31, 0.72)); }
[data-theme="dark"] .chip { color: var(--ink); background: var(--glass-bg); border-color: var(--glass-brd); }
[data-theme="dark"] .chip:hover { background: rgba(255, 255, 255, 0.10); }
[data-theme="dark"] .chip.active { background: linear-gradient(135deg, var(--blue), var(--blue-2)); color: #fff; border-color: transparent; }

/* 骨架屏 */
[data-theme="dark"] .sk-thumb { background: rgba(255, 255, 255, 0.07); }
[data-theme="dark"] .sk-line { background: rgba(255, 255, 255, 0.09); }

/* 移动端底栏 / 吸底购买条 */
[data-theme="dark"] .bottom-nav { background: rgba(18, 18, 24, 0.82); border-color: var(--glass-brd); box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.5); }
[data-theme="dark"] .buy-bar { background: rgba(20, 20, 26, 0.84); border-color: var(--glass-brd); box-shadow: 0 -10px 34px rgba(0, 0, 0, 0.5); }

/* 卡密框 / 收款码标签 */
[data-theme="dark"] .code-item { background: rgba(0, 0, 0, 0.30); border-color: var(--glass-brd); color: var(--ink); }
[data-theme="dark"] .code-item:hover { border-color: var(--blue); }
[data-theme="dark"] .pay-tab { background: rgba(0, 0, 0, 0.30); border-color: var(--glass-brd); color: var(--ink); }
[data-theme="dark"] .pay-tab:hover { background: rgba(255, 255, 255, 0.08); }

/* 表格（后台） */
[data-theme="dark"] th, [data-theme="dark"] td { border-bottom-color: rgba(255, 255, 255, 0.08); }
[data-theme="dark"] tbody tr:hover { background: rgba(255, 255, 255, 0.05); }

/* 收款金额框 */
[data-theme="dark"] .pay-amount { background: rgba(0, 122, 255, 0.12); border-color: rgba(0, 122, 255, 0.30); color: var(--ink-2); }
[data-theme="dark"] .pay-amount .big { color: var(--ink); }

/* 主题切换按钮 */
.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px; flex: none;
  border-radius: 12px; border: 1px solid var(--glass-brd); background: var(--glass-bg);
  color: var(--ink); cursor: pointer; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: background 0.2s, transform 0.15s;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.85); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn .icon { width: 19px; height: 19px; }
[data-theme="dark"] .icon-btn:hover { background: rgba(255, 255, 255, 0.10); }

/* ============================================================
   后台响应式（移动端可管理店铺）
   ============================================================ */
@media (max-width: 720px) {
  #panel > .nav-links { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  #panel > .nav-links .tab { flex: none; }
  #panel > .nav-links .tab.active { box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12); }
  .glass.section { padding: 16px 14px; }
  #modal, #couponModal { padding: 14px 10px; align-items: flex-start; }
  #modal .glass.section, #couponModal .glass.section { padding: 18px 15px; }
  .topbar .nav-links { gap: 6px; }
  .topbar .nav-links a { padding: 8px 11px; }
}

/* ============================================================
   多设备响应式（手机 / 平板 / 桌面，保持同样的流畅度）
   - 流体网格已就位（.grid auto-fill / .stats auto-fit / .detail 侧栏）
   - 这里补齐：平板断点、触摸可点区域、文本防溢出、锚点偏移
   ============================================================ */

/* 文本/资源防溢出：长商品名、邮箱、卡密不撑破卡片或容器 */
.card .body .name, .card .body .cat, .code-item, .order-card, .empty { overflow-wrap: anywhere; word-break: break-word; }
img, svg { max-width: 100%; }
html { scroll-padding-top: 92px; }   /* 锚点(#cats)跳过吸顶栏，避免被遮挡 */

/* ---- 平板（≤1024px）：收窄容器，后台标签可横滑防溢出 ---- */
@media (max-width: 1024px) {
  .app { max-width: 920px; }
  #panel > .nav-links { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  #panel > .nav-links .tab { flex: none; }
}

/* ---- 触摸设备（手机/平板，粗指针）：放大可点区域，禁 iOS 聚焦缩放 ---- */
@media (hover: none) and (pointer: coarse) {
  .btn { min-height: 44px; }
  .input, select, textarea { min-height: 44px; font-size: 16px; }
  .qty button, .qty-sm button { min-width: 44px; min-height: 44px; }
  .chip { padding: 9px 16px; }
  .segmented button { padding: 10px 16px; }
  .bottom-nav .bn-item { min-height: 56px; }
  .switch { width: 54px; height: 32px; }
  .switch .slider::before { height: 28px; width: 28px; }
  .switch input:checked + .slider::before { transform: translateX(22px); }
}

/* ---- 手机（≤720px）：补充间距与排版，与既有断点叠加 ---- */
@media (max-width: 720px) {
  .app { padding: 0 14px; }
  .glass.section { padding: 16px 14px; }
  .controls { flex-wrap: wrap; }
  .controls .search-box { flex: 1 1 100%; }
  .segmented { flex-wrap: wrap; }
  .home-hero { padding: 22px 18px; }
  .topbar { gap: 8px; }
  .detail .hero { height: 220px; }
  .detail .hero img { height: 220px; }
  .card .body .name { font-size: 15px; }
  .order-card { padding: 12px; }
  .stats { gap: 10px; }
}

/* ---- 小屏手机（≤380px） ---- */
@media (max-width: 380px) {
  .app { padding: 0 12px; }
  .glass.section { padding: 14px 12px; }
  .controls { padding: 10px 12px; }
  .home-hero { padding: 20px 16px; }
}