/* ══════════════════════════════════════════════════════════════════
 * tokens.css — Neutral Modern 设计令牌（按 DESIGN.md 合约粘贴）
 * ═══════════════════════════════════════════════════════════════ */
:root {
  /* Cold-trust palette — ATM / 银行终端感 */
  --bg: #f2f4f7;
  --surface: #ffffff;
  --surface-warm: var(--surface);
  --fg: #111418;
  --fg-2: var(--fg);
  --muted: #636b7c;
  --meta: var(--muted);
  --border: #dcdfe5;
  --border-soft: var(--border);
  --border-dark: #b8bec8;
  --accent: #1a6cd0;
  --accent-on: #ffffff;
  --accent-hover: color-mix(in oklab, var(--accent), black 8%);
  --accent-active: color-mix(in oklab, var(--accent), black 14%);
  --success: #16803d;
  --warn: #d9a200;
  --danger: #d92d20;
  --font-display: "Inter", -apple-system, system-ui, sans-serif;
  --font-body: "Inter", -apple-system, system-ui, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", monospace;
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 20px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 48px;
  --text-4xl: 64px;
  --leading-body: 1.5;
  --leading-tight: 1.2;
  --tracking-display: -0.01em;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-20: 80px;
  --section-y-desktop: 80px;
  --section-y-tablet: 48px;
  --section-y-phone: 32px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  --elev-flat: none;
  --elev-ring: 0 0 0 1px var(--border);
  --elev-raised: 0 2px 8px color-mix(in oklab, var(--fg), transparent 92%);
  --focus-ring: 0 0 0 3px color-mix(in oklab, var(--accent), transparent 70%);
  --motion-fast: 150ms;
  --motion-base: 200ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --container-max: 1200px;
  /* Cold-trust 品类面 — 同色系深浅，禁止彩虹/紫粉 */
  --cat-streaming-from: #1a6cd0;
  --cat-streaming-to: #134f9c;
  --cat-game-from: #245a9e;
  --cat-game-to: #1a6cd0;
  --cat-tool-from: #2f6fab;
  --cat-tool-to: #174a86;
  --cat-other-from: #3a5678;
  --cat-other-to: #1a6cd0;
  --qr-bg: #0d1117;
  --qr-ring: rgba(26,108,208,0.35);
  --qr-module: #111418;
  --container-gutter-desktop: 24px;
  --container-gutter-tablet: 16px;
  --container-gutter-phone: 12px;
}

/* ══════════════════════════════════════════════════════════════════
 * 全局重置 & 排版
 * ═══════════════════════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: var(--text-base); -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  line-height: var(--leading-body);
  min-height: 100dvh;
  display: flex;
  justify-content: center;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell {
  width: 100%;
  max-width: 480px;
  min-height: 100dvh;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ══════════════════════════════════════════════════════════════════
 * 顶部导航 — 品牌头 + 操作区
 * ═══════════════════════════════════════════════════════════════ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--surface), transparent 4%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 64px;
  box-shadow: 0 1px 0 color-mix(in oklab, var(--fg), transparent 96%);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.topbar-brand:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.topbar-mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: linear-gradient(145deg, var(--accent) 0%, color-mix(in oklab, var(--accent), black 18%) 100%);
  color: var(--accent-on);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px color-mix(in oklab, var(--accent), transparent 70%);
}

.topbar-mark svg { display: block; }

.topbar-brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.topbar-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: var(--tracking-display);
  color: var(--fg);
  line-height: 1.15;
}

.topbar-tagline {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.topbar-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  color: var(--fg);
  cursor: pointer;
  height: 36px;
  min-width: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard);
}
.topbar-btn:hover { background: var(--bg); border-color: var(--border-dark); }
.topbar-btn:active { transform: scale(0.97); }
.topbar-btn:focus-visible { box-shadow: var(--focus-ring); outline: none; }
.topbar-btn .btn-label { display: none; }
@media (min-width: 360px) {
  .topbar-btn .btn-label { display: inline; }
}

/* ─── 滚动公告 ─────────────────────────────────────────── */
.announce-bar {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 8px var(--space-4);
  background: color-mix(in oklab, var(--accent), transparent 94%);
  border-bottom: 1px solid color-mix(in oklab, var(--accent), transparent 82%);
  min-height: 36px;
}
.announce-bar.show { display: flex; }
.announce-bar.hidden-page { display: none !important; }
.announce-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--accent), transparent 88%);
  color: var(--accent);
  display: grid;
  place-items: center;
}
.announce-label {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.announce-track {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.announce-marquee {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  white-space: nowrap;
  will-change: transform;
  animation: announce-scroll 22s linear infinite;
}
.announce-marquee:hover { animation-play-state: paused; }
.announce-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  color: var(--fg);
  letter-spacing: 0.01em;
}
.announce-item::after {
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: color-mix(in oklab, var(--accent), transparent 40%);
}
.announce-item:last-child::after { display: none; }
@keyframes announce-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .announce-marquee { animation: none; }
  .announce-track { overflow-x: auto; mask-image: none; -webkit-mask-image: none; }
}

/* ─── ICP 页脚 ─────────────────────────────────────────── */
.icp-footer {
  display: none;
  padding: var(--space-6) var(--space-4) calc(var(--space-6) + 24px);
  text-align: center;
  font-size: var(--text-xs);
  color: var(--meta);
  line-height: 1.7;
}
.icp-footer.show { display: block; }
.icp-footer a {
  color: var(--meta);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.icp-footer a:hover { color: var(--accent); }
.icp-footer p { margin: 0; }
.icp-footer p + p { margin-top: 4px; }
.icp-footer p:empty { display: none; }

/* 悬浮客服入口 — 右侧垂直居中，纯图标 */
.cs-fab {
  position: fixed;
  right: max(10px, calc(50% - 230px));
  top: 50%;
  bottom: auto;
  z-index: 90;
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  box-shadow: var(--elev-raised);
  cursor: pointer;
  transform: translateY(-50%);
  transition: box-shadow var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard);
}
.cs-fab.show { display: inline-flex; }
.cs-fab:hover { box-shadow: 0 6px 16px color-mix(in oklab, var(--fg), transparent 90%); background: color-mix(in oklab, var(--surface), var(--accent) 6%); }
.cs-fab:active { transform: translateY(-50%) scale(0.96); }
.cs-fab:focus-visible { box-shadow: var(--focus-ring); outline: none; }
.cs-fab-icon {
  width: 20px;
  height: 20px;
  border-radius: 0;
  background: transparent;
  color: inherit;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.cs-fab-icon svg { width: 18px; height: 18px; display: block; }

/* 客服弹层 */
.cs-sheet {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: flex-end;
  justify-content: center;
  background: color-mix(in oklab, var(--fg), transparent 45%);
}
.cs-sheet.open { display: flex; }
.cs-sheet-panel {
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: var(--space-5) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom, 0px));
  box-shadow: var(--elev-raised);
  animation: slideUp var(--motion-base) var(--ease-standard);
}
.cs-sheet-title {
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
  letter-spacing: var(--tracking-display);
}
.cs-sheet-sub {
  font-size: var(--text-sm);
  color: var(--muted);
  margin-bottom: var(--space-4);
}
.cs-id-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg);
  margin-bottom: var(--space-3);
}
.cs-id-box.hidden { display: none; }
.cs-id-label { font-size: var(--text-xs); color: var(--muted); margin-bottom: 4px; }
.cs-id-value {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.02em;
  word-break: break-all;
}
.cs-sheet-actions { display: flex; flex-direction: column; gap: var(--space-2); }

/* ══════════════════════════════════════════════════════════════════
 * 主内容区
 * ═══════════════════════════════════════════════════════════════ */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  padding-bottom: 80px;
}

.page { display: none; }
.page.active { display: block; }

/* ══════════════════════════════════════════════════════════════════
 * 底部导航
 * ═══════════════════════════════════════════════════════════════ */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  padding: var(--space-2) 0 calc(var(--space-2) + env(safe-area-inset-bottom, 0px));
  z-index: 100;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--muted);
  min-width: 64px;
  min-height: 44px;
  border-radius: var(--radius-sm);
  transition: color var(--motion-fast) var(--ease-standard);
}
.nav-item.active { color: var(--accent); }
.nav-item:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.nav-item svg { width: 22px; height: 22px; }
.nav-item span { letter-spacing: 0.02em; }

/* ══════════════════════════════════════════════════════════════════
 * 商品列表 (无主图 · 单行信息密度)
 * ═══════════════════════════════════════════════════════════════ */
.product-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.product-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  min-height: 72px;
  cursor: pointer;
  transition:
    box-shadow var(--motion-fast) var(--ease-standard),
    border-color var(--motion-fast) var(--ease-standard),
    transform var(--motion-fast) var(--ease-standard);
}
.product-card:hover {
  box-shadow: var(--elev-raised);
  border-color: color-mix(in oklab, var(--accent), var(--border) 55%);
}
.product-card:active { transform: scale(0.992); }
.product-card:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-color: color-mix(in oklab, var(--accent), var(--border) 40%);
}

.product-card-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: color-mix(in oklab, var(--accent), var(--surface) 90%);
  border: 1px solid color-mix(in oklab, var(--accent), var(--border) 70%);
  color: var(--accent);
}
.product-card-icon svg.product-icon {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}
.product-card-icon.img-streaming { background: color-mix(in oklab, var(--cat-streaming-from), var(--surface) 88%); color: var(--cat-streaming-to); border-color: color-mix(in oklab, var(--cat-streaming-from), var(--border) 60%); }
.product-card-icon.img-game { background: color-mix(in oklab, var(--cat-game-from), var(--surface) 88%); color: var(--cat-game-to); border-color: color-mix(in oklab, var(--cat-game-from), var(--border) 60%); }
.product-card-icon.img-tool { background: color-mix(in oklab, var(--cat-tool-from), var(--surface) 88%); color: var(--cat-tool-to); border-color: color-mix(in oklab, var(--cat-tool-from), var(--border) 60%); }
.product-card-icon.img-other { background: color-mix(in oklab, var(--cat-other-from), var(--surface) 88%); color: var(--cat-other-to); border-color: color-mix(in oklab, var(--cat-other-from), var(--border) 60%); }

/* 详情 hero 仍可用品类渐变 */
.img-streaming,
.img-game,
.img-tool,
.img-other {
  background: linear-gradient(145deg, var(--cat-streaming-from), var(--cat-streaming-to));
}
.detail-hero.img-game { background: linear-gradient(145deg, var(--cat-game-from), var(--cat-game-to)); }
.detail-hero.img-tool { background: linear-gradient(145deg, var(--cat-tool-from), var(--cat-tool-to)); }
.detail-hero.img-other { background: linear-gradient(145deg, var(--cat-other-from), var(--cat-other-to)); }
.detail-hero.img-streaming svg,
.detail-hero.img-game svg,
.detail-hero.img-tool svg,
.detail-hero.img-other svg { color: var(--accent-on); }

.product-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-card-name {
  font-weight: 600;
  font-size: var(--text-sm);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: 1.3;
}
.product-card-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border-dark);
  flex-shrink: 0;
}
.product-card-meta .in-stock { color: var(--success); font-weight: 500; }
.product-card-meta .out-of-stock { color: var(--muted); }
.product-card-meta .spec-count {
  color: var(--muted);
  letter-spacing: 0.01em;
}

.product-card-side {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  margin-left: var(--space-2);
}
.product-card-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--danger);
  line-height: 1.2;
  white-space: nowrap;
}
.product-card-price .unit {
  font-size: var(--text-xs);
  font-weight: 500;
  margin-right: 1px;
}
.product-card-price .from {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
  font-family: var(--font-body);
  margin-left: 2px;
}
.product-card-chevron {
  color: var(--border-dark);
  display: flex;
  align-items: center;
}
.product-card-chevron svg { width: 16px; height: 16px; }
.product-card:hover .product-card-chevron { color: var(--muted); }

/* 搜索条 */
.search-bar {
  margin-bottom: var(--space-4);
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--space-2) var(--space-4) var(--space-2) 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  background: var(--surface);
  color: var(--fg);
  outline: none;
  transition: border-color var(--motion-fast) var(--ease-standard);
}
.search-input:focus { border-color: var(--accent); box-shadow: var(--focus-ring); }
.search-input::placeholder { color: var(--meta); }

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

/* 分类标签 */
.category-tags {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.category-tags::-webkit-scrollbar { display: none; }

.tag {
  flex-shrink: 0;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  font-size: var(--text-sm);
  color: var(--fg);
  background: var(--surface);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--motion-fast) var(--ease-standard);
  letter-spacing: 0.02em;
}
.tag.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-on);
}
.tag:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.tag:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* ══════════════════════════════════════════════════════════════════
 * 商品详情页 — 介绍 + 规格同页，无主图
 * ═══════════════════════════════════════════════════════════════ */
#page-detail {
  /* 底栏(≈64) + 底导航(≈56) + 安全区，避免规格/邮箱被挡住 */
  padding-bottom: calc(132px + env(safe-area-inset-bottom, 0px));
}
.detail-head {
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}
.detail-head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}
.detail-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-tight);
  margin: 0;
  flex: 1;
  min-width: 0;
}
.btn-copy-link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  transition: color var(--motion-fast) var(--ease-standard), border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard);
}
.btn-copy-link:hover {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent), transparent 55%);
  background: color-mix(in oklab, var(--accent), transparent 94%);
}
.btn-copy-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.btn-copy-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
.product-card-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}
.product-card-link-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  line-height: 1;
  padding: 8px 4px;
  min-height: 32px;
  cursor: pointer;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
}
.product-card-link-btn:hover {
  color: var(--accent);
}
.product-card-link-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 4px;
}
.detail-price-row {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.detail-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-xl);
  color: var(--danger);
}
.detail-price .unit {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--muted);
}
.detail-intro {
  margin-bottom: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.detail-intro-title {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-2);
}
.detail-intro-body {
  font-size: var(--text-sm);
  color: var(--fg);
  line-height: var(--leading-body);
  white-space: pre-wrap;
}
.detail-buy-block {
  margin-bottom: var(--space-3);
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.detail-buy-block .spec-picker { margin-bottom: var(--space-3); }
.detail-buy-block .form-row-qty-email { margin-top: 0; }

/* 详情页底部固定购买栏 */
.detail-buybar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(56px + env(safe-area-inset-bottom, 0px));
  width: 100%;
  max-width: 480px;
  z-index: 40;
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-4);
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 16px color-mix(in oklab, var(--fg), transparent 94%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-sizing: border-box;
}
#page-detail.active .detail-buybar {
  display: flex;
}
.detail-buybar-price {
  flex: 1;
  min-width: 0;
}
.detail-buybar-price .label {
  display: block;
  font-size: 11px;
  color: var(--muted);
}
.detail-buybar-price .val {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--danger);
  line-height: 1.2;
}
.detail-buybar .btn {
  flex: 1.2;
  min-height: 44px;
}

/* 购买弹窗内规格选择 */
.spec-picker {
  margin-bottom: var(--space-4);
}
.spec-picker-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--fg);
  margin-bottom: var(--space-2);
}
.spec-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.spec-option {
  min-width: 120px;
  flex: 1 1 calc(50% - 4px);
  max-width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
  font-family: inherit;
  color: var(--fg);
}
.spec-option:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}
.spec-option:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}
.spec-option.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}
.spec-option:disabled,
.spec-option.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}
.spec-option-name {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: 4px;
}
.spec-option-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.spec-option-price {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--danger);
}
.spec-option-stock {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.order-product-line {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0 0 var(--space-2);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-3);
}
.order-product-info {
  flex: 1;
  min-width: 0;
}
.order-product-info .name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--fg);
  letter-spacing: var(--tracking-display);
  line-height: 1.3;
  margin-bottom: 2px;
}
.order-product-info .sub {
  font-size: 11px;
  color: var(--muted);
}
.order-product-price {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--danger);
  flex-shrink: 0;
  letter-spacing: -0.02em;
}
.order-product-price .unit {
  font-size: 11px;
  font-weight: 500;
  margin-right: 1px;
}
/* 立即购买页：无商品图，仅文字行 */

/* 购买+支付合并弹窗 */
.checkout-modal {
  display: flex;
  flex-direction: column;
  max-height: min(92dvh, 900px);
  padding: 0;
  overflow: hidden;
}
.checkout-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.checkout-head .modal-title { margin: 0; font-size: var(--text-lg); }
.checkout-steps {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.checkout-steps .step {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.checkout-steps .step.on { color: var(--accent); font-weight: 600; }
.checkout-steps .step-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-dark);
}
.checkout-steps .step.on .step-dot { background: var(--accent); }
.checkout-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-3) var(--space-4);
  -webkit-overflow-scrolling: touch;
}
.checkout-phase { display: none; }
.checkout-phase.active { display: block; }
.checkout-foot {
  flex-shrink: 0;
  padding: var(--space-3) var(--space-4) calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.checkout-foot .btn { width: 100%; }
.checkout-compact-summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--text-sm);
  color: var(--muted);
  margin-bottom: 2px;
  padding: 2px 0;
}
.checkout-compact-summary .amount {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--danger);
  font-size: var(--text-xl);
  letter-spacing: -0.02em;
}
.checkout-compact-summary .amount::before {
  content: none;
}

/* 合并支付区内嵌 QR — 更紧凑完整 */
.checkout-pay-stage.qr-stage {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3) var(--space-3);
  margin-bottom: var(--space-3);
}
.checkout-pay-stage .qr-amount {
  font-size: clamp(24px, 7vw, 32px);
  margin-bottom: var(--space-3);
}
.checkout-pay-stage .qr-frame {
  width: min(140px, 38vw);
  height: min(140px, 38vw);
  margin-bottom: var(--space-2);
}
.checkout-pay-stage .qr-brand { margin-bottom: var(--space-2); }
.checkout-pay-stage .qr-order-id,
.checkout-pay-stage .qr-timer,
.checkout-pay-stage .qr-polling {
  font-size: 12px;
}
.checkout-pay-meta {
  display: grid;
  gap: 6px;
  padding: var(--space-3);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  color: var(--muted);
}
.checkout-pay-meta div {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
}
.checkout-pay-meta strong {
  color: var(--fg);
  font-weight: 500;
  text-align: right;
  word-break: break-all;
}
.form-row-qty-email {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
  margin-top: var(--space-1);
}
.form-row-qty-email .form-help {
  font-size: 11px;
  margin-top: 4px;
}
.form-row-qty-email .form-label {
  margin-bottom: 6px;
}
@media (max-width: 380px) {
  .form-row-qty-email { grid-template-columns: 1fr; }
}
/* 详情页规格区 */
.detail-buy-block .spec-picker { margin-bottom: var(--space-3); }
.detail-buy-block .spec-picker-label {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: var(--space-2);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--muted);
  font-size: var(--text-sm);
  cursor: pointer;
  margin-bottom: var(--space-3);
  background: none;
  border: none;
  padding: 4px 6px;
  margin-left: -6px;
  border-radius: var(--radius-sm);
  min-height: 36px;
}
.back-link:hover { color: var(--fg); }
.back-link:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ══════════════════════════════════════════════════════════════════
 * CTA 按钮
 * ═══════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  letter-spacing: 0.02em;
  transition: all var(--motion-fast) var(--ease-standard);
  min-height: 44px;
  -webkit-tap-highlight-color: transparent;
}
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-on);
  width: 100%;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-primary:active:not(:disabled) { background: var(--accent-active); }
.btn-primary:disabled {
  background: color-mix(in oklab, var(--accent), var(--muted) 45%);
  color: color-mix(in oklab, var(--accent-on), transparent 20%);
}

.btn-secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  width: 100%;
}
.btn-secondary:hover { background: var(--bg); }

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  min-height: 32px;
  width: auto;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline:hover { background: color-mix(in oklab, var(--accent), transparent 95%); }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ══════════════════════════════════════════════════════════════════
 * 表单
 * ═══════════════════════════════════════════════════════════════ */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.form-input {
  width: 100%;
  padding: 10px var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
  background: var(--surface);
  color: var(--fg);
  outline: none;
  font-family: var(--font-body);
  transition: border-color var(--motion-fast) var(--ease-standard);
}
.form-input:focus { border-color: var(--accent); box-shadow: var(--focus-ring); }
.form-input::placeholder { color: var(--meta); }
.form-input.is-error,
.form-input[aria-invalid="true"] {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--danger), transparent 80%);
}

.form-help {
  font-size: var(--text-xs);
  color: var(--muted);
  margin-top: var(--space-1);
}

.form-error {
  display: none;
  font-size: var(--text-xs);
  color: var(--danger);
  margin-top: var(--space-1);
}
.form-error.show { display: block; }

select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b6b6b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; }

/* ══════════════════════════════════════════════════════════════════
 * 支付页 — 沉浸式 QR 终端体验
 * ═══════════════════════════════════════════════════════════════ */
.qr-stage {
  background: var(--qr-bg);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-4) var(--space-4);
  text-align: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.qr-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 35%, color-mix(in oklab, var(--accent), transparent 92%) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, color-mix(in oklab, var(--accent), transparent 96%) 0%, transparent 45%);
  pointer-events: none;
}
.qr-product-label {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--accent-on), transparent 45%);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-1);
}
.qr-amount {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(28px, 8vw, 40px);
  color: var(--accent-on);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}
.qr-amount .qunit { font-size: var(--text-xl); font-weight: 400; opacity: 0.6; }

.qr-frame {
  width: min(168px, 42vw);
  height: min(168px, 42vw);
  margin: 0 auto var(--space-3);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.qr-core {
  width: 86%;
  height: 86%;
  background: var(--surface);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-on), transparent 85%);
}
.qr-pulse-ring {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-sm);
  border: 2px solid var(--qr-ring);
  animation: qrPulse 2.2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  z-index: 1;
}
.qr-pulse-ring:nth-child(2) { animation-delay: 0.55s; }
.qr-pulse-ring:nth-child(3) { animation-delay: 1.1s; }

@keyframes qrPulse {
  0% { transform: scale(0.92); opacity: 0.8; }
  100% { transform: scale(1.22); opacity: 0; }
}

.qr-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.qr-brand-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-on);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.qr-brand-text { font-size: var(--text-xs); color: color-mix(in srgb, var(--accent-on), transparent 55%); letter-spacing: 0.06em; }

.qr-order-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: color-mix(in srgb, var(--accent-on), transparent 65%);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-3);
}

.qr-timer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--accent-on), transparent 55%);
}
.qr-timer .qt-remaining {
  color: var(--accent);
  font-weight: 600;
  font-size: var(--text-base);
}
.qr-timer .qt-remaining.urgent { color: var(--danger); }

.qr-polling {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--accent-on), transparent 70%);
  letter-spacing: 0.04em;
}

.qr-tips {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: var(--leading-body);
  text-align: left;
}
.qr-tips p + p { margin-top: var(--space-2); }
.qr-tips strong { color: var(--fg); }

/* Trust seal on payment page */
.qr-trust-seal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  color: var(--muted);
  letter-spacing: 0.04em;
}
.qr-trust-seal svg { color: var(--success); flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════════════
 * 保持旧支付 CSS 兼容（下游可能引用）
 * ═══════════════════════════════════════════════════════════════ */
.payment-card { }
.payment-title { }
.payment-amount { }
.qr-placeholder { display: none; }
.qr-overlay { display: none; }
.qr-alipay-logo { }
.payment-timer { }
.payment-tips { }
.order-id-display { }

/* ══════════════════════════════════════════════════════════════════
 * 卡密提取页
 * ═══════════════════════════════════════════════════════════════ */
.key-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
}

.key-success-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: color-mix(in oklab, var(--success), transparent 85%);
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: successPop 0.5s var(--ease-spring);
}

.key-title {
  font-weight: 600;
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
  letter-spacing: var(--tracking-display);
}

.key-subtitle {
  font-size: var(--text-sm);
  color: var(--muted);
  margin-bottom: var(--space-4);
}

.key-order-meta {
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
  display: grid;
  gap: var(--space-2);
}
.key-order-meta-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.4;
}
.key-order-meta-row span:first-child { color: var(--muted); flex-shrink: 0; }
.key-order-meta-row span:last-child {
  color: var(--fg);
  text-align: right;
  word-break: break-all;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}
.key-order-meta-row.amount span:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--danger);
  font-size: var(--text-sm);
}
.key-order-meta-row .meta-body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
}
.cs-id-main {
  flex: 1;
  min-width: 0;
}
.local-orders-hint {
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--muted);
}
.order-result {
  margin-top: var(--space-4);
}
.skeleton-price-stub {
  width: 48px;
  margin: 0;
}
.stagger-delay-0 { animation-delay: 0s; }
.stagger-delay-1 { animation-delay: 0.04s; }
.stagger-delay-2 { animation-delay: 0.08s; }
.stagger-delay-3 { animation-delay: 0.12s; }
.stagger-delay-4 { animation-delay: 0.16s; }
.stagger-delay-5 { animation-delay: 0.2s; }
.stagger-delay-6 { animation-delay: 0.24s; }
.stagger-delay-7 { animation-delay: 0.28s; }
.stagger-delay-8 { animation-delay: 0.32s; }
.stagger-delay-9 { animation-delay: 0.36s; }
.key-section-label {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-2);
}

.key-list {
  text-align: left;
}

.key-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.key-value {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  word-break: break-all;
  flex: 1;
}

.key-item .btn-sm { flex-shrink: 0; }

/* ══════════════════════════════════════════════════════════════════
 * 订单查询页
 * ═══════════════════════════════════════════════════════════════ */
.query-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.query-card + .query-card { margin-top: var(--space-3); }

/* 本机订单：真正单行紧凑列表 */
.order-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px var(--space-3);
  min-height: 40px;
  cursor: pointer;
  transition: border-color var(--motion-fast) var(--ease-standard), background var(--motion-fast) var(--ease-standard);
}
.order-row + .order-row { margin-top: var(--space-2); }
.order-row:hover { border-color: var(--border-dark); background: color-mix(in oklab, var(--surface), var(--bg) 40%); }
.order-row:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.order-row-main {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  overflow: hidden;
}
.order-row-name {
  flex: 1;
  min-width: 0;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}
.order-row-meta {
  flex-shrink: 0;
  max-width: 42%;
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.01em;
}
.order-row-amount {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.01em;
  min-width: 3.5em;
  text-align: right;
}
.order-row-status {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  line-height: 1.4;
  white-space: nowrap;
}
.order-row-status.paid {
  color: var(--success);
  background: color-mix(in oklab, var(--success), transparent 90%);
}
.order-row-status.pending {
  color: color-mix(in oklab, var(--warn), black 35%);
  background: color-mix(in oklab, var(--warn), transparent 88%);
}
.order-row-action {
  flex-shrink: 0;
}
.order-row-action .btn {
  white-space: nowrap;
  padding: 5px 10px;
  font-size: 12px;
  min-height: 28px;
}
.order-list-compact {
  display: flex;
  flex-direction: column;
}
@media (max-width: 380px) {
  .order-row-meta { display: none; }
}

.query-section-title {
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
  letter-spacing: 0.02em;
}

.order-timeline {
  padding-left: var(--space-4);
  border-left: 2px solid var(--border);
  margin-top: var(--space-3);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-4);
  padding-left: var(--space-4);
  font-size: var(--text-sm);
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-4) - 5px);
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--surface);
}

.timeline-item.done::before { background: var(--success); }
.timeline-item.active::before { background: var(--accent); }

.timeline-label { font-weight: 600; }
.timeline-time { font-size: var(--text-xs); color: var(--muted); margin-top: 2px; }

.order-result-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.order-result-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--space-3);
}

.order-result-name { font-weight: 600; font-size: var(--text-sm); }

.order-result-status {
  font-size: var(--text-xs);
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.order-result-status.paid { background: color-mix(in oklab, var(--success), transparent 85%); color: var(--success); }
.order-result-status.pending { background: color-mix(in oklab, var(--warn), transparent 85%); color: color-mix(in oklab, var(--warn), black 45%); }

/* ══════════════════════════════════════════════════════════════════
 * Toast 提示
 * ═══════════════════════════════════════════════════════════════ */
.toast {
  position: fixed;
  top: 68px;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--fg);
  color: var(--surface);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  z-index: 260;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-base) var(--ease-standard), transform var(--motion-base) var(--ease-standard);
  box-shadow: var(--elev-raised);
  max-width: min(420px, calc(100% - 32px));
  text-align: center;
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ══════════════════════════════════════════════════════════════════
 * 空状态
 * ═══════════════════════════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  display: grid;
  place-items: center;
  color: var(--muted);
  opacity: 0.85;
}
.empty-state-icon svg {
  width: 48px;
  height: 48px;
}

.empty-state-text {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: var(--leading-body);
}

/* ══════════════════════════════════════════════════════════════════
 * modal
 * ═══════════════════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: color-mix(in oklab, var(--fg), transparent 40%);
  z-index: 150;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
.modal-overlay.hidden { display: none; }
.hidden { display: none !important; }
body.modal-open {
  overflow: hidden;
  touch-action: none;
}
.qr-polling.is-visible { display: flex; }
.pay-order-id-mono {
  font-family: var(--font-mono);
  font-size: 11px;
}
.key-modal-actions {
  margin-top: var(--space-4);
  display: flex;
  gap: var(--space-3);
  flex-direction: column;
}
.form-group-flush { margin: 0; }
.checkout-tips-flush { margin: 0; }
.required-mark { color: var(--danger); }

.modal {
  background: var(--surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  width: 100%;
  max-width: 480px;
  max-height: min(92dvh, 920px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-5) var(--space-4) calc(var(--space-5) + env(safe-area-inset-bottom, 0px));
  animation: slideUp var(--motion-base) var(--ease-standard);
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 -8px 32px color-mix(in oklab, var(--fg), transparent 88%);
}
.modal.pay-modal {
  padding: 0;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  max-height: min(94dvh, 960px);
}
.pay-modal-body {
  overflow-y: auto;
  overscroll-behavior: contain;
  flex: 1;
  min-height: 0;
}
.pay-modal-footer {
  background: var(--surface);
  padding: var(--space-3) var(--space-4) calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  display: flex;
  gap: var(--space-2);
  flex-direction: column;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.pay-modal-footer .qr-tips {
  margin-top: 0;
  padding: var(--space-3);
  font-size: 12px;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-title {
  font-weight: 600;
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-display);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--text-xl);
  cursor: pointer;
  color: var(--muted);
  width: 36px;
  height: 36px;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  line-height: 1;
}
.modal-close:hover { background: var(--bg); color: var(--fg); }
.modal-close:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ══════════════════════════════════════════════════════════════════
 * 数量选择器
 * ═══════════════════════════════════════════════════════════════ */
.qty-selector {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.qty-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: var(--text-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--fg);
  transition: all var(--motion-fast) var(--ease-standard);
}
.qty-btn:hover:not(:disabled) { background: var(--bg); }
.qty-btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.qty-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.qty-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-xl);
  min-width: 40px;
  text-align: center;
  transition: transform var(--motion-fast) var(--ease-spring);
}

/* ══════════════════════════════════════════════════════════════════
 * 价格汇总卡片
 * ═══════════════════════════════════════════════════════════════ */
.price-summary {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  margin-top: var(--space-3);
  margin-bottom: 0;
}

.price-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-sm);
  padding: var(--space-1) 0;
}
.price-summary-row.total {
  border-top: 1px solid var(--border);
  margin-top: var(--space-2);
  padding-top: var(--space-3);
  font-weight: 600;
  font-size: var(--text-base);
}
.price-summary-row.total .amount { font-size: var(--text-lg); }
.price-summary-row .amount {
  font-family: var(--font-mono);
  font-weight: 600;
  transition: transform var(--motion-fast) var(--ease-spring);
}

/* ══════════════════════════════════════════════════════════════════
 * 加载动画 (支付模拟用)
 * ═══════════════════════════════════════════════════════════════ */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.pulse { animation: pulse 1.5s infinite; }

/* ══════════════════════════════════════════════════════════════════
 * 卡片交错入场动画
 * ═══════════════════════════════════════════════════════════════ */
@keyframes cardSlideIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.product-card.stagger-in {
  animation: cardSlideIn 0.45s var(--ease-standard) both;
}

/* ══════════════════════════════════════════════════════════════════
 * 骨架屏加载
 * ═══════════════════════════════════════════════════════════════ */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.skeleton-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: var(--space-3) var(--space-4);
  min-height: 72px;
}

.skeleton-img {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg,
    color-mix(in oklab, var(--border), white 50%) 25%,
    color-mix(in oklab, var(--border), white 70%) 50%,
    color-mix(in oklab, var(--border), white 50%) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skeleton-line {
  height: 12px;
  border-radius: 4px;
  background: linear-gradient(90deg,
    color-mix(in oklab, var(--border), white 50%) 25%,
    color-mix(in oklab, var(--border), white 70%) 50%,
    color-mix(in oklab, var(--border), white 50%) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  margin-bottom: var(--space-2);
}
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w80 { width: 80%; }
.skeleton-line.w40 { width: 40%; }
.skeleton-line:last-child { margin-bottom: 0; }

/* ══════════════════════════════════════════════════════════════════
 * 推送通知
 * ═══════════════════════════════════════════════════════════════ */
.push-notification {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-120px);
  width: calc(100% - 32px);
  max-width: 448px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  z-index: 250;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  box-shadow: 0 8px 24px color-mix(in oklab, var(--fg), transparent 85%);
  transition: transform 0.4s var(--ease-spring);
  pointer-events: auto;
}
.push-notification.visible {
  transform: translateX(-50%) translateY(0);
}
.push-notification .push-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.push-notification .push-icon.success {
  background: color-mix(in oklab, var(--success), transparent 85%);
  color: var(--success);
}
.push-notification .push-body { flex: 1; }
.push-notification .push-title {
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: 2px;
}
.push-notification .push-desc {
  font-size: var(--text-xs);
  color: var(--muted);
}
.push-notification .push-close {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: var(--text-lg);
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.push-notification .push-close:hover { background: var(--bg); }
.push-notification .push-close:focus-visible { outline: none; box-shadow: var(--focus-ring); }

/* ══════════════════════════════════════════════════════════════════
 * 微动效 keyframes
 * ═══════════════════════════════════════════════════════════════ */
@keyframes copyPulse {
  0% { transform: scale(1); }
  30% { transform: scale(1.12); }
  100% { transform: scale(1); }
}
.copy-pulse { animation: copyPulse 0.35s var(--ease-spring); }

@keyframes successPop {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes pollingBlink {
  0%, 60%, 100% { opacity: 0.3; }
  30% { opacity: 1; }
}

/* polling indicator on payment screen */
.polling-dots {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}
.polling-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  animation: pollingBlink 1.2s infinite;
}
.polling-dot:nth-child(2) { animation-delay: 0.4s; }
.polling-dot:nth-child(3) { animation-delay: 0.8s; }

/* qty bump animation */
.qty-value.bump { animation: copyPulse 0.35s var(--ease-spring); }
.price-summary-row .amount.bump { animation: copyPulse 0.35s var(--ease-spring); }
.detail-buybar-price .val.bump { animation: copyPulse 0.35s var(--ease-spring); }

/* 移动端适配 */
@media (max-width: 480px) {
  .app-shell { max-width: 100%; }
  .bottom-nav { max-width: 100%; left: 0; transform: none; }
  .product-grid { gap: 6px; }
  .product-card { padding: var(--space-3); min-height: 68px; }
  .cs-fab { right: 12px; top: 50%; }
}

/* ══════════════════════════════════════════════════════════════════
 * Web 主题 — 大气简约桌面端（html.theme-web / body.theme-web）
 * ═══════════════════════════════════════════════════════════════ */
html.theme-web,
html.theme-web body,
body.theme-web {
  justify-content: stretch;
  background:
    radial-gradient(1200px 480px at 12% -10%, color-mix(in oklab, var(--accent), transparent 92%), transparent 60%),
    radial-gradient(900px 420px at 88% 0%, color-mix(in oklab, var(--accent), transparent 94%), transparent 55%),
    var(--bg);
}
html.theme-web .app-shell,
body.theme-web .app-shell {
  max-width: 1120px;
  margin: 0 auto;
  min-height: 100dvh;
  background: transparent;
  box-shadow: none;
  width: 100%;
}
html.theme-web .topbar,
body.theme-web .topbar {
  margin: 0 auto;
  width: 100%;
  max-width: 1120px;
  padding: 18px 32px;
  min-height: 72px;
  background: color-mix(in oklab, var(--surface), transparent 8%);
  border-bottom: 1px solid color-mix(in oklab, var(--border), transparent 20%);
  border-radius: 0;
}
body.theme-web .topbar-logo { font-size: 20px; }
body.theme-web .topbar-tagline { font-size: 12px; }
body.theme-web .topbar-btn {
  height: 40px;
  padding: 0 16px;
  border-radius: 10px;
}
body.theme-web .topbar-btn .btn-label { display: inline; }
body.theme-web .announce-bar {
  max-width: 1120px;
  margin: 0 auto;
  width: 100%;
  padding: 10px 32px;
  border-radius: 0;
}
body.theme-web .main-content {
  max-width: 1120px;
  margin: 0 auto;
  width: 100%;
  padding: 28px 32px 48px;
  padding-bottom: 48px;
}
html.theme-web .bottom-nav,
body.theme-web .bottom-nav { display: none !important; }
html.theme-web #page-home .search-bar,
body.theme-web #page-home .search-bar {
  max-width: 420px;
}
html.theme-web .category-tags,
body.theme-web .category-tags {
  gap: 10px;
  margin-bottom: 20px;
}
html.theme-web .category-tags .tag,
body.theme-web .category-tags .tag {
  padding: 8px 16px;
  font-size: var(--text-sm);
  border-radius: var(--radius-pill);
}
html.theme-web .product-grid,
body.theme-web .product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
/* Web 主题标识 — 窄预览下也能确认已切换 */
html.theme-web .topbar-logo::after,
body.theme-web .topbar-logo::after {
  content: 'Web';
  display: inline-block;
  margin-left: 8px;
  padding: 1px 7px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: color-mix(in oklab, var(--accent), transparent 90%);
  border: 1px solid color-mix(in oklab, var(--accent), transparent 75%);
  vertical-align: middle;
  line-height: 1.4;
}
body.theme-web .product-card {
  min-height: 88px;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 1px 0 color-mix(in oklab, var(--fg), transparent 96%);
}
body.theme-web .product-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--elev-raised);
}
body.theme-web .product-card:active { transform: translateY(0); }
body.theme-web .product-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
}
body.theme-web .product-card-icon svg.product-icon {
  width: 22px;
  height: 22px;
}
body.theme-web .product-card-name {
  font-size: 16px;
  font-weight: 600;
}
body.theme-web .product-card-price {
  font-size: 18px;
}
body.theme-web #page-detail {
  max-width: 720px;
  margin: 0 auto;
}
body.theme-web .detail-name {
  font-size: 28px;
  letter-spacing: var(--tracking-display);
}
body.theme-web .detail-intro,
body.theme-web .detail-buy-block {
  padding: 20px 24px;
  border-radius: 14px;
  box-shadow: 0 1px 0 color-mix(in oklab, var(--fg), transparent 96%);
}
body.theme-web .detail-buybar {
  position: sticky;
  left: auto;
  right: auto;
  bottom: 0;
  transform: none;
  max-width: 720px;
  margin: 20px auto 0;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--elev-raised);
  padding: 14px 20px;
}
body.theme-web .detail-buybar .btn {
  max-width: 220px;
  flex: 0 0 auto;
  min-width: 160px;
}
body.theme-web .spec-option {
  flex: 1 1 calc(33.333% - 8px);
  max-width: calc(33.333% - 8px);
}
body.theme-web .form-row-qty-email {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  align-items: start;
}
body.theme-web #page-orders {
  max-width: 720px;
  margin: 0 auto;
}
body.theme-web .query-card {
  padding: 24px;
  border-radius: 14px;
}
body.theme-web .icp-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 32px 40px;
  text-align: center;
}
body.theme-web .cs-fab {
  right: max(24px, calc(50% - 560px + 24px));
  width: 48px;
  height: 48px;
}
body.theme-web .cs-fab-icon {
  width: 22px;
  height: 22px;
}
body.theme-web .cs-fab-icon svg {
  width: 20px;
  height: 20px;
}
body.theme-web .modal {
  max-width: 440px;
}
body.theme-web .checkout-modal {
  max-width: 460px;
}
body.theme-web #page-detail {
  padding-bottom: var(--space-8);
}
body.theme-web .modal-overlay {
  align-items: center;
  padding: var(--space-4);
}
body.theme-web .modal,
body.theme-web .checkout-modal {
  border-radius: var(--radius-lg);
  max-height: min(88dvh, 720px);
  box-shadow: 0 16px 48px color-mix(in oklab, var(--fg), transparent 82%);
}
body.theme-web .cs-sheet {
  align-items: center;
}
body.theme-web .cs-sheet-panel {
  border-radius: var(--radius-lg);
  max-width: 420px;
  margin: var(--space-4);
  padding-bottom: var(--space-6);
}

.payment-qr-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.qr-placeholder-text {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  padding: 12px;
  color: var(--muted);
  font-size: var(--text-xs);
  text-align: center;
}

.order-row-status.closed {
  color: var(--muted);
  background: color-mix(in srgb, var(--muted), transparent 88%);
}

.order-row-status.error {
  color: var(--danger);
  background: color-mix(in srgb, var(--danger), transparent 90%);
}

.clipboard-fallback {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
}
@media (max-width: 900px) {
  /* 窄屏预览仍保持双列，避免 Web 主题被误认为手机壳 */
  html.theme-web .product-grid,
  body.theme-web .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  html.theme-web .main-content,
  html.theme-web .topbar,
  html.theme-web .announce-bar,
  html.theme-web .icp-footer,
  body.theme-web .main-content,
  body.theme-web .topbar,
  body.theme-web .announce-bar,
  body.theme-web .icp-footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  html.theme-web .spec-option,
  body.theme-web .spec-option {
    flex: 1 1 calc(50% - 8px);
    max-width: 100%;
  }
  html.theme-web .form-row-qty-email,
  body.theme-web .form-row-qty-email {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  html.theme-web .app-shell,
  body.theme-web .app-shell { max-width: 100%; }
  html.theme-web .main-content,
  body.theme-web .main-content { padding: 16px 16px 32px; }
  html.theme-web .topbar,
  body.theme-web .topbar { padding: 12px 16px; min-height: 64px; }
  html.theme-web .detail-name,
  body.theme-web .detail-name { font-size: 22px; }
  html.theme-web .cs-fab,
  body.theme-web .cs-fab { right: 12px; }
  html.theme-web .product-grid,
  body.theme-web .product-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}