/* ============================================================
   VACTIRO v2 — Dual-path prototype
   ============================================================ */

:root {
  --bg: #F5F0E8;
  --surface: #FFFFFF;
  --surface-2: #F4EFE7;
  --dark: #1A1A1A;
  --mid: #2A2A2A;
  --text: #1A1A1A;
  --muted: #5A554F;
  --line: rgba(26,26,26,0.12);
  --line-2: rgba(26,26,26,0.20);

  --consumer: #E8621A;      /* orange — B2C path */
  --consumer-soft: rgba(232,98,26,0.10);
  --consumer-deep: #C2410C;  /* 深橙 — 按钮背景，白字对比度 ≥5:1（WCAG AA 达标）；--consumer 亮橙仅用于强调/大字 */
  --trade: #1A1A1A;         /* near-black — B2B path (按钮/小元素仍用) */
  --trade-soft: rgba(26,26,26,0.06);
  --trade-bg: #1A1A1A;      /* 大面积深色背景 — 真近黑，去棕灰土黄感 */
  --trade-bg-ink: #D9D2C5;  /* trade-bg 上的次级文字 */

  --ok: #2F7A4F;
  --ok-soft: rgba(47,122,79,0.10);
  --warn: #B07A1F;
  --warn-soft: rgba(176,122,31,0.12);
  --bad: #9A2D2D;

  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 18px;

  --shadow-sm: 0 1px 2px rgba(26,26,26,0.06), 0 1px 1px rgba(26,26,26,0.04);
  --shadow-md: 0 4px 14px rgba(26,26,26,0.08), 0 2px 4px rgba(26,26,26,0.04);
  --shadow-lg: 0 18px 48px rgba(26,26,26,0.11), 0 4px 12px rgba(26,26,26,0.05);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);   /* 入场 / scroll-reveal / 大段动画 */
  --ease-hover: cubic-bezier(0.2, 1, 0.2, 1);    /* hover / 微交互 / focus */

  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --pad: clamp(1rem, 4vw, 2.5rem);
  --max: 1200px;
  --hdr: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: 0; background: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
  border-radius: var(--r-sm);
}
/* Explicit focus targets — outline is the source of truth, never replaced by hover shadow */
.btn:focus-visible,
.vh-nav a:focus-visible,
.vh-mobile a:focus-visible,
.search-tab:focus-visible,
.cat-toggle button:focus-visible,
.pd-tablist button:focus-visible,
.pg-num:focus-visible,
.pg-step:focus-visible,
.product-card:focus-visible,
.line-card:focus-visible,
.chip-x:focus-visible,
.btn-link:focus-visible,
.vh-burger:focus-visible,
.uploader:focus-within,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}
.i12 { width: 12px; height: 12px; }
.i16 { width: 16px; height: 16px; }
.i20 { width: 20px; height: 20px; }
.i24 { width: 24px; height: 24px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.mono { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.02em; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.section-title { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 600; letter-spacing: -0.01em; line-height: 1.15; }
.section-lead { color: var(--muted); max-width: 56ch; margin-top: 0.6rem; }

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--r-md);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1.5px solid transparent;
  transition: background 140ms var(--ease-hover), color 140ms var(--ease-hover), border-color 140ms var(--ease-hover), transform 180ms var(--ease-hover), box-shadow 180ms var(--ease-hover);
  white-space: nowrap;
  cursor: pointer;
}
.btn svg { width: 14px; height: 14px; }
.btn-sm, .btn-dark-sm, .btn-ghost-sm { padding: 0.5rem 0.9rem; font-size: 0.8rem; border-radius: var(--r-md); }
.btn-dark, .btn-dark-sm {
  background: var(--trade-bg);
  color: var(--bg);
  border-color: var(--dark);
}
.btn-dark:hover, .btn-dark-sm:hover { background: #333333; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-consumer {
  background: var(--consumer);
  color: #1A1A1A;
  border-color: var(--consumer);
  font-weight: 600;
}
.btn-consumer:hover { background: var(--consumer); transform: translateY(-1px); box-shadow: var(--shadow-md); filter: saturate(1.12); }
.btn-ghost, .btn-ghost-sm {
  background: transparent;
  color: var(--dark);
  border-color: var(--line-2);
}
.btn-ghost:hover, .btn-ghost-sm:hover { border-color: var(--dark); }
.btn-link {
  background: transparent; border: 0; padding: 0;
  color: var(--dark); text-decoration: underline; text-underline-offset: 4px;
  font-weight: 600; font-size: 0.875rem;
}
.btn-block { width: 100%; justify-content: center; }

/* ============================================================
   HEADER
============================================================ */
.vh {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--hdr);
  background: rgba(245,240,232,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.vh-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.vh-brand { display: flex; align-items: center; gap: 0.6rem; }
.vh-mark { height: 30px; width: auto; }
.vh-logo { height: 22px; width: auto; }
.vh-nav { display: flex; gap: 1.4rem; margin-left: auto; }
.vh-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 0.3rem 0;
  transition: color 120ms var(--ease-hover);
}
.vh-nav a:hover { color: var(--consumer-deep); }
.vh-nav a.is-active { color: var(--consumer-deep); }
.vh-nav a::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 2px; background: var(--consumer);
  transform: scaleX(0); transform-origin: left;
  transition: transform 180ms var(--ease-hover);
}
.vh-nav a:hover::after,
.vh-nav a.is-active::after { transform: scaleX(1); }
.vh-cta { display: flex; gap: 0.5rem; align-items: center; }
/* 语言切换器（EN | ES | 中文）—— 桌面 header 右侧紧凑分段 */
.vh-lang {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  overflow: hidden;
}
.vh-lang a {
  padding: 0.4rem 0.5rem;
  font-family: var(--mono); font-size: 0.7rem; font-weight: 500; line-height: 1;
  color: var(--muted); letter-spacing: 0.02em;
  transition: background 140ms var(--ease-hover), color 140ms var(--ease-hover);
}
.vh-lang a + a { border-left: 1px solid var(--line); }
.vh-lang a:hover { color: var(--text); background: var(--trade-soft); }
.vh-lang a.is-active { color: var(--surface); background: var(--dark); font-weight: 600; }
.vh-burger { display: none; padding: 0.4rem; }
.vh-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem var(--pad) 1.5rem;
  gap: 0.4rem;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.vh-mobile a {
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  font-weight: 500;
}
.vh-mobile a.btn { border-bottom: 0; margin-top: 0.6rem; justify-content: center; }
/* 移动菜单内的语言切换器：一排等宽分段 */
.vh-mobile-lang { display: flex; gap: 0.5rem; margin-top: 0.9rem; }
.vh-mobile-lang a {
  flex: 1; text-align: center; padding: 0.6rem 0; border: 1px solid var(--line-2);
  border-radius: var(--r-md); font-family: var(--mono); font-size: 0.78rem; font-weight: 500;
  color: var(--muted);
}
.vh-mobile-lang a.is-active { color: var(--surface); background: var(--dark); border-color: var(--dark); font-weight: 600; }

@media (max-width: 880px) {
  .vh-nav { display: none; }
  /* 移动端 header 保留 Cart 入口（电商惯例：加购后购物车始终可见），其余 CTA 收进菜单 */
  .vh-cta { display: flex; margin-left: auto; }
  .vh-cta > *:not(.vh-cart) { display: none; }
  .vh-burger { display: inline-flex; margin-left: 0.5rem; }
  .vh-mobile.is-open { display: flex; }
}
@media (max-width: 480px) {
  /* 窄屏 header 收紧：logo + Cart + Menu 在 375px 内不重叠 */
  .vh-inner { gap: 0.6rem; }
  .vh-mark { height: 26px; }
  .vh-logo { height: 17px; }
  .vh-cart { padding: 0.35rem 0.55rem; font-size: 0.72rem; }
  .vh-burger { padding: 0.4rem 0.6rem; margin-left: 0.35rem; }
}
@media (max-width: 360px) {
  /* 极窄屏（老 SE 等）：字标让位给 Cart，品牌由 V 图标承担 */
  .vh-logo { display: none; }
}

/* ============================================================
   PROTOTYPE STRIP (review-only)
============================================================ */
.proto-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.5rem var(--pad);
  background: var(--trade-bg);
  color: #f5f0e8aa;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid #000;
}
.proto-strip .proto-lab { color: var(--consumer); margin-right: 0.8rem; }
.proto-strip a { padding: 0.25rem 0.55rem; border-radius: 4px; border: 1px solid #ffffff14; color: #f5f0e8cc; }
.proto-strip a:hover { background: #ffffff14; color: var(--bg); }
.proto-strip a.is-active { background: var(--consumer); border-color: var(--consumer); color: #fff; }

/* ============================================================
   FOOTER
============================================================ */
.vf {
  margin-top: 6rem;
  background: var(--trade-bg);
  color: #d0c9bd;
  padding: 3rem var(--pad) 1.5rem;
}
.vf-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.vf-brand strong { color: var(--bg); font-size: 1rem; letter-spacing: 0.12em; display: block; margin: 0.6rem 0 0.5rem; }
.vf-brand p { font-size: 0.85rem; line-height: 1.55; max-width: 32ch; }
.vf-col h2 { color: var(--bg); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 0.9rem; font-weight: 600; }
.vf-col a { display: block; padding: 0.3rem 0; font-size: 0.85rem; color: #d0c9bd; }
.vf-col a:hover { color: var(--bg); }
.vf-bottom {
  max-width: var(--max);
  margin: 2.5rem auto 0;
  padding-top: 1.4rem;
  border-top: 1px solid #ffffff18;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: 0.78rem;
  color: #ada69a;
}
.vf-honest { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; }
@media (max-width: 880px) {
  .vf-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .vf-bottom { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   VIEW CONTAINER
============================================================ */
main#view { min-height: 70vh; }
.route { animation: fadeIn 200ms ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ============================================================
   SCROLL REVEAL + METRICS（克制精致动画）
   渐进增强：仅当 JS 加上 html.anim 才隐藏初态；
   无 JS / 不支持 IntersectionObserver / prefers-reduced-motion → 元素正常显示（降级安全）。
   ============================================================ */
html.anim [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
html.anim [data-reveal].in { opacity: 1; transform: none; }

/* 诚实 metrics 卡（真实数据，数字滚动入场）*/
.metrics { padding: 2.2rem 0; border-top: 1px solid var(--line); }
.metrics-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.metric { display: flex; flex-direction: column; gap: 0.35rem; text-align: center; }
.metric-num {
  font-family: var(--mono);
  font-size: clamp(1.5rem, 2.9vw, 2.2rem);
  font-weight: 600;
  color: var(--dark);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
}
.metric-label { font-size: 0.7rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 720px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 1.6rem 1rem; }
  .metrics-grid .metric:last-child { grid-column: 1 / -1; }
}

/* ============================================================
   HOMEPAGE
============================================================ */
.hero {
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.5rem);
  background:
    linear-gradient(100deg, var(--bg) 0%, var(--bg) 34%, rgba(245,240,232,0.85) 48%, rgba(245,240,232,0.25) 74%, rgba(245,240,232,0) 100%),
    url('assets/brand/hero-bg.jpg?v=779a8f32') right center / cover no-repeat,
    var(--bg);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.92fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.6rem, 6.2vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin-top: 1rem;
}
.hero h1 .hl { color: var(--consumer); }
.hero p.lede {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  color: var(--muted);
  margin-top: 1.2rem;
  max-width: 48ch;
}
.lede-punch { color: var(--consumer-deep); font-weight: 600; }
.vf-slogan { color: var(--bg); font-weight: 600; font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.04em; margin: 0.4rem 0 0.2rem; }
.hero-paths {
  margin-top: 1.6rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Hero 元素错峰入场（仅 html.anim 时；reduced-motion / 无 JS 不播，元素正常显示）*/
@keyframes heroRise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
html.anim .hero .eyebrow { animation: heroRise 0.65s var(--ease-out) both; }
html.anim .hero h1       { animation: heroRise 0.65s var(--ease-out) 0.08s both; }
html.anim .hero p.lede   { animation: heroRise 0.65s var(--ease-out) 0.16s both; }
html.anim .hero-paths    { animation: heroRise 0.65s var(--ease-out) 0.24s both; }
html.anim .search-card   { animation: heroRise 0.65s var(--ease-out) 0.32s both; }

/* Big dual-mode search module */
.search-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-md);
}
.search-tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--bg);
  padding: 0.3rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}
.search-tab {
  flex: 1;
  padding: 0.6rem 0.8rem;
  font-weight: 600;
  font-size: 0.8rem;
  border-radius: 6px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.search-tab svg { width: 16px; height: 16px; }
.search-tab.is-active {
  background: var(--trade-bg);
  color: var(--bg);
}
.search-fields {
  display: grid;
  gap: 0.6rem;
  margin-top: 1rem;
}
.search-fields.mode-vehicle { grid-template-columns: repeat(4, 1fr); }
.search-fields.mode-ref { grid-template-columns: 1fr; }
.search-fields.mode-browse { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 560px) {
  /* 3 个产品线芯片在手机一行塞不下(内容约 496px)→ 单列堆叠,杜绝 Hydro-Boosters 被右边切掉 */
  .search-fields.mode-browse { grid-template-columns: 1fr; }
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.field label {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input, .field select, .field textarea {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  padding: 0.7rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text);
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--consumer);
  box-shadow: 0 0 0 3px var(--consumer-soft);
  outline: none;
}
.field textarea { resize: vertical; min-height: 90px; line-height: 1.5; }
.search-submit {
  margin-top: 0.9rem;
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  align-items: center;
}
.search-hint {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}
.search-note {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.74rem;
  line-height: 1.45;
  color: var(--muted);
}
.search-note svg { color: var(--consumer); flex-shrink: 0; margin-top: 1px; }

/* trust strip */
.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  padding: 1.4rem 0;
}
.trust-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.4rem;
}
.trust-cell {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-size: 0.82rem;
  line-height: 1.4;
}
.trust-cell svg { width: 18px; height: 18px; color: var(--consumer); flex-shrink: 0; margin-top: 2px; }
.trust-cell strong { display: block; font-size: 0.78rem; font-weight: 600; margin-bottom: 0.1rem; }
.trust-cell span { color: var(--muted); font-size: 0.78rem; }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .search-fields.mode-vehicle { grid-template-columns: 1fr 1fr; }
  .trust-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .trust-row { grid-template-columns: 1fr; }
}

/* Dual-path band */
.paths {
  padding: 4rem 0;
}
.paths-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.path-card {
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-xl);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  box-shadow: var(--shadow-sm);
  transition: transform 180ms var(--ease-hover), box-shadow 180ms var(--ease-hover);
}
.path-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.path-card .path-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.path-card.consumer { border-color: var(--consumer); }
.path-card.consumer .path-label { color: var(--consumer-deep); }
.path-card.trade { background: var(--trade-bg); color: var(--bg); border-color: var(--trade-bg); }
.path-card.trade .path-label { color: #ffffff80; }
.path-card.trade .path-desc { color: var(--trade-bg-ink); }
.path-card h2 { font-size: 1.5rem; font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; }
.path-card ul { display: flex; flex-direction: column; gap: 0.45rem; margin-top: 0.2rem; }
.path-card li { display: flex; gap: 0.55rem; font-size: 0.88rem; align-items: flex-start; }
.path-card li svg { width: 14px; height: 14px; color: var(--consumer); flex-shrink: 0; margin-top: 5px; }
.path-card.trade li svg { color: var(--bg); }
.path-card .path-cta { margin-top: auto; padding-top: 1rem; }
@media (max-width: 720px) { .paths-grid { grid-template-columns: 1fr; } }

/* Product lines on home */
.lines {
  padding: 1rem 0 4rem;
}
.lines-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.lines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.line-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 140ms var(--ease-hover), transform 180ms var(--ease-hover), box-shadow 180ms var(--ease-hover);
}
.line-card:hover { border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.line-card .line-glyph {
  /* 全量覆盖 L1134 遗留全局 .line-glyph{56px 圆形 icon}——width/radius/display 一项都不能漏 */
  display: block; width: 100%; height: auto; aspect-ratio: 16/9;   /* 与生成图同比例:零黑边零裁切 */
  background: #0E0D0C;                /* 黑底 cutaway 满铺成深色 tile,告别"白卡浮黑块" */
  border: 0; border-bottom: 1px solid var(--line); border-radius: 0;
  overflow: hidden;
}
.line-card .line-glyph img { width: 100%; height: 100%; object-fit: contain; }
.line-card h3 { font-size: 1.1rem; font-weight: 600; }
.line-card p { font-size: 0.85rem; color: var(--muted); }
.line-card .line-count {
  margin-top: auto;
  padding-top: 0.8rem;
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
}
.line-card.placeholder { background: var(--surface); border-style: dashed; }
.line-card.placeholder h4 { color: var(--muted); }
.line-card.placeholder .pill { background: var(--warn-soft); color: var(--warn); }
.pill {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--surface);
  color: var(--dark);
}
.pill.ok { background: var(--ok-soft); color: var(--ok); }
.pill.warn { background: var(--warn-soft); color: var(--warn); }
.pill.consumer { background: var(--consumer-soft); color: var(--consumer-deep); }
.pill.trade { background: var(--trade-bg); color: var(--bg); }

@media (max-width: 880px) { .lines-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .lines-grid { grid-template-columns: 1fr; } }

/* ============================================================
   CATALOG / FIND PARTS PAGE
============================================================ */
.cat-hero {
  padding: 2.4rem 0 1.5rem;
  border-bottom: 1px solid var(--line);
}
.crumb {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem;
}
.crumb .sep { margin: 0 0.4rem; color: var(--line-2); }
.cat-hero h1 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); font-weight: 600; letter-spacing: -0.01em; }
.cat-hero p { color: var(--muted); margin-top: 0.5rem; max-width: 60ch; }

.cat-search {
  margin-top: 1.5rem;
}
.cat-toggle {
  display: inline-flex;
  background: var(--surface);
  padding: 0.3rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.cat-toggle button {
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 6px;
  color: var(--muted);
  display: inline-flex; align-items: center; gap: 0.4rem;
}
.cat-toggle button.is-active { background: var(--trade-bg); color: var(--bg); }
.cat-toggle button svg { width: 14px; height: 14px; }

.cat-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
  padding-top: 2rem; padding-bottom: 4rem;   /* 勿用简写:会抹掉 .container 左右 padding */
}
.cat-filters {
  border-right: 1px solid var(--line);
  padding-right: 1.4rem;
}
.filter-group { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.filter-group:last-child { border-bottom: 0; }
.filter-group h5 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.6rem;
}
.filter-row { display: flex; flex-direction: column; gap: 0.4rem; }
.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  padding: 0.3rem 0;
  cursor: pointer;
}
.check input { width: 14px; height: 14px; accent-color: var(--consumer); }
.check .count { margin-left: auto; color: var(--muted); font-family: var(--mono); font-size: 0.72rem; }

.cat-results .results-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.results-head strong { color: var(--dark); }

.result-group {
  margin-bottom: 2rem;
}
.result-group-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  margin-bottom: 0.9rem;
}
.result-group-head .rg-dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--ok);
}
.result-group.needs .rg-dot { background: var(--warn); }
.result-group.none .rg-dot { background: var(--muted); }
.result-group-head h3 { font-size: 0.95rem; font-weight: 600; }
.result-group-head .rg-count { margin-left: auto; font-family: var(--mono); font-size: 0.78rem; color: var(--muted); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: border-color 140ms var(--ease-hover), transform 180ms var(--ease-hover), box-shadow 180ms var(--ease-hover);
}
.product-card:hover { border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.pc-photo {
  aspect-ratio: 1/1;
  background: var(--surface);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.pc-photo img { width: 100%; height: 100%; object-fit: contain; padding: 0; box-sizing: border-box; }
.pc-photo.pending {
  background: var(--surface);
  background-image: repeating-linear-gradient(135deg, rgba(232, 98, 26, 0.045) 0 2px, transparent 2px 13px);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
}
.pc-pending-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.pc-photo .pc-status { display: none; }
.pc-body { padding: 0.9rem 1rem 1rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.pc-line {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.pc-title { font-size: 0.95rem; font-weight: 600; line-height: 1.3; }
.pc-meta { color: var(--muted); font-size: 0.78rem; }
.pc-chips { display: flex; gap: 0.3rem; flex-wrap: wrap; margin-top: 0.3rem; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.18rem 0.45rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  background: var(--surface);
  color: var(--dark);
}
.chip.oe { background: var(--surface); color: var(--dark); border-color: var(--line-2); }
.chip.cardone { background: var(--trade-soft); color: var(--dark); border-color: transparent; }
.pc-actions {
  margin-top: auto;
  padding-top: 0.6rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem;
}
.pc-actions .btn { padding: 0.5rem 0.7rem; font-size: 0.78rem; }
/* 西语按钮文案长（Agregar al carrito + Cotización por volumen）窄卡并排会溢出截断 → 西语版改竖排；英/中短文案保持并排（Yi 批过的英文版不动） */
html[lang="es"] .pc-actions { grid-template-columns: 1fr; }

@media (max-width: 880px) {
  .cat-layout { grid-template-columns: 1fr; }
  /* 移动端筛选折叠：默认只留 Filters 按钮，商品直接进首屏；点开才展开三组 */
  .cat-filters { display: none; border-right: 0; border-bottom: 1px solid var(--line); padding-right: 0; padding-bottom: 1.2rem; }
  .cat-filters.is-open { display: block; }
  .cat-filter-toggle { display: inline-flex; }
}

/* ============================================================
   PRODUCT DETAIL
============================================================ */
.pd {
  padding-top: 2rem; padding-bottom: 4rem;   /* 勿用简写:会抹掉 .container 的左右 var(--pad) */
}
.pd-back { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.82rem; color: var(--muted); margin-bottom: 1rem; }
.pd-back:hover { color: var(--dark); }
.pd-top {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
  align-items: start;
}
.pd-gallery .pd-main {
  aspect-ratio: 1/1;
  background: var(--surface);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.pd-gallery .pd-main img { width: 100%; height: 100%; object-fit: contain; padding: 0; box-sizing: border-box; cursor: zoom-in; }
/* 桌面 hover 局部放大镜（手机无 hover 时隐藏，改走点击灯箱） */
.pd-lens { position: absolute; width: 168px; height: 168px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.85); box-shadow: 0 6px 22px rgba(0,0,0,0.28); background-repeat: no-repeat; background-color: #fff; pointer-events: none; opacity: 0; transition: opacity 0.14s ease; z-index: 6; }
.pd-lens.on { opacity: 1; }
@media (hover: none), (pointer: coarse) { .pd-lens { display: none; } }
.pd-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));   /* 5 张也排一行,不再孤张掉行 */
  gap: 0.5rem;
  margin-top: 0.6rem;
}
.pd-thumbs button {
  aspect-ratio: 1;
  border-radius: var(--r-sm);
  overflow: hidden;
  border: 1.5px solid transparent;
  background: var(--surface);
}
.pd-thumbs button.is-active { border-color: var(--dark); }
.pd-thumbs img { width: 100%; height: 100%; object-fit: contain; padding: 0; box-sizing: border-box; }

/* 主图点击放大 lightbox */
.lightbox-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(15, 14, 13, 0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 4vw; cursor: zoom-out;
  opacity: 0; transition: opacity 0.2s ease;
}
.lightbox-overlay.in { opacity: 1; }
.lightbox-overlay img { max-width: 100%; max-height: 100%; object-fit: contain; border-radius: var(--r-md); background: var(--surface); }
.lightbox-close {
  position: absolute; top: 1.1rem; right: 1.4rem;
  width: 2.6rem; height: 2.6rem; border-radius: 50%;
  background: rgba(255, 255, 255, 0.14); color: #fff; border: none;
  font-size: 1.7rem; line-height: 1; cursor: pointer; transition: background 0.15s ease;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.26); }

.pd-info .pd-line { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--consumer-deep); }
.pd-info h1 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 600; line-height: 1.1; margin: 0.4rem 0 0.5rem; letter-spacing: -0.01em; }
.pd-info .pd-sku { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); }
.pd-chip-block { margin: 0.7rem 0; background: var(--consumer-soft); border: 1px solid var(--line); border-radius: var(--r-md); padding: 0.65rem 0.8rem; }
.pd-badges { margin: 0.5rem 0 0.2rem; }
.pd-badge { display: inline-block; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.05em; text-transform: uppercase; color: #1a7f4b; background: rgba(26,127,75,0.09); border: 1px solid rgba(26,127,75,0.22); padding: 0.3rem 0.7rem; border-radius: 100px; }
.chip-note { font-family: Inter, system-ui, sans-serif; font-size: 0.64rem; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--muted); margin-left: 0.4rem; }
.pd-chip-block h6, .pd-chip-block h3 {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.4rem;
}
.pd-chip-block .pd-chips { display: flex; gap: 0.3rem; flex-wrap: wrap; }

.fitchecker {
  margin: 1.4rem 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.1rem;
  background: var(--surface);
}
.fitchecker h6, .fitchecker h3 { font-family: var(--mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.6rem; }
.fitchecker-form { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; }
.fitchecker-form select { width: 100%; min-width: 0; text-overflow: ellipsis; }
.fitchecker-form .btn { grid-column: 1 / -1; }
/* 西语 "Cualquier año/marca/modelo/motor" 比英文 "Any year" 长，4 列窄 select 会截断成 "Cualquier ..." → 西语改 2×2 */
html[lang="es"] .fitchecker-form { grid-template-columns: repeat(2, 1fr); }
.fitchecker-state {
  margin-top: 0.8rem;
  padding: 0.7rem 0.9rem;
  border-radius: var(--r-md);
  display: flex; gap: 0.6rem; align-items: flex-start;
  font-size: 0.85rem;
}
.fitchecker-state.ok { background: var(--ok-soft); color: var(--ok); }
.fitchecker-state.likely { background: var(--warn-soft); color: var(--warn); }
.fitchecker-state.none { background: var(--surface-2); color: var(--muted); }
.fitchecker-state.idle { background: var(--surface); color: var(--muted); }
.fitchecker-state.verify { background: var(--surface-2); color: var(--text); }
.fitchecker-state.idle strong,
.fitchecker-state.verify strong { color: var(--text); }
.fitchecker-state svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 2px; }

.pd-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; }

/* Tabs */
.pd-tabs {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.pd-tablist {
  display: flex;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
.pd-tablist button {
  padding: 1rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.pd-tablist button.is-active { color: var(--dark); border-bottom-color: var(--consumer); }
/* 西语 8 个 tab 文案长，桌面溢出 ~24px(末尾 tab 被横滚) → 西语收紧内边距让其完整放下 */
html[lang="es"] .pd-tablist button { padding-left: 1rem; padding-right: 1rem; }
.pd-panel { padding: 1.6rem 0; display: none; }
.pd-panel.is-active { display: block; }

.fitment-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.fitment-table th, .fitment-table td {
  text-align: left;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
}
.fitment-table th {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  background: var(--surface);
}
.fitment-table tr:hover td { background: var(--surface); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll .fitment-table { min-width: 420px; }
.fitment-wrap { position: relative; }
.fitment-wrap.is-collapsed { max-height: 33rem; overflow: hidden; }
.fitment-wrap.is-collapsed::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 4.5rem; background: linear-gradient(to bottom, transparent, var(--bg)); pointer-events: none; }
.fitment-expand { display: block; width: 100%; margin-top: 0.8rem; padding: 0.7rem 1rem; background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--r-md); font-family: var(--mono); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; color: var(--text); cursor: pointer; transition: border-color 0.12s, background 0.12s; }
.fitment-expand:hover { border-color: var(--consumer); background: var(--surface-2); }

.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.pd-overview-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem; }
@media (max-width: 880px) {
  .pd-overview-grid { grid-template-columns: 1fr; gap: 1.2rem; }   /* 375 双栏挤成竖条,移动端堆叠 */
  .ref-grid { grid-template-columns: 1fr; }
}
.ref-col h6, .ref-col h3 { font-family: var(--mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem; }
.ref-col .ref-list { display: flex; flex-direction: column; gap: 0.3rem; }
.ref-list code {
  font-family: var(--mono);
  font-size: 0.85rem;
  background: var(--surface);
  padding: 0.35rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--line);
  display: inline-block;
}

.honest-box {
  background: var(--warn-soft);
  border: 1px solid var(--warn);
  border-radius: var(--r-md);
  padding: 1rem 1.1rem;
  font-size: 0.85rem;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
}
.honest-box svg { width: 18px; height: 18px; color: var(--warn); flex-shrink: 0; margin-top: 2px; }
.honest-box strong { display: block; font-weight: 600; margin-bottom: 0.2rem; color: var(--dark); }
.honest-box span { color: var(--mid); }

@media (max-width: 880px) {
  .pd-top { grid-template-columns: 1fr; }
  .fitchecker-form { grid-template-columns: 1fr 1fr; }
  .ref-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   FORMS: B2C REQUEST / B2B RFQ / CONTACT
============================================================ */
.formpage {
  padding: 2.4rem 0 4rem;
}
.formpage-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 3rem;
  align-items: start;
}
.formpage h1 { font-size: clamp(1.8rem, 3.6vw, 2.4rem); font-weight: 600; letter-spacing: -0.01em; }
.formpage .lede { color: var(--muted); margin-top: 0.5rem; max-width: 56ch; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.6rem;
  margin-top: 1.6rem;
}
.form-card .field { margin-bottom: 1rem; }
.form-card .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }
.form-card .field-row.three { grid-template-columns: 1fr 1fr 1fr; }
.form-card .req { color: var(--consumer); }
.form-card .helper { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); margin-top: 0.25rem; letter-spacing: 0.02em; }
.form-card .form-submit {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  margin-top: 0.5rem;
  gap: 0.8rem;
  flex-wrap: wrap;
}
.form-card .form-submit .privacy { font-family: var(--mono); font-size: 0.68rem; color: var(--muted); letter-spacing: 0.06em; }
/* 询盘 CTA 旁信任三件套：信号放到决策点（Baymard:位置 > 类型） */
.cta-trust { display: flex; align-items: center; gap: 0.45rem; font-size: 0.74rem; color: var(--muted); margin: 0 0 0.75rem; line-height: 1.4; }
.cta-trust svg { color: var(--consumer); flex-shrink: 0; }

.uploader {
  border: 2px dashed var(--line-2);
  border-radius: var(--r-md);
  padding: 1.4rem;
  text-align: center;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}
.uploader svg { width: 28px; height: 28px; color: var(--muted); }
.uploader strong { font-size: 0.9rem; font-weight: 600; }
.uploader span { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }

.what-happens {
  position: sticky;
  top: calc(var(--hdr) + 1rem);
  background: var(--trade-bg);
  color: var(--bg);
  border-radius: var(--r-lg);
  padding: 1.6rem;
}
.what-happens h5 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #ffffff80;
  margin-bottom: 1rem;
}
.what-happens ol { list-style: none; counter-reset: wh; display: flex; flex-direction: column; gap: 1rem; }
.what-happens li { counter-increment: wh; position: relative; padding-left: 2.2rem; font-size: 0.9rem; line-height: 1.45; }
.what-happens li::before {
  content: counter(wh, decimal-leading-zero);
  position: absolute; left: 0; top: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--consumer-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.what-happens li strong { display: block; font-weight: 600; margin-bottom: 0.1rem; color: var(--bg); }
.what-happens li span { color: #d0c9bd; font-size: 0.82rem; }

.success-card {
  background: var(--trade-bg);
  color: var(--bg);
  border-radius: var(--r-lg);
  padding: 2rem;
  margin-top: 1.6rem;
}
.success-card .ok-dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: var(--consumer);
  border-radius: 50%;
  color: #fff;
  margin-bottom: 0.8rem;
}
.success-card .ok-dot svg { width: 20px; height: 20px; }
.success-card h2 { font-size: 1.3rem; font-weight: 600; }
.success-card p { color: #d0c9bd; margin-top: 0.5rem; max-width: 52ch; font-size: 0.9rem; }
.success-card .next-steps { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid #ffffff20; }
.success-card .next-steps strong { display: block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; color: #ffffff80; margin-bottom: 0.5rem; }
.success-card .ref-id { font-family: var(--mono); font-size: 0.85rem; color: var(--consumer-deep); }

@media (max-width: 880px) {
  .formpage-grid { grid-template-columns: 1fr; }
  .what-happens { position: static; }
  .form-card .field-row, .form-card .field-row.three { grid-template-columns: 1fr; }
}

/* ============================================================
   CONTACT
============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
  align-items: stretch;   /* 两列等高，底部对齐 */
}
.contact-grid > div:first-child { display: flex; flex-direction: column; justify-content: space-between; gap: 1rem; }
.contact-grid > .form-card { display: flex; flex-direction: column; }
.contact-grid > .form-card .form-submit { margin-top: auto; }   /* 表单提交行推到底，与左栏 honest-box 底部对齐 */
.contact-grid > .form-card { margin-top: 0; }  /* 覆盖 .form-card 的默认 1.6rem 顶距，让 contact 两栏顶端对齐 */
.contact-block {
  padding: 1.6rem;
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
}
.contact-block h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.4rem; }
.contact-block .row {
  display: flex; gap: 0.6rem; align-items: flex-start;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.contact-block .row:last-child { border-bottom: 0; }
.contact-block .row svg { width: 18px; height: 18px; color: var(--consumer); margin-top: 2px; flex-shrink: 0; }
.contact-block .row strong { font-size: 0.85rem; font-weight: 600; display: block; }
.contact-block .row span { font-size: 0.82rem; color: var(--muted); }
.contact-block a { color: var(--dark); border-bottom: 1px solid var(--consumer); }
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }

/* ============================================================
   RATIONALE PAGE
============================================================ */
.rationale {
  padding: 2.4rem 0 5rem;
  max-width: 760px;
  margin: 0 auto;
}
.rationale h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 600; letter-spacing: -0.01em; }
.rationale h2 { font-size: 1.1rem; font-weight: 600; margin: 2.2rem 0 0.4rem; }
.rationale p { color: var(--mid); margin: 0.5rem 0; font-size: 0.95rem; line-height: 1.6; }
.rationale ul { margin: 0.4rem 0 0.4rem 1.4rem; }
.rationale li { color: var(--mid); margin: 0.25rem 0; font-size: 0.92rem; }
.rationale .lede { font-size: 1.05rem; color: var(--muted); margin-top: 0.5rem; }
.rationale code {
  font-family: var(--mono);
  font-size: 0.85rem;
  background: var(--surface);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
}

/* ============================================================
   CATALOG — PAGINATION, CHIPS, EMPTY STATE, SORT
   (appended for icon-free, paginated v2)
============================================================ */

/* Re-tighten buttons now that icons are gone — keep balanced padding */
.btn { padding: 0.7rem 1.1rem; line-height: 1; }
.btn-sm, .btn-dark-sm, .btn-ghost-sm { padding: 0.5rem 0.85rem; line-height: 1; }

/* Line-glyph as text marker (replaces the icon discs) */
.line-glyph {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface);
  color: var(--dark);
  border: 1px solid var(--line);
  border-radius: 50%;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}
.line-card.placeholder .line-glyph { border-style: dashed; color: var(--muted); }

.vf-brand strong { margin-top: 0; }

/* Burger button styled as text */
.vh-burger {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  color: var(--dark);
  background: var(--bg);
}
.vh-burger:hover { border-color: var(--dark); }

/* Catalog mode buttons — remove icon-related left padding */
.cat-toggle button { padding: 0.55rem 1rem; }
.search-tab { padding: 0.65rem 0.9rem; }
@media (max-width: 480px) {
  /* 3 个 tab 在主流手机宽(390/414)塞不下一行(实测约 392px)→ 等分占满 + 缩 padding/字号,杜绝 "By product line" 折到第二行 */
  .cat-toggle { display: flex; width: 100%; }
  .cat-toggle button { flex: 1; justify-content: center; padding: 0.5rem 0.3rem; font-size: 0.73rem; }
}

/* Results head: 2-row layout (chips/count + sort/empty-toggle) */
.results-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--bg);
  margin-bottom: 1rem;
}
.results-head-left { display: flex; flex-direction: column; gap: 0.55rem; min-width: 0; }
.results-count {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
}
.results-count strong { color: var(--dark); }
.results-chips {
  display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
}
.results-head-right {
  display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; justify-content: flex-end;
}
.sort-control {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.sort-control select {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 0.4rem 0.55rem;
  font-size: 0.82rem;
  font-family: var(--sans);
  letter-spacing: 0;
  text-transform: none;
  color: var(--dark);
}

.chip.removable {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding-right: 0.25rem;
}
.chip-x {
  display: inline-flex; align-items: center; justify-content: center;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: rgba(26,26,26,0.08);
  color: var(--dark);
  font-size: 0.78rem;
  line-height: 1;
  padding: 0;
  cursor: pointer;
}
.chip-x:hover { background: var(--trade-bg); color: var(--bg); }
.chips-clear {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--consumer-deep);
  border: 0;
  background: transparent;
  padding: 0.15rem 0.4rem;
  cursor: pointer;
}
.chips-clear:hover { text-decoration: underline; text-underline-offset: 3px; }

/* Pagination */
.pager-shell { margin-bottom: 1rem; }
.pager {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.4rem 0;
}
.pg-nums { display: flex; gap: 0.25rem; }
.pg-num, .pg-step {
  font-family: var(--mono);
  font-size: 0.8rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  background: var(--bg);
  color: var(--dark);
  min-width: 36px;
  text-align: center;
  cursor: pointer;
  letter-spacing: 0.02em;
}
.pg-num:hover, .pg-step:not(:disabled):hover {
  border-color: var(--dark);
  background: var(--surface);
}
.pg-num.is-active {
  background: var(--trade-bg);
  color: var(--bg);
  border-color: var(--dark);
}
.pg-step:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pg-ellipsis {
  display: inline-flex; align-items: center;
  padding: 0 0.4rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* Bottom controls block */
.results-foot {
  margin-top: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.load-more-block {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.lm-hint {
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}
.results-foot-ask {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.9rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-size: 0.88rem;
  color: var(--muted);
}
.results-foot-ask .btn-link { font-size: 0.88rem; color: var(--consumer-deep); border-bottom: 1px solid var(--consumer-deep); padding-bottom: 1px; text-decoration: none; }

/* Empty state */
.empty-state {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 2rem;
}
.empty-state-head {
  text-align: left;
  margin-bottom: 1.4rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--line);
}
.empty-eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warn);
}
.empty-state-head h3 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 0.3rem;
}
.empty-state-head p {
  color: var(--muted);
  margin-top: 0.4rem;
  max-width: 60ch;
  font-size: 0.92rem;
}
.empty-state .form-card {
  background: var(--surface);
  margin-top: 0;
}

/* Responsive: stack head rows on narrow */
@media (max-width: 720px) {
  .results-head { grid-template-columns: 1fr; }
  .results-head-right { justify-content: flex-start; }
}

/* ============================================================
   FINAL POLISH — hero photo, single-column forms, contact
============================================================ */

/* Hero image — same angle/crop/radius as product detail */
.hero-photo {
  margin: 2.4rem auto 0;
  max-width: 1080px;
  aspect-ratio: 16 / 7;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 40%;
}
.hero-photo.pending::after {
  content: 'Photo pending';
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-photo-cap {
  position: absolute;
  left: 1rem; bottom: 1rem;
  padding: 0.35rem 0.6rem;
  background: rgba(26,26,26,0.78);
  color: var(--bg);
  border-radius: var(--r-sm);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
@media (max-width: 720px) {
  .hero-photo { aspect-ratio: 4 / 3; }
}

/* Product detail main — match hero radius */
.pd-gallery .pd-main {
  aspect-ratio: 1/1;
  border-radius: var(--r-lg);
}

/* Product card photo — same radius corner story */
.pc-photo { aspect-ratio: 1/1; }

/* Single-column form layout */
.form-card.single-col .field-row {
  display: grid; gap: 0.8rem;
}
.form-card .field-row { grid-template-columns: 1fr 1fr; }
.form-card .field-row.three { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 720px) {
  .form-card .field-row,
  .form-card .field-row.three { grid-template-columns: 1fr; }
}

.field-section {
  margin: 0.4rem 0 0.6rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}
.field-section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.field-or {
  display: flex; align-items: center; gap: 0.6rem;
  margin: 0.4rem 0;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.field-or::before,
.field-or::after {
  content: '';
  flex: 1; height: 1px; background: var(--line);
}

.opt {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  margin-left: 0.4rem;
}

/* Contact block — rows without left icons */
.contact-block .row {
  gap: 0; align-items: flex-start; flex-direction: column;
  padding: 0.85rem 0;
}
.contact-block .row strong { margin-bottom: 0.15rem; }
.honest-box {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--mid);
  display: block;
}
.honest-box strong { color: var(--dark); margin-bottom: 0.25rem; }
.honest-box span { color: var(--muted); display: block; }

/* Uploader without icon — tighten */
.uploader { padding: 1.2rem; gap: 0.3rem; }
.uploader strong { font-size: 0.88rem; }

/* Eyebrow / mono link colors stay restrained */
.btn-link { color: var(--dark); }

/* ============================================================
   BUTTON CENTERING — flex center across all button-like surfaces
============================================================ */
.btn,
.btn-sm, .btn-dark-sm, .btn-ghost-sm,
a.btn, span.btn,
.search-tab,
.cat-toggle button,
.pd-tablist button,
.pg-num, .pg-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1;
  gap: 0;
}
/* .vh-burger 单独处理：桌面隐藏（.vh-burger 第 185 行 display:none），
   手机的 @media (max-width: 880px) 内会改成 inline-flex 并加上 flex 居中 */
.vh-burger {
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1;
  gap: 0;
}
/* Pager number / step buttons keep their min-width; text auto-centers via flex */
.pg-num, .pg-step { min-width: 36px; }
/* Block buttons stay full-width and centered */
.btn-block { width: 100%; }
/* Product card action buttons centered within their grid cells */
.pc-actions .btn { width: auto; }

/* ============================================================
   MOTION POLISH — 120ms button/tab transitions, fades, reduced-motion
============================================================ */

/* Reset any older 140ms transitions to a unified 120ms surface */
.btn,
.pg-num, .pg-step,
.search-tab,
.cat-toggle button,
.pd-tablist button,
.product-card,
.line-card,
.chip-x,
.vh-nav a,
.proto-strip a {
  transition:
    background-color 120ms var(--ease-hover),
    color 120ms var(--ease-hover),
    border-color 120ms var(--ease-hover),
    box-shadow 180ms var(--ease-hover),
    transform 180ms var(--ease-hover);
}
.btn:active { transform: translateY(1px); }

/* Route fade-in — already exists; soften */
.route { animation: fadeIn 220ms cubic-bezier(0.4, 0, 0.2, 1); }

/* Product detail gallery crossfade */
.pd-main { position: relative; }
.pd-main img {
  transition: opacity 260ms ease;
  opacity: 1;
}
.pd-main img.is-fading { opacity: 0; }

/* Catalog: newly-loaded cards fade in */
.product-card.is-just-added {
  animation: cardIn 260ms cubic-bezier(0.4, 0, 0.2, 1) both;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* Tab underline transition */
.pd-tablist button { border-bottom: 2px solid transparent; }
.search-tab, .cat-toggle button { transition: background-color 120ms ease, color 120ms ease; }

/* Honor prefers-reduced-motion globally */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .route { animation: none !important; }
  .pd-main img { transition: none !important; }
  .product-card.is-just-added { animation: none !important; }
}

/* ============================================================
   COMBOBOX — typeahead Year/Make/Model/Engine fields
   ============================================================ */
.field.combo { position: relative; }
.field.combo input[data-combo-input] {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.2;
}
.field.combo input[data-combo-input]::placeholder { color: var(--muted); }
.field.combo input[data-combo-input]:focus { border-color: var(--dark); outline: 0; }

/* Locked 状态：model / engine 在 year+make 选定前不可用 */
.field.combo.is-locked label { opacity: 0.55; }
.field.combo.is-locked input[data-combo-input] {
  cursor: not-allowed;
  opacity: 0.55;
  background: var(--surface-2);
  border-style: dashed;
}
.field.combo.is-locked input[data-combo-input]::placeholder { color: var(--muted); font-style: italic; }

.combo-pop {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 40;
  max-height: 320px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line-2);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  padding: 0.3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.combo-pop[hidden] { display: none; }

.combo-opt {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.45rem 0.65rem;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.3;
  /* allow long model strings to wrap rather than be truncated */
  white-space: normal;
  word-break: break-word;
  cursor: pointer;
  transition: background 120ms ease;
}
.combo-opt:hover     { background: var(--surface); }
.combo-opt.is-active { background: var(--surface-2); }
.combo-opt.is-current { font-weight: 600; }
.combo-opt.combo-any {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding-bottom: 0.45rem;
  margin-bottom: 0.25rem;
}
.combo-opt.combo-any.is-current { color: var(--text); }
.combo-empty {
  padding: 0.6rem 0.65rem;
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
}

/* 移植自 Atlas combo highlight — typed keyword 在下拉里高亮 */
.combo-opt mark {
  background: var(--consumer-soft);
  color: inherit;
  font-weight: 700;
  border-radius: 2px;
  padding: 0 1px;
}

/* Year-hint 卡片（Atlas year_hint 视觉） */
.cat-year-hint {
  background: var(--warn-soft);
  border: 1px solid var(--warn);
  border-radius: var(--r-md);
  padding: 1rem 1.1rem;
  margin: 0 0 1.25rem 0;
  color: var(--text);
}
.cat-year-hint .cyh-head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
}
.cat-year-hint .cyh-icon {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--warn);
  color: var(--bg);
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.8rem;
}
.cat-year-hint .cyh-body {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
  margin: 0;
}
.cat-year-hint .cyh-body strong { color: var(--text); }
   Applied only to product cells with a real photo. Pending = no watermark.
============================================================ */
.pc-photo { position: relative; overflow: hidden; }
.pd-main  { position: relative; overflow: hidden; }
.pd-thumbs button { position: relative; overflow: hidden; }

/* Clean PHOTO PENDING placeholder for the product-detail hero */
.pd-pending-label {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  background: var(--surface);
}

/* 产品图水印已烧进图片本身（PIL 满铺斜向 VACTIRO，裁不掉），原 CSS overlay 斜纹删除——CSS overlay 右键保存即丢、防不了盗 */

/* Filter-note: small explanation under photo / refType groups */
.filter-note {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  line-height: 1.5;
}

/* ============================================================
   CONVERSION WAVE 1 — catalog / RFQ / detail / forms
   纯文字 UI，无 icon；动画 120–180ms 且尊重 prefers-reduced-motion。
============================================================ */

/* Header RFQ indicator (Part 4) */
.vh-rfq {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 0.8rem;
  font-size: 0.8rem; font-weight: 600;
  color: var(--consumer-deep);
  border: 1.5px solid var(--consumer);
  border-radius: var(--r-md);
  transition: background 140ms, color 140ms;
}
.vh-rfq:hover { background: var(--consumer-soft); }
.vh-rfq[hidden] { display: none; }   /* class 选择器会盖过 [hidden] 的 UA display:none，需显式恢复 */
.vh-rfq-count {
  font-family: var(--mono); font-size: 0.72rem;
  min-width: 1.4em; text-align: center;
  padding: 0.05rem 0.35rem;
  background: var(--consumer); color: #fff;
  border-radius: 999px;
}

/* Product card — title link / details link / no empty gap (Part 3) */
.pc-title { color: var(--text); transition: color 140ms; }
a.pc-title:hover { color: var(--consumer); }
.pc-chips:empty { display: none; }
.pc-details-link {
  margin-top: 0.5rem; align-self: flex-start;
  font-size: 0.78rem; color: var(--muted);
  border-bottom: 1px solid var(--line-2);
  transition: color 140ms, border-color 140ms;
}
.pc-details-link:hover { color: var(--consumer); border-color: var(--consumer); }
.product-card .btn.is-in-rfq,
.pd-actions .btn.is-in-rfq {
  background: var(--ok-soft); color: var(--ok); border-color: var(--ok);
}

/* Product detail — Notes + What VACTIRO verifies (Part 10) */
.pd-notes {
  margin: 0.6rem 0 0; padding: 0.7rem 0.9rem;
  background: var(--warn-soft); border-radius: var(--r-md);
}
.pd-notes h6 {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--warn); margin-bottom: 0.3rem;
}
.pd-notes ul { list-style: none; display: flex; flex-direction: column; gap: 0.2rem; }
.pd-notes li { font-size: 0.9rem; font-weight: 500; }
.verify-block {
  margin: 1.2rem 0; padding: 1rem 1.1rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
}
.verify-block h6, .verify-block h3 {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem;
}
.verify-block ul { list-style: none; display: flex; flex-direction: column; gap: 0.35rem; }
.verify-block li { position: relative; padding-left: 1rem; font-size: 0.9rem; color: var(--text); }
.verify-block li::before { content: "—"; position: absolute; left: 0; color: var(--muted); }

/* Request context (Part 6) */
.req-context {
  margin-bottom: 1rem; padding: 0.9rem 1.1rem;
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--consumer); border-radius: var(--r-md);
}
.req-context h5 {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.4rem;
}
.req-context-row { display: flex; flex-direction: column; gap: 0.15rem; margin-bottom: 0.3rem; }
.req-context-row strong { font-size: 0.95rem; }
.req-context-row .mono { color: var(--muted); }
.req-context-ref { font-size: 0.78rem; color: var(--consumer-deep); margin-bottom: 0.4rem; }

/* Inline form error + returning buyer (Part 6/8) */
.form-error {
  margin: -0.2rem 0 0.4rem; padding: 0.5rem 0.7rem;
  font-size: 0.82rem; color: var(--bad);
  background: rgba(154,45,45,0.08); border-radius: var(--r-sm);
}
.returning-buyer {
  margin-top: 0.4rem; padding-top: 0.9rem;
  border-top: 1px dashed var(--line-2);
  display: flex; flex-direction: column; gap: 0.35rem;
}
.returning-buyer label { font-size: 0.85rem; font-weight: 500; }
.returning-buyer input {
  padding: 0.6rem 0.7rem; border: 1px solid var(--line-2);
  border-radius: var(--r-md); background: var(--surface);
}
.returning-ack { color: var(--ok); font-size: 0.78rem; }

/* RFQ selection on the Trade page (Part 7) */
.rfq-selected {
  margin-bottom: 0.4rem; padding: 0.9rem 1rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
}
.rfq-selected.is-empty { color: var(--muted); }
.rfq-selected.is-empty .mono { font-size: 0.78rem; }
.rfq-selected-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 0.6rem; }
.rfq-selected-head h5 { font-size: 0.9rem; font-weight: 600; }
.rfq-selected-count { color: var(--muted); }
.rfq-list { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.rfq-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 0.8rem;
  padding: 0.55rem 0.7rem; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-sm);
}
.rfq-item-main { display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.rfq-item-main strong { font-size: 0.88rem; }
.rfq-item-main .mono { font-size: 0.72rem; color: var(--muted); }
.rfq-remove {
  flex-shrink: 0; font-size: 0.78rem; color: var(--bad);
  border-bottom: 1px solid transparent; transition: border-color 140ms;
}
.rfq-remove:hover { border-color: var(--bad); }

/* Home catalog proof + photo preview (Part 9) */
.home-proof { padding: 2rem 0 3rem; }
.home-proof-line { font-size: 0.82rem; color: var(--muted); letter-spacing: 0.02em; margin-bottom: 1.2rem; }
.home-proof-sub { color: var(--muted); font-size: 0.9rem; margin: -0.3rem 0 1.2rem; }
.home-about-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 2.4rem; align-items: center; }
/* 首页 FAQ：折叠 accordion，回答转化前疑虑（研究:首页 FAQ 降摩擦） */
.home-faq { padding: 3.2rem 0; border-top: 1px solid var(--line); }
.home-faq-head { margin-bottom: 1.5rem; }
.home-faq-head .eyebrow { display: block; margin-bottom: 0.4rem; }
.home-faq-grid { display: grid; gap: 0.7rem; }
@media (min-width: 781px) { .home-faq-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem 1.5rem; } }
.hf-item { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); padding: 0.85rem 1.1rem; transition: border-color 0.15s; }
.hf-item[open] { border-color: var(--line-2); }
.hf-item summary { font-weight: 600; font-size: 0.9rem; color: var(--text); cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.hf-item summary::-webkit-details-marker { display: none; }
.hf-item summary::after { content: '+'; color: var(--consumer); font-size: 1.15rem; font-weight: 400; line-height: 1; flex-shrink: 0; }
.hf-item[open] summary::after { content: '\2212'; }
.hf-item p { margin: 0.65rem 0 0; font-size: 0.84rem; color: var(--muted); line-height: 1.55; }
.home-faq-more { display: inline-block; margin-top: 1.4rem; font-size: 0.88rem; }
.ha-links { display: grid; gap: 0.6rem; }
/* 纯文字导购行(插画全站只在 Three lines 主区出现一次,其余位置编号+文字) */
.cel.cel-text { flex-direction: row; align-items: center; gap: 0.8rem; padding: 0.95rem 1.05rem; }   /* .cel 基类 column 在文件靠后,必须双类压过 */
.cel.cel-text .cel-num { color: var(--consumer-deep); font-size: 0.7rem; letter-spacing: 0.12em; }
.cel.cel-text .cel-name { font-size: 0.92rem; }
.cel.cel-text .cel-go { position: static; margin-left: auto; opacity: 1; transform: none; }
@media (max-width: 880px) { .home-about-grid { grid-template-columns: 1fr; } .home-about-grid .ha-links { max-width: 420px; } }
.home-preview {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.8rem; margin-bottom: 1rem;
}
.home-preview-card { display: flex; flex-direction: column; gap: 0.25rem; transition: transform 140ms; }
.home-preview-card.is-hidden { display: none; }
.home-preview-card:hover { transform: translateY(-2px); }
.hpc-photo {
  display: block; aspect-ratio: 1/1; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden;
}
.hpc-photo img { width: 100%; height: 100%; object-fit: cover; }
.hpc-line { font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.hpc-title { font-size: 0.82rem; font-weight: 500; line-height: 1.3; }
.home-proof-cta { margin-top: 0.4rem; }

@media (max-width: 880px) {
  .home-preview { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .vh-rfq, .pc-title, .pc-details-link, .home-preview-card, .rfq-remove { transition: none; }
  .home-preview-card:hover { transform: none; }
}

/* ============================================================
   LEAD CAPTURE (Wave 5) — fallback actions + local receipts
============================================================ */
.fallback-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.fallback-actions .btn { flex: 0 0 auto; }
.success-card .btn-ghost { color: var(--bg); border-color: rgba(255,255,255,0.35); }
.success-card .btn-ghost:hover { border-color: rgba(255,255,255,0.65); background: rgba(255,255,255,0.08); }
.fallback-to { margin-top: 0.8rem; color: #d0c9bd; font-size: 0.78rem; }
.fallback-status { margin-top: 0.6rem; color: #bfe3cd; font-size: 0.82rem; }
.fallback-warn { margin-top: 0.8rem; padding: 0.5rem 0.7rem; background: rgba(176,122,31,0.22); border-radius: var(--r-sm); color: #f0d9a8; font-size: 0.8rem; }
.fallback-warn strong { color: #fff; }

.recent-requests {
  margin-top: 1.2rem; padding: 0.9rem 1rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md);
}
.recent-requests .rr-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 0.5rem; }
.recent-requests h5 { font-size: 0.9rem; font-weight: 600; }
.recent-clear { font-size: 0.74rem; color: var(--bad); border-bottom: 1px solid transparent; transition: border-color 140ms; }
.recent-clear:hover { border-color: var(--bad); }
.recent-requests ul { list-style: none; display: flex; flex-direction: column; gap: 0.35rem; }
.recent-requests li { display: flex; align-items: baseline; gap: 0.6rem; font-size: 0.8rem; flex-wrap: wrap; }
.recent-requests .rr-id { color: var(--consumer-deep); flex: 0 0 auto; }
.recent-requests .rr-sum { color: var(--text); flex: 1 1 auto; min-width: 0; }
.recent-requests .rr-status { color: var(--muted); font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; flex: 0 0 auto; }
.rr-note { margin-top: 0.5rem; color: var(--muted); font-size: 0.66rem; }
@media (prefers-reduced-motion: reduce) { .recent-clear { transition: none; } }

/* 移动端可用性修复（深度排查 Wave 11）：iOS 聚焦防整页缩放 + 触摸目标 ≥44px + 下拉收高不盖字段 */
@media (max-width: 880px) {
  .field input, .field select, .field textarea,
  .field.combo input, .sort-control select, .returning-buyer input,
  [data-hero-search], [data-cat-search] { font-size: 16px !important; }
  .pg-num, .pg-step { min-height: 44px; min-width: 44px; padding: 0.6rem 0.8rem; }
  .pc-actions { grid-template-columns: 1fr; }
  .pc-actions .btn { min-height: 44px; }
  .vh-burger { min-height: 44px; min-width: 44px; }
  .combo-pop { max-height: 50vh; }
}

/* skip-to-content（a11y：键盘用户跳过导航直达主内容）*/
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 1100; background: var(--dark); color: #fff; padding: 0.6rem 1rem; border-radius: 0 0 var(--r-sm) 0; }
.skip-link:focus { left: 0; }
#view:focus { outline: none; }

/* 产品页同类 related 横栏（内链 + 页面深度，呼应 Wave 10 索引目标）*/
.pd-related { margin-top: 0.5rem; }
.pd-related h2 { font-size: 1.15rem; font-weight: 600; margin-bottom: 1rem; }
.pd-related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.9rem; }
.pd-related-card { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: border-color 0.15s var(--ease-hover), transform 0.18s var(--ease-hover), box-shadow 0.18s var(--ease-hover); }
.pd-related-card:hover { border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.pd-related-card .prc-photo { aspect-ratio: 1/1; background: var(--surface); display: flex; align-items: center; justify-content: center; overflow: hidden; border-bottom: 1px solid var(--line); }
.pd-related-card .prc-photo img { width: 100%; height: 100%; object-fit: contain; padding: 0; box-sizing: border-box; }
.pd-related-card .prc-photo.pending { background-image: repeating-linear-gradient(135deg, rgba(232,98,26,0.045) 0 2px, transparent 2px 13px); }
.pd-related-card .prc-body { padding: 0.7rem 0.85rem 0.85rem; display: flex; flex-direction: column; gap: 0.25rem; }
.pd-related-card .prc-line { font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--consumer-deep); }
.pd-related-card .prc-title { font-size: 0.88rem; color: var(--text); line-height: 1.3; font-weight: 500; }
.pd-related-card .prc-meta { font-size: 0.7rem; color: var(--muted); }



/* ============================================================
   CART / ORDER CONFIRMATION REQUEST
============================================================ */
.vh-cart {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.45rem 0.7rem; border: 1px solid var(--line-2); border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; color: var(--dark); background: var(--surface);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.vh-cart:hover, .vh-cart.has-items, .vh-cart.is-active { background: var(--consumer-soft); border-color: var(--consumer); transform: translateY(-1px); }
.vh-cart-count {
  display: inline-flex; min-width: 1.35rem; height: 1.35rem; align-items: center; justify-content: center;
  border-radius: 999px; background: var(--consumer); color: var(--dark); font-family: var(--mono); font-size: 0.7rem;
}
.vh-cart-count[hidden] { display: none; }   /* 空车藏徽章：author display 会盖 UA [hidden]，必须显式补 */
.cart-page { padding: 3rem 0 4rem; }
.cart-hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.35rem; }
.cart-hero h1 { font-size: clamp(1.8rem, 3.6vw, 2.4rem); font-weight: 600; letter-spacing: -0.01em; }   /* 与 formpage/cat-hero 同刻度，全站 h1 一致 */
.cart-hero p { color: var(--muted); max-width: 58ch; margin-top: 0.5rem; }   /* 与 formpage .lede 同距 */
.cart-summary-inline {
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px;
  padding: 0.62rem 0.85rem; box-shadow: var(--shadow-sm); display: inline-flex; align-items: center; gap: 0.55rem;
}
.cart-summary-inline .mono { color: var(--consumer-deep); font-size: 0.66rem; letter-spacing: 0.1em; }
.cart-summary-inline strong { font-size: 0.92rem; white-space: nowrap; }
.cart-grid { display: grid; grid-template-columns: minmax(0, 0.92fr) minmax(430px, 0.52fr); gap: 1.1rem; align-items: start; }
.cart-grid.is-empty { grid-template-columns: minmax(0, 1fr) minmax(390px, 0.44fr); }
.cart-empty, .cart-help-card, .cart-line {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-sm);
}
.cart-empty {
  padding: clamp(1.4rem, 3vw, 2.2rem); min-height: 280px; display: flex; flex-direction: column;
  align-items: flex-start; justify-content: center; gap: 0.9rem;
}
.cart-empty .mono { color: var(--consumer-deep); font-size: 0.72rem; letter-spacing: 0.12em; }
.cart-empty h2 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); font-weight: 600; letter-spacing: -0.025em; max-width: 22ch; }
.cart-empty p { color: var(--muted); max-width: 56ch; }
.cart-empty-actions, .cart-help-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; }
/* 空车右卡：与左卡等高、底部对齐（步骤区弹性吸收高度差，按钮钉底）。短页不需要 sticky */
.cart-help-card { padding: 1.15rem; display: flex; flex-direction: column; }
.cart-help-card .cart-steps { flex: 1; }
.cart-grid.is-empty { align-items: stretch; }
.cart-step-label { color: var(--consumer-deep); font-size: 0.66rem; letter-spacing: 0.1em; display: block; margin-bottom: 0.45rem; }
.cart-help-card h2, .cart-confirm h2 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 0.45rem; }
.cart-steps { list-style: none; display: grid; gap: 0.75rem; margin: 1rem 0 1.05rem; counter-reset: cartStep; }
.cart-steps li { counter-increment: cartStep; display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: 0.65rem; align-items: start; }
.cart-steps li::before {
  content: counter(cartStep); width: 2rem; height: 2rem; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--consumer-soft); color: var(--dark); border: 1px solid rgba(232,98,26,0.36); font-family: var(--mono); font-size: 0.72rem; grid-row: 1 / span 2;
}
.cart-steps strong { display: block; grid-column: 2; font-size: 0.88rem; margin-bottom: 0.15rem; }
.cart-steps span { display: block; grid-column: 2; color: var(--muted); font-size: 0.82rem; line-height: 1.45; }
.cart-list { display: flex; flex-direction: column; gap: 0.75rem; }
.cart-line {
  display: grid; grid-template-columns: 118px minmax(0, 1fr); overflow: hidden;
  transition: transform 0.18s var(--ease-out), box-shadow 0.18s var(--ease-out), border-color 0.18s var(--ease-out);
}
.cart-line:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--dark); }
.cart-line-photo { background: var(--surface); border-right: 1px solid var(--line); height: 118px; min-height: 118px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.cart-line-photo img { width: 100%; height: 100%; object-fit: cover; padding: 0; box-sizing: border-box; }
.cart-line-photo.pending { background-image: repeating-linear-gradient(135deg, rgba(232,98,26,0.045) 0 2px, transparent 2px 13px); color: var(--muted); font-size: 0.7rem; }
.cart-line-main { padding: 0.9rem 1rem; display: flex; flex-direction: column; gap: 0.72rem; }
.cart-line-head { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; }
.cart-line-kind { display: block; color: var(--consumer-deep); font-size: 0.66rem; letter-spacing: 0.1em; margin-bottom: 0.25rem; }
.cart-line-title { display: block; font-size: 1.02rem; font-weight: 600; line-height: 1.25; }
.cart-line-meta { display: flex; flex-wrap: wrap; gap: 0.42rem; color: var(--muted); font-size: 0.78rem; }
.cart-line-meta span { border: 1px solid var(--line); border-radius: 999px; padding: 0.25rem 0.5rem; background: var(--bg); }
.cart-remove {
  color: var(--bad); font-size: 0.76rem; border: 1px solid rgba(180,44,44,0.26); border-radius: 999px;
  padding: 0.28rem 0.55rem; background: transparent; flex-shrink: 0;
}
.cart-remove:hover { background: rgba(180,44,44,0.08); }
.cart-line-controls { display: grid; grid-template-columns: 150px minmax(200px, 0.78fr); gap: 0.75rem; align-items: end; }
.cart-qty, .cart-note { display: flex; flex-direction: column; gap: 0.3rem; }
.cart-qty .mono, .cart-note .mono { color: var(--muted); font-size: 0.66rem; letter-spacing: 0.08em; }
.cart-qty { display: grid; grid-template-columns: 38px 56px 38px; align-items: center; }
.cart-qty .mono { grid-column: 1 / -1; }
.cart-qty button, .cart-qty input, .cart-note input { border: 1px solid var(--line-2); background: var(--surface); min-height: 40px; }
.cart-qty button { border-radius: var(--r-sm); font-weight: 700; cursor: pointer; }
.cart-qty input { text-align: center; border-radius: var(--r-sm); }
.cart-note input { width: 100%; border-radius: var(--r-md); padding: 0.58rem 0.65rem; }
.cart-list-actions { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-top: 1rem; }
.cart-confirm { max-width: 760px; margin-top: 2rem; }
.cart-confirm > p { color: var(--muted); font-size: 0.92rem; margin-bottom: 0.4rem; max-width: 56ch; }
.cart-form { margin-top: 0; box-shadow: none; }
.cart-form .field-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0.65rem; }
.cart-form input, .cart-form textarea { min-width: 0; }
.product-card .btn.is-in-cart, .pd-actions .btn.is-in-cart { background: var(--dark); color: var(--bg); }
@media (max-width: 1120px) {
  .cart-grid, .cart-grid.is-empty { grid-template-columns: 1fr; }
  .cart-aside, .cart-help-card { position: static; }
}
@media (max-width: 640px) {
  .cart-page { padding-top: 2rem; }
  .cart-hero { align-items: stretch; flex-direction: column; }
  .cart-summary-inline { border-radius: var(--r-md); justify-content: space-between; }
  .cart-line { grid-template-columns: 1fr; }
  .cart-line-photo { height: 180px; min-height: 180px; border-right: 0; border-bottom: 1px solid var(--line); }
  .cart-line-head { flex-direction: column; }
  .cart-line-controls, .cart-form .field-row { grid-template-columns: 1fr; }
  .cart-qty { max-width: 170px; }
}
@media (prefers-reduced-motion: reduce) {
  .vh-cart, .cart-line { transition: none; }
  .cart-line:hover, .vh-cart:hover { transform: none; }
}

/* ============================================================
   CART 重设计 — 步骤条 / 黑色 Order Summary 拼接面板 / 产品线导购
   ============================================================ */
/* 步骤条：消费者熟悉的"结账进度"心智，同时诚实标注流程终点是邮件确认 */
.cart-progress {
  list-style: none; display: flex; align-items: center; gap: 0;
  margin: 0 0 1.6rem; padding: 0;
}
.cart-progress li { display: flex; align-items: center; gap: 0.5rem; }
.cart-progress li:not(:last-child)::after {
  content: ''; width: clamp(28px, 6vw, 72px); height: 1px;
  background: var(--line-2); margin: 0 0.75rem;
}
.cart-progress li.is-done:not(:last-child)::after { background: var(--consumer); }
.cp-dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.7rem; height: 1.7rem; border-radius: 999px;
  border: 1.5px solid var(--line-2); background: var(--surface);
  font-family: var(--mono); font-size: 0.72rem; color: var(--muted);
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.cart-progress .is-current .cp-dot { background: var(--consumer); border-color: var(--consumer); color: var(--dark); font-weight: 700; }
.cart-progress .is-done .cp-dot { background: var(--dark); border-color: var(--dark); color: var(--bg); }
.cp-label { font-size: 0.78rem; font-weight: 600; color: var(--muted); letter-spacing: 0.01em; white-space: nowrap; }
.cart-progress .is-current .cp-label, .cart-progress .is-done .cp-label { color: var(--dark); }
@media (max-width: 560px) {
  /* 窄屏只展开当前步标签，其余步收成圆点 —— 一行放得下且重点突出 */
  .cp-label { font-size: 0.7rem; }
  .cart-progress li:not(.is-current) .cp-label { display: none; }
  .cart-progress li:not(:last-child)::after { width: 18px; margin: 0 0.4rem; }
  .cart-line-photo { height: 150px; min-height: 150px; }
}

/* Order Summary：独立黑卡（右栏吸顶跟随），与 trade 黑卡同语言，米白页上最跳 */
.cart-aside { position: sticky; top: calc(var(--hdr) + 1rem); }
.cart-review-summary {
  background: var(--trade-bg); color: var(--bg);
  border-radius: var(--r-lg); box-shadow: var(--shadow-sm);
  padding: 1.15rem 1.3rem 1.2rem;
  display: flex; flex-direction: column; gap: 0.55rem;
}
.crs-cta { width: 100%; margin-top: 0.75rem; }
.cart-review-summary > .mono { color: var(--consumer-deep); font-size: 0.66rem; letter-spacing: 0.14em; margin-bottom: 0.15rem; }
.crs-row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; font-size: 0.85rem; }
.crs-row span { color: var(--trade-bg-ink); }
.crs-row strong { font-weight: 600; text-align: right; }
.crs-row .crs-accent { color: var(--consumer-deep); }
.crs-row + .crs-row { border-top: 1px solid rgba(245,240,232,0.12); padding-top: 0.55rem; }

/* 空购物车产品线导购：把"空"变成入口（cutaway 工业插画 + 箭头滑入） */
.cart-empty-lines { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; margin-top: 1.1rem; }
.cel {
  display: flex; flex-direction: column; gap: 0.45rem;
  border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface);
  padding: 0.7rem; position: relative;
  transition: border-color 0.18s ease, transform 0.2s var(--ease-hover), box-shadow 0.2s var(--ease-hover);
}
.cel:hover { border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.cel-art { aspect-ratio: 16/10; border-radius: var(--r-sm); overflow: hidden; background: var(--surface); border: 1px solid var(--line); display: flex; }
.cel-art img { width: 100%; height: 100%; object-fit: contain; }
.cel-name { font-size: 0.82rem; font-weight: 600; }
.cel-go { position: absolute; right: 0.7rem; bottom: 0.6rem; color: var(--consumer-deep); font-weight: 700; opacity: 0; transform: translateX(-4px); transition: opacity 0.18s ease, transform 0.18s ease; }
.cel:hover .cel-go { opacity: 1; transform: none; }
@media (max-width: 640px) { .cart-empty-lines { grid-template-columns: 1fr; } .cel { flex-direction: row; align-items: center; } .cel-art { width: 96px; aspect-ratio: 16/10; flex-shrink: 0; } }

/* cart 行入场：逐行上浮（html.anim 门控；--i 由模板注入）。
   限定 .route-enter：只在切页入场播一次，qty/note 等页内刷新(keepScroll)不重播 */
html.anim .route-enter .cart-line { animation: cartLineIn 0.45s var(--ease-out) both; animation-delay: calc(var(--i, 0) * 70ms); }
@keyframes cartLineIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* ============================================================
   全站微动效打磨（全部 html.anim 门控 → reduced-motion / 无 JS 自动豁免）
   ============================================================ */
/* 1. 路由入场：切页轻淡入（页内刷新不重播）。
   ⚠️ 只动 opacity —— keyframes 含 transform 时 fill:both 会把 transform 固化成 identity matrix，
   给 .route 造出永久 containing block，页内所有 position:fixed（如吸底加购栏）全部失锚。 */
html.anim .route.route-enter { animation: routeIn 0.32s var(--ease-out) both; }
@keyframes routeIn { from { opacity: 0; } to { opacity: 1; } }

/* 2. header 滚动升起 */
.vh { transition: box-shadow 0.25s ease, background 0.25s ease; }
.vh.is-scrolled { box-shadow: 0 10px 28px rgba(26,26,26,0.10); background: rgba(245,240,232,0.97); }

/* 3. 购物车徽章弹跳（加购即时反馈） */
.vh-cart-count.pop { animation: badgePop 0.4s var(--ease-out); }
@keyframes badgePop { 0% { transform: scale(1); } 40% { transform: scale(1.45); } 100% { transform: scale(1); } }

/* 4. 首页网格 stagger：随 section reveal 子项逐个上浮 */
html.anim [data-reveal] :is(.line-card, .home-preview-card, .path-card, .metric) {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric) { opacity: 1; transform: none; }
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric):nth-child(2) { transition-delay: 70ms; }
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric):nth-child(3) { transition-delay: 140ms; }
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric):nth-child(4) { transition-delay: 210ms; }
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric):nth-child(5) { transition-delay: 280ms; }
html.anim [data-reveal].in :is(.line-card, .home-preview-card, .path-card, .metric):nth-child(6) { transition-delay: 350ms; }

/* 5. 产品图 hover 微缩放（卡片照片有"活"感） */
html.anim :is(.pc-photo, .prc-photo, .hpc-photo, .cart-line-photo, .line-glyph) img { transition: transform 0.5s var(--ease-out); }
html.anim :is(.product-card:hover .pc-photo, .pd-related-card:hover .prc-photo, .home-preview-card:hover .hpc-photo, .cart-line:hover .cart-line-photo, .line-card:hover .line-glyph) img { transform: scale(1.05); }

/* 6. 按钮按压反馈 */
.btn:active { transform: translateY(0) scale(0.97); }

/* 7. 品牌细节：复选框橙、选区橙、chip hover */
input[type="checkbox"], input[type="radio"] { accent-color: var(--consumer); }
::selection { background: var(--consumer-soft); }
.chip { transition: border-color 0.15s ease, background 0.15s ease; }
.chip:hover { border-color: var(--consumer); }

/* 8. footer 精修：橙色发丝顶线 + 链接滑入 hover + slogan 点橙 */
.vf { position: relative; }
.vf::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--consumer) 0%, rgba(232,98,26,0.25) 38%, transparent 70%);
}
.vf-slogan { color: var(--consumer); }
.vf-trust { font-size: 0.68rem; letter-spacing: 0.06em; color: #d0c9bd; margin-top: 0.5rem; }
.vf-col a { transition: color 0.15s ease, padding-left 0.18s var(--ease-hover); }
.vf-col a:hover { padding-left: 5px; }

/* 9. 锚点滚动让位吸顶 header + 平滑滚动（reduced-motion 自动豁免） */
[id] { scroll-margin-top: calc(var(--hdr) + 1rem); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

/* 9b. 目录侧栏桌面吸顶：翻页/长列表时筛选始终在手边 */
@media (min-width: 881px) {
  .cat-filters { position: sticky; top: calc(var(--hdr) + 1rem); max-height: calc(100vh - var(--hdr) - 2rem); overflow-y: auto; }
}

/* 10. hero 信任条：5 条真实主张，橙点分隔（全部可证：质保/DOA/美国仓已上线，brand-new/fitment 是经营模式） */
/* hero 三保证 badge 横条：icon + 短语，信任徽章首屏可见（替代旧 hero-trust 文字列表） */
.hero-badges { display: grid; grid-template-columns: 1fr; gap: 0.85rem; margin-top: 1.7rem; }
.hero-badge { display: flex; align-items: center; gap: 0.65rem; }
.hero-badge svg { color: var(--consumer); flex-shrink: 0; }
.hero-badge strong { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text); line-height: 1.25; }
.hero-badge span { display: block; font-size: 0.75rem; color: var(--muted); line-height: 1.3; }
@media (min-width: 981px) { .hero-badges { grid-template-columns: repeat(3, auto); column-gap: 1.7rem; } }
.btn-lg { padding: 0.95rem 1.85rem; font-size: 1rem; }
/* 切换 By vehicle / By OE 时卡片高度差 65px 会让 hero 背景重排——两模式区域锁同高 */
[data-search] .search-fields { min-height: 0; }   /* 宽屏自然高度——字段单行,根治下方死白 */
@media (max-width: 880px) {
  /* 窄屏 By vehicle 是双行(实测 135px),锁 8.75rem 让 By OE 单输入框撑齐——防 tab 切换时 hero 高度变化导致背景图重定位跳动 */
  [data-search] .search-fields { min-height: 8.75rem; }
  [data-search] .search-fields[data-fields="ref"] { align-content: center; }
}

/* 10b. 产品相册控制件：左右箭头 / 计数 / 放大镜（桌面 hover 显箭头，触屏常显） */
.pd-gallery .pd-main { position: relative; }
.pd-gallery .pd-main img.is-fading { opacity: 0; transition: opacity 0.16s ease; }
.pd-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 2.5rem; height: 2.5rem; border-radius: 50%;
  background: rgba(255,255,255,0.92); border: 1px solid var(--line-2); color: var(--dark);
  font-size: 1.45rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm);
  opacity: 0; transition: opacity 0.18s ease, background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.pd-nav.prev { left: 0.7rem; }
.pd-nav.next { right: 0.7rem; }
.pd-gallery .pd-main:hover .pd-nav, .pd-nav:focus-visible { opacity: 1; }
.pd-nav:hover { background: var(--surface); border-color: var(--consumer); transform: translateY(-50%) scale(1.06); }
.pd-counter {
  position: absolute; right: 0.8rem; bottom: 0.7rem; z-index: 3;
  padding: 0.22rem 0.55rem; border-radius: 999px;
  background: rgba(26,26,26,0.72); color: var(--bg); font-size: 0.68rem; letter-spacing: 0.06em;
  pointer-events: none;
}
.pd-zoom {
  position: absolute; top: 0.7rem; right: 0.7rem; z-index: 3;
  width: 2.2rem; height: 2.2rem; border-radius: 50%;
  background: rgba(255,255,255,0.92); border: 1px solid var(--line-2); color: var(--dark);
  display: flex; align-items: center; justify-content: center; cursor: zoom-in;
  box-shadow: var(--shadow-sm); transition: background 0.15s ease, border-color 0.15s ease;
}
.pd-zoom:hover { border-color: var(--consumer); }
@media (hover: none), (max-width: 880px) { .pd-nav { opacity: 1; } }

/* 灯箱翻页 + 计数 */
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 3rem; height: 3rem; border-radius: 50%;
  background: rgba(255,255,255,0.14); color: #fff; border: none;
  font-size: 1.9rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s ease;
}
.lb-nav.prev { left: 1.2rem; }
.lb-nav.next { right: 1.2rem; }
.lb-nav:hover { background: rgba(255,255,255,0.26); }
.lb-counter {
  position: absolute; bottom: 1.3rem; left: 50%; transform: translateX(-50%);
  padding: 0.3rem 0.75rem; border-radius: 999px;
  background: rgba(255,255,255,0.14); color: #fff; font-size: 0.74rem; letter-spacing: 0.08em;
}
@media (max-width: 560px) { .lb-nav.prev { left: 0.5rem; } .lb-nav.next { right: 0.5rem; } }

/* 目录移动端 Filters 折叠按钮（桌面隐藏） */
.cat-filter-toggle {
  display: none; align-items: center; gap: 0.45rem;
  padding: 0.55rem 0.9rem; border-radius: var(--r-md);
  border: 1px solid var(--line-2); background: var(--surface); color: var(--dark);
  font-size: 0.82rem; font-weight: 600; cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.cat-filter-toggle:hover, .cat-filter-toggle[aria-expanded="true"] { border-color: var(--consumer); background: var(--consumer-soft); }
@media (max-width: 880px) { .cat-filter-toggle { display: inline-flex; } }   /* 本规则在文件靠后，必须自带媒体覆盖（880 块里的同名规则会被上面的基础 none 盖掉） */

/* ============================================================
   ABOUT 页重排：卡片网格 + 编号步骤 + honest-box + 黑色收尾带
   （复用既有组件语言：.cart-steps / .honest-box / eyebrow / section-title）
   ============================================================ */
.about-page { padding-top: 2.4rem; padding-bottom: 4.5rem; }   /* 勿用简写:会抹掉 .container 左右 padding */
/* 头部 2 栏:左文案 + 右 cutaway 视觉锚(整页唯一图像位,黑底工业插画与首页三线卡同语言) */
.about-head { display: grid; grid-template-columns: minmax(0,1fr) 360px; gap: 2rem; align-items: center; }
.about-head-art { aspect-ratio: 16/10; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-md); background: #0E0D0C; }
.about-head-art img { width: 100%; height: 100%; object-fit: cover; }
html.anim .about-head-art img.is-fading { opacity: 0; transition: opacity 0.5s ease; }
html.anim .about-head-art img.is-fading.is-loaded { opacity: 1; }
@media (max-width: 880px) { .about-head { grid-template-columns: 1fr; gap: 1.1rem; } .about-head-art { aspect-ratio: 16/9; } }   /* 头图是主视觉,移动端堆叠展示而非藏 */
/* 移动端:三线区头改纵排(375 下标题与链接互挤换行) */
@media (max-width: 880px) {
  .lines-head { flex-direction: column; align-items: flex-start; gap: 0.35rem; }
  /* 横滑行自身不得撑大网格列:min-width:0 + 列 minmax(0,1fr),否则主图被顶出视口、右箭头消失 */
  .pd-top { grid-template-columns: minmax(0, 1fr); }
  .pd-gallery, .pd-main { min-width: 0; max-width: 100%; }
  .pd-thumbs { display: flex; overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 0.25rem; min-width: 0; max-width: 100%; }
  .pd-thumbs button { flex: 0 0 76px; }
}
/* 移动端 hero 轻量图(1200w ≈130KB vs 桌面 482KB):LCP 直降 */
@media (max-width: 880px) {
  .hero {
    /* 渐变更厚:正文不再压在炽橙光带上发虚;光带主秀场让给下半区/CTA 之下 */
    background:
      linear-gradient(115deg, var(--bg) 0%, var(--bg) 46%, rgba(245,240,232,0.9) 62%, rgba(245,240,232,0.35) 82%, rgba(245,240,232,0) 100%),
      url('assets/brand/hero-bg-m.jpg?v=b14abc39') 55% center / cover no-repeat,
      var(--bg);
  }
}
/* 404 页:米白调、简洁居中(和全站统一);大号橙 404 作视觉锚 */
.not-found-page { min-height: calc(100vh - 4.75rem); display: flex; align-items: center; justify-content: center; text-align: center; padding: 2rem 1.5rem; }
.nf-inner { max-width: 560px; }
.nf-code { font-size: clamp(5.5rem, 15vw, 9.5rem); font-weight: 700; line-height: 0.95; color: var(--consumer); letter-spacing: -0.04em; }
.not-found-page .crumb { justify-content: center; margin-top: 0.4rem; }
.not-found-page h1 { font-size: clamp(1.8rem, 3.6vw, 2.4rem); font-weight: 600; letter-spacing: -0.01em; margin: 0.3rem 0 0; }
.not-found-page .lede { color: var(--muted); margin: 0.8rem auto 0; max-width: 30rem; font-size: 1.05rem; line-height: 1.6; }
.nf-cta { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; margin-top: 1.9rem; }
@media (max-width: 880px) { .not-found-page { min-height: calc(100vh - 4.25rem); } }
.about-page > .lede { color: var(--muted); margin-top: 0.5rem; max-width: 56ch; }
.about-section { margin-top: 2.6rem; }
.about-section .section-title { margin: 0.2rem 0 1rem; }
.about-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9rem; }
.about-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 1.2rem 1.25rem; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 0.45rem;
  transition: border-color 0.18s ease, transform 0.2s var(--ease-hover), box-shadow 0.2s var(--ease-hover);
}
.about-card:hover { border-color: var(--dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.about-card .ac-num { color: var(--consumer-deep); font-size: 0.7rem; letter-spacing: 0.12em; }
.about-card strong { font-size: 1.02rem; font-weight: 600; }
.about-card p { color: var(--muted); font-size: 0.9rem; line-height: 1.55; }
.about-note { color: var(--muted); font-size: 0.9rem; margin-top: 1rem; max-width: 70ch; }
.ac-more { color: var(--text); font-size: 0.9rem; line-height: 1.55; margin-top: 0.6rem; padding-top: 0.7rem; border-top: 1px dashed var(--line-2); }
.about-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; align-items: stretch; }
.about-2col .section-title { font-size: 1.25rem; margin-bottom: 0.55rem; }
.ac-tall .cart-steps { margin: 0.4rem 0 0; }
.honest-list { margin-top: 0.4rem; padding-left: 1.05rem; display: grid; gap: 0.3rem; }
.honest-list li { color: var(--muted); font-size: 0.85rem; line-height: 1.5; list-style: disc; }
.faq-list { max-width: 76ch; }
/* 宽屏 FAQ 双栏铺满,消右侧虚空;break-inside 防答案被拦腰截断 */
@media (min-width: 981px) {
  .faq-list { max-width: none; columns: 2; column-gap: 2.6rem; }
  .faq-row { break-inside: avoid; }
}
.faq-row { padding: 0.95rem 0; border-bottom: 1px solid var(--line); }
.faq-row h3 { font-size: 0.98rem; font-weight: 600; margin-bottom: 0.3rem; }
.faq-row p { color: var(--muted); font-size: 0.9rem; line-height: 1.6; max-width: 70ch; }
.about-cta {
  background: var(--trade-bg); color: var(--bg); border-radius: var(--r-lg);
  padding: 1.6rem 1.7rem; display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; flex-wrap: wrap;
}
.about-cta .mono { color: var(--consumer-deep); font-size: 0.66rem; letter-spacing: 0.14em; }
.about-cta h2 { font-size: 1.45rem; font-weight: 600; letter-spacing: -0.02em; margin: 0.3rem 0 0.35rem; }
.about-cta p { color: var(--trade-bg-ink); font-size: 0.92rem; max-width: 52ch; }
.about-cta-actions { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.btn-ghost-inv { border-color: rgba(245,240,232,0.45); color: var(--bg); background: transparent; }
.btn-ghost-inv:hover { border-color: var(--bg); background: rgba(245,240,232,0.08); transform: translateY(-1px); }
@media (max-width: 880px) {
  .about-grid3, .about-2col { grid-template-columns: 1fr; }
  .about-cta { flex-direction: column; align-items: flex-start; }
}

/* 回顶按钮：滚过一屏出现；移动端避开吸底加购栏 */
.back-top {
  position: fixed; right: 1.3rem; bottom: 1.3rem; z-index: 58;
  width: 2.8rem; height: 2.8rem; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--line-2); color: var(--dark);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: border-color 0.15s ease, transform 0.18s var(--ease-hover), box-shadow 0.18s ease;
}
.back-top:hover { border-color: var(--consumer); transform: translateY(-2px); }
.back-top[hidden] { display: none; }
@media (max-width: 880px) { .back-top { bottom: 5.6rem; right: 1rem; } }

/* 11. 移动端吸底加购栏：CTA 滚出后浮出；iOS 安全区；仅窄屏启用 */
.pd-sticky-atc {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; align-items: center; gap: 0.8rem;
  padding: 0.65rem 1rem calc(0.65rem + env(safe-area-inset-bottom));
  background: var(--surface); border-top: 1px solid var(--line);
  box-shadow: 0 -8px 24px rgba(26,26,26,0.10);
}
.pd-sticky-atc .psa-title { flex: 1; min-width: 0; font-size: 0.82rem; font-weight: 600; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pd-sticky-atc .btn { flex-shrink: 0; }
@media (max-width: 880px) {
  .pd-sticky-atc:not([hidden]) { display: flex; }
  html.anim .pd-sticky-atc:not([hidden]) { animation: stickyAtcIn 0.28s var(--ease-out); }
}
@keyframes stickyAtcIn { from { transform: translateY(100%); } to { transform: none; } }