/* ============================================================
 *  Lumora Store — 样式
 *  想换配色只改下面 :root 里的变量即可
 * ============================================================ */
:root {
  --ink: #10151c;
  --ink-2: #333c48;
  --muted: #6d7783;
  --line: #e5e8ee;
  --bg: #ffffff;
  --surface: #f6f7f9;
  --surface-2: #eef1f5;
  --btn: #10151c;
  --btn-hover: #2a3340;
  --accent: #e8590c;
  --green: #0f7b4f;
  --red: #c0392b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(16, 21, 28, .06), 0 12px 28px -18px rgba(16, 21, 28, .35);
  --shadow-lg: 0 24px 60px -24px rgba(16, 21, 28, .35);
  --wrap: 1240px;
  --font: "Inter", "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 15px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.2; letter-spacing: -.015em; }
h1 { font-size: clamp(1.9rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
.text-green { color: var(--green); }
.hide-sm { display: inline-flex; }
.link { color: var(--accent); font-weight: 600; }

/* ---------------- 公告条 ---------------- */
.announce {
  background: var(--ink); color: #fff; font-size: .8rem; letter-spacing: .04em;
  overflow: hidden; white-space: nowrap; padding: 7px 0;
}
.announce-track { display: inline-flex; gap: 60px; animation: marquee 28s linear infinite; }
.announce-track span::before { content: ""; margin-right: 10px; color: var(--accent); }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------------- 页头 ---------------- */
.site-header { position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header-main { display: flex; align-items: center; gap: 18px; padding: 14px 20px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px; background: var(--ink); color: #fff;
  display: grid; place-items: center; font-weight: 800; letter-spacing: -.02em;
}
.brand-text { font-weight: 800; font-size: 1.06rem; display: flex; flex-direction: column; line-height: 1.1; }
.brand-text small { font-weight: 500; font-size: .68rem; color: var(--muted); letter-spacing: .01em; }
.search { flex: 1; display: flex; gap: 8px; max-width: 560px; }
.search input {
  flex: 1; padding: 11px 14px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--surface); outline: none; transition: .15s;
}
.search input:focus { border-color: var(--ink); background: #fff; }
.header-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.currency { display: flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--muted); }
.currency select { border: 1px solid var(--line); border-radius: 999px; padding: 6px 8px; background: #fff; }
.icon-link { font-size: .85rem; color: var(--ink-2); }
.cart-btn {
  position: relative; border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 9px 14px; cursor: pointer; font-size: 1rem;
}
.cart-btn:hover { border-color: var(--ink); }
.cart-badge {
  position: absolute; top: -6px; right: -6px; background: var(--surface-2); color: var(--ink);
  border-radius: 999px; font-size: .7rem; font-weight: 700; padding: 1px 6px; border: 1px solid var(--line);
}
.cart-badge.has { background: var(--accent); color: #fff; border-color: var(--accent); }
.burger { display: none; background: none; border: 0; font-size: 1.3rem; cursor: pointer; }

.cat-nav { border-top: 1px solid var(--line); }
.cat-nav ul { display: flex; gap: 22px; overflow-x: auto; padding: 10px 0; font-size: .88rem; }
.cat-nav a { color: var(--ink-2); white-space: nowrap; padding-bottom: 2px; border-bottom: 2px solid transparent; }
.cat-nav a:hover { color: var(--ink); border-color: var(--accent); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: 999px; padding: 11px 20px;
  cursor: pointer; font-weight: 600; font-size: .9rem; transition: .15s; text-align: center;
}
.btn-primary { background: var(--btn); color: #fff; }
.btn-primary:hover { background: var(--btn-hover); color: #fff; }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #cf4d08; color: #fff; }
.btn-block { width: 100%; }
.btn-lg { padding: 14px 26px; font-size: .98rem; }
.btn-sm { padding: 7px 14px; font-size: .82rem; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------------- 通用区块 ---------------- */
.section { padding: 56px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.section-head p { margin: 4px 0 0; color: var(--muted); }
.eyebrow { text-transform: uppercase; letter-spacing: .16em; font-size: .72rem; font-weight: 700; color: var(--accent); }

/* ---------------- Hero ---------------- */
.hero { background: linear-gradient(180deg, var(--surface) 0%, #fff 100%); border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; padding: 64px 20px; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
.hero p.lead { font-size: 1.06rem; color: var(--ink-2); max-width: 46ch; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.hero-points { display: flex; gap: 22px; flex-wrap: wrap; margin-top: 26px; font-size: .85rem; color: var(--ink-2); }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.hero-visual {
  border-radius: 24px; background: radial-gradient(120% 120% at 20% 10%, #dfe6f3 0%, #f7f8fb 45%, #eef1f5 100%);
  padding: 26px; box-shadow: var(--shadow-lg);
}
.hero-visual img { border-radius: 16px; mix-blend-mode: multiply; }
.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 18px; text-align: center; }
.hero-stats div { background: #fff; border-radius: var(--radius-sm); padding: 12px 6px; border: 1px solid var(--line); }
.hero-stats strong { display: block; font-size: 1.05rem; }
.hero-stats span { font-size: .74rem; color: var(--muted); }

/* ---------------- 分类 ---------------- */
.cat-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.cat-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 14px; text-align: center;
  background: #fff; transition: .18s;
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d7dbe3; color: var(--ink); }
.cat-icon { font-size: 1.7rem; display: block; margin-bottom: 8px; }
.cat-card b { display: block; font-size: .92rem; }
.cat-card span.muted { font-size: .74rem; }

/* ---------------- 商品网格 ---------------- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden;
  display: flex; flex-direction: column; transition: .18s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #d7dbe3; }
.card-media { position: relative; aspect-ratio: 1/1; background: var(--surface); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: .35s; }
.card:hover .card-media img { transform: scale(1.04); }
.badge {
  position: absolute; top: 12px; left: 12px; background: var(--ink); color: #fff;
  font-size: .7rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; letter-spacing: .02em;
}
.badge-sale { left: auto; right: 12px; background: var(--accent); }
.card-body { padding: 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-cat { font-size: .7rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.card-title { font-size: .98rem; margin: 0; }
.card-desc { font-size: .84rem; color: var(--muted); margin: 0; }
.card-meta { font-size: .8rem; display: flex; align-items: center; gap: 6px; }
.stars { color: #f0a020; letter-spacing: 1px; }
.price-row { display: flex; align-items: baseline; gap: 8px; margin-top: auto; }
.price { font-weight: 800; font-size: 1.1rem; }
.price-was { color: var(--muted); font-size: .85rem; }
.card-actions { display: flex; gap: 8px; margin-top: 4px; }
.card-actions .btn { flex: 1; padding: 9px 12px; font-size: .84rem; }

/* ---------------- 保障条 ---------------- */
.trust { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 26px 0; }
.trust-item { display: flex; gap: 12px; align-items: flex-start; }
.trust-item span[aria-hidden] { font-size: 1.4rem; }
.trust-item b { display: block; font-size: .9rem; }
.trust-item small { color: var(--muted); font-size: .78rem; }

/* ---------------- 店铺页 ---------------- */
.shop-layout { display: grid; grid-template-columns: 250px 1fr; gap: 32px; align-items: start; }
.filters { position: sticky; top: 130px; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.filter-group { padding: 14px 0; border-bottom: 1px solid var(--line); }
.filter-group:last-child { border-bottom: 0; }
.filter-group h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.filter-group label { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: .88rem; cursor: pointer; }
.filter-group input[type=checkbox] { accent-color: var(--ink); }
.filter-actions { display: flex; gap: 8px; margin-top: 14px; }
.shop-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-bottom: 16px; margin-bottom: 22px; border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
.shop-toolbar select { border: 1px solid var(--line); border-radius: 999px; padding: 9px 12px; background: #fff; }
.result-count { color: var(--muted); font-size: .88rem; }
.active-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; background: var(--surface-2);
  border-radius: 999px; padding: 5px 12px; font-size: .8rem;
}
.chip button { border: 0; background: none; cursor: pointer; color: var(--muted); }
.empty-state { text-align: center; padding: 70px 20px; border: 1px dashed var(--line); border-radius: var(--radius); }
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 34px; }
.pagination button {
  border: 1px solid var(--line); background: #fff; border-radius: 10px; min-width: 38px;
  padding: 8px; cursor: pointer;
}
.pagination button.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------------- 商品详情 ---------------- */
.breadcrumbs { font-size: .82rem; color: var(--muted); padding: 20px 0 8px; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--ink); }
.product-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; padding-bottom: 20px; }
.gallery-main { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); aspect-ratio: 1/1; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.gallery-thumbs img {
  width: 76px; height: 76px; object-fit: cover; border-radius: var(--radius-sm);
  border: 2px solid var(--line); cursor: pointer; background: var(--surface);
}
.gallery-thumbs img.active { border-color: var(--ink); }
.p-detail h1 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin-bottom: .3em; }
.p-detail .p-meta { display: flex; align-items: center; gap: 10px; font-size: .85rem; color: var(--muted); margin-bottom: 14px; }
.p-price { display: flex; align-items: baseline; gap: 12px; margin: 10px 0 6px; }
.p-price .now { font-size: 2rem; font-weight: 800; }
.p-price .was { color: var(--muted); }
.p-price .save { background: #fff2e8; color: var(--accent); font-weight: 700; font-size: .78rem; padding: 4px 10px; border-radius: 999px; }
.p-desc { color: var(--ink-2); }
.option-group { margin: 18px 0; }
.option-group h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 8px; }
.option-values { display: flex; gap: 8px; flex-wrap: wrap; }
.option-values button {
  border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 8px 16px; cursor: pointer; font-size: .86rem;
}
.option-values button.active { border-color: var(--ink); background: var(--ink); color: #fff; }
.buy-row { display: flex; gap: 12px; align-items: stretch; margin: 20px 0 14px; }
.qty { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.qty button { border: 0; background: #fff; width: 40px; padding: 10px 0; cursor: pointer; font-size: 1rem; }
.qty button:hover { background: var(--surface); }
.qty input { width: 46px; border: 0; text-align: center; outline: none; }
.buy-row .btn { flex: 1; }
.stock-note { font-size: .84rem; }
.stock-note.in { color: var(--green); }
.stock-note.low { color: var(--accent); }
.p-points { border-top: 1px solid var(--line); margin-top: 22px; padding-top: 18px; display: grid; gap: 10px; font-size: .86rem; }
.p-points li { display: flex; gap: 10px; color: var(--ink-2); }
.tabs { border-top: 1px solid var(--line); margin-top: 40px; }
.tabs-nav { display: flex; gap: 26px; border-bottom: 1px solid var(--line); }
.tabs-nav button {
  border: 0; background: none; padding: 16px 0; cursor: pointer; font-weight: 600; font-size: .92rem;
  color: var(--muted); border-bottom: 2px solid transparent;
}
.tabs-nav button.active { color: var(--ink); border-color: var(--ink); }
.tab-panel { display: none; padding: 24px 0; }
.tab-panel.active { display: block; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .9rem; max-width: 640px; }
.spec-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); }
.spec-table td:first-child { color: var(--muted); width: 190px; }
.review { border-bottom: 1px solid var(--line); padding: 16px 0; }
.review b { display: block; }

/* ---------------- 购物车 ---------------- */
.cart-layout { display: grid; grid-template-columns: 1fr 350px; gap: 32px; align-items: start; }
.cart-line { display: grid; grid-template-columns: 110px 1fr auto; gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); align-items: center; }
.cart-line img { width: 110px; height: 110px; object-fit: cover; border-radius: var(--radius-sm); background: var(--surface); }
.cart-line .remove { background: none; border: 0; color: var(--muted); cursor: pointer; text-decoration: underline; font-size: .8rem; padding: 0; }
.summary { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--surface); position: sticky; top: 130px; }
.summary h3 { margin-bottom: 14px; }
.row-between { display: flex; justify-content: space-between; padding: 7px 0; font-size: .92rem; }
.row-between.total { border-top: 1px solid var(--line); margin-top: 8px; padding-top: 14px; font-size: 1.05rem; font-weight: 700; }
.coupon-row { display: flex; gap: 8px; margin: 14px 0; }
.coupon-row input { flex: 1; padding: 10px 12px; border: 1px solid var(--line); border-radius: 999px; outline: none; }
.notice { background: #fff8f1; border: 1px solid #ffe0c7; color: #8a4413; border-radius: var(--radius-sm); padding: 12px 14px; font-size: .85rem; }

/* ---------------- 结账 ---------------- */
.checkout-layout { display: grid; grid-template-columns: 1.25fr 1fr; gap: 40px; align-items: start; }
.form-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.form-card h3 { font-size: 1.05rem; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .82rem; color: var(--ink-2); margin-bottom: 5px; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: #fff; outline: none; transition: .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); }
.field.error input, .field.error select { border-color: var(--red); }
.field .err { color: var(--red); font-size: .76rem; display: none; margin-top: 4px; }
.field.error .err { display: block; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-row-3 { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 14px; }
.pay-option {
  display: flex; gap: 12px; align-items: flex-start; border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px; margin-bottom: 10px; cursor: pointer;
}
.pay-option.selected { border-color: var(--ink); background: var(--surface); }
.pay-option input { margin-top: 4px; accent-color: var(--ink); }
.pay-option b { display: block; font-size: .92rem; }
.pay-option small { color: var(--muted); }
.mini-line { display: grid; grid-template-columns: 60px 1fr auto; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.mini-line img { width: 60px; height: 60px; object-fit: cover; border-radius: 8px; background: var(--surface); }

/* ---------------- 成功页 ---------------- */
.success-card { max-width: 720px; margin: 0 auto; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; text-align: center; }
.success-mark { width: 64px; height: 64px; border-radius: 50%; background: var(--green); color: #fff; display: grid; place-items: center; font-size: 1.8rem; margin: 0 auto 16px; }
.order-box { text-align: left; background: var(--surface); border-radius: var(--radius); padding: 20px; margin: 22px 0; font-size: .9rem; }

/* ---------------- 页脚 ---------------- */
.newsletter { background: var(--ink); color: #fff; padding: 40px 0; }
.newsletter h3 { color: #fff; }
.newsletter .muted { color: rgba(255,255,255,.65); }
.newsletter-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.newsletter-form { display: flex; gap: 10px; flex: 0 1 420px; }
.newsletter-form input { flex: 1; padding: 12px 16px; border-radius: 999px; border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.08); color: #fff; outline: none; }
.newsletter-form input::placeholder { color: rgba(255,255,255,.5); }
.newsletter-form .btn-primary { background: #fff; color: var(--ink); }
.newsletter-form .btn-primary:hover { background: #e8e8e8; }
.site-footer { background: var(--surface); padding: 48px 0 26px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer-grid h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.footer-grid li { padding: 4px 0; font-size: .88rem; }
.brand-footer { margin-bottom: 12px; }
.pay-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pay-chip { border: 1px solid var(--line); background: #fff; border-radius: 6px; padding: 5px 9px; font-size: .72rem; font-weight: 600; color: var(--ink-2); }
.social-row { display: flex; gap: 14px; margin-top: 14px; font-size: .84rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; border-top: 1px solid var(--line); margin-top: 30px; padding-top: 18px; font-size: .82rem; color: var(--muted); }

/* ---------------- 购物车抽屉 / 提示 ---------------- */
.cart-drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: min(400px, 92vw); background: #fff;
  box-shadow: var(--shadow-lg); transform: translateX(102%); transition: transform .28s ease;
  z-index: 60; display: flex; flex-direction: column;
}
.cart-drawer.open { transform: translateX(0); }
.cart-drawer-inner { display: flex; flex-direction: column; height: 100%; }
.cart-drawer-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.cart-drawer-head button { border: 0; background: none; font-size: 1.1rem; cursor: pointer; }
.cart-drawer-body { flex: 1; overflow-y: auto; padding: 10px 20px; }
.cart-drawer-foot { padding: 18px 20px; border-top: 1px solid var(--line); display: grid; gap: 8px; }
.drawer-line { display: grid; grid-template-columns: 62px 1fr auto; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.drawer-line img { width: 62px; height: 62px; object-fit: cover; border-radius: 8px; background: var(--surface); }
.drawer-line-info { display: flex; flex-direction: column; gap: 2px; font-size: .88rem; }
.drawer-line-price { font-weight: 700; font-size: .9rem; }
.overlay { position: fixed; inset: 0; background: rgba(16,21,28,.35); opacity: 0; pointer-events: none; transition: .25s; z-index: 55; }
.overlay.show { opacity: 1; pointer-events: auto; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }
.toast-host { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 80; display: grid; gap: 8px; }
.toast {
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 999px; font-size: .88rem;
  display: flex; align-items: center; gap: 9px; opacity: 0; transform: translateY(10px); transition: .25s; box-shadow: var(--shadow-lg);
}
.toast.in { opacity: 1; transform: translateY(0); }
.toast-dot { width: 8px; height: 8px; border-radius: 50%; background: #46d17f; }

/* ---------------- 内容页 ---------------- */
.page-hero { background: var(--surface); border-bottom: 1px solid var(--line); padding: 48px 0; }
.prose { max-width: 780px; }
.prose h2 { margin-top: 34px; }
.prose h3 { margin-top: 26px; }
.prose li { padding: 5px 0; color: var(--ink-2); }
.toc { border-left: 3px solid var(--line); padding-left: 14px; margin: 20px 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { padding: 16px 0; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--muted); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--ink-2); padding-bottom: 16px; margin: 0; }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: start; }
.info-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--surface); }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { grid-template-columns: 1fr; padding: 44px 20px; }
  .hero-visual { order: -1; }
  .shop-layout { grid-template-columns: 220px 1fr; }
  .product-layout { grid-template-columns: 1fr; gap: 28px; }
  .cart-layout, .checkout-layout, .contact-grid { grid-template-columns: 1fr; }
  .summary { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .hide-sm { display: none; }
  .burger { display: block; }
  .header-main { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
  .search { order: 3; flex: 1 1 100%; max-width: none; }
  .cat-nav ul { display: none; }
  .cat-nav.open ul { display: flex; flex-wrap: wrap; padding: 12px 0; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .shop-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .section { padding: 38px 0; }
  .field-row, .field-row-3 { grid-template-columns: 1fr; }
  .cart-line { grid-template-columns: 80px 1fr; }
  .cart-line img { width: 80px; height: 80px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}
@media (max-width: 460px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .card-actions { flex-direction: column; }
}