:root {
  --ink: #10131a;
  --ink-2: #171b24;
  --ink-3: #222834;
  --gold: #c9a227;
  --gold-2: #e8c96a;
  --gold-deep: #9a7a14;
  --cream: #faf8f3;
  --paper: #ffffff;
  --text: #1d222b;
  --muted: #6f7683;
  --muted-2: #9aa0aa;
  --line: #e9e4d9;
  --line-soft: #f1ede4;
  --green: #15803d;
  --red: #b45309;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", SimSun, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --shadow-sm: 0 2px 10px rgba(25, 22, 12, .05);
  --shadow-md: 0 14px 40px rgba(25, 22, 12, .09);
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--cream);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; line-height: 1.35; margin: 0; color: var(--text); }

img { max-width: 100%; display: block; }

.container { width: min(1180px, 92%); margin: 0 auto; }

section[id] { scroll-margin-top: 86px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ============ 顶栏 ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(13, 16, 22, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled { background: rgba(13, 16, 22, .96); box-shadow: 0 10px 30px rgba(0, 0, 0, .25); }
.header-inner { display: flex; align-items: center; gap: 26px; height: 70px; }

.logo { display: flex; align-items: center; gap: 11px; color: #fff; flex: 0 0 auto; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(140deg, var(--gold-2), #a9821b);
  color: #171204; font-weight: 800; font-family: var(--serif); font-size: 19px;
  display: grid; place-items: center;
  box-shadow: 0 6px 18px rgba(201, 162, 39, .28);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 16px; letter-spacing: .04em; font-family: var(--serif); }
.logo-text small { font-size: 10.5px; color: rgba(255, 255, 255, .55); letter-spacing: .12em; }

.nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav a {
  color: rgba(255, 255, 255, .72); font-size: 14px; padding: 8px 12px; border-radius: 8px;
  transition: color .18s, background .18s; white-space: nowrap;
}
.nav a:hover { color: var(--gold-2); background: rgba(255, 255, 255, .05); }

.header-phone { display: flex; align-items: center; gap: 9px; color: #fff; }
.header-phone small { display: block; font-size: 10.5px; color: rgba(255, 255, 255, .5); line-height: 1.2; }
.header-phone strong { font-size: 15px; letter-spacing: .02em; color: var(--gold-2); font-variant-numeric: tabular-nums; }
.header-phone .ico { width: 30px; height: 30px; border-radius: 50%; background: rgba(201, 162, 39, .16); color: var(--gold-2); display: grid; place-items: center; }
.header-phone .ico svg { width: 15px; height: 15px; }

.nav-toggle { display: none; background: none; border: none; color: #fff; padding: 8px; cursor: pointer; }
.nav-toggle svg { width: 22px; height: 22px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 24px; border-radius: 10px;
  font-size: 14.5px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all .18s ease; white-space: nowrap;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-2), #c49a1e);
  color: #1b1503;
  box-shadow: 0 10px 26px rgba(201, 162, 39, .32);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(201, 162, 39, .4); }
.btn-outline { border-color: rgba(255, 255, 255, .3); color: #fff; background: rgba(255, 255, 255, .03); }
.btn-outline:hover { border-color: var(--gold-2); color: var(--gold-2); }
.btn-dark { background: #171b24; color: #fff; }
.btn-dark:hover { background: #232a36; transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); background: #fff; color: var(--text); }
.btn-ghost:hover { border-color: #d6cdb8; }
.btn-sm { height: 36px; padding: 0 15px; font-size: 13px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .6; cursor: not-allowed; transform: none; }

/* ============ Hero ============ */
.hero {
  position: relative; padding: 140px 0 84px; overflow: hidden;
  background:
    radial-gradient(900px 520px at 78% 8%, rgba(201, 162, 39, .19), transparent 62%),
    radial-gradient(700px 420px at 8% 92%, rgba(201, 162, 39, .09), transparent 60%),
    linear-gradient(160deg, #0d1016 0%, #12151d 55%, #0b0d12 100%);
  color: #fff;
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 35%, #000 0%, transparent 72%);
}
.hero::after {
  content: ""; position: absolute; left: 50%; top: -1px; width: 1px; height: 190px;
  background: linear-gradient(180deg, rgba(232, 201, 106, .8), transparent);
  transform: translateX(-50%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; letter-spacing: .2em; color: var(--gold-2);
  padding: 7px 15px; border: 1px solid rgba(232, 201, 106, .32); border-radius: 999px;
  background: rgba(232, 201, 106, .06); margin-bottom: 26px;
}
.eyebrow::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--gold-2); }

.hero h1 {
  color: #fff; font-size: clamp(38px, 5vw, 62px); line-height: 1.2; letter-spacing: .02em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #f7e3a5, var(--gold) 60%, #a9821b);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { color: rgba(255, 255, 255, .64); font-size: 16px; margin: 22px 0 34px; max-width: 540px; line-height: 1.85; }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 46px; margin-top: 54px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, .1); }
.hero-stat strong { display: block; font-family: var(--serif); font-size: 30px; color: var(--gold-2); line-height: 1.2; }
.hero-stat span { font-size: 12.5px; color: rgba(255, 255, 255, .45); letter-spacing: .06em; }

/* 快捷报价卡 */
.quick-card {
  background: linear-gradient(165deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .035));
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 20px; padding: 26px 24px;
  backdrop-filter: blur(12px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .35);
}
.quick-card h3 { color: #fff; font-size: 17px; }
.quick-card .qc-sub { font-size: 12px; color: rgba(255, 255, 255, .5); margin: 5px 0 18px; }
.qc-list { display: flex; flex-direction: column; gap: 9px; }
.qc-item {
  display: flex; align-items: center; gap: 11px;
  padding: 11px 12px; border-radius: 11px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .07);
}
.qc-emblem {
  width: 34px; height: 34px; border-radius: 9px; flex: 0 0 34px;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
  background: linear-gradient(135deg, #3b3320, #241f13); color: var(--gold-2);
  border: 1px solid rgba(232, 201, 106, .22);
}
.qc-name { font-size: 13px; color: #fff; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qc-name small { display: block; font-size: 10.5px; color: rgba(255, 255, 255, .42); }
.qc-price { margin-left: auto; text-align: right; flex: 0 0 auto; }
.qc-price strong { color: var(--gold-2); font-size: 16px; font-variant-numeric: tabular-nums; }
.qc-price span { font-size: 10px; color: rgba(255, 255, 255, .4); display: block; }
.qc-foot { margin-top: 16px; font-size: 11.5px; color: rgba(255, 255, 255, .42); text-align: center; }

/* ============ 通用区块 ============ */
.section { padding: 88px 0; }
.section.alt { background: #fff; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 46px; }
.section-tag {
  font-size: 12px; letter-spacing: .24em; color: var(--gold-deep);
  text-transform: uppercase; margin-bottom: 14px; display: block;
}
.section-head h2 { font-size: clamp(26px, 3.2vw, 36px); letter-spacing: .02em; }
.section-head p { color: var(--muted); margin: 14px 0 0; font-size: 14.5px; }
.section-head .rule { width: 62px; height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent); margin: 22px auto 0; }

/* ============ 服务优势 ============ */
.advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.adv-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; transition: transform .2s ease, box-shadow .2s ease;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.adv-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(140deg, #fbf3dc, #f6eccd);
  color: var(--gold-deep); display: grid; place-items: center; margin-bottom: 16px;
}
.adv-icon svg { width: 22px; height: 22px; }
.adv-card h4 { font-size: 16px; margin-bottom: 7px; }
.adv-card p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.75; }

/* ============ 分类 ============ */
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; cursor: pointer; transition: all .22s ease;
}
.cat-card::after {
  content: ""; position: absolute; right: -30px; bottom: -46px; width: 120px; height: 120px;
  border-radius: 50%; background: radial-gradient(circle, rgba(201, 162, 39, .12), transparent 68%);
  transition: transform .3s ease;
}
.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #ddd3ba; }
.cat-card:hover::after { transform: scale(1.3); }
.cat-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.cat-icon { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(145deg, #1b202a, #0f1319); color: var(--gold-2); display: grid; place-items: center; }
.cat-icon svg { width: 22px; height: 22px; }
.cat-count { font-size: 11.5px; color: var(--muted-2); border: 1px solid var(--line); padding: 2px 9px; border-radius: 999px; }
.cat-card h4 { font-size: 17px; margin-bottom: 6px; }
.cat-card p { margin: 0 0 16px; font-size: 12.5px; color: var(--muted); line-height: 1.65; min-height: 42px; }
.cat-price { font-size: 12px; color: var(--muted-2); display: flex; align-items: center; gap: 5px; }
.cat-price strong { color: var(--gold-deep); font-size: 14px; font-variant-numeric: tabular-nums; }
.cat-arrow { margin-left: auto; color: var(--gold); font-size: 15px; transition: transform .2s; }
.cat-card:hover .cat-arrow { transform: translateX(4px); }

/* ============ 价格区 ============ */
.notice-bar {
  display: flex; align-items: center; gap: 12px;
  background: #fdf9ec; border: 1px solid #f0e2bd; border-radius: 10px;
  padding: 12px 18px; font-size: 12.5px; color: #7a6420; margin-bottom: 26px;
}
.notice-bar .ico { flex: 0 0 auto; width: 18px; height: 18px; color: var(--gold-deep); }
.notice-bar svg { width: 100%; height: 100%; }

.price-toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 26px; }
.tabs { display: flex; gap: 6px; background: #fff; border: 1px solid var(--line); padding: 5px; border-radius: 11px; flex-wrap: wrap; }
.tab {
  border: none; background: none; padding: 8px 16px; border-radius: 8px;
  font-size: 13.5px; color: var(--muted); cursor: pointer; transition: all .16s ease; white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active { background: #171b24; color: #fff; font-weight: 600; }

.search-box { position: relative; margin-left: auto; }
.search-box input {
  width: 210px; height: 42px; border: 1px solid var(--line); border-radius: 10px;
  padding: 0 14px 0 38px; font-size: 13.5px; background: #fff; outline: none; color: var(--text);
  transition: border-color .16s, box-shadow .16s;
  font-family: inherit;
}
.search-box input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201, 162, 39, .12); }
.search-box svg { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--muted-2); }

.sort-select {
  height: 42px; border: 1px solid var(--line); border-radius: 10px; background: #fff;
  padding: 0 34px 0 13px; font-size: 13px; color: var(--text); outline: none; cursor: pointer;
  appearance: none; font-family: inherit;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236f7683' stroke-width='1.4' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 13px center;
}

.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 20px 20px; display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative; overflow: hidden;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #ded4be; }
.pc-top { display: flex; align-items: flex-start; gap: 11px; margin-bottom: 12px; }
.pc-emblem {
  width: 42px; height: 42px; flex: 0 0 42px; border-radius: 11px;
  background: linear-gradient(145deg, #f7efd9, #efe2c0);
  color: #8a6c10; display: grid; place-items: center;
  font-family: var(--serif); font-size: 17px; font-weight: 700;
  border: 1px solid rgba(201, 162, 39, .18);
}
.pc-tags { display: flex; gap: 5px; flex-wrap: wrap; }
.tag { font-size: 10.5px; padding: 2px 8px; border-radius: 999px; background: #f5f2ea; color: #8a8069; line-height: 1.6; }
.tag.hot { background: #fbf0d3; color: #92710f; }
.tag.cat { background: #f0f2f6; color: #5b6472; }

.pc-name { font-size: 15.5px; font-weight: 700; line-height: 1.45; margin-bottom: 4px; color: var(--text); }
.pc-spec { font-size: 12px; color: var(--muted-2); min-height: 19px; }

.pc-price-row { display: flex; align-items: flex-end; gap: 9px; margin: 16px 0 4px; }
.pc-price { font-family: var(--serif); font-size: 27px; font-weight: 700; color: var(--red); line-height: 1; }
.pc-price-cur { font-size: 13px; color: var(--red); margin-bottom: 2px; }
.pc-market { font-size: 11.5px; color: var(--muted-2); margin-left: auto; padding-bottom: 2px; }
.pc-market s { text-decoration: line-through; }
.trend { font-size: 11px; padding: 1px 7px; border-radius: 999px; font-weight: 600; display: inline-flex; align-items: center; gap: 3px; }
.trend.up { color: var(--green); background: #eaf6ee; }
.trend.down { color: #7c8492; background: #f2f3f5; }
.trend.flat { color: #9aa0aa; background: #f6f6f7; }

.pc-desc {
  font-size: 11.5px; color: var(--muted-2); line-height: 1.65;
  margin: 10px 0 16px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  min-height: 38px;
}
.pc-foot { margin-top: auto; display: flex; gap: 8px; }
.pc-foot .btn { flex: 1; height: 38px; font-size: 13px; }

.price-empty { grid-column: 1 / -1; padding: 56px 20px; text-align: center; color: var(--muted-2); background: #fff; border: 1px dashed var(--line); border-radius: var(--radius); font-size: 13.5px; }

.load-more-row { display: flex; justify-content: center; margin-top: 34px; }

/* ============ 估价区 ============ */
.quote-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: start; }
.quote-intro h2 { font-size: clamp(25px, 3vw, 33px); margin-bottom: 16px; }
.quote-intro > p { color: var(--muted); font-size: 14.5px; margin: 0 0 30px; }
.steps { display: flex; flex-direction: column; gap: 4px; }
.step { display: flex; gap: 16px; padding: 15px 0; border-bottom: 1px dashed var(--line); }
.step:last-child { border-bottom: none; }
.step-no {
  flex: 0 0 34px; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid #ddcfa8; color: var(--gold-deep);
  display: grid; place-items: center; font-family: var(--serif); font-weight: 700;
  background: #fffdf7;
}
.step h5 { margin: 4px 0 3px; font-size: 14.5px; font-weight: 700; font-family: var(--sans); }
.step p { margin: 0; font-size: 12.5px; color: var(--muted); }

.quote-panel {
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  box-shadow: var(--shadow-md); overflow: hidden;
}
.qp-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 24px; border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, #fffdf7, #fff);
}
.qp-head h3 { font-size: 17px; }
.qp-head span { font-size: 12px; color: var(--muted-2); }
.qp-body { padding: 20px 24px 24px; }

.qp-items { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; max-height: 320px; overflow-y: auto; }
.qp-item { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border: 1px solid var(--line-soft); border-radius: 11px; background: #fcfbf7; }
.qp-item .name { font-size: 13px; font-weight: 600; line-height: 1.4; }
.qp-item .name small { display: block; font-weight: 400; color: var(--muted-2); font-size: 10.5px; }
.qp-item .price { margin-left: auto; font-size: 13.5px; font-weight: 700; color: var(--red); white-space: nowrap; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.qty button { width: 26px; height: 28px; border: none; background: #fff; cursor: pointer; font-size: 14px; color: var(--muted); line-height: 1; }
.qty button:hover { background: #f6f2e8; color: var(--text); }
.qty span { width: 28px; text-align: center; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.qp-remove { border: none; background: none; color: var(--muted-2); cursor: pointer; padding: 4px; font-size: 16px; line-height: 1; }
.qp-remove:hover { color: #b91c1c; }

.qp-empty { text-align: center; padding: 26px 10px; color: var(--muted-2); font-size: 13px; }
.qp-empty .ico { width: 40px; height: 40px; margin: 0 auto 10px; color: #d8cfb8; }
.qp-empty svg { width: 100%; height: 100%; }

.qp-total {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 14px 16px; border-radius: 11px; background: #fdf8e9; border: 1px solid #f2e5c2;
  margin-bottom: 20px;
}
.qp-total span { font-size: 12.5px; color: #8a7328; }
.qp-total strong { font-family: var(--serif); font-size: 24px; color: var(--red); font-variant-numeric: tabular-nums; }

.form-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: span 2; }
.field > span { font-size: 12px; color: var(--muted); font-weight: 500; }
.field input, .field textarea {
  height: 42px; border: 1px solid var(--line); border-radius: 9px; background: #fff;
  padding: 0 13px; font-size: 13.5px; color: var(--text); outline: none; font-family: inherit;
  transition: border-color .16s, box-shadow .16s;
}
.field textarea { height: auto; padding: 10px 13px; resize: vertical; line-height: 1.6; }
.field input:focus, .field textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201, 162, 39, .12); }
.field input::placeholder, .field textarea::placeholder { color: #b3b7be; }
.qp-submit { margin-top: 18px; }
.qp-tip { font-size: 11px; color: var(--muted-2); text-align: center; margin-top: 10px; line-height: 1.6; }

/* ============ 订单查询 ============ */
.order-query { max-width: 760px; margin: 0 auto; }
.query-box { display: flex; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 8px; box-shadow: var(--shadow-sm); }
.query-box input { flex: 1; height: 46px; border: none; background: none; padding: 0 14px; font-size: 14px; outline: none; color: var(--text); font-family: inherit; min-width: 0; }
.query-box .btn { flex: 0 0 auto; }
.query-hint { font-size: 12px; color: var(--muted-2); text-align: center; margin-top: 12px; }

.order-results { margin-top: 26px; display: flex; flex-direction: column; gap: 14px; }
.order-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.oc-head { display: flex; align-items: center; gap: 12px; padding: 15px 18px; border-bottom: 1px solid var(--line-soft); background: #fdfcf8; flex-wrap: wrap; }
.oc-no { font-size: 13px; font-weight: 700; font-variant-numeric: tabular-nums; }
.oc-time { font-size: 11.5px; color: var(--muted-2); }
.oc-status { margin-left: auto; font-size: 11.5px; font-weight: 600; padding: 3px 11px; border-radius: 999px; }
.st-pending { background: #fff4e5; color: #b45309; }
.st-quoted { background: #e8efff; color: #1d4ed8; }
.st-accepted { background: #e8f7ee; color: #15803d; }
.st-completed { background: #eaf6ee; color: #166534; }
.st-cancelled { background: #f2f3f5; color: #6b7280; }
.oc-body { padding: 15px 18px 17px; font-size: 13px; }
.oc-items { display: flex; flex-direction: column; gap: 7px; }
.oc-item { display: flex; justify-content: space-between; gap: 12px; color: #4b5260; }
.oc-item span:last-child { color: var(--muted); white-space: nowrap; }
.oc-meta { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 12px; color: var(--muted-2); }
.oc-meta strong { color: var(--red); font-size: 14px; font-variant-numeric: tabular-nums; }
.oc-note { margin-top: 10px; background: #fffaf0; border: 1px solid #f5e8c9; border-radius: 8px; padding: 8px 11px; font-size: 12px; color: #8a7328; }

/* ============ 流程 ============ */
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.flow-grid::before { content: ""; position: absolute; top: 28px; left: 12%; right: 12%; height: 1px; background: linear-gradient(90deg, transparent, #ddd3ba, transparent); }
.flow-item { position: relative; text-align: center; padding: 0 14px; }
.flow-no { width: 58px; height: 58px; margin: 0 auto 18px; border-radius: 50%; background: #fff; border: 1px solid #e3d7b9; color: var(--gold-deep); display: grid; place-items: center; font-family: var(--serif); font-size: 21px; font-weight: 700; position: relative; z-index: 1; box-shadow: 0 8px 22px rgba(25, 22, 12, .06); }
.flow-item h4 { font-size: 16px; margin-bottom: 7px; }
.flow-item p { font-size: 12.5px; color: var(--muted); margin: 0; line-height: 1.7; }

/* ============ FAQ ============ */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 17px 20px; font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; margin-left: auto; color: var(--gold); font-size: 17px; font-weight: 400; transition: transform .2s; }
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-a { padding: 0 20px 17px; font-size: 13px; color: var(--muted); line-height: 1.8; border-top: 1px solid var(--line-soft); padding-top: 14px; }

/* ============ 联系 ============ */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.contact-row { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.contact-row:last-child { border-bottom: none; }
.contact-ico { width: 38px; height: 38px; flex: 0 0 38px; border-radius: 10px; background: #fbf6e6; color: var(--gold-deep); display: grid; place-items: center; }
.contact-ico svg { width: 18px; height: 18px; }
.contact-row .k { font-size: 11.5px; color: var(--muted-2); }
.contact-row .v { font-size: 14.5px; font-weight: 600; color: var(--text); word-break: break-all; }
.contact-about h3 { font-size: 20px; margin-bottom: 12px; }
.contact-about p { font-size: 13.5px; color: var(--muted); line-height: 1.9; margin: 0; }

/* ============ 页脚 ============ */
.site-footer { background: #0d1016; color: rgba(255, 255, 255, .55); padding: 52px 0 30px; font-size: 12.5px; }
.footer-top { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; padding-bottom: 30px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand { max-width: 380px; }
.footer-brand .logo { margin-bottom: 12px; }
.footer-brand p { margin: 0; line-height: 1.8; color: rgba(255, 255, 255, .42); }
.footer-links { display: flex; gap: 52px; flex-wrap: wrap; }
.footer-col h6 { margin: 0 0 12px; font-size: 12px; letter-spacing: .1em; color: var(--gold-2); font-weight: 600; }
.footer-col a { display: block; padding: 4px 0; color: rgba(255, 255, 255, .5); }
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 22px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 11.5px; color: rgba(255, 255, 255, .3); }

/* ============ 浮动购物车 ============ */
.cart-fab {
  position: fixed; right: 20px; bottom: 24px; z-index: 60;
  display: none; align-items: center; gap: 9px;
  height: 52px; padding: 0 18px; border-radius: 999px; border: none; cursor: pointer;
  background: linear-gradient(135deg, var(--gold-2), #c49a1e); color: #1b1503;
  font-size: 13.5px; font-weight: 700;
  box-shadow: 0 14px 34px rgba(201, 162, 39, .38);
}
.cart-fab.show { display: inline-flex; }
.cart-fab .count { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: #1b1503; color: var(--gold-2); font-size: 11px; display: grid; place-items: center; }

/* ============ 弹层 / 提示 ============ */
.toast-host { position: fixed; top: 88px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast { padding: 11px 20px; border-radius: 10px; background: #171b24; color: #fff; font-size: 13px; box-shadow: 0 14px 34px rgba(0, 0, 0, .28); animation: toastIn .22s ease; }
.toast.ok { background: #166534; }
.toast.err { background: #991b1b; }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

.modal-mask { position: fixed; inset: 0; z-index: 150; background: rgba(10, 12, 16, .6); backdrop-filter: blur(3px); display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-mask.open { display: flex; }
.modal { width: 100%; max-width: 430px; background: #fff; border-radius: 20px; padding: 34px 30px; text-align: center; box-shadow: 0 40px 90px rgba(0, 0, 0, .35); animation: modalIn .2s ease; }
@keyframes modalIn { from { opacity: 0; transform: translateY(12px) scale(.98); } to { opacity: 1; transform: none; } }
.modal .ok-mark { width: 58px; height: 58px; margin: 0 auto 18px; border-radius: 50%; background: #eaf6ee; color: #166534; display: grid; place-items: center; }
.modal .ok-mark svg { width: 28px; height: 28px; }
.modal h3 { font-size: 21px; margin-bottom: 8px; }
.modal p { font-size: 13px; color: var(--muted); margin: 0 0 18px; line-height: 1.8; }
.modal .order-no { background: #fdf8e9; border: 1px dashed #e5d3a1; border-radius: 10px; padding: 12px; font-size: 17px; font-weight: 700; letter-spacing: .06em; color: #8a6c10; font-variant-numeric: tabular-nums; margin-bottom: 20px; }
.modal .btn { width: 100%; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .quick-card { max-width: 460px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .advantage-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
  .quote-wrap { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 0; }
  .flow-grid::before { display: none; }
}

@media (max-width: 760px) {
  .nav {
    position: fixed; top: 70px; left: 0; right: 0;
    background: rgba(13, 16, 22, .98); flex-direction: column;
    align-items: stretch; padding: 12px 18px 20px; gap: 2px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 10px; border-radius: 8px; }
  .header-phone small { display: none; }
  .header-phone strong { font-size: 14px; }
  .nav-toggle { display: block; margin-left: auto; }
  .header-phone { margin-left: 4px; }
  .header-inner { gap: 12px; }

  .hero { padding: 110px 0 60px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat strong { font-size: 24px; }
  .section { padding: 62px 0; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .product-card { padding: 18px 15px 15px; }
  .pc-price { font-size: 23px; }
  .advantage-grid, .category-grid { grid-template-columns: 1fr; }
  .price-toolbar { gap: 10px; }
  .search-box { margin-left: 0; width: 100%; }
  .search-box input { width: 100%; }
  .sort-select { flex: 1; }
  .tabs { width: 100%; }
  .tab { flex: 1; text-align: center; padding: 8px 10px; }
  .form-fields { grid-template-columns: 1fr; }
  .field.full { grid-column: span 1; }
  .flow-grid { grid-template-columns: 1fr; gap: 26px; }
  .flow-item { display: flex; text-align: left; gap: 16px; align-items: flex-start; }
  .flow-no { margin: 0; flex: 0 0 48px; width: 48px; height: 48px; font-size: 18px; }
  .quote-panel { border-radius: 16px; }
  .cart-fab.show { display: inline-flex; }
  .footer-links { gap: 30px; }
}

@media (max-width: 420px) {
  .product-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .query-box { flex-direction: column; }
  .query-box .btn { width: 100%; }
}