:root {
  /* 白金 / 香槟金 高端配色 */
  --bg: #fcfbf8;
  --bg-soft: #f5f1e9;
  --ink: #201e1a;
  --ink-soft: #443f37;
  --muted: #847c6e;
  --gold: #b8935a;
  --gold-deep: #9c7a42;
  --gold-light: #d9c293;
  --gold-soft: #f3ead6;
  --platinum: linear-gradient(135deg, #efece4 0%, #d7d1c4 100%);
  --line: #e8e1d4;
  --line-soft: #f0ebe0;
  --shadow: 0 18px 44px rgba(86, 66, 28, 0.10);
  --shadow-sm: 0 6px 18px rgba(86, 66, 28, 0.08);
  --radius: 18px;
  --maxw: 1240px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
/* 屏幕阅读器专用（语义化但视觉隐藏） */
.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; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 92px 0; }
.section-soft { background: var(--bg-soft); }
.text-center { text-align: center; }
h1, h2 { font-family: var(--serif); letter-spacing: .5px; }

/* ---------- 滚动进度条 ---------- */
#scrollbar { position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 999;
  background: linear-gradient(90deg, var(--gold-light), var(--gold), var(--gold-deep));
  box-shadow: 0 0 8px rgba(184,147,90,.5); transition: width .1s linear; }
#toTop { position: fixed; right: 22px; bottom: 26px; width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; color: var(--gold-deep); font-size: 20px; cursor: pointer;
  box-shadow: var(--shadow); opacity: 0; transform: translateY(12px); pointer-events: none; transition: .3s; z-index: 90; }
#toTop.show { opacity: 1; transform: none; pointer-events: auto; }
#toTop:hover { background: var(--gold); color: #fff; border-color: var(--gold); }

/* ---------- 滚动揭示动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- 顶部导航 ---------- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(252,251,248,.88);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.brand .logo { width: 44px; height: 44px; border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep)); display: grid; place-items: center;
  color: #fff; font-family: var(--serif); font-weight: 700; font-size: 20px; box-shadow: var(--shadow-sm); }
.brand .name { font-size: 18px; letter-spacing: .5px; }
.brand .name small { display: block; font-size: 10px; color: var(--muted); font-weight: 600; letter-spacing: 2px; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a { padding: 9px 16px; border-radius: 10px; font-weight: 600; color: var(--ink-soft); transition: .2s; position: relative; }
.nav-links a:hover, .nav-links a.active { color: var(--gold-deep); }
.nav-links a.active::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px; background: var(--gold); border-radius: 2px; }
.nav-cta { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff !important;
  padding: 10px 20px; border-radius: 11px; font-weight: 700; box-shadow: 0 8px 18px rgba(156,122,66,.30); transition: .2s; }
.nav-cta:hover { transform: translateY(-2px); filter: brightness(1.05); }
.nav-toggle { display: none; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--gold-deep); }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; margin-left: 4px; flex: 0 0 auto; }
.lang-switch button { border: 0; background: #fff; color: var(--ink-soft); font-weight: 700; font-size: 13px; padding: 7px 12px; cursor: pointer; transition: .2s; }
.lang-switch button.active { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; }

/* ---------- 英雄区（明亮白金） ---------- */
.hero { position: relative; overflow: hidden;
  background: radial-gradient(1000px 460px at 85% -20%, rgba(184,147,90,.22), transparent 60%),
              linear-gradient(180deg, #fcfbf8 0%, #f6f1e7 100%);
  color: var(--ink); }
.hero::after { content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(184,147,90,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(184,147,90,.05) 1px, transparent 1px);
  background-size: 48px 48px; opacity: .6; pointer-events: none; }
.hero-inner { position: relative; padding: 100px 0 116px; }
.hero .eyebrow { display: inline-flex; align-items: center; gap: 8px;
  background: rgba(184,147,90,.12); border: 1px solid rgba(184,147,90,.35);
  padding: 7px 16px; border-radius: 999px; font-size: 13px; letter-spacing: 1px; font-weight: 600; color: var(--gold-deep); }
.hero h1 { font-size: 48px; line-height: 1.22; margin: 22px 0 16px; font-weight: 700; }
.hero h1 .hl { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 18px; max-width: 640px; color: var(--ink-soft); }
.hero-stats { display: flex; gap: 40px; margin-top: 42px; flex-wrap: wrap; }
.hero-stats .s b { font-size: 32px; display: block; font-weight: 800; color: var(--ink); font-family: var(--serif); }
.hero-stats .s span { font-size: 13px; color: var(--muted); }

/* 向下滚动提示 */
.scroll-cue { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 4;
  display: flex; flex-direction: column; align-items: center; gap: 6px; color: var(--gold-deep); font-size: 12px; cursor: pointer; }
.scroll-cue .dot { width: 26px; height: 42px; border: 2px solid var(--gold); border-radius: 14px; position: relative; }
.scroll-cue .dot::after { content: ""; position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; border-radius: 3px; background: var(--gold); transform: translateX(-50%); animation: cue 1.6s infinite; }
@keyframes cue { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 100% { opacity: 0; top: 22px; } }

/* ---------- 搜索框 ---------- */
.search-wrap { position: relative; margin-top: 40px; max-width: 780px; z-index: 5; }
.search-box { display: flex; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 8px; box-shadow: var(--shadow); }
.search-box input { flex: 1; border: 0; outline: 0; padding: 14px 18px; font-size: 16px; color: var(--ink); background: transparent; }
.search-box select { border: 0; outline: 0; padding: 0 14px; font-size: 15px; color: var(--ink-soft); background: var(--bg-soft); border-radius: 10px; margin-right: 6px; font-weight: 600; cursor: pointer; }
.search-box button { border: 0; cursor: pointer; padding: 0 28px; border-radius: 13px; font-weight: 700; font-size: 15px;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; transition: .2s; }
.search-box button:hover { filter: brightness(1.06); }
.search-tags { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; color: var(--muted); font-size: 14px; }
.search-tags .t { background: rgba(184,147,90,.12); border: 1px solid rgba(184,147,90,.3); padding: 5px 14px; border-radius: 999px; cursor: pointer; transition: .2s; font-size: 13px; color: var(--gold-deep); }
.search-tags .t:hover { background: var(--gold); color: #fff; border-color: var(--gold); }

/* ---------- 区块标题 ---------- */
.sec-head { max-width: 740px; margin: 0 auto 50px; text-align: center; position: relative; }
.sec-head .tag { color: var(--gold-deep); font-weight: 700; letter-spacing: 3px; font-size: 12px; text-transform: uppercase; }
.sec-head h2 { font-size: 36px; margin: 12px 0 12px; font-weight: 700; }
.sec-head h2::after { content: ""; display: block; width: 56px; height: 3px; margin: 16px auto 0; border-radius: 3px;
  background: linear-gradient(90deg, var(--gold-light), var(--gold), var(--gold-deep)); }
.sec-head p { color: var(--muted); font-size: 16px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.cat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px;
  transition: .28s; position: relative; overflow: hidden; }
.cat-card::before { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 100%; background: var(--c, var(--gold)); }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.cat-card .ic { width: 56px; height: 56px; border-radius: 15px; display: grid; place-items: center; color: #fff; font-size: 24px; background: var(--c, var(--gold)); margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.cat-card h3 { font-size: 20px; margin-bottom: 6px; font-family: var(--serif); }
.cat-card .en { color: var(--muted); font-size: 12px; letter-spacing: 1px; text-transform: uppercase; }
.cat-card p { color: var(--muted); margin: 10px 0 14px; font-size: 14px; }
.cat-card .more { color: var(--gold-deep); font-weight: 700; font-size: 14px; }

.product-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .28s; display: flex; flex-direction: column; }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.product-thumb { height: 132px; background: var(--platinum); position: relative; display: grid; place-items: center; color: var(--ink); border-bottom: 1px solid var(--line); }
.product-thumb::before { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 100%; background: var(--c, var(--gold)); }
.product-thumb .grade { font-size: 24px; font-weight: 800; letter-spacing: 1px; font-family: var(--serif); }
.product-thumb .cat-badge { position: absolute; top: 12px; left: 12px; background: var(--gold); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 11px; border-radius: 999px; }
.product-body { padding: 18px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 18px; font-family: var(--serif); line-height: 1.4; }
.product-body .meta { color: var(--muted); font-size: 14px; margin: 6px 0 10px; }
.product-body .feature { font-size: 13.5px; color: var(--ink-soft); flex: 1; line-height: 1.7; }
.product-body .apps { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.product-body .apps span { background: var(--bg-soft); color: var(--gold-deep); font-size: 12px; padding: 3px 10px; border-radius: 8px; font-weight: 600; }

.app-card { text-align: center; padding: 32px 20px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: .28s; }
.app-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.app-card .ai { width: 66px; height: 66px; margin: 0 auto 16px; border-radius: 19px; background: linear-gradient(135deg, var(--gold-light), var(--gold)); display: grid; place-items: center; color: #fff; font-size: 28px; box-shadow: var(--shadow-sm); }
.app-card h3 { font-size: 18px; margin-bottom: 8px; font-family: var(--serif); }
.app-card p { color: var(--muted); font-size: 14px; }

.feat-card { display: flex; gap: 16px; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: .28s; }
.feat-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: var(--gold-light); }
.feat-card .fi { width: 50px; height: 50px; flex: 0 0 50px; border-radius: 14px; background: linear-gradient(135deg, var(--gold-light), var(--gold)); display: grid; place-items: center; color: #fff; font-size: 22px; }
.feat-card h3 { font-size: 17px; margin-bottom: 4px; font-family: var(--serif); }
.feat-card p { color: var(--muted); font-size: 14px; }

.news-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .28s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.news-cover { height: 162px; background: linear-gradient(135deg, #efe9dc, #ddd3c0); display: grid; place-items: center; color: var(--gold-deep); font-size: 40px; }
.news-body { padding: 18px 20px 22px; }
.news-body .date { color: var(--muted); font-size: 13px; }
.news-body h3 { font-size: 17px; margin: 8px 0 8px; line-height: 1.45; font-family: var(--serif); }
.news-body p { color: var(--muted); font-size: 14px; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 54px; align-items: center; }
.about-grid h2 { font-size: 34px; margin-bottom: 16px; font-family: var(--serif); }
.about-grid p { color: var(--ink-soft); margin-bottom: 14px; }
.about-figure { border-radius: 22px; min-height: 380px; background: linear-gradient(135deg, var(--gold-light), var(--gold-deep)); position: relative; overflow: hidden; display: grid; place-items: center; color: #fff; box-shadow: var(--shadow); }
.about-figure .big { font-size: 72px; font-family: var(--serif); text-shadow: 0 4px 18px rgba(0,0,0,.18); }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.metric { background: linear-gradient(160deg, var(--ink) 0%, #3c352b 100%); color: #f6efdd; border-radius: var(--radius); padding: 36px 22px; text-align: center; box-shadow: var(--shadow); }
.metric b { font-size: 42px; display: block; font-weight: 800; font-family: var(--serif); color: var(--gold-light); }
.metric span { opacity: .82; font-size: 14px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.contact-info .ci { display: flex; gap: 14px; margin-bottom: 22px; }
.contact-info .ci .ic { width: 48px; height: 48px; flex: 0 0 48px; border-radius: 13px; background: var(--bg-soft); color: var(--gold-deep); display: grid; place-items: center; font-size: 20px; border: 1px solid var(--line); }
.contact-info .ci b { display: block; font-size: 15px; }
.contact-info .ci span { color: var(--muted); font-size: 14px; }
.contact-fig { margin-top: 18px; border: 1px solid var(--line); border-radius: 14px; height: 200px; background: linear-gradient(135deg, var(--gold-light), var(--gold-deep)); display: grid; place-items: center; color: #fff; overflow: hidden; }
.contact-fig.has-img { background-image: var(--img); background-size: cover; background-position: center; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-card label { display: block; font-size: 14px; font-weight: 600; margin: 14px 0 6px; }
.form-card input, .form-card textarea { width: 100%; border: 1px solid var(--line); border-radius: 11px; padding: 12px 14px; font-size: 15px; outline: 0; font-family: inherit; transition: .2s; background: #fdfcf9; }
.form-card input:focus, .form-card textarea:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(184,147,90,.18); }
.form-card .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-card button { margin-top: 18px; width: 100%; border: 0; cursor: pointer; padding: 14px; border-radius: 12px; font-weight: 700; font-size: 16px; background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; transition: .2s; }
.form-card button:hover { filter: brightness(1.06); }
.form-note { font-size: 13px; color: var(--muted); margin-top: 10px; }
.form-ok { background: #eef7ef; border: 1px solid #b6e0c2; color: #1d7a45; padding: 12px 14px; border-radius: 10px; font-size: 14px; margin-top: 14px; display: none; }

/* ---------- 页脚 ---------- */
.footer { background: linear-gradient(160deg, #1c1a17 0%, #2e2920 100%); color: #cdc4b2; padding: 64px 0 28px; }
.footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #f3ead6; font-size: 16px; margin-bottom: 16px; }
.footer a { color: #cdc4b2; font-size: 14px; display: block; padding: 5px 0; transition: .2s; }
.footer a:hover { color: var(--gold-light); }
.footer .brand .name, .footer .brand .name small { color: #f3ead6; }
.footer .desc { font-size: 14px; margin: 14px 0; max-width: 320px; color: #b3a892; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 36px; padding-top: 20px; text-align: center; font-size: 13px; color: #8c8270; }

/* ---------- 产品中心筛选 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.filter-bar .chip { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer; font-weight: 600; color: var(--ink-soft); transition: .2s; }
.filter-bar .chip.active, .filter-bar .chip:hover { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; border-color: transparent; }
.toolbar { display: flex; gap: 12px; margin-bottom: 26px; flex-wrap: wrap; }
.toolbar input { flex: 1; min-width: 220px; border: 1px solid var(--line); border-radius: 11px; padding: 12px 16px; font-size: 15px; outline: 0; background: #fdfcf9; }
.toolbar input:focus { border-color: var(--gold); }
.result-count { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.empty { text-align: center; padding: 60px 0; color: var(--muted); }
.btn-load { display: inline-block; border: 1px solid var(--gold); background: #fff; color: var(--gold-deep); font-weight: 700; padding: 12px 36px; border-radius: 999px; cursor: pointer; transition: .2s; font-size: 15px; }
.btn-load:hover { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; }
.btn-load:disabled { opacity: .6; cursor: default; }

/* ---------- 分页器（京东式：页码 + 共N页 + 到第N页） ---------- */
.pager { display: flex; justify-content: center; align-items: center; gap: 8px; flex-wrap: wrap; margin: 38px 0 8px; }
.pager .pg { min-width: 40px; height: 40px; padding: 0 14px; border: 1px solid var(--line); background: #fff; border-radius: 9px; cursor: pointer; font-weight: 600; color: var(--ink-soft); transition: .2s; font-size: 14px; font-family: inherit; }
.pager .pg:hover:not(:disabled):not(.active) { border-color: var(--gold); color: var(--gold-deep); }
.pager .pg.active { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; border-color: transparent; cursor: default; }
.pager .pg:disabled { opacity: .45; cursor: default; }
.pager .pg-ellipsis { color: var(--muted); padding: 0 2px; user-select: none; }
.pager .pg-total { color: var(--muted); font-size: 14px; margin: 0 4px 0 12px; white-space: nowrap; }
.pager .pg-jump { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 14px; margin-left: 8px; white-space: nowrap; }
.pager .pg-jump input { width: 58px; height: 38px; border: 1px solid var(--line); border-radius: 8px; text-align: center; font-size: 14px; outline: 0; background: #fdfcf9; font-family: inherit; }
.pager .pg-jump input:focus { border-color: var(--gold); }
.pager .pg-go { background: #fff; border-color: var(--gold); color: var(--gold-deep); }
.pager .pg-go:hover { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; border-color: transparent; }
@media (max-width: 640px) { .pager .pg-total, .pager .pg-jump { margin-left: 0; } }

/* 详情弹层 */
.modal-mask { position: fixed; inset: 0; background: rgba(28,26,23,.55); display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 20px; max-width: 560px; width: 100%; padding: 32px; position: relative; max-height: 86vh; overflow: auto; box-shadow: var(--shadow); }
.modal .close { position: absolute; top: 16px; right: 18px; font-size: 26px; cursor: pointer; color: var(--muted); border: 0; background: none; }
.modal h3 { font-size: 22px; margin-bottom: 6px; font-family: var(--serif); }
.modal .m-grade { color: var(--gold-deep); font-weight: 800; }
.modal dl { margin-top: 16px; }
.modal dl div { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.modal dl dt { flex: 0 0 90px; color: var(--muted); font-size: 14px; }
.modal dl dd { flex: 1; font-size: 14px; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 14px 22px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 32px; }
  .hero p.lead { font-size: 16px; }
  .hero-stats { gap: 22px; }
  .search-box { flex-wrap: wrap; }
  .search-box select { width: 100%; margin: 0 0 6px; }
  .search-box input { width: 100%; }
  .search-box button { width: 100%; padding: 14px; }
  .section { padding: 60px 0; }
  .sec-head h2 { font-size: 27px; }
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .form-card .row { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr; }
}

/* 移动端固定询盘栏（非详情页由 site.js 注入；详情页由 SSR 内联样式提供，此处统一兜底） */
.mob-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 120; display: flex; background: #fff;
  border-top: 1px solid var(--line); box-shadow: 0 -4px 16px rgba(28,26,23,.10); }
.mob-bar a { flex: 1; text-align: center; padding: 14px; font-weight: 800; text-decoration: none; color: #fff; }
.mob-bar .q { background: linear-gradient(135deg, var(--gold), var(--gold-deep)); }
.mob-bar .t { background: #2b2b2b; }
@media (min-width: 721px) { .mob-bar { display: none; } }
/* 移动端产品列表两列 */
@media (max-width: 720px) {
  #prodGrid, .rel-prod, .grid.grid-4#prodGrid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 英雄轮播（多张大图） ---------- */
.hero-carousel { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease;
  background-size: cover; background-position: center; background-image: linear-gradient(135deg, #efe7d6, #d9c293); }
.hero-slide.active { opacity: 1; }
.hero-slide::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(252,251,248,.80) 0%, rgba(246,241,231,.88) 55%, rgba(246,241,231,.95) 100%); }
.hero-inner { position: relative; z-index: 3; }
.car-dots { position: absolute; left: 50%; bottom: 30px; transform: translateX(-50%); display: flex; gap: 10px; z-index: 6; }
.car-dots button { width: 11px; height: 11px; border-radius: 50%; border: 0; cursor: pointer; background: rgba(156,122,66,.38); transition: .25s; padding: 0; }
.car-dots button.active { background: var(--gold-deep); width: 32px; border-radius: 6px; }
.car-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(156,122,66,.4); background: rgba(255,255,255,.72); color: var(--gold-deep); font-size: 22px; cursor: pointer;
  z-index: 6; display: grid; place-items: center; transition: .2s; backdrop-filter: blur(4px); }
.car-arrow:hover { background: #fff; box-shadow: var(--shadow-sm); }
.car-arrow.prev { left: 22px; } .car-arrow.next { right: 22px; }
@media (max-width: 720px) { .car-arrow { display: none; } }

/* ---------- 图片占位 / 封面 ---------- */
.img-cover { background-size: cover; background-position: center; background-repeat: no-repeat; }
.about-figure.has-img { background-image: var(--img); }
.about-figure.has-img .big { display: none; }
.product-thumb.has-img { background-image: var(--img); background-size: cover; background-position: center; }
.product-thumb.has-img .grade, .product-thumb.has-img .cat-badge { position: relative; z-index: 2; }
.news-cover.has-img { background-image: var(--img); background-size: cover; background-position: center; }
.news-cover.has-img svg { display: none; }

/* 类别卡片 / 应用领域卡片 图片位 */
.cat-card .cat-fig { display: none; }
.cat-card.has-img .cat-fig { display: block; height: 116px; border-radius: 12px; margin-bottom: 14px; background-image: var(--img); background-size: cover; background-position: center; }
.app-card .ai.has-img { background-image: var(--img); background-size: cover; background-position: center; }

/* 横向滚动展示带（形象大图） */
.showcase { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; }
.showcase .big-img { min-height: 320px; border-radius: var(--radius); position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-deep)); color: #fff; display: grid; place-items: center; }
.showcase .big-img .cap { position: absolute; left: 22px; bottom: 18px; font-family: var(--serif); font-size: 20px; text-shadow: 0 2px 10px rgba(0,0,0,.25); }
.showcase .side { display: grid; gap: 22px; }
.showcase .side .mini { border-radius: var(--radius); min-height: 149px; background: linear-gradient(135deg, #efe9dc, #ddd3c0); display: grid; place-items: center; color: var(--gold-deep); font-size: 26px; position: relative; overflow: hidden; }
.showcase .big-img.has-img, .showcase .side .mini.has-img { background-size: cover; background-position: center; }

/* ---------- 后台：轮播管理 ---------- */
.banner-row td .thumb { width: 96px; height: 40px; border-radius: 8px; background: linear-gradient(135deg, var(--gold-light), var(--gold)); background-size: cover; background-position: center; display: inline-block; vertical-align: middle; }

/* ---------- 服务流程 ---------- */
.process-steps { grid-template-columns: repeat(5, 1fr); }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 20px; text-align: center; position: relative; transition: .28s; }
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.step .num { width: 44px; height: 44px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 18px; font-family: var(--serif); color: #fff; background: linear-gradient(135deg, var(--gold), var(--gold-deep)); box-shadow: var(--shadow-sm); }
.step h3 { font-size: 16px; margin-bottom: 6px; font-family: var(--serif); }
.step p { color: var(--muted); font-size: 13px; }

/* ---------- 资质认证 ---------- */
.cert { display: flex; gap: 16px; align-items: flex-start; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); transition: .28s; }
.cert:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--gold-light); }
.cert .ci { width: 50px; height: 50px; flex: 0 0 50px; border-radius: 14px; background: linear-gradient(135deg, var(--gold-light), var(--gold)); display: grid; place-items: center; color: #fff; font-size: 22px; }
.cert h3 { font-size: 16px; margin-bottom: 4px; font-family: var(--serif); }
.cert p { color: var(--muted); font-size: 13px; }

/* ---------- 常见问题 FAQ ---------- */
.faq { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; transition: .2s; }
.faq-item.open { border-color: var(--gold-light); box-shadow: var(--shadow-sm); }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; background: none; border: 0; cursor: pointer; text-align: left; font-size: 16px; font-weight: 700; color: var(--ink); font-family: inherit; }
.faq-q i { flex: 0 0 26px; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--gold-soft); color: var(--gold-deep); font-style: normal; font-weight: 800; font-size: 18px; transition: .25s; }
.faq-item.open .faq-q i { transform: rotate(45deg); background: linear-gradient(135deg, var(--gold), var(--gold-deep)); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a p { padding: 0 22px 18px; color: var(--ink-soft); font-size: 14px; }
.faq-item.open .faq-a { max-height: 260px; }

@media (max-width: 980px) { .process-steps { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .process-steps { grid-template-columns: 1fr; } }

/* ========== 首页动效增强（参考 copper.dgyqgs.com） ========== */

/* 1. Banner 入场动画：内容依次从左淡入 */
@keyframes heroIn { from { opacity: 0; transform: translateX(-36px); } to { opacity: 1; transform: none; } }
.hero-inner > * { opacity: 0; animation: heroIn .9s cubic-bezier(.2,.7,.2,1) both; }
.hero-inner > *:nth-child(1) { animation-delay: .05s; }
.hero-inner > *:nth-child(2) { animation-delay: .18s; }
.hero-inner > *:nth-child(3) { animation-delay: .32s; }
.hero-inner > *:nth-child(4) { animation-delay: .46s; }
.hero-inner > *:nth-child(5) { animation-delay: .60s; }
.hero-inner > *:nth-child(6) { animation-delay: .74s; }
/* 铜色竖条生长（标题左侧） */
.hero h1 { position: relative; }
.hero h1::before { content: ""; position: absolute; left: -22px; top: 8px; bottom: 8px; width: 4px; border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), var(--gold-deep)); transform: scaleY(0); transform-origin: top;
  animation: barGrow .8s .55s cubic-bezier(.2,.7,.2,1) forwards; }
@keyframes barGrow { to { transform: scaleY(1); } }
@media (max-width: 860px) { .hero h1::before { display: none; } }

/* 1b. Ken Burns 背景缓慢放大 */
@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.08); } }
.hero-slide.active { animation: kenburns 8s ease-out both; }

/* 3. 数字滚动计数由 JS 驱动，无 CSS */

/* 4. 滚动进入：卡片/子项错峰淡入上移 */
.grid.reveal > *, .process-steps.reveal > * { opacity: 0; transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.grid.reveal.in > *, .process-steps.reveal.in > * { opacity: 1; transform: none; }
.grid.reveal.in > *:nth-child(2), .process-steps.reveal.in > *:nth-child(2) { transition-delay: .07s; }
.grid.reveal.in > *:nth-child(3), .process-steps.reveal.in > *:nth-child(3) { transition-delay: .14s; }
.grid.reveal.in > *:nth-child(4), .process-steps.reveal.in > *:nth-child(4) { transition-delay: .21s; }
.grid.reveal.in > *:nth-child(5), .process-steps.reveal.in > *:nth-child(5) { transition-delay: .28s; }
.grid.reveal.in > *:nth-child(6), .process-steps.reveal.in > *:nth-child(6) { transition-delay: .35s; }
.grid.reveal.in > *:nth-child(7), .process-steps.reveal.in > *:nth-child(7) { transition-delay: .42s; }
.grid.reveal.in > *:nth-child(8), .process-steps.reveal.in > *:nth-child(8) { transition-delay: .49s; }

/* 5a. 产品系列卡：hover 图片放大 + 露出简介 */
.cat-card.has-img .cat-fig { background-size: 112% auto; transition: background-size .8s cubic-bezier(.2,.7,.2,1); }
.cat-card.has-img:hover .cat-fig { background-size: 126% auto; }
.cat-card.has-img p { max-height: 0; opacity: 0; margin: 0; overflow: hidden; transition: all .45s ease; }
.cat-card.has-img:hover p { max-height: 120px; opacity: 1; margin: 10px 0 14px; }
/* 5b. 服务图标 3D 翻转 */
.feat-card .fi { transition: transform .7s cubic-bezier(.3,.7,.3,1); }
.feat-card:hover .fi { transform: rotateY(360deg); }
/* 5c. 按钮/链接箭头滑动 */
.cat-card .more, .product-card .more { transition: transform .3s ease; }
.cat-card:hover .more, .product-card:hover .more { transform: translateX(6px); }

/* 6. 导航栏：滚动收缩 + 菜单下划线展开 */
.header { transition: box-shadow .3s ease; }
.nav { transition: height .3s ease; }
.header.shrink { box-shadow: 0 6px 24px rgba(28,26,23,.10); }
.header.shrink .nav { height: 58px; }
.nav-links a::after { content: ""; position: absolute; left: 16px; right: 16px; bottom: 3px; height: 2px; border-radius: 1px;
  background: linear-gradient(90deg, var(--gold), var(--gold-deep)); transform: scaleX(0); transform-origin: left; transition: transform .3s ease; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

/* 7a. CTA 按钮脉冲呼吸 */
@keyframes ctaPulse { 0%, 100% { box-shadow: 0 8px 18px rgba(156,122,66,.30), 0 0 0 0 rgba(156,122,66,.38); }
  50% { box-shadow: 0 8px 18px rgba(156,122,66,.30), 0 0 0 12px rgba(156,122,66,0); } }
#heroCta { animation: ctaPulse 2.4s ease-in-out infinite; }
/* 7b. 向下滚动提示：显示/隐藏过渡 */
.scroll-cue { transition: opacity .4s ease; }
.scroll-cue.hide { opacity: 0; pointer-events: none; }

/* 动效整体降级（无障碍：用户偏好减少动画） */
@media (prefers-reduced-motion: reduce) {
  .hero-inner > * { opacity: 1; animation: none; }
  .hero h1::before { animation: none; transform: scaleY(1); }
  .hero-slide.active { animation: none; }
  #heroCta { animation: none; }
  .grid.reveal > *, .process-steps.reveal > * { opacity: 1; transform: none; transition: none; }
  .scroll-cue .dot::after { animation: none; }
}