*,*::before,*::after{box-sizing:border-box}
:root{
  /* 纸感中性色 */
  --paper:#FBFAF7; --paper-2:#F4F1EA; --paper-3:#EDE9E0;
  --ink:#17150F; --ink-2:#3C3830; --muted:#6E6A60; --muted-2:#948F84;
  --line:#E3DFD6; --line-2:#D2CCBF; --bg:#FBFAF7; --soft:#F4F1EA;
  /* 深墨青主色 + 黄铜点缀 */
  --brand:#1B3A4B; --brand-600:#245066; --brand-dark:#122934; --brand-soft:#EDF2F4;
  --brass:#9C7B4E; --brass-soft:#F6F0E6;
  --radius:6px; --radius-sm:4px; --radius-lg:12px; --maxw:1160px;
  --sh-1:0 1px 2px rgba(23,21,15,.05);
  --sh-2:0 8px 24px rgba(23,21,15,.08);
  --sh-3:0 18px 48px rgba(23,21,15,.12);
  --ease:cubic-bezier(.2,.8,.2,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brass)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:2px}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
@media(max-width:640px){.wrap{padding:0 18px}}

/* ---------- 顶部导航 ---------- */
.site-header{border-bottom:1px solid var(--line);background:rgba(251,250,247,.86);position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px)}
.site-header .wrap{display:flex;align-items:center;gap:24px;min-height:72px;flex-wrap:wrap}
.brand{font-weight:600;font-size:16px;color:var(--ink);white-space:nowrap;letter-spacing:-.01em;line-height:1.4;padding:8px 0}
.brand:hover{color:var(--brand)}
.brand small{display:block;font-weight:400;font-size:11.5px;color:var(--muted-2);letter-spacing:.02em;margin-top:1px}
nav.main{margin-left:auto;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
nav.main::-webkit-scrollbar{display:none}
nav.main a{padding:8px 14px;border-radius:var(--radius-sm);color:var(--ink-2);font-size:14px;white-space:nowrap;
  transition:all .2s var(--ease);letter-spacing:.01em}
nav.main a:hover{background:var(--paper-2);color:var(--brand)}
.header-tel{font-size:13px;color:var(--brand);font-weight:600;white-space:nowrap;letter-spacing:.02em;
  border:1px solid var(--line-2);border-radius:999px;padding:7px 16px;transition:all .2s var(--ease)}
.header-tel:hover{border-color:var(--brass);background:var(--brass-soft);color:var(--brass)}
@media(max-width:860px){.header-tel{display:none}nav.main{order:3;width:100%;margin-left:0;padding-bottom:10px}}

/* ---------- 通用排版元件 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:11.5px;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:var(--brass);margin:0 0 22px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--brass);display:block}
.display{font-size:clamp(32px,4.4vw,56px);line-height:1.14;letter-spacing:-.035em;font-weight:600;margin:0 0 22px;color:var(--ink)}
.lead{font-size:16.5px;line-height:1.85;color:var(--ink-2);margin:0 0 28px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;
  border-radius:var(--radius-sm);font-weight:600;font-size:14.5px;letter-spacing:.01em;
  transition:all .22s var(--ease);border:1px solid transparent;cursor:pointer}
.btn.primary{background:var(--ink);color:#FBFAF7}
.btn.primary:hover{background:var(--brand);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn.ghost{border-color:var(--line-2);color:var(--ink);background:transparent}
.btn.ghost:hover{border-color:var(--ink);background:var(--ink);color:#FBFAF7}
.btn.brass{background:var(--brass);color:#fff}
.btn.brass:hover{background:#87683F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}

/* ---------- 首屏 ---------- */
.hero{padding:92px 0 84px;border-bottom:1px solid var(--line);position:relative;overflow:hidden;
  background:radial-gradient(900px 420px at 88% -12%,#F1EDE3 0%,rgba(241,237,227,0) 68%),var(--paper)}
.hero .wrap{display:grid;grid-template-columns:1.02fr .98fr;gap:64px;align-items:center}
.hero-copy{max-width:560px}
.hero h1{font-size:clamp(30px,3.9vw,50px);line-height:1.16;letter-spacing:-.035em;font-weight:600;
  margin:0 0 24px;color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--brand);position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.28em;
  background:var(--brass-soft);z-index:-1}
.hero .lead{font-size:16px;line-height:1.88;color:var(--ink-2);margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}

/* 首屏数据 */
.facts{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:22px}
.fact{padding-right:28px;margin-right:28px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0;margin-right:0;padding-right:0}
.fact b{display:block;font-size:19px;font-weight:600;color:var(--ink);letter-spacing:-.02em;line-height:1.3}
.fact span{display:block;font-size:12px;color:var(--muted-2);margin-top:3px;letter-spacing:.03em}
@media(max-width:520px){.fact{padding-right:18px;margin-right:18px}.fact b{font-size:16px}}

/* 首屏图像 */
.hero-visual{position:relative}
.hero-frame{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--sh-3);background:var(--paper-3)}
.hero-frame img{width:100%;aspect-ratio:4/3.15;object-fit:cover;display:block}
.hero-frame::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(23,21,15,.08);border-radius:var(--radius);pointer-events:none}
.hero-badge{position:absolute;left:-22px;bottom:38px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 18px;box-shadow:var(--sh-2);min-width:150px}
.hero-badge b{display:block;font-size:13px;color:var(--ink);font-weight:600;letter-spacing:.01em}
.hero-badge span{display:block;font-size:11.5px;color:var(--muted);margin-top:3px;letter-spacing:.04em}
@media(max-width:1000px){
  .hero{padding:64px 0 56px}
  .hero .wrap{grid-template-columns:1fr;gap:44px}
  .hero-copy{max-width:none}
  .hero-badge{left:auto;right:14px;bottom:14px}
}

/* ---------- 深色数据带 ---------- */
.stats-band{background:var(--ink);color:#F5F2EC;margin:0}
.stats-band .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:36px 26px 34px;border-left:1px solid rgba(245,242,236,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:34px;font-weight:600;letter-spacing:-.03em;line-height:1;
  font-variant-numeric:tabular-nums}
.stat b small{font-size:14px;font-weight:400;opacity:.55;margin-left:3px;letter-spacing:0}
.stat span{display:block;font-size:12.5px;opacity:.55;margin-top:10px;letter-spacing:.06em}
@media(max-width:760px){
  .stats-band .wrap{grid-template-columns:repeat(2,1fr)}
  .stat{padding:26px 0;border-left:0;border-top:1px solid rgba(245,242,236,.12)}
  .stat:nth-child(n+3){border-top:1px solid rgba(245,242,236,.12)}
  .stat:nth-child(even){padding-left:22px;border-left:1px solid rgba(245,242,236,.12)}
  .stat b{font-size:26px}
}

/* ---------- 区块基础 ---------- */
.section{padding:80px 0}
.section.alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 0 40px;flex-wrap:wrap}
.sec-head-l{max-width:640px}
.section h2{font-size:clamp(22px,2.4vw,30px);margin:0;letter-spacing:-.03em;color:var(--ink);font-weight:600;line-height:1.25}
.section .sub{color:var(--muted);font-size:14.5px;margin:10px 0 0;line-height:1.75;max-width:620px}
.count{font-size:12px;color:var(--muted-2);border:1px solid var(--line-2);border-radius:999px;
  padding:3px 11px;line-height:1.7;white-space:nowrap;letter-spacing:.03em}

/* ---------- 核心能力（编辑式编号列表） ---------- */
.caps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-2)}
.cap{padding:32px 34px 36px 0;border-right:1px solid var(--line);position:relative}
.cap:last-child{border-right:0;padding-right:0}
.cap:nth-child(3n){border-right:0}
.cap em{display:block;font-style:normal;font-size:11.5px;font-weight:600;letter-spacing:.18em;
  color:var(--brass);margin-bottom:14px}
.cap h3{font-size:17px;margin:0 0 10px;font-weight:600;color:var(--ink);letter-spacing:-.01em}
.cap p{margin:0;font-size:14px;color:var(--muted);line-height:1.8}
@media(max-width:860px){.caps{grid-template-columns:1fr}.cap{border-right:0;border-bottom:1px solid var(--line);padding:26px 0}.cap:last-child{border-bottom:0}}

/* ---------- 产品实拍网格 ---------- */
.showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.showcase-item{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--paper-3);display:block;color:#fff}
.showcase-item img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;
  transition:transform .75s var(--ease)}
.showcase-item:hover img{transform:scale(1.05)}
.showcase-cap{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;
  background:linear-gradient(to top,rgba(18,16,12,.72),rgba(18,16,12,0));
  font-size:13px;font-weight:500;letter-spacing:.02em;color:#fff}
.showcase-item:hover{color:#fff}
@media(max-width:760px){.showcase{grid-template-columns:repeat(2,1fr);gap:10px}}

/* ---------- 工厂实景 ---------- */
.factory-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.factory-grid.rev{grid-template-columns:.85fr 1.15fr}
.factory-media img{width:100%;border-radius:var(--radius);display:block;box-shadow:var(--sh-2)}
.factory-media.stack{display:grid;gap:14px;grid-template-columns:1fr 1fr}
.factory-media.stack img{aspect-ratio:1/1;object-fit:cover;box-shadow:var(--sh-1)}
.factory-copy h2{margin-bottom:16px}
.factory-copy p{font-size:15px;line-height:1.9;color:var(--ink-2);margin:0 0 14px}
.factory-list{list-style:none;padding:0;margin:22px 0 0;border-top:1px solid var(--line)}
.factory-list li{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.factory-list li b{flex:0 0 118px;font-weight:600;color:var(--ink);font-size:13.5px;letter-spacing:.01em}
@media(max-width:900px){.factory-grid,.factory-grid.rev{grid-template-columns:1fr;gap:32px}}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.grid.single{grid-template-columns:1fr}
.grid.duo{grid-template-columns:repeat(2,1fr)}
@media(max-width:680px){.grid,.grid.duo{grid-template-columns:1fr}}
.card{display:block;position:relative;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;background:#fff;color:inherit;transition:all .25s var(--ease)}
.card:hover{border-color:var(--line-2);box-shadow:var(--sh-2);transform:translateY(-2px);text-decoration:none;color:inherit}
.card h3{font-size:15.5px;margin:0 0 9px;color:var(--ink);line-height:1.55;font-weight:600;letter-spacing:-.005em}
.card:hover h3{color:var(--brand)}
.card p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:12.5px;
  font-weight:600;color:var(--brass);letter-spacing:.06em;opacity:0;transform:translateX(-5px);transition:all .25s var(--ease)}
.card:hover .more{opacity:1;transform:translateX(0)}
.grid.single .card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:26px;padding:32px 36px;
  background:linear-gradient(120deg,#fff 0%,#FBFAF7 100%)}
.grid.single .card h3{font-size:19px;margin-bottom:10px}
.grid.single .card p{-webkit-line-clamp:2;font-size:14px;max-width:820px}
.grid.single .card .more{opacity:1;transform:none;margin-top:12px}
.grid.single .card::after{content:"→";font-size:20px;color:var(--brass);opacity:.6;transition:all .25s var(--ease)}
.grid.single .card:hover::after{opacity:1;transform:translateX(5px)}
@media(max-width:680px){.grid.single .card{grid-template-columns:1fr;padding:24px}.grid.single .card::after{display:none}}

/* ---------- 正文页 ---------- */
main.article{padding:40px 0 12px}
.crumb{font-size:12.5px;color:var(--muted-2);margin-bottom:18px;letter-spacing:.02em}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brass)}
article{max-width:762px}
article h1{font-size:clamp(24px,2.6vw,32px);line-height:1.34;margin:0 0 14px;letter-spacing:-.03em;font-weight:600;color:var(--ink)}
.meta{color:var(--muted-2);font-size:12.5px;margin-bottom:32px;padding-bottom:20px;border-bottom:1px solid var(--line);letter-spacing:.02em}
article h2{font-size:20px;margin:44px 0 14px;padding-left:13px;border-left:2px solid var(--brass);
  line-height:1.5;font-weight:600;color:var(--ink);letter-spacing:-.015em}
article h3{font-size:16.5px;margin:28px 0 10px;font-weight:600;color:var(--ink-2)}
article p{margin:0 0 16px;line-height:1.9}
article ul,article ol{margin:0 0 18px;padding-left:22px}
article li{margin-bottom:8px}
article table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:14px;display:block;overflow-x:auto;
  border-top:1px solid var(--line-2)}
article th,article td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
article th{background:var(--paper-2);font-weight:600;white-space:nowrap;color:var(--ink-2);font-size:13px;letter-spacing:.02em}
article blockquote{margin:0 0 20px;padding:16px 20px;background:var(--brass-soft);border-left:2px solid var(--brass);
  color:var(--ink-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-size:14.5px}
article code{background:var(--paper-2);padding:2px 6px;border-radius:3px;font-size:13.5px;color:var(--brand-dark)}
article hr{border:0;border-top:1px solid var(--line);margin:36px 0}
article img{max-width:100%;height:auto;border-radius:var(--radius);margin:8px 0 18px;display:block;background:var(--paper-2)}
article figure{margin:0 0 26px}
article figcaption{font-size:12.5px;color:var(--muted-2);margin-top:8px;letter-spacing:.02em}
.shot{margin:0 0 30px}
.shot img{width:100%;border-radius:var(--radius);box-shadow:var(--sh-1)}
.shot figcaption{font-size:13px;color:var(--muted);margin-top:10px;line-height:1.65}
.gallery{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:0 0 28px}
.gallery figure{margin:0}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-sm);
  background:var(--paper-2);transition:transform .5s var(--ease)}
.gallery figure:hover img{transform:scale(1.02)}
.gallery figcaption{font-size:12px;color:var(--muted-2);margin-top:8px;text-align:center}
.hero-img{margin:0 0 26px}
.hero-img img{width:100%;max-height:400px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--sh-1)}

/* ---------- FAQ ---------- */
.faq{margin:0}
.faq h2{font-size:20px;margin:0 0 22px;border:0;padding:0;font-weight:600;letter-spacing:-.02em}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq details:first-of-type{border-top:1px solid var(--line-2)}
.faq summary{cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;display:flex;gap:14px;
  align-items:flex-start;padding:20px 0;color:var(--ink);transition:color .2s var(--ease)}
.faq summary:hover{color:var(--brand)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"";flex:0 0 7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--brass);opacity:.85}
.faq summary::after{content:"+";margin-left:auto;font-size:19px;font-weight:400;color:var(--muted-2);
  line-height:1;transition:transform .25s var(--ease)}
.faq details[open] summary::after{transform:rotate(45deg);color:var(--brass)}
.faq details p{margin:0;padding:0 0 22px 21px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- 行动号召 ---------- */
.cta{position:relative;background:var(--ink);color:#F5F2EC;border-radius:var(--radius-lg);
  padding:56px 56px;margin:80px 0 0;overflow:hidden}
.cta::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(156,123,78,.22),transparent 68%);pointer-events:none}
.cta-inner{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.cta h3{margin:0 0 12px;font-size:clamp(21px,2.4vw,28px);color:#F5F2EC;font-weight:600;letter-spacing:-.025em;line-height:1.3}
.cta p{margin:0;color:rgba(245,242,236,.66);font-size:14.5px;line-height:1.85;max-width:520px}
.cta-side{text-align:right}
.cta .tel{display:block;font-size:clamp(24px,2.8vw,32px);font-weight:600;color:#F5F2EC;
  letter-spacing:.01em;margin-bottom:6px;font-variant-numeric:tabular-nums;text-decoration:none}
.cta .tel:hover{color:var(--brass)}
.cta .who{font-size:12.5px;color:rgba(245,242,236,.5);margin-bottom:22px;letter-spacing:.04em}
.cta .btn{background:var(--brass);color:#fff;border-color:transparent}
.cta .btn:hover{background:#B08A57;color:#fff;text-decoration:none;transform:translateY(-1px)}
@media(max-width:820px){
  .cta{padding:38px 26px;margin-top:56px;border-radius:var(--radius)}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-side{text-align:left}
}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--paper-2);margin-top:0;padding:56px 0 40px;
  font-size:14px;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:48px;margin-bottom:36px}
.footer-brand{font-size:15.5px;color:var(--ink);font-weight:600;margin:0 0 12px;letter-spacing:-.01em}
.footer-brand small{display:block;font-weight:400;font-size:12px;color:var(--muted-2);margin-top:4px;letter-spacing:.04em}
.footer-col h4{font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);margin:0 0 14px}
.footer-col a,.footer-col p{display:block;font-size:13.5px;color:var(--ink-2);margin:0 0 8px;line-height:1.7}
.footer-col a:hover{color:var(--brass)}
.site-footer .nap{color:var(--ink-2);margin:0 0 7px;line-height:1.75}
.site-footer .nap strong{color:var(--brand);font-weight:600}
.footer-bottom{border-top:1px solid var(--line-2);padding-top:22px;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.site-footer .copy{font-size:12px;color:var(--muted-2);margin:0;letter-spacing:.02em}
.site-footer .icp{font-size:12px;color:var(--muted-2);margin:0}
.site-footer .icp a{color:var(--muted-2)}
.site-footer .icp a:hover{color:var(--brass)}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr;gap:28px}.site-footer{padding:40px 0 30px}}

/* ---------- 相关阅读 ---------- */
.related{margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.related h2{font-size:15px;margin:0 0 16px;border:0;padding:0;font-weight:600}
.related h2::before{content:none}

/* ---------- 动效降级 ---------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}