/* ===========================================================
   苍南县鸿科工艺品有限公司 · 品牌官网样式
   风格：深墨 + 鎏金 + 宣纸白，传统工艺规制与现代排版结合
   =========================================================== */

:root{
  --ink:#0c0b09;
  --ink-2:#151310;
  --ink-3:#1e1b16;
  --paper:#f7f4ee;
  --paper-2:#efe9df;
  --paper-3:#e5ded0;
  --gold:#c8a15a;
  --gold-l:#e8d3a2;
  --gold-d:#9d7a31;
  --copper:#9c6b3f;
  --line-dark:rgba(200,161,90,.22);
  --line-light:rgba(12,11,9,.10);
  --tx-dark:#f2ede2;
  --tx-dark-2:#b9b1a2;
  --tx-light:#1d1a15;
  --tx-light-2:#5d564b;
  --font-serif:"Songti SC","STSong","Source Han Serif SC","Noto Serif SC","SimSun","宋体",Georgia,serif;
  --font-sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --wrap:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--tx-light);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;
  letter-spacing:.02em;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .3s var(--ease)}
a:hover{color:var(--gold)}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;margin:0;line-height:1.35;letter-spacing:.04em}
p{margin:0 0 1.05em}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 26px}
.wrap-narrow{max-width:900px}
.section{padding:110px 0;position:relative}
.dark{background:var(--ink);color:var(--tx-dark)}
.dark h1,.dark h2,.dark h3{color:#f7f2e7}
.dark h4{color:#f7f2e7}
.dark .svc{background:rgba(255,255,255,.03);border-color:var(--line-dark)}
.dark .svc p{color:var(--tx-dark-2)}
.gold-text{
  background:linear-gradient(112deg,#f0dcae 0%,var(--gold) 38%,#a97c30 66%,#e6cf9c 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.noise::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='.6'/></svg>");
}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line-dark),transparent);border:0;margin:0}
.dark .hairline{background:linear-gradient(90deg,transparent,var(--line-dark),transparent)}
.light-line{height:1px;background:linear-gradient(90deg,transparent,var(--line-light),transparent);border:0}

/* 竖排装饰字 */
.vertical{
  writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.42em;
  font-family:var(--font-serif);font-size:14px;color:var(--gold);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  padding:20px 0;transition:all .45s var(--ease);
  background:linear-gradient(180deg,rgba(8,7,6,.62),rgba(8,7,6,0));
}
.site-header.solid{
  padding:12px 0;background:rgba(11,10,8,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark);
}
.header-inner{display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:14px;flex-shrink:0}
.brand-seal{
  width:52px;height:52px;flex:0 0 52px;border-radius:4px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,#d8b978,#a97c30 55%,#7d5a1f);
  box-shadow:0 6px 18px rgba(0,0,0,.35),inset 0 0 0 1px rgba(255,255,255,.25);
  font-family:var(--font-serif);font-size:22px;line-height:1;color:#2a1d06;
  letter-spacing:0;font-weight:700;
}
.brand-text strong{
  display:block;font-family:var(--font-serif);font-weight:600;
  font-size:22px;letter-spacing:.08em;color:#f4efe3;line-height:1.2;
}
.brand-text span.b-suf{display:inline;font-size:inherit;letter-spacing:inherit;color:inherit;text-transform:none;margin:0}
.brand-text span{
  display:block;font-size:10px;letter-spacing:.34em;color:var(--gold);
  text-transform:uppercase;margin-top:3px;
}
.nav{margin-left:auto;display:flex;align-items:center;gap:0}
.nav a{
  position:relative;padding:9px 13px;font-size:15.4px;color:#e3dccc;letter-spacing:.06em;white-space:nowrap;
}
.nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  transform:scaleX(0);transition:transform .35s var(--ease);
}
.nav a:hover::after,.nav a.on::after{transform:scaleX(1)}
.nav a.on{color:var(--gold-l)}
.header-tel{
  display:inline-flex;align-items:center;gap:8px;flex-shrink:0;
  padding:9px 18px;border:1px solid var(--line-dark);border-radius:2px;
  font-family:var(--font-serif);font-size:14px;letter-spacing:.08em;color:var(--gold-l);
  transition:all .35s var(--ease);
}
.header-tel:hover{background:rgba(200,161,90,.12);border-color:var(--gold);color:#fff}
.m-call{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;background:none;border:1px solid var(--line-dark);
  border-radius:2px;cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;right:11px;height:1.5px;background:var(--gold-l);transition:all .3s var(--ease);
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 首屏 ============ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:150px 0 90px;background:var(--ink);overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 600px at 78% 32%,rgba(200,161,90,.13),transparent 62%),
    radial-gradient(700px 500px at 8% 82%,rgba(156,107,63,.11),transparent 65%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center;
}
.hero-eyebrow{
  display:flex;align-items:center;gap:16px;margin-bottom:26px;
  font-size:12px;letter-spacing:.4em;color:var(--gold);text-transform:uppercase;
}
.hero-eyebrow i{display:block;width:56px;height:1px;background:var(--gold);opacity:.6}
.hero h1{
  font-size:clamp(30px,4.2vw,56px);line-height:1.22;letter-spacing:.06em;
  color:#faf6ec;margin-bottom:6px;
}
.hero h1 em{
  font-style:normal;display:block;margin-top:.22em;
  font-size:.46em;line-height:1.5;letter-spacing:.1em;
}
.hero-sub{
  font-family:var(--font-serif);font-size:clamp(15px,1.6vw,20px);color:var(--gold-l);
  letter-spacing:.22em;margin:18px 0 26px;
}
.hero-desc{color:var(--tx-dark-2);font-size:16px;max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:34px}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 34px;border-radius:2px;
  font-size:15px;letter-spacing:.12em;border:1px solid transparent;cursor:pointer;
  transition:all .4s var(--ease);font-family:var(--font-serif);
}
.btn-gold{
  background:linear-gradient(140deg,#e0c384,var(--gold) 45%,#a97c30);color:#231803;
  box-shadow:0 10px 26px rgba(200,161,90,.22);
}
.btn-gold:hover{color:#231803;transform:translateY(-2px);box-shadow:0 16px 34px rgba(200,161,90,.34)}
.btn-ghost{border-color:var(--line-dark);color:var(--gold-l)}
.btn-ghost:hover{border-color:var(--gold);background:rgba(200,161,90,.1);color:#fff}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  padding:7px 15px;border:1px solid var(--line-dark);border-radius:100px;
  font-size:12.5px;color:var(--tx-dark-2);letter-spacing:.06em;
}
.hero-visual{position:relative}
.frame{
  position:relative;background:linear-gradient(160deg,#fffdf8,#f2ece0);
  padding:18px;box-shadow:0 40px 80px rgba(0,0,0,.55);
}
.frame::before{
  content:"";position:absolute;inset:0;border:1px solid rgba(200,161,90,.55);pointer-events:none;
}
.frame img{width:100%;height:auto}
.frame-cap{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:12px 4px 0;font-family:var(--font-serif);font-size:13.5px;color:#4c4438;letter-spacing:.12em;
}
.frame-cap i{font-style:normal;color:var(--gold-d);font-size:12px;letter-spacing:.2em}
.hero-badge{
  position:absolute;left:-30px;top:-30px;width:112px;height:112px;border-radius:50%;
  background:radial-gradient(circle at 32% 28%,#f0dcae,var(--gold) 46%,#8d6720);
  display:grid;place-items:center;text-align:center;color:#2b1e06;
  font-family:var(--font-serif);font-size:12.5px;line-height:1.35;letter-spacing:.06em;
  box-shadow:0 16px 40px rgba(0,0,0,.4);
}
.hero-badge b{display:block;font-size:22px;letter-spacing:.02em}

/* 数字带 */
.stats{border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);background:#0a0907}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:44px 26px;border-right:1px solid var(--line-dark);text-align:center}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-family:var(--font-serif);font-size:clamp(30px,3.4vw,46px);
  line-height:1.1;letter-spacing:.02em;white-space:nowrap;
}
.stat b i{font-style:normal;font-size:.5em;margin-left:4px;color:var(--gold)}
.stat > span{display:block;margin-top:10px;font-size:13.5px;color:var(--tx-dark-2);letter-spacing:.16em}
.stat b span{color:inherit;letter-spacing:.02em}

/* ============ 通用标题 ============ */
.sec-head{margin-bottom:58px;max-width:860px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;max-width:960px}
.sec-index{
  display:inline-flex;align-items:center;gap:14px;margin-bottom:18px;
  font-family:var(--font-serif);font-size:13px;letter-spacing:.34em;color:var(--gold);
}
.sec-index i{display:block;width:40px;height:1px;background:var(--gold);opacity:.55}
.sec-head h2{font-size:clamp(24px,2.9vw,38px);letter-spacing:.06em;margin-bottom:16px}
.sec-head p{color:var(--tx-light-2);font-size:15.6px;margin:0}
.dark .sec-head p{color:var(--tx-dark-2)}

/* ============ 产品类别 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.cat-card{
  background:#fff;border:1px solid var(--line-light);overflow:hidden;
  display:flex;flex-direction:column;transition:all .5s var(--ease);
}
.cat-card:hover{transform:translateY(-6px);box-shadow:0 26px 54px rgba(28,22,12,.13);border-color:rgba(200,161,90,.6)}
.cat-media{position:relative;overflow:hidden;background:var(--paper-2)}
.cat-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .8s var(--ease)}
.cat-card:hover .cat-media img{transform:scale(1.045)}
.cat-media em{
  position:absolute;left:0;top:0;font-style:normal;padding:7px 14px;
  background:rgba(12,11,9,.86);color:var(--gold-l);font-size:12px;letter-spacing:.18em;
  font-family:var(--font-serif);
}
.cat-body{padding:28px 26px 30px;display:flex;flex-direction:column;flex:1}
.cat-body h3{font-size:20px;margin-bottom:12px;letter-spacing:.08em}
.cat-body p{color:var(--tx-light-2);font-size:14.6px;margin-bottom:18px}
.cat-list{margin-bottom:22px}
.cat-list li{
  position:relative;padding-left:18px;font-size:14px;color:#3d372e;line-height:2;
}
.cat-list li::before{
  content:"";position:absolute;left:0;top:13px;width:6px;height:6px;
  border:1px solid var(--gold);transform:rotate(45deg);
}
.more{
  margin-top:auto;font-family:var(--font-serif);font-size:14px;letter-spacing:.16em;color:var(--gold-d);
  display:inline-flex;align-items:center;gap:8px;
}
.more::after{content:"→";transition:transform .35s var(--ease)}
.cat-card:hover .more::after{transform:translateX(5px)}

/* ============ 工艺时间轴 ============ */
.craft-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:22px}
.step{
  padding:30px 20px 26px;border-left:1px solid var(--line-dark);position:relative;
}
.step:first-child{border-left:0}
.step em{
  font-style:normal;display:block;font-family:var(--font-serif);font-size:22px;color:var(--gold);
  margin-bottom:14px;letter-spacing:.05em;
}
.step h4{font-size:16px;margin-bottom:10px;letter-spacing:.1em}
.step p{font-size:13.4px;color:var(--tx-dark-2);line-height:1.8;margin:0}
.step::before{
  content:"";position:absolute;left:-3px;top:26px;width:5px;height:5px;border-radius:50%;
  background:var(--gold);opacity:.75;
}
.step:first-child::before{display:none}

.craft-split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;margin-top:70px}
.craft-split .frame{box-shadow:0 30px 60px rgba(0,0,0,.45)}

/* ============ 图库 ============ */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gitem{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line-light);cursor:zoom-in;
}
.gitem img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .8s var(--ease)}
.gitem:hover img{transform:scale(1.05)}
.gitem figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 16px 14px;
  background:linear-gradient(180deg,rgba(12,11,9,0),rgba(12,11,9,.88));
  color:#f1ece0;font-size:13.6px;letter-spacing:.08em;font-family:var(--font-serif);
  transform:translateY(6px);opacity:.92;transition:all .45s var(--ease);
}
.gitem:hover figcaption{transform:translateY(0);opacity:1}
.gitem figure{margin:0}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{
  border:1px solid var(--line-dark);padding:32px 28px;background:rgba(255,255,255,.02);
  transition:all .45s var(--ease);
}
.case-card:hover{background:rgba(200,161,90,.07);border-color:var(--gold);transform:translateY(-5px)}
.case-card em{
  font-style:normal;font-family:var(--font-serif);font-size:12.5px;letter-spacing:.26em;color:var(--gold);
}
.case-card h3{font-size:19px;margin:14px 0 12px;letter-spacing:.08em}
.case-card p{font-size:14px;color:var(--tx-dark-2);margin:0}

/* ============ 服务流程 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.svc{background:#fff;border:1px solid var(--line-light);padding:30px 26px;transition:all .45s var(--ease)}
.svc:hover{border-color:rgba(200,161,90,.65);box-shadow:0 20px 44px rgba(28,22,12,.10)}
.svc b{font-family:var(--font-serif);font-size:26px;color:var(--gold);display:block;margin-bottom:14px}
.svc h4{font-size:17px;margin-bottom:10px;letter-spacing:.08em}
.svc p{font-size:14px;color:var(--tx-light-2);margin:0}

/* ============ 关于 / 双栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split .txt p{font-size:15.6px}
.fact-list{margin-top:26px;border-top:1px solid var(--line-dark)}
.fact-list li{
  display:flex;gap:18px;padding:15px 0;border-bottom:1px solid var(--line-dark);font-size:14.6px;
}
.fact-list b{
  flex:0 0 118px;font-family:var(--font-serif);font-weight:600;color:var(--gold);letter-spacing:.1em;
}
.light .fact-list{border-color:var(--line-light)}
.light .fact-list li{border-color:var(--line-light)}
.light .fact-list b{color:var(--gold-d)}

/* ============ CTA / 联系 ============ */
.cta-band{
  background:linear-gradient(120deg,#0c0b09,#1d1810 55%,#0c0b09);
  border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
}
.cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;padding:66px 0}
.cta-inner h2{font-size:clamp(23px,2.6vw,34px);letter-spacing:.07em;margin-bottom:12px}
.cta-inner p{color:var(--tx-dark-2);margin:0;font-size:15.4px}
.cta-tel{
  font-family:var(--font-serif);font-size:clamp(24px,3vw,38px);color:var(--gold-l);letter-spacing:.04em;
  white-space:nowrap;
}
.cta-tel small{display:block;font-size:12.5px;letter-spacing:.3em;color:var(--tx-dark-2);margin-bottom:8px}

.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px}
.info-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line-light);
}
.info-list b{
  flex:0 0 92px;font-family:var(--font-serif);font-weight:600;color:var(--gold-d);letter-spacing:.12em;font-size:14px;
}
.info-list span{font-size:15px;color:#332e26}
.form-card{background:#fff;border:1px solid var(--line-light);padding:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--tx-light-2);letter-spacing:.12em;margin-bottom:8px;font-family:var(--font-serif)}
.field input,.field textarea,.field select{
  width:100%;padding:13px 14px;border:1px solid var(--line-light);background:#fbfaf7;
  border-radius:2px;transition:all .3s var(--ease);font-size:15px;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:0;border-color:var(--gold);background:#fff;box-shadow:0 0 0 3px rgba(200,161,90,.12);
}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.6px;color:#8a8377;margin:14px 0 0}
.form-ok{
  display:none;margin-top:16px;padding:14px 16px;border:1px solid rgba(200,161,90,.5);
  background:rgba(200,161,90,.09);font-size:14px;color:#6b5316;
}
.form-ok.show{display:block}

/* ============ 面包屑 / 页头 ============ */
.page-head{
  padding:180px 0 84px;background:var(--ink);position:relative;overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 420px at 72% 40%,rgba(200,161,90,.14),transparent 64%);
}
.page-head .wrap{position:relative}
.page-head h1{font-size:clamp(25px,3vw,38px);letter-spacing:.07em;color:#faf6ec;margin-bottom:16px}
.page-head p{color:var(--tx-dark-2);max-width:760px;font-size:15.8px;margin:0}
.crumb{margin-top:24px;font-size:13px;color:#8e8879;letter-spacing:.1em}
.crumb a:hover{color:var(--gold)}
.crumb span{margin:0 8px;opacity:.5}

/* ============ 正文内容块 ============ */
.prose h2{font-size:clamp(22px,2.5vw,32px);margin:0 0 22px;letter-spacing:.06em}
.prose h3{font-size:19px;margin:34px 0 14px;letter-spacing:.08em}
.prose p{font-size:15.8px;color:#3a352c}
.dark .prose p{color:var(--tx-dark-2)}
.prose ul.dot li{position:relative;padding-left:20px;margin-bottom:10px;font-size:15.4px;color:#3a352c}
.prose ul.dot li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border:1px solid var(--gold);transform:rotate(45deg);
}
.card-soft{background:#fff;border:1px solid var(--line-light);padding:34px 32px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.kw-block{
  border-top:1px solid var(--line-light);margin-top:20px;padding-top:28px;
  display:flex;flex-wrap:wrap;gap:10px;
}
.kw-block a{
  padding:8px 16px;border:1px solid var(--line-light);font-size:13.4px;color:#4b453a;
  border-radius:100px;transition:all .35s var(--ease);
}
.kw-block a:hover{border-color:var(--gold);background:rgba(200,161,90,.1);color:var(--gold-d)}

/* ============ 页脚 ============ */
.site-footer{background:#080706;color:var(--tx-dark-2);padding:76px 0 30px;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.35fr .8fr 1fr;gap:52px;padding-bottom:46px}
.footer-brand .brand-text strong{font-size:19px;letter-spacing:.08em}
.footer-brand p{font-size:14px;color:#8f897c;margin:20px 0 0;max-width:420px}
.footer-col h4{
  font-family:var(--font-serif);font-size:15px;color:#f1ebdd;letter-spacing:.14em;margin-bottom:20px;
}
.footer-col li{margin-bottom:11px;font-size:14px;color:#9a9488}
.footer-col li a:hover{color:var(--gold)}
.footer-kw{
  border-top:1px solid var(--line-dark);padding:24px 0;font-size:12.8px;line-height:2.1;color:#6f6a5f;
}
.footer-kw a{color:#87816f;display:inline-block;white-space:nowrap}
.footer-kw a::after{content:"·";margin:0 9px;color:rgba(200,161,90,.45)}
.footer-kw a:last-child::after{display:none}
.footer-kw a:hover{color:var(--gold)}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:12.8px;color:#6f6a5f;
}
.footer-bottom a{color:#87816f}

/* ============ 灯箱 ============ */
.lightbox{
  position:fixed;inset:0;z-index:300;background:rgba(6,5,4,.94);
  display:none;align-items:center;justify-content:center;padding:40px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1180px,94vw);max-height:84vh;object-fit:contain;background:#fff;padding:12px}
.lightbox-cap{
  position:absolute;bottom:28px;left:0;right:0;text-align:center;color:#ded7c8;
  font-family:var(--font-serif);font-size:14.5px;letter-spacing:.12em;
}
.lb-btn{
  position:absolute;top:50%;transform:translateY(-50%);width:56px;height:56px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.04);color:var(--gold-l);
  font-size:22px;cursor:pointer;transition:all .3s var(--ease);border-radius:2px;
}
.lb-btn:hover{background:rgba(200,161,90,.16)}
.lb-prev{left:24px}
.lb-next{right:24px}
.lb-close{position:absolute;top:24px;right:24px;width:48px;height:48px;font-size:24px}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}
.reveal.d2{transition-delay:.2s}
.reveal.d3{transition-delay:.3s}

/* ============ 响应式 ============ */
@media(max-width:1420px){
  .brand-text span{display:none}
  .nav a{padding:9px 10px;font-size:14.6px}
  .header-tel{padding:8px 13px;font-size:14.2px}
}
@media(max-width:1200px){
  .header-tel{display:none}
  .nav{margin-left:auto}
}
@media(max-width:1100px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:640px}
  .craft-steps{grid-template-columns:repeat(3,1fr)}
  .step:nth-child(4){border-left:0}
  .step:nth-child(4)::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px}
  .cat-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:860px){
  .nav-toggle{display:block}
  .header-tel{display:none}
  .nav{
    position:fixed;inset:0 0 0 auto;width:min(320px,86vw);background:rgba(10,9,7,.98);
    flex-direction:column;align-items:stretch;gap:0;padding:96px 20px 30px;
    transform:translateX(100%);transition:transform .45s var(--ease);
    border-left:1px solid var(--line-dark);overflow-y:auto;
  }
  .nav.open{transform:none}
  .nav a{padding:16px 4px;font-size:18px;letter-spacing:.08em;border-bottom:1px solid rgba(200,161,90,.12)}
  .nav a::after{display:none}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--line-dark)}
  .stat:nth-child(2n){border-right:0}
  .split,.contact-grid,.craft-split,.grid-2{grid-template-columns:1fr;gap:34px}
  .gallery{grid-template-columns:repeat(2,1fr);gap:16px}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding:52px 0}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:78px 0}
  .page-head{padding:140px 0 62px}
  .hero{padding:130px 0 70px;min-height:auto}
  .hero-badge{width:94px;height:94px;left:auto;right:-8px;bottom:-18px;font-size:11.5px}
  .hero-badge b{font-size:18px}
  .form-card{padding:26px 22px}
  .prose h2,.sec-head h2{letter-spacing:.04em}
}
@media(max-width:620px){
  .wrap{padding:0 18px}
  .brand{flex-shrink:1;gap:10px}
  .brand-seal{width:44px;height:44px;flex:0 0 44px;font-size:18px}
  .brand-text{min-width:0}
  .site-header .brand-text span.b-suf{display:none}
  .brand-text strong{font-size:clamp(21px,6.3vw,26px);letter-spacing:.03em;line-height:1.15;white-space:nowrap}
  .footer-brand .brand-text strong{font-size:19px;letter-spacing:.04em;white-space:normal}
  .cat-grid,.case-grid,.svc-grid,.craft-steps,.grid-3,.form-row{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  /* 移动端底部一键拨打 */
  .m-call{
    display:flex;align-items:center;justify-content:center;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:999;height:56px;
    background:linear-gradient(135deg,#e2c184,#c8a15a 55%,#a67c2e);
    color:#241a08;font-family:var(--font-serif);font-weight:700;font-size:17px;letter-spacing:.08em;
    box-shadow:0 -8px 24px rgba(0,0,0,.35);
  }
  .m-call svg{flex:0 0 auto}
  body{padding-bottom:56px}
  .step{border-left:0;padding:22px 0 22px 20px;border-bottom:1px solid var(--line-dark)}
  .step::before{left:0;top:36px;width:4px;height:16px;border-radius:0}
  .frame{padding:12px}
  .frame-cap{flex-direction:column;align-items:flex-start;gap:4px;font-size:12.6px}
  .hero h1{font-size:clamp(26px,8.4vw,34px);line-height:1.32}
  .hero-sub{letter-spacing:.14em;line-height:1.7}
  .btn{width:100%;justify-content:center}
  .lightbox{padding:16px}
  .lb-prev{left:8px}.lb-next{right:8px}
  .lb-btn{width:44px;height:44px;font-size:18px}
}