:root{
  --ink:#EDE8DC;
  --ink-soft:#C8B188;
  --paper:#121212;
  --paper-2:#1B1B1B;
  --copper:#D9A95F;
  --copper-deep:#B8893F;
  --copper-line:#E5BE83;
  --moss:#33413A;
  --line:#2C2C2C;
  --white:#1A1A1A;
  --text-on-dark:#EDE8DC;
  --text-on-dark-soft:#C8B188;
  --radius:10px;
  --shadow:0 10px 30px rgba(0,0,0,.4);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--paper);color:var(--ink);line-height:1.7;font-size:15px}
h1,h2,h3,.serif{font-family:"Songti SC","SimSun","Noto Serif SC",serif}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ===== 顶栏 ===== */
.topbar{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.96);color:var(--text-on-dark);backdrop-filter:blur(6px)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Songti SC","SimSun",serif;font-weight:700;font-size:18px;letter-spacing:.5px}
.brand-mark{min-width:38px;height:34px;padding:0 6px;border-radius:8px;background:var(--copper);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:1px}
.nav{display:none;gap:26px;align-items:center}
.nav a{font-size:14px;color:var(--text-on-dark-soft);transition:color .2s}
.nav a:hover{color:var(--white)}
.nav a.active{color:var(--text-on-dark-soft);border-bottom:2px solid var(--copper);padding-bottom:4px}
.nav-cta{display:flex;align-items:center;gap:12px}
.tel-link{color:var(--copper-line);font-weight:600;font-size:14px;white-space:nowrap}
.menu-btn{display:flex;flex-direction:column;gap:5px;padding:8px}
.menu-btn span{width:22px;height:2px;background:var(--text-on-dark);transition:.25s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;background:#101010;border-top:1px solid rgba(237,232,220,.13)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:14px 20px;color:var(--text-on-dark-soft);border-bottom:1px solid rgba(237,232,220,.06);font-size:15px}
.mobile-nav a.active{color:var(--text-on-dark-soft);background:rgba(217,169,95,.18)}

/* ===== 视图 ===== */
.view{display:none}
.view.active{display:block}

/* ===== Hero ===== */
.hero{position:relative;min-height:74vh;display:flex;align-items:center;color:var(--white);overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,8,8,.5),rgba(8,8,8,.78))}
.hero-inner{position:relative;z-index:2;padding-block:96px 72px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--copper-line);border:1px solid rgba(217,169,95,.45);padding:6px 14px;border-radius:99px;margin-bottom:20px}
.hero h1{font-size:34px;line-height:1.25;font-weight:700;max-width:640px;margin-bottom:16px;color:#EDC989;text-shadow:0 1px 2px rgba(0,0,0,.45),0 4px 22px rgba(0,0,0,.55)}
.hero-sub{font-size:16px;color:rgba(239,235,225,.92);max-width:560px;margin-bottom:28px;text-shadow:0 1px 3px rgba(0,0,0,.5)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:13px 26px;border-radius:8px;font-size:15px;font-weight:600;transition:all .2s}
.btn-copper{background:var(--copper);color:var(--white)}
.btn-copper:hover{background:var(--copper-deep)}
.btn-ghost{border:1px solid rgba(229,190,131,.65);color:#F1D9A8}
.btn-ghost:hover{background:rgba(229,190,131,.14)}
.hero-facts{position:relative;z-index:2;display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:rgba(237,232,220,.13);border:1px solid rgba(237,232,220,.13);border-radius:var(--radius);overflow:hidden;margin-top:40px;max-width:720px}
.hero-fact{background:rgba(8,8,8,.85);padding:16px 18px}
.hero-fact b{display:block;font-family:"Songti SC",serif;font-size:17px;color:#F1D9A8;margin-bottom:2px}
.hero-fact span{font-size:12.5px;color:rgba(229,190,131,.88)}

/* ===== 区块通用 ===== */
.section{padding:64px 0}
.section-alt{background:var(--paper-2)}
.section-dark{background:#0B0B0B;color:#EDE8DC}
.sec-head{margin-bottom:36px;max-width:720px}
.kicker{font-size:13px;letter-spacing:2px;color:var(--copper);font-weight:600;margin-bottom:10px}
.sec-head h2{font-size:26px;line-height:1.3;margin-bottom:10px}
.sec-head p{color:var(--ink-soft);font-size:15px}
.section-dark .sec-head h2{color:#F1D9A8}
.section-dark .sec-head p{color:rgba(229,190,131,.78)}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}

/* ===== 业务概览 ===== */
.pillars{display:grid;grid-template-columns:1fr;gap:14px}
.pillar{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:var(--white);transition:transform .2s,box-shadow .2s}
.pillar:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.pillar .pnum{font-family:"Songti SC",serif;font-size:13px;color:var(--copper);letter-spacing:1px}
.pillar h3{font-size:18px;margin:8px 0 8px}
.pillar p{font-size:13.5px;color:var(--ink-soft)}

/* ===== 品类卡 ===== */
.cats{display:grid;grid-template-columns:repeat(1,1fr);gap:16px}
.cat-card{border-radius:var(--radius);overflow:hidden;background:var(--white);border:1px solid var(--line);display:flex;flex-direction:column}
.cat-card img{width:100%;height:190px;object-fit:cover;object-position:center}
.cat-body{padding:16px 18px 20px}
.cat-body h3{font-size:17px;margin-bottom:6px}
.cat-body p{font-size:13.5px;color:var(--ink-soft);margin-bottom:10px}
.cat-tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;padding:3px 10px;border-radius:99px;background:var(--paper-2);color:var(--ink-soft)}

/* ===== 案例 ===== */
.case-feature{border-radius:var(--radius);overflow:hidden;position:relative;margin-bottom:24px}
.case-feature img{width:100%;height:300px;object-fit:cover;object-position:center}
.case-cap{position:absolute;left:0;right:0;bottom:0;padding:56px 20px 18px;background:linear-gradient(180deg,rgba(30,38,34,0),rgba(12,16,14,.94));color:#fff}
.case-cap b{font-size:17px;display:block;margin-bottom:4px}
.case-cap span{font-size:13px;color:var(--text-on-dark-soft)}
.case-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:16px}
.case-grid img{width:100%;height:200px;object-fit:cover;object-position:center;border-radius:var(--radius);border:1px solid var(--line)}
.case-grid.case-duo{grid-template-columns:repeat(2,1fr)}
.case-duo img{height:auto;object-fit:contain;background:#0d1210;border-radius:var(--radius);cursor:zoom-in}
.case-trio{display:grid;grid-template-columns:repeat(1,1fr);gap:14px;margin-top:18px}
.case-trio img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line)}
@media (min-width:640px){.case-trio{grid-template-columns:repeat(3,1fr)}}
.lightbox{position:fixed;inset:0;background:rgba(8,11,9,.94);display:none;align-items:center;justify-content:center;z-index:99998;padding:3vh 3vw;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:94vw;max-height:94vh;object-fit:contain;border-radius:10px;box-shadow:0 24px 70px rgba(0,0,0,.6)}
@media (max-width:639px){.case-grid.case-duo{grid-template-columns:repeat(1,1fr)}}

/* ===== 荣誉 ===== */
.honors{display:grid;grid-template-columns:1fr;gap:14px}
.honor{border:1px solid #E5BE83;border-radius:var(--radius);padding:20px 22px;background:var(--copper);box-shadow:0 8px 26px rgba(217,169,95,.18)}
.honor b{font-family:"Songti SC",serif;font-size:16px;color:#1A1A1A;display:block;margin-bottom:4px}
.honor span{font-size:13px;color:rgba(18,18,18,.72)}

/* ===== 工厂车间 ===== */
.workshop-band{position:relative;overflow:hidden;margin-top:44px;border-radius:var(--radius);border:1px solid #2C2C2C}
.workshop-band img{display:block;width:100%;height:340px;object-fit:cover;filter:saturate(.8) brightness(.85)}
.workshop-band::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,8,8,0) 25%,rgba(8,8,8,.78) 100%);pointer-events:none}
.workshop-cap{position:absolute;left:28px;right:28px;bottom:24px;z-index:2}
.workshop-cap .kicker{color:#E5BE83}
.workshop-cap h3{color:#FFF;margin:8px 0 6px;font-size:clamp(18px,2.4vw,26px)}
.workshop-cap p{color:rgba(237,232,220,.84);font-size:14px;line-height:1.7;margin:0}
@media(max-width:600px){.workshop-band img{height:240px}.workshop-cap{left:20px;right:20px;bottom:16px}}

/* ===== 文创 ===== */
.creative-split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
.creative-split img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}
.creative-split h3{font-size:20px;margin-bottom:12px}
.creative-split p{color:var(--ink-soft);font-size:14.5px;margin-bottom:12px}
.creative-list{list-style:none;display:grid;gap:10px;margin-top:16px}
.creative-list li{padding-left:22px;position:relative;font-size:14px;color:var(--ink-soft)}
.creative-list li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;background:var(--copper)}
.wc-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:26px}
@media (min-width:760px){.wc-grid{grid-template-columns:repeat(3,1fr)}}
.wc-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.wc-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.wc-card img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;cursor:zoom-in;border-bottom:1px solid var(--line)}
.wc-body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.wc-body h4{font-size:17px;color:var(--ink);margin-bottom:8px;letter-spacing:.5px}
.wc-meta{font-size:12px;color:var(--copper);margin-bottom:10px;letter-spacing:.4px}
.wc-body p{font-size:13.5px;line-height:1.9;color:var(--ink-soft)}
.wc-tag{margin-top:auto;padding-top:14px;font-size:11.5px;color:var(--ink-soft)}
.wc-tag span{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:4px 10px}
/* ===== 产品详情页 ===== */
.wk-back{display:inline-block;font-size:12.5px;color:var(--ink-soft);margin-bottom:26px;text-decoration:none;border:1px solid var(--line);border-radius:99px;padding:7px 15px;transition:.2s}
.wk-back:hover{color:var(--copper);border-color:var(--copper)}
.wk-inner{max-width:900px;margin:0 auto}
.wk-kicker{font-size:11.5px;letter-spacing:3px;color:var(--copper);margin-bottom:12px}
.wk-h1{font-size:32px;line-height:1.3;margin-bottom:14px;letter-spacing:1px}
.wk-lead{font-size:15px;color:var(--ink-soft);line-height:1.9}
.wk-hero{margin:28px 0 0}
.wk-hero img{width:100%;border-radius:var(--radius);border:1px solid var(--line);display:block;cursor:zoom-in}
.wk-hero.narrow img{max-width:560px;margin:0 auto}
.wk-cap{font-size:12px;color:#7d7466;margin:10px 0 0;line-height:1.7}
.wk-sec{margin-top:46px}
.wk-sec h3{font-size:17px;color:var(--copper);margin-bottom:14px;letter-spacing:.5px;font-weight:400}
.wk-sec p{font-size:14.5px;line-height:2;color:var(--ink-soft);margin-bottom:12px}
.wk-g2,.wk-g3{display:grid;grid-template-columns:1fr;gap:12px;margin:16px 0 0}
@media(min-width:700px){.wk-g2{grid-template-columns:1fr 1fr}.wk-g3{grid-template-columns:repeat(3,1fr)}}
.wk-g2 img:only-child{grid-column:1/-1}
.wk-g2 img,.wk-g3 img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;border:1px solid var(--line);display:block;cursor:zoom-in}
.wk-spec{margin-top:30px;border-top:1px solid var(--line)}
.wk-spec div{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);font-size:13.5px;line-height:1.8}
.wk-spec b{font-weight:400;color:#8a8172}
.wk-spec span{color:var(--ink)}
.wk-tags{margin-top:22px;font-size:12px;color:var(--ink-soft)}
.wk-tags span{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:5px 12px;margin:0 8px 8px 0}
.wk-nav{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:24px;border-top:1px solid var(--line);font-size:13.5px}
.wk-nav a{color:var(--copper);text-decoration:none}
.wk-nav .dim{color:#6f6759}
.wc-more{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--copper);text-decoration:none;letter-spacing:.4px}
.wc-more:hover{text-decoration:underline}

/* ===== 关于 ===== */
.about-grid{display:grid;grid-template-columns:1fr;gap:28px}
.about-text p{margin-bottom:14px;font-size:14.5px;color:var(--ink-soft)}
.about-text p strong{color:var(--ink)}
.steps{display:grid;grid-template-columns:1fr;gap:12px;margin-top:8px}
.step{border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;background:var(--white)}
.step .snum{font-family:"Songti SC",serif;font-size:13px;color:var(--copper);letter-spacing:1px}
.step b{display:block;font-size:15.5px;margin:6px 0 4px}
.step p{font-size:13px;color:var(--ink-soft)}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px}
.contact-info{display:grid;gap:16px}
.contact-item{border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;background:var(--white)}
.contact-item .clabel{font-size:12.5px;color:var(--copper);letter-spacing:1px;font-weight:600;margin-bottom:4px}
.contact-item .cval{font-size:16px;font-weight:600}
.contact-item .csub{font-size:13px;color:var(--ink-soft);margin-top:4px}
.form-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--white)}
.form-card h3{font-size:19px;margin-bottom:16px}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13.5px;margin-bottom:6px;color:var(--ink-soft)}
.form-row input,.form-row textarea{width:100%;padding:12px 14px;font-size:16px;border:1px solid var(--line);border-radius:8px;background:var(--white);font-family:inherit;color:var(--ink)}
.form-row input:focus,.form-row textarea:focus{outline:2px solid var(--copper);outline-offset:-1px}
.form-row textarea{min-height:100px;resize:vertical}

/* ===== 页脚 ===== */
.footer{background:#101010;color:rgba(229,190,131,.78);padding:48px 0 30px;font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;margin-bottom:30px}
.footer h4{font-family:"Songti SC",serif;color:#F1D9A8;font-size:16px;margin-bottom:12px}
.footer ul{list-style:none;display:grid;gap:8px}
.footer a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid rgba(237,232,220,.12);padding-top:18px;display:flex;flex-direction:column;gap:8px;font-size:12.5px}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%) translateY(20px);background:#101010;color:var(--white);padding:13px 22px;border-radius:99px;font-size:14px;opacity:0;pointer-events:none;transition:.3s;z-index:100;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== 断点 ===== */
@media(min-width:600px){
  .hero-facts{grid-template-columns:repeat(4,1fr)}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .cats{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .honors{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:768px){
  .nav{display:flex}
  .menu-btn{display:none}
  .hero h1{font-size:46px}
  .hero-inner{padding-block:120px 84px}
  .section{padding:80px 0}
  .sec-head h2{font-size:32px}
}
@media(min-width:900px){
  .pillars{grid-template-columns:repeat(4,1fr)}
  .cats{grid-template-columns:repeat(3,1fr)}
  .case-grid{grid-template-columns:repeat(3,1fr)}
  .honors{grid-template-columns:repeat(3,1fr)}
  .creative-split{grid-template-columns:1.1fr .9fr}
  .about-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(4,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}
}