:root{
  --paper:#F3ECDC; --paper2:#EADFC6; --cream:#FBF6EC;
  --ink:#2E2418; --ink2:#584833; --muted:#7A684D;
  --cane:#B07E3E; --cane-deep:#8A5E2C; --cane-soft:#D8BC8A; --cane-pale:#EAD9B8;
  --moss:#74805F; --line:#DCC9A4;
  --deep:#2B2116; --deep2:#3A2D1E;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:var(--sans);color:var(--ink);background:var(--paper);
  line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;
}
/* 纸张噪点层 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;position:relative;z-index:1}
/* ===== 导航 ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s ease,box-shadow .3s ease}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.nav.scrolled{background:rgba(243,236,220,.94);box-shadow:0 1px 0 var(--line)}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{height:34px;width:auto;display:block;flex:none}
.brand .logo-dark{display:none}
.nav.scrolled .brand .logo-light{display:none}
.nav.scrolled .brand .logo-dark{display:block}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:rgba(255,255,255,.92);letter-spacing:1px;padding:6px 2px;position:relative}
.nav.scrolled .nav-links a{color:var(--ink2)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1.5px;background:var(--cane);transition:width .25s ease}
.nav-links a:hover::after{width:100%}
.nav-links a.active::after{width:100%}
.nav:not(.scrolled) .nav-links a.active{color:var(--cane-soft)}
.nav.scrolled .nav-links a.active{color:var(--cane-deep)}
.mobile-menu a.active{color:var(--cane-soft)}
.burger{display:none;background:none;border:1px solid rgba(255,255,255,.5);border-radius:6px;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:18px;height:1.5px;background:#fff;transition:.25s}
.nav.scrolled .burger span{background:var(--ink)}
.mobile-menu{display:none;position:fixed;top:72px;left:0;right:0;z-index:99;background:var(--cream);border-bottom:1px solid var(--line);padding:12px 28px 20px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:12px 4px;font-size:16px;color:var(--ink2);border-bottom:1px dashed var(--line)}
.mobile-menu a:last-child{border-bottom:none}
/* ===== Hero ===== */
.hero{position:relative;min-height:92vh;min-height:720px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:center right}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(38,28,17,.78) 0%,rgba(38,28,17,.45) 38%,rgba(38,28,17,.08) 70%,rgba(38,28,17,.18) 100%)}
.hero-content{position:relative;z-index:2;max-width:640px;padding:120px 0 90px}
.hero-tag{display:inline-flex;align-items:center;gap:10px;color:var(--cane-soft);font-size:14px;letter-spacing:3px;margin-bottom:22px}
.hero-tag::before{content:"";width:34px;height:1px;background:var(--cane-soft)}
.hero h1{font-family:var(--serif);color:#FBF4E6;font-weight:400;font-size:clamp(38px,5.4vw,64px);line-height:1.28;letter-spacing:4px;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--cane-soft)}
.hero-sub{color:rgba(251,244,230,.86);font-size:17px;line-height:1.9;max-width:520px;margin-bottom:34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 30px;font-size:15px;letter-spacing:2px;border-radius:2px;cursor:pointer;transition:.25s;border:1px solid transparent}
.btn-primary{background:var(--cane-deep);color:#FBF4E6}
.btn-primary:hover{background:var(--cane)}
.btn-ghost{border-color:rgba(251,244,230,.6);color:#FBF4E6}
.btn-ghost:hover{background:rgba(251,244,230,.12)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(251,244,230,.65);font-size:12px;letter-spacing:2px;writing-mode:vertical-rl}
/* ===== 章节通用 ===== */
.section{padding:96px 0;position:relative}
.section.alt{background:var(--cream)}
.sec-head{margin-bottom:48px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px;flex-wrap:wrap}
.sec-kicker{font-size:13px;letter-spacing:4px;color:var(--cane-deep);margin-bottom:12px;display:flex;align-items:center;gap:12px}
.sec-kicker::after{content:"";width:46px;height:1px;background:var(--cane-soft)}
.sec-title{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);font-weight:400;letter-spacing:3px;color:var(--ink)}
.sec-desc{max-width:420px;color:var(--muted);font-size:15px;line-height:1.9}
/* ===== 01 渊源 ===== */
.origin-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.origin-text p{color:var(--ink2);font-size:16.5px;margin-bottom:20px;text-align:justify}
.origin-badge{margin-top:26px;padding:20px 24px;background:var(--cane-pale);border-left:3px solid var(--cane-deep);border-radius:0 6px 6px 0}
.origin-badge b{font-family:var(--serif);font-weight:400;font-size:18px;color:var(--cane-deep);display:block;margin-bottom:6px;letter-spacing:1px}
.origin-badge span{font-size:14px;color:var(--ink2)}
.origin-imgs{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.origin-imgs .big{grid-row:span 2;align-self:stretch}
.origin-imgs figure{overflow:hidden;border-radius:6px}
.origin-imgs img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.origin-imgs figure:hover img{transform:scale(1.04)}
.origin-imgs figcaption{font-size:12.5px;color:var(--muted);padding:8px 4px 0;letter-spacing:1px}
/* ===== 02 工艺 ===== */
.craft-top{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:56px}
.craft-panel{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:32px 30px}
.craft-panel h3{font-family:var(--serif);font-size:21px;font-weight:400;letter-spacing:2px;color:var(--cane-deep);margin-bottom:18px}
.material-list{display:grid;grid-template-columns:1fr 1fr;gap:12px 22px}
.material-list li{padding-left:18px;position:relative;font-size:15px;color:var(--ink2)}
.material-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border:1.5px solid var(--cane);border-radius:50%}
.craft-note{font-size:14.5px;color:var(--muted);margin-top:16px;line-height:1.9}
/* 工艺流程时间轴 */
.process-title{text-align:center;margin-bottom:36px}
.process-title h3{font-family:var(--serif);font-size:22px;font-weight:400;letter-spacing:3px}
.process-title p{font-size:14px;color:var(--muted);margin-top:8px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:28px 22px;position:relative}
.step-num{font-family:var(--serif);font-size:15px;color:var(--cane-soft);letter-spacing:2px;margin-bottom:14px}
.step h4{font-family:var(--serif);font-size:19px;font-weight:400;letter-spacing:2px;color:var(--ink);margin-bottom:10px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}
.step:not(:last-child)::after{content:"→";position:absolute;right:-17px;top:50%;transform:translateY(-50%);color:var(--cane);font-size:18px;z-index:2}
/* 手法 + 特性 */
.craft-bottom{display:grid;grid-template-columns:1fr 1.35fr;gap:40px;margin-top:48px}
.weave-methods{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:24px 22px;align-self:start}
.weave-methods h3,.feature-col h3{font-family:var(--serif);font-size:19px;font-weight:400;letter-spacing:2px;margin-bottom:18px;color:var(--ink)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud span{padding:8px 18px;border:1px solid var(--cane-soft);border-radius:999px;font-size:14px;color:var(--cane-deep);background:var(--cane-pale)}
.features{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:20px 22px}
.feature b{display:block;font-family:var(--serif);font-weight:400;font-size:17px;letter-spacing:1px;color:var(--cane-deep);margin-bottom:8px}
.feature span{font-size:13.5px;color:var(--muted);line-height:1.8}
/* ===== 03 品类臻选 ===== */
.cat-block{margin-bottom:54px}
.cat-block:last-child{margin-bottom:0}
.cat-head{display:flex;align-items:baseline;gap:18px;margin-bottom:24px;flex-wrap:wrap}
.cat-name{font-family:var(--serif);font-size:24px;font-weight:400;letter-spacing:3px;color:var(--cane-deep)}
.cat-line{flex:1;height:1px;background:var(--line);min-width:60px}
.cat-note{font-size:14px;color:var(--muted)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease}
.product-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(90,62,28,.12)}
.product-photo{height:264px;overflow:hidden;background:var(--cane-pale)}
.product-photo img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.product-card:hover .product-photo img{transform:scale(1.05)}
.product-body{padding:18px 20px 22px}
.product-body h4{font-family:var(--serif);font-size:18px;font-weight:400;letter-spacing:1px;margin-bottom:8px;color:var(--ink)}
.product-body p{font-size:13.5px;color:var(--muted);line-height:1.8}
/* ===== 04 匠心图鉴 ===== */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery-grid figure{overflow:hidden;border-radius:6px;background:var(--cream);border:1px solid var(--line)}
.gallery-grid img{width:100%;height:230px;object-fit:cover;transition:transform .5s ease}
.gallery-grid figure:hover img{transform:scale(1.045)}
/* ===== 05 产业价值 ===== */
.industry{background:var(--deep);color:#EFE4CF}
.industry .sec-kicker{color:var(--cane-soft)}
.industry .sec-title{color:#F6EDD9}
.industry .sec-desc{color:rgba(239,228,207,.72)}
.industry-hero{border-radius:8px;overflow:hidden;margin-bottom:44px;border:1px solid rgba(216,188,138,.25)}
.industry-hero img{width:100%;height:330px;object-fit:cover;object-position:center 40%}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:44px}
.stat{border:1px solid rgba(216,188,138,.28);border-radius:8px;padding:30px 26px;background:rgba(255,255,255,.03)}
.stat-num{font-family:var(--serif);font-size:clamp(30px,3.2vw,42px);color:var(--cane-soft);letter-spacing:1px;font-variant-numeric:tabular-nums;margin-bottom:10px}
.stat-label{font-size:15px;color:rgba(239,228,207,.85);letter-spacing:1px}
.stat-sub{font-size:13px;color:rgba(239,228,207,.55);margin-top:6px}
.model-note{max-width:880px;border-left:2px solid var(--cane);padding:6px 0 6px 22px;color:rgba(239,228,207,.82);font-size:15.5px;line-height:2}
.model-note b{color:var(--cane-soft);font-weight:400;font-family:var(--serif);letter-spacing:1px}
/* ===== 页脚 ===== */
footer{background:var(--deep2);color:rgba(239,228,207,.72);padding:60px 0 26px;border-top:1px solid rgba(216,188,138,.18)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:40px;margin-bottom:38px}
.foot-brand .foot-logo{height:40px;width:auto;display:block;margin-bottom:14px}
.foot-brand p{font-size:14px;line-height:1.9}
.foot-col h5{font-family:var(--serif);font-weight:400;font-size:16px;color:var(--cane-soft);letter-spacing:2px;margin-bottom:16px}
.foot-col a{display:block;font-size:14px;padding:5px 0;color:rgba(239,228,207,.72)}
.foot-col a:hover{color:var(--cane-soft)}
.foot-col li{font-size:14px;padding:5px 0;line-height:1.8}
.foot-bottom{border-top:1px solid rgba(216,188,138,.18);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(239,228,207,.5)}
/* 语言切换 */
.lang-switch{background:none;border:1px solid rgba(255,255,255,.55);color:rgba(255,255,255,.92);border-radius:999px;padding:5px 15px;font-size:13px;letter-spacing:1px;cursor:pointer;font-family:var(--sans);transition:.25s;flex:none}
.lang-switch:hover{background:rgba(255,255,255,.12)}
.nav.scrolled .lang-switch{border-color:var(--line);color:var(--ink2)}
.nav.scrolled .lang-switch:hover{background:var(--cane-pale)}
.mobile-menu .lang-switch{display:block;margin-top:14px;border:1px solid var(--line);background:var(--cream);color:var(--cane-deep);padding:10px 16px;border-radius:6px;text-align:left;font-size:15px}
/* ===== 视图路由 ===== */
.page{display:none}
.page.active{display:block}
/* ===== 二级页页头 ===== */
.page-head{background:var(--cream);padding:128px 0 60px;border-bottom:1px solid var(--line)}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.crumb a{color:var(--cane-deep)}
.crumb a:hover{text-decoration:underline}
.crumb .sep{color:var(--line)}
.page-head h1{font-family:var(--serif);font-size:clamp(30px,4vw,44px);font-weight:400;letter-spacing:3px;margin-bottom:16px;color:var(--ink)}
.page-head .lead{max-width:660px;color:var(--ink2);font-size:16px;line-height:1.9}
/* ===== 两栏图文 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .split-text p{color:var(--ink2);margin-bottom:18px;text-align:justify}
.split figure{overflow:hidden;border-radius:8px}
.split figure img{width:100%;height:340px;object-fit:cover;border-radius:8px}
/* ===== 时间轴 ===== */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.tl-node{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:26px 24px}
.tl-node .yr{font-family:var(--serif);font-size:22px;color:var(--cane-deep);letter-spacing:2px;margin-bottom:10px}
.tl-node h4{font-family:var(--serif);font-size:18px;font-weight:400;margin-bottom:8px;color:var(--ink)}
.tl-node p{font-size:13.5px;color:var(--muted);line-height:1.85}
/* 价值观 */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:28px 24px}
.value-card b{display:block;font-family:var(--serif);font-size:19px;color:var(--cane-deep);font-weight:400;letter-spacing:1px;margin-bottom:10px}
.value-card p{font-size:14px;color:var(--muted);line-height:1.85}
/* intro 原料四卡 */
.mat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mat-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:22px 18px}
.mat-card b{font-family:var(--serif);font-size:17px;color:var(--cane-deep);font-weight:400;display:block;margin-bottom:8px}
.mat-card p{font-size:13px;color:var(--muted);line-height:1.8}
/* 手法详解 */
.weave-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.weave-item{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:20px 22px}
.weave-item b{font-family:var(--serif);color:var(--cane-deep);font-weight:400;display:block;margin-bottom:6px;font-size:16px}
.weave-item span{font-size:13.5px;color:var(--muted);line-height:1.8}
/* 保养与风格 */
.care-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.style-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.style-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:22px 18px;text-align:center}
.style-card b{font-family:var(--serif);font-weight:400;color:var(--ink);font-size:16px;letter-spacing:1px}
.style-card p{font-size:12.5px;color:var(--muted);margin-top:8px}
/* showcase 快捷定位 */
.cat-quick{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.quick-btn{padding:10px 24px;border:1px solid var(--cane-soft);border-radius:999px;background:var(--cream);font-size:14px;color:var(--cane-deep);cursor:pointer;transition:.25s}
.quick-btn:hover{background:var(--cane-pale)}
.prod-scene{font-size:12.5px;color:var(--cane-deep);margin-top:10px;letter-spacing:.5px;border-top:1px dashed var(--line);padding-top:10px}
/* 合作方向与招聘 */
.biz-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.biz-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:22px 20px}
.biz-card b{display:block;font-family:var(--serif);font-size:17px;color:var(--cane-deep);font-weight:400;margin-bottom:8px}
.biz-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.coop-note{margin-top:28px}
.coop-note .flow{color:var(--ink2);font-size:14.5px;line-height:2}
.coop-note .loc{color:var(--muted);font-size:13.5px;line-height:1.9;margin-top:12px}
/* 人才招聘 */
.job-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.job-card{background:var(--cream);border:1px solid var(--line);border-radius:8px;padding:28px 26px}
.job-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.job-head h3{font-family:var(--serif);font-size:21px;font-weight:400;color:var(--cane-deep);letter-spacing:1px}
.job-tag{font-size:12.5px;color:var(--muted);letter-spacing:1px}
.job-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.job-block b{display:block;font-size:14px;color:var(--ink);margin-bottom:10px;letter-spacing:1px}
.job-block ul{list-style:none}
.job-block li{font-size:13.5px;color:var(--ink2);line-height:1.9;padding-left:16px;position:relative;margin-bottom:6px}
.job-block li::before{content:"";position:absolute;left:2px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--cane-soft)}
.apply-note{margin-top:24px;background:var(--paper2);border:1px solid var(--line);border-radius:8px;padding:18px 22px;font-size:13.5px;color:var(--muted);line-height:1.9}
/* CTA 横条 */
.cta-band{background:var(--deep);color:#EFE4CF;text-align:center;padding:60px 0}
.cta-band h3{font-family:var(--serif);font-weight:400;font-size:26px;letter-spacing:2px;color:#F6EDD9;margin-bottom:12px}
.cta-band p{color:rgba(239,228,207,.7);margin-bottom:26px;font-size:15px}
.cta-band .btn-outline{display:inline-block;padding:12px 30px;border:1px solid var(--cane-soft);color:var(--cane-soft);border-radius:2px;letter-spacing:2px;font-size:15px}
.cta-band .btn-outline:hover{background:rgba(216,188,138,.14)}
/* ===== 滚动显现 ===== */
.rv{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}
/* ===== 响应式 ===== */
@media (max-width:1024px){
  .origin-grid{grid-template-columns:1fr;gap:34px}
  .craft-top,.craft-bottom{grid-template-columns:1fr;gap:24px}
  .stats{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:28px}
  .job-grid,.job-cols{grid-template-columns:1fr;gap:20px}
  .timeline,.value-grid{grid-template-columns:1fr 1fr}
  .mat-grid,.style-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-links{display:none}
  .burger{display:flex}
  .section{padding:64px 0}
  .process{grid-template-columns:1fr 1fr;gap:16px}
  .step:not(:last-child)::after{display:none}
  .product-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .product-card:last-child{grid-column:1/-1}
  .product-card:last-child .product-photo{height:220px}
  .gallery-grid{grid-template-columns:repeat(3,1fr);gap:12px}
  .gallery-grid img{height:150px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  .hero{min-height:640px}
  .hero-content{padding:110px 0 70px}
  .hero h1{letter-spacing:2px}
  .process{grid-template-columns:1fr}
  .features{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}
  .product-card:last-child{grid-column:auto}
  .product-photo{height:230px}
  .gallery-grid{grid-template-columns:repeat(3,1fr);gap:10px}
  .gallery-grid img{height:118px}
  .stats{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .origin-imgs{grid-template-columns:1fr 1fr}
  .origin-imgs .big{grid-row:auto}
  .timeline,.value-grid,.mat-grid,.style-grid,.biz-grid,.weave-grid,.care-grid{grid-template-columns:1fr}
  .split figure img{height:240px}
  .page-head{padding:108px 0 42px}
  .foot-bottom{flex-direction:column;gap:8px;text-align:left}
  .brand-logo{height:28px}
  .foot-logo{height:34px}
}