/* ========== Reset & Base ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --gold:#c5a572;
  --gold-light:#d9c396;
  --gold-deep:#a8884a;
  --ink:#0f1410;
  --ink-soft:#1a201b;
  --cream:#faf7f0;
  --cream-warm:#f5f0e3;
  --text:#2d2d2d;
  --text-light:#6b6b6b;
  --line:rgba(197,165,114,.28);
  --shadow:0 8px 30px rgba(0,0,0,.08);
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:"Noto Serif SC","Source Han Serif SC","PingFang SC","Microsoft YaHei",serif;
  color:var(--text);background:var(--cream);line-height:1.8;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section-title{text-align:center;margin-bottom:60px}
.section-title .en{
  font-family:"Italiana","Cormorant Garamond",serif;
  font-size:14px;letter-spacing:6px;color:var(--gold-deep);text-transform:uppercase;margin-bottom:12px;
}
.section-title h2{font-size:32px;font-weight:600;color:var(--ink);letter-spacing:4px;margin-bottom:16px}
.section-title .divider{width:60px;height:2px;background:var(--gold);margin:0 auto}
.btn{
  display:inline-block;padding:14px 42px;font-size:15px;letter-spacing:3px;
  border:1px solid var(--gold);background:transparent;color:var(--gold);
  cursor:pointer;transition:all .35s ease;font-family:inherit;
}
.btn:hover{background:var(--gold);color:#fff}
.btn-solid{background:var(--gold);color:#fff}
.btn-solid:hover{background:var(--gold-deep);border-color:var(--gold-deep)}

/* ========== Navigation ========== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(15,20,16,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(197,165,114,.15);transition:all .3s ease;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;max-width:1200px;margin:0 auto}
.nav-logo{font-size:22px;font-weight:700;color:var(--gold);letter-spacing:6px;font-family:"Italiana",serif}
.nav-logo span{display:block;font-size:9px;letter-spacing:3px;color:var(--gold-light);font-family:"Noto Sans SC",sans-serif;font-weight:400;margin-top:2px}
.nav-links{display:flex;gap:36px}
.nav-links a{font-size:14px;color:rgba(255,255,255,.75);letter-spacing:2px;transition:color .25s;font-family:"Noto Sans SC",sans-serif}
.nav-links a:hover{color:var(--gold)}
.nav-cta{padding:8px 22px;font-size:13px;border:1px solid var(--gold);color:var(--gold);border-radius:0;letter-spacing:2px;transition:all .3s}
.nav-cta:hover{background:var(--gold);color:#fff}
.nav-mall{padding:8px 20px;font-size:13px;background:var(--gold);color:#fff;border:1px solid var(--gold);letter-spacing:2px;transition:all .3s;margin-left:12px;font-family:"Noto Sans SC",sans-serif}
.nav-mall:hover{background:var(--gold-deep);border-color:var(--gold-deep)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px}
.nav-toggle span{width:24px;height:2px;background:var(--gold);display:block;transition:all .3s}

/* ========== Hero ========== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--ink);overflow:hidden}
.hero-bg{position:absolute;inset:0;opacity:.55;background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,20,16,.85) 0%,rgba(15,20,16,.5) 50%,rgba(15,20,16,.75) 100%)}
.hero-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.hero-tag{
  display:inline-block;font-family:"Italiana",serif;font-size:13px;letter-spacing:5px;
  color:var(--gold);text-transform:uppercase;margin-bottom:24px;border-bottom:1px solid var(--line);padding-bottom:8px;
}
.hero h1{font-size:64px;font-weight:600;color:#fff;line-height:1.2;letter-spacing:6px;margin-bottom:20px;max-width:700px}
.hero h1 .gold{color:var(--gold)}
.hero-sub{font-size:17px;color:rgba(255,255,255,.65);max-width:520px;line-height:2;margin-bottom:40px;font-family:"Noto Sans SC",sans-serif}
.hero-actions{display:flex;gap:20px;flex-wrap:wrap;align-items:center}
.hero-scroll{position:absolute;bottom:36px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.4);font-size:12px;letter-spacing:3px;text-align:center;animation:bounce 2s infinite}
.hero-scroll::after{content:"";display:block;width:1px;height:40px;background:linear-gradient(to bottom,rgba(197,165,114,.6),transparent);margin:12px auto 0}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ========== Brand Intro ========== */
.intro{background:var(--cream);padding:100px 0}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.intro-text h3{font-size:26px;font-weight:600;color:var(--ink);letter-spacing:3px;margin-bottom:24px;line-height:1.5}
.intro-text p{font-size:15px;color:var(--text-light);line-height:2.1;margin-bottom:20px;font-family:"Noto Sans SC",sans-serif}
.intro-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.intro-stat .num{font-family:"Italiana",serif;font-size:36px;color:var(--gold);font-weight:400}
.intro-stat .label{font-size:13px;color:var(--text-light);margin-top:4px;font-family:"Noto Sans SC",sans-serif}
.intro-img{position:relative;border-radius:2px;overflow:hidden;box-shadow:var(--shadow)}
.intro-img img{width:100%;height:480px;object-fit:cover}

/* ========== Services ========== */
.services{background:var(--ink);padding:100px 0;position:relative}
.services .section-title h2{color:#fff}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.service-card{text-align:center;padding:48px 24px;background:rgba(255,255,255,.03);border:1px solid rgba(197,165,114,.12);transition:all .4s ease;position:relative;overflow:hidden}
.service-card:hover{border-color:var(--gold);transform:translateY(-4px);background:rgba(197,165,114,.06)}
.service-icon{font-size:38px;margin-bottom:20px;filter:grayscale(1);opacity:.85}
.service-card:hover .service-icon{filter:none;opacity:1}
.service-card h4{font-size:17px;font-weight:600;color:var(--gold);letter-spacing:2px;margin-bottom:12px}
.service-card p{font-size:13px;color:rgba(255,255,255,.5);line-height:1.9;font-family:"Noto Sans SC",sans-serif}

/* ========== Products ========== */
.products{background:var(--cream);padding:100px 0}
.product-tabs{display:flex;justify-content:center;gap:0;margin-bottom:50px;border-bottom:1px solid var(--line)}
.product-tab{padding:12px 28px;font-size:14px;letter-spacing:2px;color:var(--text-light);cursor:pointer;background:none;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .3s;font-family:"Noto Sans SC",sans-serif}
.product-tab.active{color:var(--gold);border-bottom-color:var(--gold)}
.product-tab:hover{color:var(--gold-deep)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.product-card{background:#fff;border:1px solid rgba(0,0,0,.04);overflow:hidden;transition:all .35s;box-shadow:0 2px 12px rgba(0,0,0,.03)}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.product-card .img-wrap{aspect-ratio:4/3;overflow:hidden;background:var(--cream-warm)}
.product-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .img-wrap img{transform:scale(1.05)}
.product-card .info{padding:24px}
.product-card .cat{font-size:11px;letter-spacing:3px;color:var(--gold-deep);text-transform:uppercase;margin-bottom:8px;font-family:"Noto Sans SC",sans-serif}
.product-card h4{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px;letter-spacing:1px}
.product-card .desc{font-size:13px;color:var(--text-light);line-height:1.7;font-family:"Noto Sans SC",sans-serif}

/* ========== Appraisal ========== */
.appraisal{background:var(--cream-warm);padding:100px 0}
.appraisal-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.appraisal-img{border-radius:2px;overflow:hidden;box-shadow:var(--shadow)}
.appraisal-img img{width:100%;height:420px;object-fit:cover}
.appraisal-text h3{font-size:26px;font-weight:600;color:var(--ink);letter-spacing:3px;margin-bottom:20px}
.appraisal-text p{font-size:14px;color:var(--text-light);line-height:2;margin-bottom:28px;font-family:"Noto Sans SC",sans-serif}
.appraisal-list{margin-bottom:32px}
.appraisal-list li{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;font-size:14px;color:var(--text);font-family:"Noto Sans SC",sans-serif}
.appraisal-list li::before{content:"◆";color:var(--gold);font-size:10px;margin-top:4px;flex-shrink:0}

/* ========== Brand Story ========== */
.story{background:var(--ink);padding:100px 0;position:relative;overflow:hidden}
.story::before{content:"";position:absolute;top:0;right:0;width:40%;height:100%;background:linear-gradient(180deg,rgba(197,165,114,.04),transparent);pointer-events:none}
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.story-img img{width:100%;height:520px;object-fit:cover;border-radius:2px}
.story-text h3{font-size:26px;font-weight:600;color:#fff;letter-spacing:3px;margin-bottom:20px}
.story-text .en-quote{font-family:"Italiana",serif;font-size:18px;color:var(--gold);font-style:italic;margin-bottom:24px;line-height:1.8}
.story-text p{font-size:14px;color:rgba(255,255,255,.55);line-height:2;margin-bottom:20px;font-family:"Noto Sans SC",sans-serif}
.story-values{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.story-value{text-align:center;padding:20px 12px;border:1px solid rgba(197,165,114,.15)}
.story-value .v-num{font-family:"Italiana",serif;font-size:24px;color:var(--gold)}
.story-value .v-label{font-size:12px;color:rgba(255,255,255,.45);margin-top:6px;letter-spacing:1px;font-family:"Noto Sans SC",sans-serif}

/* ========== CTA Section ========== */
.cta-section{background:var(--cream);padding:80px 0;text-align:center}
.cta-inner{max-width:700px;margin:0 auto}
.cta-inner h3{font-size:28px;font-weight:600;color:var(--ink);letter-spacing:4px;margin-bottom:16px}
.cta-inner p{font-size:15px;color:var(--text-light);line-height:2;margin-bottom:36px;font-family:"Noto Sans SC",sans-serif}
.cta-actions{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}

/* ========== WeChat QR ========== */
.wechat-block{display:flex;align-items:flex-start;gap:14px;margin-top:14px}
/* 二维码图片：尺寸与旧占位一致，圆角描边；onerror 时由 JS 切回占位方块 */
.qr-img{width:92px;height:92px;flex-shrink:0;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:rgba(197,165,114,.10);transition:border-color .3s;cursor:pointer}
.qr-img:hover{border-color:var(--gold)}
/* 降级占位（图片加载失败时显示） */
.qr-fallback{width:92px;height:92px;flex-shrink:0;background:repeating-linear-gradient(45deg,rgba(197,165,114,.10),rgba(197,165,114,.10) 8px,rgba(197,165,114,.18) 8px,rgba(197,165,114,.18) 16px);border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:6px;cursor:pointer;transition:all .3s}
.qr-fallback:hover{border-color:var(--gold);background:rgba(197,165,114,.22)}
.qr-fallback .qr-icon{font-size:24px;line-height:1;opacity:.75}
.qr-fallback .qr-tip{font-size:10px;color:rgba(255,255,255,.45);margin-top:4px;letter-spacing:1px;font-family:"Noto Sans SC",sans-serif;line-height:1.3}
.wechat-info{font-size:12px;color:rgba(255,255,255,.35);line-height:1.85;font-family:"Noto Sans SC",sans-serif}
.wechat-info strong{color:var(--gold-light);font-weight:500;font-size:12.5px;letter-spacing:1px}
.mall-link{display:inline-block;margin-top:6px;font-size:12px;color:var(--gold);border-bottom:1px solid rgba(197,165,114,.4);padding-bottom:1px;transition:color .25s}
.mall-link:hover{color:#fff;border-bottom-color:#fff}

/* ========== Footer ========== */
.footer{background:var(--ink);padding:60px 0 30px;color:rgba(255,255,255,.4);font-family:"Noto Sans SC",sans-serif}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:40px;align-items:start}
.footer-brand .logo{font-size:24px;font-weight:700;color:var(--gold);letter-spacing:6px;font-family:"Italiana",serif;margin-bottom:12px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.35);line-height:1.9;max-width:320px}
.footer-col h5{font-size:14px;color:var(--gold-light);letter-spacing:2px;margin-bottom:16px;font-weight:500}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13px;color:rgba(255,255,255,.35);transition:color .25s}
.footer-col ul li a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(197,165,114,.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:12px;color:rgba(255,255,255,.25)}
.footer-bottom .icp{letter-spacing:1px}
.footer-bottom .icp a{color:rgba(255,255,255,.35)}
.footer-bottom .icp a:hover{color:var(--gold)}

/* ========== Responsive ========== */
@media(max-width:900px){
  .hero h1{font-size:42px;letter-spacing:4px}
  .intro-grid,.appraisal-grid,.story-grid{grid-template-columns:1fr;gap:48px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .intro-stats{grid-template-columns:repeat(3,1fr);gap:12px}
  .story-values{grid-template-columns:repeat(3,1fr);gap:12px}
}
@media(max-width:640px){
  .section{padding:70px 0}
  .hero h1{font-size:32px;letter-spacing:3px}
  .hero-sub{font-size:15px}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:rgba(15,20,16,.97);padding:20px 24px;gap:16px;border-bottom:1px solid rgba(197,165,114,.15)}
  .nav-links.active{display:flex}
  .nav-toggle{display:flex}
  .services-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .intro-stats{flex-direction:row}
  .section-title h2{font-size:24px;letter-spacing:3px}
}