:root{
  --ink:#23201d;
  --ink-soft:#4a423b;
  --brown:#6b544a;
  --gold:#c8a063;
  --gold-deep:#a9824a;
  --cream:#f4efe7;
  --paper:#fbf9f5;
  --line:rgba(35,32,29,.12);
  --radius:18px;
  --wrap:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--paper);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:min(var(--wrap),calc(100% - 48px));margin:0 auto}
.eyebrow{letter-spacing:.22em;font-size:12px;color:var(--gold);margin:0 0 14px;text-transform:uppercase}
.eyebrow-dark{color:var(--brown)}
h1,h2,h3{margin:0;line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:16px}
.lede{color:var(--ink-soft);font-size:17px;max-width:52ch}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,249,245,.86);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:88px}
.brand img{height:72px;width:auto}
.nav{display:flex;gap:26px;margin-left:auto;font-size:15px;color:var(--ink-soft)}
.nav a{position:relative;padding:6px 0}
.nav a:hover{color:var(--ink)}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--gold);transition:right .25s}
.nav a:hover::after{right:0}
.header-call{white-space:nowrap}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .15s,background .2s,color .2s,border-color .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000}
.btn-line{border:1px solid var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--ink)}
.btn-ghost{border:1px solid var(--line);color:var(--ink);height:38px;padding:0 16px;font-size:14px}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* hero */
.hero{overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:40px;padding:64px 0 72px}
.hero h1{font-size:clamp(34px,4.6vw,56px);letter-spacing:-.01em}
.hl{color:var(--gold-deep)}
.hero-actions{display:flex;gap:14px;margin:28px 0 34px;flex-wrap:wrap}
.hero-facts{display:flex;gap:34px;list-style:none;padding:0;margin:0;border-top:1px solid var(--line);padding-top:22px}
.hero-facts b{display:block;font-size:24px;color:var(--brown)}
.hero-facts span{font-size:13px;color:var(--ink-soft)}
.hero-art{position:relative;display:grid;place-items:center;min-height:420px}
.disc{position:absolute;width:78%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 35% 30%,#f3e6d2,#e7d7bf 60%,#e2cfb2);box-shadow:inset 0 0 0 18px rgba(255,255,255,.35)}
.pet{position:relative;width:min(420px,86%);filter:drop-shadow(0 22px 30px rgba(60,40,20,.22))}
.badge{position:absolute;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;box-shadow:0 10px 24px rgba(60,40,20,.10)}
.badge-1{top:14%;left:2%}
.badge-2{bottom:16%;right:0}

/* sections */
.section{padding:84px 0}
.section-tint{background:var(--cream)}
.section-head{max-width:640px;margin-bottom:40px}
.head-note{color:var(--ink-soft);font-size:15px;margin-top:6px}
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.about-art img{filter:drop-shadow(0 20px 30px rgba(60,40,20,.14))}
.about-copy p{color:var(--ink-soft);margin:0 0 14px}
.sign{color:var(--brown);font-weight:600}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(60,40,20,.10)}
.card-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--cream);color:var(--brown);font-size:20px;font-weight:700;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--ink-soft);font-size:14.5px;margin:0}

.stores{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.store{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff;display:flex;flex-direction:column}
.store h3{font-size:19px}
.store-tag{display:inline-block;font-size:12px;color:var(--brown);background:var(--cream);border-radius:999px;padding:3px 10px;margin:8px 0 16px}
.store dl{margin:0;font-size:14px;color:var(--ink-soft);display:grid;grid-template-columns:auto 1fr;gap:6px 12px}
.store dt{color:var(--brown)}
.store dd{margin:0}

.section-dark{background:var(--ink);color:#f6f1e8}
.section-dark h2{color:#fff}
.section-dark .lede{color:rgba(246,241,232,.72)}
.contact-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.contact-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.contact-list li{display:flex;justify-content:space-between;gap:18px;border-bottom:1px solid rgba(255,255,255,.14);padding-bottom:12px;font-size:15px}
.contact-list span{color:rgba(246,241,232,.6)}
.contact-list b{font-weight:600}

.site-footer{border-top:1px solid var(--line);padding:34px 0 44px;background:var(--paper)}
.footer-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.footer-logo{height:46px;width:auto;opacity:.9}
.footer-meta p{margin:0;font-size:14px;color:var(--ink-soft)}
.muted{font-size:12.5px;color:#8a837c}
.footer-meta a{color:#8a837c;text-decoration:none;border-bottom:1px dotted #c9c2bb}
.footer-meta a:hover{color:#5c5650;border-bottom-color:#8a837c}

@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;padding:44px 0 56px}
  .hero-art{order:-1;min-height:320px}
  .about-grid,.contact-inner{grid-template-columns:1fr;gap:32px}
  .cards,.stores{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
}
@media (max-width:560px){
  .cards,.stores{grid-template-columns:1fr}
  .hero-facts{gap:22px}
  .section{padding:60px 0}
}

/* store photos */
.store-img{width:100%;height:170px;object-fit:cover;border-radius:12px;margin-bottom:16px;display:block;background:var(--cream)}
.brands{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.brand{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px;text-align:center}
.brand b{display:block;font-size:18px;margin-bottom:6px}
.brand span{font-size:13px;color:var(--ink-soft)}
@media (max-width:960px){.brands{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.brands{grid-template-columns:1fr}}

/* brand quote */
.quote-band{background:var(--ink);color:#f6f1e8;padding:64px 0;text-align:center}
.quote{font-size:clamp(20px,2.8vw,32px);font-weight:600;line-height:1.65;margin:0;letter-spacing:.02em;max-width:22em;margin-inline:auto}
.quote::before{content:"“";color:var(--gold);margin-right:.1em}
.quote::after{content:"”";color:var(--gold);margin-left:.1em}
.quote-src{margin:16px 0 0;font-size:13px;letter-spacing:.2em;color:rgba(246,241,232,.55)}



/* brand marks（官方 logo 图） */
.brand-mark{height:72px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.brand-mark img{max-height:56px;max-width:82%;width:auto;height:auto;object-fit:contain;display:block}
.brand-sub{font-size:13px;color:var(--ink-soft);display:block;text-align:center;line-height:1.5}

.badge-3{bottom:8%;left:2%}
.badge-4{top:8%;right:8%}
@media (max-width:960px){.badge-3{bottom:6%;left:0}.badge-4{top:6%;right:2%}}

/* 滚动渐入 */
body.js .section,body.js .store,body.js .card,body.js .brand{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
body.js .section.is-in,body.js .store.is-in,body.js .card.is-in,body.js .brand.is-in{opacity:1;transform:none}

/* 轮播 */
.carousel{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--cream);box-shadow:0 20px 40px rgba(60,40,20,.08)}
.carousel-track{position:relative;aspect-ratio:16/9}
.carousel-slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .9s ease}
.carousel-slide.is-active{opacity:1}
.carousel-slide img{width:100%;height:100%;object-fit:cover;display:block}
.carousel-slide figcaption{position:absolute;left:0;right:0;bottom:0;padding:18px 22px;color:#fff;font-size:14px;letter-spacing:.04em;background:linear-gradient(transparent,rgba(20,16,12,.62))}
.carousel-nav{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:none;background:rgba(255,255,255,.86);color:var(--ink);font-size:24px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:background .2s,transform .2s}
.carousel-nav:hover{background:#fff;transform:translateY(-50%) scale(1.06)}
.carousel-nav.prev{left:16px}
.carousel-nav.next{right:16px}
.carousel-dots{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:center;gap:8px}
.carousel-dot{width:8px;height:8px;border-radius:99px;background:rgba(255,255,255,.55);border:none;cursor:pointer;padding:0;transition:all .25s}
.carousel-dot.is-active{background:#fff;width:22px}
@media (max-width:560px){
  .carousel-nav{width:36px;height:36px;font-size:18px}
  .carousel-slide figcaption{padding:12px 14px;font-size:12.5px}
}

/* 联系区二维码 */
.contact-qr{text-align:center}
.contact-qr img{width:180px;height:180px;background:#fff;padding:12px;border-radius:16px;display:inline-block}
.contact-qr p{margin:14px 0 0;font-size:13px;letter-spacing:.14em;color:rgba(246,241,232,.72)}
@media (max-width:560px){.contact-qr img{width:150px;height:150px}}

/* 品牌镜片扫码验真 · 信任条 */
.trust-band{margin-top:36px;padding:26px 30px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}
.trust-band p{margin:0;font-size:15px;line-height:1.9;color:var(--ink-soft)}
.trust-band p strong{color:var(--brown);font-weight:700}
.trust-band .trust-note{margin-top:10px;font-size:13.5px;color:var(--ink-soft);opacity:.82}
@media (max-width:560px){.trust-band{padding:20px 22px}.trust-band p{font-size:14px}}

/* 门店导航按钮 */
.store-nav{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--brown);text-decoration:none;transition:.2s;align-self:flex-start}
.store-nav:hover{background:var(--brown);color:#fff;border-color:var(--brown)}