:root{--ink:#152a36;--muted:#566570;--paper:#fff;--wash:#f2f5f5;--line:#dce2e4;--accent:#d6ee99;--serif:Georgia,'Times New Roman',serif;--sans:Arial,Helvetica,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px}button{font:inherit}img{display:block;max-width:100%;height:auto}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #467b95;outline-offset:5px}::selection{background:var(--accent);color:var(--ink)}.container{width:min(1280px,calc(100% - 96px));margin-inline:auto}.launch-bar{background:var(--ink);color:#fff;text-align:center;padding:8px 20px;font-size:.75rem;letter-spacing:.12em}.site-header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.header-inner{display:flex;min-height:94px;align-items:center;justify-content:space-between;gap:32px}.brand{font:1.75rem/1 var(--serif);letter-spacing:.13em;text-decoration:none}.nav{display:flex;align-items:center;gap:32px}.nav a{font-size:.875rem;text-decoration:none;padding:10px 0}.nav a:hover,.nav a[aria-current=page]{text-decoration:underline}.nav .nav-contact{padding:10px 23px;border:1px solid var(--ink)}.menu-toggle{display:none;background:none;border:1px solid var(--line);padding:9px 14px;min-height:44px}.skip-link{position:fixed;top:-100px;left:20px;background:var(--ink);color:white;padding:12px;z-index:100}.skip-link:focus{top:12px}.eyebrow{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;margin:0 0 24px}.hero{display:grid;grid-template-columns:1.06fr 1fr;min-height:590px;padding-top:48px;padding-bottom:48px;gap:56px;align-items:center}.hero h1{font:clamp(3.6rem,5.4vw,5.3rem)/1.06 var(--serif);letter-spacing:-.045em;margin:0 0 30px;font-weight:400}.hero h1 em{color:#54717d;font-weight:400}.lead{color:var(--muted);font-size:1.0625rem;max-width:460px;margin:0 0 32px}.actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:50px;padding:13px 24px;background:var(--ink);color:#fff;text-decoration:none;font-size:.875rem;border:1px solid var(--ink)}.button:hover{background:#304853}.button.light{background:var(--accent);color:var(--ink);border-color:var(--accent)}.text-link{font-size:.875rem}.hero-note{font-size:.75rem;color:var(--muted);margin:28px 0 0}.hero-visual{margin:0;position:relative;background:var(--wash);min-height:480px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}.hero-visual img{width:100%;height:480px;object-fit:cover}.hero-visual figcaption{padding:14px 18px;display:flex;justify-content:space-between;gap:16px;font-size:.75rem;background:var(--wash)}.editorial-mark{min-height:480px;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--ink);color:#fff}.editorial-mark strong{font:5rem var(--serif);font-weight:400}.editorial-mark span{font-size:.75rem;letter-spacing:.2em;margin-top:18px}.statement-bar{border-block:1px solid var(--line)}.statement-inner{display:flex;justify-content:space-between;gap:24px;padding-block:24px;font-size:.8125rem}.statement-inner span:last-child{color:var(--muted)}.section{padding-block:96px}.section-head{display:flex;justify-content:space-between;gap:48px;align-items:end;margin-bottom:40px}.section-head h2,.story h2,.contact-block h2{font:clamp(2.4rem,3.5vw,3.5rem)/1.15 var(--serif);letter-spacing:-.025em;margin:0}.section-head p{max-width:390px;color:var(--muted);margin:0}.section-head .eyebrow{margin-bottom:16px;color:var(--ink)}.directions{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}.direction{padding:36px 34px 16px 0}.direction+.direction{border-left:1px solid var(--line);padding-left:34px}.direction .number{font-size:.75rem;color:var(--muted);letter-spacing:.1em}.direction h3{font:1.75rem/1.2 var(--serif);font-weight:400;margin:38px 0 18px}.direction p{color:var(--muted);font-size:.9375rem}.small-note{font-size:.8125rem;color:var(--muted);margin-top:30px}.story{background:var(--wash);padding-block:80px}.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.story-text p:not(.eyebrow){color:var(--muted)}.story-image{margin:0}.story-image img{width:100%;aspect-ratio:3/2;object-fit:cover}.story-image figcaption{font-size:.75rem;color:var(--muted);margin-top:12px}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.principle{border-top:1px solid var(--ink);padding-top:20px}.principle h3{font-size:1.125rem;font-weight:500}.principle p{color:var(--muted);font-size:.9375rem}.contact-block{background:var(--ink);color:#fff;padding-block:70px}.contact-inner{display:flex;justify-content:space-between;align-items:center;gap:56px}.contact-block .eyebrow{color:var(--accent)}.contact-block p:not(.eyebrow){max-width:500px;color:#c9d3d8}.site-footer{padding:60px 0 24px}.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:48px}.footer-copy{font-size:.875rem;max-width:320px;color:var(--muted);margin-top:24px}.footer-title{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;margin:0 0 18px}.footer-links{display:flex;flex-direction:column;gap:10px}.footer-links a{font-size:.875rem;text-decoration:none}.footer-links a:hover{text-decoration:underline}.footer-bottom{border-top:1px solid var(--line);margin-top:48px;padding-top:24px;display:flex;justify-content:space-between;gap:20px;font-size:.75rem;color:var(--muted)}.page-heading{padding:72px 0 48px;border-bottom:1px solid var(--line)}.page-heading h1{font:clamp(3rem,5vw,4.5rem)/1.1 var(--serif);letter-spacing:-.035em;margin:0 0 24px}.page-heading .lead{max-width:680px;margin:0}.document-layout{display:grid;grid-template-columns:240px minmax(0,760px);gap:70px;padding-block:56px 96px}.document-nav{font-size:.875rem;display:flex;flex-direction:column;gap:14px;align-items:start}.document-nav a[aria-current=page]{font-weight:700}.document section{margin-bottom:38px}.document h2{font:1.7rem/1.3 var(--serif);margin:0 0 16px}.document p,.document li{color:var(--muted)}.document p:first-child{margin-top:0}.notice{padding:20px 24px;background:var(--wash);border-left:3px solid var(--ink);margin-bottom:32px}.notice strong{color:var(--ink)}.info-list{margin:24px 0}.info-list div{display:grid;grid-template-columns:190px 1fr;gap:24px;border-bottom:1px solid var(--line);padding:20px 0}.info-list dt{font-size:.875rem}.info-list dd{margin:0;color:var(--muted);overflow-wrap:anywhere}.faq{margin-top:42px}.faq details{border-top:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;font-size:1rem;min-height:32px}.faq details p{font-size:.9375rem;padding-right:24px}.narrow{max-width:780px;margin:auto}.hidden{display:none!important}@media(min-width:901px){.nav{display:flex!important}}@media(max-width:1100px){.container{width:calc(100% - 64px)}.hero{gap:32px}.hero h1{font-size:4rem}.nav{gap:20px}}@media(max-width:900px){.container{width:calc(100% - 40px)}.header-inner{min-height:78px;flex-wrap:wrap;gap:0}.brand{font-size:1.5rem}.menu-toggle{display:block}.nav{width:100%;flex-direction:column;align-items:stretch;gap:0;padding:16px 0 24px}.nav a{padding:12px 0}.nav .nav-contact{margin-top:8px;text-align:center}.hero{grid-template-columns:1fr;gap:36px;padding-top:48px;min-height:0}.hero h1{font-size:clamp(3.2rem,9vw,4.7rem)}.hero .lead{max-width:540px}.hero-visual{min-height:0}.hero-visual img{height:auto;aspect-ratio:3/2}.editorial-mark{min-height:360px}.section{padding-block:64px}.section-head{align-items:start;flex-direction:column;gap:22px}.story-grid{gap:40px;grid-template-columns:1fr}.story{padding-block:56px}.contact-inner{flex-direction:column;align-items:start;gap:24px}.document-layout{grid-template-columns:1fr;gap:32px}.document-nav{flex-direction:row;flex-wrap:wrap;gap:12px 24px;padding-bottom:24px;border-bottom:1px solid var(--line)}.footer-top{grid-template-columns:1fr 1fr}.footer-top>div:first-child{grid-column:1/-1}}@media(max-width:560px){.launch-bar{font-size:.75rem;letter-spacing:.04em}.directions,.principles{grid-template-columns:1fr}.direction,.direction+.direction{padding:24px 0;border-left:0}.direction+.direction{border-top:1px solid var(--line)}.direction h3{margin-top:20px}.statement-inner{flex-direction:column;gap:4px;padding-block:18px}.hero h1{font-size:3.15rem}.hero-visual figcaption{flex-wrap:wrap;gap:4px}.section-head h2,.story h2,.contact-block h2{font-size:2.35rem}.footer-top{gap:32px 16px}.footer-bottom{flex-direction:column;gap:6px}.page-heading{padding-block:48px 32px}.info-list div{grid-template-columns:1fr;gap:6px}.contact-block{padding-block:50px}.actions{gap:20px}.document-layout{padding-bottom:56px}.hero-note{max-width:330px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
[hidden]{display:none!important}.story-text h2,.story-title{font:clamp(2.2rem,3.3vw,3.2rem)/1.15 var(--serif);font-weight:400;letter-spacing:-.025em}

/* Mobile navigation overlays content instead of changing the header's height. */
.icon{display:inline-block;width:1.25rem;height:1.25rem;flex-shrink:0;vertical-align:-.2em;pointer-events:none}
.menu-toggle .icon-close{display:none}
.menu-toggle[aria-expanded="true"] .icon-menu{display:none}
.menu-toggle[aria-expanded="true"] .icon-close{display:inline-block}
.menu-toggle{width:108px;justify-content:center;align-items:center;gap:8px;color:var(--ink);cursor:pointer;flex-shrink:0}
@media(max-width:900px){
 .header-inner.nav-enhanced{height:78px;min-height:78px;flex-wrap:nowrap}
 .menu-toggle{display:none}
 .nav-enhanced .menu-toggle{display:inline-flex}
 .nav-enhanced .nav{position:absolute;top:100%;left:0;right:0;width:auto;margin:0;padding:12px 20px 20px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 20px #152a3614;max-height:calc(100vh - 8rem);max-height:calc(100dvh - 8rem);overflow-y:auto;overscroll-behavior:contain}
 .nav-enhanced .nav a{min-height:48px;display:flex;align-items:center}
 .nav-enhanced .nav .nav-contact{justify-content:center}
}
/* 商品展示沿用品牌配色，手机两列，极窄屏单列。 */
.collection-meta{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding:20px 0;font-size:11px;letter-spacing:.12em;color:var(--muted);flex-wrap:wrap}
.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:36px 24px}
.product-card{min-width:0;display:flex;flex-direction:column}
.product-photo{aspect-ratio:1;background:#f6f6f4;overflow:hidden}
.product-photo img{width:100%;height:100%;object-fit:contain;display:block;mix-blend-mode:multiply}
.product-info{display:flex;flex:1;flex-direction:column;padding:18px 0 0}
.product-brand{font-size:11px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 8px;color:var(--muted)}
.product-info h3{font-family:inherit;font-size:15px;font-weight:400;line-height:1.5;margin:0 0 16px;overflow-wrap:anywhere}
.product-price{font-size:20px;font-weight:600;margin:auto 0 10px;font-variant-numeric:tabular-nums}
.product-price span{font-size:10px;font-weight:400;letter-spacing:.08em;margin-left:5px;color:var(--muted)}
.product-source{font-size:12px;display:inline-flex;align-items:center;gap:8px;min-height:44px;align-self:flex-start;text-underline-offset:4px}
.product-source .icon{width:14px;height:14px}
.collection-note{max-width:850px;margin-top:32px}
@media(max-width:1000px){.product-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:700px){.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 16px}.product-info h3{font-size:14px}.product-price{font-size:18px}}
@media(max-width:359px){.product-grid{grid-template-columns:1fr}}
/* Order request: same YIQI typography, clear form hierarchy and responsive summary. */
.product-order{display:inline-flex;align-items:center;justify-content:center;min-height:44px;margin-top:8px;padding:9px 12px;border:1px solid var(--ink);background:var(--ink);color:#fff;text-decoration:none;font-size:.8125rem;line-height:1.25;text-align:center}
.product-order:hover{background:#304853}
.checkout-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;padding-block:48px 96px}
.checkout-steps{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:0 0 24px;border-bottom:1px solid var(--line);font-size:.7rem;letter-spacing:.08em;font-weight:600}
.checkout-panel{padding:36px 0;border-bottom:1px solid var(--line)}
.checkout-panel h2,.order-summary h2,.order-success h2{font:2rem/1.2 var(--serif);font-weight:400;margin:0 0 24px}
.checkout-panel p{color:var(--muted);margin:0 0 20px}
.checkout-panel label:not(.check-row){display:block;margin:17px 0 6px;font-size:.85rem;font-weight:600}
.checkout-panel input:not([type=checkbox]),.checkout-panel select,.checkout-panel textarea{display:block;width:100%;min-height:48px;border:1px solid #9caab1;border-radius:0;background:#fff;padding:10px 13px;color:var(--ink);font:inherit}
.checkout-panel textarea{resize:vertical;min-height:92px}
.checkout-panel input:focus-visible,.checkout-panel select:focus-visible,.checkout-panel textarea:focus-visible{outline:3px solid #467b95;outline-offset:2px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-hint{font-size:.8rem;line-height:1.55;color:var(--muted);margin-top:10px!important}
.required{color:#a43222}
.check-row{display:flex;align-items:start;gap:12px;margin:20px 0;line-height:1.5;font-size:.875rem}
.check-row input{width:19px;height:19px;flex:none;margin:2px 0 0}
.honeypot{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.form-error{margin:18px 0;padding:14px 16px;background:#fff0ec;border-left:3px solid #a43222;color:#7b2417}
#submit-order{cursor:pointer}
#submit-order:disabled{opacity:.55;cursor:not-allowed}
.order-summary{position:sticky;top:120px;background:var(--wash);padding:26px}
.order-summary h2{font-size:1.55rem;margin-bottom:20px}
.summary-item{display:flex;gap:16px;border-bottom:1px solid var(--line);padding-bottom:20px;align-items:start}
.summary-item img{width:96px;height:96px;object-fit:contain;background:#fff}
.summary-item p{margin:0 0 8px;font-size:.85rem;line-height:1.45}
.summary-item p+p{font-size:.75rem;color:var(--muted)}
.summary-line{display:flex;justify-content:space-between;gap:16px;padding-top:18px;font-size:.875rem}
.order-summary .form-hint{margin:24px 0 0!important}
.order-success{padding:64px 0;max-width:680px}
.order-success h2{font-size:clamp(2.4rem,4vw,3.7rem)}
.order-success p{color:var(--muted)}
.order-success strong{color:var(--ink);font-variant-numeric:tabular-nums}
@media(max-width:950px){.checkout-layout{grid-template-columns:1fr}.order-summary{position:static;grid-row:1}}
@media(max-width:600px){.checkout-layout{gap:20px;padding-block:28px 64px}.checkout-steps{gap:8px}.checkout-steps span{flex:1 1 100%}.form-row{grid-template-columns:1fr;gap:0}.checkout-panel{padding:28px 0}.order-summary{padding:22px}.product-order{width:100%}}

/* Storefront extension: preserves YIQI's existing navy editorial system. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.store-title{font:clamp(2.7rem,5vw,4.5rem)/1.1 var(--serif);font-weight:400;letter-spacing:-.035em;margin:0 0 24px}
.shop-filters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;border-block:1px solid var(--line);padding:22px 0}
.shop-filters label{font-size:.875rem;font-weight:600;display:grid;gap:6px}
.shop-filters select,.product-info select,.detail-layout select,.detail-layout input,#track-form input,#contact-form input,#contact-form select,#contact-form textarea{width:100%;min-height:46px;border:1px solid #9caab1;background:#fff;padding:9px 12px;color:var(--ink);font:inherit}
.product-info h3 a{text-decoration:none}.product-info h3 a:hover{text-decoration:underline}
.product-info select{font-size:.875rem;margin-top:8px}
.card-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.card-actions .product-order{cursor:pointer;flex:1}.card-actions .text-link{font-size:.8rem}
.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.78fr);gap:7%;align-items:start}
.detail-photo{background:#f6f6f4}.detail-photo img{display:block;width:100%;height:auto;object-fit:contain}
.detail-price{font-size:1.5rem;font-weight:600}.detail-layout label{display:block;margin:16px 0 6px;font-weight:600}.detail-layout .button{margin-top:18px;cursor:pointer}.detail-layout details{border-top:1px solid var(--line);margin:28px 0;padding-top:18px}.detail-layout summary{cursor:pointer}
.cart-line{display:grid;grid-template-columns:96px minmax(0,1fr) auto;gap:20px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line)}
.cart-line img{background:var(--wash);object-fit:contain}.cart-line p{color:var(--muted);margin:6px 0}.cart-line input{width:74px;min-height:40px;padding:6px;border:1px solid #9caab1}.cart-line button{margin-left:14px;border:0;background:none;text-decoration:underline;cursor:pointer}
.cart-totals{margin:30px 0 0 auto;max-width:400px;background:var(--wash);padding:24px}.cart-totals p{display:flex;justify-content:space-between;gap:20px}.cart-totals .button{margin-top:14px}
#track-form,#contact-form{display:grid;gap:10px;margin:28px 0}#track-form label,#contact-form label{font-weight:600;font-size:.9rem}#track-form .button,#contact-form .button{justify-self:start;margin-top:12px;cursor:pointer}#track-result,#contact-result{margin-top:24px;min-height:24px}
#checkout-items{border-bottom:1px solid var(--line);padding-bottom:16px}#checkout-items p{margin:8px 0}.checkout-panel input[type=radio]{width:20px;height:20px;margin-right:10px}.checkout-panel label:has(input[type=radio]){display:flex;align-items:center;font-weight:400}.order-summary p{font-size:.85rem}
@media(max-width:900px){.detail-layout{grid-template-columns:1fr;gap:28px}.shop-filters{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.shop-filters{grid-template-columns:1fr 1fr;gap:12px}.cart-line{grid-template-columns:72px minmax(0,1fr)}.cart-line img{width:72px;height:72px}.cart-line strong{grid-column:2}.card-actions{display:block}.card-actions .product-order{width:100%;margin-bottom:8px}}