.ostone-home{--paper:#f7f5ef;--ink:#30382f;--muted:#697064;--line:#d8dacf;--serif:'Songti SC','STSong','SimSun',serif;box-sizing:border-box;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Microsoft YaHei',sans-serif;font-size:14px;line-height:1.7;margin:0}
.ostone-home *{box-sizing:border-box}.ostone-home a{color:inherit;text-decoration:none}.ostone-home button{font:inherit;color:inherit;background:none;border:0;border-radius:0;margin:0;padding:0;text-align:left;cursor:pointer}.ostone-home button::after{border:0}.ostone-home a:focus-visible,.ostone-home button:focus-visible{outline:2px solid #697641;outline-offset:6px}.ostone-home img{display:block;max-width:100%}.ostone-home p,.ostone-home h1,.ostone-home h2,.ostone-home h3{margin:0;font-weight:400}.skip-link{position:fixed;top:-80px;left:20px;z-index:100;background:var(--paper);padding:15px}.skip-link:focus{top:8px}
.edition-bar{display:flex;justify-content:space-between;align-items:center;min-height:30px;background:#344338;color:#f3f1e7;padding:0 5%;font-size:10px;letter-spacing:2px}.brand-header{position:relative;z-index:30;min-height:98px;padding:20px 5%;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);background:var(--paper)}.wordmark{display:flex;flex-direction:column;align-items:center;flex:none}.wordmark-cn{display:block;font:28px/1.3 var(--serif);letter-spacing:7px}.wordmark-en{display:block;font:10px/1.5 Georgia,serif;letter-spacing:5px;margin-top:6px}.primary-nav{display:flex;align-items:center;gap:30px}.nav-link{display:flex;align-items:center;gap:8px;min-height:44px;font-size:12px;position:relative}.nav-link:after{content:'';height:1px;background:currentColor;position:absolute;bottom:4px;left:28px;right:0;transform:scaleX(0);transform-origin:left;transition:transform .3s}.nav-link:hover:after{transform:scaleX(1)}.nav-icon{width:20px;height:20px;flex:none}.header-actions{display:flex;gap:14px}.header-action{display:flex;align-items:center;justify-content:center;width:40px;height:44px}.header-action svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.3}.header-actions .nav-icon{width:23px;height:23px}
.editorial-hero{position:relative;display:grid;grid-template-columns:46% 54%;min-height:660px;background:#eceee3;isolation:isolate}.hero-copy{position:relative;z-index:2;padding:72px 0 38px 10.8%;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.eyebrow{display:block;font-size:10px;letter-spacing:2.5px;line-height:1.7}.hero-edition{display:flex;align-items:center;gap:14px;color:#626b59}.fine-rule{height:1px;width:38px;background:currentColor;display:inline-block}.hero-title{font:clamp(46px,5.6vw,84px)/1.28 var(--serif);letter-spacing:3px;margin:36px 0 23px!important}.line{display:block}.hero-italic{font:italic clamp(22px,2.2vw,32px)/1.5 Georgia,serif;color:#707961}.hero-description{font-size:13px;color:#57604f;line-height:2;margin-top:24px!important;letter-spacing:1px}.round-link{display:inline-flex;align-items:center;gap:26px;min-height:48px;margin-top:28px;font-size:12px;letter-spacing:1px}.arrow-disc{display:inline-flex;align-items:center;justify-content:center;border:1px solid currentColor;width:44px;height:44px;border-radius:50%;font:24px/1 Georgia;transition:transform .3s,background .3s,color .3s}.round-link:hover .arrow-disc{transform:rotate(45deg);background:var(--ink);color:var(--paper)}.hero-bottom{margin-top:auto;padding-top:42px;display:flex;gap:36px;font-size:9px;letter-spacing:2px;color:#646c5c}.hero-visual{position:relative;overflow:hidden;min-width:0}.hero-photo{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:center}.hero-caption{position:absolute;left:34px;right:34px;bottom:28px;display:flex;justify-content:space-between;gap:10px;font-size:11px;letter-spacing:1px;color:#30382f}.hero-seal{position:absolute;top:36px;right:36px;width:72px;height:72px;border:1px solid #727c61;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#f7f5efc9}.hero-seal em{font:italic 25px Georgia}.hero-seal small{font-size:8px;letter-spacing:1px}.hero-photo{animation:hero-arrive 1.2s ease-out both}@keyframes hero-arrive{from{transform:scale(1.035);opacity:.5}to{transform:scale(1);opacity:1}}
.section-wrap{width:min(1440px,90%);margin-left:auto;margin-right:auto}.collection-row{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0;border-bottom:1px solid var(--line)}.collection-link{display:flex;align-items:center;gap:18px;padding:17px 24px;min-height:82px;border-right:1px solid var(--line)}.collection-link:first-child{padding-left:0}.collection-link:last-child{border-right:0}.collection-icon{width:35px;height:35px;flex:none;transition:transform .3s}.collection-link:hover .collection-icon{transform:translateY(-3px)}.collection-name{display:block;font:21px/1.5 var(--serif);letter-spacing:2px}.collection-kind{display:block;color:var(--muted);font-size:10px;letter-spacing:1px;margin-top:5px}.tiny-arrow{margin-left:auto;font-size:19px}
.colour-intro{display:flex;justify-content:space-between;align-items:flex-end;padding-top:95px;padding-bottom:36px;gap:40px}.section-title{font:clamp(32px,3.4vw,50px)/1.5 var(--serif);letter-spacing:3px;margin-top:14px!important}.section-note{font-size:13px;line-height:2;color:var(--muted);max-width:330px}.colour-nav{position:sticky;top:0;z-index:25;background:#f7f5eff5;backdrop-filter:blur(16px);border-bottom:1px solid var(--line);border-top:1px solid var(--line)}.colour-track{display:flex;justify-content:space-between;gap:20px}.colour-tab{display:flex;align-items:center;gap:12px;min-height:76px;white-space:nowrap;position:relative;font-size:13px}.colour-tab:after{content:'';position:absolute;height:2px;bottom:-1px;left:0;right:0;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .3s}.colour-tab:hover:after,.colour-tab[aria-current=location]:after{transform:scaleX(1)}.colour-chip{width:13px;height:13px;display:inline-block;border-radius:50%;border:1px solid #00000012}.tab-number{font:italic 11px Georgia;color:var(--muted)}
.colour-story{scroll-margin-top:76px;padding:76px 0 85px;border-bottom:1px solid var(--line);--tone:#e7eade;--accent:#61704e}.theme-blush{--tone:#eee9df;--accent:#8d7954;background:#f0ede6}.theme-blue{--tone:#e2e7e8;--accent:#3b566d}.theme-lavender{--tone:#e9e4ed;--accent:#776281;background:#efedf0}.theme-peach{--tone:#f0e2de;--accent:#a56570}.theme-sand{--tone:#e3e2de;--accent:#6b6962;background:#eeece6}.story-heading{display:flex;justify-content:space-between;gap:35px;align-items:flex-end;margin-bottom:36px}.story-titleline{display:flex;align-items:flex-start;gap:20px}.story-number{font:italic 19px Georgia;color:var(--accent);margin-top:14px}.story-title{font:clamp(32px,3.5vw,50px)/1.25 var(--serif);letter-spacing:3px;margin-bottom:15px!important}.story-description{font-size:13px;color:var(--muted);margin-top:13px!important}.story-palette{display:flex;gap:7px;margin-bottom:13px;justify-content:flex-end}.story-palette .colour-chip{width:23px;height:23px;border:none}.palette-note{font-size:10px;letter-spacing:2px;color:var(--muted);display:block}.story-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px;align-items:start}.product-card{display:block;min-width:0}.product-card:nth-child(2){margin-top:52px}.product-card:nth-child(3){margin-top:105px}.colour-story:nth-of-type(even) .story-grid{grid-template-columns:1fr 1fr 1.3fr}.colour-story:nth-of-type(even) .product-card:first-child{grid-column:3;grid-row:1}.colour-story:nth-of-type(even) .product-card:nth-child(2){grid-column:1;grid-row:1;margin-top:105px}.colour-story:nth-of-type(even) .product-card:nth-child(3){grid-column:2;grid-row:1;margin-top:52px}.product-visual{position:relative;background:#fff;overflow:hidden;aspect-ratio:1}.product-photo{width:100%;height:100%;object-fit:contain;display:block;transition:transform .65s cubic-bezier(.2,.65,.25,1)}.product-card:hover .product-photo{transform:scale(1.035)}.product-view{position:absolute;right:16px;bottom:16px;width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#f7f5efeb;font-size:20px;transition:background .3s,color .3s}.product-card:hover .product-view{background:var(--ink);color:var(--paper)}.product-kicker{display:flex;justify-content:space-between;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:20px}.product-info{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-top:7px}.product-name{font:24px/1.5 var(--serif);letter-spacing:1px}.product-price{font-size:14px;font-variant-numeric:tabular-nums;white-space:normal;line-height:1.6}.price-suffix{font-size:11px;margin-left:3px}.product-note{display:block;margin-top:6px!important;font-size:12px;color:var(--muted)}.story-foot{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:40px;padding-top:22px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.story-styling{display:flex;gap:22px}.story-styling span:first-child{font-size:9px;letter-spacing:2px}.back-index{min-height:44px;display:inline-flex;align-items:center;gap:16px;white-space:nowrap}.price-note{padding:27px 0 32px;color:var(--muted);font-size:11px}.empty-state{padding:60px 5%;min-height:180px}.empty-state button{min-height:44px;text-decoration:underline}
.atelier{display:grid;grid-template-columns:1fr 1fr;background:#344338;color:#f3f1e7}.atelier-visual{position:relative;min-height:630px;overflow:hidden}.atelier-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.atelier-copy{padding:80px 13%;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.atelier-title{font:clamp(33px,3.2vw,48px)/1.5 var(--serif);letter-spacing:2px;margin:30px 0 25px!important}.atelier-description{color:#d3dacd;font-size:13px;line-height:2.1}.atelier .round-link{margin-top:32px}.atelier .round-link:hover .arrow-disc{background:var(--paper);color:var(--ink)}.atelier-sign{display:block;font:italic 24px/1.4 Georgia;margin-top:45px;color:#cad1bb}.guide{display:grid;grid-template-columns:repeat(3,1fr);gap:60px;padding:60px 0}.guide-number{font:italic 14px Georgia;color:var(--muted)}.guide-title{font:22px/1.6 var(--serif);margin:14px 0 9px!important;display:block}.guide-copy{font-size:12px;color:var(--muted);line-height:2;display:block}.brand-footer{padding:55px 5% 24px;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:25px}.footer-tagline{font:20px var(--serif);letter-spacing:3px}.footer-links{display:flex;gap:24px;font-size:12px}.footer-links a{display:inline-flex;align-items:center;min-height:44px}.footer-bottom{display:flex;justify-content:space-between;margin-top:45px;border-top:1px solid var(--line);padding-top:20px;font-size:10px;color:var(--muted);letter-spacing:1px}.footer-bottom a{min-height:30px}.mobile-nav{display:none}
.motion-ready [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.65,.25,1)}.motion-ready [data-reveal].is-visible{opacity:1;transform:none}
@media(min-width:1600px){.editorial-hero{min-height:760px}.hero-copy{padding-top:95px;padding-bottom:50px}.hero-title{font-size:88px}}
@media(max-width:1100px){.primary-nav{gap:16px}.nav-link{font-size:11px;gap:5px}.header-actions{gap:3px}.wordmark-cn{font-size:25px}.editorial-hero{min-height:570px}.hero-title{font-size:58px}.hero-copy{padding-top:45px}.hero-description{font-size:12px}.hero-bottom{gap:15px}.collection-link{padding:15px 12px;gap:12px}.collection-name{font-size:18px}.colour-tab{gap:7px;font-size:12px}.colour-track{gap:10px}.story-grid{gap:20px}.product-name{font-size:21px}.product-price{font-size:12px}.atelier-visual{min-height:570px}.atelier-copy{padding:55px 10%}}
@media(max-width:767px){.ostone-home{padding-bottom:calc(64px + env(safe-area-inset-bottom))}.edition-bar{min-height:25px;font-size:8px;letter-spacing:1.5px;padding:0 5%}.edition-bar .edition-en{display:none}.brand-header{min-height:80px;padding:17px 5%;gap:14px;flex-wrap:wrap}.wordmark-cn{font-size:25px;letter-spacing:6px}.wordmark-en{font-size:8px;letter-spacing:4px;margin-top:4px}.header-actions{gap:5px;margin-left:auto}.header-action{width:36px;height:42px}.primary-nav{order:3;flex-basis:100%;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:7px;margin-top:4px}.nav-link{font-size:10px;gap:6px;min-height:36px}.nav-icon{width:18px;height:18px}.editorial-hero{display:flex;flex-direction:column;min-height:0}.hero-copy{padding:36px 6% 34px;width:100%}.hero-edition{font-size:9px;letter-spacing:1.8px}.hero-title{font-size:44px;line-height:1.3;letter-spacing:3px;margin:23px 0 13px!important}.hero-title .line{display:inline}.hero-title .line:last-child:before{content:' ';display:block}.hero-italic{position:absolute;right:6%;top:109px;font-size:17px;writing-mode:vertical-rl;line-height:1.4}.hero-description{margin-top:8px!important;font-size:12px;letter-spacing:.6px}.hero-copy .round-link{margin-top:17px;min-height:44px;gap:20px;font-size:11px}.arrow-disc{width:37px;height:37px;font-size:22px}.hero-bottom{display:none}.hero-visual{height:94vw;max-height:580px;min-height:0;width:100%}.hero-caption{left:6%;right:6%;bottom:20px;font-size:10px}.hero-seal{top:20px;right:6%;width:57px;height:57px}.hero-seal em{font-size:21px}.hero-seal small{font-size:7px}.section-wrap{width:88%}.collection-row{grid-template-columns:1fr 1fr;padding:14px 0}.collection-link{min-height:84px;padding:15px 9px!important;gap:11px}.collection-link:nth-child(2){border-right:0}.collection-link:nth-child(-n+2){border-bottom:1px solid var(--line)}.collection-icon{width:27px;height:27px}.collection-name{font-size:17px;letter-spacing:1px}.collection-kind{font-size:9px;letter-spacing:0;margin-top:4px}.tiny-arrow{font-size:16px}.colour-intro{display:block;padding-top:52px;padding-bottom:25px}.eyebrow{font-size:9px;letter-spacing:2px}.section-title{font-size:30px;letter-spacing:2px;margin-top:13px!important}.section-note{font-size:12px;line-height:1.9;margin-top:17px!important;max-width:270px}.colour-track{width:100%;overflow:auto;padding:0 6%;gap:27px;scrollbar-width:none}.colour-track::-webkit-scrollbar{display:none}.colour-tab{flex:none;min-height:60px;font-size:12px;gap:9px}.tab-number{display:none}.colour-chip{width:11px;height:11px}.colour-story{padding:42px 0 26px;scroll-margin-top:60px}.story-heading{gap:15px;align-items:flex-start;margin-bottom:25px}.story-titleline{gap:12px}.story-number{font-size:14px;margin-top:8px}.story-title{font-size:29px;letter-spacing:2px;margin-bottom:9px!important}.story-description{font-size:12px;line-height:1.9;margin-top:12px!important}.story-palette{gap:4px;margin-top:6px;margin-bottom:0}.story-palette .colour-chip{width:13px;height:13px}.palette-note{display:none}.story-heading>div:first-child{flex:1}.story-grid,.colour-story:nth-of-type(even) .story-grid{grid-template-columns:1fr 1fr;gap:27px 16px}.product-card:first-child,.colour-story:nth-of-type(even) .product-card:first-child{grid-column:1/-1;grid-row:auto}.product-card:nth-child(2),.product-card:nth-child(3),.colour-story:nth-of-type(even) .product-card:nth-child(2),.colour-story:nth-of-type(even) .product-card:nth-child(3){margin-top:0;grid-column:auto;grid-row:auto}.product-visual{aspect-ratio:1}.product-card:first-child .product-visual{aspect-ratio:1.14}.product-card:first-child .product-photo{object-fit:contain}.product-view{width:30px;height:30px;bottom:12px;right:12px;font-size:19px}.product-kicker{font-size:8px;letter-spacing:1px;margin-top:12px}.product-info{display:block;margin-top:5px}.product-name{font-size:21px;line-height:1.5;display:block}.product-price{font-size:12px;display:block;margin-top:4px;line-height:1.7}.price-suffix{font-size:10px}.product-note{font-size:11px;margin-top:5px!important;line-height:1.8}.product-card:first-child .product-info{display:flex;align-items:baseline}.product-card:first-child .product-name{font-size:25px}.product-card:first-child .product-price{font-size:13px}.story-foot{margin-top:24px;padding-top:12px;font-size:10px;gap:8px}.story-styling{display:block;line-height:1.9}.story-styling span{display:block}.story-styling span:first-child{font-size:8px;letter-spacing:1.5px}.back-index{font-size:10px;gap:7px}.price-note{font-size:10px;padding:23px 0}.atelier{display:flex;flex-direction:column}.atelier-visual{min-height:0;height:100vw;max-height:570px}.atelier-copy{padding:44px 7% 48px}.atelier-title{font-size:33px;margin:23px 0 20px!important}.atelier-description{font-size:12px}.atelier-sign{font-size:22px;margin-top:30px}.guide{display:block;padding:21px 0}.guide-item{position:relative;padding:23px 0 23px 32px;border-bottom:1px solid var(--line)}.guide-item:last-child{border:0}.guide-number{position:absolute;left:0;top:28px;font-size:13px}.guide-title{font-size:21px;margin:0 0 6px!important}.guide-copy{font-size:11px}.brand-footer{padding:34px 6% 22px}.footer-top{display:block}.footer-top .wordmark{align-items:flex-start}.footer-tagline{font-size:18px;margin:25px 0 15px!important;display:block}.footer-links{gap:24px;font-size:11px}.footer-bottom{flex-direction:column;gap:10px;margin-top:25px;padding-top:19px;font-size:9px}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:40;background:#f7f5eff5;border-top:1px solid var(--line);min-height:calc(64px + env(safe-area-inset-bottom));padding:8px 3% calc(8px + env(safe-area-inset-bottom));justify-content:space-around;backdrop-filter:blur(14px)}.mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:10px;min-width:48px;min-height:46px}.mobile-nav img{width:22px;height:22px}.mobile-nav a[aria-current=page]{color:#526742}.mobile-nav a:active,.product-card:active{opacity:.72}}
@media(max-width:359px){.nav-link{font-size:9px;gap:4px}.hero-title{font-size:39px}.hero-italic{font-size:15px}.collection-name{font-size:15px}.collection-link{gap:8px}.story-title{font-size:27px}.product-name{font-size:19px}.colour-track{gap:23px}}
@media(prefers-reduced-motion:reduce){.ostone-home *, .ostone-home *:before,.ostone-home *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.motion-ready [data-reveal]{opacity:1;transform:none}}