@charset "UTF-8";
:root{--paper:#faf9f6;--ink:#292824;--muted:#736f67;--line:#dedbd3;--accent:#735d4b}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:32px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}button{cursor:pointer;color:inherit}a,button{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
img{display:block;max-width:100%;height:auto}::selection{background:#e3ddd0}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.header,.catalog,.product-main,.footer{width:min(1240px,calc(100% - 96px));margin:0 auto}
.header{display:flex;align-items:center;justify-content:space-between;height:118px;border-bottom:1px solid var(--line);gap:25px}
.brand{font-family:Georgia,"Times New Roman",serif;font-size:36px;letter-spacing:-1.9px;white-space:nowrap}
.brand>span{color:#928c81;margin:0 3px}
.header nav{display:flex;gap:35px;align-items:center;font-size:13px}
.header nav a{padding:8px 0;border-bottom:1px solid transparent;color:var(--muted)}
.header nav a:hover,.header nav a.active{color:var(--ink);border-color:#858077}
.bag-button{background:none;border:0;padding:8px 0;font-size:13px;display:flex;align-items:center;gap:7px}
.bag-count{color:var(--muted);font-size:11px;font-variant-numeric:tabular-nums}.bag-count:before{content:"("}.bag-count:after{content:")"}
.intro{font-size:15px;font-weight:400;margin:35px 0 34px;line-height:1.9;color:#625f58}
.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
.product-card{min-width:0}
.cover,.detail-art{position:relative;background:radial-gradient(ellipse at 43% 25%,#f4f2ed 0%,#e8e5dc 100%);isolation:isolate}
.cover{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1;border:1px solid #e2dfd7;padding:0;overflow:hidden}
.cover:after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 45px #6b614808;pointer-events:none}
.cover img{width:100%;height:100%;object-fit:contain;transform:scale(1.07);transition:transform .55s cubic-bezier(.2,.7,.2,1)}
.cover:hover img{transform:scale(1.1) translateY(-3px)}
.card-heading{display:flex;justify-content:space-between;align-items:baseline;gap:15px;margin-top:23px}
.card-heading h2{font-family:"Helvetica Neue",Arial,sans-serif;font-size:24px;font-weight:400;letter-spacing:-.6px;line-height:1.3;margin:0}
.card-heading>span{color:var(--muted);font-size:11px}
.card-heading a:hover{color:var(--accent)}
.category{font-size:13px;color:var(--muted);margin:9px 0 21px;line-height:1.6}
.product-link{display:inline-block;font-size:12px;background:none;padding:0 0 5px;border:0;border-bottom:1px solid #a29a8c;margin-top:21px;color:#5d594f;transition:color .2s,border-color .2s}
.product-link:hover{color:var(--ink);border-color:var(--ink)}
.about{display:flex;gap:78px;align-items:baseline;border-top:1px solid var(--line);margin-top:61px;padding:32px 0 41px}
.about h2{font-size:14px;font-weight:400;margin:0;white-space:nowrap}.about p{font-size:13px;line-height:1.9;margin:0;color:var(--muted)}
.footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:24px 0 37px;font-size:11px;color:var(--muted);line-height:1.8}
.product-main{padding:29px 0 66px}.back-link{font-size:12px;color:var(--muted);display:inline-block;margin-bottom:27px}.back-link:hover{color:var(--ink)}
.product-detail{display:grid;grid-template-columns:56% 44%;align-items:start}
.detail-art{margin:0;min-width:0;display:flex;align-items:center;justify-content:center;min-height:506px;border:1px solid #e2dfd7;overflow:hidden}
.detail-art img{width:100%;transform:scale(1.02)}.detail-art figcaption{position:absolute;bottom:20px;left:23px;color:var(--muted);font-size:11px}
.detail-copy{padding:18px 0 0 58px;min-width:0}
.detail-copy>h1{font-size:43px;letter-spacing:-1.3px;font-weight:400;line-height:1.2;margin:0 0 19px}
.product-description{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 40px}
.purchase{border-top:1px solid var(--line);padding-top:28px;margin-top:27px}
.price{font-size:18px;margin:0 0 21px}
.button{display:inline-block;background:var(--ink);color:var(--paper);border:1px solid var(--ink);font-size:13px;min-height:45px;min-width:165px;padding:13px 32px;text-align:center;transition:background .2s,transform .2s}
.button:hover{background:#47433c}.button:active{transform:translateY(1px)}
.purchase-note{font-size:11px;line-height:1.8;color:var(--muted);margin:15px 0 25px}
.specifications{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
summary{cursor:pointer;display:flex;justify-content:space-between;list-style:none;padding:18px 0;font-size:13px;color:#625d53}summary::-webkit-details-marker{display:none}summary>span{font-size:13px;color:#837b6d}details[open] summary>span{transform:rotate(45deg)}
dl{font-size:12px;margin:0 0 12px;color:var(--muted)}dl>div{display:flex;justify-content:space-between;gap:25px;padding:11px 0}dd{margin:0}
dialog{width:425px;max-width:calc(100vw - 32px);padding:28px;border:1px solid var(--line);color:var(--ink);background:var(--paper);box-shadow:0 15px 80px #28251a1f}dialog::backdrop{background:#27241d3d}
.dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}.dialog-head h2{font-size:20px;font-weight:400;margin:0}.dialog-head button{border:0;background:none;font-size:24px;line-height:1;padding:0 2px}
.bag-body{padding:25px 0;min-height:100px}.empty-bag{color:var(--muted);font-size:13px;margin:0 0 15px}.text-link{font-size:13px;color:var(--accent);text-decoration:underline}
.bag-item{display:flex;align-items:center;gap:18px}.bag-item img{width:100px;background:#eae6dc}.bag-item strong{font-size:16px;font-weight:400}.bag-item p{font-size:12px;color:var(--muted)}.bag-item button{padding:4px 0;border:0;background:none;font-size:12px;text-decoration:underline;color:var(--muted)}
.bag-note{border-top:1px solid var(--line);padding-top:17px;font-size:12px;color:var(--muted);margin:0}.concept-description{font-size:13px;color:var(--muted);line-height:1.9;margin:23px 0 5px}
.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,10px);font-size:12px;background:var(--ink);color:var(--paper);padding:13px 19px;opacity:0;pointer-events:none;transition:.2s;max-width:calc(100% - 32px);white-space:nowrap;z-index:10}.toast.visible{opacity:1;transform:translate(-50%,0)}
@media(min-width:1600px){.header{height:135px}.intro{margin-top:42px}.catalog{padding-bottom:20px}}
@media(max-width:1050px){.header,.catalog,.product-main,.footer{width:calc(100% - 64px)}.product-grid{gap:23px}.card-heading h2{font-size:22px}.track{grid-template-columns:30px minmax(0,1fr) auto;column-gap:9px}.play{width:30px;height:30px}.track-name strong{font-size:11px}.track-time{font-size:9px}.detail-copy{padding-left:34px}.detail-art{min-height:420px}.detail-copy>h1{font-size:37px}.product-description{margin-bottom:28px}}
@media(max-width:680px){.header,.catalog,.product-main,.footer{width:calc(100% - 40px)}.header{height:90px;gap:15px}.brand{font-size:27px;letter-spacing:-1.4px}.header nav{gap:17px;font-size:12px}.bag-button{font-size:12px}.intro{font-size:14px;margin:27px 0 28px}.product-grid{grid-template-columns:1fr;gap:40px}.cover{aspect-ratio:1.08}.cover img{transform:scale(1.08)}.card-heading{margin-top:20px}.card-heading h2{font-size:25px}.category{font-size:13px;margin:8px 0 16px}.track{grid-template-columns:40px minmax(0,1fr) auto;column-gap:13px;min-height:72px}.play{width:40px;height:40px;font-size:10px}.track-name strong{font-size:12px}.track-time{font-size:10px}.seek-shell,.seek{height:32px}.pending-audio{min-height:72px}.product-link{margin-top:20px}.sample-note{margin-top:28px}.about{gap:32px;margin-top:43px;padding:28px 0 33px}.about p{font-size:12px}.footer{flex-direction:column;gap:7px;padding:22px 0 31px;font-size:10px}.product-main{padding:24px 0 44px}.back-link{margin-bottom:23px}.product-detail{grid-template-columns:1fr;gap:30px}.detail-art{min-height:0;aspect-ratio:1.08}.detail-art figcaption{font-size:10px;bottom:15px;left:17px}.detail-copy{padding:0}.detail-copy>h1{font-size:35px;margin:0 0 14px}.product-description{font-size:14px;margin-bottom:29px}.product-audio .track{grid-template-columns:40px minmax(0,1fr) auto;column-gap:13px}.product-audio .play{width:40px;height:40px}.purchase{margin-top:26px;padding-top:24px}.price{font-size:18px}.button{min-width:180px}.purchase-note{margin-bottom:24px}}
@media(max-width:370px){.brand{font-size:25px}.header nav{gap:14px;font-size:11px}.bag-button{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* Real product catalog and original screenshot galleries. */
.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
.cover{aspect-ratio:1.5;padding:24px;background:#e8e9e8}
.cover-alto-lab{background:radial-gradient(ellipse at 40% 25%,#f3f5f6,#dce2e7);border-color:#dce1e4}
.cover-smart-drum{background:radial-gradient(ellipse at 40% 25%,#22343a,#0e1a20);border-color:#243239}
.cover img{width:100%;height:auto;max-height:100%;object-fit:contain;transform:none;border:1px solid #ffffff21;box-shadow:0 12px 28px #11182026;transition:transform .4s,box-shadow .4s}
.cover:hover img{transform:translateY(-3px);box-shadow:0 16px 35px #11182030}
.card-heading h2{font-size:27px}.category{margin:10px 0 12px;font-size:14px;color:#45443f}
.card-description{font-size:13px;line-height:1.9;color:var(--muted);margin:0 0 22px}
.card-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:19px}
.card-bottom>span{font-size:11px;color:var(--muted)}.card-bottom .product-link{margin:0}
.product-detail{grid-template-columns:minmax(0,62%) minmax(0,38%)}
.detail-copy{padding:9px 0 0 43px}.detail-copy>h1{font-size:37px;letter-spacing:-.8px;margin:13px 0 13px}
.product-platform{margin:0;font-size:11px;line-height:1.7;color:var(--muted)}
.product-kind{font-size:16px;line-height:1.7;margin:0 0 21px}
.product-description{font-size:13px;line-height:1.95;margin:0 0 21px}
.product-points{list-style:none;margin:0;padding:0;font-size:12px;color:#625e55;line-height:1.9}
.product-points li{position:relative;padding-left:13px;margin:7px 0}
.product-points li:before{content:"";position:absolute;left:0;top:.85em;width:3px;height:3px;background:#9e9688}
.purchase{margin-top:24px;padding-top:24px}.purchase-note{font-size:11px;margin-bottom:0}
.gallery{min-width:0}
.gallery-main{position:relative;display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1.5;padding:15px;border:1px solid #dce1e4;background:#e9edf0;cursor:zoom-in;overflow:hidden}
.gallery-smart-drum{background:#122128;border-color:#243239}
.gallery-image{width:100%;height:100%;object-fit:contain;box-shadow:0 5px 20px #11182012}
.gallery-main>span{position:absolute;right:14px;bottom:12px;padding:5px 9px;background:#faf9f6ed;color:#393832;font-size:10px;opacity:0;transition:opacity .2s}
.gallery-main:hover>span,.gallery-main:focus-visible>span{opacity:1}
.gallery-thumbs{display:flex;gap:10px;overflow-x:auto;padding:14px 1px 9px;scrollbar-width:thin;scrollbar-color:#c5bfae transparent;overscroll-behavior-x:contain}
.gallery-thumb{flex:0 0 87px;border:1px solid transparent;padding:5px;background:transparent;color:var(--muted);text-align:left;transition:border-color .2s}
.gallery-thumb img{width:75px;height:49px;object-fit:contain;background:#e7e9e9}
.gallery-thumb span{display:block;white-space:nowrap;font-size:10px;margin-top:8px;line-height:1.5}
.gallery-thumb[aria-pressed="true"]{border-color:#9e9688;color:var(--ink)}
.gallery-thumb:hover{border-color:#c5bfae}
.gallery-caption{font-size:11px;line-height:1.85;color:var(--muted);margin:10px 0 0;min-height:42px;max-width:700px}
.product-information{margin-top:50px;max-width:100%;border-top:1px solid var(--line)}
.product-information .specifications{border-top:0}
.product-information summary{font-size:14px;padding:22px 0}
.product-information dl{margin:0 0 21px;max-width:980px;font-size:12px;line-height:1.8}
.product-information dl>div{display:grid;grid-template-columns:175px minmax(0,1fr);gap:24px;padding:12px 0;border-top:1px solid #e6e2da}
.product-information dt{color:#48453e}.product-information dd{color:var(--muted)}
.product-information details>p{font-size:13px;color:var(--muted);line-height:2.1;max-width:900px;margin:0 0 24px}
.other-product{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:35px;font-size:13px}
.other-product>span{font-size:11px;color:var(--muted)}.other-product a:hover{color:var(--accent)}
.bag-dialog{max-height:85dvh}.bag-item+.bag-item{padding-top:20px;margin-top:20px;border-top:1px solid var(--line)}
.bag-product-name{font-size:16px}.bag-item img{object-fit:contain;background:#e7e9e9}
.image-dialog{width:calc(100vw - 48px);max-width:1700px;max-height:calc(100dvh - 48px);padding:16px 20px 15px;background:#f8f7f3}
.image-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:13px;font-size:12px;color:var(--muted)}
.image-toolbar>div{display:flex;align-items:center;gap:15px}.image-toolbar button{background:none;border:0;padding:9px 6px;font-size:13px;min-width:30px}.image-toolbar button:hover,.image-original:hover{color:var(--ink)}
.image-original{font-size:12px}.zoom-image{width:100%;height:min(73dvh,1000px);object-fit:contain;background:#eeefec}
.zoom-caption{font-size:12px;line-height:1.8;margin:13px 0 0;color:#625e55}
@media(hover:none){.gallery-main>span{opacity:1}}
@media(max-width:1050px){.cover{padding:18px}.product-grid{gap:25px}.detail-copy{padding-left:30px}.detail-copy>h1{font-size:31px}.product-kind{font-size:14px}.gallery-main{padding:10px}.gallery-thumb{flex-basis:77px}.gallery-thumb img{width:65px;height:43px}}
@media(max-width:850px){.product-detail{grid-template-columns:minmax(0,1fr);gap:28px}.detail-copy{padding:0;max-width:680px}.detail-copy>h1{font-size:36px}.product-description{max-width:590px}.product-points{display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.purchase{margin-top:22px}.gallery-main{aspect-ratio:1.6}}
@media(max-width:680px){.product-grid{grid-template-columns:minmax(0,1fr);gap:39px}.cover{aspect-ratio:1.4;padding:13px}.cover img{transform:none}.card-heading h2{font-size:25px}.card-description{font-size:12px;margin-bottom:18px}.card-bottom{padding-top:16px}.card-bottom>span{font-size:10px}.category{font-size:13px;margin:8px 0 10px}.gallery-main{aspect-ratio:1.48;padding:7px}.gallery-main>span{right:7px;bottom:7px;font-size:9px;padding:4px 6px}.gallery-thumbs{gap:7px;padding-top:11px}.gallery-thumb{flex-basis:73px;padding:4px}.gallery-thumb img{width:63px;height:41px}.gallery-thumb span{font-size:9px}.gallery-caption{font-size:10px;min-height:0}.detail-copy>h1{font-size:33px}.product-kind{font-size:15px}.product-description{font-size:13px}.product-points{display:block;font-size:12px}.product-information{margin-top:37px}.product-information summary{font-size:13px;padding:20px 0}.product-information dl>div{grid-template-columns:85px minmax(0,1fr);gap:17px;font-size:11px}.product-information details>p{font-size:12px}.image-dialog{width:calc(100vw - 20px);max-width:calc(100vw - 20px);max-height:calc(100dvh - 20px);padding:12px}.image-toolbar{gap:8px;font-size:11px}.image-toolbar>div{gap:8px}.image-original{font-size:10px}.zoom-image{height:60dvh}.zoom-caption{font-size:11px}.image-toolbar button{font-size:12px}.bag-item img{width:86px}}