:root{--paper:#f5f7fa;--ink:#1b2334;--muted:#707c8e;--teal:#0fa99c;--teal-dark:#068f88;--line:#e3e8ef;--white:#fff;--shadow:0 17px 42px #25334c0b;--round:19px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"SF Pro Display","Microsoft YaHei","PingFang SC",system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}h1,h2,h3,p{margin-top:0}button:disabled{cursor:not-allowed;opacity:.62}[hidden]{display:none!important}.wrap{width:min(1220px,calc(100% - 52px));margin:0 auto}.top-hint{height:34px;display:flex;align-items:center;justify-content:center;background:#132c36;color:#c7e9e8;font-size:11px;letter-spacing:.25px}.header{height:78px;position:sticky;top:0;z-index:20;background:#ffffffed;backdrop-filter:blur(15px);border-bottom:1px solid #e5e9ed}.nav{display:flex;height:100%;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}.brand-icon{background:#d7f5ef;color:#098f84;border-radius:14px;font-weight:900;font-size:28px;width:43px;height:43px;display:grid;place-items:center}.brand b{font-size:20px;display:block;letter-spacing:-.6px}.brand small{display:block;font-size:9px;letter-spacing:2.2px;color:#9ea4af;margin-top:2px;font-weight:800}.nav nav{display:flex;align-items:center;gap:32px;color:#5c6876;font-size:12px;font-weight:750}.nav nav>a:hover{color:var(--teal)}.nav-button{border:1px solid #cdece9;color:#088d86;background:#ecfaf7;padding:12px 15px;border-radius:9px;font-size:12px;font-weight:800}.hero{min-height:470px;padding:65px 0 67px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:30px}.eyebrow{display:inline-block;font-size:10px;font-weight:850;color:#0d9b91;letter-spacing:1.95px}.eyebrow.dark{color:#109f94}.hero h1{font-size:clamp(38px,4.4vw,61px);line-height:1.18;letter-spacing:-2.65px;margin:24px 0}.hero h1 em{font-style:normal;color:#11a79b}.hero-copy>p{font-size:15px;color:#6d7887;line-height:1.9}.hero-actions{display:flex;gap:12px;margin:30px 0 27px}.primary{border:0;color:white;background:linear-gradient(100deg,#0da99a,#0d9f95);padding:15px 22px;border-radius:12px;font-size:13px;font-weight:850;display:inline-flex;align-items:center;justify-content:center;gap:16px;box-shadow:0 11px 24px #0b9c9021;transition:filter .15s,transform .15s}.primary:hover:not(:disabled){filter:brightness(.94);transform:translateY(-1px)}.primary.full{width:100%}.secondary{border:1px solid #dce4eb;color:#4e5b67;background:white;padding:14px 20px;border-radius:12px;font-size:13px;font-weight:800}.microtrust{display:flex;gap:21px;color:#82909e;font-size:11px;font-weight:750;flex-wrap:wrap}.hero-display{height:350px;position:relative;display:flex;align-items:center;justify-content:center;isolation:isolate}.hero-display:before{content:"";position:absolute;width:390px;height:330px;max-width:90%;border-radius:60px;background:radial-gradient(circle,#cef1ec 0,#e3f1f4 45%,transparent 72%);filter:blur(6px)}.hero-stack{position:absolute;width:225px;height:275px;border:1px solid #fff8;border-radius:24px;padding:22px;box-shadow:0 20px 45px #265c6550;display:flex;flex-direction:column;justify-content:space-between;color:#2a4248;letter-spacing:-.4px}.hero-stack span{font-size:12px;font-weight:800;letter-spacing:3px}.hero-stack strong{font-size:24px;line-height:1.3}.hero-stack small{font-size:13px;font-weight:700;opacity:.6}.stack-a{background:linear-gradient(135deg,#caf4e8,#69dac5);z-index:3;left:17%;transform:rotate(-13deg)}.stack-b{background:linear-gradient(135deg,#e9e6ff,#c9c1f6);z-index:2;left:36%;transform:rotate(1deg)}.stack-c{background:linear-gradient(135deg,#ffeecf,#f1c991);z-index:1;left:54%;transform:rotate(13deg)}.hero-star{position:absolute;top:13px;right:6px;color:#13b6a8;font-size:28px}.announcement{display:flex;gap:18px;align-items:start;background:#fff;border:1px solid #cfe9e3;box-shadow:var(--shadow);border-radius:13px;padding:17px 21px;font-size:12px;line-height:1.8;color:#677480}.announcement>b{white-space:nowrap;color:#158f84}.catalog{padding:93px 0 115px}.catalog-title{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.catalog-title h2{font-size:37px;margin:11px 0 8px;letter-spacing:-1.3px}.catalog-title h2 .dot{color:var(--teal)}.catalog-title p{color:#7c8592;font-size:12px;margin:0}.catalog-search{min-width:280px;height:43px;background:#fff;border:1px solid #e1e7ea;border-radius:12px;display:flex;align-items:center;gap:9px;padding:0 12px;box-shadow:0 9px 25px #25334c07}.catalog-search>span:first-child{font-size:22px;color:#a0adb6}.catalog-search input{min-width:0;flex:1;border:0;outline:0;font-size:11px}.catalog-search>span:last-child{font-size:10px;color:#8f99a3;white-space:nowrap}.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.product-card{background:#fff;border:1px solid #e5e9ee;border-radius:19px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .16s,box-shadow .16s}.product-card:hover{transform:translateY(-4px);box-shadow:0 23px 44px #23364e16}.cover{height:222px;margin:11px 11px 0;border-radius:13px;background:#ecf6f5;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:end;padding:22px;color:#285d58}.cover::before{content:"";position:absolute;border:1px solid #ffffffa1;width:250px;height:250px;border-radius:50%;right:-90px;top:-70px;box-shadow:0 0 0 34px #ffffff32,0 0 0 68px #ffffff22}.cover.gradient-a{background:linear-gradient(145deg,#d8f6ed,#8addc5)}.cover.gradient-b{background:linear-gradient(145deg,#eae6ff,#bdb5f4)}.cover.gradient-c{background:linear-gradient(145deg,#fff1d8,#f3d2a5)}.cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.cover .tag{position:absolute;left:15px;top:15px;background:#ffffffdc;border:1px solid #ffffffcf;border-radius:7px;padding:7px 10px;font-size:9px;font-weight:850;color:#49857f;z-index:1}.large-mark{font-size:80px;color:#ffffff9c;position:absolute;right:25px;top:38px}.cover-text{position:relative;font-size:26px;font-weight:900;letter-spacing:-.9px;line-height:1.2;max-width:80%;z-index:1;word-break:break-word}.card-inner{padding:23px;display:flex;flex:1;flex-direction:column}.card-inner h3{font-size:17px;margin:2px 0 10px;letter-spacing:-.35px;line-height:1.45}.card-inner>p{color:#7c8793;font-size:12px;line-height:1.75;min-height:41px;margin:0 0 22px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-bottom{display:flex;border-top:1px solid #eef0f4;padding-top:19px;align-items:center;justify-content:space-between;gap:8px;margin-top:auto}.card-bottom>b{font-size:21px;letter-spacing:-.7px}.mini-btn{border:0;border-radius:30px;background:#d8f5ed;color:#078f85;padding:10px 15px;font-size:11px;font-weight:850;white-space:nowrap}.empty{background:white;text-align:center;border:1px dashed #ccd7df;padding:45px;border-radius:15px;color:#87919a}.steps-section{background:white;border-top:1px solid #e9edf0;border-bottom:1px solid #e9edf0;padding:91px 0 105px}.section-center{text-align:center}.section-center h2{font-size:34px;letter-spacing:-1.1px;margin:13px 0}.section-center p{color:#818a98;font-size:12px}.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;margin-top:37px}.step{border:1px solid #e7ebee;border-radius:17px;padding:24px;background:#fcfefd}.step>span{font-size:29px;line-height:1;color:#a4d9d1;font-weight:900;display:block;margin-bottom:37px}.step>b{display:block;font-size:15px;margin-bottom:11px}.step>p{font-size:11px;color:#87919c;line-height:1.8;margin:0}.footer{background:#182832;color:#d7e3e3}.footer-in{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:49px 0}.footer strong{font-size:18px}.footer p{font-size:11px;line-height:1.75;max-width:550px;color:#8da4aa;margin:12px 0 0}.footer-in>div:last-child{display:flex;gap:21px;align-items:center;font-size:11px;color:#9eafb3;flex-wrap:wrap}.footer button{background:none;border:0;color:inherit;padding:0}
/* Detail overlay */
dialog{border:0}dialog::backdrop{background:#15242cc4;backdrop-filter:blur(5px)}.sheet{position:fixed;inset:0;max-width:min(1120px,calc(100% - 28px));width:100%;height:min(93vh,1050px);max-height:93vh;background:#f6f8fa;border-radius:20px;padding:0;overflow-y:auto;box-shadow:0 40px 120px #15283260}.sheet-close{position:sticky;top:16px;float:right;z-index:5;margin:15px 17px -45px 0;background:#fff;border:1px solid #e1e6eb;border-radius:50%;width:36px;height:36px;font-size:24px;display:grid;place-items:center;line-height:1;color:#5e6872;box-shadow:0 5px 15px #15242c12}.sheet-inner{padding:31px}.product-head{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center;background:#fff;padding:20px;border:1px solid #e8edf0;border-radius:17px;margin-bottom:19px}.product-hero-img{height:315px;position:relative;display:grid;place-items:center;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#d7f8ee,#addcdb)}.product-hero-img>img{width:100%;height:100%;object-fit:cover}.product-hero-img>span{font-size:128px;color:#ffffffad}.product-info h2{font-size:29px;line-height:1.38;margin:15px 0 10px;letter-spacing:-1px}.product-info>p{color:#8995a0;font-size:13px;line-height:1.8}.price-box{border-top:1px solid #edf0f2;border-bottom:1px solid #edf0f2;margin:22px 0;padding:18px 0;display:flex;align-items:center;gap:15px}.price-box small{font-size:11px;color:#9da6ad}.price-box strong{font-size:30px;color:#d9645f}.price-box span{color:#9ca4a9;font-size:10px}.buy-benefits{display:flex;gap:14px;color:#409985;font-size:11px;font-weight:800}.buy-main{margin-top:22px}.detail-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(290px,.75fr);gap:19px;align-items:start}.rich-card,.form-card{border:1px solid #e8ecef;border-radius:16px;background:#fff;box-shadow:0 12px 28px #152b4010}.rich-card{min-height:420px;overflow:hidden}.card-head{padding:19px 24px;border-bottom:1px solid #ebeff0;display:flex;align-items:center;justify-content:space-between;gap:15px}.card-head span{font-size:16px;font-weight:900}.card-head small{font-size:11px;color:#97a1ac}.form-card{padding:24px;position:sticky;top:0}.form-card h3{font-size:18px;margin-bottom:8px}.form-note{font-size:11px;color:#8d97a2;line-height:1.8}.form-card label,.track-box label{font-size:11px;font-weight:800;display:block;margin:17px 0 0}.form-card label b{color:#e15d6c}.form-card label small{color:#a2a9b2;font-weight:400}.form-card label:not(.agree)>input,.form-card textarea,.track-box input{display:block;width:100%;margin-top:8px;border:1px solid #e2e8ed;background:#fbfcfd;border-radius:9px;padding:12px 12px;outline:none;color:#26313c;font-size:12px}.form-card textarea{resize:vertical}.form-card input:focus,.form-card textarea:focus,.track-box input:focus{border-color:#38bbab;box-shadow:0 0 0 3px #39bdae19}.form-card .agree{display:flex;align-items:start;gap:9px;line-height:1.8;font-weight:550;color:#657381}.agree input{margin-top:2px;width:17px;height:17px;accent-color:#0d9f95;flex:none}.checkout-price{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #edf1f3;margin-top:21px;padding:20px 0;color:#788491;font-size:12px}.checkout-price strong{color:#dc655f;font-size:21px}.pay-hint{font-size:11px;color:#ba6a3f;line-height:1.65}.payment-explain{font-size:10px;color:#8e9aa5;line-height:1.85;margin-top:17px}.error{color:#c83f51;font-size:11px;line-height:1.7;min-height:16px}.toast{position:fixed;z-index:100;bottom:24px;left:50%;transform:translate(-50%,30px);background:#1c3741;color:#fff;border-radius:10px;padding:12px 18px;font-size:12px;opacity:0;pointer-events:none;transition:all .2s}.toast.show{opacity:1;transform:translate(-50%,0)}.track-dialog{width:min(490px,calc(100% - 30px));max-width:490px;padding:0;border-radius:18px;box-shadow:0 40px 100px #15283250}.track-box{position:relative;padding:35px}.track-box h2{font-size:25px;margin:12px 0 10px}.track-box>p{font-size:12px;color:#818d97;line-height:1.8}.track-box .sheet-close{position:absolute;top:0;right:0;float:none}.track-box form{margin-top:25px}.track-box form button{margin-top:21px}.track-result{margin-top:22px;border-top:1px solid #e8eef1;padding-top:19px;font-size:12px}.track-result .state{font-weight:850;color:#078c80;background:#eaf9f4;border-radius:30px;padding:5px 9px;display:inline-block}.track-result p{color:#74808a;line-height:1.8}.track-result pre{white-space:pre-wrap;background:#f3f8f7;padding:13px;border-radius:10px;line-height:1.8;font-size:12px;word-wrap:break-word}
/* Markdown rich description */
.markdown-body{padding:26px;color:#3c4752;font-size:13px;line-height:1.95;overflow-wrap:anywhere}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:#22333b;line-height:1.5;letter-spacing:-.4px;margin:22px 0 11px}.markdown-body h1{font-size:23px}.markdown-body h2{font-size:20px;padding-bottom:9px;border-bottom:1px solid #e7edf0}.markdown-body h3{font-size:16px}.markdown-body p{margin:11px 0}.markdown-body ul,.markdown-body ol{padding-left:24px;margin:10px 0 16px}.markdown-body li{margin:6px 0}.markdown-body strong{color:#172c38}.markdown-body blockquote{margin:17px 0;padding:12px 16px;border-left:3px solid #28ad9f;background:#f1f9f7;color:#5b736f;border-radius:0 9px 9px 0}.markdown-body code{background:#edf4f3;border-radius:4px;padding:3px 5px;font:12px ui-monospace,monospace}.markdown-body a{color:#078e85;text-decoration:underline;text-underline-offset:3px}.markdown-body img{max-width:100%;height:auto;max-height:550px;object-fit:contain;border-radius:12px;border:1px solid #e8edee;margin:8px 0}.markdown-body hr{border:0;border-top:1px solid #e3eaed;margin:20px 0}.markdown-body>*:first-child{margin-top:0}
@media(max-width:980px){.hero{grid-template-columns:1fr 1fr}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.detail-layout{grid-template-columns:1fr}.form-card{position:static}.product-head{grid-template-columns:1fr 1fr}.sheet-inner{padding:20px}.step-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.wrap{width:calc(100% - 30px)}.top-hint{font-size:9px}.header{height:68px}.nav nav{gap:12px}.nav nav>a{display:none}.brand b{font-size:17px}.brand small{font-size:8px}.brand-icon{width:37px;height:37px}.nav-button{padding:10px 11px;font-size:10px}.hero{grid-template-columns:1fr;padding:49px 0 30px;gap:10px}.hero h1{font-size:39px;letter-spacing:-1.7px}.hero-copy>p{font-size:13px}.hero-display{height:280px}.hero-stack{width:160px;height:200px;border-radius:17px;padding:16px}.hero-stack strong{font-size:17px}.stack-a{left:10%}.stack-b{left:34%}.stack-c{left:57%}.hero-star{right:3px}.announcement{flex-direction:column;gap:4px;padding:14px}.catalog{padding:68px 0 73px}.catalog-title{display:block}.catalog-title h2{font-size:31px}.catalog-search{margin-top:22px;min-width:0}.catalog-grid{grid-template-columns:1fr;gap:15px}.cover{height:214px}.card-inner>p{min-height:0}.steps-section{padding:67px 0}.step-grid{grid-template-columns:1fr 1fr;gap:10px}.step{padding:17px}.step>span{font-size:23px;margin-bottom:21px}.step>b{font-size:13px}.step>p{font-size:10px}.footer-in{padding:35px 0;flex-direction:column;align-items:start}.sheet{max-width:100%;max-height:100%;height:100%;border-radius:0}.sheet-inner{padding:13px}.product-head{grid-template-columns:1fr;gap:10px;padding:11px}.product-hero-img{height:210px}.product-hero-img>span{font-size:78px}.product-info{padding:9px 12px 17px}.product-info h2{font-size:23px}.price-box{margin:14px 0}.product-info .buy-main{width:100%}.card-head{padding:16px}.markdown-body{padding:19px;font-size:12px}.form-card{padding:19px}.detail-layout{gap:12px}.sheet-close{top:8px;margin:8px 12px -36px 0}.track-box{padding:29px 24px}}

/* v3: buyer document attachment uploader */
.form-card .attachment-label>input[type=file]{display:block;width:100%;margin-top:9px;border:1px dashed #b9d8d4;background:#f6fcfa;border-radius:10px;padding:12px;font-size:11px;color:#355c60;cursor:pointer;max-width:100%}
.form-card .file-tip{display:block;color:#70878c;font-size:10px;font-weight:400;line-height:1.75;margin-top:8px;overflow-wrap:anywhere}