.pindou-site{--ink:#111;--muted:#666;--line:#e8e8e8;color:var(--ink);background:#fff;font-family:"DM Sans","Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;margin:0}
.pindou-site *{box-sizing:border-box}.pindou-site [hidden]{display:none!important}.pindou-site a{color:inherit;text-decoration:none}.pindou-site a:hover{color:#333}.pindou-site button,.pindou-site input,.pindou-site textarea{font:inherit}.pindou-site :focus-visible{outline:2px solid #111;outline-offset:3px}.pindou-site button{cursor:pointer}.pindou-site button:disabled{cursor:default;color:#777;background:#f2f2f2}.pindou-site h1,.pindou-site h2,.pindou-site h3{font-weight:600;letter-spacing:-.04em}.pindou-site p{margin:0 0 12px}.pindou-site main,.site-header,.site-footer{width:90%;max-width:1500px;margin:auto}.site-header{height:100px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.wordmark{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:700;letter-spacing:-.04em}.brand-symbol{color:#c9252d;font-size:32px}.wordmark small{font-size:9px;letter-spacing:.12em;color:#c9252d;border-left:1px solid var(--line);padding-left:12px;max-width:64px;line-height:1.4}.site-header nav{display:flex;gap:32px;font-size:13px}.pindou-site .button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:46px;padding:10px 22px;border:0;border-radius:999px;font-size:13px;font-weight:700;line-height:1.5}.pindou-site .button-dark{background:#111;color:#fff}.pindou-site .button-dark:hover{background:#333;color:#fff}.pindou-site .button-light{background:#f2f2f2;color:#111}.pindou-site .button-light:hover{background:#e8e8e8}.account{font-size:12px!important;min-height:36px!important}.hero{display:grid;grid-template-columns:1fr 1fr;gap:7%;padding:72px 0;align-items:center}.eyebrow{font-size:11px;letter-spacing:.12em;color:#666;font-weight:600;margin-bottom:20px!important}.hero h1{font-size:clamp(40px,4.2vw,54px);line-height:1.16;margin:24px 0}.title-serif{font-family:"Noto Serif SC","Songti 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.eyebrow{margin-bottom:12px!important}.section-heading>a{font-size:13px;flex-shrink:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:72px}.feature-card{border:1px solid var(--line);border-radius:8px;padding:28px;display:flex;flex-direction:column;transition:background .2s}.feature-card:hover{background:#f7f7f7}.feature-card small{font-size:10px;letter-spacing:.09em;color:#777}.feature-icon{font-size:38px;line-height:1.4;margin:20px 0}.feature-card h3{font-size:20px}.feature-card p{color:#666;font-size:14px}.feature-card>span:last-child{font-size:13px;margin-top:18px}.drawing-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-bottom:48px}.drawing-card{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;min-width:0}.drawing-card .drawing-image{width:100%;aspect-ratio:1;object-fit:contain;background:#f7f7f7}.drawing-card-copy{padding:16px}.drawing-card h3{font-size:18px;letter-spacing:-.02em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.drawing-card p{font-size:12px;color:#777;margin-bottom:12px}.card-action{font-size:13px;display:flex;justify-content:space-between}.empty-state{grid-column:1/-1;background:#f7f7f7;padding:48px 24px;text-align:center;color:#666;border-radius:8px}.empty-state a{display:block;margin-top:16px;color:#111;text-decoration:underline}.how-it-works{border-top:1px solid var(--line);padding:56px 0 72px}.how-it-works h2{font-size:36px;margin-bottom:36px}.how-it-works>div{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.how-it-works b{display:block;font-size:16px;font-weight:600}.how-it-works span{display:block;color:#666;font-size:14px;margin-top:12px}.site-footer{border-top:1px solid var(--line);padding:36px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px;color:#666;font-size:12px}.site-footer .wordmark{color:#c9252d;margin-bottom:10px}.site-footer>div:nth-child(2){display:flex;gap:24px;flex-wrap:wrap}.footer-bottom{width:100%;font-size:10px;letter-spacing:.14em;border-top:1px solid var(--line);padding-top:24px;margin-top:16px!important}.page-heading{padding:56px 0 36px}.page-heading h1{font-size:52px;line-height:1.16;margin-bottom:16px}.page-heading>p:last-child{color:#666}.route-view{padding-bottom:72px}.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);gap:24px}.settings-panel,.preview-panel,.materials-panel{border:1px solid var(--line);border-radius:8px;background:#fff;min-width:0}.settings-panel{padding:24px;align-self:start}.panel-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.panel-heading h2{font-size:18px;margin:0}.panel-heading span{font-size:11px;color:#777}.settings-panel label:not(.upload-zone){display:flex;justify-content:space-between;gap:12px;font-size:13px;margin:18px 0 8px}.settings-panel 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input{width:20px;height:20px;accent-color:#111;flex-shrink:0}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;padding:16px;gap:12px;flex-wrap:wrap;border-bottom:1px solid var(--line)}.view-tabs{display:flex;background:#f2f2f2;border-radius:999px;padding:4px}.view-tabs button{border:0;background:transparent;border-radius:999px;padding:8px 16px;font-size:12px;min-height:38px}.view-tabs .active{background:#fff;color:#111;box-shadow:0 1px 3px #0001}.preview-toolbar>span{font-size:12px;color:#777}.preview-stage{min-height:440px;height:clamp(440px,48vw,640px);overflow:auto;display:flex;align-items:flex-start;justify-content:flex-start;background:repeating-conic-gradient(#f4f4f4 0% 25%,#fafafa 0% 50%) 50%/24px 24px;position:relative;padding:24px}.preview-empty{margin:auto;text-align:center;color:#777}.preview-empty>span{font-size:64px;color:#aaa}.preview-empty h3{font-size:20px;color:#333}.preview-empty p{font-size:13px}.preview-stage>canvas{margin:auto;display:block;max-width:none}.preview-stage #three-container{position:absolute;inset:0;background:#f2f0ec}.export-toolbar{display:flex;gap:8px;padding:16px;border-top:1px solid var(--line);flex-wrap:wrap}.export-toolbar button,.import-button{border:1px solid var(--line);background:#fff;border-radius:999px;min-height:44px;padding:8px 14px;font-size:12px;display:inline-flex;align-items:center;position:relative;overflow:hidden}.export-toolbar button:hover:not(:disabled){background:#f2f2f2}.workspace-hint{color:#666;font-size:12px;padding:0 16px 12px}.materials-panel{margin-top:24px;padding:24px}.materials-panel .section-heading{margin-bottom:24px;align-items:center}.materials-panel h2{font-size:22px}.materials-panel .section-heading span{font-size:13px;color:#777}.material-grid{display:flex;flex-wrap:wrap;gap:16px}.material{display:flex;align-items:center;gap:10px;min-width:105px}.material-swatch{width:42px;height:42px;border-radius:8px;border:1px solid #0002}.material strong{display:block;font-size:13px}.material small{color:#666;font-size:12px}.search-form{display:flex;gap:12px;margin-bottom:36px;max-width:760px}.search-form input{border:1px solid var(--line);border-radius:999px;min-height:48px;padding:12px 22px;width:100%;min-width:0}.pagination{display:flex;justify-content:center;align-items:center;gap:20px;font-size:13px}.pagination button{min-height:44px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px}.narrow-view{max-width:760px;margin:auto}.upload-notice{border:1px solid var(--line);border-left:3px solid #111;border-radius:8px;background:#f7f7f7;padding:24px;margin-bottom:24px}.upload-notice strong{font-size:18px}.upload-notice p{color:#666;font-size:14px;margin:8px 0 0}.submission-form{border:1px solid var(--line);border-radius:8px;padding:32px}.submission-form>label:not(.upload-zone){display:flex;justify-content:space-between;margin:16px 0 8px;font-size:14px}.submission-form label span{color:#666;font-size:12px}.submission-form>input,.submission-form textarea{border:1px solid var(--line);border-radius:8px;width:100%;padding:12px;min-height:48px}.submission-form .upload-zone{margin:24px 0}.submission-form .check-row{margin:24px 0!important;font-size:13px}.submission-form>a{font-size:13px}.back-link{display:inline-block;padding:32px 0;font-size:13px}.detail-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:48px}.detail-layout>img{width:100%;max-height:800px;object-fit:contain;background:#f7f7f7;border-radius:8px}.detail-layout h1{font-size:44px;line-height:1.18}.detail-layout p{color:#666;white-space:pre-wrap}.detail-actions{display:flex;gap:12px;margin:24px 0;flex-wrap:wrap}.error-text{color:#b42318!important}.success-text{color:#16794b!important}#generate-status,#submission-status{font-size:13px;margin-top:16px}.retry-button{border:0;text-decoration:underline;background:transparent;min-height:44px}
@media(max-width:1000px){.wordmark small{display:none}.site-header nav{gap:20px}.workspace{grid-template-columns:240px minmax(0,1fr)}.drawing-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-art{padding:16px}.art-bottom>span:last-child{display:none}.hero-facts{gap:12px}.hero-facts span+span{padding-left:12px}.detail-layout{gap:24px}}
@media(max-width:700px){.pindou-site main,.site-header,.site-footer{width:88%;min-width:0}.site-header{height:auto;min-height:88px;padding:16px 0;flex-wrap:wrap;gap:12px}.wordmark{font-size:18px}.site-header nav{order:3;width:100%;justify-content:space-between;font-size:12px;gap:8px}.account{padding:8px 12px!important}.hero{grid-template-columns:1fr;padding:40px 0 56px;gap:32px}.hero h1{font-size:32px;line-height:1.18}.hero-description{font-size:14px}.hero-actions{margin:24px 0;flex-wrap:wrap}.hero-art{aspect-ratio:1.15}.hero-art canvas{width:64%}.hero-facts{font-size:10px}.section-heading{margin-bottom:24px;align-items:end}.section-heading h2{font-size:28px}.section-heading>a{font-size:12px}.feature-grid{grid-template-columns:1fr;gap:12px;margin-bottom:56px}.feature-card{padding:20px;position:relative}.feature-icon{position:absolute;right:24px;top:20px;margin:0;font-size:32px}.feature-card h3{font-size:18px;margin-top:16px}.feature-card p{font-size:13px}.feature-card>span:last-child{margin-top:8px}.drawing-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.drawing-card-copy{padding:12px}.drawing-card h3{font-size:16px}.drawing-card p{font-size:11px}.card-action{font-size:12px}.how-it-works{padding:36px 0 56px}.how-it-works h2{font-size:28px}.how-it-works>div{grid-template-columns:1fr;gap:20px}.site-footer>div:nth-child(2){gap:16px}.page-heading{padding:36px 0 24px}.page-heading h1{font-size:36px}.page-heading>p:last-child{font-size:14px}.workspace{grid-template-columns:1fr;gap:16px}.settings-panel{padding:20px}.preview-stage{height:420px;min-height:320px;padding:16px}.preview-toolbar{padding:12px}.view-tabs{width:100%;justify-content:space-between}.view-tabs button{min-height:44px;padding:6px 12px}.export-toolbar{padding:12px}.material-grid{gap:12px}.materials-panel{padding:20px}.materials-panel .section-heading{align-items:start}.material{min-width:90px}.search-form{gap:8px}.search-form input{padding:10px 16px}.search-form .button{padding:10px 16px}.submission-form{padding:20px}.detail-layout{grid-template-columns:1fr}.detail-layout h1{font-size:34px}.detail-layout>img{max-height:600px}.route-view{padding-bottom:56px}.empty-state{padding:32px 16px}}
.pindou-site .preview-frame{position:relative}
.pindou-site .visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.pindou-site .preview-stage{padding-bottom:76px}
.pindou-site .preview-stage>canvas{flex:none}
.pindou-site .zoom-controls{position:absolute;right:16px;bottom:16px;display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px;background:#fff;box-shadow:0 2px 12px #0001}
.pindou-site .zoom-controls button{height:40px;min-width:58px;padding:0 12px;border:0;border-radius:999px;background:#fff;font-size:12px;white-space:nowrap}
.pindou-site .zoom-controls button:hover:not(:disabled){background:#f2f2f2}
.pindou-site .export-toolbar{gap:12px;align-items:center}
.pindou-site .export-toolbar button,.pindou-site .import-button{height:46px;min-height:46px;margin:0;padding:0 16px;justify-content:center;line-height:1;white-space:nowrap;font-weight:400}
.pindou-site .square-heading{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0 24px}
.pindou-site .square-heading h1{font-size:52px;line-height:1.16;white-space:nowrap;flex:none;margin:0}
.pindou-site .square-heading .search-form{flex:1;max-width:700px;margin:0;min-width:0}
.pindou-site .search-form .button{white-space:nowrap;flex:none;height:48px}
.pindou-site .search-form label{white-space:nowrap;flex:none}
.pindou-site .square-subnav{display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:24px}
.pindou-site .square-breadcrumb{display:flex;gap:8px;font-size:12px;color:#777;flex-wrap:wrap}
.pindou-site .square-breadcrumb a{color:#333}
.pindou-site .square-sort{display:flex;flex:none;gap:8px}
.pindou-site .square-sort button,.pindou-site .category-filters button{border:1px solid var(--line);border-radius:999px;background:#fff;padding:8px 16px;min-height:38px;font-size:12px;white-space:nowrap}
.pindou-site .square-sort button.active,.pindou-site .category-filters button.active{background:#111;color:#fff;border-color:#111}
.pindou-site .category-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.pindou-site select{font:inherit}
.pindou-site .submission-form select,.pindou-site .drawing-properties input{border:1px solid var(--line);border-radius:8px;padding:12px;width:100%;min-height:48px;background:#fff}
.pindou-site .drawing-properties{border:0;border-top:1px solid var(--line);padding:24px 0 0;margin-top:24px;min-width:0}
.pindou-site .drawing-properties legend{font-size:16px;width:auto;float:none;margin-bottom:16px}
.pindou-site .drawing-properties legend small{display:block;font-size:12px;color:#777;margin-top:4px}
.pindou-site .property-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:16px}
.pindou-site .drawing-properties label{display:block;font-size:13px}
.pindou-site .drawing-properties input,.pindou-site .drawing-properties select{display:block;margin-top:8px}
.pindou-site .drawing-attributes{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;border-top:1px solid var(--line);padding-top:24px;font-size:14px}
.pindou-site .drawing-attributes dt{font-weight:400;color:#777}
.pindou-site .drawing-attributes dd{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
.pindou-site .shared-row{display:flex;align-items:center;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.pindou-site .shared-row>div{flex:1;min-width:0}
.pindou-site .shared-row h2{font-size:18px;overflow-wrap:anywhere;margin-bottom:8px}
.pindou-site .shared-row p{font-size:12px;color:#777;margin:0}
.pindou-site .shared-state,.pindou-site .shared-row>a{font-size:12px;white-space:nowrap}
.pindou-site .shared-row>a{text-decoration:underline}
.pindou-site #shared-pagination{margin-top:24px}
@media(max-width:700px){
 .pindou-site .square-heading{gap:12px;padding:36px 0 20px}
 .pindou-site .square-heading h1{font-size:clamp(20px,4.8vw,30px)}
 .pindou-site .square-heading .search-form{gap:6px}
 .pindou-site .square-heading .search-form input{padding:8px 12px;font-size:12px;height:44px;min-height:44px}
 .pindou-site .square-heading .search-form .button{height:44px;min-height:44px;padding:0 12px;font-size:12px}
 .pindou-site .square-subnav{gap:8px}
 .pindou-site .square-sort{gap:4px}
 .pindou-site .square-sort button{padding:6px 10px;min-height:44px}
 .pindou-site .square-breadcrumb{font-size:11px;gap:4px}
 .pindou-site .zoom-controls{right:12px;bottom:12px}
 .pindou-site .zoom-controls button{height:44px}
 .pindou-site .shared-row{flex-wrap:wrap}
 .pindou-site .shared-row>div{flex-basis:100%}
}
@media(prefers-reduced-motion:reduce){.pindou-site *{transition:none!important;scroll-behavior:auto!important}}
.pindou-site .drawing-review-bar-fill.waiting,.pindou-site #drawing-review-bar-fill.waiting{animation:review-wait 1.4s ease-in-out infinite}
@keyframes review-wait{0%{transform:translateX(-100%)}100%{transform:translateX(300%)}}
@media(prefers-reduced-motion:reduce){.pindou-site #drawing-review-bar-fill.waiting{animation:none}}
@media(max-width:700px){#home-view>.section-heading{flex-direction:column;align-items:flex-start;gap:12px}}
.pindou-site .drawing-preview-wrap{position:relative;margin:16px 0 24px;min-height:80px}.pindou-site .drawing-preview-wrap .source-preview{margin:0;width:100%}.pindou-site .drawing-review-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;background:#111b;color:#fff;border-radius:8px;text-align:center}.pindou-site .drawing-review-overlay strong{font-size:20px}.pindou-site .drawing-review-overlay span{font-size:13px}.pindou-site .drawing-review-bar{height:6px;width:min(260px,70%);background:#fff6;border-radius:4px;overflow:hidden}.pindou-site .drawing-review-bar i{display:block;height:100%;width:0;background:#fff;transition:width .25s ease}.pindou-site .drawing-review-dialog{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:20px;background:#0008}.pindou-site .drawing-review-dialog-box{width:min(420px,100%);padding:28px;border-radius:8px;background:#fff;box-shadow:0 12px 40px #0004}.pindou-site .drawing-review-dialog-box h2{margin:0 0 12px;font-size:22px}.pindou-site .drawing-review-dialog-box p{color:#555;line-height:1.7}.pindou-site .drawing-review-dialog-box>div{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}
.settings-panel .check-row { min-height:44px; }
#processing-login a { display:inline-block; min-height:44px; padding:10px 0; text-decoration:underline; }
.scan-login { width:min(360px,calc(100% - 32px)); border:1px solid #e8e8e8; border-radius:16px; padding:24px; text-align:center; }
.scan-login::backdrop { background:#0006; }
.scan-login h2 { font-size:20px; }
.scan-login img { width:240px; max-width:100%; }
.scan-login p { font-size:14px; color:#666; }
.scan-login-actions { display:flex; gap:12px; justify-content:center; }
#processing-login-button { border:0; background:transparent; padding:10px 0; min-height:44px; text-decoration:underline; }