:root{--primary:#0f766e;--primary-dark:#115e59;--ink:#17334a;--muted:#53677a;--bg:#f4faf9;--card:#fff;--border:#cbdeda;--danger:#ad3041;--focus:#ea580c;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans CJK SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-size:16px;line-height:1.6}a{color:inherit}button,input,textarea{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.container{width:min(100% - 40px,1080px);margin-inline:auto}.skip-link{position:absolute;top:-60px;left:12px;padding:8px 14px;background:#fff;z-index:10}.skip-link:focus{top:12px}.site-header{background:#fff;border-bottom:1px solid var(--border)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:760;font-size:18px;text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;color:#fff;background:var(--primary);font-size:23px;line-height:1}.nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px 24px}.nav a,.nav-button{padding:8px 0;text-decoration:none;color:var(--muted);font-size:14px;font-weight:600}.nav a:hover,.nav-button:hover{color:var(--primary)}.nav form{margin:0}.nav-button{border:0;background:none;cursor:pointer}.page{flex:1;padding-block:46px 80px}.site-footer{padding:24px 0;border-top:1px solid var(--border);font-size:13px;color:var(--muted);background:#fff}.hero{padding:18px 0 56px}.eyebrow{margin:0 0 10px;color:var(--primary);font-size:12px;letter-spacing:.15em;font-weight:800}.hero h1,.page-heading h1,.detail-heading h1,.login-card h1{margin:0 0 12px;font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-.03em}.hero p:last-child,.page-heading>p:not(.eyebrow),.detail-heading>p:not(.eyebrow){margin:0;color:var(--muted);max-width:660px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:0 0 18px}.section-heading h2,.panel h2{margin:0;font-size:21px;line-height:1.35}.count{display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:3px 11px;color:var(--muted);font-size:13px;white-space:nowrap;background:#fff}.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.project-card{display:flex;flex-direction:column;gap:10px;min-height:210px;padding:24px;border:1px solid var(--border);border-radius:14px;background:var(--card);text-decoration:none;transition:border-color .18s,transform .18s}.project-card:hover{border-color:var(--primary);transform:translateY(-2px)}.card-icon,.file-icon{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:9px;background:#e4f5f2;color:var(--primary);font-size:20px}.card-title{font-size:20px;line-height:1.3;font-weight:730;overflow-wrap:anywhere}.card-description{color:var(--muted);font-size:14px;line-height:1.5;overflow-wrap:anywhere}.card-footer{display:flex;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid #e7f0ee;color:var(--primary);font-size:13px;font-weight:700}.empty-state{padding:46px 24px;text-align:center;background:#fff;border:1px dashed var(--border);border-radius:14px}.empty-state h3{margin:0 0 4px;font-size:18px}.empty-state p,.muted{color:var(--muted)}.empty-state p{margin:0}.back-link,.text-link{display:inline-block;color:var(--primary);font-weight:650;text-decoration:none}.back-link{margin-bottom:34px}.back-link:hover,.text-link:hover{text-decoration:underline}.detail-heading,.page-heading{margin-bottom:36px}.detail-heading .count{margin-top:18px}.file-list{border:1px solid var(--border);border-radius:14px;overflow:hidden;background:#fff}.file-row{display:flex;align-items:center;gap:16px;min-width:0;padding:16px 20px}.file-row+.file-row{border-top:1px solid #e7f0ee}.file-info{display:flex;flex:1;min-width:0;flex-direction:column}.file-info strong{font-size:15px;font-weight:650;overflow-wrap:anywhere}.file-info small,.manage-item small{font-size:13px;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border:1px solid var(--primary);border-radius:8px;color:#fff;background:var(--primary);text-align:center;text-decoration:none;font-weight:700;cursor:pointer;transition:background .18s,border-color .18s}.button:hover{background:var(--primary-dark);border-color:var(--primary-dark)}.button-small{min-height:40px;padding:7px 14px;font-size:14px;white-space:nowrap}.button-secondary{color:var(--primary);background:#fff}.button-secondary:hover{color:#fff}.button-danger{color:var(--danger);background:#fff;border-color:#e8b8bf}.button-danger:hover{color:#fff;background:var(--danger);border-color:var(--danger)}.login-card{width:min(100%,440px);margin:40px auto;padding:32px;border:1px solid var(--border);border-radius:14px;background:#fff}.login-card h1{font-size:30px}.login-card .muted{margin:0 0 24px}.form-stack{display:flex;flex-direction:column;gap:18px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:14px;font-weight:700}.field input:not([type=checkbox]),.field textarea{width:100%;min-height:44px;padding:10px 12px;border:1px solid #a8bdb9;border-radius:8px;color:var(--ink);background:#fff}.field textarea{resize:vertical}.field input[type=checkbox]{width:20px;height:20px;accent-color:var(--primary)}.field:has(input[type=checkbox]){flex-direction:row;align-items:center}.field:has(input[type=checkbox]) label{order:1}.form-error{color:var(--danger);font-size:14px}.messages{margin-bottom:24px}.message{padding:11px 15px;border-radius:8px;border:1px solid var(--border);background:#fff}.message.success{color:#145b4c;background:#e9f8f2}.message.error{color:var(--danger);background:#fff2f3}.admin-layout{display:grid;grid-template-columns:minmax(270px,.85fr) minmax(0,1.15fr);align-items:start;gap:18px}.panel{padding:26px;border:1px solid var(--border);border-radius:14px;background:#fff}.panel h2{margin-bottom:20px}.panel .section-heading h2{margin-bottom:0}.manage-list{display:flex;flex-direction:column}.manage-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;text-decoration:none}.manage-item+.manage-item{border-top:1px solid #e7f0ee}.manage-item strong,.manage-item small{display:block;overflow-wrap:anywhere}.manage-item:hover strong{color:var(--primary)}.status-public{color:var(--primary);font-weight:700}.status-private{color:var(--danger);font-weight:700}.file-panel{margin-top:18px}.file-panel .file-list{border:0;border-radius:0}.file-panel .file-row{padding-inline:0}.file-actions{display:flex;align-items:center;gap:8px}.file-actions form{margin:0}.danger-zone{margin-top:24px}.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}
@media(max-width:720px){.container{width:min(100% - 28px,1080px)}.header-inner{align-items:flex-start;flex-direction:column;gap:4px;padding-block:14px}.nav{gap:8px 20px}.page{padding-block:32px 62px}.hero{padding:6px 0 36px}.admin-layout{grid-template-columns:1fr}.panel{padding:20px}.file-row{flex-wrap:wrap;gap:10px}.file-info{flex-basis:calc(100% - 52px)}.file-row>.button,.file-actions{margin-left:46px}.file-actions{width:calc(100% - 46px)}.login-card{margin:0 auto;padding:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.project-card{transition:none}}
.nav a,.nav-button{display:inline-flex;align-items:center;min-height:44px}.button-small{min-height:44px}.file-info strong{font-size:16px}.field input[type=file]{max-width:100%;min-width:0}.selection-status{margin:-8px 0 0;color:var(--muted);font-size:14px}.button:disabled{opacity:.65;cursor:wait}.form-actions{display:flex;flex-wrap:wrap;gap:10px}.rename-card{width:min(100%,520px);margin-top:0}.rename-card .muted strong{color:var(--ink);overflow-wrap:anywhere}.file-actions{flex-wrap:wrap}.file-actions .button{min-width:64px}
@media(max-width:720px){.nav{width:100%;gap:0 16px}.file-row>.button,.file-actions{margin-left:46px}.file-actions{justify-content:flex-start;gap:8px}.form-actions .button{flex:1}.rename-card{padding:22px}.file-panel .file-row{align-items:flex-start}.file-panel .file-info{padding-top:6px}}
.section-title{margin:0;font-size:clamp(22px,3vw,28px);line-height:1.3}.share-box{display:grid;gap:15px;margin:-12px 0 24px;padding:22px 24px;border:1px solid var(--border);border-radius:14px;background:#fff}.share-box h2{margin:0 0 4px;font-size:18px}.share-box p{margin:0;color:var(--muted);font-size:14px}.share-row{display:flex;gap:10px}.share-row input{flex:1;min-width:0;min-height:44px;padding:10px 12px;border:1px solid #a8bdb9;border-radius:8px;color:var(--ink);background:#f8fbfa;overflow:hidden;text-overflow:ellipsis}.share-row .button{flex:none}.share-box .share-status{min-height:20px;color:var(--primary);font-weight:650}.private-hint{margin:-12px 0 24px;padding:14px 16px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--muted)}
@media(max-width:520px){.share-box{padding:18px}.share-row{flex-direction:column}.share-row .button{width:100%}.section-heading{align-items:flex-start}.section-heading .count{margin-top:4px}}
.share-box{min-width:0;grid-template-columns:minmax(0,1fr)}.share-box>div,.share-row{min-width:0}.share-row input{width:100%}
@media(max-width:720px){.back-link{margin-bottom:20px}.page-heading{margin-bottom:22px}.detail-heading{margin-bottom:26px}.share-box{margin-top:0}}
.header-inner{min-height:64px;padding-block:10px}.header-title{flex:1;min-width:0;margin:0;font-size:clamp(20px,2.5vw,26px);font-weight:760;line-height:1.3;letter-spacing:-.02em;overflow-wrap:anywhere}.page{padding-block:28px 52px}.detail-heading{margin-bottom:20px}.detail-heading .count{margin-top:0}.detail-heading p+.count{margin-top:12px}.project-status,.section-intro{margin:0 0 18px;color:var(--muted)}.share-box{margin:0 0 20px}.private-hint{margin:0 0 20px}.login-card{margin:0 auto}
@media(max-width:720px){.header-inner{min-height:0;padding-block:10px}.header-title{width:100%;font-size:21px}.page{padding-block:20px 40px}.detail-heading{margin-bottom:18px}}
.upload-progress{display:grid;gap:10px;padding:14px;border:1px solid var(--border);border-radius:10px;background:#f4faf9}.upload-progress[hidden],.upload-progress [hidden]{display:none}.upload-progress label{font-size:14px;font-weight:650}.upload-progress progress{width:100%;height:14px;accent-color:var(--primary)}.upload-progress .button{justify-self:start}.upload-progress.is-error label{color:var(--danger)}
@media(max-width:520px){.upload-progress .button{width:100%}}