:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#272c40;background:#f7f8fa;font-synthesis:none;--purple:#5756d6;--muted:#858a9c;--border:#e8eaf0}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid #c0bcff;outline-offset:4px}[hidden]{display:none!important}.site-header{background:#fff;border-bottom:1px solid var(--border)}.header-inner{max-width:1192px;margin:auto;padding:22px 36px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px}.brand-icon{display:grid;place-items:center;width:36px;height:36px;background:var(--purple);color:white;border-radius:12px;font-size:20px;font-weight:750}.brand strong{font-size:22px;letter-spacing:1px}.brand-caption{font-size:12px;color:var(--muted);border-left:1px solid var(--border);padding-left:16px;margin-left:5px}.header-actions{display:flex;align-items:center;gap:24px}.public-label{font-size:12px;color:#7e8394;display:flex;align-items:center;gap:7px}.public-label i{width:6px;height:6px;border-radius:100%;background:#7bb79b}.button{border-radius:9px;padding:11px 18px;font-size:13px;font-weight:600;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:12px;white-space:nowrap;transition:background .2s,transform .2s}.button:hover{transform:translateY(-1px)}.primary{background:var(--purple);color:white;box-shadow:0 3px 8px #5756d612}.primary:hover{background:#4949c4}.secondary{background:#fff;border-color:var(--border);color:#5b6075}.secondary:hover{background:#f4f3ff}.text-button{padding:5px 0;border:0;background:none;color:#858a9c;font-size:12px}.text-button:hover{color:var(--purple)}.container{max-width:1192px;padding:0 36px;margin:auto}.hero{display:flex;align-items:center;justify-content:space-between;padding:62px 50px 48px 26px;min-height:405px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:650;color:var(--purple)}h1{font-size:44px;letter-spacing:-1px;line-height:1.35;margin:16px 0 16px;font-weight:750}h1 span{color:var(--purple)}.hero-copy>p{font-size:13px;line-height:1.9;color:#858a9c;margin:0 0 24px}.hero-button{padding:12px 20px}.format-note{font-size:10px;color:#9b9faf;margin-top:15px;letter-spacing:.4px}.hero-art{width:385px;height:290px;position:relative}.art-orbit{position:absolute;width:280px;height:280px;left:40px;top:12px;border:1px dashed #d7d8ed;border-radius:50%;background:radial-gradient(ellipse,#e8e8ff77,transparent 70%)}.art-sheet{position:absolute;border-radius:14px;border:1px solid #e5e4f4;box-shadow:0 16px 35px #4b498912;background:white;width:190px;height:220px}.sheet-back{left:44px;top:24px;transform:rotate(-13deg);background:#f1f0ff}.mini-lines{padding:25px 20px}.mini-lines i{display:block;width:95px;height:6px;margin:12px 0;background:#d9d6fb;border-radius:3px}.mini-lines i:nth-child(2){width:60px}.sheet-front{left:143px;top:41px;transform:rotate(9deg);padding:16px 20px}.sheet-top{display:flex;gap:4px;padding-bottom:12px;border-bottom:1px solid #efeff6}.sheet-top span{height:4px;width:4px;background:#cdd0e0;border-radius:50%}.code-symbol{text-align:center;font-size:43px;color:#7671e3;letter-spacing:4px;font-weight:600;margin:17px 0}.sheet-line{height:5px;width:105px;background:#e9e9f3;margin:8px auto;border-radius:3px}.sheet-line.short{width:72px}.sheet-chips{display:flex;gap:6px;margin-top:16px;justify-content:center;font-size:9px;color:#928ccf}.sheet-chips span{background:#f3f1ff;padding:4px 12px;border-radius:4px}.art-tag{position:absolute;left:-16px;bottom:33px;background:#ffe7db;color:#be7e60;padding:8px 14px;font-size:11px;border-radius:8px;transform:rotate(5deg);box-shadow:0 5px 15px #c7a29615}.floating-tag{position:absolute;bottom:2px;left:82px;background:white;padding:12px 17px;border-radius:10px;box-shadow:0 5px 20px #4b49890c;border:1px solid #eeeef5;font-size:11px;color:#8b8b9e;transform:rotate(-4deg)}.floating-tag span{color:#e8b55b;margin-right:7px}.art-spark{position:absolute;color:#bbb6eb;z-index:1}.spark-one{font-size:35px;right:10px;top:0;transform:rotate(15deg)}.spark-two{font-size:27px;left:8px;bottom:16px;color:#dbbb92}.gallery{margin:15px 0 55px}.gallery-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}h2{font-size:21px;margin:0;font-weight:650}.gallery-heading h2 span{font-size:12px;color:#8079ca;padding:3px 8px;background:#ecebf9;border-radius:6px;vertical-align:middle;margin-left:8px}.gallery-heading p{color:var(--muted);font-size:12px;margin:9px 0 0}.gallery-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:25px}.filters{display:flex;gap:4px;background:#eeeff3;border-radius:9px;padding:4px}.filter{font-size:12px;padding:8px 14px;background:transparent;border:0;color:#85899b;border-radius:6px;white-space:nowrap}.filter.active{background:#fff;color:#5756c7;box-shadow:0 2px 4px #272c4008;font-weight:600}.search-sort{display:flex;align-items:center;gap:12px}.search{display:flex;align-items:center;gap:8px;background:white;border:1px solid var(--border);padding:8px 12px;border-radius:8px}.search span{font-size:20px;color:#9298ac;line-height:1}.search input{width:160px;border:0;outline:none;background:none;font-size:11px;color:#555b70}.search:focus-within{border-color:#9f99ef}.search input::placeholder{color:#a2a6b5}#sort{background:transparent;border:0;color:#808596;font-size:12px;max-width:105px}.work-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.work-card{background:#fff;border:1px solid var(--border);border-radius:13px;overflow:hidden;transition:transform .2s,box-shadow .2s}.work-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px #2f34500a}.card-preview{width:100%;height:160px;border:0;position:relative;display:flex;align-items:center;justify-content:center;color:#7770c5;background:#eeedf9;overflow:hidden}.card-preview:after{content:"";position:absolute;height:190px;width:190px;border:1px solid currentColor;opacity:.09;border-radius:50%;right:-45px;top:-55px}.card-preview.folder{background:#edf4f0;color:#739a88}.card-preview.link{background:#faf0e6;color:#c39569}.card-symbol{font-size:35px;font-weight:600;letter-spacing:5px;opacity:.7}.card-type{position:absolute;left:15px;top:14px;font-size:9px;letter-spacing:.7px;border:1px solid #ffffffa0;border-radius:5px;padding:4px 7px;background:#ffffff70}.preview-hint{position:absolute;bottom:12px;right:14px;letter-spacing:0;font-size:10px;opacity:.7}.card-body{padding:19px}.card-body h3{font-size:15px;font-weight:650;line-height:1.5;margin:0 0 8px;overflow-wrap:anywhere}.card-description{height:36px;font-size:11px;line-height:1.7;color:#9397a5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0 0 18px;overflow-wrap:anywhere}.card-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid #f0f1f5;padding-top:14px;font-size:10px;color:#989dad}.card-author{display:flex;align-items:center;gap:7px;min-width:0}.avatar{width:24px;height:24px;background:#f0eff9;color:#8d85bd;display:grid;place-items:center;border-radius:50%;font-size:10px;flex-shrink:0}.author-name{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#7e8395}.delete-work{font-size:11px;background:#fff3f1;color:#bd6761;border:0;border-radius:5px;padding:5px 8px;margin-top:12px}.empty-state{text-align:center;border:1px dashed #dfe1ec;border-radius:14px;padding:38px 20px;background:#fff8;min-height:245px}.empty-icon{font-size:36px;color:#b7b2e5}.empty-state h3{font-size:16px;font-weight:500;margin:10px 0}.empty-state p{font-size:12px;color:var(--muted);margin:10px 0 20px}.loading-state{padding:60px;text-align:center;font-size:13px;color:var(--muted)}.site-footer{max-width:1120px;margin:0 auto;padding:24px 0 30px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:16px;font-size:10px;color:#a0a4b3}.site-footer .text-button{margin-left:14px;font-size:10px}dialog{border:1px solid var(--border);border-radius:18px;background:#fff;color:#272c40;box-shadow:0 30px 90px #20244230;padding:28px;max-height:90dvh;max-width:calc(100vw - 28px)}dialog::backdrop{background:#20244265;backdrop-filter:blur(5px)}.upload-dialog{width:630px}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:24px}.dialog-heading .eyebrow{font-size:9px;margin-bottom:10px}.dialog-heading h2{font-size:23px}.dialog-heading p{color:var(--muted);font-size:12px;margin:10px 0 0;line-height:1.7}.icon-button{border:0;border-radius:8px;background:#f3f4f7;color:#8c90a0;font-size:23px;width:32px;height:32px;line-height:1;flex-shrink:0}.icon-button:hover{background:#e9e9f5}.upload-tabs{display:flex;background:#f2f3f7;padding:4px;border-radius:9px;gap:4px;margin-bottom:20px}.upload-tab{flex:1;padding:10px 4px;font-size:12px;color:#858a9c;border:0;background:transparent;border-radius:6px}.upload-tab span{margin-right:4px}.upload-tab.active{background:white;color:var(--purple);box-shadow:0 1px 4px #272c400a}.drop-zone{display:flex;flex-direction:column;align-items:center;gap:9px;border:1.5px dashed #d5d2ec;background:#faf9ff;border-radius:10px;padding:23px 12px;cursor:pointer;text-align:center}.drop-zone.dragover{border-color:var(--purple);background:#efedff}.upload-icon{width:32px;height:32px;font-size:23px;background:#eeebff;color:#8c83d5;border-radius:9px}.drop-zone strong{font-size:12px;font-weight:500;color:#706a9e}.drop-zone>span:last-child{font-size:10px;color:#9a97ae}.file-selection{font-size:11px;color:#6b669d;background:#f5f3ff;border-radius:6px;padding:10px;margin-top:10px;overflow-wrap:anywhere}.field{display:block;font-size:12px;font-weight:550;margin:18px 0;color:#666c80}.required{color:#a69bd8}.optional{font-size:10px;font-weight:400;color:#a2a6b4;margin-left:5px}.field input,.field textarea,.field select{display:block;width:100%;margin-top:8px;border:1px solid #e3e5ec;background:#fff;border-radius:7px;padding:11px 12px;font-size:12px;color:#474d65;outline:none;font-weight:400;min-width:0}.field input:focus,.field textarea:focus,.field select:focus{border-color:#aaa3ec;box-shadow:0 0 0 3px #5756d609}.field input::placeholder,.field textarea::placeholder{color:#aeb2c0}.field textarea{resize:vertical}.field small{display:block;font-weight:400;font-size:10px;line-height:1.6;color:#9b9faf;margin-top:7px}.form-row{display:grid;grid-template-columns:1.4fr 1fr;gap:15px}.form-row .field{margin-bottom:0}.dialog-footer{border-top:1px solid #eeeff4;padding-top:18px;margin-top:22px;display:flex;align-items:center;justify-content:space-between;gap:10px}.dialog-footer>span{font-size:10px;color:#a0a5b5}.message{padding:12px;border-radius:8px;font-size:12px;line-height:1.6;margin:12px 0}.error{background:#fff2ef;color:#bd6a5b}progress{width:100%;height:5px;accent-color:var(--purple)}#progress-label{font-size:10px;color:var(--muted)}.preview-dialog{width:1200px;height:90dvh;padding:0;overflow:hidden}.preview-header{padding:16px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--border)}.preview-header h2{font-size:16px;overflow-wrap:anywhere}.preview-header p{font-size:11px;color:var(--muted);margin:6px 0 0}.preview-actions{display:flex;align-items:center;gap:14px}.preview-actions .button{font-size:11px;padding:8px 12px}.preview-note{font-size:11px;color:#8a829e;background:#f8f6fc;padding:10px 22px;line-height:1.6}.preview-dialog[open]{display:flex;flex-direction:column}#preview-frame{width:100%;border:0;background:white;flex:1;min-height:0}.admin-dialog{width:430px}.small-note{font-size:11px;color:var(--muted);line-height:1.7}.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);padding:13px 24px;border-radius:10px;background:#30334b;color:#fff;box-shadow:0 6px 20px #0002;font-size:12px;z-index:100;max-width:90vw;text-align:center}
@media(min-width:1500px){.hero{padding-top:80px;padding-bottom:65px}.hero-art{margin-right:60px}}
@media(max-width:900px){.hero{padding:40px 10px}.hero-art{transform:scale(.85);transform-origin:right center;width:320px}.gallery-toolbar{align-items:flex-start;flex-direction:column}.search-sort{width:100%}.search{flex:1}.search input{width:100%}.work-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer{margin:0 36px}.brand-caption{display:none}}
@media(max-width:600px){.header-inner{padding:17px 20px}.brand strong{font-size:20px}.brand-icon{width:32px;height:32px;font-size:18px}.header-actions{gap:0}.public-label{display:none}.button{padding:10px 14px;font-size:12px}.container{padding:0 20px}.hero{padding:34px 2px 28px;min-height:0}.hero-art{display:none}h1{font-size:37px;margin:14px 0}.hero-copy>p{font-size:12px}.hero-button{margin-top:2px}.format-note{font-size:9px}.gallery{margin-top:16px}.gallery-heading{margin-bottom:20px}.gallery-heading h2{font-size:18px}.gallery-heading p{font-size:11px}.filters{width:100%;justify-content:space-between}.filter{padding:8px 12px;font-size:11px}.work-grid{grid-template-columns:1fr;gap:16px}.card-preview{height:160px}.site-footer{margin:0 20px;flex-direction:column;line-height:1.6;padding:20px 0}.site-footer>span:last-child{font-size:9px}.upload-dialog{padding:22px 18px}.dialog-heading h2{font-size:20px}.upload-tab{font-size:11px}.upload-tab span{display:none}.form-row{grid-template-columns:1fr;gap:0}.form-row .field{margin-top:16px}.dialog-footer{align-items:flex-start;flex-direction:column;gap:14px}.dialog-footer .button{width:100%}.preview-header{padding:14px;align-items:flex-start}.preview-header h2{font-size:14px}.preview-actions{gap:7px}.preview-actions .button{padding:8px;font-size:9px}.preview-note{padding:10px 14px;font-size:10px}.preview-dialog{max-width:calc(100vw - 16px);height:94dvh;max-height:94dvh}.empty-state{padding:28px 14px}.search input{font-size:12px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* 顶部导航只在题图离开视口后出现，不占据首屏空间。 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:20;transform:translateY(-105%);visibility:hidden;transition:transform .22s,visibility .22s;box-shadow:0 4px 18px #272c4006}.site-header.visible{transform:translateY(0);visibility:visible}.hero{padding-top:64px}.public-choice{display:flex;align-items:center;gap:9px;font-size:12px;color:#666c80;line-height:1.7}.public-choice input{accent-color:var(--purple);width:16px;height:16px;flex-shrink:0}.activities-section{margin:12px 0 35px}.activity-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.activity-card{display:block;padding:20px;border:1px solid var(--border);border-radius:12px;background:#fff;transition:border-color .2s}.activity-card:hover{border-color:#b5afe8}.activity-card h3{font-size:15px;line-height:1.6;margin:10px 0;overflow-wrap:anywhere}.activity-card p{font-size:11px;color:var(--muted);line-height:1.8;margin:4px 0}.activity-badge{font-size:10px;padding:4px 8px;border-radius:6px;background:#eeecfb;color:#8278b5}.activity-banner{margin:10px 0 35px;background:#eeecfa;border-radius:14px;padding:25px 28px}.activity-banner .eyebrow{margin:20px 0 10px}.activity-banner h2{font-size:26px;overflow-wrap:anywhere}.activity-banner>p{font-size:12px;color:#817a9a;line-height:1.8}.activity-admin-dialog{width:760px}.admin-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;border-bottom:1px solid var(--border);padding-bottom:18px}.admin-form-actions{display:flex;gap:12px}.admin-list-heading{font-size:15px;margin-top:30px;border-top:1px solid var(--border);padding-top:22px}.admin-activity{border:1px solid var(--border);border-radius:9px;padding:16px;margin:12px 0}.admin-activity h4{font-size:14px;margin:0 0 9px;overflow-wrap:anywhere}.admin-activity p{font-size:11px;color:var(--muted);line-height:1.8;margin:4px 0}.admin-activity-actions{display:flex;gap:15px;align-items:center;margin-top:10px}.admin-activity a{font-size:12px;color:var(--purple)}.work-meta{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}.work-meta span{font-size:9px;color:#8e87b0;background:#f4f2fa;border-radius:4px;padding:3px 6px}.work-meta .private-badge{background:#fff1e7;color:#b48760}.field input:read-only{background:#f5f5fa;color:#9394a9}.site-footer{padding-left:20px;padding-right:20px}.activity-admin-dialog .field{margin-top:14px}#activity-form .form-row{grid-template-columns:1fr 1fr}.gallery{scroll-margin-top:100px}
@media(max-width:900px){.activity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.hero{padding-top:40px}.activity-grid{grid-template-columns:1fr}.activity-banner{padding:20px}.activity-banner h2{font-size:22px}.activity-admin-dialog{padding:22px 18px}#activity-form .form-row{grid-template-columns:1fr}.site-footer{padding-left:0;padding-right:0}}