:root{--ink:#242b42;--muted:#8991a3;--blue:#5268e8;--line:#e9ecf3;--bg:#f6f8fc;--shadow:0 10px 35px #26336108}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.5}button,input,textarea{font:inherit}button,a,input,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}button{color:inherit}input,textarea{border:1px solid var(--line);outline:none;border-radius:10px;padding:13px 15px;background:white;color:var(--ink)}input:focus,textarea:focus{border-color:#8090ec;box-shadow:0 0 0 3px #5268e810}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid #aab7ff;outline-offset:4px}input::placeholder,textarea::placeholder{color:#a0a7b7}.topbar{height:96px;border-bottom:1px solid var(--line);background:#fff;display:flex;justify-content:space-between;align-items:center;padding:0 max(5%,calc((100vw - 1200px)/2))}.brand{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:750;letter-spacing:1px}.brand-icon{width:43px;height:43px;background:var(--blue);border-radius:13px;color:white;font-size:32px;display:grid;place-items:center;font-weight:500;line-height:1}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:400;letter-spacing:1px;margin-top:2px}.header-right{display:flex;gap:25px;align-items:center}.privacy{font-size:12px;color:#929aac}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:1px solid var(--line);border-radius:9px;background:#fff;padding:10px 17px;font-weight:550;white-space:nowrap;transition:transform .15s,box-shadow .15s}.button:hover{transform:translateY(-1px);box-shadow:0 5px 12px #27325b10}.primary{background:var(--blue);color:white;border-color:var(--blue);box-shadow:0 4px 10px #5268e81c}.dark{background:#29334d;color:#fff;border-color:#29334d}.large{padding:14px 22px;font-size:14px;gap:32px}.full{width:100%}.destructive{background:#dc535e;color:white;border:0}main{max-width:1200px;margin:auto;padding:0 32px;min-height:calc(100vh - 195px)}.hero{display:grid;grid-template-columns:1fr 1fr;padding:64px 26px 49px;gap:60px;align-items:center}.eyebrow{font-size:10px;letter-spacing:2.6px;font-weight:650;color:#929bb0;display:flex;align-items:center;gap:8px}.eyebrow i,.art-caption i{width:6px;height:6px;display:inline-block;background:#76b69c;border-radius:50%}.hero h1{font-size:46px;line-height:1.42;letter-spacing:-1px;margin:16px 0 16px;font-weight:760}.hero h1 span{color:var(--blue)}.hero p{font-size:14px;line-height:1.9;color:#8991a3;margin-bottom:24px}.hero-note{font-size:10px;letter-spacing:.8px;margin-top:16px;color:#9ba3b3}.transfer-art{position:relative;height:325px;min-width:0}.orbit{position:absolute;border:1px dashed #dfe4f2;border-radius:50%;width:310px;height:310px;top:0;left:calc(50% - 155px)}.orbit-two{width:230px;height:230px;top:40px;left:calc(50% - 115px);border-style:solid;background:radial-gradient(#e9edff88,transparent)}.transfer-center{position:absolute;top:115px;left:calc(50% - 40px);width:80px;height:80px;border:8px solid #fff;border-radius:24px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:48px;box-shadow:0 20px 30px #5268e829;transform:rotate(-7deg)}.floating{position:absolute;display:flex;gap:12px;align-items:center;background:white;padding:15px 17px;border-radius:14px;border:1px solid #eef0f8;box-shadow:0 15px 45px #2b366010;font-size:12px;z-index:1}.floating small{display:block;color:#a1a9b9;font-size:9px;margin-top:4px}.file-one{left:4%;top:18px;transform:rotate(-5deg)}.file-two{right:0;bottom:50px;transform:rotate(5deg)}.tile{width:40px;height:40px;display:grid;place-items:center;flex-shrink:0;border-radius:11px;font-size:20px;font-weight:600}.violet{background:#f0ebff;color:#9474d3}.blue{background:#edf0ff;color:#6578dc}.small-check{margin-left:15px;color:#7fae94;font-size:11px}.device{position:absolute;background:#fff;border:1px solid #dce2ef;box-shadow:0 12px 30px #2832570c;transform:rotate(8deg)}.desktop{width:105px;height:72px;left:24px;bottom:65px;border-radius:8px;padding:7px}.desktop div{background:linear-gradient(130deg,#e3e9ff,#f2f5ff);height:50px;border-radius:3px}.desktop span{position:absolute;bottom:-12px;left:-8px;right:-8px;height:6px;border-radius:2px 2px 8px 8px;background:#d9dfed}.phone{right:40px;top:30px;width:51px;height:88px;border-radius:12px;padding:5px;transform:rotate(13deg)}.phone div{height:100%;border-radius:8px;background:linear-gradient(130deg,#e9e6ff,#f2f5ff)}.phone span{position:absolute;top:8px;left:18px;width:16px;height:3px;background:#d4d5e8;border-radius:5px}.art-caption{position:absolute;bottom:0;left:0;right:0;text-align:center;font-size:10px;color:#9aa4b6;letter-spacing:1px}.art-caption i{margin-right:6px}.join-strip{border:1px solid var(--line);border-radius:14px;background:#fff;padding:23px;display:flex;justify-content:space-between;gap:30px;align-items:center;box-shadow:var(--shadow)}.join-label{display:flex;align-items:center;gap:14px;flex-shrink:0}.join-label strong{font-size:14px}.join-label small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.join-strip form{display:flex;gap:10px;flex:1;max-width:510px}.join-strip input{min-width:0;flex:1;background:#fafbfe;font-size:12px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:39px 0 21px}.section-head h2{font-size:19px;margin:0;font-weight:650}.section-head h2 span{font-size:12px;color:#7f8aa7;background:#e9edf7;padding:2px 7px;border-radius:6px;margin-left:7px}.section-head p{color:#9aa2b2;font-size:11px;margin:6px 0 0}.search{display:flex;align-items:center;position:relative}.search span{position:absolute;left:12px;font-size:24px;color:#939cad}.search input{background:transparent;padding:9px 12px 9px 35px;font-size:12px;width:210px}.room-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.room-card{display:block;text-align:left;background:#fff;padding:22px;border:1px solid var(--line);border-radius:13px;box-shadow:var(--shadow);transition:border .2s,transform .2s;min-width:0}.room-card:hover{border-color:#b8c1f5;transform:translateY(-3px)}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.badge{display:inline-flex;border-radius:6px;background:#f0f7f3;color:#6d9c81;font-size:10px;padding:4px 8px;font-weight:500}.room-card h3{font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:0 0 7px}.room-card p{color:#9aa2b2;font-size:11px;margin:0}.card-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f1f3f8;padding-top:15px;margin-top:20px;font-size:11px;color:#8e97ac}.card-bottom span:last-child{color:var(--blue)}.empty{padding:45px 20px;grid-column:1/-1;text-align:center;border:1px dashed #dfe4ef;border-radius:15px;background:#ffffff66;color:var(--muted)}.empty h2,.empty h3{color:#68738b;font-weight:550;font-size:16px}.empty p{font-size:12px;margin-bottom:20px}.empty-symbol{font-size:38px;color:#aebbe6}.principles{margin:45px 0 34px;display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.principles>div{position:relative;padding-left:43px}.principles span{position:absolute;left:0;top:0;font-size:20px;color:#c6cede;font-weight:600}.principles strong{font-size:12px;font-weight:550;color:#7a859d}.principles p{font-size:11px;color:#a1a8b8;margin:6px 0}.loading{grid-column:1/-1;text-align:center;color:var(--muted);padding:30px}footer{border-top:1px solid var(--line);max-width:1136px;margin:25px auto 0;padding:24px 0 28px;display:flex;justify-content:space-between;color:#a7aebd;font-size:10px}.footer-dot{margin:0 8px;color:#c7ccda}.back{margin-top:32px;border:0;background:none;color:#8490a6;padding:0;font-size:12px}.room-heading{margin:25px 0 16px;display:flex;justify-content:space-between;gap:20px;align-items:center}.room-heading h1{font-size:30px;margin:9px 0 12px;word-break:break-word}.room-meta{display:flex;gap:14px;align-items:center;font-size:12px;color:var(--muted)}.room-actions{display:flex;gap:12px}.icon-button{border:0;border-radius:8px;background:transparent;font-size:22px;padding:4px 10px;color:#8e97aa}.danger:hover{color:#d85b6c;background:#fff0f0}.room-code{padding:14px 0 22px;display:flex;align-items:center;gap:12px;font-size:11px;color:var(--muted);flex-wrap:wrap}.room-code button{color:#6776c4;font-family:monospace;letter-spacing:1px;background:#edf0ff;padding:6px 10px;border:0;border-radius:5px}.room-code>span{font-size:10px;color:#9fa8b9}.compose-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.upload-box{background:#f0f3ff80;border:1.5px dashed #c7cff0;border-radius:13px;padding:28px;text-align:center;cursor:pointer}.upload-box.drag{background:#e4eaff;border-color:var(--blue)}.upload-symbol{color:var(--blue);font-size:27px;margin:auto auto 10px;width:42px;height:42px;background:#e5eaff;border-radius:13px}.upload-box h3{font-size:15px;margin:10px 0 7px}.upload-box p{font-size:11px;color:var(--muted);margin:0 0 15px}.upload-box .button{font-size:12px;color:var(--blue);border-color:#d9dff7}.upload-box small{display:block;font-size:10px;color:#a2aac0;margin-top:12px}.text-box{display:flex;flex-direction:column;background:#fff;padding:23px;border:1px solid var(--line);border-radius:13px}.compose-label{display:flex;justify-content:space-between;align-items:center}.compose-label strong{font-size:13px;font-weight:550}.compose-label span{font-size:10px;color:#a0a7b7}.text-box textarea{resize:vertical;min-height:133px;flex:1;border:0;box-shadow:none;padding:17px 0;font-size:12px;line-height:1.8}.text-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #f1f3f8;padding-top:13px}.text-footer>span{font-size:10px;color:#a9b0c0}.text-footer button{font-size:12px}.filters{display:flex;gap:3px;padding:4px;background:#eaeef7;border-radius:8px}.filters button{border:0;background:transparent;color:#8a94a9;border-radius:5px;padding:6px 13px;font-size:11px}.filters .active{background:#fff;color:var(--blue);box-shadow:0 2px 5px #2b356708}.items-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:30px}.item-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-width:0}.item-preview{height:170px;display:flex;align-items:center;justify-content:center;background:#eef1f8;border:0;width:100%;padding:0;overflow:hidden}.item-preview img,.item-preview video{width:100%;height:100%;object-fit:contain}.file-symbol{font-size:48px;color:#a1aed3}.text-preview{padding:18px;background:#fcfcff;height:170px;overflow:auto;white-space:pre-wrap;word-break:break-word;font-size:12px;line-height:1.8;color:#66718a}.item-info{padding:14px 16px}.item-info strong{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:12px}.item-sub{font-size:10px;color:#a2aabd;margin-top:5px}.item-actions{display:flex;align-items:center;justify-content:space-between;margin-top:12px}.item-actions a,.item-actions button{border:0;background:transparent;color:var(--blue);font-size:11px;padding:4px 0}.item-actions .delete{color:#b1b8c7}dialog{border:1px solid #e9ecf5;border-radius:18px;padding:30px;max-width:430px;width:calc(100% - 32px);box-shadow:0 30px 100px #1c25473a;color:var(--ink)}dialog::backdrop{background:#27304c55;backdrop-filter:blur(4px)}dialog h2{font-size:22px;margin:17px 0 8px}dialog p{font-size:12px;color:var(--muted);line-height:1.8}dialog label{display:block;font-size:12px;margin:22px 0 8px}dialog input{width:100%}.dialog-top{display:flex;align-items:center;justify-content:space-between}.notice{padding:12px;background:#f8f8fc;border-radius:8px;color:#969eb1;font-size:11px;margin:17px 0 22px;line-height:1.8}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}#preview-dialog{max-width:950px}.preview-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.preview-head strong{overflow-wrap:anywhere}#preview-content img,#preview-content video{max-width:100%;max-height:70vh;display:block;margin:auto}#preview-content pre{white-space:pre-wrap;word-break:break-word;max-height:65vh;overflow:auto}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(20px);background:#29344e;color:#fff;border-radius:10px;padding:12px 22px;font-size:12px;box-shadow:0 10px 30px #27325230;opacity:0;pointer-events:none;transition:.2s;z-index:100;max-width:90vw}#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}#upload-queue{margin-top:18px;padding:16px 20px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:12px}.upload-row{display:flex;gap:15px;justify-content:space-between;padding:5px 0}.upload-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-row small{color:var(--muted);white-space:nowrap}.upload-progress{width:100%;height:4px;accent-color:var(--blue)}[hidden]{display:none!important}
@media(min-width:1500px){.hero{padding-top:75px;padding-bottom:65px}.hero h1{font-size:52px}}@media(max-width:900px){.hero{gap:15px;padding-left:0;padding-right:0}.hero h1{font-size:39px}.join-strip{gap:18px;flex-wrap:wrap}.join-strip form{max-width:none}.room-grid,.items-grid{grid-template-columns:repeat(2,1fr)}.privacy{display:none}.transfer-art{transform:scale(.9)}footer{margin-left:32px;margin-right:32px}.room-code>span{width:100%}}@media(max-width:600px){.topbar{height:77px;padding:0 20px}.brand{font-size:19px;gap:9px}.brand-icon{width:36px;height:36px;font-size:27px}.brand small{font-size:8px;letter-spacing:0}.header-right .button{font-size:11px;padding:8px 12px}main{padding:0 20px}.hero{display:block;padding:36px 0 30px}.hero h1{font-size:37px;line-height:1.42}.hero p{font-size:12px}.eyebrow{font-size:9px}.transfer-art{display:none}.hero h1 br{display:none}.hero h1 span{display:block}.hero-note{font-size:9px}.hero .large{padding:12px 20px}.join-strip{padding:18px;display:block}.join-strip form{margin-top:16px;gap:8px}.join-strip input{width:0;font-size:11px;padding:11px}.join-strip button{font-size:11px;padding:10px}.join-label small{font-size:10px}.section-head{flex-wrap:wrap;margin-top:28px;gap:15px}.section-head h2{font-size:17px}.search{width:100%}.search input{width:100%}.room-grid{grid-template-columns:1fr}.room-card{padding:20px}.card-top{margin-bottom:14px}.card-bottom{margin-top:15px}.principles{gap:9px;margin:32px 0}.principles>div{padding:0}.principles span{position:static;display:block;font-size:17px;margin-bottom:6px}.principles strong{font-size:10px}.principles p{font-size:9px}footer{margin:20px;display:block;line-height:2;font-size:9px}footer>span{display:block}.room-heading{display:block;margin-top:20px}.room-heading h1{font-size:25px}.room-actions{margin-top:18px}.room-actions .button{font-size:12px}.compose-grid{grid-template-columns:1fr}.upload-box{padding:24px}.text-box{padding:18px}.room-code{gap:7px;padding-top:16px}.filters{width:100%;justify-content:space-between}.filters button{flex:1;padding:7px}.items-grid{grid-template-columns:1fr}.item-preview,.text-preview{height:210px}.text-footer>span{font-size:9px}dialog{padding:24px}.empty{padding:35px 15px}.section-head p{font-size:10px}.room-heading .eyebrow{font-size:9px}}