:root{--bg:#f6f7f9;--surface:#fff;--ink:#202827;--muted:#737b7c;--subtle:#92999a;--border:#e6e9eb;--accent:#c7ef73;--accent-hover:#b7e45f;--green:#3e7455;--danger:#b53737;--radius:16px;--motion:180ms;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit;text-decoration:none}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}svg use{pointer-events:none}.svg-defs{position:absolute;width:0;height:0;overflow:hidden}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #5d8b38;outline-offset:4px}[hidden]{display:none!important}.skip-link{position:fixed;left:20px;top:-80px;z-index:20;padding:12px 18px;background:var(--ink);color:#fff;border-radius:8px}.skip-link:focus{top:12px}
.header{height:86px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 max(5%,calc((100vw - 1272px)/2));gap:20px}.brand{display:inline-flex;gap:12px;align-items:center;font-size:22px;font-weight:750;letter-spacing:-.7px}.brand>span:last-child{display:flex;align-items:center;gap:15px}.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--accent);display:grid;place-items:center}.brand-mark svg{width:27px;height:27px;stroke-width:1.9}.brand-en{font-size:10px;font-weight:650;letter-spacing:2.1px;color:var(--muted);padding-left:15px;border-left:1px solid #dce0df}.header-actions{display:flex;gap:22px;align-items:center}.no-login{font-size:13px;color:var(--muted)}.icon-button{display:grid;place-items:center;width:44px;height:44px;border:0;background:transparent;border-radius:10px;color:#66706f;transition:background var(--motion)}.icon-button:hover{background:var(--bg)}.button{min-height:44px;padding:10px 16px;border:1px solid var(--border);border-radius:9px;background:var(--surface);display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:13px;font-weight:550;line-height:1.4;transition:background var(--motion),border-color var(--motion),color var(--motion),box-shadow var(--motion);white-space:nowrap}.button:hover{background:#f2f4f1;border-color:#cfd6cc}.button:active{background:#e9efdf}.button:disabled{opacity:.45}.button.ghost{border-color:transparent;background:transparent;color:#64706d}.button.ghost:hover:enabled{background:#eef1ef}.button.primary{background:var(--accent);border-color:var(--accent);color:#263719}.button.primary:hover:enabled{background:var(--accent-hover);border-color:var(--accent-hover)}.button.primary:disabled{opacity:1;background:#e8eddf;border-color:#e8eddf;color:#849079}.button.danger{background:#b53737;border-color:#b53737;color:white}.button.danger:hover{background:#9b2a2a}.button.secondary{background:#f5f6f6}.connect-button{display:none!important}
.page{max-width:1240px;margin:0 auto;padding:49px 24px 0}.intro{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}.eyebrow{font-size:11px;color:#69756d;letter-spacing:2px;display:flex;align-items:center;gap:9px}.tiny-line{width:18px;height:2px;background:#8eaf5f}h1,h2,h3,p{margin:0}h1{font-size:35px;font-weight:680;letter-spacing:-1.6px;line-height:1.5;margin-top:12px}h1 span{color:#738960}.intro-description{font-size:13px;color:var(--muted);margin-top:9px;letter-spacing:.1px;line-height:1.7}.connection{display:flex;align-items:center;gap:7px;padding:9px 0;font-size:11px;color:#66726c;white-space:nowrap;margin-bottom:1px}.status-dot,.small-dot,.footer-dot{width:6px;height:6px;display:inline-block;border-radius:50%;background:#78a674;flex-shrink:0}.status-dot{box-shadow:0 0 0 4px #e9f0e7;margin-right:5px}.status-dot.connecting{background:#c89c45;box-shadow:0 0 0 4px #f3eee1}.status-dot.offline{background:#a37d74;box-shadow:0 0 0 4px #f3e8e5}.connection-divider{height:11px;width:1px;background:#d7dcda;margin:0 5px}.workspace{display:grid;grid-template-columns:296px minmax(0,1fr);gap:24px;align-items:start}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:0 3px 9px #26353002}.connect-card{padding:25px 23px 0}.section-eyebrow{color:#859078;font-size:10px;letter-spacing:1.3px;margin-bottom:13px}.connect-card h2{font-size:17px;font-weight:630;letter-spacing:-.3px}.card-description{font-size:12px;color:var(--muted);line-height:1.9;margin-top:8px;max-width:220px}.qr-frame{display:flex;flex-direction:column;align-items:center;justify-content:center;width:206px;min-height:223px;margin:25px auto 21px;padding:15px;background:#fff;border:1px solid var(--border);border-radius:12px;position:relative}.qr-frame:before,.qr-frame:after{content:"";position:absolute;width:15px;height:15px;z-index:1;pointer-events:none}.qr-frame:before{left:-1px;top:-1px;border-left:2px solid #a7c780;border-top:2px solid #a7c780;border-radius:12px 0 0 0}.qr-frame:after{right:-1px;bottom:-1px;border-right:2px solid #a7c780;border-bottom:2px solid #a7c780;border-radius:0 0 12px 0}.share-qr{display:block;object-fit:contain;color:var(--muted);font-size:11px}.qr-caption{font-size:10px;letter-spacing:1.5px;color:#879083;margin-top:13px}.share-link-button{width:100%;background:#f8faf7;border-color:#e2e9dc;font-size:12px;justify-content:flex-start;padding-left:13px}.share-link-button svg{width:16px;height:16px;color:#62735b}.trailing-icon{margin-left:auto;width:14px!important;height:14px!important}.local-preview-note{font-size:10px;color:#7c8676;line-height:1.8;margin-top:10px}.devices-section{border-top:1px solid #edf0ed;margin:24px -23px 0;padding:20px 23px 22px}.small-section-title{font-size:11px;font-weight:550;color:#6a756e;display:flex;align-items:center;justify-content:space-between}.live-indicator{font-size:8px;letter-spacing:1px;color:#65884e;padding:3px 5px;background:#f0f6e9;border-radius:3px}.device-list{padding:0;margin:13px 0 0;list-style:none;display:flex;flex-direction:column;gap:13px}.device-list li{font-size:12px;display:flex;gap:11px;align-items:center;color:#59635f}.device-icon{background:#f3f5f3;width:32px;height:32px;border-radius:8px;display:grid;place-items:center;flex-shrink:0}.device-icon svg{width:16px;height:16px;color:#727e72}.device-name{min-width:0;overflow-wrap:anywhere;flex:1;font-size:11px}.device-self{font-size:9px;color:#748069;padding:3px 5px;background:#f0f4eb;border-radius:4px;white-space:nowrap}.device-online-dot{width:5px;height:5px;background:#91b575;border-radius:50%;margin:0 7px}.device-list .waiting-device{font-size:11px;color:#8c9390;padding:6px 0}.waiting-device svg{width:16px;height:16px;color:#a6ada5}.space-card{display:flex;align-items:center;gap:11px;border:1px solid var(--border);border-radius:12px;background:#f0f2f4;margin-top:15px;padding:17px 17px}.space-icon{width:34px;height:34px;display:grid;place-items:center;border:1px solid #dde2e0;border-radius:10px;color:#718070;background:#f8f9f8}.space-icon svg{width:17px;height:17px}.space-info{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}.space-info strong{font-size:12px;font-weight:550;overflow-wrap:anywhere}.space-info>span{font-size:9px;color:#7d8781;overflow-wrap:anywhere}.text-button{border:0;background:transparent;color:#687b5d;padding:8px;min-height:44px;font-size:11px;flex-shrink:0}.text-button:hover{color:#334d23}.public-note{font-size:10px;color:#7c8683;line-height:1.9;display:flex;gap:7px;padding:16px 5px}.public-note svg{width:12px;height:12px;margin-top:4px}.transfer-column{min-width:0}.composer{overflow:hidden}.composer-heading{display:flex;justify-content:space-between;align-items:center;padding:17px 23px 9px}.composer h2{font-size:15px;font-weight:600;display:flex;align-items:center;gap:10px}.heading-icon{width:28px;height:28px;background:#f2f5ee;color:#6e8658;display:grid;place-items:center;border-radius:7px}.heading-icon svg{width:16px;height:16px}.paste-button{font-size:11px!important;gap:6px;padding:8px 10px}.paste-button svg{width:15px;height:15px}#text-input{display:block;resize:vertical;width:calc(100% - 48px);height:208px;min-height:150px;max-height:65vh;border:0;margin:5px 24px 0;padding:13px 1px 10px;outline-offset:3px;font-size:15px;line-height:1.9;letter-spacing:.1px;color:#37423b;background:#fff;border-radius:3px}#text-input::placeholder{color:#a0a6a2;font-size:13px;line-height:2}#text-input:focus-visible{outline:2px solid #d1e3bc;outline-offset:6px}.composer-footer{padding:17px 24px 23px;display:flex;align-items:center;justify-content:space-between;gap:20px}.input-meta{font-size:10px;color:#929b93;display:flex;gap:10px;align-items:center;font-variant-numeric:tabular-nums}.input-meta>span:first-child{color:#788576}.draft-state{border-left:1px solid #e3e7e2;padding-left:10px}.composer-footer .primary{min-width:128px;min-height:44px;font-size:12px;gap:15px}.composer-footer .primary svg{width:16px;height:16px}.composer-note{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:13px 24px;background:#fafbf9;border-top:1px solid #edf0ea;font-size:10px;color:#7f8b78}.composer-note>span{display:flex;align-items:center;gap:7px}.small-dot{width:4px;height:4px;background:#92ad79}.keyboard-hint{color:#98a18f!important;font-size:9px}kbd{font-family:inherit;border:1px solid #dfe5d9;border-radius:4px;min-width:23px;padding:2px 4px;font-size:9px;text-align:center;background:white}.history{margin-top:27px}.history-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 13px}.history-title-group{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.history-heading h2{font-size:14px;font-weight:600}.count-badge{font-size:10px;border:1px solid #e2e6df;border-radius:5px;background:#eef2e9;color:#6c7e5e;min-width:21px;height:19px;display:grid;place-items:center;padding:0 5px;font-variant-numeric:tabular-nums}.retention-label{font-size:10px;color:#969d96;padding-left:3px}.clear-button{font-size:10px!important;padding:8px 1px 8px 10px;gap:5px;min-height:36px}.clear-button svg{width:13px;height:13px}.clear-button:hover:enabled{color:var(--danger)!important;background:transparent!important}.message-list{display:flex;flex-direction:column;gap:12px}.empty-state{min-height:224px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px dashed #dfe4dc;border-radius:var(--radius);background:#f8faf7;padding:25px;text-align:center}.empty-art{position:relative;height:56px;width:66px;margin:0 0 15px}.empty-page{position:absolute;width:32px;height:41px;border:1.5px solid #c7d5bf;border-radius:5px;background:#f9fcf7}.empty-page.back{left:8px;top:3px;transform:rotate(-13deg);background:#edf3e7}.empty-page.front{left:25px;top:13px;transform:rotate(9deg);padding:11px 7px}.empty-page i{display:block;height:1.5px;width:16px;background:#b6c8a8;margin-bottom:5px}.empty-page i:last-child{width:10px}.empty-spark{position:absolute;top:0;right:1px;font-size:17px;color:#a9bf98}.empty-state h3{font-size:12px;color:#718067;font-weight:500}.empty-state p{font-size:10px;color:#8f9b87;margin-top:9px;line-height:1.8}.message-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:17px 20px;animation:arrive 220ms ease-out}.message-card.newest{border-color:#dce6d2}.message-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.message-source{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-width:0;font-size:10px;color:#8b958c}.message-source svg{width:13px;height:13px;color:#75846b}.message-source .source-name{color:#69755f;overflow-wrap:anywhere}.message-source .message-tag{font-size:9px;background:#eef5e7;color:#71845f;padding:3px 6px;border-radius:4px}.message-time{color:#929a91;font-size:9px}.copy-message{min-height:36px;font-size:10px;padding:7px 10px;gap:5px}.copy-message svg{width:13px;height:13px}.message-body{font-family:inherit;font-size:13px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0 4px;color:#495349;max-height:270px;overflow:hidden}.message-body.expanded{max-height:none}.message-actions{display:flex;align-items:center;justify-content:space-between;margin-top:10px}.message-char-count{font-size:9px;color:#99a091}.expand-button{font-size:10px;padding:5px 0;min-height:36px}.footer{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--border);margin-top:43px;padding:24px 0 27px;font-size:10px;color:#8b958d;letter-spacing:.2px}.footer>span:first-child{display:flex;align-items:center;gap:8px}.footer>span:last-child{font-size:8px;letter-spacing:1.2px}.footer-dot{background:#a5b39a;width:4px;height:4px}.footer-slash{margin:0 10px;color:#b6beb1}.toast{position:fixed;bottom:34px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:9px;background:#28392b;color:#fff;padding:13px 20px;max-width:calc(100vw - 32px);width:max-content;border-radius:12px;font-size:12px;box-shadow:0 8px 24px #1c2c2425;z-index:20}.toast svg{color:var(--accent);width:17px;height:17px}.inline-error{color:var(--danger);font-size:12px;line-height:1.7;margin:5px 24px}.modal{border:1px solid var(--border);border-radius:20px;padding:25px 28px 28px;width:min(440px,calc(100% - 32px));max-height:calc(100dvh - 48px);color:var(--ink);background:#fff;box-shadow:0 20px 100px #1c282a25;overflow-y:auto}.modal::backdrop{background:#202b2965;backdrop-filter:blur(3px)}.modal-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:8px}.modal h2{font-size:19px;letter-spacing:-.5px;font-weight:650}.modal-header .icon-button{margin-right:-10px;flex-shrink:0}.modal>p,.modal form>p{font-size:13px;line-height:1.85;color:#7a847c;margin-bottom:18px}.modal label{font-size:12px;font-weight:550;display:block;margin-bottom:9px}.modal input{font-size:16px;padding:12px 13px;width:100%;border:1px solid #dce2d9;border-radius:8px;min-height:46px;outline-offset:2px;color:#5b6856;background:#fafcf8;margin-bottom:16px;min-width:0}.modal input[readonly]{font-size:12px}.full-width{width:100%;min-height:46px}.modal .modal-hint{font-size:11px;color:#8b9585;margin:13px 0 17px;line-height:1.9}.modal>.modal-hint:last-child{margin-bottom:0;text-align:center}.modal-qr{display:flex;justify-content:center;padding:7px 0 24px}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.modal .inline-error{margin:5px 0 13px}.help-steps{list-style:none;padding:6px 0;margin:0}.help-steps li{display:flex;gap:18px;margin:17px 0 23px}.help-steps li>span{font-size:13px;color:#7b955d;font-variant-numeric:tabular-nums;font-weight:600;margin-top:2px}.help-steps strong{font-size:14px;font-weight:550}.help-steps p{font-size:12px;line-height:1.85;color:#7c8776;margin-top:7px}.modal .help-footnote{font-size:11px;padding:14px 16px;background:#f6f8f2;border-radius:10px;line-height:1.9;margin:10px 0 23px;color:#7b8772}#manual-copy{width:100%;height:180px;resize:vertical;border:1px solid var(--border);border-radius:8px;padding:12px;font-size:14px;line-height:1.7;margin-bottom:18px}.is-busy svg{animation:busy 1s ease-in-out infinite}
.clipboard-fallback{position:fixed;left:-9999px;top:0;width:1px;height:1px;opacity:0;pointer-events:none}
.skip-link{top:12px;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link:focus{width:auto;height:auto;padding:12px 18px;clip-path:none}
@keyframes arrive{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@keyframes busy{50%{opacity:.3}}
@media(min-width:1400px){.page{padding-top:58px}.intro{margin-bottom:42px}h1{font-size:39px}#text-input{height:220px}.header{height:90px}}
@media(max-width:1050px){.header{padding:0 30px}.page{padding:36px 30px 0}.workspace{grid-template-columns:270px minmax(0,1fr);gap:20px}.connect-card{padding-left:20px;padding-right:20px}.devices-section{margin-left:-20px;margin-right:-20px;padding-left:20px;padding-right:20px}.intro{align-items:flex-start;flex-direction:column;gap:12px;margin-bottom:25px}.connection{padding:6px 0}h1{font-size:32px}.input-meta{flex-direction:column;align-items:flex-start;gap:5px}.draft-state{border:0;padding-left:0}.composer-footer{padding-top:12px}.composer-heading{padding-left:20px;padding-right:20px}}
@media(max-width:760px){.header{height:74px;padding:0 24px}.brand{font-size:21px}.brand-en{font-size:8px;padding-left:12px}.brand>span:last-child{gap:12px}.brand-mark{width:36px;height:36px;border-radius:10px}.no-login{display:none}.header-actions{gap:5px}.connect-button{display:flex!important;font-size:11px!important;padding:8px}.connect-button svg{width:16px;height:16px}.help-button{width:36px}.page{padding:30px 24px 0}.intro{margin-bottom:23px;gap:14px}.eyebrow{font-size:9px;letter-spacing:1.4px}h1{font-size:29px;margin-top:12px;letter-spacing:-1.4px}.intro-description{font-size:11px;margin-top:7px}.connection{font-size:10px}.workspace{display:flex;flex-direction:column;gap:24px}.transfer-column{width:100%;order:0}.sidebar{width:100%;order:1;display:grid;grid-template-columns:minmax(0,1fr);gap:0}.connect-card{display:none}.space-card{margin:0;padding:14px 17px;background:#f1f3f2}.public-note{padding:12px 4px 0;font-size:10px}.composer{border-radius:14px}.composer-heading{padding:13px 17px 7px}.composer h2{font-size:14px}.heading-icon{width:27px;height:27px}#text-input{width:calc(100% - 36px);margin:7px 18px 0;height:190px;font-size:16px;line-height:1.8;padding-top:10px}#text-input::placeholder{font-size:13px}.composer-footer{padding:15px 18px 19px;gap:12px}.input-meta{font-size:9px;gap:6px}.composer-footer .primary{min-width:118px;font-size:12px;gap:10px}.composer-note{padding:12px 18px;font-size:9px}.keyboard-hint{display:none!important}.history{margin-top:24px}.history-heading{gap:8px;margin-bottom:11px}.history-heading h2{font-size:13px}.retention-label{font-size:9px}.history-title-group{gap:7px}.clear-button{font-size:9px!important}.empty-state{min-height:195px;padding:22px 15px}.empty-state p{font-size:10px;max-width:250px}.footer{flex-direction:column;align-items:flex-start;gap:13px;margin-top:30px;padding:23px 0 27px}.footer>span:last-child{font-size:7px;letter-spacing:1px}.message-card{padding:14px 16px}.message-body{font-size:13px}.message-source{gap:6px}.message-time{font-size:8px}.copy-message{padding:7px 8px}.message-source .message-tag{font-size:8px}.modal{padding:20px 22px 24px}.modal h2{font-size:18px}.toast{bottom:max(24px,env(safe-area-inset-bottom));font-size:12px}.inline-error{margin-left:18px;margin-right:18px}}
.card-description,.intro-description,.no-login{color:#68726b}.eyebrow,.section-eyebrow,.qr-caption,.small-section-title,.space-info>span,.public-note,.retention-label,.input-meta,.draft-state,.message-time,.message-char-count,.empty-state p,.footer,.local-preview-note,.composer-note{color:#707b67}.empty-state h3{color:#607250}.keyboard-hint{color:#74806a!important}
@media(max-width:760px){.brand{flex-shrink:0}.brand>span:last-child{white-space:nowrap}.brand-en{display:none}h1 span{display:block}.intro-description{font-size:12px}.message-body{font-size:15px}.empty-state p{font-size:11px}.input-meta{font-size:10px}.public-note{font-size:11px}.connection{font-size:11px}}
@media(max-width:374px){.header{padding:0 16px}.page{padding-left:16px;padding-right:16px}h1{font-size:26px}.intro-description{font-size:11px}.retention-label{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}