.home-container{width:100%;max-width:1180px;margin-inline:auto;padding-inline:28px}.skip-link{z-index:200;background:var(--card);padding:12px 20px;position:absolute;top:0;left:-9999px}.site-header{z-index:5;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:24px;min-height:80px;padding-block:16px;display:flex}.logo{color:var(--text);font-size:var(--font-size-title);font-weight:var(--font-weight-bold);line-height:var(--line-height-heading);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.nav{align-items:center;gap:22px;display:flex}.nav-link{color:var(--muted);font-size:var(--font-size-secondary);font-weight:var(--font-weight-medium);padding-block:8px;text-decoration:none}.nav-link:hover{color:var(--color-action)}.hero{background:var(--card);padding:76px 0 64px}.hero-layout{grid-template-columns:1fr 1fr;align-items:center;gap:56px;display:grid}.hero-copy{min-width:0}.hero h1{max-width:11em;font-size:var(--font-size-display);font-weight:var(--font-weight-bold);letter-spacing:-.035em;text-wrap:balance;margin:0 0 24px;line-height:1.3}.hero-sub{max-width:26em;font-size:var(--font-size-lead);line-height:var(--line-height-body);color:var(--muted);margin:0 0 32px}.form-card{grid-template-columns:minmax(0,1fr) auto;gap:10px;margin:0;display:grid}.form-card label{font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);grid-column:1/-1;margin-bottom:2px}.input-wrap{background:var(--card);border:1px solid #8695ad;border-radius:8px;align-items:center;min-width:0;display:flex}.input-wrap:focus-within{outline:2px solid var(--color-action);outline-offset:2px}.input-wrap .prefix{color:var(--muted);font-size:var(--font-size-body);white-space:nowrap;padding-left:12px}.input-wrap input{width:100%;min-width:0;color:var(--text);font-size:var(--font-size-body);background:0 0;border:0;border-radius:8px;padding:13px 10px 13px 0}.input-wrap input::placeholder{color:var(--muted)}.input-wrap input:focus-visible{outline:none}.form-actions{display:flex}.form-actions .btn{white-space:nowrap;padding:12px 18px}.form-hint{color:var(--muted);font-size:var(--font-size-secondary);grid-column:1/-1;margin:2px 0 0}.form-hint button{margin-left:6px}.public-rule{max-width:34em;color:var(--muted);font-size:var(--font-size-secondary);align-items:flex-start;gap:8px;margin:20px 0 0;display:flex}.public-rule .icon{flex:none;margin-top:4px}.encryption-note{color:var(--muted);font-size:var(--font-size-secondary);line-height:var(--line-height-body);flex-wrap:wrap;gap:8px 20px;margin:12px 0 0;display:flex}.transfer-demo{min-width:0;margin:0;padding:28px 0 0 10px}.demo-desktop{border:1px solid var(--border);background:var(--card);border-radius:14px;width:88%;overflow:hidden;box-shadow:0 12px 40px #18253b0d}.demo-window-bar{color:var(--muted);background:var(--bg);border-bottom:1px solid var(--border);font-size:var(--font-size-secondary);overflow-wrap:anywhere;align-items:center;gap:8px;padding:13px 18px;display:flex}.demo-window-bar .icon{flex:none}.demo-document{font-size:var(--font-size-body);padding:24px}.demo-device-label{color:var(--muted);font-size:var(--font-size-secondary);margin-bottom:18px;display:block}.demo-document h2{font-size:var(--font-size-heading);line-height:var(--line-height-heading);font-weight:var(--font-weight-strong);margin:0 0 14px}.demo-document p{margin:0 0 10px}.demo-document ul{margin:0;padding-left:20px}.demo-saved{color:var(--color-text-success);font-size:var(--font-size-secondary);align-items:center;gap:6px;margin-top:28px;display:flex}.demo-phone{border:5px solid var(--brand-100);background:var(--card);border-radius:24px;width:65%;margin:-46px 0 0 auto;position:relative;box-shadow:0 10px 30px #18253b0d}.demo-phone-top{color:var(--color-action);font-size:var(--font-size-secondary);align-items:center;gap:8px;padding:16px 16px 0;display:flex}.demo-phone .demo-document{padding:18px 16px 22px}.demo-caption{color:var(--muted);text-align:right;font-size:var(--font-size-secondary);margin-top:18px}.home-section{padding-block:64px;scroll-margin-top:100px}.home-section .section-head{max-width:36em}.section-head h2{font-size:var(--font-size-title);font-weight:var(--font-weight-strong);line-height:var(--line-height-heading);text-wrap:balance;margin:0 0 16px}.section-head p{color:var(--muted);font-size:var(--font-size-body);margin:0}.how-layout{grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:84px;display:grid}.steps{gap:28px;display:grid}.step{gap:20px;min-width:0;display:flex}.step-index{width:32px;height:32px;color:var(--color-action);border:1px solid var(--brand-100);background:var(--brand-050);font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);border-radius:50%;flex:0 0 32px;justify-content:center;align-items:center;margin-top:1px;display:flex}.step h3,.feature h3,.case h3,.privacy-callout h3{font-size:var(--font-size-body);font-weight:var(--font-weight-strong);margin:0 0 6px}.step p,.feature p,.case p{color:var(--muted);font-size:var(--font-size-body);margin:0}#features,#compare,#support{background:var(--card)}.feature-layout{grid-template-columns:1fr 1fr;gap:36px 56px;display:grid}.feature-layout>.section-head,.feature-layout>.features{grid-column:1/-1}.features{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 36px;display:grid}.feature{align-items:flex-start;gap:14px;min-width:0;display:flex}.feature-icon{width:28px;height:28px;color:var(--color-action);flex:0 0 28px;justify-content:center;align-items:center;display:flex}.privacy-callout{border-left:3px solid var(--color-action);background:var(--brand-050);grid-column:1/-1;align-items:flex-start;gap:16px;padding:24px 28px;display:flex}.privacy-callout>.icon{flex:none;margin-top:4px}.privacy-callout p{max-width:58em;font-size:var(--font-size-body);color:var(--muted);margin:0}.format-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;display:grid}.format-layout>.section-head{grid-column:1/-1}.format-sample{border:1px solid var(--border);border-radius:12px;min-width:0;padding:28px}.format-label{color:var(--muted);font-size:var(--font-size-secondary);align-items:center;gap:8px;margin-bottom:28px;display:flex}.format-sample h3{font-size:var(--font-size-heading);font-weight:var(--font-weight-strong);margin:0 0 16px}.format-sample p{font-size:var(--font-size-body);margin:0 0 16px}.format-sample ul{margin:0;padding-left:22px}.format-code{background:var(--bg)}.format-code pre{max-width:100%;font-family:var(--font-family-code);font-size:var(--font-size-body);line-height:var(--line-height-body);white-space:pre;margin:0 0 24px;overflow-x:auto}.format-code code{font:inherit}.format-code p{color:var(--muted);margin:0}.cases-layout>.section-head{margin-bottom:32px}.cases{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px;display:grid}.case{border-top:1px solid var(--border);align-items:flex-start;gap:16px;min-width:0;padding-block:24px;display:flex}.usage-guide>.section-head{margin-bottom:40px}.usage-guide-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;display:grid}.usage-topic{border-top:2px solid var(--brand-100);min-width:0;padding-top:24px}.usage-topic h3{font-size:var(--font-size-heading);font-weight:var(--font-weight-strong);line-height:var(--line-height-heading);align-items:center;gap:10px;margin:0 0 28px;display:flex}.usage-topic h3 .icon{color:var(--color-action)}.usage-topic dl{margin:0}.usage-topic dl>div+div{margin-top:28px}.usage-topic dt,.privacy-question dt{font-size:var(--font-size-body);line-height:var(--line-height-body);font-weight:var(--font-weight-strong);margin:0 0 10px}.usage-topic dd,.privacy-question dd{color:var(--muted);font-size:var(--font-size-body);line-height:var(--line-height-body);margin:0}.privacy-guide{border-top:1px solid var(--border);margin-top:56px;padding-top:40px;scroll-margin-top:100px}.privacy-guide h3{font-size:var(--font-size-heading);font-weight:var(--font-weight-strong);line-height:var(--line-height-heading);margin:0 0 12px}.privacy-questions{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 56px;margin:32px 0 0;display:grid}.privacy-question{min-width:0}@media (width<=800px){.usage-guide-grid,.privacy-questions{grid-template-columns:minmax(0,1fr);gap:32px}.privacy-guide{margin-top:40px;padding-top:32px;scroll-margin-top:88px}.usage-guide>.section-head{margin-bottom:28px}.usage-topic h3{margin-bottom:20px}.usage-topic dl>div+div{margin-top:20px}}.support-card{justify-content:space-between;align-items:center;gap:32px;padding-block:16px;display:flex}.support-card h2{font-size:var(--font-size-title);font-weight:var(--font-weight-strong);line-height:var(--line-height-heading);margin:0 0 12px}.support-card p{font-size:var(--font-size-body);color:var(--muted);margin:0}.support-card .btn{flex:none}.home-footer{border-top:1px solid var(--border);background:var(--bg);padding:48px 0 24px}.footer-grid{grid-template-columns:1.3fr .7fr 1fr;gap:72px;display:grid}.footer-grid>div>p{color:var(--muted);font-size:var(--font-size-body);margin:20px 0 14px}.footer-grid h2{font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);margin:0 0 18px}.footer-grid nav{flex-direction:column;align-items:flex-start;gap:12px;display:flex}.footer-grid nav a,.footer-grid nav button,.footer-grid>div>button{color:var(--muted);font-size:var(--font-size-secondary);text-decoration:none}.footer-grid details{margin-top:16px}.footer-grid summary{cursor:pointer;font-size:var(--font-size-secondary);font-weight:var(--font-weight-medium)}.footer-grid details p{font-size:var(--font-size-body);color:var(--muted)}.footer-bottom{border-top:1px solid var(--border);color:var(--muted);font-size:var(--font-size-secondary);flex-wrap:wrap;justify-content:space-between;gap:16px;margin-top:48px;padding-top:20px;display:flex}@media (width<=1000px){.nav{gap:14px}.hero-layout{gap:32px}.form-card{grid-template-columns:minmax(0,1fr)}.form-actions .btn{width:100%}.how-layout{gap:40px}.features{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=800px){.home-container{padding-inline:24px}.header-inner{min-height:72px}.nav .nav-link{display:none}.hero{padding:48px 0}.hero-layout{grid-template-columns:minmax(0,1fr);gap:44px}.hero-copy{max-width:580px}.hero h1{font-size:var(--font-size-display-compact);max-width:12em}.hero-sub{font-size:var(--font-size-body);max-width:32em;margin-bottom:28px}.form-card{grid-template-columns:minmax(0,1fr) auto}.transfer-demo{width:100%;max-width:520px;margin-inline:auto;padding:0}.home-section{padding-block:44px;scroll-margin-top:88px}.how-layout{grid-template-columns:minmax(0,1fr);gap:32px}.feature-layout{gap:28px}.features,.format-layout{gap:24px}.cases{gap:0 28px}.support-card{flex-direction:column;align-items:flex-start;gap:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:36px}.footer-grid>div:first-child{grid-column:1/-1}}@media (width<=520px){.home-container{padding-inline:20px}.header-inner{flex-wrap:wrap;gap:16px}.home-bookmark .bookmark-label{display:none}.nav{gap:8px}.nav .home-bookmark{padding:10px}.nav>.btn{white-space:nowrap;flex:none}.header-inner .nav{margin-left:auto}.logo{font-size:var(--font-size-heading)}.form-card,.features,.feature-layout,.format-layout,.cases,.footer-grid{grid-template-columns:minmax(0,1fr)}.form-actions .btn{width:100%}.transfer-demo{max-width:360px}.demo-desktop{width:94%}.demo-phone{width:79%;margin-top:-24px}.demo-document{padding:20px 18px}.demo-window-bar{padding:12px}.privacy-callout{gap:12px;padding:20px}.privacy-callout>.icon{display:none}.format-sample{padding:24px 20px}.format-code pre{font-size:var(--font-size-body)}.home-footer{padding-top:36px}.footer-grid{gap:32px}.footer-bottom{flex-direction:column;margin-top:36px}}:root{--font-family-body:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;--font-family-code:ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;--font-size-body:1rem;--font-size-secondary:.875rem;--font-size-meta:.75rem;--font-size-lead:1.125rem;--font-size-heading:1.25rem;--font-size-title:1.5rem;--font-size-display-compact:2rem;--font-size-display:clamp(2rem, 1.25rem + 2vw, 3rem);--line-height-body:1.75;--line-height-control:1.5;--line-height-heading:1.35;--font-weight-regular:400;--font-weight-medium:500;--font-weight-strong:600;--font-weight-bold:700;--color-text-primary:#0f172a;--color-text-secondary:#59677c;--color-text-warning:#85612b;--color-text-danger:#ad4050;--color-text-success:#28755d;--color-code-number:#965419;--color-action:#3159db;--color-action-emphasis:#2748b4;--color-border:#dee5f0;font-size:100%}@media (prefers-color-scheme:dark){:root{--color-text-primary:#e2e8f0;--color-text-secondary:#a2b0c4;--color-text-success:#8ed8bb;--color-text-danger:#f6b6c3;--color-text-warning:#f2d6a2;--color-code-number:#edbd82;--color-action:#9dbdff;--color-action-emphasis:#c2d4ff;--color-border:#334155}}:root{font-family:var(--font-family-body);line-height:var(--line-height-body);color:var(--color-text-primary);background:var(--bg);font-synthesis:none;--brand:#3159db;--brand-700:#2748b4;--brand-050:#edf2ff;--brand-100:#d8e3ff;--bg:#f3f6fa;--card:#fff;--text:var(--color-text-primary);--muted:var(--color-text-secondary);--border:#e2e8f0;--shadow-sm:0 1px 2px #0f172a0d;--shadow-md:0 1px 2px #0f172a0d, 0 10px 30px #0f172a12}*{box-sizing:border-box}html{scroll-behavior:smooth}body{-webkit-font-smoothing:antialiased;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:var(--color-action)}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,input,select{line-height:var(--line-height-control)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,pre:focus-visible,[role=tab]:focus-visible{outline:2px solid var(--color-action);outline-offset:2px}.app{min-height:100vh}.btn{appearance:none;background:var(--brand);color:#fff;font-weight:var(--font-weight-strong);font-size:var(--font-size-secondary);cursor:pointer;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:10px 16px;font-family:inherit;text-decoration:none;transition:background .2s,border-color .2s;display:inline-flex}.btn:hover{filter:brightness(1.04)}.primary{background:var(--brand);color:#fff}.primary:hover{background:var(--brand-700)}.btn.ghost,.secondary{background:var(--card);color:var(--text);border-color:var(--border)}.btn.ghost:hover{border-color:var(--brand);color:var(--color-action)}.btn.flat{background:var(--brand-050);color:var(--color-action);border-color:var(--brand-100)}.danger{color:var(--color-text-danger)!important}.inline-button{color:var(--color-action);font-size:var(--font-size-secondary);line-height:var(--line-height-body);cursor:pointer;background:0 0;border:0;padding:0}.inline-button:hover{text-decoration:underline}.input{width:100%;font-size:var(--font-size-body);background:var(--bg);color:var(--text);border:1px solid #8695ad;border-radius:10px;outline:none;padding:11px 13px}.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-100)}.version{font-size:var(--font-size-meta);font-weight:var(--font-weight-strong);color:var(--color-action);background:var(--brand-050);border:1px solid var(--brand-100);white-space:nowrap;border-radius:99px;padding:1px 8px}.skip-link{background:var(--card);z-index:200;padding:8px 16px;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}.board-container{grid-template-columns:minmax(0,1fr) 280px;gap:24px;max-width:1180px;margin:0 auto;padding:24px;display:grid}.board-header{border-bottom:1px solid var(--border);flex-wrap:wrap;grid-column:1/-1;justify-content:space-between;align-items:center;gap:20px;padding:0 0 24px;display:flex}.board-brand{flex:320px;align-items:center;gap:14px;min-width:0;display:flex}.board-logo{flex:none;text-decoration:none;display:flex}.board-identity{gap:2px;min-width:0;display:grid}.board-brand-label{font-size:var(--font-size-heading);font-weight:var(--font-weight-bold);letter-spacing:-.04em}.board-name{text-overflow:ellipsis;white-space:nowrap;font-size:var(--font-size-secondary);color:var(--muted);font-weight:var(--font-weight-regular);overflow:hidden}.home-link{font-size:var(--font-size-secondary);color:var(--muted);white-space:nowrap;margin-left:auto;text-decoration:none}.home-link:hover{color:var(--color-action)}.actions{flex-wrap:wrap;gap:8px;display:flex}.board-main{background:var(--card);border:1px solid var(--border);border-radius:16px;flex-direction:column;align-self:start;min-width:0;padding:24px;display:flex}.main-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.main-head h1{font-size:var(--font-size-heading);line-height:var(--line-height-heading);font-weight:var(--font-weight-strong);flex-wrap:wrap;align-items:center;gap:10px;margin:0;display:flex}.badge{font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);background:var(--brand-050);border:1px solid var(--brand-100);color:var(--color-action);border-radius:99px;padding:2px 9px}.badge.readonly{color:var(--muted);border-color:var(--border);background:0 0}.format-shortcuts{font-size:var(--font-size-secondary);position:relative}.format-shortcuts summary{color:var(--muted);cursor:pointer}.format-shortcuts>div{z-index:2;background:var(--card);border:1px solid var(--border);width:180px;box-shadow:var(--shadow-md);border-radius:8px;padding:8px;position:absolute;top:100%;right:0}.format-shortcuts button{text-align:left;width:100%;color:var(--text);font-size:var(--font-size-secondary);background:0 0;border:0;padding:8px;display:block}.format-shortcuts button:hover{background:var(--brand-050)}.tabs-bar{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:flex-end;gap:8px;margin-bottom:18px;padding-bottom:0;display:flex}.tabs{flex-wrap:wrap;flex:1;gap:6px 4px;min-width:0;display:flex}.tab{color:var(--muted);font-size:var(--font-size-secondary);font-weight:var(--font-weight-medium);cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;background:0 0;border:1px solid #0000;border-bottom-width:2px;border-radius:6px 6px 0 0;flex:none;align-items:center;gap:5px;max-width:190px;padding:8px 10px;display:flex;position:relative;top:1px}.tab:hover{color:var(--text);background:var(--brand-050)}.tab.active{background:var(--card);color:var(--color-action);font-weight:var(--font-weight-strong);border-bottom-color:var(--brand)}.tab-title{text-overflow:ellipsis;white-space:nowrap;min-width:24px;max-width:130px;overflow:hidden}.tab-close{color:var(--muted);cursor:pointer;font-size:var(--font-size-body);line-height:var(--line-height-control);background:0 0;border:none;border-radius:5px;flex-shrink:0;min-width:24px;min-height:24px;padding:0;font-family:inherit}.tab-close:hover{color:var(--color-text-danger);background:#dc26261f}.tab-rename-input{border:1px solid var(--brand);width:110px;font-size:var(--font-size-secondary);color:var(--text);background:var(--card);border-radius:5px;padding:2px 5px;font-family:inherit}.tab-add{color:var(--muted);font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;flex:none;padding:8px 12px;font-family:inherit;position:relative;top:1px}.tab-add:hover{color:var(--color-action);border-color:var(--brand);background:var(--brand-050)}.board-access-note{font-size:var(--font-size-secondary);color:var(--muted);line-height:var(--line-height-body);align-items:flex-start;gap:8px;margin:0 0 18px;display:flex}.board-access-note .icon{margin-top:3px}.editor-shell{background:var(--card);border:1px solid #8695ad;border-radius:10px;flex-direction:column;flex:1;min-width:0;min-height:420px;display:flex;overflow:hidden}.editor-format{padding:6px 12px 0}.editor-format summary{cursor:pointer;font-size:var(--font-size-secondary);color:var(--muted);list-style:none;display:inline}.editor-format summary::-webkit-details-marker{display:none}.editor-format summary:after{content:" ▾"}.editor-format[open] summary:after{content:" ▴"}.editor-tools{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:4px;padding:8px 0;display:flex}.tool{color:var(--muted);font-size:var(--font-size-secondary);background:0 0;border:0;border-radius:5px;min-width:30px;min-height:32px;padding:4px 7px}.tool:hover,.tool.active{background:var(--brand-100);color:var(--color-action-emphasis)}.tool[aria-label=加粗]{font-weight:var(--font-weight-bold)}.tool[aria-label=斜体]{font-style:italic}.tool[aria-label=下划线]{text-decoration:underline}.tool-divider{background:var(--border);width:1px;height:16px;margin:0 4px}.editor-tools select{font-size:var(--font-size-secondary);color:var(--text);background:var(--card);border:1px solid #8695ad;border-radius:5px;max-width:100%;padding:5px}.editor-shell>div:last-child{flex-direction:column;flex:1;min-width:0;display:flex}.tiptap{width:100%;min-height:420px;font-family:var(--font-family-body);font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--text);overflow-wrap:anywhere;outline:none;flex:1;padding:20px 18px}.tiptap:focus-visible{outline-offset:-2px}.tiptap p{margin:.5em 0}.tiptap>:first-child{margin-top:0}.tiptap h1{font-size:var(--font-size-title)}.tiptap h2{font-size:var(--font-size-heading)}.tiptap h3{font-size:var(--font-size-body)}.tiptap a{color:var(--color-action);text-decoration:underline}.tiptap blockquote{color:var(--muted);border-left:3px solid #b6c8ea;margin:16px 0;padding:2px 18px}.tiptap code{font-size:var(--font-size-body);font-family:var(--font-family-code);background:var(--brand-050);border-radius:3px;padding:2px 4px}.tiptap pre{font-family:var(--font-family-code);font-size:var(--font-size-body);background:var(--card);border:1px solid var(--border);white-space:pre;line-height:var(--line-height-body);border-radius:8px;padding:16px;overflow-x:auto}.tiptap pre code{font-size:inherit;background:0 0;padding:0}.tiptap .hljs-keyword,.tiptap .hljs-selector-tag{color:#81519c}.tiptap .hljs-string,.tiptap .hljs-title{color:var(--color-text-success)}.tiptap .hljs-number,.tiptap .hljs-literal{color:var(--color-code-number)}.tiptap .hljs-comment{color:var(--muted)}.editor-loading{font-size:var(--font-size-body);color:var(--muted);padding:35px}.save-bar{font-size:var(--font-size-secondary);line-height:var(--line-height-body);color:var(--muted);flex-wrap:wrap;gap:10px;margin-top:12px;display:flex}.save-state{color:var(--color-text-success);margin-right:auto}.save-state.failed{color:var(--color-text-danger)}.character-count{font-size:var(--font-size-meta)}.board-sidebar{flex-direction:column;gap:16px;min-width:0;display:flex}.card{background:var(--card);border:1px solid var(--border);box-shadow:none;border-radius:14px;padding:16px}.card h2{font-size:var(--font-size-body);font-weight:var(--font-weight-strong);margin:0 0 12px}.rail-description{color:var(--muted);font-size:var(--font-size-secondary);line-height:var(--line-height-body);margin:-4px 0 20px}.workspace-settings{background:0 0;border:0;padding:0 4px 8px}.workspace-settings h2{margin-bottom:12px}.workspace-settings>.inline-button{margin-top:16px}.setting-action{border:0;border-bottom:1px solid var(--border);width:100%;color:var(--text);font-size:var(--font-size-secondary);text-align:left;background:0 0;align-items:center;gap:8px;padding:14px 0;display:flex}.setting-action>span{color:var(--muted);margin-left:auto}.setting-action:hover{color:var(--color-action)}.qr-wrap{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.qr-box{border-top:1px solid var(--border);min-width:0;padding-top:14px}.qr-label{font-size:var(--font-size-secondary);color:var(--muted);font-weight:var(--font-weight-medium);margin-bottom:6px}.qr{color:#59677c;height:112px;font-size:var(--font-size-secondary);background:#fff;border-radius:10px;justify-content:center;align-items:center;display:flex}.qr img{border-radius:4px;width:104px;height:104px}.link{margin-top:8px;display:flex}.link input{min-width:0;font-size:var(--font-size-secondary);background:var(--card);color:var(--text);border:1px solid #8695ad;border-right:none;border-radius:9px 0 0 9px;outline:none;flex:1;padding:8px 6px}.link button{background:var(--brand-050);color:var(--color-action);cursor:pointer;font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);border:1px solid #8695ad;border-left:none;border-radius:0 9px 9px 0;padding:8px 6px}.access-details{border-top:1px solid var(--border);margin-top:18px;padding-top:16px}.access-details summary{cursor:pointer;color:var(--muted);font-size:var(--font-size-secondary)}.access-details[open] summary{margin-bottom:12px}.info-row{border-bottom:1px dashed var(--border);font-size:var(--font-size-secondary);line-height:var(--line-height-body);color:var(--text);justify-content:space-between;gap:10px;padding:7px 0;display:flex}.info-row:last-child{border-bottom:none}.info-row>span:first-child{color:var(--muted);flex-shrink:0}.info-row>span:last-child{text-align:right;overflow-wrap:anywhere;min-width:0}.board-footer{text-align:center;color:var(--muted);font-size:var(--font-size-secondary);line-height:var(--line-height-body);grid-column:1/-1;padding:14px 0 6px}.board-footer a{font-weight:var(--font-weight-medium);text-decoration:none}.board-footer .version{margin:0 4px}.toast{color:#fff;max-width:min(520px,100vw - 32px);box-shadow:var(--shadow-md);z-index:30;font-size:var(--font-size-secondary);line-height:var(--line-height-body);background:#28755d;border-radius:11px;align-items:center;gap:12px;padding:10px 14px;display:flex;position:fixed;bottom:16px;right:16px}.toast button{color:#fff;font-size:var(--font-size-body);background:0 0;border:0;min-width:28px;min-height:28px;padding:4px}.modal-backdrop{z-index:20;background:#0f172a8c;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border:1px solid var(--border);width:100%;max-width:480px;box-shadow:var(--shadow-md);border-radius:18px;max-height:90dvh;padding:32px;position:relative;overflow-y:auto}.modal h2{font-size:var(--font-size-title);font-weight:var(--font-weight-strong);line-height:var(--line-height-heading);margin:0 25px 14px 0}.modal p{font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--muted);margin:0 0 14px}.modal .modal-desc,.share-status{font-size:var(--font-size-body);line-height:var(--line-height-body);color:var(--muted);margin:12px 0}.modal .foot{justify-content:flex-end;gap:8px;margin-top:16px;display:flex}.modal-close{font-size:var(--font-size-title);color:var(--muted);background:0 0;border:0;min-width:32px;min-height:32px;line-height:1;position:absolute;top:16px;right:16px}.modal .input{margin-bottom:10px}.modal label{font-size:var(--font-size-secondary);line-height:var(--line-height-body)}.bookmark-steps{margin:24px 0}.bookmark-steps>div+div{margin-top:20px}.bookmark-steps dt{font-size:var(--font-size-secondary);font-weight:var(--font-weight-strong);margin-bottom:6px}.bookmark-steps dd{font-size:var(--font-size-body);color:var(--muted);line-height:var(--line-height-body);margin:0}.bookmark-steps kbd{border:1px solid var(--border);background:var(--bg);color:var(--text);font-family:var(--font-family-body);font-size:inherit;border-radius:4px;padding:1px 5px}.bookmark-privacy{background:var(--brand-050);border-radius:8px;padding:12px}.support-actions{flex-wrap:wrap;gap:10px;display:flex}.share-advanced{border-top:1px solid var(--border);margin-top:20px;padding-top:14px}.share-advanced summary{font-size:var(--font-size-secondary);color:var(--muted);cursor:pointer}.share-advanced button{margin:7px 5px 7px 0}.share-advanced p{font-size:var(--font-size-secondary)}.conflict-banner{font-size:var(--font-size-secondary);color:var(--color-text-warning);background:#fff8e9;border:1px solid #e9d7ac;border-radius:8px;margin:0 0 12px;padding:16px}.conflict-banner p{font-size:var(--font-size-body)}.error-banner,.page-error{color:#9b3540;font-size:var(--font-size-secondary);line-height:var(--line-height-body);background:#fff1ef;border:1px solid #e7b2b7;border-radius:8px;margin-bottom:12px;padding:14px}.page-error{z-index:8;width:calc(100% - 32px);max-width:600px;position:fixed;top:75px;left:50%;transform:translate(-50%)}@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#0f172a;--border:#334155;--brand:#345fe5;--brand-700:#3156cc;--brand-050:#15264b;--brand-100:#243e73;--shadow-sm:0 1px 2px #0006;--shadow-md:0 1px 2px #0006, 0 10px 30px #0006}.tiptap .hljs-keyword,.tiptap .hljs-selector-tag{color:#d0a9f0}.error-banner,.page-error{color:#f7bdc7;background:#401d29}.conflict-banner{color:#f2d6a2;background:#352c18;border-color:#867149}.toast{background:#225b49}.btn.primary{color:#fff}}@media (width<=900px){.board-container{grid-template-columns:minmax(0,1fr);gap:20px;padding:20px}.board-header{padding-bottom:20px}.board-sidebar{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;display:grid}.board-sidebar>.card:last-child{grid-column:1/-1}.board-sidebar .qr-wrap{grid-template-columns:repeat(2,minmax(0,1fr))}.editor-shell,.tiptap{min-height:46vh}}@media (width<=600px){.board-container{gap:16px;padding:16px 12px}.board-header{gap:18px}.board-brand{flex-basis:100%;gap:10px}.board-identity{max-width:calc(100% - 140px)}.board-sidebar{align-items:stretch;display:flex}.board-main{border-radius:12px;padding:16px 12px}.main-head{margin-bottom:20px}.actions{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;width:100%;display:grid}.actions .btn{padding:10px 4px}.actions .icon{display:none}.save-bar .save-state{flex-basis:100%}.tab{max-width:150px}.tab-title{max-width:92px}.toast{max-width:calc(100vw - 24px);bottom:12px;right:12px}.modal-backdrop{padding:12px}.modal{padding:24px 18px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}.modal .share-status{font-size:var(--font-size-secondary)}.icon{vertical-align:-.15em;flex-shrink:0;width:1.125rem;height:1.125rem}.logo-mark .icon{width:1.125rem;height:1.125rem}.board-logo .icon{width:1rem;height:1rem}.feature-icon .icon{width:1.25rem;height:1.25rem}.support-icon .icon{width:1.75rem;height:1.75rem}.trust-chips>span{align-items:center;gap:.375rem;display:inline-flex}.editor-shell .tiptap pre{white-space:pre}.editor-content{position:relative}.editor-content>div:not(.editor-placeholder){flex-direction:column;flex:1;min-width:0;display:flex}.editor-placeholder{pointer-events:none;color:var(--color-text-secondary);font-family:var(--font-family-body);font-size:var(--font-size-body);line-height:var(--line-height-body);position:absolute;top:20px;left:18px;right:18px}.modal.confirm{max-width:400px}.delete-confirm{color:#fff;background:#b42334}.delete-confirm:hover{background:#971a29}button.tab-title{color:inherit;font:inherit;cursor:pointer;text-align:left;background:0 0;border:0;padding:0}.tabs-owner{position:absolute}.tab-title-editing{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.brand-symbol{flex:none;width:39px;height:33px;display:block;overflow:visible}.board-logo{background:0 0;border-radius:0;width:39px;height:33px}.board-footer .footer-slogan{font-size:var(--font-size-secondary)}.compact-tools{background:var(--card);gap:6px;padding:8px 10px}.editor-more-format{background:var(--card);border-bottom:1px solid var(--border);padding:0 10px 8px}.editor-more-format summary{color:var(--muted);font-size:var(--font-size-secondary);line-height:var(--line-height-body);cursor:pointer}.editor-more-format .editor-tools{border:0;padding-bottom:0}.code-block-view{border:1px solid var(--border);background:var(--card);border-radius:8px;min-width:0;margin:1em 0;overflow:hidden}.code-block-header{background:var(--bg);border-bottom:1px solid var(--border);font-family:var(--font-family-body);font-size:var(--font-size-secondary);line-height:var(--line-height-control);flex-wrap:wrap;align-items:center;gap:8px;padding:8px 10px;display:flex}.code-block-header select,.code-block-header button{background:var(--card);color:var(--text);min-height:32px;font-size:var(--font-size-secondary);line-height:var(--line-height-control);border:1px solid #8695ad;border-radius:5px;padding:4px 8px}.code-block-header select{flex:8rem;min-width:0;max-width:100%}.code-block-header button{flex:none}.code-block-header select:disabled{opacity:1;color:var(--muted)}.code-block-body{min-width:0;display:flex}.code-line-numbers{background:var(--bg);border-right:1px solid var(--border);min-width:3ch;color:var(--muted);font-family:var(--font-family-code);font-size:var(--font-size-body);line-height:var(--line-height-body);text-align:right;-webkit-user-select:none;user-select:none;pointer-events:none;flex-direction:column;flex:none;padding:12px 8px;display:flex}.code-line-numbers span{display:block}.tiptap pre.code-block-scroll{background:var(--card);min-width:0;font-family:var(--font-family-code);font-size:var(--font-size-body);line-height:var(--line-height-body);white-space:pre;border:0;border-radius:0;flex:1 1 0;margin:0;padding:12px;overflow-x:auto}.tiptap pre.code-block-scroll code{white-space:pre;line-height:inherit;display:block}.code-block-hint{border-top:1px solid var(--border);color:var(--muted);font-family:var(--font-family-body);font-size:var(--font-size-secondary);line-height:var(--line-height-body);margin:0;padding:6px 10px}.compact-tools .editor-more-format{background:0 0;border:0;margin-left:auto;padding:0}.compact-tools .editor-more-format[open]{flex-basis:100%;margin-left:0}.compact-tools .editor-more-format summary{min-height:32px;line-height:var(--line-height-control);padding:4px 7px}.code-block-header .code-block-hint{border:0;flex:10rem;margin:0;padding:0}.recovery-preview{border:1px solid var(--border);background:var(--bg);max-height:12rem;color:var(--text);font-family:var(--font-family-code);font-size:var(--font-size-body);line-height:var(--line-height-body);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:8px;padding:12px;overflow:auto}