:root{--bg:#f3f5f8;--sidebar-bg:#f6f7f9;--surface:#ffffff;--line:#e4e7ec;--line-strong:#d5dae2;--text:#1b2430;--muted:#5d6b7c;--faint:#8b97a6;--blue:#1a73e8;--blue-dark:#1558b0;--blue-soft:#e8f1fd;--blue-bar:#f4f8fd;--danger:#b42318;--ok:#067647;--warn:#9a6700;--warn-bg:#fff8eb;--shadow:0 8px 28px rgba(16,24,40,0.16);--header:78px;--identity:48px;--sidebar-w:252px;--list:424px;--font:"Segoe UI","Segoe UI Variable Text",system-ui,sans-serif;color:var(--text);font-family:var(--font);font-size:13px;background:var(--bg)}*{box-sizing:border-box}body,html{margin:0;height:100%}body{color:var(--text);background:var(--bg)}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}:focus-visible{outline:2px solid var(--blue);outline-offset:1px}a{color:var(--blue)}.app{height:100vh;display:grid;grid-template-rows:var(--header) var(--identity) minmax(0,1fr);min-width:0}.header{display:grid;grid-template-columns:280px minmax(180px,640px) 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button:hover{background:var(--blue-soft)}.identity{display:flex;align-items:center;gap:12px;padding:0 14px;background:var(--blue-bar);border-bottom:1px solid #d7e6f8;position:relative}.identity-label{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:#3d5f8a}.identity-btn{display:flex;align-items:center;gap:8px;border:1px solid #c9ddf6;background:white;border-radius:8px;padding:4px 8px 4px 4px;min-width:280px}.identity-name{font-weight:700;line-height:1.15}.identity-mail{color:var(--muted);line-height:1.15}.identity-panel{position:absolute;top:44px;left:210px;width:min(460px,calc(100vw - 32px));background:white;border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);z-index:25;max-height:420px;overflow:auto;padding:8px}.biz-sub,.identity-item{width:100%;text-align:left;border:0;background:transparent;border-radius:6px;padding:7px 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4px}.back-btn,.nav-toggle{display:none}@media (max-width:1100px){.workspace{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}.workspace.read-open .list-pane,.workspace:not(.read-open) .read-pane{display:none}.back-btn{display:inline-flex}}@media (max-width:800px){.app,body,html{background:#fff}.app{height:100dvh;grid-template-rows:auto minmax(0,1fr);font-size:14px}.header{display:flex;align-items:center;gap:0;margin:8px 12px 4px;padding:0 4px 0 2px;height:56px;border:0;border-radius:28px;background:#eaf1fb}.brand{gap:0}.brand-name,.desk-pill,.desk-search,.desk-tool,.identity,.mark,.read-from .star,.search kbd{display:none}.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:48px;border:0;border-radius:50%;color:#444746}.nav-toggle,.search{height:48px;background:transparent}.search{flex:1 1;border:0;border-radius:0;padding:0 4px}.search input{font-size:16px}.search 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0;color:#5f6368;font-size:12px}.drawer-panel{left:0;top:72px;width:100%}.nav-btn{border-radius:999px;min-height:44px;padding:0 16px 0 12px;color:#1f1f1f;font-size:14px}.nav-btn .icon{width:20px;height:20px}.nav-btn.mob-nav{display:flex}.nav-btn[aria-current=page]{background:#d3e3fd;color:#041e49;font-weight:700}.nav-btn[aria-current=page] .icon{color:#041e49}.nav-long{display:none}.nav-short{display:block;flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.count{background:transparent;color:#1f1f1f;font-weight:700;min-width:0;height:auto}.nav-btn[aria-current=page] .count{color:#041e49}.biz-btn{border-radius:999px;min-height:48px;padding:6px 12px}.settings{grid-column:1/-1;padding:12px 16px calc(24px + env(safe-area-inset-bottom))}.mob-list-head{display:flex;align-items:center;justify-content:space-between;padding:10px 16px 4px;color:#1f1f1f;font-size:14px}.mob-list-head .tool{width:40px;height:40px;border-radius:50%}.list-pane .toolbar,.list-pane.selecting .mob-list-head{display:none}.list-pane.selecting .toolbar{display:flex;position:fixed;top:0;left:0;right:0;z-index:25;background:#fff;min-height:56px;padding:0 4px;border-bottom:1px solid #e0e0e0}.mob-only{display:inline-flex}.sel-count{display:inline;font-size:18px;font-weight:500}.rows{padding-bottom:calc(96px + env(safe-area-inset-bottom))}.row{grid-template-columns:40px minmax(0,1fr) 40px;gap:0 8px;align-items:start;padding:12px 4px 12px 16px;border-bottom:0}.row+.row{border-top:1px solid #f1f3f4}.row.picked{background:#e8f0fe}.dot,.row-check{display:none}.row-avatar{display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:50%;color:#fff;font-size:14px;font-weight:700;padding:0;margin-top:2px}.row-avatar.picked{background:#1a73e8!important}.row-avatar .icon{width:22px;height:22px}.row-open{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"from when" "subject subject" "snippet 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.star:not(.on){color:#c4c7c5}.star.on{color:#f9ab00}.fab{display:inline-flex;align-items:center;gap:12px;position:fixed;z-index:20;right:16px;bottom:calc(16px + env(safe-area-inset-bottom));height:56px;width:auto;padding:0 20px 0 16px;border:0;border-radius:16px;background:#c2e7ff;color:#001d35;font-weight:650;font-size:14px;box-shadow:0 1px 3px rgba(0,0,0,.3),0 4px 8px 3px rgba(0,0,0,.15)}.fab .icon{width:24px;height:24px}.app.nav-open .fab,.workspace.read-open .list-pane{display:none}.workspace.read-open .read-pane{display:flex;position:fixed;inset:0;z-index:28;background:#fff}.read-toolbar{position:-webkit-sticky;position:sticky;top:0;z-index:2;background:#fff;min-height:56px;padding:4px;border-bottom:0}.read-subject{font-size:22px;font-weight:400;line-height:1.3}.read-avatar{width:40px;height:40px;font-size:14px}.read-head{padding:8px 16px 12px;border-bottom:0}.read-from .pill{display:none}.read-from{flex-wrap:wrap}.read-from strong{font-size:15px}.frame{padding:0 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