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env(safe-area-inset-bottom));flex-direction:row;z-index:40;border-right:0;border-top:1px solid var(--line);overflow:visible;box-shadow:0 -8px 24px #17231f0f}.f-side-top,.f-workspace,.f-create,.f-nav-label,.f-side-foot{display:none}.f-nav{flex-direction:row;width:100%;justify-content:space-around}.f-nav a{flex-direction:column;gap:3px;padding:7px 2px;font-size:11px;flex:1;text-align:center;border-radius:12px}.f-nav a b{display:none}.f-topbar{padding:10px 12px}.f-crumbs .f-crumb-root,.f-crumbs .f-sep,.f-demo-pill{display:none}.f-mobile-only{display:flex}.f-main{padding:18px 14px calc(var(--nav-h) + 48px)}.f-sheet{top:auto;left:0;width:100vw;height:92vh;border-radius:22px 22px 0 0;transform:translateY(100%)}.f-sheet.wide{width:100vw}.f-sheet-head{border-radius:22px 22px 0 0}.f-form{grid-template-columns:1fr}.f-help-fab{left:14px;right:auto;bottom:calc(var(--nav-h) + 18px + env(safe-area-inset-bottom));padding:10px}.f-help-fab span{display:none}.f-chat{right:12px;bottom:calc(var(--nav-h) + 12px);height:min(560px,calc(100vh - var(--nav-h) - 90px))}.f-zone{padding:18px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.f-zone:has(.f-mail-preview){grid-column:1/-1}.f-mail-preview{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#f3f6fb}.f-mail-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;background:var(--card);border-bottom:1px solid var(--line)}.f-mail-bar select{font:inherit;padding:7px 10px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:inherit}.f-mail-subject{margin:0;font-size:13px;color:var(--ink-3)}.f-mail-frame{display:block;width:100%;height:620px;border:0}.f-field input[type=color]{height:42px;padding:4px;cursor:pointer}