:root{--ink: #171a22;--muted: #7a808e;--line: #e5e7ed;--page: #f5f6f8;--surface: #ffffff;--blue: #315efb;--blue-dark: #2448ce;--blue-soft: #eef2ff;--danger: #d14653}*{box-sizing:border-box}html{min-width:320px;background:var(--page)}body{margin:0;color:var(--ink);background:var(--page);font-family:SF Pro Text,PingFang SC,Microsoft YaHei,system-ui,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.58}.board-shell{width:min(100%,700px);min-height:100vh;margin:0 auto;padding-bottom:max(44px,env(safe-area-inset-bottom))}.topbar{position:sticky;z-index:10;top:0;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:64px;padding:max(10px,env(safe-area-inset-top)) 20px 10px;border-bottom:1px solid rgba(229,231,237,.9);background:#ffffffe0;backdrop-filter:blur(18px) saturate(1.35)}h1,h2,p{margin-top:0}h1{grid-column:2;margin-bottom:0;font-size:16px;font-weight:760;line-height:1;letter-spacing:-.02em}.message-count{display:flex;grid-column:1;grid-row:1;align-items:baseline;gap:4px;justify-self:start;color:var(--muted);font-size:12px}.message-count strong{color:var(--ink);font-size:14px}.add-button{display:grid;grid-column:3;grid-row:1;width:44px;height:44px;place-items:center;justify-self:end;border:0;border-radius:50%;background:var(--blue);color:#fff;box-shadow:0 5px 12px #315efb38;transition:background .16s ease,transform .16s ease}.add-button span{font-size:25px;font-weight:350;line-height:1;transform:translateY(-1px)}.add-button:hover{background:var(--blue-dark)}.add-button:active{transform:scale(.9)}.messages-panel{padding:20px}.message-grid{display:grid;overflow:hidden;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 8px 26px #171a220b}.message-card{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;min-height:96px;padding:16px 13px 16px 20px;border-bottom:1px solid var(--line);background:var(--surface);transition:background .16s ease,transform .16s ease}.message-card:last-child{border-bottom:0}.message-card:hover{background:#fafbff}.memo-body{min-width:0}.message-content{display:-webkit-box;margin:0 0 7px;overflow:hidden;color:#252a36;font-size:15px;font-weight:560;line-height:1.55;overflow-wrap:anywhere;-webkit-box-orient:vertical;-webkit-line-clamp:2}.card-topline{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px}.card-topline strong{color:#555c6d;font-size:11px;font-weight:650}.card-topline time{white-space:nowrap}.card-actions,.edit-actions,.dialog-actions{display:flex;align-items:center;justify-content:flex-end;gap:4px}.text-button,.delete-button,.cancel-button{min-width:52px;min-height:44px;padding:0 11px;border:0;border-radius:10px;background:transparent;font-size:12px;font-weight:750}.text-button,.cancel-button{color:var(--blue-dark)}.text-button:hover,.cancel-button:hover{background:var(--blue-soft)}.delete-button{color:var(--danger)}.delete-button:hover{background:#fff0f1}.edit-form,.composer-form{display:grid;gap:15px}.edit-form{grid-column:1 / -1;grid-template-columns:130px minmax(0,1fr) auto;align-items:end;width:100%;padding:4px 3px 4px 0}label{display:grid;gap:6px;color:#555c6d;font-size:12px;font-weight:700}input,textarea{width:100%;border:1px solid #dcdfe7;border-radius:11px;outline:0;background:#f8f9fb;color:var(--ink);font-size:16px}input{min-height:46px;padding:0 13px}textarea{min-height:104px;padding:12px 13px;resize:vertical}input:focus,textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px #315efb1a}.save-button,.primary-button{min-height:44px;padding:0 18px;border:0;border-radius:10px;background:var(--blue);color:#fff;font-size:13px;font-weight:780;transition:background .16s ease,transform .16s ease}.save-button:hover,.primary-button:hover{background:var(--blue-dark)}.save-button:active,.primary-button:active{transform:scale(.96)}.empty-state{display:grid;min-height:240px;place-items:center;align-content:center;padding:32px;color:var(--muted);text-align:center}.empty-state strong{color:var(--ink);font-size:16px}.empty-state p{margin:5px 0 0;font-size:13px}.status{position:fixed;z-index:30;top:76px;left:50%;margin:0;padding:9px 13px;border:1px solid #f4ccd0;border-radius:10px;background:#fff6f7;color:var(--danger);box-shadow:0 8px 24px #171a2214;font-size:12px;font-weight:700;transform:translate(-50%)}.composer-dialog{width:min(calc(100% - 32px),480px);padding:0;border:0;border-radius:20px;background:var(--surface);color:var(--ink);box-shadow:0 24px 80px #1418233d}.composer-dialog[open]{animation:dialog-in .28s cubic-bezier(.18,.9,.3,1.12)}.composer-dialog::backdrop{background:#12161f6b;backdrop-filter:blur(4px);animation:backdrop-in .2s ease}.dialog-heading{display:flex;align-items:center;justify-content:space-between;padding:20px 22px 16px;border-bottom:1px solid var(--line)}.dialog-heading h2{margin-bottom:0;font-size:20px;line-height:1.2;letter-spacing:-.025em}.close-button{display:grid;width:40px;height:40px;place-items:center;border:0;border-radius:50%;background:#f0f1f4;color:#535967;font-size:25px;line-height:1}.close-button:hover{background:#e6e8ed}.composer-form{padding:20px 22px 22px}.dialog-actions{margin-top:2px}.dialog-actions button{min-width:84px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.is-added{animation:memo-in .4s cubic-bezier(.18,.95,.26,1.18)}.is-updated{animation:memo-update .36s ease}.is-removing{pointer-events:none;animation:memo-out .22s ease forwards}@keyframes memo-in{0%{opacity:0;transform:translateY(-12px) scale(.96)}70%{transform:translateY(2px) scale(1.008)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes memo-update{50%{background:var(--blue-soft)}}@keyframes memo-out{to{opacity:0;transform:translate(-14px)}}@keyframes dialog-in{0%{opacity:0;transform:translateY(14px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes backdrop-in{0%{background:#12161f00;backdrop-filter:blur(0)}}:focus-visible{outline:3px solid rgba(49,94,251,.32);outline-offset:3px}@media(max-width:560px){.topbar{padding-inline:12px}.messages-panel{padding:12px}.message-grid{border-radius:14px}.message-card{gap:7px;min-height:92px;padding:14px 9px 14px 16px}.card-actions{gap:0}.text-button,.delete-button{min-width:48px;padding-inline:7px}.edit-form{grid-template-columns:1fr;padding:4px 7px 5px 0}.edit-actions{justify-content:stretch}.edit-actions button{flex:1}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}