:root{
  --bg:#fff; --text:#111; --muted:#6b7280; --line:#e5e7eb; --card:#f6f7f9;
  --accent:#1a73e8; --op:#f59e0b; --shadow:0 10px 28px rgba(0,0,0,.10);
  --font: system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--font);overscroll-behavior-y:none;}
.topbar{position:sticky;top:0;z-index:40;display:flex;gap:10px;align-items:center;padding:10px;border-bottom:1px solid var(--line);background:#fff}
.topbar input{flex:1;padding:12px 14px;border-radius:16px;border:1px solid var(--line);font-size:16px;outline:none;background:#f3f4f6}
.topbar button{padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:var(--accent);color:#fff;font-weight:900}

.home{padding:16px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:18px;font-weight:900;font-size:18px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.tile:active{transform:scale(.99)}

.screen{position:fixed;inset:0;background:#fff;display:none;flex-direction:column;z-index:50}
.screen.active{display:flex}

.appbar{height:56px;display:flex;align-items:center;gap:10px;padding:0 12px;border-bottom:1px solid var(--line);background:#fff}
.apptitle{flex:1;font-weight:900;font-size:18px}
.appactions{display:flex;gap:6px}
.iconbtn{border:none;background:transparent;font-size:20px;line-height:1;padding:8px;border-radius:12px}
.iconbtn:active{background:rgba(0,0,0,.06)}

.searchwrap{padding:12px}
.searchbox{display:flex;align-items:center;gap:10px;background:#f1f3f4;border-radius:28px;padding:12px 16px}
.searchbox input{flex:1;border:none;outline:none;background:transparent;font-size:16px}
.searchicon{opacity:.7}

.list{flex:1;overflow:auto;-webkit-overflow-scrolling:touch}
.c-item{display:flex;align-items:center;gap:14px;padding:14px 16px}
.c-item:active{background:rgba(0,0,0,.05)}
.c-avatar{width:44px;height:44px;border-radius:22px;display:grid;place-items:center;font-weight:900;color:#fff;font-size:16px}
.c-text{flex:1;min-width:0}
.c-name{font-weight:900;font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.c-num{font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.c-right{font-size:18px;opacity:.85}

.sheetback{position:fixed;inset:0;background:rgba(0,0,0,.22);z-index:80}
.sheet{position:fixed;left:14px;right:14px;bottom:14px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:8px;z-index:90}
.sheetitem{padding:14px 14px;border-radius:16px;font-weight:800}
.sheetitem:active{background:rgba(0,0,0,.06)}
.sheetsep{height:1px;background:var(--line);margin:6px 10px}

.detail{flex:1;display:flex;flex-direction:column;align-items:center;gap:14px;padding:22px 18px}
.avatarbig{width:110px;height:110px;border-radius:55px;display:grid;place-items:center;font-weight:900;font-size:44px;color:#fff}
.dname{font-weight:900;font-size:24px;text-align:center}
.dnum{font-weight:800;font-size:18px;background:#f1f3f4;border-radius:18px;padding:12px 14px}

.d-actions{display:flex;gap:12px;margin-top:4px}
.da{width:72px;display:flex;flex-direction:column;align-items:center;gap:6px}
.da-icon{width:56px;height:56px;border-radius:28px;background:#f1f3f4;display:grid;place-items:center;font-size:22px}
.da-text{font-size:12px;color:var(--muted);font-weight:800}

.d-list{width:100%;max-width:360px;margin-top:6px}
.dl{display:flex;align-items:center;gap:12px;padding:12px 8px;border-top:1px solid var(--line)}
.dl:first-child{border-top:none}
.dl-icon{width:26px;text-align:center}
.dl-text{font-weight:800}

.calc{height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:12px}
.calc-display{text-align:right;font-size:58px;font-weight:900;padding:18px 10px;min-height:96px}
.calc-pad{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding-bottom:16px}
.key{border-radius:18px;border:1px solid var(--line);background:#f5f5f7;font-size:28px;font-weight:900;padding:22px 0;text-align:center;user-select:none}
.key.top{background:#e9eaee}
.key.op{background:rgba(245,158,11,.18);border-color:rgba(245,158,11,.25);color:#92400e}
.key.eq{background:var(--accent);border-color:var(--accent);color:#fff}
.key.wide{grid-column:span 2;text-align:left;padding-left:28px}
.key:active{transform:scale(.99)}
.calcback{position:absolute;top:10px;left:8px}

.note-bar{height:56px;display:flex;align-items:center;gap:8px;padding:0 10px;border-bottom:1px solid var(--line)}
.note-btn{border:none;background:transparent;font-weight:900;font-size:16px;padding:10px 10px;border-radius:14px}
.note-btn:active{background:rgba(0,0,0,.06)}
.note-btn.done{color:#111}
.note-spacer{flex:1}
.note-meta{padding:14px 16px 6px 16px}
.note-title{font-size:22px;font-weight:900;color:#8a8a8f;outline:none}
.note-title:empty:before{content:attr(data-ph);color:#b0b0b6}
.note-time{margin-top:6px;color:#a0a0a6;font-size:12px}
.note-body{flex:1;padding:0 16px 18px 16px}
.note-body textarea{width:100%;height:100%;resize:none;border:none;outline:none;font-size:22px;line-height:1.5;padding:6px 0;background:transparent}

.piwrap{padding:16px;display:flex;gap:10px}
.piwrap input{flex:1;padding:14px 16px;border-radius:18px;border:1px solid var(--line);font-size:18px;outline:none;background:#f5f5f7}

.snack{position:fixed;left:14px;right:14px;bottom:14px;background:#111;color:#fff;padding:12px 14px;border-radius:14px;display:none;z-index:200;font-weight:900}
.snack.show{display:block}