:root{
  --bg:#f2f4f7;
  --card:#fff;
  --ink:#18202a;
  --ink2:#6b7683;
  --ink3:#9aa4b0;
  --line:#e4e8ee;
  --primary:#0f4c81;
  --primary-2:#14649f;
  --danger:#c62828;
  --warn:#d97706;
  --ok:#2e7d32;
  --shadow:0 1px 2px rgba(16,32,48,.06), 0 4px 12px rgba(16,32,48,.05);
  --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;font-size:inherit}
input,select,textarea{
  font-family:inherit;font-size:15px;color:var(--ink);
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;
  background:#fff;width:100%;outline:none;transition:border-color .15s;
}
input:focus,select:focus,textarea:focus{border-color:var(--primary-2);box-shadow:0 0 0 3px rgba(20,100,159,.08)}
textarea{resize:none}
select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%236b7683' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}

/* 登录 */
.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:24px}
.login-card{background:var(--card);border-radius:18px;padding:32px 24px;width:100%;max-width:340px;box-shadow:var(--shadow);text-align:center}
.login-logo{font-size:24px;font-weight:700;color:var(--primary);letter-spacing:4px;margin-bottom:6px}
.login-sub{color:var(--ink2);margin:0 0 20px;font-size:13px}
.login-card input{margin-bottom:12px;text-align:center}
.btn-primary{background:var(--primary);color:#fff;border-radius:10px;padding:11px 18px;font-weight:600;width:100%;transition:background .15s}
.btn-primary:active{background:var(--primary-2)}
.btn-primary.small{width:auto;padding:8px 18px;font-size:14px}
.err{color:var(--danger);font-size:13px;min-height:18px;margin:8px 0 0}

/* 主体 */
.app{max-width:680px;margin:0 auto;padding-bottom:88px}
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:calc(12px + env(safe-area-inset-top)) 18px 12px;
  background:rgba(242,244,247,.88);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
}
.tb-date{font-size:17px;font-weight:650;letter-spacing:.2px}
.tb-sub{font-size:12px;color:var(--ink2);margin-top:1px}
.icon-btn{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--ink2);background:#fff;box-shadow:var(--shadow)}
.icon-btn:active{background:#eef1f5}

/* 输入区 */
.composer{padding:0 14px 6px}
.composer-box{background:var(--card);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
.composer-box textarea{border:none;padding:2px 2px 6px;font-size:16px;line-height:1.45;background:transparent;min-height:46px}
.composer-box textarea:focus{box-shadow:none}
.composer-actions{display:flex;align-items:center;gap:8px;margin-top:4px}
.src{width:auto;flex:0 0 auto;font-size:13px;padding:7px 30px 7px 10px;border-radius:8px;color:var(--ink2);background-color:#f7f8fa}
.hint{font-size:12px;color:var(--primary-2);margin-top:6px;min-height:0;line-height:1.4}
.hint:empty{display:none}

/* 列表 */
.list{padding:8px 14px 0}
.grp{margin:14px 2px 6px;font-size:12px;font-weight:600;color:var(--ink3);letter-spacing:.6px;display:flex;align-items:center;gap:8px}
.grp::after{content:"";flex:1;height:1px;background:var(--line)}
.item{
  display:flex;gap:11px;background:var(--card);border-radius:12px;padding:13px 13px;
  margin-bottom:8px;box-shadow:0 1px 2px rgba(16,32,48,.04);
  transition:transform .12s ease, opacity .2s;
}
.item:active{transform:scale(.992)}
.item.done-item{opacity:.55}
.chk{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;border:1.8px solid #c9d1da;
  margin-top:1px;display:flex;align-items:center;justify-content:center;transition:all .15s;
}
.chk:active{background:#eef1f5}
.item.is-done .chk{background:var(--ok);border-color:var(--ok)}
.item.is-done .chk::after{content:"";width:10px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translateY(-1px)}
.item-body{flex:1;min-width:0}
.item-title{font-size:15px;line-height:1.35;word-break:break-word}
.item.is-done .item-title{text-decoration:line-through;color:var(--ink3)}
.item-meta{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:5px;font-size:12px;color:var(--ink2)}
.tag{display:inline-block;padding:1px 7px;border-radius:5px;font-size:11px;line-height:1.6;background:#f1f3f6;color:var(--ink2)}
.tag.od{background:#fdecea;color:var(--danger);font-weight:600}
.tag.today{background:#fff4e5;color:var(--warn);font-weight:600}
.tag.p3{background:#fdecea;color:var(--danger)}
.tag.p2{background:#fff4e5;color:var(--warn)}
.due-txt{font-variant-numeric:tabular-nums}
.empty{text-align:center;color:var(--ink3);padding:52px 20px;font-size:14px}
.empty-big{font-size:34px;margin-bottom:10px;opacity:.45}

/* 底部 */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;
  background:rgba(255,255,255,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);
}
.tab{flex:1;padding:12px 0 13px;font-size:13px;color:var(--ink3);font-weight:500;position:relative}
.tab.active{color:var(--primary);font-weight:650}
.tab.active::after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:26px;height:2.5px;background:var(--primary);border-radius:0 0 3px 3px}
.float-add{
  position:fixed;right:18px;bottom:calc(64px + env(safe-area-inset-bottom));z-index:31;
  width:52px;height:52px;border-radius:50%;background:var(--primary);color:#fff;
  font-size:26px;line-height:1;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(15,76,129,.32);
}
.float-add:active{transform:scale(.94)}
.hidefloat .float-add{display:none}

/* 抽屉 */
.sheet-mask{position:fixed;inset:0;z-index:60;background:rgba(16,26,38,.42);display:flex;align-items:flex-end;justify-content:center;animation:fade .18s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.sheet{
  width:100%;max-width:680px;background:var(--bg);border-radius:18px 18px 0 0;
  max-height:92vh;display:flex;flex-direction:column;animation:up .22s cubic-bezier(.3,.9,.3,1);
}
@keyframes up{from{transform:translateY(24px);opacity:.6}to{transform:translateY(0);opacity:1}}
.sheet.full{height:92vh}
.sheet-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-bottom:1px solid var(--line);background:#fff;
  border-radius:18px 18px 0 0;position:sticky;top:0;
}
.sheet-title{font-weight:600;font-size:15px}
.link{color:var(--ink2);font-size:14px;padding:4px 2px}
.link.strong{color:var(--primary);font-weight:600}
.sheet-body{padding:16px;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:calc(28px + env(safe-area-inset-bottom))}
.fld{display:block;margin-bottom:14px}
.fld > span{display:block;font-size:12px;color:var(--ink2);margin-bottom:5px;font-weight:500}
.fld-inline{flex:1;display:block}
.fld-inline span{display:block;font-size:12px;color:var(--ink2);margin-bottom:5px}
.row2{display:flex;gap:8px}
.btn-danger{width:100%;margin-top:8px;padding:11px;border-radius:10px;background:#fdecea;color:var(--danger);font-weight:600;font-size:14px}
.btn-ghost{width:100%;margin:6px 0 4px;padding:11px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--primary);font-weight:600}
.tiny{font-size:12px;color:var(--ink2);line-height:1.55;margin:6px 0 0}
h3{font-size:13px;color:var(--ink3);font-weight:600;margin:22px 0 8px;letter-spacing:.5px}
h3:first-child{margin-top:0}
.card-cfg{background:#fff;border-radius:12px;padding:12px;margin-bottom:10px;display:flex;flex-direction:column;gap:8px}
.sw{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500}
.sw input{width:auto;flex:0 0 auto;transform:scale(1.05);accent-color:var(--primary)}

/* 提示 */
.toast{
  position:fixed;left:50%;bottom:96px;transform:translate(-50%,10px);z-index:90;
  background:rgba(24,32,42,.92);color:#fff;padding:9px 18px;border-radius:20px;font-size:13px;
  opacity:0;pointer-events:none;transition:all .22s ease;max-width:86vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (min-width:700px){
  .app{padding-bottom:24px}
  .tabbar{position:sticky;bottom:0;margin:20px 14px 0;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow);padding-bottom:0}
  .float-add{display:none}
  .sheet{border-radius:18px;margin-bottom:6vh;max-height:86vh}
  .sheet.full{height:auto;max-height:86vh}
  .sheet-head{border-radius:18px 18px 0 0}
  .sheet-mask{align-items:center}
  @keyframes up{from{transform:translateY(12px);opacity:.7}to{transform:translateY(0);opacity:1}}
}

/* ---------- 截图识别 ---------- */
.shot-btn{
  padding:7px 12px;border-radius:8px;background:#eef3f8;color:var(--primary);
  font-size:13px;font-weight:500;white-space:nowrap;transition:background .15s;
}
.shot-btn:active{background:#e0eaf3}
.composer-actions .btn-primary.small{margin-left:auto}

.loading-mask{position:fixed;inset:0;z-index:95;background:rgba(16,26,38,.5);display:flex;align-items:center;justify-content:center}
.loading-box{background:#fff;border-radius:16px;padding:26px 30px;text-align:center;box-shadow:0 8px 30px rgba(0,0,0,.18);min-width:210px}
.spinner{width:28px;height:28px;border:3px solid #e4e8ee;border-top-color:var(--primary);border-radius:50%;margin:0 auto 14px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-box p{font-size:14px;margin:0;color:var(--ink)}

.ocr-item{display:flex;gap:10px;background:#fff;border-radius:12px;padding:12px;margin-bottom:10px}
.ocr-item > input[type=checkbox]{width:18px;height:18px;flex:0 0 18px;margin-top:3px;accent-color:var(--primary)}
.ocr-fields{flex:1;min-width:0;display:flex;flex-direction:column;gap:7px}
.ocr-fields input,.ocr-fields select{font-size:14px;padding:8px 10px}
.ocr-src{font-size:11px;color:var(--ink3);line-height:1.5;border-left:2px solid var(--line);padding-left:8px;word-break:break-word}
.ocr-row{display:flex;gap:7px}
.ocr-row > *{flex:1;min-width:0}