:root{
  --mint:#3dbfa3; --mint-dark:#2ea88e; --mint-light:#e3f6f1; --mint-bg:#f4faf8;
  --ink:#2d3a37; --sub:#7c8a86; --red:#e05a4e; --red-bg:#fdecea;
  --yellow:#d99b1f; --yellow-bg:#fdf5e3; --green:#3a9e5f; --green-bg:#e8f6ec;
  --card:#ffffff; --line:#e5efec; --radius:16px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{touch-action:manipulation}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--mint-bg);color:var(--ink);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-webkit-touch-callout:none;
  -webkit-user-select:none;user-select:none;min-height:100vh}
.app{max-width:520px;margin:0 auto;min-height:100vh;padding-bottom:76px}

/* 通用排版 */
h2.sec{font-size:17px;margin:22px 0 10px;display:flex;align-items:center}
h2.sec .bar{width:4px;height:16px;border-radius:2px;background:var(--mint);margin-right:7px;flex:none}
.card{background:var(--card);border-radius:var(--radius);padding:16px;margin-bottom:12px;
  box-shadow:0 1px 4px rgba(46,120,105,.06)}
.sub{color:var(--sub);font-size:13px}

/* 间距基线：margin 为基线，flex gap 为增强（.supports-flex-gap 由 JS 行为检测添加） */
.row{display:flex;flex-wrap:wrap}
.row>*{margin-right:10px;margin-bottom:10px;min-width:0}
.row>*:last-child{margin-right:0}
.supports-flex-gap .row{column-gap:10px;row-gap:10px}
.supports-flex-gap .row>*{margin-right:0;margin-bottom:0}

.grid2{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px}
.pill{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;font-weight:600}

/* header */
header{background:#3dbfa3;background:linear-gradient(135deg,#3dbfa3,#2b9d87);color:#fff;padding:18px 20px 18px;
  padding-top:100px;
  padding-top:calc(72px + var(--safe-area-inset-top,env(safe-area-inset-top,28px)));
  border-radius:0 0 24px 24px}
header .hello{font-size:13px;opacity:.85}
header .big{font-size:22px;font-weight:700;margin-top:2px}
header .stats{display:flex;margin-top:12px;font-size:12px}
header .stats>div{margin-right:18px}
header .stats>div:last-child{margin-right:0}
.supports-flex-gap header .stats{gap:18px}
.supports-flex-gap header .stats>div{margin-right:0}
header .stats b{display:block;font-size:19px;font-weight:700}

/* tabs */
nav{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;
  background:#fff;border-top:1px solid var(--line);display:flex;z-index:50;
  padding-bottom:0;padding-bottom:var(--safe-area-inset-bottom,env(safe-area-inset-bottom,0px))}
nav button{flex:1;border:none;background:none;padding:9px 0 7px;font-size:11px;color:var(--sub);
  display:flex;flex-direction:column;align-items:center;cursor:pointer;font-family:inherit}
nav button .ico{font-size:20px;line-height:1;margin-bottom:2px}
nav button.on{color:var(--mint-dark);font-weight:600}
nav button:active{opacity:.7}
.page{display:none;padding:14px 14px 0}
.page.on{display:block}

/* checklist */
.check{display:flex;align-items:center;padding:13px 4px;border-bottom:1px solid var(--line);cursor:pointer}
.check:last-child{border-bottom:none}
.check .box{width:24px;height:24px;border-radius:8px;border:2px solid #cfe5df;flex:none;
  margin-right:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px}
.check.done .box{background:var(--mint);border-color:var(--mint)}
.check.done .box::after{content:"\2713";font-weight:700}
.check .t{flex:1;min-width:0}
.check .t small{display:block;color:var(--sub);font-size:12px}
.check.done .t{opacity:.55;text-decoration:line-through}
.check:active{opacity:.7}

/* progress / stats */
.bar{height:8px;border-radius:4px;background:var(--mint-light);overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;background:var(--mint);border-radius:4px;width:0}
.stat{text-align:center;padding:12px 6px;background:var(--mint-light);border-radius:12px}
.stat b{font-size:20px;color:var(--mint-dark)}
.stat span{display:block;font-size:12px;color:var(--sub)}

/* form */
label.fl{display:block;font-size:13px;color:var(--sub);margin:10px 0 4px}
input[type=number],input[type=text],select,textarea{width:100%;padding:10px 12px;border:1.5px solid var(--line);
  border-radius:10px;font-size:15px;background:#fbfefd;color:var(--ink);font-family:inherit;
  -webkit-user-select:text;user-select:text;-webkit-appearance:none;appearance:none}
textarea{resize:vertical;min-height:52px}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--mint)}
.btn{display:inline-block;background:var(--mint);color:#fff;border:none;border-radius:12px;
  padding:11px 20px;font-size:15px;font-weight:600;cursor:pointer;font-family:inherit}
.btn:active{opacity:.75}
.btn.ghost{background:none;color:var(--mint-dark);border:1.5px solid var(--mint)}
.btn.sm{padding:6px 14px;font-size:13px;border-radius:9px}
.btn.full{width:100%}

.ok{background:var(--green-bg);color:var(--green)}
.warn{background:var(--yellow-bg);color:var(--yellow)}
.bad{background:var(--red-bg);color:var(--red)}
.kv{display:flex;justify-content:space-between;padding:9px 2px;border-bottom:1px solid var(--line);font-size:14px}
.kv:last-child{border-bottom:none}
.kv b{font-variant-numeric:tabular-nums;text-align:right}

/* hunger scale */
.hscale{display:flex;margin-top:8px}
.hscale button{flex:1;padding:0;height:46px;border-radius:10px;border:1.5px solid var(--line);
  background:#fff;font-size:15px;font-weight:700;color:var(--sub);cursor:pointer;font-family:inherit;
  margin-right:5px;min-width:0;display:flex;align-items:center;justify-content:center}
.hscale button:last-child{margin-right:0}
.supports-flex-gap .hscale{gap:5px}
.supports-flex-gap .hscale button{margin-right:0}
.hscale button.sel{background:var(--mint);border-color:var(--mint);color:#fff}
.hlabels{display:flex;justify-content:space-between;font-size:11px;color:var(--sub);margin-top:5px}

/* snacks */
.snack{display:flex;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--line)}
.snack:last-child{border-bottom:none}
.snack .dot{width:10px;height:10px;border-radius:50%;flex:none;margin-top:7px;margin-right:10px}
.search{margin-bottom:8px}
.taglist{display:flex;flex-wrap:wrap;margin-top:6px}
.tag{padding:4px 12px;border-radius:20px;font-size:13px;background:#f2f7f5;color:var(--ink);
  margin-right:7px;margin-bottom:7px}
.supports-flex-gap .taglist{gap:7px}
.supports-flex-gap .tag{margin-right:0;margin-bottom:0}

.steps .step,.step{display:flex;font-size:14px;margin-top:8px}
.step .n{width:22px;height:22px;flex:none;border-radius:50%;background:var(--mint-light);
  color:var(--mint-dark);font-weight:700;font-size:12px;display:flex;align-items:center;justify-content:center;
  margin-top:2px;margin-right:10px}
.step .txt{flex:1;min-width:0}

/* plate */
.plate{display:grid;grid-template-columns:1fr 1fr;grid-gap:4px;width:150px;height:150px;
  border-radius:50%;overflow:hidden;margin:10px auto;border:4px solid #d8ece6}
@supports (aspect-ratio:1/1){.plate{height:auto;aspect-ratio:1/1}}
.plate div{display:flex;align-items:center;justify-content:center;font-size:11px;color:#fff;text-align:center;padding:4px;line-height:1.3}

/* fasting */
.month{border:1.5px solid var(--line);border-radius:14px;padding:12px;margin-bottom:10px}
.month.cur{border-color:var(--mint);background:var(--mint-light)}
.month h4{font-size:14px;display:flex;justify-content:space-between;align-items:center}
.month .act{display:flex;align-items:center;margin-top:8px}
.month .act b{font-size:18px;color:var(--mint-dark)}
.month .act .sub{margin-left:6px}
.month .act .btn{margin-left:auto}

/* weight */
#chart{width:100%;height:180px;display:block}
.wl{display:flex;justify-content:space-between;font-size:13px;padding:8px 2px;border-bottom:1px solid var(--line)}
.wl span{color:var(--sub)}

/* cycle */
.cycle{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:8px;font-size:11px;text-align:center}
.cycle div{background:#fdf1f3;border-radius:10px;padding:8px 4px;color:#b0556a;line-height:1.4}
.cycle b{display:block;font-size:12px;margin-bottom:2px}

details{background:#fff;border-radius:12px;border:1.5px solid var(--line);margin-bottom:10px;overflow:hidden}
summary{padding:13px 15px;font-weight:600;font-size:14px;cursor:pointer;list-style:none;display:flex;
  justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary .arw{color:var(--sub);font-size:16px}
details .body{padding:0 15px 14px;font-size:14px}

.tip{background:var(--mint-light);border-radius:12px;padding:11px 14px;font-size:13px;color:#1f7a67;margin:10px 0}
.empty{text-align:center;color:var(--sub);padding:26px 10px;font-size:13px}
.hidden{display:none}

/* 饮食拍照 */
.ph-drop{border:2px dashed #bfe0d8;border-radius:14px;background:#f7fcfb;text-align:center;
  padding:22px 10px;cursor:pointer}
.ph-drop:active{background:#eef9f6}
.ph-drop .ph-ico{font-size:28px;color:var(--mint);line-height:1}
.ph-drop .sub{margin-top:4px}
.ph-preview{display:block;width:100%;max-height:260px;object-fit:cover;border-radius:12px;margin-top:10px}
.chips{display:flex;flex-wrap:wrap;margin-top:6px}
.chip{padding:6px 14px;border-radius:20px;border:1.5px solid var(--line);background:#fff;
  color:var(--sub);font-size:13px;font-family:inherit;cursor:pointer;margin-right:8px;margin-bottom:8px}
.supports-flex-gap .chips{gap:8px}
.supports-flex-gap .chip{margin-right:0;margin-bottom:0}
.chip.on{background:var(--mint);border-color:var(--mint);color:#fff;font-weight:600}
.chip:active{opacity:.7}
.pitem{display:flex;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.pitem:last-child{border-bottom:none}
.pitem img{width:54px;height:54px;border-radius:10px;object-fit:cover;flex:none;margin-right:12px;
  background:#eef6f3;cursor:pointer}
.pitem .t{flex:1;min-width:0}
.pitem .t b{font-size:14px}
.pitem .t small{display:block;color:var(--sub);font-size:12px;line-height:1.5}
.pitem .del{border:none;background:none;color:var(--red);font-size:18px;padding:0 4px;
  cursor:pointer;font-family:inherit;flex:none}

/* 大图查看 */
#viewer{position:fixed;left:0;top:0;right:0;bottom:0;background:rgba(0,0,0,.88);z-index:80;
  display:flex;align-items:center;justify-content:center;padding:20px}
#viewer img{max-width:100%;max-height:100%;border-radius:8px}
#viewer .close{position:absolute;right:16px;top:calc(16px + var(--safe-area-inset-top,env(safe-area-inset-top,0px)));
  border:none;background:none;color:#fff;font-size:30px;cursor:pointer;font-family:inherit}