/* ============ 设计 token ============ */
:root{
  --paper:#F2F6F1;
  --card:#FFFFFF;
  --ink:#17332B;
  --pine:#176B55;
  --pine-deep:#0E4A3B;
  --pine-mist:#E4F0E9;
  --line:#D8E5DC;
  --cinnabar:#B5432E;
  --cinnabar-mist:#F9ECE8;
  --gold:#A97B2F;
  --gold-mist:#FAF3E3;
  --muted:#5E7A6D;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","STZhongsong","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --r-s:10px; --r-m:16px; --r-l:22px;
  --shadow:0 6px 24px rgba(23,51,43,.07);
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#101B16; --card:#17251F; --ink:#DCE8E0;
    --pine:#3D9B82; --pine-deep:#5FB89E; --pine-mist:#1E322A;
    --line:#26382F; --muted:#8AA697;
    --cinnabar:#D4694F; --cinnabar-mist:#33201B;
    --gold:#C79A4B; --gold-mist:#2E2718;
    --shadow:0 6px 24px rgba(0,0,0,.35);
  }
}
/* ============ 基础 ============ */
*{box-sizing:border-box}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(23,107,85,.07), transparent 60%),
    var(--paper);
  line-height:1.65;
}
.shell{max-width:720px;margin:0 auto;padding:20px 16px 48px}
h1,h2,h3,.serif{font-family:var(--serif);line-height:1.35}
h1{font-size:30px;margin:8px 0 10px;font-weight:700}
h2{font-size:22px;margin:0 0 12px}
h3{font-size:17px;margin:26px 0 10px}
p{margin:8px 0}
.muted{color:var(--muted);font-size:14px}
a{color:var(--pine)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--pine);outline-offset:2px;border-radius:4px}
/* ============ 头尾 ============ */
header{display:flex;justify-content:space-between;align-items:baseline;padding:2px 2px 14px;border-bottom:1px solid var(--line);margin-bottom:22px}
.brand{font-family:var(--serif);font-weight:700;font-size:19px;letter-spacing:.06em}
.brand b{color:var(--pine)}
.ver{font-size:12px;color:var(--muted)}
footer{margin-top:36px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;text-align:center}
footer .flink{background:none;border:none;color:var(--muted);text-decoration:underline;cursor:pointer;font-size:12.5px;padding:0}
/* ============ 卡片与首页 ============ */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);padding:26px 24px;box-shadow:var(--shadow);margin-bottom:18px}
.hero{position:relative;overflow:hidden}
.hero-mark{position:absolute;top:18px;right:16px;writing-mode:vertical-rl;font-family:var(--serif);font-size:13px;letter-spacing:.5em;color:var(--pine);opacity:.55;border-right:1px solid var(--line);padding-right:8px;height:120px}
.hero h1 b{color:var(--pine)}
.steps-row{display:flex;gap:10px;margin:18px 0 6px}
.step-item{flex:1;background:var(--pine-mist);border-radius:var(--r-m);padding:12px 10px;text-align:center}
.step-item .n{display:inline-flex;width:22px;height:22px;border-radius:50%;background:var(--pine);color:#fff;font-size:12px;align-items:center;justify-content:center;margin-bottom:6px}
.step-item .t{font-size:12.5px;color:var(--ink)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
/* ============ 按钮 ============ */
.btn{border:0;border-radius:14px;padding:13px 22px;background:var(--pine);color:#fff;font-size:15.5px;cursor:pointer;transition:background .15s,transform .06s}
.btn:hover{background:var(--pine-deep)}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:var(--pine-mist);color:var(--pine-deep)}
.btn.secondary:hover{background:var(--line)}
.btn.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}
.btn.danger{background:var(--cinnabar-mist);color:var(--cinnabar)}
.btn.small{padding:8px 14px;font-size:13.5px;border-radius:10px}
.btn:disabled{opacity:.45;cursor:not-allowed}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}
/* ============ 拍摄 ============ */
.progress{display:flex;gap:6px;margin-bottom:16px}
.progress i{height:5px;flex:1;border-radius:6px;background:var(--line)}
.progress i.done{background:var(--pine)}
.progress i.cur{background:var(--pine);opacity:.45}
.cam-wrap{position:relative;background:#0d1512;border-radius:var(--r-m);overflow:hidden;aspect-ratio:3/4;max-height:60vh;margin:0 auto}
.cam-wrap video,.cam-wrap img.preview,.cam-wrap canvas{width:100%;height:100%;object-fit:cover;display:block}
.cam-guide{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.cam-guide .oval{width:62%;aspect-ratio:3/4;border:2px dashed rgba(255,255,255,.75);border-radius:50%}
.cam-guide .hint{position:absolute;bottom:12px;left:0;right:0;text-align:center;color:#fff;font-size:13px;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.cam-fallback{aspect-ratio:auto;background:var(--pine-mist)}
.shot-thumbs{display:flex;gap:8px;margin-top:12px}
.shot-thumbs .th{flex:1;text-align:center;font-size:12px;color:var(--muted)}
.shot-thumbs img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:10px;border:2px solid var(--pine)}
.shot-thumbs .ph{width:100%;aspect-ratio:3/4;border-radius:10px;border:1.5px dashed var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--muted);background:var(--pine-mist);opacity:.6}
.shot-thumbs .th.todo img{border:2px dashed var(--line);opacity:.35}
.pick-row{display:flex;gap:10px;justify-content:center;margin-top:14px;flex-wrap:wrap}
.pick-label{border:1px solid var(--line);border-radius:12px;padding:10px 16px;font-size:13.5px;color:var(--muted);cursor:pointer;background:var(--card)}
.pick-label input{display:none}
/* ============ 问卷 ============ */
.q-group{margin:18px 0;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.q-group:last-of-type{border-bottom:0}
.q-title{font-weight:600;margin-bottom:10px}
.q-title small{color:var(--muted);font-weight:400}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{border:1.5px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13.5px;cursor:pointer;color:var(--ink);background:var(--card);transition:all .12s}
.seg label:has(input:checked){background:var(--pine);border-color:var(--pine);color:#fff}
.seg input{position:absolute;opacity:0;pointer-events:none}
.consent{display:flex;gap:8px;align-items:flex-start;background:var(--pine-mist);border-radius:var(--r-m);padding:14px;margin-top:18px;font-size:13.5px}
.consent input{margin-top:3px}
/* ============ loading ============ */
.loading-box{text-align:center;padding:50px 0}
.pulse{display:inline-flex;gap:10px;margin-bottom:18px}
.pulse i{width:10px;height:10px;border-radius:50%;background:var(--pine);animation:pulse 1.1s infinite ease-in-out}
.pulse i:nth-child(2){animation-delay:.15s}.pulse i:nth-child(3){animation-delay:.3s}
@keyframes pulse{0%,80%,100%{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}
/* ============ 结果 ============ */
.banner{border-radius:var(--r-m);padding:16px 18px;margin-bottom:16px;font-size:14.5px}
.banner.urgent{background:var(--cinnabar-mist);border:1px solid var(--cinnabar);color:var(--cinnabar)}
.banner.soon{background:var(--gold-mist);border:1px solid var(--gold);color:var(--gold)}
.finding{padding:14px 16px;border-left:4px solid var(--pine);background:var(--pine-mist);border-radius:10px;margin:10px 0;font-size:14.5px}
.finding.notice{border-color:var(--gold);background:var(--gold-mist)}
.report-head{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.face-map{width:150px;flex:none}
.legend{font-size:12px;color:var(--muted);margin-top:6px}
.legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin:0 4px 0 10px;vertical-align:middle}
.zone-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}
.zone-card{background:var(--pine-mist);border-radius:var(--r-m);padding:12px 14px}
.zone-card .z-t{font-weight:600;font-size:14px}
.zone-card .z-t small{color:var(--muted);font-weight:400;margin-left:6px}
.zone-card .z-t .tag{float:right;font-size:12px;color:var(--gold)}
.zone-card p{font-size:12.5px;color:var(--muted);margin:4px 0 0;line-height:1.55}
.seals{display:flex;gap:16px;flex-wrap:wrap;margin:8px 0}
.seal{width:104px;height:104px;border-radius:50%;border:2px solid var(--cinnabar);display:flex;align-items:center;justify-content:center;text-align:center;font-family:var(--serif);font-size:17px;color:var(--cinnabar);position:relative;box-shadow:inset 0 0 0 4px var(--card),inset 0 0 0 5.5px var(--cinnabar);transform:rotate(-3deg);padding:8px}
.advice-block{background:var(--pine-mist);border-radius:var(--r-m);padding:14px 16px;margin:10px 0}
.advice-block h4{margin:0 0 8px;font-size:14.5px;font-family:var(--serif)}
.advice-block ul{margin:0;padding-left:18px;font-size:13.5px;line-height:1.8}
.advice-cols{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:560px){.advice-cols{grid-template-columns:1fr}.zone-grid{grid-template-columns:1fr}}
details{margin-top:14px}
summary{cursor:pointer;color:var(--muted);font-size:14px}
.q-item{padding:11px 14px;border-radius:10px;background:var(--pine-mist);margin:8px 0;font-size:13.5px}
/* ============ 历史 ============ */
.hist-item{display:flex;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-m);margin:10px 0;background:var(--card)}
.hist-item .info{flex:1;min-width:0}
.hist-item .info b{font-size:14px}
.hist-item .info div{font-size:12.5px;color:var(--muted)}
/* ============ 弹层 ============ */
.mask{position:fixed;inset:0;background:rgba(10,20,16,.45);display:flex;align-items:flex-end;justify-content:center;z-index:50}
.modal{background:var(--card);width:100%;max-width:560px;border-radius:var(--r-l) var(--r-l) 0 0;padding:24px 22px 34px}
.modal h3{margin-top:0}
.modal textarea{width:100%;min-height:110px;border:1.5px solid var(--line);border-radius:var(--r-m);padding:12px;font:inherit;font-size:14px;background:var(--paper);color:var(--ink);resize:vertical}
.modal input{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;font:inherit;font-size:14px;background:var(--paper);color:var(--ink);margin-top:10px}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 20px;border-radius:999px;font-size:13.5px;z-index:60;opacity:.95}
@media(max-width:600px){
  h1{font-size:25px}
  .card{padding:20px 16px}
  .hero-mark{display:none}
}