/* 择居 — mobile first (most visitors arrive from WeChat / 小红书). No web fonts: system Chinese fonts only. */
:root{
  --paper:#F7F4EC; --paper2:#EFEADF; --card:#FFFFFF; --ink:#1F2A27; --sub:#4E5A55; --mute:#86908B; --line:#E2DCCF;
  --qing:#2F5D50; --qing-ink:#1E4037; --qing-soft:#E2ECE7; --ochre:#B5623B; --ochre-soft:#F6E6DB; --good:#2F7A55;
  --serif:"Songti SC","STSong","Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC",serif;
  --sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75}
a{color:var(--qing)}
img{max-width:100%;display:block}
.wrap{max-width:1040px;margin:0 auto;padding:0 18px}
.narrow{max-width:620px}
.mute{color:var(--mute);font-size:14px}

/* top bar */
.bar{position:sticky;top:0;z-index:9;background:rgba(247,244,236,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;height:54px;gap:12px}
.brand{font-family:var(--serif);font-size:22px;font-weight:700;letter-spacing:3px;color:var(--ink);text-decoration:none}
.brand b{color:var(--qing)}
.brand .mark{width:1.4em;height:1.4em;vertical-align:-0.32em;margin-right:7px}
.bar .cta-s{font-size:14px;padding:6px 14px;border-radius:999px;background:var(--qing);color:#fff;text-decoration:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:46px;padding:0 22px;border-radius:999px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);font:inherit;font-weight:600;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--qing);border-color:var(--qing);color:#fff}
.btn.primary:active{background:var(--qing-ink)}
.btn[disabled]{opacity:.55;cursor:wait}
.price b{font-size:1.15em}.price s{color:var(--mute);margin-left:4px}.price em{font-style:normal;font-size:12px;background:var(--ochre-soft);color:var(--ochre);border-radius:4px;padding:1px 6px;margin-left:6px;vertical-align:2px}

/* home */
.hero{padding:48px 0 40px}
.hero .wrap{display:grid;gap:36px}
.kicker{font-size:13px;letter-spacing:4px;color:var(--qing);font-weight:700}
.hero h1{font-family:var(--serif);font-size:clamp(30px,7.6vw,50px);line-height:1.3;font-weight:700;margin:12px 0 16px;letter-spacing:1px}
.hero h1 em{font-style:normal;color:var(--qing);border-bottom:3px solid var(--ochre-soft)}
.hero .lead{color:var(--sub);font-size:17px;max-width:32em}
.hero .act{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px;margin-top:26px}
.hero .act .price{font-size:18px}
.hero .fine{font-size:13px;color:var(--mute);margin-top:12px}
.paper{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 18px 14px;box-shadow:0 20px 50px -30px rgba(31,42,39,.45)}
.paper .ph{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1.5px solid var(--ink);padding-bottom:10px;margin-bottom:10px}
.paper .ph h3{font-family:var(--serif);font-size:20px}
.paper .ph p{font-size:12.5px;color:var(--mute)}
.paper .seal{border:2px solid var(--qing);color:var(--qing);border-radius:8px;padding:2px 10px;text-align:center;transform:rotate(-5deg);font-family:var(--serif)}
.paper .seal b{display:block;font-size:24px;line-height:1.1}.paper .seal span{font-size:11px}
.paper ul{list-style:none;font-size:14px}
.paper li{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line)}
.paper li:last-child{border-bottom:0}
.tag{font-size:12px;font-weight:700;border-radius:10px;padding:0 9px;white-space:nowrap;align-self:center}
.tag.good{background:var(--qing-soft);color:var(--good)}.tag.caution{background:var(--ochre-soft);color:var(--ochre)}.tag.neutral{background:var(--paper2);color:var(--sub)}
.paper .demo{font-size:11.5px;color:var(--mute);text-align:right;margin-top:6px}
@media (min-width:860px){.hero{padding:80px 0 64px}.hero .wrap{grid-template-columns:1.1fr .9fr;align-items:center}}

section.band{padding:52px 0;border-top:1px solid var(--line)}
section.band.alt{background:var(--paper2)}
.band h2{font-family:var(--serif);font-size:clamp(24px,5.4vw,32px);line-height:1.35;margin-bottom:8px}
.band .intro{color:var(--sub);margin-bottom:26px;max-width:36em}
.grid{display:grid;gap:14px}
@media (min-width:700px){.grid.c2{grid-template-columns:1fr 1fr}.grid.c3{grid-template-columns:repeat(3,1fr)}.grid.c4{grid-template-columns:repeat(4,1fr)}}
.item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.item .no{font-family:var(--serif);color:var(--qing);font-size:15px;font-weight:700;letter-spacing:2px}
.item h3{font-size:17px;margin:4px 0 6px}
.item p{color:var(--sub);font-size:14.5px}
.steps-h{counter-reset:s;list-style:none;display:grid;gap:12px}
.steps-h li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 16px 16px 58px;position:relative}
.steps-h li::before{content:counter(s);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;background:var(--qing);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.steps-h b{display:block}
.steps-h span{color:var(--sub);font-size:14.5px}
@media (min-width:860px){.steps-h{grid-template-columns:repeat(3,1fr)}}
details.qa{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:10px}
details.qa summary{font-weight:600;cursor:pointer;list-style:none}
details.qa summary::after{content:"＋";float:right;color:var(--mute)}
details.qa[open] summary::after{content:"－"}
details.qa p{color:var(--sub);font-size:14.5px;margin-top:8px}
.cta-band{text-align:center}
.cta-band .btn{margin-top:14px}

/* forms */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;margin:14px 0}
.card h2{font-family:var(--serif);font-size:20px;margin-bottom:8px}
.card.done{border-color:var(--qing);box-shadow:0 0 0 3px var(--qing-soft)}
form.stack{display:grid;gap:14px}
form.stack label{display:grid;gap:5px;font-size:14.5px;font-weight:600}
form.stack label small{font-weight:400;color:var(--mute)}
input,select,textarea{font:inherit;font-weight:400;font-size:16px;width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#FFFDF8;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--qing);outline-offset:0;border-color:var(--qing)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg label{display:inline-flex!important;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-weight:500!important;background:#FFFDF8;cursor:pointer}
.seg input{width:auto}
.seg label:has(input:checked){border-color:var(--qing);background:var(--qing-soft);color:var(--qing-ink)}
.file{position:relative;display:flex!important;align-items:center;justify-content:center;min-height:86px;border:1.5px dashed #C9C1B1;border-radius:12px;background:#FFFDF8;color:var(--sub);font-weight:500!important;cursor:pointer;text-align:center;padding:10px}
.file input{position:absolute;inset:0;opacity:0;cursor:pointer}
.thumbs{display:flex;gap:8px;flex-wrap:wrap}
.thumbs:empty{display:none}
.thumbs figure{position:relative;width:84px;height:84px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.thumbs img{width:100%;height:100%;object-fit:cover}
.thumbs button{position:absolute;top:2px;right:2px;width:22px;height:22px;border-radius:50%;border:0;background:rgba(0,0,0,.6);color:#fff;font-size:14px;line-height:22px;cursor:pointer}
.hint{font-size:13px;color:var(--mute);font-weight:400}
.consent{display:flex!important;grid-template-columns:none!important;align-items:flex-start;gap:8px!important;font-weight:400!important;font-size:13.5px!important;color:var(--sub)}
.consent input{width:auto;margin-top:5px}
.msg{font-size:14px;min-height:1.2em}
.msg.err{color:#A33A1E}
.msg.ok{color:var(--good)}
.field-err{border-color:#C0563A!important;background:#FFF6F2}
.hp{position:absolute;left:-9999px}
.sumbar{position:sticky;bottom:0;background:rgba(247,244,236,.96);border-top:1px solid var(--line);padding:10px 0 calc(10px + env(safe-area-inset-bottom));margin-top:18px}
.sumbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px}

/* order page */
.save{background:#F1EEE6;color:var(--sub);border-left:3px solid #CFC5AE;border-radius:10px;padding:9px 12px;font-size:14px;margin-top:14px}
.steps{display:flex;list-style:none;margin:16px 0 4px;gap:4px}
.steps li{flex:1;text-align:center;font-size:13px;color:var(--mute);border-top:4px solid var(--line);padding-top:6px}
.steps li.done{border-color:var(--qing);color:var(--qing-ink)}
.steps li.now{border-color:var(--ochre);color:var(--ochre);font-weight:700}
.sum dl{display:grid;grid-template-columns:4em 1fr;gap:4px 10px;font-size:15px}
.sum dt{color:var(--mute)}
.qr{width:220px;max-width:70%;margin:12px auto;border-radius:10px;border:1px solid var(--line)}
.warn{background:#F1EEE6;color:var(--sub);border-radius:8px;padding:8px 12px}
.kf{display:flex;align-items:center;gap:14px}
.kf img{width:96px;height:96px;border-radius:8px;border:1px solid var(--line);flex:none}
.kf p{font-size:14px;color:var(--sub)}

/* prose */
.prose h1{font-family:var(--serif);font-size:28px;margin:28px 0 8px}
.prose h2{font-family:var(--serif);font-size:20px;margin:26px 0 6px}
.prose p,.prose li{color:var(--sub);font-size:15px}
.prose ul{padding-left:1.3em;margin:6px 0}

.foot{border-top:1px solid var(--line);padding:26px 0 calc(30px + env(safe-area-inset-bottom));margin-top:30px;font-size:14px;color:var(--sub)}
.foot p{margin:2px 0}
.foot b{font-family:var(--serif);letter-spacing:2px}
.refmsg{display:block;font-size:13px;margin-top:2px}.refmsg.err{color:#A33A1E}.refmsg.ok{color:var(--good)}
.myorders{background:var(--qing-soft);font-size:14px}
.myorders .wrap{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding-top:7px;padding-bottom:7px}
.myorders a{color:var(--qing);text-decoration:underline}
.linkbtn{font:inherit;color:var(--qing);background:none;border:0;padding:0;text-decoration:underline;cursor:pointer}
/* 下单页：卫星图选楼 */
.btn.ghost{background:var(--card);border:1px dashed var(--qing);color:var(--qing);width:100%;font-weight:600}
.btn.ghost small{font-weight:400;color:var(--mute)}
.picker .hint{font-size:13px;color:var(--sub);margin:4px 0 6px}
.pmap{position:relative;height:320px;overflow:hidden;border-radius:10px;border:1px solid var(--line);background:#3d4a44;touch-action:none;cursor:crosshair;user-select:none}
.pmap .ptiles{position:absolute;left:0;top:0;width:1280px;height:1280px;will-change:transform}
.pmap .ptiles img{position:absolute;width:256px;height:256px;max-width:none;pointer-events:none}
.pmap .pin{position:absolute;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;border:3px solid #fff;background:#E2442F;box-shadow:0 0 0 2px #E2442F,0 2px 6px rgba(0,0,0,.5);pointer-events:none}
.pmap .pnorth{position:absolute;right:8px;top:6px;background:rgba(255,255,255,.85);border-radius:4px;padding:0 6px;font-size:12px;font-weight:700;color:var(--sub)}
.pcap{font-size:11.5px;color:var(--mute);margin-top:2px}
.btn.ghost{display:block;text-align:center;white-space:normal;line-height:1.5;padding:10px 12px}

body{overflow-wrap:anywhere}
.ming{display:grid;grid-template-columns:3em 1fr 5.5em;gap:8px;align-items:center}
.ming .who{color:var(--sub);font-size:14px}

/* sample reports */
.samples{display:grid;gap:14px;margin-top:18px}
@media(min-width:760px){.samples{grid-template-columns:repeat(3,1fr)}}
.sample{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;color:var(--ink);text-decoration:none}
.sample:hover{border-color:var(--qing)}
.sample .sh{display:flex;justify-content:space-between;gap:10px;border-bottom:1.5px solid var(--ink);padding-bottom:8px;margin-bottom:8px}
.sample .tier{font-size:12.5px;color:var(--qing);font-weight:700;letter-spacing:1px}
.sample h3{font-family:var(--serif);font-size:19px;line-height:1.35}
.sample .seal{border:2px solid var(--qing);color:var(--qing);border-radius:8px;padding:2px 8px;text-align:center;font-family:var(--serif);align-self:flex-start;white-space:nowrap}
.sample .seal b{display:block;font-size:22px;line-height:1.1}.sample .seal span{font-size:10.5px}
.sample ul{list-style:none;font-size:14px;color:var(--sub)}
.sample li{padding:3px 0;border-bottom:1px dashed var(--line)}.sample li:last-child{border-bottom:0}
.sample .go{margin-top:8px;font-size:14px;color:var(--qing);font-weight:600}