/* Layout: 좁은 본문 칼럼 + 관정 단면 그림, 모바일 하단 고정 상담바 */
:root{
  --bg:#f3f6f6; --surface:#ffffff; --fg:#14272b; --muted:#566b70; --line:#d5dfe0;
  --water:#0f6e7a; --water-soft:#dcedef; --signal:#c8641a; --signal-soft:#fbeadb; --on-signal:#ffffff;
  --soil:#b79a6e; --sand:#d9c7a1; --weather:#9a8f84; --rock:#6f7778;
  --display:"Black Han Sans","IBM Plex Sans KR",system-ui,sans-serif;
  --body:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0e1a1d; --surface:#15252a; --fg:#e4eeef; --muted:#97abaf; --line:#28393e;
  --water:#4fb6c3; --water-soft:#183a40; --signal:#e08a45; --signal-soft:#3a2716; --on-signal:#1a0f05;
  --soil:#8a7352; --sand:#a8946e; --weather:#6f665d; --rock:#4c5455; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.7;padding-bottom:calc(76px + env(safe-area-inset-bottom,0px))}
a{color:var(--water)}
img{max-width:100%}
[hidden]{display:none!important}
.wrap{max-width:960px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{text-wrap:balance;line-height:1.3;margin:0}
h2{font-family:var(--display);font-weight:400;font-size:clamp(1.5rem,4vw,1.9rem);letter-spacing:.01em}
h3{font-size:1.05rem}
p{margin:0}
.eyebrow{font-size:.78rem;letter-spacing:.08em;color:var(--water);font-weight:700;margin-bottom:6px}
section{padding-block:44px;border-top:1px solid var(--line)}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}

header.top{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:15}
header.top .wrap{display:flex;align-items:center;gap:8px 20px;padding-block:12px;flex-wrap:wrap}
.brand{font-family:var(--display);font-size:1.2rem;color:var(--fg);text-decoration:none;margin-right:auto}
.nav{display:flex;gap:16px;font-size:.92rem;flex-wrap:wrap}
.nav a{color:var(--fg);text-decoration:none}
.nav a:hover{color:var(--water)}
.toptel{font-family:var(--mono);font-size:.95rem;color:var(--signal);font-weight:500;text-decoration:none}
.crumb{font-size:.82rem;color:var(--muted);padding-top:14px}
.crumb a{color:var(--muted)}

.hero{padding-block:28px 40px;border-top:0;display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:center}
.hero.single{grid-template-columns:1fr}
.hero>*{min-width:0}
.hero h1{font-family:var(--display);font-weight:400;font-size:clamp(2rem,6.5vw,3.3rem);line-height:1.15;margin-block:6px 14px}
.hero h1 em{font-style:normal;color:var(--water)}
.hero .lede{color:var(--muted);max-width:36em}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:6px;font-weight:700;text-decoration:none;border:1px solid transparent;font-size:.95rem;font-family:var(--body);cursor:pointer;line-height:1.3}
.btn:focus-visible,summary:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--water);outline-offset:2px}
.btn.call{background:var(--signal);color:var(--on-signal)}
.btn.sms{background:var(--water);color:var(--surface)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--fg)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}
.tags span{font-size:.8rem;background:var(--water-soft);color:var(--fg);padding:3px 10px;border-radius:99px}

.well{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:14px;margin:0}
.well svg{width:100%;height:auto;display:block}
.well figcaption{font-size:.78rem;color:var(--muted);margin-top:8px}
.l-soil{fill:var(--soil)}.l-sand{fill:var(--sand)}.l-weather{fill:var(--weather)}.l-rock{fill:var(--rock)}
.casing{fill:var(--surface);stroke:var(--fg);stroke-width:1.5}
.pipe{stroke:var(--fg);stroke-width:1}
.pump{fill:var(--signal)}
.axis{stroke:var(--muted)}
.water-line{stroke:var(--water);stroke-width:2;stroke-dasharray:5 4}
.depth text{font-family:var(--mono);font-size:10px;fill:var(--muted);text-anchor:end}
.lbl text{font-family:var(--body);font-size:11px;fill:var(--fg)}
.lbl .wl{fill:var(--water);font-size:10px}

.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px;margin-top:22px}
.facts>*{min-width:0}
.facts h3{margin-bottom:8px}
.facts ul{margin:0;padding-left:1.1em}
.facts li{margin-bottom:6px}
.zones{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:26px}
.zones div{background:var(--surface);padding:14px 16px}
.zones b{display:block;font-size:.95rem}
.zones span{font-size:.86rem;color:var(--muted)}

.svc{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:22px}
.svc article{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:20px;display:flex;flex-direction:column;gap:8px}
.svc ul{margin:0;padding-left:1.1em;color:var(--muted);font-size:.92rem}

.steps{list-style:none;counter-reset:s;margin:22px 0 0;padding:0;display:grid;gap:12px}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:2px 12px;align-items:baseline}
.steps li::before{content:counter(s);grid-row:span 2;font-family:var(--mono);font-size:1.3rem;color:var(--water)}
.steps span{color:var(--muted);font-size:.92rem}

.urgent{background:var(--fg);color:var(--bg);border-top:0}
.urgent h2,.urgent h3{color:var(--bg)}
.urgent .eyebrow{color:var(--signal)}
.urgent .grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.urgent .grid>*{min-width:0}
.urgent ol{margin:12px 0 0;padding-left:1.2em}
.urgent li{margin-bottom:8px}
.urgent p{opacity:.88}

.tablebox{overflow-x:auto;border:1px solid var(--line);border-radius:8px;margin-top:20px}
.price{width:100%;border-collapse:collapse;font-size:.95rem;background:var(--surface);min-width:520px}
.price th,.price td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.price th{font-size:.8rem;color:var(--muted);font-weight:500;letter-spacing:.04em}
.price tr:last-child td{border-bottom:0}
.price .won{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--water);font-weight:500}
.note{font-size:.86rem;color:var(--muted);margin-top:10px}

.helper{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:20px}
.helper>*{min-width:0}
.helper label{display:block;font-size:.85rem;font-weight:700;margin-bottom:4px}
.helper select{width:100%;padding:10px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--fg);font-family:var(--body);font-size:1rem}
.out{background:var(--water-soft);border-radius:8px;padding:16px;white-space:pre-wrap;font-size:.95rem;user-select:all;flex:1}
.copied{font-size:.85rem;color:var(--water)}

.faq{margin-top:12px}
details{border-bottom:1px solid var(--line);padding-block:14px}
summary{font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--water);font-family:var(--mono)}
details[open] summary::after{content:"−"}
details p{margin-top:10px;color:var(--muted);max-width:42em}

.near{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:20px}
.near a{display:block;padding:14px 16px;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--fg);background:var(--surface)}
.near a:hover{border-color:var(--water)}
.near a small{display:block;color:var(--muted);font-size:.82rem}

footer{background:var(--surface);border-top:1px solid var(--line);font-size:.86rem;color:var(--muted)}
footer .wrap{padding-block:32px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.fcol{display:flex;flex-direction:column;gap:4px}
.fcol b{color:var(--fg)}
.flinks{display:flex;flex-wrap:wrap;gap:4px 12px}
.flinks a{color:var(--muted)}
footer small{grid-column:1/-1}

.dock{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);padding-top:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom,0px));z-index:20}
.dock .wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:8px}
.dock .btn{padding:11px 8px;font-size:.92rem}

@media (max-width:720px){
  .hero,.urgent .grid,.helper{grid-template-columns:1fr}
  .nav{order:3;width:100%;font-size:.88rem}
}
@media (prefers-reduced-motion:no-preference){
  .water-line{animation:rise 3s ease-in-out infinite alternate}
  @keyframes rise{from{transform:translateY(4px)}to{transform:translateY(-4px)}}
}
@media (min-width:900px){.dock{display:none}body{padding-bottom:0}}
.cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-top:20px}
.case{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--surface);text-decoration:none;color:var(--fg)}
.case:hover{border-color:var(--water)}
.case small{color:var(--muted);font-size:.82rem}
.case b{font-size:1.02rem;line-height:1.45}
.case .nums{font-size:.88rem;color:var(--muted)}
.case .nums em{font-style:normal;font-family:var(--mono);color:var(--water)}
.case-h1{font-size:clamp(1.7rem,5vw,2.5rem)!important}
.spec{min-width:0}
.spec th{width:28%;font-size:.88rem;color:var(--muted);letter-spacing:0}
.log li::before{content:"";width:12px;height:12px;border-radius:50%;background:var(--signal);margin-top:7px}
.log li{grid-template-columns:24px 1fr}
.prose{display:flex;flex-direction:column;gap:14px;margin-top:16px;max-width:42em}
.tip{background:var(--signal-soft);border-top:0;padding-inline:20px;border-radius:8px;margin-block:12px}
.tip p:last-child{margin-top:10px;max-width:42em}
.ev{font-family:var(--body);font-size:12px;fill:var(--fg)}
.dp{font-family:var(--mono);font-size:10px;fill:var(--muted);text-anchor:end}
.bloglink{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;background:var(--water-soft);border-radius:8px;padding:18px 20px;margin-top:20px}
section.bloglink{border-top:0;margin-block:24px}
.bloglink>div{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1 1 240px}
.bloglink span{font-size:.9rem;color:var(--muted)}
.price td a{color:var(--fg)}
.price th{white-space:nowrap}
h1,h2,h3,p,li,b,small,span,td{word-break:keep-all;overflow-wrap:anywhere}
.stats{display:flex;flex-wrap:wrap;gap:10px 28px;margin:22px 0 0}
.stats div{display:flex;flex-direction:column}
.stats dt{font-size:.78rem;color:var(--muted);letter-spacing:.04em}
.stats dd{margin:0;font-family:var(--mono);font-size:1.4rem;color:var(--water);font-variant-numeric:tabular-nums}