/* 메인 페이지 전용 스타일 (B4). 공통 변수·헤더·푸터는 site.css, 여기 값이 메인에서 우선 */
/* B4 집안단면형 — 막힘 해결의 선생님 포지셔닝 */
:root{--blue:#1F4E9E;--blue-l:#E8EEF8;--navy:#1B2433;--red:#D7261E;--gray:#F3F4F6;--line:#E3E5E9;--mute:#626873;
  --f:"Pretendard Variable",Pretendard,system-ui,sans-serif;--wrap:1200px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--f);color:var(--navy);line-height:1.65;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{display:block;width:100%;height:100%;object-fit:cover;background:#cfd3da}
:focus-visible{outline:3px solid var(--red);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.h2{font-weight:900;font-size:clamp(28px,3vw,38px);letter-spacing:-.04em;line-height:1.3}
.lead{color:var(--mute);font-size:16.5px;margin-top:8px;max-width:34em}

/* header */
.hd{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.hd .wrap{height:70px;display:flex;align-items:center;gap:40px}
.logo{display:flex;align-items:center;gap:9px;font-weight:900;font-size:21px;letter-spacing:-.04em;white-space:nowrap}
.logo .mark{width:34px;height:34px;flex:none;display:block}
.logo b{color:var(--blue)}
.logo span{line-height:1.1}
.nav{display:flex;gap:28px;font-weight:600;font-size:15.5px;margin-right:auto}
.nav a:hover{color:var(--blue)}
.hd-tel{white-space:nowrap;display:flex;align-items:center;gap:10px;font-weight:900;font-size:21px;letter-spacing:-.02em}
.hd-tel span{font-size:12px;font-weight:800;color:#fff;background:var(--red);padding:4px 8px;border-radius:4px;letter-spacing:0}

/* hero */
.hero{padding:52px 0 0}
.hero-top{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px;flex-wrap:wrap}
.hero h1{font-weight:900;font-size:clamp(34px,4.2vw,54px);letter-spacing:-.045em;line-height:1.2}
.hero .tag{display:inline-block;font-size:15px;font-weight:800;color:var(--blue);margin-bottom:10px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero-top p{color:var(--mute);font-size:16.5px;max-width:25em}
.stage{display:grid;grid-template-columns:3fr 2fr;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.draw{position:relative;padding:48px 18px 18px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
.draw svg{display:block;width:100%;height:auto}
.hint{position:absolute;left:28px;top:22px;font-size:13px;font-weight:700;color:var(--mute)}
.hs{cursor:pointer}
.hs circle.dot{fill:var(--red);stroke:#fff;stroke-width:3}
.hs circle.ring{fill:none;stroke:var(--red);stroke-width:2;opacity:0;transform-box:fill-box;transform-origin:center;animation:ring 2s infinite}
.hs text{font:800 15px var(--f);fill:var(--navy);paint-order:stroke;stroke:#fff;stroke-width:5px}
.hs.on circle.dot{fill:var(--blue)}.hs.on text{fill:var(--blue)}
.hs:focus{outline:none}.hs:focus-visible{outline:none}.hs:focus-visible circle.dot{stroke:var(--navy);stroke-width:4}
@keyframes ring{0%{opacity:.8;transform:scale(1)}100%{opacity:0;transform:scale(2.4)}}
.chips{display:none}

.panel{display:flex;flex-direction:column}
.panel .ph{position:relative;height:150px;overflow:hidden}
.panel .ph.noimg{background:var(--blue-l) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 90'%3E%3Cg fill='%23fff' stroke='%231B2433' stroke-width='2.5' stroke-linejoin='round'%3E%3Crect x='2' y='2' width='56' height='70' rx='6'/%3E%3Crect x='12' y='12' width='36' height='14' rx='3' fill='%23E8EEF8'/%3E%3Ccircle cx='30' cy='48' r='9' fill='%23E8EEF8'/%3E%3Cpath d='M16 72v16M30 72v16M44 72v16' fill='none'/%3E%3C/g%3E%3C/svg%3E") center 38%/auto 84px no-repeat}
.panel .ph span:empty{display:none}
.panel .ph span{position:absolute;left:0;bottom:0;background:rgba(27,36,51,.82);color:#fff;font-size:13px;padding:7px 12px}
.panel .bd{padding:20px 26px 24px;display:flex;flex-direction:column;flex:1}
.panel .kind{font-size:13px;font-weight:800;color:var(--blue)}
.panel h2{font-size:25px;font-weight:900;letter-spacing:-.035em;margin:2px 0 12px}
.panel h3{font-size:13.5px;font-weight:800;margin:10px 0 6px}
.panel ul{list-style:none;font-size:15px}
.panel li{padding-left:20px;position:relative;margin:3px 0}
.panel .cause li::before{content:"";position:absolute;left:4px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--navy)}
.panel .dont h3{color:var(--red)}
.panel .dont li::before{content:"✕";position:absolute;left:1px;top:0;font-weight:900;color:var(--red);font-size:13px}
.panel .dont li small{display:block;color:var(--mute);font-size:13.5px}
.panel .call{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--red);color:#fff;border-radius:6px;padding:15px 20px;font-weight:900}
.panel .call span{font-size:15px}
.panel .call strong{font-size:22px;letter-spacing:-.01em;white-space:nowrap}
.panel .call:hover{background:#B91E17}
.swap{animation:sw .3s ease}@keyframes sw{from{opacity:.2}}

.trust{display:grid;grid-template-columns:repeat(4,1fr);margin-top:0;border:1px solid var(--line);border-top:0;border-radius:0 0 8px 8px;background:var(--gray)}
.trust div{padding:18px 22px;border-right:1px solid var(--line)}
.trust div:last-child{border-right:0}
.trust b{display:block;font-size:16px;font-weight:800}
.trust span{font-size:14px;color:var(--mute)}
.stage{border-radius:8px 8px 0 0}

/* knowhow */
.know{background:var(--gray);padding:96px 0;margin-top:96px}
.fork{display:grid;grid-template-columns:180px 1fr 1fr;gap:0;margin-top:40px;align-items:stretch}
.fork .start{display:flex;align-items:center;justify-content:center;text-align:center;background:var(--navy);color:#fff;font-weight:900;font-size:19px;line-height:1.35;padding:20px;border-radius:8px 0 0 8px}
.path{background:#fff;padding:30px 30px 26px;border:1px solid var(--line);display:flex;flex-direction:column}
.path.bad{border-right:0}
.path.good{border:2px solid var(--blue);border-radius:0 8px 8px 0}
.path h3{font-size:20px;font-weight:900;letter-spacing:-.03em;margin-bottom:14px}
.path.bad h3{color:var(--mute)}.path.good h3{color:var(--blue)}
.path ol{list-style:none;counter-reset:s;flex:1}
.path li{counter-increment:s;position:relative;padding:0 0 14px 34px;font-size:16px}
.path li::before{content:counter(s);position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:50%;font-size:12.5px;font-weight:800;display:grid;place-items:center;background:var(--gray);color:var(--mute)}
.path.good li::before{background:var(--blue);color:#fff}
.path li:not(:last-child)::after{content:"";position:absolute;left:10.5px;top:26px;bottom:2px;width:1px;background:var(--line)}
.path .res{margin-top:6px;padding-top:16px;border-top:1px solid var(--line);font-weight:900;font-size:17px}
.path.bad .res{color:var(--red)}.path.good .res{color:var(--blue)}
.know .foot{margin-top:22px;font-size:15.5px;color:#3C424C}

/* teacher */
.teacher{background:var(--navy);color:#fff;padding:96px 0}
.teacher-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.teacher .kicker{font-size:15px;font-weight:800;color:#FFD84D}
.teacher h2{font-weight:900;font-size:clamp(34px,4vw,52px);letter-spacing:-.045em;line-height:1.2;margin:10px 0 18px}
.teacher p.lead{color:#B4BCCB;font-size:17px}
.relay h3{font-size:22px;font-weight:900;letter-spacing:-.03em;margin-bottom:6px}
.relay > p{color:#B4BCCB;font-size:16px}
.relay ol{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);margin-top:26px;border-top:1px solid #34405A}
.relay li{padding:18px 16px 0 0;position:relative;font-size:15px;color:#B4BCCB}
.relay li b{display:block;color:#fff;font-size:16.5px;margin-bottom:4px}
.relay li::before{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;background:#5B6882}
.relay li.us::before{background:#FFD84D;width:13px;height:13px;top:-7px}
.relay li.us b{color:#FFD84D}
.relay li.x b{text-decoration:line-through;text-decoration-color:var(--red);text-decoration-thickness:2px}
.teach{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#34405A;border:1px solid #34405A}
.teach div{background:var(--navy);padding:22px 22px}
.teach b{display:block;font-size:17px;margin-bottom:4px}
.teach span{color:#B4BCCB;font-size:14.5px}

/* photos */
.photos{padding:96px 0}
.sec-h{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}
.sec-h > a{white-space:nowrap;font-weight:800;border-bottom:2px solid var(--navy)}
.grid{display:grid;grid-template-columns:2fr 1fr 1fr;grid-template-rows:230px 230px;gap:12px}
.grid a{position:relative;overflow:hidden;border-radius:4px}
.grid a:first-child{grid-row:span 2}
.grid a span{position:absolute;left:0;right:0;bottom:0;padding:28px 14px 12px;color:#fff;font-size:14px;font-weight:700;background:linear-gradient(transparent,rgba(0,0,0,.72))}
.grid img{transition:transform .35s}.grid a:hover img{transform:scale(1.04)}
.note{margin-top:18px;font-size:15px;color:var(--mute)}
.note b{color:var(--navy)}

/* services */
.svc{background:var(--gray);padding:96px 0}
.svc-list{margin-top:36px;border-top:2px solid var(--navy)}
.svc-item{display:grid;grid-template-columns:220px 1fr 1fr;gap:32px;padding:28px 0;border-bottom:1px solid #D8DBE0;align-items:start}
.svc-item h3{font-size:24px;font-weight:900;letter-spacing:-.03em}
.svc-item h3 small{display:block;font-size:13px;font-weight:800;color:var(--red);letter-spacing:0;margin-bottom:2px}
.svc-item dt{font-size:13px;font-weight:800;color:var(--mute);margin-bottom:4px}
.svc-item dd{font-size:16px}

/* area */
.area{padding:96px 0}
.area-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;margin-top:36px}
.map{background:var(--blue-l);border-radius:8px;padding:20px;position:relative}
.map svg{display:block;width:100%;height:auto}
.map small{position:absolute;right:14px;bottom:10px;font-size:12px;color:var(--mute)}
.zones h3{font-size:22px;font-weight:900;letter-spacing:-.03em;margin-bottom:10px}
.zones h3 span{color:var(--blue)}
.gu{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:15px;color:#3C424C;padding-bottom:26px;margin-bottom:26px;border-bottom:1px solid var(--line)}
.cities{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.cities div{border:1.5px solid var(--blue);border-radius:6px;padding:14px;text-align:center;font-weight:800;font-size:17px;color:var(--blue)}
.zones p.q{margin-top:22px;font-size:15px;color:var(--mute)}
.zones p.q a{color:var(--red);font-weight:800}

/* why */
.why{background:var(--gray);padding:96px 0}
.why-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);margin-top:40px;border:1px solid var(--line)}
.why-list div{background:#fff;padding:30px 28px}
.why-list b{display:block;font-size:19px;font-weight:800;margin-bottom:8px}
.why-list p{color:#3C424C;font-size:15.5px}

/* faq */
.faq{padding:96px 0}
.faq-list{margin-top:32px;border-top:2px solid var(--navy)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 40px 22px 0;font-size:18px;font-weight:800;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-size:26px;font-weight:400;color:var(--mute)}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 24px;color:#3C424C;font-size:16px;max-width:52em}

/* final cta */
.end{background:var(--red);color:#fff}
.end .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-top:48px;padding-bottom:48px;flex-wrap:wrap}
.end p{font-size:clamp(22px,2.4vw,30px);font-weight:900;letter-spacing:-.035em;line-height:1.35}
.end p small{display:block;font-size:16px;font-weight:600;opacity:.9;letter-spacing:0}
.end a{background:#fff;color:var(--red);font-weight:900;font-size:24px;padding:16px 28px;border-radius:6px;white-space:nowrap}

.ft{padding:36px 0 120px;font-size:13.5px;color:var(--mute)}
.ft b{color:var(--navy)}.ft .links{display:flex;gap:16px;margin-bottom:10px;font-weight:600}

.fab{position:fixed;right:24px;bottom:24px;z-index:50;display:flex;flex-direction:column;gap:8px}
.fab a{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px;line-height:1.15;text-align:center;box-shadow:0 6px 16px rgba(0,0,0,.18)}
.fab .c{background:var(--red)}.fab .s{background:var(--blue)}
.dock{display:none}

@media (max-width:960px){
  .nav{display:none}.hd .wrap{height:62px;justify-content:space-between}.hd-tel{font-size:16px}.hd-tel span{display:none}
  .hero{padding-top:32px}
  .stage{grid-template-columns:1fr}.draw{border-right:0;border-bottom:1px solid var(--line);padding:8px}
  .hint{position:static;display:block;padding:6px 8px 0}
  .chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 8px 12px}
  .chips button{border:1px solid var(--line);border-radius:4px;padding:8px 12px;font-weight:700;font-size:14px}
  .chips button[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
  .panel .bd{padding:18px 20px 22px}
  .panel .call span{display:none}
  .sec-h{flex-direction:column;align-items:flex-start}
  .trust{grid-template-columns:1fr 1fr}.trust div:nth-child(2){border-right:0}.trust div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .photos,.svc,.area,.why,.faq{padding:64px 0}
  .grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}.grid a{height:180px}.grid a:first-child{grid-column:span 2;grid-row:auto;height:240px}
  .grid a:nth-child(n+6){display:none}
  .svc-item{grid-template-columns:1fr;gap:10px}
  .area-grid{grid-template-columns:1fr;gap:28px}
  .cities{grid-template-columns:1fr 1fr}
  .why-list{grid-template-columns:1fr}
  .know{margin-top:64px;padding:64px 0}.teacher{padding:64px 0}
  .fork{grid-template-columns:1fr}.fork .start{border-radius:8px 8px 0 0}
  .path.bad{border-right:1px solid var(--line);border-bottom:0}.path.good{border-radius:0 0 8px 8px}
  .teacher-grid{grid-template-columns:1fr;gap:40px}
  .relay ol{grid-template-columns:1fr 1fr;row-gap:22px}
  .teach{grid-template-columns:1fr}
  .fab{display:none}
  .dock{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:50;background:#fff;border-top:1px solid var(--line);padding:8px 10px calc(8px + env(safe-area-inset-bottom));gap:8px}
  .dock a{flex:1;text-align:center;padding:14px;border-radius:6px;font-weight:800;font-size:16px}
  .dock .c{flex:2.4;background:var(--red);color:#fff}.dock .s{border:1px solid var(--line)}
}
@media (prefers-reduced-motion:reduce){.hs circle.ring{animation:none}.swap{animation:none}.grid img{transition:none}html{scroll-behavior:auto}}
/* 공통 레이아웃과의 차이 보정: 메인의 빨간 띠는 위 여백 없음 */
.end{margin-top:0}