:root{
  --h: 32;
  --ink:    hsl(var(--h) 20% 13%);
  --paper:  hsl(var(--h) 30% 98%);
  --surface:hsl(var(--h) 55% 95%);
  --line:   hsl(var(--h) 18% 84%);
  --accent: hsl(var(--h) 88% 50%);
  --accent-ink: hsl(0 0% 100%);
  --mute:   hsl(var(--h) 10% 44%);
}
*,*::before,*::after{ box-sizing:border-box; }
html,body{ max-width:100%; overflow-x:hidden; }
img,video,svg,table,pre{ max-width:100%; }
body{
  margin:0; word-break:keep-all; overflow-wrap:break-word;
  background:var(--paper); color:var(--ink);
  font-family:"Pretendard",-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:17px; line-height:1.75;
}
.co-wrap{ width:100%; max-width:1180px; margin-inline:auto; padding-inline:16px; }
@media (min-width:768px){ .co-wrap{ padding-inline:32px; } }
h1,h2,h3{ line-height:1.3; margin:0 0 .5em; }
h1{ font-size:clamp(26px,5.6vw,44px); }
h2{ font-size:clamp(21px,3.6vw,28px); }
h3{ font-size:clamp(17px,2.4vw,20px); }
a{ color:inherit; }

.co-hdr{ position:sticky; top:0; z-index:20; height:64px; display:flex; align-items:center; background:hsl(0 0% 100%); border-bottom:3px solid var(--accent); }
.co-hdr .co-wrap{ display:flex; align-items:center; justify-content:space-between; width:100%; }
.co-logo{ font-weight:800; font-size:18px; text-decoration:none; color:var(--ink); }
.co-nav{ display:flex; gap:16px; list-style:none; margin:0; padding:0; }
.co-nav a{ text-decoration:none; font-size:14px; color:var(--mute); }
@media (max-width:420px){ .co-hdr{ height:56px; } .co-nav li:nth-child(n+3){ display:none; } }

.co-hero{ background:var(--surface); padding:40px 0; }
.co-hero-grid{ display:grid; grid-template-columns:1fr; gap:24px; align-items:center; }
.co-hero-media{ aspect-ratio:5/4; border-radius:16px; overflow:hidden; background:hsl(var(--h) 30% 82%); }
.co-hero-media img{ width:100%; height:100%; object-fit:cover; display:block; }
.co-sub{ margin:0 0 12px; font-size:15px; letter-spacing:.08em; color:var(--accent); font-weight:700; }
.co-lead{ font-size:17px; color:var(--mute); max-width:60ch; margin:0 0 22px; }
.co-cta{ display:flex; flex-wrap:wrap; gap:12px; }
.co-cta a{ display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:0 22px; border-radius:10px; font-weight:700; text-decoration:none; font-size:15px; }
.co-cta-call{ background:var(--accent); color:var(--accent-ink); }
.co-cta-book{ background:transparent; color:var(--ink); border:1px solid var(--ink); }
@media (min-width:768px){ .co-hero-grid{ grid-template-columns:1fr 1fr; } }

.co-body{ padding:40px 0; display:grid; grid-template-columns:1fr; gap:32px; }
.co-index{ display:flex; overflow-x:auto; gap:10px; padding-bottom:8px; list-style:none; margin:0; }
.co-index a{ white-space:nowrap; padding:8px 14px; border-radius:999px; background:var(--surface); text-decoration:none; font-size:14px; color:var(--ink); }
.co-content section{ padding:22px 0; border-top:1px solid var(--line); }
.co-content section:first-child{ border-top:none; padding-top:0; }
.co-content figure{ margin:14px 0; border-radius:12px; overflow:hidden; background:var(--line); aspect-ratio:16/9; }
.co-content img{ width:100%; height:100%; object-fit:cover; display:block; }
@media (min-width:900px){
  .co-body{ grid-template-columns:220px 1fr; }
  .co-index{ position:sticky; top:80px; flex-direction:column; align-self:start; overflow:visible; }
}

.co-bio{ padding:32px 16px; text-align:center; background:var(--surface); }
.co-bio img{ width:120px; height:120px; border-radius:999px; object-fit:cover; margin:0 auto 12px; display:block; }
.co-bio p{ max-width:60ch; margin:0 auto 12px; color:var(--mute); }
.co-bio a{ font-weight:700; color:var(--accent); text-decoration:none; }

.co-faq-item{ border-bottom:1px solid var(--line); padding:16px 0; }
.co-faq-q{
  font-weight:700; margin:0; cursor:pointer; list-style:none;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
}
.co-faq-q::-webkit-details-marker{ display:none; }
.co-faq-q::after{ content:"+"; flex:0 0 auto; font-size:20px; font-weight:400; color:var(--accent); }
.co-faq-item[open] .co-faq-q::after{ content:"\2212"; }
.co-faq-a{ margin:12px 0 0; color:var(--mute); }

.co-related ul{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:10px; }
.co-related a{ display:inline-block; padding:10px 16px; border-radius:10px; background:var(--surface); text-decoration:none; font-size:14px; color:var(--ink); }

.co-ctaband{ padding:36px 16px; text-align:center; background:hsl(var(--h) 88% 48%); color:hsl(0 0% 100%); }
.co-ctaband p{ margin:0 0 16px; font-size:19px; font-weight:700; }
.co-ctaband-btns{ display:flex; justify-content:center; gap:12px; flex-wrap:wrap; }
.co-ctaband-btns a{ min-height:44px; display:inline-flex; align-items:center; padding:0 22px; border-radius:10px; text-decoration:none; font-weight:700; }
.co-ctaband-btns a:first-child{ background:var(--accent); color:var(--accent-ink); }
.co-ctaband-btns a:last-child{ background:transparent; color:hsl(0 0% 98%); border:1px solid hsl(0 0% 60%); }

@media (prefers-reduced-motion:reduce){ *{ animation:none !important; transition:none !important; } }

.ft{ padding:14px 16px; background:hsl(var(--h) 14% 16%); }
.ft-line{ display:flex; flex-wrap:wrap; justify-content:center; gap:6px 14px; margin:0; font-size:12px; line-height:1.5; color:hsl(0 0% 78%); }
.ft-line span{ white-space:nowrap; }
.ft-line span:not(:last-child)::after{ content:"|"; margin-left:14px; color:hsl(0 0% 42%); }
@media (max-width:420px){ .ft-line{ font-size:11px; gap:4px 10px; } .ft-line span:nth-child(4){ white-space:normal; } }