:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-soft: #eef4f1;
  --ink: #1d2a26;
  --ink-soft: #4b5a55;
  --line: #dde3df;
  --brand: #1f6f5c;
  --brand-ink: #ffffff;
  --accent: #d98c3a;
  --radius: 16px;
  --max: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121816;
    --surface: #1a2320;
    --surface-soft: #1f2b27;
    --ink: #e6ece9;
    --ink-soft: #a7b5af;
    --line: #2c3a35;
    --brand: #3fa88b;
    --brand-ink: #0d1412;
    --accent: #e7a45d;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  line-height: 1.75;
  word-break: keep-all;
}
a { color: var(--brand); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 780px; }

/* 상단 */
header.top { border-bottom: 1px solid var(--line); background: var(--surface); }
header.top .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding-top: 14px; padding-bottom: 14px; flex-wrap: wrap;
}
.logo { font-weight: 800; color: var(--ink); text-decoration: none; letter-spacing: -0.02em; }
.logo span { color: var(--brand); }
nav.top-nav { display: flex; gap: 16px; flex-wrap: wrap; font-size: 14px; }
nav.top-nav a { color: var(--ink-soft); text-decoration: none; }
nav.top-nav a:hover { color: var(--brand); }

.crumbs { font-size: 13px; color: var(--ink-soft); padding-top: 14px; }
.crumbs a { color: var(--ink-soft); }

/* 히어로 */
.hero { padding: 48px 0 32px; }
.hero .eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--brand); background: var(--surface-soft);
  padding: 4px 12px; border-radius: 999px;
}
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.3; letter-spacing: -0.03em; margin: 16px 0 12px; }
.hero p.lead { font-size: 18px; color: var(--ink-soft); max-width: 720px; margin: 0; }
.hero .updated { font-size: 13px; color: var(--ink-soft); margin: 12px 0 0; }

/* 섹션 */
section { padding: 32px 0; }
section.tight { padding: 8px 0 16px; }
section h2 { font-size: clamp(22px, 3.4vw, 28px); letter-spacing: -0.02em; margin: 0 0 12px; }
p.sub { color: var(--ink-soft); margin: 0 0 24px; }
.prose { padding: 20px 0; }
.prose p { margin: 0 0 14px; font-size: 17px; }
.about { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.about h2 { font-size: 20px; }
.about p { margin: 0; color: var(--ink-soft); }
.group + .group { margin-top: 40px; }

/* 배너 */
.banner-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(220px, 100%), 1fr)); }
.banner-grid.main { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); margin-bottom: 14px; }
.banner-grid.single { grid-template-columns: 1fr; }
.banner {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  min-height: 132px; padding: 18px 20px; border-radius: var(--radius);
  text-decoration: none; color: #fff; overflow: hidden;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  box-shadow: 0 6px 18px rgba(0,0,0,.08);
  transition: transform .18s ease, box-shadow .18s ease;
}
.banner:hover, .banner:focus-visible { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(0,0,0,.14); }
.banner.main { min-height: 180px; padding: 24px 26px; }
.banner .b-name { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.banner.main .b-name { font-size: 32px; }
.banner .b-tag { font-size: 13px; opacity: .9; }
.banner .b-cta {
  align-self: flex-start; margin-top: 12px; font-size: 13px; font-weight: 700;
  background: rgba(255,255,255,.2); padding: 6px 12px; border-radius: 999px;
}
.banner::after {
  content: ""; position: absolute; right: -30px; top: -30px;
  width: 120px; height: 120px; border-radius: 50%; background: rgba(255,255,255,.12);
}
/* 로고가 있는 배너: 로고들이 투명 배경이라 어두운 바탕에 얹는다 */
.banner.has-img {
  background: radial-gradient(120% 90% at 50% 40%, #262a33, #14161b);
  border: 1px solid rgba(255,255,255,.08); align-items: center;
}
.banner.has-img::after { display: none; }
.banner .b-logo { display: block; margin: auto 0; max-width: 82%; max-height: 64px; object-fit: contain; }
.banner.main .b-logo { max-height: 100px; }
.banner.has-img .b-cta { align-self: center; background: rgba(255,255,255,.12); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 14px; font-size: 14px; }
.chips-label { color: var(--ink-soft); margin-right: 4px; }
.chip {
  border: 1px solid var(--line); background: var(--surface); border-radius: 999px;
  padding: 4px 12px; text-decoration: none; color: var(--ink);
}
.chip:hover { border-color: var(--brand); color: var(--brand); }

/* 카드 */
.cards { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.card .num { font-size: 13px; font-weight: 700; color: var(--accent); }

.link-cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); }
.link-card {
  display: block; background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 18px; text-decoration: none; color: var(--ink);
}
.link-card:hover { border-color: var(--brand); }
.link-card strong { display: block; color: var(--brand); margin-bottom: 4px; }
.link-card span { font-size: 14px; color: var(--ink-soft); }

/* 체크리스트 */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checklist li {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 16px 14px 46px; position: relative;
}
.checklist li::before {
  content: "✓"; position: absolute; left: 16px; top: 13px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--surface-soft); color: var(--brand);
  font-size: 12px; font-weight: 800; display: grid; place-items: center;
}

/* 사이트별 목록 */
.kw-list { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); }
.kw-item {
  display: block; background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; text-decoration: none; color: var(--ink);
}
.kw-item:hover { border-color: var(--brand); }
.kw-item h3 { margin: 0 0 6px; font-size: 17px; }
.kw-item p { margin: 0 0 8px; font-size: 15px; color: var(--ink-soft); }
.kw-item .more { font-size: 14px; font-weight: 700; color: var(--brand); }

/* 자가진단 안내 */
.cta-card {
  display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  background: var(--surface-soft); border-radius: var(--radius); padding: 20px 22px;
}
.cta-card p { margin: 4px 0 0; color: var(--ink-soft); font-size: 15px; }
.btn-outline {
  border: 2px solid var(--brand); color: var(--brand); border-radius: 999px;
  padding: 10px 18px; font-weight: 800; text-decoration: none; white-space: nowrap;
}

/* 도움 */
.help {
  background: var(--brand); color: var(--brand-ink); border-radius: 20px; padding: 32px;
  display: grid; gap: 20px; grid-template-columns: 1.4fr 1fr; align-items: center;
}
.help h2 { color: var(--brand-ink); }
.help p { margin: 0; opacity: .92; }
.help .phone { font-size: 44px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
.help .phone a { color: inherit; text-decoration: none; }
.help .btn {
  display: inline-block; margin-top: 14px; padding: 12px 20px; border-radius: 999px;
  background: var(--brand-ink); color: var(--brand); font-weight: 800; text-decoration: none;
}
@media (max-width: 720px) { .help { grid-template-columns: 1fr; padding: 24px; } }

/* FAQ */
details { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin-bottom: 10px; }
summary { cursor: pointer; font-weight: 700; }
details p { color: var(--ink-soft); margin: 10px 0 0; }

/* 자가진단 */
.selftest .q { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 16px 18px; margin: 0 0 12px; }
.selftest legend { padding: 0; font-weight: 600; float: left; width: 100%; margin-bottom: 10px; }
.selftest .opts { clear: both; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
@media (max-width: 560px) { .selftest .opts { grid-template-columns: repeat(2, 1fr); } }
.selftest label { display: block; cursor: pointer; }
.selftest input { position: absolute; opacity: 0; }
.selftest label span {
  display: block; text-align: center; padding: 10px 6px; border-radius: 10px;
  border: 1px solid var(--line); font-size: 14px;
}
.selftest input:checked + span { background: var(--brand); border-color: var(--brand); color: var(--brand-ink); font-weight: 700; }
.selftest input:focus-visible + span { outline: 2px solid var(--brand); outline-offset: 2px; }
.btn-solid {
  margin-top: 8px; width: 100%; padding: 14px; border: 0; border-radius: 999px; cursor: pointer;
  background: var(--brand); color: var(--brand-ink); font-size: 16px; font-weight: 800; font-family: inherit;
}
.result { margin-top: 20px; background: var(--surface); border: 2px solid var(--brand); border-radius: var(--radius); padding: 22px; }
.result .score { font-size: 14px; color: var(--ink-soft); }
.result h3 { margin: 4px 0 8px; font-size: 22px; }
.result p { margin: 0 0 10px; }
.fine { font-size: 13px; color: var(--ink-soft); margin-top: 16px; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 13px; color: var(--ink-soft); margin-top: 24px; }
footer a { color: var(--ink-soft); }
.footer-cols { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); margin-bottom: 16px; }
.footer-cols h3 { font-size: 14px; color: var(--ink); margin: 0 0 8px; }
.footer-cols ul { list-style: none; padding: 0; margin: 0; columns: 2; }
.footer-cols li { margin-bottom: 4px; }