:root {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --ink: #18222d;
  --ink-2: #4a5866;
  --ink-3: #7b8794;
  --line: #e1e6eb;
  --brand: #2f5d8a;
  --brand-ink: #ffffff;
  --brand-soft: #e8f0f7;
  --ok: #2f7a5b;
  --ok-soft: #eaf5ef;
  --warn: #9a5b13;
  --warn-soft: #fbf3e6;
  --radius: 10px;
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.7; word-break: keep-all; }
a { color: var(--brand); }
img { max-width: 100%; }
h1, h2, h3 { line-height: 1.3; letter-spacing: -0.02em; }
.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.preview-bar { background: #18222d; color: #f6c35b; font-size: 13px; text-align: center; padding: 6px 16px; }

/* header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); }
.brand-name { font-weight: 700; }
.brand-logo { display: block; height: 30px; width: auto; }
.brand-tag { font-size: 13px; color: var(--ink-3); padding-left: 8px; border-left: 1px solid var(--line); }
.header-nav { display: flex; align-items: center; gap: 4px 18px; flex-wrap: wrap; font-size: 15px; }
.header-nav a:not(.btn) { color: var(--ink-2); text-decoration: none; }
.header-nav a:not(.btn):hover { color: var(--brand); }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 20px; border-radius: 8px; background: var(--brand); color: var(--brand-ink); font-weight: 600; text-decoration: none; border: 1px solid var(--brand); }
.btn:hover { filter: brightness(1.08); }
.btn-sm { min-height: 36px; padding: 0 14px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--brand); }

/* breadcrumb */
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; padding: 14px 0 0; margin: 0 auto; font-size: 13px; color: var(--ink-3); }
.breadcrumb li + li::before { content: "›"; margin-right: 4px; }
.breadcrumb a { color: var(--ink-3); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand); }

/* hero */
.hero { padding: 56px 0 40px; }
.eyebrow { margin: 0 0 8px; color: var(--brand); font-weight: 600; font-size: 14px; }
.hero h1 { font-size: clamp(28px, 5vw, 40px); margin: 0 0 16px; }
.lead { font-size: 17px; color: var(--ink-2); max-width: 680px; margin: 0; }

/* index */
.category { margin-bottom: 40px; scroll-margin-top: 80px; }
.category h2, .principles h2, .related h2 { font-size: 20px; margin: 0 0 16px; }
.card-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card a { display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 22px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); text-decoration: none; transition: border-color .15s, box-shadow .15s; }
.card a:hover { border-color: var(--brand); box-shadow: 0 4px 16px rgba(47, 93, 138, .08); }
.card-title { font-size: 18px; font-weight: 700; }
.card-alt { font-size: 13px; color: var(--ink-3); }
.card-body { font-size: 15px; color: var(--ink-2); }
.card-meta { margin-top: auto; padding-top: 8px; font-size: 12px; color: var(--ink-3); }
.card-grid-sm .card a { padding: 16px 18px; }
.card-grid-sm .card-title { font-size: 16px; }

.subjects { margin-bottom: 48px; scroll-margin-top: 80px; }
.subjects h2 { font-size: 20px; margin: 0 0 16px; }
.subject-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.subject { position: relative; display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; scroll-margin-top: 80px; transition: border-color .15s, box-shadow .15s; }
.subject:hover, .subject:target { border-color: var(--brand); box-shadow: 0 4px 16px rgba(47, 93, 138, .08); }
.subject-num { margin: 0; font-size: 12px; font-weight: 700; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.subject-name { font-size: 18px; margin: 4px 0 4px; }
.subject-desc { margin: 0 0 14px; font-size: 14px; color: var(--ink-2); }
.subject-procs { list-style: none; padding: 12px 0 0; margin: auto 0 0; border-top: 1px solid var(--line); }
.subject-procs a { display: flex; justify-content: space-between; gap: 8px; font-size: 15px; font-weight: 600; text-decoration: none; padding: 2px 0; }
.subject-procs a::after { content: "→"; color: var(--ink-3); }
.subject-procs a:hover::after { color: var(--brand); }
/* 카드 전체를 클릭 영역으로: 과목당 시술이 1개일 때 */
.subject-procs li:only-child a::before { content: ""; position: absolute; inset: 0; }

.principles { margin-bottom: 56px; }
.home-faq { margin-bottom: 48px; scroll-margin-top: 80px; }
.home-faq h2 { font-size: 20px; margin: 0 0 16px; }
.home-faq-more { margin: 14px 0 0; font-size: 14px; color: var(--ink-3); }
.principle-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.principle-list li { background: var(--brand-soft); border-radius: var(--radius); padding: 18px 20px; color: var(--ink-2); font-size: 15px; }
.principle-list strong { display: block; color: var(--brand); margin-bottom: 4px; }

/* region accordion (main page) */
.region-nav { margin-bottom: 56px; scroll-margin-top: 80px; }
.region-nav-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px 16px; flex-wrap: wrap; margin-bottom: 14px; }
.region-nav-head h2 { font-size: 20px; margin: 0; }
.region-nav-head p { margin: 0; font-size: 14px; color: var(--ink-3); }
.region-group { margin-bottom: 28px; }
.region-group-title { display: flex; align-items: center; gap: 8px; font-size: 16px; margin: 0 0 10px; }
.region-group-title { flex-wrap: wrap; }
.region-nav-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; margin: 0 0 16px; font-size: 14px; color: var(--ink-2); }
.region-hub-link { margin-left: auto; font-size: 14px; font-weight: 600; color: var(--brand); text-decoration: none; }
.region-hub-link::after { content: " →"; }
.region-group-title span { font-size: 12px; font-weight: 600; color: var(--brand); background: var(--brand-soft); padding: 1px 8px; border-radius: 99px; }
.region-gu { margin-bottom: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.region-gu[open] { border-color: var(--brand); }
.region-gu > summary { display: flex; align-items: center; cursor: pointer; list-style: none; min-height: 56px; padding: 0 48px 0 18px; position: relative; }
.region-gu > summary::-webkit-details-marker { display: none; }
.region-gu > summary::after { content: ""; position: absolute; right: 20px; top: 50%; width: 8px; height: 8px; border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3); transform: translateY(-70%) rotate(45deg); transition: transform .15s; }
.region-gu[open] > summary::after { transform: translateY(-30%) rotate(-135deg); border-color: var(--brand); }
.region-gu > summary .region-group-title { margin: 0; }
.region-gu > summary:hover .region-group-title, .region-gu[open] > summary .region-group-title { color: var(--brand); }
.region-gu-panel { padding: 0 14px 14px; }
.region-gu-panel .region-acc { background: var(--bg); }
.region-acc-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; align-items: start; }

.region-acc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.region-acc[open] { border-color: var(--brand); box-shadow: 0 4px 16px rgba(47, 93, 138, .08); }
.region-acc summary { display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; min-height: 50px; padding: 0 44px 0 16px; position: relative; font-weight: 600; }
.region-acc summary::-webkit-details-marker { display: none; }
.region-acc summary::after { content: ""; position: absolute; right: 18px; top: 50%; width: 7px; height: 7px; border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3); transform: translateY(-70%) rotate(45deg); transition: transform .15s; }
.region-acc[open] summary::after { transform: translateY(-30%) rotate(-135deg); border-color: var(--brand); }
.region-acc summary:hover .region-acc-name, .region-acc[open] .region-acc-name { color: var(--brand); }
.region-acc-count { font-size: 12px; font-weight: 500; color: var(--ink-3); }
.region-acc-panel { padding: 0 16px 16px; }
.region-acc-link { display: flex; align-items: center; justify-content: space-between; min-height: 42px; padding: 0 14px; border-radius: 8px; background: var(--brand); color: #fff; font-size: 14px; font-weight: 600; text-decoration: none; }
.region-acc-link::after { content: "→"; }
.region-acc-link:hover { filter: brightness(1.1); }
.region-hub { display: flex; align-items: center; justify-content: space-between; min-height: 50px; padding: 0 16px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); color: var(--ink); font-weight: 600; text-decoration: none; }
.region-hub::after { content: "→"; color: var(--ink-3); }
.region-hub:hover, .region-hub[aria-current="page"] { border-color: var(--brand); color: var(--brand); }
.region-hub:hover::after, .region-hub[aria-current="page"]::after { color: var(--brand); }
.region-acc-dest { margin: 6px 0 0; font-size: 12px; color: var(--ink-3); }
.region-acc-dest span { font-family: ui-monospace, Consolas, monospace; color: var(--ink-2); word-break: break-all; }
.dong-list { list-style: none; margin: 12px 0 0; padding: 12px 0 0; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 4px 6px; }
.dong-list li { font-size: 13px; color: var(--ink-2); background: var(--bg); padding: 2px 8px; border-radius: 6px; }

.region-acc.is-pending { display: flex; align-items: center; justify-content: space-between; min-height: 50px; padding: 0 16px; border-style: dashed; color: var(--ink-3); background: transparent; }
.region-acc.is-pending small { font-size: 11px; }

/* article */
.article { padding-bottom: 56px; }
.article-head { padding: 28px 0 24px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.chip { display: inline-block; font-size: 13px; padding: 2px 10px; border-radius: 99px; background: var(--brand-soft); color: var(--brand); text-decoration: none; font-weight: 600; }
.article-head h1 { font-size: clamp(28px, 5vw, 38px); margin: 12px 0 12px; }
.article-head h1 { margin-bottom: 4px; }
.article-head .alt { font-size: 15px; font-weight: 500; color: var(--ink-3); margin: 0 0 12px; }
.review-meta { margin: 16px 0 0; font-size: 13px; color: var(--ink-3); }

/* 시술 이미지: 제목 옆 (넓은 화면) / 제목 아래 (좁은 화면) */
.article-head.with-figure { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; align-items: center; }
.head-figure { margin: 0; aspect-ratio: 1 / 1; border-radius: 16px; overflow: hidden; background: #eef2f5; }
.head-figure img { display: block; width: 100%; height: 100%; object-fit: cover; }
.head-figure.is-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 16px; border: 2px dashed #b9cbdd; background: repeating-linear-gradient(-45deg, var(--brand-soft) 0 14px, #f1f6fa 14px 28px); color: var(--ink-2); }
.ph-title { font-size: 18px; font-weight: 700; color: var(--brand); }
.head-figure code { font-size: 12px; background: var(--surface); padding: 2px 8px; border-radius: 6px; word-break: break-all; }
.ph-note { font-size: 12px; color: var(--ink-3); }

/* 원내 사진 */
.gallery-section { margin-bottom: 48px; }
.gallery-section .section-title { font-size: 20px; margin: 0 0 16px; }
.gallery { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.gallery li.is-wide { grid-column: span 2; grid-row: span 2; }
.gallery figure { margin: 0; position: relative; height: 100%; border-radius: var(--radius); overflow: hidden; background: #eef2f5; }
.gallery img { display: block; width: 100%; height: 100%; aspect-ratio: 1200 / 660; object-fit: cover; }
.gallery figcaption { position: absolute; left: 10px; bottom: 10px; font-size: 12px; font-weight: 600; color: #fff; background: rgba(24, 34, 45, .55); padding: 3px 10px; border-radius: 99px; }

.article-layout { display: grid; grid-template-columns: minmax(0, 1fr); align-items: start; }

.article-body { max-width: 720px; }
.article-body section { margin-bottom: 44px; scroll-margin-top: 80px; }
.article-body h2 { font-size: 22px; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.article-body h3 { font-size: 16px; margin: 0 0 10px; }
.article-body ul { padding-left: 20px; }
.article-body li { margin-bottom: 6px; }
.note { font-size: 14px; color: var(--ink-2); background: var(--surface); border-left: 3px solid var(--brand); padding: 10px 14px; border-radius: 0 6px 6px 0; }

.spec-list { margin: 0; display: grid; gap: 10px; }
.spec-list div { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 18px; }
.spec-list dt, .spec-list h3 { font-size: 16px; font-weight: 700; margin: 0; }
.spec-list dd, .spec-list p { margin: 4px 0 0; color: var(--ink-2); font-size: 15px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.panel { border-radius: var(--radius); padding: 18px 20px; }
.panel ul { margin: 0; padding-left: 18px; font-size: 15px; }
.panel-ok { background: var(--ok-soft); }
.panel-ok h3 { color: var(--ok); }
.panel-warn { background: var(--warn-soft); }
.panel-warn h3 { color: var(--warn); }

.steps { list-style: none; padding: 0; margin: 0 0 16px; counter-reset: step; }
.steps li { counter-increment: step; position: relative; padding: 0 0 18px 48px; }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; }
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 15px; top: 34px; bottom: 2px; width: 2px; background: var(--line); }
.steps strong, .steps h3 { display: block; font-size: 16px; margin: 0; line-height: 1.7; }
.steps span { color: var(--ink-2); font-size: 15px; }

.check-list { list-style: none; padding: 0 !important; }
.check-list li { padding-left: 26px; position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--ok); font-weight: 700; }

.faq { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 16px 44px 16px 18px; font-weight: 600; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq-q { display: inline; margin: 0; font: inherit; letter-spacing: inherit; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 20px; color: var(--ink-3); }
.faq[open] summary::after { content: "−"; }
.faq p { margin: 0; padding: 0 18px 16px; color: var(--ink-2); font-size: 15px; }

.cta { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; background: var(--ink); color: #fff; border-radius: 14px; padding: 24px 28px; }
.cta p { margin: 0; font-size: 14px; color: #c3ccd5; }
.cta a:not(.btn) { color: #fff; }
.cta-title { font-size: 18px !important; font-weight: 700; color: #fff !important; margin-bottom: 4px !important; }
.cta-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cta + #local { margin-top: 44px; }
.cta .btn-ghost { color: #fff; border-color: #5a6b7c; }

/* footer (기관 정보: data/clinic.json) */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 40px 0 28px; font-size: 14px; color: var(--ink-2); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 32px; }
.footer-logo { display: inline-block; margin-bottom: 14px; color: var(--ink); font-weight: 700; text-decoration: none; }
.footer-logo img { display: block; height: 40px; width: auto; }
.footer-info { margin: 0; display: grid; gap: 4px; }
.footer-info div { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 8px; }
.footer-info dt { color: var(--ink-3); }
.footer-info dd { margin: 0; color: var(--ink-2); word-break: keep-all; }
.footer-info a { color: var(--ink-2); text-decoration: none; }
.footer-info a:hover { color: var(--brand); }
.footer-head { margin: 0 0 8px; font-weight: 700; color: var(--ink); }
.footer-hours table { border-collapse: collapse; }
.footer-hours th { text-align: left; font-weight: 600; padding: 2px 16px 2px 0; color: var(--ink-2); }
.footer-hours td { padding: 2px 0; }
.footer-note { margin: 8px 0 0; font-size: 13px; color: var(--ink-3); }
.footer-legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-3); }
.footer-legal p { margin: 2px 0; }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-bottom: 8px !important; }
.footer-legal-links a { color: var(--ink-2); font-weight: 600; text-decoration: none; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } .footer-info div { grid-template-columns: 84px minmax(0, 1fr); } }

@media (max-width: 960px) {
  .subject-grid, .region-acc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .region-acc-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .article-head.with-figure { grid-template-columns: 1fr; gap: 20px; }
  .head-figure { max-width: 420px; }
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .two-col { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand-tag { display: none; }
  .header-nav { font-size: 14px; gap: 4px 12px; padding-bottom: 10px; }
  .hero { padding: 36px 0 28px; }
  .cta { padding: 20px; }
}