:root {
  --navy:#0B2A45; --navy-deep:#071C30; --navy-up:#123A5E;
  --mist:#E6EEF4; --paper:#F7F9FB; --ink:#14212D; --muted:#4C5966;
  --on-navy:#F2F6F9; --on-navy-muted:#B7C7D6;
  --sky:#5CC2F0;   /* 네이비 위 포인트 */
  --teal:#0E6E8C;  /* 밝은 바탕 위 포인트 글자 */
  --line:rgba(11,42,69,.12); --line-dark:rgba(255,255,255,.16);
  --serif:"Noto Serif KR","Nanum Myeongjo",serif;
  --sans:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  --latin:"Playfair Display","Times New Roman",serif;
  --wrap:1160px; --pad-x:clamp(16px,5vw,56px); --pad-y:clamp(64px,8vw,112px);
  --bar-h:64px;
}
* { box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:84px; -webkit-text-size-adjust:100%; }
body { margin:0; background:var(--paper); color:var(--ink); font:400 16px/1.75 var(--sans); word-break:keep-all; overflow-wrap:break-word; -webkit-font-smoothing:antialiased; padding-bottom:var(--bar-h); }
img { max-width:100%; display:block; }
a { color:inherit; }
h1,h2,h3 { font-family:var(--serif); font-weight:300; letter-spacing:-.02em; line-height:1.3; margin:0; }
h2 { font-size:clamp(28px,3.8vw,46px); }
h3 { font-size:clamp(18px,1.6vw,21px); font-weight:500; }
p { margin:0; }
.wrap { width:min(var(--wrap),100%); margin:0 auto; }
.eyebrow { font:italic 500 clamp(14px,1.2vw,17px)/1.3 var(--latin); letter-spacing:.1em; color:var(--teal); margin-bottom:12px; }
.dark .eyebrow, .deep .eyebrow, .hero .eyebrow { color:var(--sky); }
.hero .lead, .hero .note, .deep .lead { color:var(--on-navy-muted); }
.lead { color:var(--muted); font-size:clamp(16px,1.2vw,18px); max-width:640px; margin-top:16px; }
.dark .lead { color:var(--on-navy-muted); }
.note { color:var(--muted); font-size:13px; margin-top:14px; }
.dark .note { color:var(--on-navy-muted); }
section { padding:var(--pad-y) var(--pad-x); }
.dark { background:var(--navy); color:var(--on-navy); }
.deep { background:var(--navy-deep); color:var(--on-navy); }
.mist { background:var(--mist); }
.head { margin-bottom:40px; }
.head h2 span { display:block; }

.btn { display:inline-flex; align-items:center; gap:8px; min-height:50px; padding:0 24px; border-radius:999px; text-decoration:none; font-weight:500; border:1px solid currentColor; transition:transform .2s, background .2s; }
.btn:hover { transform:translateY(-1px); }
.btn.sky { background:var(--sky); border-color:var(--sky); color:var(--navy-deep); }
.btn.ghost { color:var(--on-navy); border-color:rgba(255,255,255,.45); }
.btn.navy { background:var(--navy); border-color:var(--navy); color:var(--on-navy); }

/* 상단 내비 */
.nav { position:fixed; z-index:40; top:12px; left:50%; transform:translateX(-50%); width:min(var(--wrap), calc(100% - 24px)); display:flex; align-items:center; justify-content:space-between; gap:12px; padding:8px 8px 8px 16px; border-radius:999px; background:rgba(7,28,48,.82); backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px); color:var(--on-navy); border:1px solid var(--line-dark); }
.brand { display:flex; align-items:center; gap:10px; text-decoration:none; font-weight:700; white-space:nowrap; }
.brand img { width:34px; height:34px; border-radius:50%; }
.nav ul { list-style:none; display:flex; gap:4px; margin:0; padding:0; }
.nav ul a { display:block; padding:8px 14px; border-radius:999px; text-decoration:none; font-size:15px; color:var(--on-navy-muted); }
.nav ul a:hover { background:rgba(255,255,255,.08); color:var(--on-navy); }
.nav .call { background:var(--sky); color:var(--navy-deep); padding:8px 16px; border-radius:999px; text-decoration:none; font-weight:700; font-size:15px; white-space:nowrap; }
@media (max-width:900px) { .nav ul { display:none; } }

/* 히어로 */
.hero { padding-top:clamp(120px,14vw,170px); background:radial-gradient(ellipse at 80% 10%, var(--navy-up), var(--navy-deep) 60%); color:var(--on-navy); }
.hero .grid { display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(28px,5vw,64px); align-items:center; }
.hero h1 { font-size:clamp(34px,5.4vw,64px); }
.hero h1 em { font-style:normal; color:var(--sky); }
.stats { display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.stat { border:1px solid var(--line-dark); background:rgba(255,255,255,.05); border-radius:18px; padding:14px 18px; min-width:150px; }
.stat b { display:block; font:500 clamp(26px,3vw,36px)/1.1 var(--serif); color:var(--sky); }
.stat span { font-size:14px; color:var(--on-navy-muted); }
.hero .cta { display:flex; flex-wrap:wrap; gap:10px; margin-top:32px; }
.hero figure { margin:0; position:relative; }
.hero figure img { border-radius:28px; width:100%; aspect-ratio:4/5; object-fit:cover; object-position:center 30%; }
.hero figcaption { position:absolute; left:16px; bottom:16px; background:rgba(7,28,48,.78); padding:8px 14px; border-radius:999px; font-size:13px; color:var(--on-navy); }
@media (max-width:900px) { .hero .grid { grid-template-columns:1fr; } .hero figure img { aspect-ratio:1/1; object-position:center 65%; } }

/* 신뢰 카드 */
.trust { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.tcard { background:#fff; border:1px solid var(--line); border-radius:22px; padding:24px; }
.tcard .n { font:italic 500 15px var(--latin); color:var(--teal); }
.tcard h3 { margin:8px 0 6px; }
.tcard p { color:var(--muted); font-size:15px; }
.gallery { display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:16px; margin-top:24px; }
.gallery figure { margin:0; background:#fff; border:1px solid var(--line); border-radius:22px; overflow:hidden; }
.gallery img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.gallery figcaption { padding:12px 16px; font-size:14px; color:var(--muted); }
@media (max-width:900px) { .trust { grid-template-columns:1fr 1fr; } .gallery { grid-template-columns:1fr; } }
@media (max-width:520px) { .trust { grid-template-columns:1fr; } }

/* 76% */
.split { display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,5vw,64px); align-items:center; }
.big76 { font:300 clamp(96px,16vw,190px)/1 var(--serif); color:var(--sky); letter-spacing:-.04em; }
.big76 small { font-size:.35em; }
.points { list-style:none; padding:0; margin:24px 0 0; display:grid; gap:14px; }
.points li { padding:16px 18px; border-radius:16px; background:rgba(255,255,255,.06); border:1px solid var(--line-dark); }
.points li b { color:var(--sky); font-weight:500; }
@media (max-width:900px) { .split { grid-template-columns:1fr; } }

/* 구조 */
.spec { width:100%; border-collapse:collapse; margin-top:20px; background:#fff; border-radius:18px; overflow:hidden; }
.spec th, .spec td { padding:14px 16px; border-bottom:1px solid var(--line); text-align:center; }
.spec th { background:var(--navy); color:var(--on-navy); font-weight:500; }
.spec td:first-child { color:var(--muted); text-align:left; }
.img-round { border-radius:24px; width:100%; }
.pair { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:520px) { .pair { grid-template-columns:1fr; } }

/* 위험·시기 */
.cards3 { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.kcard { background:#fff; border:1px solid var(--line); border-radius:22px; padding:26px; }
.kcard .k { font:500 clamp(28px,3vw,38px)/1.1 var(--serif); color:var(--teal); }
.kcard p { color:var(--muted); margin-top:10px; font-size:15px; }
@media (max-width:900px) { .cards3 { grid-template-columns:1fr; } }

/* 측정·가공 */
.proc { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.pcard { background:var(--navy-up); border:1px solid var(--line-dark); border-radius:24px; overflow:hidden; }
.pcard img { width:100%; aspect-ratio:4/3; object-fit:contain; background:var(--navy-deep); }
.pcard div { padding:22px; }
.pcard p { color:var(--on-navy-muted); margin-top:8px; font-size:15px; }
@media (max-width:900px) { .proc { grid-template-columns:1fr; } }

/* 관리 */
.steps { counter-reset:s; display:grid; grid-template-columns:repeat(4,1fr); gap:16px; list-style:none; padding:0; margin:0; }
.steps li { counter-increment:s; background:#fff; border:1px solid var(--line); border-radius:22px; padding:24px; }
.steps li:before { content:"0" counter(s); font:italic 500 16px var(--latin); color:var(--teal); display:block; margin-bottom:8px; }
.steps p { color:var(--muted); font-size:15px; margin-top:6px; }
@media (max-width:900px) { .steps { grid-template-columns:1fr 1fr; } }
@media (max-width:520px) { .steps { grid-template-columns:1fr; } }

/* FAQ */
.faq details { background:#fff; border:1px solid var(--line); border-radius:18px; padding:4px 20px; margin-bottom:10px; }
.faq summary { cursor:pointer; padding:16px 0; font-weight:500; list-style:none; display:flex; justify-content:space-between; gap:12px; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary:after { content:"+"; color:var(--teal); font-size:22px; line-height:1; }
.faq details[open] summary:after { content:"–"; }
.faq details p { color:var(--muted); padding:0 0 18px; }

/* 이벤트 */
.event { display:grid; grid-template-columns:.8fr 1.2fr; gap:clamp(24px,4vw,56px); align-items:center; }
.event img { border-radius:24px; width:100%; }
@media (max-width:900px) { .event { grid-template-columns:1fr; } }

/* 오시는 길 */
.visit { display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.vcard { background:var(--navy-up); border:1px solid var(--line-dark); border-radius:24px; padding:28px; }
.vcard dl { display:grid; grid-template-columns:96px 1fr; gap:10px 14px; margin:16px 0 0; }
.vcard dt { color:var(--on-navy-muted); }
.vcard dd { margin:0; }
.vcard .cta { display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
@media (max-width:900px) { .visit { grid-template-columns:1fr; } }

footer { background:var(--navy-deep); color:var(--on-navy-muted); padding:40px var(--pad-x) calc(40px + var(--bar-h)); font-size:14px; }
footer p + p { margin-top:6px; }
footer a { color:var(--on-navy); }

/* 하단 고정 메뉴 */
.quickbar { position:fixed; z-index:50; left:0; right:0; bottom:0; height:var(--bar-h); background:var(--navy-deep); border-top:1px solid var(--line-dark); display:grid; grid-template-columns:repeat(5,1fr); padding-bottom:env(safe-area-inset-bottom); }
.quickbar a { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px; text-decoration:none; color:var(--on-navy); font-size:13px; border-left:1px solid var(--line-dark); }
.quickbar a:first-child { border-left:0; }
.quickbar a svg { width:22px; height:22px; stroke:var(--sky); fill:none; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round; }
.quickbar a:hover { background:var(--navy); }
.quickbar a.hl { background:var(--sky); color:var(--navy-deep); font-weight:700; }
.quickbar a.hl svg { stroke:var(--navy-deep); }
@media (min-width:900px) { .quickbar { left:50%; right:auto; transform:translateX(-50%); width:min(760px, calc(100% - 24px)); bottom:12px; border-radius:20px; border:1px solid var(--line-dark); overflow:hidden; box-shadow:0 10px 30px rgba(0,0,0,.25); } }

/* 서브 페이지 히어로 */
.hero.sub { padding-bottom:clamp(56px,7vw,88px); }
.hero.sub h1 { font-size:clamp(32px,4.6vw,54px); }
.crumb { font-size:14px; color:var(--on-navy-muted); margin-bottom:10px; }
.crumb a { text-decoration:none; color:var(--on-navy-muted); }
/* 카테고리 */
.cats { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.cat { display:flex; flex-direction:column; background:#fff; border:1px solid var(--line); border-radius:24px; overflow:hidden; text-decoration:none; transition:transform .2s, box-shadow .2s; }
.cat:hover { transform:translateY(-3px); box-shadow:0 14px 30px rgba(11,42,69,.12); }
.cat .ic { height:120px; display:flex; align-items:center; justify-content:center; background:var(--navy); }
.cat .ic svg { width:56px; height:56px; stroke:var(--sky); fill:none; stroke-width:1.5; stroke-linecap:round; stroke-linejoin:round; }
.cat div.t { padding:22px; flex:1; display:flex; flex-direction:column; }
.cat .en { font:italic 500 14px var(--latin); color:var(--teal); }
.cat h3 { margin:6px 0 8px; }
.cat p { color:var(--muted); font-size:15px; flex:1; }
.cat .more { margin-top:14px; color:var(--teal); font-weight:500; font-size:15px; }
@media (max-width:900px) { .cats { grid-template-columns:1fr 1fr; } }
@media (max-width:520px) { .cats { grid-template-columns:1fr; } }
.nav ul a[aria-current] { color:var(--on-navy); background:rgba(255,255,255,.08); }
.cta-band { text-align:center; }
.cta-band .cta { display:flex; justify-content:center; flex-wrap:wrap; gap:10px; margin-top:28px; }
.cta-band .lead { margin-left:auto; margin-right:auto; }

.steps.five { grid-template-columns:repeat(5,1fr); }
@media (max-width:1000px) { .steps.five { grid-template-columns:1fr 1fr; } }
@media (max-width:520px) { .steps.five { grid-template-columns:1fr; } }

.pcard { color:var(--on-navy); }
.cats { grid-template-columns:repeat(5,1fr); }
@media (max-width:1100px) { .cats { grid-template-columns:repeat(3,1fr); } }
@media (max-width:760px) { .cats { grid-template-columns:1fr 1fr; } }
@media (max-width:520px) { .cats { grid-template-columns:1fr; } }
@media (max-width:1100px) { .nav ul { display:none; } }

/* 해외 학회 갤러리 */
.conf { display:grid; grid-template-columns:repeat(6,1fr); gap:16px; }
.conf figure { margin:0; background:#fff; border:1px solid var(--line); border-radius:20px; overflow:hidden; grid-column:span 2; }
.conf figure:nth-child(1), .conf figure:nth-child(2) { grid-column:span 3; }
.conf img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.conf figcaption { padding:12px 16px; font-size:14px; color:var(--muted); }
@media (max-width:900px) { .conf { grid-template-columns:1fr 1fr; } .conf figure, .conf figure:nth-child(1), .conf figure:nth-child(2) { grid-column:span 1; } }
@media (max-width:520px) { .conf { grid-template-columns:1fr; } }

.gallery.two { grid-template-columns:1fr 1fr; margin-top:0; }
@media (max-width:760px) { .gallery.two { grid-template-columns:1fr; } }
@media (max-width:1100px) { .nav ul { display:flex; } }
@media (max-width:1000px) { .nav ul { display:none; } }

.quickbar { grid-template-columns:repeat(6,1fr); }
.quickbar a { font-size:12px; text-align:center; line-height:1.25; }
@media (min-width:900px) { .quickbar { width:min(880px, calc(100% - 24px)); } .quickbar a { font-size:13px; } }
.quickbar .sm { display:none; }
@media (max-width:520px) { .quickbar .lg { display:none; } .quickbar .sm { display:inline; } }

/* 테스트렌즈 */
.tl-all { margin:0 0 32px; background:#fff; border:1px solid var(--line); border-radius:24px; overflow:hidden; }
.tl-all img { width:100%; max-height:560px; object-fit:cover; }
.tl-all figcaption { padding:12px 16px; font-size:14px; color:var(--muted); }
.brand-h { font:italic 500 18px var(--latin); letter-spacing:.12em; color:var(--teal); margin:28px 0 12px; }
.tl { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.tl figure { margin:0; background:#fff; border:1px solid var(--line); border-radius:18px; overflow:hidden; }
.tl img { width:100%; aspect-ratio:4/3; object-fit:cover; }
.tl figcaption { padding:10px 14px; font-size:15px; font-weight:500; }
@media (max-width:900px) { .tl { grid-template-columns:1fr 1fr; } }

.gallery.three { grid-template-columns:1.3fr 1fr 1fr; margin-top:0; }
.gallery .star { position:relative; border:2px solid var(--sky); }
.gallery .star .badge { position:absolute; top:12px; left:12px; background:var(--sky); color:var(--navy-deep); font-weight:700; font-size:14px; padding:6px 12px; border-radius:999px; }
@media (max-width:900px) { .gallery.three { grid-template-columns:1fr; } }

/* 안경사 */
.team { display:grid; gap:24px; }
.member { display:grid; grid-template-columns:260px 1fr; gap:clamp(20px,4vw,48px); background:#fff; border:1px solid var(--line); border-radius:28px; padding:clamp(22px,3vw,36px); }
.m-side { text-align:center; }
.m-photo { width:180px; height:180px; border-radius:50%; object-fit:cover; object-position:center 20%; margin:0 auto 14px; border:4px solid var(--mist); }
.m-side h3 { font-size:26px; }
.m-role { color:var(--teal); font-size:14px; margin-top:6px; }
.m-full { display:inline-block; margin-top:14px; font-size:14px; color:var(--muted); }
.m-intro { color:var(--ink); font-size:16px; }
.m-body h4 { font:italic 500 15px var(--latin); letter-spacing:.08em; color:var(--teal); margin:22px 0 8px; }
.m-body ul { margin:0; padding-left:18px; color:var(--muted); font-size:15px; }
.m-body li + li { margin-top:4px; }
.m-body .btn { margin-top:22px; }
@media (max-width:760px) { .member { grid-template-columns:1fr; } }
.trust.three { grid-template-columns:repeat(3,1fr); }
.t-person { text-align:center; text-decoration:none; transition:transform .2s; }
.t-person:hover { transform:translateY(-3px); }
.t-person img { width:120px; height:120px; border-radius:50%; object-fit:cover; object-position:center 20%; margin:0 auto 12px; }
@media (max-width:760px) { .trust.three { grid-template-columns:1fr; } }

.m-body h4 { font:700 14px var(--sans); letter-spacing:0; }