/* air.nanoscentkorea.com — 매장디퓨저 디자인 시스템
   구조 참고: 참고 사이트 공개 style.css 확인값(섹션 sec/alt/invert/dark 교차, 3열·2열 그리드, 직각 2px 카드·버튼, 대형 헤드라인, Pretendard Variable)
   컬러(HEX)·문구·이미지는 자체 선정 — 브론즈/샌드 계열 */
:root{
  --bg:#F7F4EE;
  --paper:#FFFFFF;
  --sand:#EEE8DB;
  --ink:#1F1B15;
  --ink-soft:#5A5346;
  --ink-faint:#857D6E;
  --line:#DDD5C4;
  --accent:#8A5E24;
  --accent-dark:#6E4A1B;
  --accent-soft:#F0E4CF;
  --panel:#1F1B15;
  --panel-2:#2A251D;
  --panel-text:#F5F0E6;
  --panel-muted:#B9AF9B;
  --radius:2px;
  --maxw:1180px;
  --pad:clamp(56px,8vw,112px);
  --font:"Pretendard Variable","Pretendard",-apple-system,BlinkMacSystemFont,"Malgun Gothic",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:break-word}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure,address,table{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.25}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* 버튼 */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 28px;font:700 .95rem/1 var(--font);border:1px solid var(--accent);border-radius:var(--radius);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.btn--solid{background:var(--accent);color:#fff}
.btn--solid:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.btn--line{background:transparent;color:var(--accent)}
.btn--line:hover{background:var(--accent);color:#fff}
.btn--sm{min-height:40px;padding:0 18px;font-size:.86rem}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.dark .btn--line,.hero .btn--line{color:var(--panel-text);border-color:rgba(255,255,255,.5)}
.dark .btn--line:hover,.hero .btn--line:hover{background:var(--panel-text);color:var(--panel)}
.dark .btn--solid,.hero .btn--solid{background:var(--panel-text);color:var(--panel);border-color:var(--panel-text)}
.dark .btn--solid:hover,.hero .btn--solid:hover{background:var(--accent-soft)}

/* 헤더 */
.hdr{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr__bar{display:flex;align-items:center;gap:28px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:.95rem;white-space:nowrap}
.brand img{width:auto;height:30px}
.hdr__nav{display:flex;gap:26px;margin-left:auto;font-size:.9rem;color:var(--ink-soft)}
.hdr__nav a:hover{color:var(--accent)}
.hdr .btn{flex:none}

/* 공통 섹션 */
.sec{padding:var(--pad) 0}
.sec--alt{background:var(--sand)}
.sec--paper{background:var(--paper)}
.dark{background:var(--panel);color:var(--panel-text)}
.dark .sec__lead,.dark p{color:var(--panel-muted)}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.16em;color:var(--accent);margin-bottom:14px}
.dark .eyebrow{color:#D3A862}
.sec__title{font-size:clamp(1.6rem,3.6vw,2.6rem);margin-bottom:14px}
.sec__lead{max-width:640px;color:var(--ink-soft);margin-bottom:40px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}

/* 인트로 + 상품 그리드 (상품 우선형: 최상단) */
.intro{padding:clamp(40px,6vw,76px) 0 clamp(24px,3vw,36px)}
.intro__row{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(24px,5vw,72px);align-items:end}
.intro h1{font-size:clamp(2.6rem,6.4vw,5rem);line-height:1.05;font-weight:900;letter-spacing:-.03em}
.intro__copy{font-size:1.1rem;color:var(--ink-soft);max-width:460px}
.intro__note{margin-top:14px;font-size:.88rem;color:var(--ink-faint)}
.products{padding:0 0 var(--pad)}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.pcard__media{background:var(--sand);aspect-ratio:4/5;overflow:hidden}
.pcard__media img{width:100%;height:100%;object-fit:cover}
.pcard__body{display:flex;flex-direction:column;gap:10px;padding:22px 22px 24px;flex:1}
.pcard__eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.08em;color:var(--accent)}
.pcard__title{font-size:1.02rem;line-height:1.45;font-weight:700;letter-spacing:-.01em}
.pcard__desc{font-size:.92rem;color:var(--ink-soft)}
.pcard__specs{font-size:.84rem;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:12px;display:grid;gap:5px}
.pcard__specs li{padding-left:12px;position:relative}
.pcard__specs li::before{content:"";position:absolute;left:0;top:.7em;width:4px;height:1px;background:var(--accent)}
.pcard__price{margin-top:auto;padding-top:10px;display:flex;align-items:baseline;flex-wrap:wrap;gap:8px}
.pcard__price s{color:var(--ink-faint);font-size:.88rem}
.pcard__price strong{font-size:1.4rem;font-weight:800}
.pcard__rate{color:var(--accent);font-weight:800}
.pcard__price--ask{font-weight:700;color:var(--ink-soft)}
.pcard .btn{width:100%}
.price-note{margin-top:20px;font-size:.86rem;color:var(--ink-faint);text-align:center}

/* 히어로 (전면 이미지 + 오버레이) */
.hero{position:relative;min-height:min(78vh,680px);display:flex;align-items:center;color:#fff;background:var(--panel);overflow:hidden}
.hero__media{position:absolute;inset:0}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,16,10,.82) 0%,rgba(20,16,10,.55) 48%,rgba(20,16,10,.3) 100%)}
.hero__text{position:relative;z-index:2;padding:var(--pad) 24px;width:100%}
.hero h2{font-size:clamp(2rem,5.4vw,4.2rem);font-weight:900;line-height:1.12;margin-bottom:18px}
.hero p{max-width:520px;color:rgba(255,255,255,.86)}

/* 3열 소개 */
.pillar{padding:28px 0;border-top:2px solid var(--ink)}
.pillar__no{font-size:.8rem;font-weight:800;letter-spacing:.14em;color:var(--accent)}
.pillar h3{font-size:1.25rem;margin:10px 0}
.pillar p{color:var(--ink-soft);font-size:.96rem}

/* 공간 카드 */
.tile{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.tile h3{font-size:1.1rem;margin-bottom:10px}
.tile p,.tile li{font-size:.92rem;color:var(--ink-soft)}
.tile ul{margin-top:10px;display:grid;gap:4px}
.tile li{padding-left:12px;position:relative}
.tile li::before{content:"";position:absolute;left:0;top:.8em;width:4px;height:1px;background:var(--accent)}

/* 사용 순서 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.step{padding:22px 20px 24px;background:var(--paper);border:1px solid var(--line);border-top:0;border-radius:var(--radius)}
.step::before{content:"";display:block;width:28px;height:4px;background:var(--accent);margin-bottom:16px}
.step h3{font-size:1rem;margin-bottom:6px}
.step p{font-size:.9rem;color:var(--ink-soft)}

/* 이미지 밴드 */
.band{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.band img{width:100%;height:clamp(220px,28vw,380px);object-fit:cover}

/* 표 */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);background:var(--paper)}
table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:640px}
caption{text-align:left;padding:16px 18px;font-weight:700;caption-side:top}
th,td{padding:14px 18px;text-align:left;border-top:1px solid var(--line);vertical-align:top}
thead th{background:var(--sand);font-weight:700;border-top:0}
tbody th{font-weight:700;white-space:nowrap}
.dark .tbl-wrap{background:var(--panel-2);border-color:rgba(255,255,255,.14)}
.dark th,.dark td{border-color:rgba(255,255,255,.12);color:var(--panel-text)}
.dark thead th{background:rgba(255,255,255,.06)}

/* FAQ */
.faq{max-width:860px;display:grid;gap:0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{list-style:none;cursor:pointer;padding:18px 36px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--accent)}
.faq details[open] summary::after{content:"−"}
.faq h3{font-size:1.05rem;font-weight:700;display:inline}
.faq p{padding:0 0 20px;color:var(--ink-soft);max-width:760px}
.dark .faq,.dark .faq details{border-color:rgba(255,255,255,.16)}
.dark .faq p{color:var(--panel-muted)}

/* CTA */
.cta{text-align:center}
.cta .sec__title{margin-left:auto;margin-right:auto;max-width:720px}
.cta p{max-width:560px;margin:0 auto}
.cta .btn-row{justify-content:center}

/* 푸터 */
.ftr{background:var(--panel);color:var(--panel-muted);padding:56px 0 100px;font-size:.88rem}
.ftr__brand{color:var(--panel-text);font-weight:800;font-size:1.05rem;margin-bottom:18px}
.ftr__nav{display:flex;flex-wrap:wrap;gap:8px 22px;margin-bottom:26px}
.ftr__nav a:hover{color:#fff}
.ftr__biz{font-style:normal;display:flex;flex-wrap:wrap;gap:6px 22px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px}

/* 플로팅 */
.floating{position:fixed;right:16px;bottom:16px;z-index:60;display:flex;gap:8px}
.floating .btn--line{background:var(--paper)}

/* NSEO 본문 */
.page-head{padding:clamp(40px,6vw,80px) 0 28px}
.page-head h1{font-size:clamp(2.2rem,5.4vw,4rem);font-weight:900;line-height:1.1;margin:8px 0 18px}
.crumbs{font-size:.84rem;color:var(--ink-faint)}
.crumbs a:hover{color:var(--accent)}
.page-head__tag{font-size:1.15rem;color:var(--accent);font-weight:700;margin-bottom:12px}
.prose{max-width:780px}
.prose section{padding:44px 0 8px;border-top:1px solid var(--line)}
.prose section:first-child{border-top:0;padding-top:8px}
.prose h2{font-size:clamp(1.45rem,2.8vw,1.95rem);margin:0 0 18px;padding-left:16px;border-left:4px solid var(--accent)}
.prose h3{font-size:1.1rem;margin:26px 0 8px;color:var(--accent-dark)}
.prose p{margin-bottom:14px;color:var(--ink-soft)}
.prose ul,.prose ol{margin:0 0 18px;display:grid;gap:8px;color:var(--ink-soft)}
.prose ul li{padding-left:16px;position:relative}
.prose ul li::before{content:"";position:absolute;left:0;top:.85em;width:6px;height:1px;background:var(--accent)}
.prose ol li{padding-left:22px;position:relative}
.prose ol li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;background:var(--accent)}
.prose .tbl-wrap{margin:8px 0 22px}
.prose figure{margin:28px 0}
.prose figure img{width:100%;border-radius:var(--radius);border:1px solid var(--line)}
.prose figcaption{font-size:.84rem;color:var(--ink-faint);margin-top:8px}
.prose .quote{border-left:3px solid var(--accent);padding:6px 0 6px 18px;margin:20px 0;font-size:1.1rem;font-weight:700;color:var(--ink)}
.related{margin-top:56px}
.related .pgrid{grid-template-columns:minmax(0,420px)}
.page-narrow{max-width:640px;margin:0 auto;padding:96px 24px}

/* ===== 디자인 v2: 섹션 구분 · 헤딩 위계 · 카드 ===== */
.eyebrow{display:flex;align-items:center;gap:12px;letter-spacing:.18em}
.eyebrow::before{content:"";width:28px;height:2px;background:currentColor}
.sec__head{margin-bottom:clamp(28px,4vw,48px)}
.sec__head .sec__lead{margin-bottom:0}
.sec__title{position:relative}
.sec--paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec--alt{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.products.sec--paper{padding:clamp(36px,5vw,64px) 0 var(--pad)}
.intro{border-bottom:0}
.pcard{transition:box-shadow .25s,transform .25s}
.pcard:hover{box-shadow:0 14px 34px rgba(31,27,21,.10);transform:translateY(-3px)}
.pcard__title{padding-bottom:10px;border-bottom:1px solid var(--line)}
.need{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);overflow:hidden;transition:box-shadow .25s,transform .25s}
.need:hover{box-shadow:0 14px 34px rgba(31,27,21,.10);transform:translateY(-3px)}
.need__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.need__media img,.pc__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.need:hover .need__media img,.pc:hover .pc__media img{transform:scale(1.05)}
.need__body{display:flex;flex-direction:column;gap:10px;padding:22px 24px 26px;flex:1}
.need__who{align-self:flex-start;font-size:.78rem;font-weight:700;color:var(--accent-dark);background:var(--accent-soft);padding:4px 10px;border-radius:var(--radius)}
.need h3{font-size:1.2rem;line-height:1.4}
.need__text{font-size:.94rem;color:var(--ink-soft)}
.need__link,.pc__cta{margin-top:auto;padding-top:10px;font-weight:700;font-size:.92rem;color:var(--accent)}
.need__link::after,.pc__cta::after{content:" \203A";transition:margin .2s}
.need:hover .need__link::after,.pc:hover .pc__cta::after{margin-left:6px}
/* 사진카드형 페이지 링크 (하단 "함께 보면 좋은 페이지") */
.pc{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .25s,transform .25s}
.pc:hover{box-shadow:0 14px 34px rgba(31,27,21,.10);transform:translateY(-3px)}
.pc__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--sand)}
.pc__body{display:flex;flex-direction:column;gap:8px;padding:20px 22px 24px;flex:1}
.pc__title{font-size:1.12rem;font-weight:800;letter-spacing:-.02em}
.pc__desc{font-size:.92rem;color:var(--ink-soft)}
.more{padding-bottom:calc(var(--pad) + 8px)}
.tile{border-top:3px solid var(--accent-soft);transition:border-color .2s}
.tile:hover{border-top-color:var(--accent)}
.tile h3{padding-bottom:10px;border-bottom:1px solid var(--line)}
.faq summary h3{font-size:1.05rem}
.faq details[open] summary h3{color:var(--accent-dark)}
.band picture{display:block;min-width:0}
.btn{letter-spacing:-.01em}

/* 모바일 표: 가로 스크롤 대신 행을 카드형으로 */
@media (max-width:620px){
  table{min-width:0}
  table,tbody,tr,th,td{display:block;width:100%}
  thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  caption{display:block}
  tbody tr{border-top:1px solid var(--line);padding:12px 0}
  tbody tr:first-child{border-top:0}
  th[scope=row]{border:0;padding:6px 18px 2px;white-space:normal;font-size:1rem}
  td{border:0;padding:4px 18px;display:flex;gap:12px;justify-content:space-between;text-align:right}
  td::before{content:attr(data-label);flex:none;text-align:left;color:var(--ink-faint);font-weight:600}
  .dark td::before{color:var(--panel-muted)}
  .dark tbody tr{border-color:rgba(255,255,255,.12)}
}

/* 반응형 */
@media (max-width:980px){
  .hdr__nav{display:none}
  .hdr .btn{margin-left:auto}
  .intro__row{grid-template-columns:1fr}
  .pgrid,.grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .pgrid,.grid-3,.grid-2,.grid-4,.steps{grid-template-columns:1fr}
  .band{grid-template-columns:1fr}
  .band img:nth-child(n+2){display:none}
  .brand span{display:none}
  .floating{left:12px;right:12px}
  .floating .btn{flex:1}
}

/* ===== 모바일 버튼·하단 바 ===== */
@media (max-width:620px){
  .btn{min-height:52px;font-size:1rem}
  .btn--sm{min-height:44px;padding:0 16px;font-size:.9rem}
  .btn-row{flex-direction:column;gap:10px}
  .btn-row .btn{width:100%}
  .hdr__bar{min-height:60px;gap:12px}
  .hdr .btn{min-height:42px}
  .floating{left:0;right:0;bottom:0;gap:8px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(247,244,238,.97);border-top:1px solid var(--line);backdrop-filter:blur(8px)}
  .floating .btn{flex:1;min-height:48px;font-size:.95rem}
  .ftr{padding-bottom:110px}
  .need__body{padding:20px 20px 24px}
  .pcard__media{aspect-ratio:1/1}
  .sec__title{font-size:1.55rem}
  .intro h1{font-size:2.5rem}
  .hero h2{font-size:1.9rem}
  .cta .btn-row{align-items:stretch}
}
@media (hover:none){.pcard:hover,.need:hover,.pc:hover{transform:none;box-shadow:none}}

/* 하단 사진카드: 5장일 때 마지막 줄 가운데 정렬 */
.more .grid-3{display:flex;flex-wrap:wrap;justify-content:center;gap:24px}
.more .pc{flex:0 1 calc((100% - 48px)/3);min-width:0}
.cta .eyebrow{justify-content:center}
@media (max-width:980px){.more .pc{flex-basis:calc((100% - 24px)/2)}}
@media (max-width:620px){.more .pc{flex-basis:100%}}

/* ===== NSEO v2: 풀폭 섹션 밴드 · 카드 블록 ===== */
.pull{margin:32px 0;padding:28px 32px;background:var(--panel);color:var(--panel-text);border-left:4px solid #D3A862;border-radius:var(--radius);max-width:860px}
.pull p{font-size:clamp(1.15rem,2.4vw,1.5rem);font-weight:700;line-height:1.55;letter-spacing:-.02em;margin:0;color:var(--panel-text)}
.sec .prose + .prose,.sec .prose + .fcards,.sec .prose + .bacards,.sec .prose + .steps{margin-top:6px}
.sec > .wrap > * + *{margin-top:20px}
.sec > .wrap > .sec__head{margin-bottom:clamp(20px,3vw,32px)}
.sec > .wrap > .sec__head + *{margin-top:0}
.fig{margin:8px 0}
.fig img{width:100%;border-radius:var(--radius);border:1px solid var(--line);max-height:520px;object-fit:cover}
.fig figcaption{font-size:.84rem;color:var(--ink-faint);margin-top:8px}
.figs{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.figs .fig img{aspect-ratio:4/3;object-fit:cover}
.fcards .tile h3{font-size:1.08rem}
.bacards{margin-top:8px}
.ba{background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:var(--radius);overflow:hidden}
.ba h3{font-size:1.08rem;padding:20px 22px 14px}
.ba__row{display:flex;gap:12px;padding:14px 22px;font-size:.93rem;line-height:1.65;margin:0}
.ba__row--before{background:var(--sand);color:var(--ink-soft)}
.ba__row--after{color:var(--ink);font-weight:600}
.ba__tag{flex:none;align-self:flex-start;min-width:30px;text-align:center;font-size:.75rem;font-weight:800;padding:3px 6px;border-radius:var(--radius);background:var(--ink-faint);color:#fff;letter-spacing:.04em}
.ba__row--after .ba__tag{background:var(--accent)}
.checklist{display:grid;gap:10px;max-width:780px}
.checklist li{position:relative;padding:14px 18px 14px 52px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);font-size:.96rem;color:var(--ink-soft)}
.checklist li::before{content:"";position:absolute;left:20px;top:50%;width:14px;height:8px;margin-top:-7px;border-left:3px solid var(--accent);border-bottom:3px solid var(--accent);transform:rotate(-45deg)}
.steps--3{grid-template-columns:repeat(3,1fr)}
.steps--4{grid-template-columns:repeat(4,1fr)}
.sec--alt .step,.sec--alt .tile,.sec--alt .checklist li{background:var(--paper)}
.sec--paper .tile{background:var(--bg)}
.sec--paper .step{background:var(--bg)}
.page-head .prose{margin-top:6px}
@media (max-width:980px){.steps--3,.steps--4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.figs{grid-template-columns:1fr}.steps--3,.steps--4{grid-template-columns:1fr}.pull{padding:22px 20px}.ba__row{padding:14px 18px}.ba h3{padding:18px 18px 12px}}

/* 세로형 제품 사진: 잘리지 않게 3:4 비율 유지 */
.fig--p img{aspect-ratio:3/4;max-height:none;object-fit:cover}
.fig:not(.figs .fig).fig--p{max-width:440px}
.figs .fig--p img{aspect-ratio:3/4}
.figs:has(.fig--p){grid-template-columns:repeat(2,minmax(0,1fr));max-width:760px}
@media (max-width:620px){.fig:not(.figs .fig).fig--p{max-width:100%}.figs:has(.fig--p){max-width:none}.figs .fig--p img{aspect-ratio:4/5}}

.products{padding:var(--pad) 0}