/* ═══════════════════════════════════════════════════
   타일압착시멘트 · 에이지벤처스
   Clean-minimal (Linear-tier) · monochrome + single accent
   Grounded in material-datasheet vernacular (mono spec type)
   ═══════════════════════════════════════════════════ */

:root{
  --paper:#ffffff;
  --ink:#16171b;          /* near-black text/CTA */
  --ink-2:#41454d;        /* body secondary */
  --muted:#83878e;        /* labels */
  --line:rgba(20,22,28,.10);
  --line-2:rgba(20,22,28,.06);
  --panel:#f7f7f8;
  --panel-2:#f1f1f3;
  --accent:#0047BB;       /* Pantone 2728C · 메가본드 회사색 */
  --accent-ink:#003a99;
  --p1:#41454d;           /* 일반 라인 = graphite */
  --p2:#0047BB;           /* 고성능 라인 = accent */
  --r:14px; --r-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,17,20,.05);
  --shadow:0 1px 2px rgba(16,17,20,.05), 0 14px 34px -18px rgba(16,17,20,.20);
  --wrap:1120px;
  --sans:'Pretendard Variable','Pretendard','Apple SD Gothic Neo',system-ui,sans-serif;
  /* IBM Plex Mono는 라틴 전용 → 한글은 Pretendard로 폴백(깨짐 방지) */
  --mono:'IBM Plex Mono','Pretendard Variable','Pretendard',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);
  line-height:1.7;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  word-break:keep-all;overflow-wrap:break-word}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.img-fallback{background:
  repeating-linear-gradient(45deg,#e9eaec 0 12px,#eef0f1 12px 24px);min-height:200px;border-radius:inherit}
svg.ic{width:1.15em;height:1.15em;flex:none;vertical-align:middle}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.wrap--narrow{max-width:760px}

/* spec / mono label vernacular */
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.04em}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* buttons — Vercel-style ink button, no gradients */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;font-size:15px;
  padding:12px 20px;border-radius:var(--r-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,color .15s ease;white-space:nowrap}
.btn .ic{width:17px;height:17px}
.btn--cta{background:var(--ink);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--lg{padding:15px 26px;font-size:16px}
.btn--block{display:flex;width:100%}
.btn--on-dark.btn--cta{background:#fff;color:var(--ink)}
.btn--on-dark.btn--ghost{color:#fff;border-color:rgba(255,255,255,.28)}

/* ── topbar : slim mono spec strip ── */
.topbar{border-bottom:1px solid var(--line-2);background:var(--paper)}
.topbar__in{display:flex;justify-content:space-between;align-items:center;height:36px;font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.03em}
.topbar__badge{text-transform:uppercase;letter-spacing:.12em}
.topbar__tel{display:flex;align-items:center;gap:6px}
.topbar__num{color:var(--ink);font-weight:600}

/* ── header ── */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line-2)}
.site-header__in{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.15}
.brand__logo{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.brand__logo b{color:var(--accent);font-weight:800}
.brand__txt{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase}
.gnb{display:flex;gap:28px;margin-left:auto;font-size:14.5px;font-weight:500;color:var(--ink-2)}
.gnb a{position:relative;padding:4px 0}
.gnb a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1.5px;background:var(--ink);transition:right .25s ease}
.gnb__cta{margin-left:4px}
.gnb__toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:7px;margin-left:auto;color:var(--ink)}
.gnb__toggle .ic{width:20px;height:20px}

/* ── hero : editorial split, no gradient glow ── */
.hero{border-bottom:1px solid var(--line-2)}
.hero__in{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:88px 24px 96px}
.hero__h1{font-size:clamp(2.3rem,4.6vw,3.5rem);font-weight:800;line-height:1.08;letter-spacing:-.035em;margin:18px 0 4px}
.hero__h1 em{font-style:normal;color:var(--accent)}
.hero__sub{font-size:clamp(1.5rem,3.1vw,2.3rem);font-weight:700;line-height:1.15;letter-spacing:-.03em;color:var(--ink-2);margin-bottom:22px}
.hero__sub em{font-style:normal;color:var(--accent)}
.hero__lead{font-size:17.5px;color:var(--ink-2);max-width:33em;margin-bottom:28px}
.hero__lead b{color:var(--ink);font-weight:600}
.hero__cta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
/* spec row — datasheet vernacular instead of stat badges */
.specrow{display:flex;gap:0;border-top:1px solid var(--line);flex-wrap:wrap}
.specrow div{padding:16px 22px 0 0;margin-right:22px;border-right:1px solid var(--line-2)}
.specrow div:last-child{border-right:0}
.specrow dt{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;margin-bottom:3px}
.specrow dd{font-size:20px;font-weight:700;letter-spacing:-.02em}
.hero__media{position:relative}
/* nested "double-bezel" frame */
.frame{background:var(--panel);border:1px solid var(--line);border-radius:calc(var(--r) + 5px);padding:6px}
.frame img{border-radius:var(--r);width:100%;aspect-ratio:4/5;object-fit:cover}
.frame__tag{position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-family:var(--mono);font-size:11px;color:var(--ink);letter-spacing:.03em}
/* hero video embed */
.video-embed{position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;background:#000}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.frame--video{padding:6px}

/* full-bleed 영상 배너 (텍스트 미포함) */
.hero-video{position:relative;height:clamp(440px,74vh,820px);overflow:hidden;background:#0a0b0e;border-bottom:1px solid var(--line-2)}
.hero__bg{position:absolute;inset:0;overflow:hidden}
/* 성능: 정적 포스터 이미지가 항상 배경에 깔려 즉시 렌더된다(LCP 개선).
   유튜브 iframe은 JS가 페이지 로드 후 지연 삽입 — 로드되면 opacity 페이드인으로 포스터 위에 자연스럽게 겹친다. */
.hero__poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
/* 상단 기준 고정 + 확대(origin:top) → 하단(한글 자막)·유튜브 재생바를 항상 컨테이너 밖으로 크롭 */
.hero__bg iframe{position:absolute;top:0;left:50%;
  transform:translateX(-50%) scale(1.42);transform-origin:top center;
  width:100vw;height:56.25vw;min-width:177.78vh;min-height:100%;border:0;pointer-events:none;
  opacity:0;transition:opacity .6s ease}
.hero__bg iframe.is-loaded{opacity:1}

/* 영상 아래 H1 카피 영역 — 가운데 정렬 */
.hero-copy{padding:72px 0 76px;text-align:center;border-bottom:1px solid var(--line-2)}
.hero-copy__in{max-width:800px;margin:0 auto}
.hero-copy .hero__h1{margin-top:14px}
.hero-copy .hero__lead{max-width:36em;margin-left:auto;margin-right:auto}
.hero-copy .hero__cta{justify-content:center}
.hero-copy .specrow{justify-content:center;border-top:0;padding-top:8px}
.hero-copy .specrow div{padding-top:0}
@media(max-width:600px){.hero-video{height:52vh;min-height:320px}.hero-copy{padding:52px 0 56px}}

/* article subhead (H1은 순수 키워드, 설명은 여기로) */
.article__sub{font-size:clamp(1.15rem,2.1vw,1.45rem);font-weight:600;color:var(--ink-2);letter-spacing:-.02em;line-height:1.35;margin-bottom:14px}

/* consult page — 전화번호 노출 전용 카드 */
.consult-card{border:1px solid var(--ink);border-radius:var(--r);padding:32px;margin:28px 0;text-align:center;background:var(--panel)}
.consult-card__label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.consult-card__tel{display:inline-flex;align-items:center;gap:12px;margin:12px 0 6px;font-size:clamp(1.9rem,4.4vw,2.8rem);font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.consult-card__tel .ic{width:.8em;height:.8em;color:var(--accent)}
.consult-card__hours{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.03em}
.consult-card__actions{display:flex;gap:10px;justify-content:center;margin-top:18px;flex-wrap:wrap}

/* ── standards strip ── */
.stdstrip{border-bottom:1px solid var(--line-2);background:var(--panel)}
.stdstrip__in{display:flex;align-items:center;gap:14px 40px;flex-wrap:wrap;padding:22px 24px;font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.03em}
.stdstrip__in b{color:var(--ink);font-weight:600}
.stdstrip__lead{text-transform:uppercase;letter-spacing:.16em;font-size:10.5px}

/* ── section ── */
.section{padding:96px 0}
.section--alt{background:var(--panel);border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section__head{max-width:640px;margin-bottom:52px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.section__head h2{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin:14px 0 12px}
.section__head p{color:var(--ink-2);font-size:16.5px}
.section__note{margin-top:34px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;color:var(--ink-2);font-size:15px}
.section__note b{color:var(--ink)}
.inline-link{color:var(--accent);font-weight:600;border-bottom:1px solid transparent}

/* ── products ── */
.prodgrid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.prodcard{border:1px solid var(--line);border-radius:var(--r);padding:32px;background:var(--paper);transition:border-color .2s,box-shadow .2s,transform .2s}
.prodcard__code{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted);display:flex;align-items:center;gap:8px;margin-bottom:16px}
.prodcard__code::before{content:"";width:22px;height:2px;background:var(--p1)}
.prodcard--p2 .prodcard__code{color:var(--accent)}
.prodcard--p2 .prodcard__code::before{background:var(--p2)}
.prodcard--p2{border-color:rgba(0,71,187,.38)}
.prodcard h3{font-size:20px;font-weight:700;letter-spacing:-.02em;margin-bottom:10px}
.prodcard__desc{color:var(--ink-2);font-size:15px;margin-bottom:20px}
.prodcard__list{list-style:none;margin-bottom:22px;display:grid;gap:2px}
.prodcard__list li{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-top:1px solid var(--line-2);font-size:14.5px;color:var(--ink-2)}
.prodcard__list .ic{width:16px;height:16px;color:var(--accent);margin-top:5px}
.prodcard__links{display:flex;flex-direction:column;gap:1px}
.prodcard__links a{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:12px 0;border-top:1px solid var(--line-2);font-weight:600;font-size:14.5px;transition:color .15s}
.prodcard__links a .ic{width:16px;height:16px;color:var(--muted);transition:transform .18s,color .18s}

/* ── guide ── */
.guidegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden}
.guidecard{background:var(--paper);padding:30px;transition:background .2s}
.guidecard__code{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;color:var(--muted);margin-bottom:14px}
.guidecard h3{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px}
.guidecard__desc{color:var(--muted);font-size:13.5px;margin-bottom:16px}
.guidecard ul{list-style:none;display:grid;gap:4px}
.guidecard li a{display:flex;align-items:center;justify-content:space-between;padding:8px 0;font-size:14.5px;font-weight:500;color:var(--ink-2);border-top:1px solid var(--line-2);transition:color .15s}
.guidecard li a .ic{width:15px;height:15px;color:var(--muted);transition:transform .18s,color .18s}

/* ── why ── */
.whygrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.whycard{border:1px solid var(--line);border-radius:var(--r);padding:26px;background:var(--paper)}
.whycard__ic{display:inline-flex;padding:10px;border:1px solid var(--line);border-radius:10px;margin-bottom:16px;color:var(--accent)}
.whycard__ic .ic{width:20px;height:20px}
.whycard h3{font-size:16px;font-weight:700;margin-bottom:8px}
.whycard p{font-size:14px;color:var(--ink-2)}

/* ── process (real sequence → numbering justified) ── */
.stepgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step{position:relative;padding:28px;border:1px solid var(--line);border-radius:var(--r);background:var(--paper)}
.step__no{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.1em;margin-bottom:14px}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px;letter-spacing:-.02em}
.step p{font-size:14px;color:var(--ink-2)}

/* ── product lineup (제품 사진 · P1/P2) ── */
.lineup-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.prodphoto{display:block;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--paper);
  transition:border-color .18s,transform .18s,box-shadow .18s}
.prodphoto__img{background:var(--panel);display:flex;align-items:center;justify-content:center;padding:24px;border-bottom:1px solid var(--line-2)}
.prodphoto__img img{width:auto;max-width:100%;height:240px;object-fit:contain}
.prodphoto__body{padding:26px}
.prodphoto__badge{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  display:flex;align-items:center;gap:8px;margin-bottom:10px}
.prodphoto__badge::before{content:"";width:22px;height:2px;background:var(--p1)}
.prodphoto--p1 .prodphoto__badge{color:var(--p1)}
.prodphoto--p2 .prodphoto__badge{color:var(--p2)}
.prodphoto--p2 .prodphoto__badge::before{background:var(--p2)}
.prodphoto h3{font-size:19px;font-weight:700;letter-spacing:-.02em;margin-bottom:8px;color:var(--ink)}
.prodphoto p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px}
.prodphoto__cta{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--accent)}
.prodphoto__cta .ic{width:15px;height:15px;transition:transform .18s}
@media(max-width:600px){.lineup-grid{grid-template-columns:1fr}}

/* ── cases ── */
.casegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.casecard{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--paper)}
.casecard img{width:100%;aspect-ratio:5/4;object-fit:cover}
.casecard figcaption{padding:20px}
.casecard__meta{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;margin-bottom:8px}
.casecard h3{font-size:16px;font-weight:700;margin-bottom:6px;letter-spacing:-.02em}
.casecard p{font-size:13.5px;color:var(--ink-2)}

/* ── faq ── */
.faq{border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{display:flex;align-items:center;gap:14px;padding:22px 0;font-weight:600;font-size:16px;cursor:pointer;list-style:none;letter-spacing:-.01em}
.faq__item summary::-webkit-details-marker{display:none}
.faq__q{font-family:var(--mono);font-size:12px;color:var(--accent);flex:none}
.faq__item summary::after{content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--muted);transition:transform .2s}
.faq__item[open] summary::after{content:"−"}
.faq__a{padding:0 0 24px 40px;color:var(--ink-2);font-size:15px;max-width:60em}

/* ── company ── */
.company{display:grid;grid-template-columns:1.3fr .8fr;gap:48px;align-items:start}
.company h2{font-size:clamp(1.6rem,2.6vw,2rem);font-weight:800;letter-spacing:-.03em;margin-bottom:16px}
.company__txt p{color:var(--ink-2);margin-bottom:22px;font-size:16px}
.company__facts{list-style:none;display:grid;gap:0;border-top:1px solid var(--line)}
.company__facts li{display:flex;gap:16px;padding:13px 0;border-bottom:1px solid var(--line-2);font-size:14.5px}
.company__facts b{min-width:104px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;font-weight:500;padding-top:2px}
.company__cta{border:1px solid var(--line);border-radius:var(--r);padding:32px;background:var(--panel)}
.company__cta h3{font-size:19px;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.company__cta p{color:var(--ink-2);font-size:14.5px;margin-bottom:20px}

/* ── cta band ── */
.cta-band{background:var(--ink);color:#fff}
.cta-band__in{display:flex;justify-content:space-between;align-items:center;gap:28px;padding:56px 24px;flex-wrap:wrap}
.cta-band .eyebrow{color:#9ea2ab}
.cta-band__lead{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;letter-spacing:-.03em;margin:12px 0 8px}
.cta-band__sub{color:#b7bac1;font-size:15px}
.cta-band__act{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.cta-band__hours{font-family:var(--mono);font-size:11.5px;color:#8b8f98;letter-spacing:.04em}

/* ── footer ── */
.site-footer{background:var(--paper);border-top:1px solid var(--line);padding:64px 0 40px}
.footmap{display:grid;grid-template-columns:160px 1fr;gap:24px;padding-bottom:44px;border-bottom:1px solid var(--line-2)}
.footmap h3{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.footmap ul{list-style:none;display:grid;gap:9px}
.footmap__col{min-width:0}
.footmap__col--cats ul{grid-template-columns:1fr 1fr;gap:9px 20px}
.footmap a{font-size:14px;color:var(--ink-2)}
.bizinfo{padding-top:28px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.bizinfo__co{font-weight:800;font-size:15px;margin-bottom:8px}
.bizinfo p{font-size:13px;color:var(--muted);line-height:1.8}
.bizinfo a{color:var(--ink-2)}
.bizinfo__copy{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.03em;text-align:right}

/* ── floating call (mobile) ── */
.floating-call{display:none;position:fixed;left:16px;right:16px;bottom:16px;z-index:60;
  background:var(--ink);color:#fff;align-items:center;justify-content:center;gap:9px;
  font-weight:600;font-size:15px;padding:15px;border-radius:12px;box-shadow:var(--shadow)}
.floating-call .ic{width:18px;height:18px}

/* ── breadcrumb ── */
.crumb{border-bottom:1px solid var(--line-2);background:var(--paper)}
.crumb .wrap{padding-top:14px;padding-bottom:14px;font-family:var(--mono);font-size:11.5px;letter-spacing:.03em;color:var(--muted)}
.crumb b{color:var(--ink);font-weight:500}

/* ── article ── */
.article{padding:56px 0 72px}
/* PC 2단 반응형 (본문 + 사이드바), 모바일 스택 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 328px;gap:56px;align-items:start}
.article-main{min-width:0}
.article-side{position:sticky;top:96px;display:grid;gap:16px}
.side-card{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:var(--panel)}
.side-card__label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.side-card h3{font-size:17px;font-weight:700;letter-spacing:-.02em;margin:8px 0 6px}
.side-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:16px}
.side-prod{border-radius:var(--r);padding:22px;color:#fff}
.side-prod--p1{background:var(--p1)}
.side-prod--p2{background:var(--p2)}
.side-prod .prodbox__code{color:rgba(255,255,255,.82);margin-bottom:8px}
.side-prod b{display:block;font-size:16px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px}
.side-prod span{font-size:13px;line-height:1.65;opacity:.94}
.side-prod__buy{display:inline-flex;align-items:center;gap:5px;margin-top:14px;padding-top:12px;
  border-top:1px solid rgba(255,255,255,.22);font-size:12.5px;font-weight:700;color:#ffc53d;
  transition:color .15s,gap .15s}
.side-prod__buy .ic{width:13px;height:13px}

/* ── 모바일 hover 고착 방지: hover는 마우스 포인터가 있는 기기에서만 활성 ── */
@media (hover: hover) and (pointer: fine) {
  .btn--cta:hover{background:#000;transform:translateY(-1px)}
  .btn--ghost:hover{border-color:var(--ink);background:var(--panel)}
  .btn--on-dark.btn--cta:hover{background:#f0f0f0}
  .btn--on-dark.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
  .gnb a:hover{color:var(--ink)}
  .gnb a:hover::after{right:0}
  .consult-card__tel:hover{color:var(--accent)}
  .inline-link:hover{border-color:var(--accent)}
  .prodcard:hover{border-color:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}
  .prodcard__links a:hover{color:var(--accent)}
  .prodcard__links a:hover .ic{color:var(--accent);transform:translate(2px,-2px)}
  .guidecard:hover{background:var(--panel)}
  .guidecard li a:hover{color:var(--ink)}
  .guidecard li a:hover .ic{color:var(--accent);transform:translateX(2px)}
  .prodphoto:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:var(--shadow)}
  .prodphoto:hover .prodphoto__cta .ic{transform:translate(2px,-2px)}
  .footmap a:hover{color:var(--accent)}
  .crumb a:hover{color:var(--accent)}
  .side-prod__buy:hover{color:#ffd873;gap:8px}
  .related__item:hover{border-color:var(--ink);transform:translateY(-2px)}
}
@media(max-width:920px){
  .article-layout{grid-template-columns:1fr;gap:0}
  .article-side{position:static;margin-top:36px;grid-template-columns:1fr 1fr}
}
@media(max-width:600px){.article-side{grid-template-columns:1fr}}
.article__head{padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:36px}
.article__tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.article__cat,.article__prod{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;border:1px solid var(--line)}
.article__cat{color:var(--muted)}
.article__prod{color:#fff;border-color:transparent}
.article__prod--p1{background:var(--p1)}
.article__prod--p2{background:var(--p2)}
.article__head h1{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;letter-spacing:-.035em;line-height:1.18;margin-bottom:16px}
.article__lead{font-size:17.5px;color:var(--ink-2)}
.article__cta{margin-top:24px}
.article__sec{margin:36px 0}
.article__sec h2{font-size:22px;font-weight:700;letter-spacing:-.025em;margin-bottom:14px}
.article__sec p{margin-bottom:12px;color:var(--ink-2)}
.article__sec ul{margin:12px 0 12px 4px;list-style:none;display:grid;gap:8px}
.article__sec li{padding-left:22px;position:relative;color:var(--ink-2)}
.article__sec li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border:1.5px solid var(--accent);border-radius:2px}
.article__sec b{color:var(--ink);font-weight:600}
.article__img{border-radius:var(--r);border:1px solid var(--line);margin:22px 0;width:100%;aspect-ratio:16/9;object-fit:cover}

/* data table */
.tablewrap{overflow-x:auto;margin:26px 0;border:1px solid var(--line);border-radius:var(--r)}
.datatable{width:100%;border-collapse:collapse;font-size:14.5px}
.datatable caption{text-align:left;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:16px 18px 0}
.datatable th,.datatable td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line-2)}
.datatable thead th{font-family:var(--mono);font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);font-weight:500}
.datatable tbody tr:last-child td{border-bottom:0}
.datatable tbody td:first-child{font-weight:600;color:var(--ink)}

/* prodbox */
.prodbox{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  border:1px solid var(--line);border-radius:var(--r);padding:26px;margin:36px 0;background:var(--panel)}
.prodbox__code{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px}
.prodbox--p1 .prodbox__code{color:var(--p1)}
.prodbox--p2 .prodbox__code{color:var(--p2)}
.prodbox b{display:block;font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:2px}
.prodbox span{font-size:14px;color:var(--ink-2)}

/* related */
.related{margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}
.related h2{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:18px}
.related__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.related__grid--cards{grid-template-columns:repeat(3,1fr)}
.related__card{border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;display:grid;gap:0;
  transition:border-color .18s,transform .18s;background:var(--paper)}
.related__thumb{width:100%;aspect-ratio:16/10;object-fit:cover}
.related__card .related__cat,.related__card .related__kw{padding:0 14px}
.related__card .related__cat{margin-top:12px}
.related__card .related__kw{margin:4px 0 14px}
.related__cat{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.related__kw{font-weight:600;font-size:15px;letter-spacing:-.01em}
.related__card--cta{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  gap:8px;padding:24px 14px;background:var(--ink);color:#fff}
.related__card--cta .related__kw{color:#fff;margin:0;padding:0}
.related__card--cta .related__cat{color:#9ea2ab;margin:0;padding:0}
.related__cta-ic{display:flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:50%;background:rgba(255,255,255,.12);color:#fff}
.related__cta-ic .ic{width:18px;height:18px}

/* state page */
.state-page{padding:60px 0;text-align:center}
.state-page .mono{color:var(--muted);display:block;margin-bottom:16px}
.state-page h1{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;letter-spacing:-.03em;margin-bottom:12px}
.state-page p{color:var(--ink-2);margin-bottom:24px}

/* ── article layout variation blocks ── */
.article__img2{border-radius:var(--r);border:1px solid var(--line);margin:22px 0;width:100%;aspect-ratio:16/9;object-fit:cover}
.imggallery{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}
.imggallery img{border-radius:var(--r);border:1px solid var(--line);width:100%;aspect-ratio:4/3;object-fit:cover;margin:0}

.statstrip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:28px 0}
.statstrip__item{background:var(--paper);padding:22px 18px;text-align:center}
.statstrip__num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--accent);letter-spacing:-.01em;line-height:1.1}
.statstrip__label{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.4}

.callout{display:flex;gap:14px;padding:20px 22px;border-radius:var(--r);margin:26px 0;border:1px solid var(--line)}
.callout--tip{background:#eef3ff;border-color:rgba(0,71,187,.18)}
.callout--warn{background:#fff6ea;border-color:rgba(180,110,10,.2)}
.callout__ic{flex:none;width:22px;height:22px;color:var(--accent)}
.callout--warn .callout__ic{color:#b46e0a}
.callout__body b{display:block;font-size:14.5px;font-weight:700;margin-bottom:4px}
.callout__body p{font-size:13.5px;color:var(--ink-2);line-height:1.65}

.pullquote{margin:30px 0;padding:26px 28px;border-left:3px solid var(--accent);background:var(--panel);
  border-radius:0 var(--r) var(--r) 0;font-size:18px;font-weight:600;letter-spacing:-.015em;line-height:1.55;color:var(--ink)}

.checklist{margin:24px 0;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;background:var(--panel)}
.checklist__title{font-size:14px;font-weight:700;margin-bottom:12px;letter-spacing:-.01em}
.checklist ul{list-style:none;display:grid;gap:10px}
.checklist li{padding-left:26px;position:relative;font-size:14px;color:var(--ink-2);line-height:1.55}
.checklist li::before{content:"";position:absolute;left:0;top:3px;width:16px;height:16px;border-radius:5px;
  border:1.5px solid var(--accent);background:var(--paper)}
.checklist li::after{content:"";position:absolute;left:4.5px;top:6.5px;width:8px;height:5px;border-left:1.6px solid var(--accent);
  border-bottom:1.6px solid var(--accent);transform:rotate(-45deg)}

.article__sec .stepgrid{margin-top:18px}

/* ── scroll reveal ── */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ── responsive ── */
@media(max-width:920px){
  .hero__in,.company{grid-template-columns:1fr;gap:40px}
  .prodgrid{grid-template-columns:1fr}
  .guidegrid,.whygrid,.casegrid,.stepgrid,.related__grid{grid-template-columns:1fr 1fr}
  .footmap{grid-template-columns:1fr 1fr}
  .statstrip{grid-template-columns:1fr 1fr}
  .gnb,.gnb__cta{display:none}
  .gnb__toggle{display:inline-flex}
  body.nav-open .gnb{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--paper);padding:8px 24px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  body.nav-open .gnb a{padding:14px 0;border-bottom:1px solid var(--line-2)}
  body.nav-open .gnb a::after{display:none}
  .section{padding:72px 0}
}
@media(max-width:600px){
  .topbar{display:none}
  .footmap{display:none}
  .guidegrid,.whygrid,.casegrid,.stepgrid,.related__grid{grid-template-columns:1fr}
  .statstrip{grid-template-columns:1fr}
  .imggallery{grid-template-columns:1fr}
  .hero__in{padding:56px 24px 64px}
  .floating-call{display:flex}
  body{padding-bottom:78px}
  .bizinfo__copy{text-align:left}
  .specrow div{border-right:0}
}