:root{--ink:#172727;--muted:#647272;--line:#dce8e5;--paper:#f7faf8;--white:#fff;--teal:#0b6b62;--deep:#08483f;--mint:#dff2ec;--mint2:#edf8f4;--coral:#ef8f72;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;line-height:1.7;font-size:16px}a{color:inherit;text-decoration:none}img{display:block;width:100%;height:100%;object-fit:cover}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:99;padding:10px 14px;background:#fff;border-radius:8px}.site-header{position:relative;background:var(--paper);border-bottom:1px solid rgba(11,107,98,.08)}.header-inner{max-width:var(--max);margin:auto;padding:17px 22px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--teal);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:-.06em}.brand strong{display:block;font-size:17px;letter-spacing:-.05em;line-height:1.1}.brand small{display:block;color:var(--muted);font-size:11px;line-height:1.2;margin-top:3px}.header-call{color:var(--teal);font-size:14px;font-weight:700}.hero{max-width:var(--max);margin:auto;padding:55px 22px 54px;display:grid;gap:32px;align-items:center}.eyebrow{margin:0 0 15px;color:var(--teal);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow span{display:inline-block;width:22px;height:2px;margin:0 8px 4px 0;background:var(--coral)}.hero-kicker{display:inline-block;margin:0 0 13px;padding:5px 11px;border-radius:50px;background:var(--mint);color:var(--teal);font-weight:800;font-size:13px}.hero h1{font-size:clamp(39px,9vw,72px);line-height:1.16;letter-spacing:-.08em;margin:0 0 22px;font-weight:800}.hero h1 em,h2 em{font-style:normal;color:var(--teal)}.hero-lead{font-size:17px;color:#465655;max-width:490px;margin:0}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin:28px 0 23px}.button{min-height:50px;padding:12px 20px;border-radius:12px;display:inline-flex;justify-content:center;align-items:center;gap:13px;font-weight:800;font-size:15px;transition:transform .2s ease,box-shadow .2s ease}.button:hover{transform:translateY(-2px);box-shadow:0 9px 20px rgba(23,39,39,.12)}.button span{font-size:19px;line-height:0}.button-primary{background:var(--teal);color:#fff}.button-light{background:#fff;color:var(--deep)}.button-outline{border:1px solid rgba(11,107,98,.28);color:var(--teal)}.text-link{color:var(--teal);font-size:14px;font-weight:800}.text-link span{margin-left:4px}.hero-note{border-left:2px solid var(--coral);padding-left:12px;color:var(--muted);font-size:14px;margin:0}.hero-visual{position:relative}.image-frame{overflow:hidden;border-radius:22px;background:#e9f1ee}.hero-image{height:410px;box-shadow:0 18px 40px rgba(25,62,57,.12)}.hero-image img{object-position:center}.hero-badge{position:absolute;left:18px;bottom:-17px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:12px 15px;box-shadow:0 10px 22px rgba(23,39,39,.09)}.hero-badge strong{display:block;font-size:13px;color:var(--deep)}.hero-badge small{display:block;font-size:11px;color:var(--muted);margin-top:2px}.badge-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--coral);margin-right:6px}.proof-strip{max-width:var(--max);margin:0 auto 20px;padding:0 22px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.proof-strip div{padding:18px 10px;display:flex;align-items:center;justify-content:center;gap:9px;border-right:1px solid var(--line);font-size:13px}.proof-strip div:last-child{border:0}.proof-strip strong{font-size:12px;color:var(--coral)}.section{max-width:var(--max);margin:auto;padding:94px 22px}.contrast-section{padding-top:88px}.section-heading{max-width:620px}.section-heading.compact{max-width:590px}.section-heading h2,.dust-copy h2,.final-cta h2{font-size:clamp(32px,6vw,52px);line-height:1.25;letter-spacing:-.075em;margin:0 0 18px}.section-heading>p:last-child,.dust-copy>p{color:var(--muted);margin:0;font-size:16px}.difference-grid{margin-top:40px;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.difference-card{position:relative;min-height:210px;padding:22px;border:1px solid var(--line);background:#fff;border-radius:18px}.difference-card.featured{background:var(--mint2);border-color:transparent}.card-number{position:absolute;right:18px;top:18px;color:#91aaa4;font-size:12px;font-weight:800}.card-icon{width:38px;height:38px;border-radius:12px;background:var(--mint);color:var(--teal);display:grid;place-items:center;font-size:20px;margin-bottom:26px}.difference-card h3{font-size:18px;margin:0 0 6px;letter-spacing:-.05em}.difference-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}.process-section{background:#fff;max-width:none;padding-left:max(22px,calc((100vw - var(--max))/2 + 22px));padding-right:max(22px,calc((100vw - var(--max))/2 + 22px))}.process-list{max-width:var(--max);margin:42px auto 0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 55px}.process-item{display:grid;grid-template-columns:74px 1fr;gap:17px;padding:20px 0;border-top:1px solid var(--line)}.step{font-size:11px;font-weight:800;color:#96a8a5;letter-spacing:.02em;padding-top:4px}.step b{font-size:20px;color:var(--teal);margin-left:3px}.process-item h3{margin:0 0 5px;font-size:16px;letter-spacing:-.04em}.process-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}.photo-story{max-width:var(--max);margin:auto;padding:94px 22px;display:grid;gap:38px;align-items:center}.story-image{height:390px;border-radius:22px;overflow:hidden}.story-copy{max-width:470px}.story-copy h2{font-size:clamp(32px,6vw,50px);line-height:1.25;letter-spacing:-.075em;margin:0 0 18px}.story-copy>p:not(.eyebrow){color:var(--muted);margin:0}.mini-quote{margin-top:26px;padding:15px 18px;background:var(--mint2);border-left:3px solid var(--coral);color:var(--deep);font-size:14px;font-weight:700}.equipment-section{padding-top:25px}.equipment-layout{margin-top:38px;display:grid;gap:30px;align-items:center}.equipment-image{height:310px}.equipment-copy>p{color:var(--muted);margin:0 0 28px}.line-point{display:grid;grid-template-columns:38px 1fr;column-gap:10px;align-items:center;padding:11px 0;border-top:1px solid var(--line)}.line-point span{grid-row:span 2;color:var(--coral);font-size:12px;font-weight:800}.line-point b{font-size:15px}.line-point small{color:var(--muted);font-size:12px}.dust-section{max-width:none;background:var(--deep);color:#fff;display:grid;gap:34px;align-items:center;padding-left:max(22px,calc((100vw - var(--max))/2 + 22px));padding-right:max(22px,calc((100vw - var(--max))/2 + 22px))}.dust-copy{max-width:530px}.eyebrow.light{color:#a6ded2}.dust-copy>p:not(.eyebrow){color:#c2d5d1}.dust-image{height:380px;position:relative;border-radius:20px;overflow:hidden}.dust-image img{object-position:center}.dust-image span{position:absolute;bottom:15px;left:15px;padding:7px 10px;background:rgba(8,72,63,.84);border-radius:8px;font-size:12px;color:#fff}.check-section{padding-bottom:50px}.check-layout{margin-top:38px;display:grid;gap:20px}.meter-card{min-height:210px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;display:grid;grid-template-columns:145px 1fr;gap:20px;align-items:center}.meter-card img{height:180px;border-radius:12px;object-position:center}.meter-card b{display:block;color:var(--deep);font-size:17px}.meter-card small{display:block;color:var(--muted);font-size:13px;margin-top:7px}.check-note{padding:22px;background:var(--mint2);border-radius:18px}.check-mark{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;font-size:16px;margin-bottom:15px}.check-note p{margin:0;color:var(--deep);font-weight:700;font-size:15px}.check-note small{display:block;color:var(--muted);font-size:12px;margin-top:16px}.visibility-section{padding-top:50px}.visibility-flow{margin-top:35px;padding:24px 18px;border:1px solid var(--line);background:#fff;border-radius:18px;display:flex;align-items:center;justify-content:space-between;gap:8px;overflow:auto}.visibility-flow div{flex:1;min-width:100px}.visibility-flow span{display:block;color:var(--coral);font-size:12px;font-weight:800}.visibility-flow b{display:block;margin-top:4px;font-size:13px;white-space:nowrap}.visibility-flow i{font-style:normal;color:#a4b7b3;font-size:18px}.recommend-section{padding-top:60px}.recommend-grid{margin-top:36px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.recommend-grid div{position:relative;padding:16px 17px 16px 37px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:14px}.recommend-grid div:before{content:'✓';position:absolute;left:16px;color:var(--teal);font-weight:800}.mid-cta{max-width:var(--max);margin:0 auto 90px;padding:30px 32px;border-radius:22px;background:var(--teal);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px}.mid-cta p{margin:0;font-size:20px;line-height:1.45;letter-spacing:-.05em}.mid-cta p strong{color:#c7efe5}.final-cta{background:#e5f3ee;text-align:center;padding:95px 22px 90px}.final-cta .eyebrow{justify-content:center}.final-cta h2{margin-bottom:16px}.final-cta>p:not(.eyebrow):not(.final-phone){max-width:520px;margin:0 auto;color:var(--muted)}.final-actions{display:flex;justify-content:center;gap:10px;margin-top:28px;flex-wrap:wrap}.final-phone{margin:23px 0 0;color:var(--teal);font-weight:800;letter-spacing:.04em}.site-footer{max-width:var(--max);margin:auto;padding:38px 22px 92px;color:var(--muted);font-size:12px}.footer-brand strong{display:block;color:var(--ink);font-size:18px;letter-spacing:-.05em}.footer-brand span{display:block;margin-top:2px}.footer-info{margin-top:20px;line-height:1.8}.footer-info p{margin:0}.site-footer>small{display:block;margin-top:22px;color:#91a09d;font-size:11px}.mobile-bar{display:none}
@media (min-width:760px){.hero{grid-template-columns:1fr .92fr;padding-top:80px;padding-bottom:85px}.photo-story{grid-template-columns:1.05fr .95fr}.equipment-layout{grid-template-columns:1.1fr .9fr}.dust-section{grid-template-columns:1fr 1fr}.check-layout{grid-template-columns:1.05fr .95fr}.meter-card{grid-template-columns:150px 1fr}}
@media (min-width:980px){.difference-grid{grid-template-columns:repeat(4,1fr)}.difference-card{min-height:260px}.hero-image{height:510px}.story-image{height:470px}.equipment-image{height:390px}.dust-image{height:470px}.mid-cta{padding:38px 50px}}
@media (max-width:759px){body{padding-bottom:64px}.header-call{font-size:13px}.hero{padding-top:42px}.hero h1{font-size:47px}.hero-image{height:330px}.proof-strip{margin-bottom:0;padding:0 12px}.proof-strip div{padding:15px 4px;display:block;text-align:center;font-size:11px}.proof-strip strong{display:block;margin-bottom:2px}.section{padding-top:70px;padding-bottom:70px}.contrast-section{padding-top:72px}.process-list{grid-template-columns:1fr;gap:0}.process-item{grid-template-columns:69px 1fr}.story-image{height:300px}.photo-story{padding-top:70px;padding-bottom:70px}.equipment-section{padding-top:0}.equipment-image{height:280px}.dust-section{padding-top:72px;padding-bottom:72px}.dust-image{height:330px;order:-1}.meter-card{grid-template-columns:118px 1fr;padding:12px;gap:14px}.meter-card img{height:170px}.visibility-flow{justify-content:flex-start}.visibility-flow i{display:none}.visibility-flow div{min-width:130px}.mid-cta{margin:0 22px 70px;padding:25px 21px;display:block;text-align:center}.mid-cta .button{margin-top:19px;width:100%}.final-cta{padding:76px 22px}.final-actions .button{width:100%}.mobile-bar{position:fixed;z-index:20;bottom:0;left:0;right:0;display:grid;grid-template-columns:1.25fr 1fr;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 22px rgba(23,39,39,.08)}.mobile-bar a{padding:16px 8px;text-align:center;font-size:14px;font-weight:800;color:#fff;background:var(--teal)}.mobile-bar a:last-child{color:var(--teal);background:#fff;border-left:1px solid var(--line)}}
@media (min-width:760px){.check-layout{grid-template-columns:repeat(2,minmax(0,1fr))}.meter-card{grid-template-columns:90px 1fr}.meter-card img{height:180px}}
.hero-coverage{margin:-4px 0 13px;color:var(--coral);font-size:14px;font-weight:800;letter-spacing:-.03em}.hero-note small{display:block;margin-top:4px;color:var(--teal);font-size:12px;font-weight:700}.faq-section{padding-top:20px}.faq-list{margin-top:32px;border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:0 4px}.faq-list summary{cursor:pointer;list-style:none;position:relative;padding:19px 34px 19px 0;color:var(--deep);font-size:15px;font-weight:800}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:4px;top:14px;color:var(--teal);font-size:23px;font-weight:400}.faq-list details[open] summary:after{content:'−'}.faq-list details p{margin:0 30px 19px 0;color:var(--muted);font-size:14px;line-height:1.7}

/* Final trust and real-field-photo treatment */
.proof-strip{grid-template-columns:repeat(4,1fr)}
.direct-strip{max-width:var(--max);margin:0 auto;padding:28px 22px 18px;display:flex;align-items:center;gap:16px}
.direct-mark{flex:0 0 48px;width:48px;height:48px;border-radius:15px;background:var(--teal);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;letter-spacing:-.06em}
.direct-strip .eyebrow{margin:0 0 3px;font-size:11px}
.direct-strip h2{margin:0;color:var(--deep);font-size:22px;letter-spacing:-.06em}
.direct-strip h2 strong{color:var(--teal)}
.direct-strip>div:last-child>p:last-child{margin:3px 0 0;color:var(--muted);font-size:14px}
.photo-marquee{overflow-x:auto;overflow-y:hidden;padding:22px 0 6px;background:var(--paper);scrollbar-width:thin;scroll-snap-type:x proximity}
.marquee-track{width:min(100%,1000px);margin:0 auto}
.marquee-set{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding:12px 24px 18px}
.marquee-set figure{width:210px;height:145px;margin:0;border-radius:16px;overflow:hidden;background:#e9f1ee;box-shadow:0 7px 18px rgba(25,62,57,.08)}
.marquee-set img{object-position:center}
@media (max-width:759px){
  .proof-strip{padding:0 8px}
  .proof-strip div{padding:15px 2px;display:block;text-align:center;font-size:10px;line-height:1.35}
  .proof-strip strong{display:block;margin-bottom:2px}
  .direct-strip{padding:24px 22px 10px;align-items:flex-start}
  .direct-mark{flex-basis:42px;width:42px;height:42px;border-radius:13px;font-size:12px}
  .direct-strip h2{font-size:19px}
  .direct-strip>div:last-child>p:last-child{font-size:13px;line-height:1.55}
  .photo-marquee{padding:18px 0 3px}
  .marquee-track{width:max-content;margin:0}
  .marquee-set{display:flex;gap:10px;padding:10px 18px 14px}
  .marquee-set figure{border-radius:12px}
}

/* Symptom guidance section: replaces the former recommendation cards. */
.concern-section{padding-top:60px;padding-bottom:58px;text-align:center}
.concern-image-link{display:block;max-width:560px;margin:0 auto;border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 16px 34px rgba(25,62,57,.10);transition:transform .2s ease,box-shadow .2s ease}
.concern-image-link:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(25,62,57,.14)}
.concern-image-link img{height:auto;object-fit:contain}
.concern-caption{margin:16px auto 0;color:var(--muted);font-size:13px}
@media (max-width:759px){
  .concern-section{padding-top:50px;padding-bottom:50px}
  .concern-image-link{border-radius:16px}
  .concern-caption{font-size:12px;line-height:1.55;padding:0 12px}
}

/* Desktop contact actions: copy the business number; mobile retains native tel/sms actions. */
.header-call{display:inline-flex;align-items:center;gap:7px}
.phone-number{font-variant-numeric:tabular-nums;letter-spacing:.01em}
.final-phone{display:block;margin:23px 0 0;color:var(--teal);font-weight:800;letter-spacing:.04em}
.phone-copy-toast{position:fixed;z-index:1000;left:50%;bottom:24px;transform:translate(-50%,12px);max-width:min(92vw,520px);padding:13px 18px;border-radius:10px;background:#24302f;color:#fff;box-shadow:0 8px 28px rgba(0,0,0,.22);font-size:14px;line-height:1.5;text-align:center;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease}
.phone-copy-toast.is-visible{opacity:1;transform:translate(-50%,0)}
@media (max-width:759px){.phone-number{display:none}}

/* Make the business number easy to spot on desktop; the mobile call bar stays compact. */
@media (min-width:760px){
  .header-call{gap:10px;padding:10px 16px;border:2px solid var(--teal);border-radius:999px;background:var(--teal);color:#fff;font-size:15px;font-weight:800;box-shadow:0 5px 14px rgba(8,72,63,.18);white-space:nowrap}
  .header-call::before{content:'☎';font-size:17px;line-height:1}
  .phone-number{font-size:19px;font-weight:900;letter-spacing:.025em}
  .header-call:hover{background:var(--deep);border-color:var(--deep);box-shadow:0 7px 18px rgba(8,72,63,.24)}
  .header-call:focus-visible,.final-phone:focus-visible{outline:3px solid var(--coral);outline-offset:4px}
  .final-phone{width:max-content;margin:24px auto 0;padding:10px 18px;border:2px solid var(--teal);border-radius:12px;background:#fff;color:var(--deep);font-size:25px;font-variant-numeric:tabular-nums;letter-spacing:.035em;box-shadow:0 6px 18px rgba(8,72,63,.1)}
}

/* Keep the number visible in the fixed call action at narrow or zoomed desktop widths too. */
.mobile-bar a:last-child{font-size:clamp(11px,3.4vw,14px);white-space:nowrap}
.mobile-bar a:last-child span{font-variant-numeric:tabular-nums;letter-spacing:.015em}
.final-phone{width:max-content;max-width:100%;margin:24px auto 0;padding:11px 18px;border:2px solid var(--teal);border-radius:12px;background:#fff;color:var(--deep);font-size:clamp(18px,2vw,25px);font-variant-numeric:tabular-nums;letter-spacing:.035em;line-height:1.35;text-align:center;box-shadow:0 6px 18px rgba(8,72,63,.1)}

/* Show the complete field photos in square cards on every screen size. */
.marquee-set figure{width:auto;height:auto;aspect-ratio:1/1;scroll-snap-align:start}
.marquee-set img{width:100%;height:100%;object-fit:contain;object-position:center;background:transparent}
@media (max-width:759px){
  .marquee-set figure{flex:0 0 clamp(170px,44vw,205px);width:auto;height:auto;aspect-ratio:1/1;border-radius:12px}
}
.hero h1 em,.hero-title-last{display:block}
.hero h1,.hero-lead{word-break:keep-all}
.marquee-set figure{position:relative;isolation:isolate}
.marquee-set figure::before{content:"";display:block;position:absolute;inset:-14px;z-index:0;background-image:var(--photo);background-position:center;background-size:cover;filter:blur(14px) saturate(.72);opacity:.25;transform:scale(1.05)}
.marquee-set img{position:relative;z-index:1;background:transparent;object-fit:contain;filter:drop-shadow(0 3px 8px rgba(22,42,40,.10))}

@media (min-width:760px) and (max-width:1050px){
  .marquee-track{width:max-content;margin:0}
  .marquee-set{display:flex}
  .marquee-set figure{flex:0 0 210px}
}


/* Restore the earlier calm, continuous right-to-left field-photo gallery. */
.photo-marquee{width:100%;max-width:none;margin:0;overflow:hidden;padding:22px 0 10px;background:var(--paper);scroll-snap-type:none}
.marquee-track{display:flex;width:max-content;max-width:none;margin:0;animation:photo-flow 42s linear infinite;will-change:transform}
.marquee-set{display:flex;flex:0 0 auto;gap:12px;padding:10px 12px 16px}
.marquee-set figure{flex:0 0 clamp(190px,22vw,280px);width:clamp(190px,22vw,280px);height:auto;aspect-ratio:1/1;margin:0;overflow:hidden;border-radius:16px;background:#e9f1ee;box-shadow:0 7px 18px rgba(25,62,57,.08)}
.marquee-set img{width:100%;height:100%;object-fit:contain;object-position:center;background:#e9f1ee}
@keyframes photo-flow{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.photo-marquee:hover .marquee-track,.photo-marquee:focus-within .marquee-track{animation-play-state:paused}
@media (max-width:759px){
  .photo-marquee{padding:18px 0 5px}
  .marquee-set{gap:8px;padding:8px 8px 12px}
  .marquee-set figure{flex-basis:clamp(170px,44vw,205px);width:clamp(170px,44vw,205px);border-radius:12px}
}
@media (prefers-reduced-motion:reduce){
  .photo-marquee{overflow-x:auto;scrollbar-width:thin}
  .marquee-track{animation:none;will-change:auto}
}

/* On desktop, fill the equal square gallery cards so source aspect ratios
   don't make some photos look smaller than their neighbors. */
@media (min-width:760px){
  .marquee-set img{object-fit:cover;object-position:center}
}