/* =========================================================
   LINKAIR 랜딩페이지 스타일시트
   컨셉: 연한 연두 파스텔톤, 동글동글하고 부드러운 힐링 무드
   폰트: 본문 SBAggroL / 강조·타이틀 Black Han Sans (skew -10deg)
   ========================================================= */

:root{
  --mint-50:  #f4fbf1;
  --mint-100: #e6f6dc;
  --mint-200: #d3eec1;
  --mint-300: #b9e3a3;
  --mint-400: #9ed684;
  --mint-500: #86c96a;
  --mint-600: #5fae4c;
  --teal-500: #159a8b;
  --teal-600: #0d7e73;
  --ink: #2b3a2f;
  --ink-soft: #56685c;
  --cream: #fffdf6;
  --white: #ffffff;
  --kakao: #FEE500;
  --kakao-text:#3c1e1e;
  --shadow-soft: 0 10px 30px rgba(95, 174, 76, 0.18);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

*{ box-sizing: border-box; margin:0; padding:0; }

html{ scroll-behavior: smooth; }

body{
  font-family: 'SBAggroL', 'Noto Sans KR', sans-serif;
  color: var(--ink);
  background: var(--mint-50);
  line-height: 1.6;
  overflow-x: hidden;
  font-size: 16px;
}

body.is-loading{ overflow: hidden; }

/* ============ LOADING SCREEN ============ */
.loading-screen{
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: linear-gradient(160deg, var(--mint-100) 0%, var(--mint-50) 55%, var(--cream) 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loading-screen.loaded{
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loading-inner{
  display:flex;
  flex-direction: column;
  align-items:center;
  gap: 18px;
  text-align:center;
}
.loading-logo{
  width: 160px;
  animation: loadingPulse 1.4s ease-in-out infinite;
}
@keyframes loadingPulse{
  0%,100%{ transform: scale(1); opacity: 1; }
  50%{ transform: scale(1.06); opacity: 0.85; }
}
.loading-bar-track{
  width: 220px;
  height: 8px;
  border-radius: 999px;
  background: var(--mint-200);
  overflow: hidden;
}
.loading-bar-fill{
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mint-500), var(--teal-500));
  transition: width 2.8s linear;
}
.loading-text{
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-weight: 700;
}

img{ max-width: 100%; display:block; }
a{ text-decoration:none; color: inherit; }
ul{ list-style:none; }
button{ font-family:inherit; border:none; background:none; cursor:pointer; }

.title-font, h1, h2, h3,
.hero-title, .section-title, .tilt-line,
.power-num, .detail-percent, .price-num,
.hero-float-card strong{
  font-family: 'Black Han Sans', 'SBAggroL', sans-serif;
  letter-spacing: 0.5px;
}

/* 스큐 -10도 효과: 너무 굵지 않게, 약간 기울여 리듬감 */
.tilt-line{
  display:inline-block;
  transform: skewX(-10deg);
  font-weight: 400;
}
.tilt-line.accent{ color: var(--teal-600); }
.tilt-line.small{ font-size: 0.95em; }

.mobile-br{ display:none; }

/* ============ 공통 섹션 ============ */
.section{
  padding: 90px 24px;
  position: relative;
}
.section-inner{
  max-width: 1140px;
  margin: 0 auto;
  text-align: center;
}
.section-eyebrow{
  display:inline-block;
  font-family:'Black Han Sans', sans-serif;
  color: var(--teal-500);
  background: var(--mint-100);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 18px;
  transform: skewX(-10deg);
}
.section-title{
  font-size: 2.1rem;
  line-height: 1.35;
  margin-bottom: 18px;
  color: var(--ink);
  font-weight: 400;
}
.section-title.left{ text-align:left; }
.section-desc{
  color: var(--ink-soft);
  font-size: 1.02rem;
  max-width: 720px;
  margin: 0 auto 40px;
}
.section-desc.left{ text-align:left; margin:0 0 30px; max-width:520px; }

/* ============ 애니메이션 (reveal) ============ */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in-view{
  opacity: 1;
  transform: translateY(0);
}

/* ============ 버튼 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-3px); }
.btn-primary{
  background: linear-gradient(135deg, var(--mint-500), var(--teal-500));
  color: #fff;
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover{ box-shadow: 0 14px 34px rgba(21,154,139,0.3); }
.btn-outline{
  background: #fff;
  color: var(--teal-600);
  border: 2px solid var(--mint-300);
}
.btn-outline:hover{ background: var(--mint-100); }
.btn-kakao{
  background: var(--kakao);
  color: var(--kakao-text);
}
.btn-call{
  background: var(--ink);
  color: #fff;
}

/* ============ HEADER ============ */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 500;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 14px rgba(0,0,0,0.04);
}
.header-inner{
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
}
.logo-img{
  height: 84px;
  object-fit:contain;
  display:block;
}
.header-nav{
  display:flex;
  gap: 28px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-soft);
}
.header-nav a:hover{ color: var(--teal-600); }
.header-cta{
  display:flex;
  align-items:center;
  gap:8px;
  background: var(--teal-500);
  color:#fff;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}
.header-cta:hover{ background: var(--teal-600); }

/* ============ HERO ============ */
.hero-section{
  position: relative;
  min-height: 100vh;
  display:flex;
  flex-direction: column;
  justify-content:center;
  padding: 140px 24px 80px;
  background: linear-gradient(160deg, var(--mint-100) 0%, var(--mint-50) 45%, var(--cream) 100%);
  overflow: hidden;
}
.hero-bg-blob{
  position:absolute;
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.55;
  z-index:0;
}
.blob1{
  width: 420px; height: 420px;
  background: var(--mint-300);
  top: -120px; right: -100px;
}
.blob2{
  width: 320px; height: 320px;
  background: var(--teal-500);
  opacity: 0.18;
  bottom: -100px; left: -80px;
}
.hero-inner{
  position:relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items:center;
}
.eyebrow{
  color: var(--teal-600);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.hero-title{
  font-size: 3rem;
  line-height: 1.3;
  margin-bottom: 22px;
  font-weight: 400;
}
.hero-title .tilt-line{ display:block; }
.hero-title .accent{ color: var(--teal-600); }
.hero-sub{
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-bottom: 32px;
}
.hero-sub strong{ color: var(--teal-600); }
.hero-cta-group{
  display:flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap: 10px 18px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-weight:700;
}
.hero-badges li{ display:flex; align-items:center; gap:6px; }
.hero-badges i{ color: var(--mint-600); }

.hero-image{
  position: relative;
  display:flex;
  justify-content:center;
}
.hero-product-img{
  max-width: 380px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.hero-float-card{
  position:absolute;
  background:#fff;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.1);
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-weight:700;
  text-align:center;
  animation: floatUpDown 4s ease-in-out infinite;
}
.hero-float-card strong{ display:block; font-size:1.4rem; color: var(--teal-600); }
.hero-float-card i{ color: var(--mint-500); margin-bottom:2px; }
.float1{ top: 6%; left: -6%; animation-delay: 0s; }
.float2{ bottom: 8%; right: -8%; animation-delay: 1.4s; }

@keyframes floatUpDown{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-12px); }
}

.scroll-down{
  position:absolute;
  bottom: 24px; left:50%;
  transform: translateX(-50%);
  color: var(--mint-600);
  font-size: 1.4rem;
  animation: bounceDown 1.8s infinite;
  z-index:1;
}
@keyframes bounceDown{
  0%,100%{ transform: translate(-50%,0); }
  50%{ transform: translate(-50%,8px); }
}

/* ============ PROBLEM ============ */
.problem-section{ background: var(--white); }
.problem-icons{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 40px 0 50px;
}
.p-icon{
  background: var(--mint-50);
  border-radius: var(--radius-md);
  padding: 24px 10px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-soft);
  transition: transform 0.25s ease;
}
.p-icon:hover{ transform: translateY(-6px); }
.p-icon i{ font-size: 1.8rem; color: var(--teal-500); }

.problem-arrow{
  background: linear-gradient(135deg, var(--mint-100), var(--mint-50));
  border-radius: var(--radius-lg);
  padding: 40px 24px;
}
.problem-arrow .strike{ text-decoration: line-through; color:#c17c7c; }
.problem-arrow i{ font-size: 1.6rem; color: var(--teal-500); margin: 14px 0; }
.solution-highlight{
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--teal-600);
  margin-top: 6px;
}

/* ============ MARQUEE (인증 배너) ============ */
.marquee-section{
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--teal-600), var(--mint-500));
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.marquee-track{
  display: flex;
  width: max-content;
  animation: marquee-scroll 42s linear infinite;
}
.marquee-track:hover{ animation-play-state: paused; }
.marquee-group{
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.marquee-item{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  color: #fff;
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0 28px;
  border-right: 1px solid rgba(255,255,255,0.3);
}
.marquee-item i{ color: #fff; opacity: 0.9; }
.marquee-item .m-org{
  font-family: 'Black Han Sans', sans-serif;
  letter-spacing: 0.5px;
}
.marquee-item .m-sep{ opacity: 0.6; }
.marquee-item strong{ color: #fffef2; }

/* 두 그룹을 나란히 배치해 -50% 이동만으로 seamless loop 구현 */
@keyframes marquee-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ============ SOLUTION / POWER ============ */
.solution-section{ background: linear-gradient(180deg, var(--mint-50), var(--white)); }
.power-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}
.power-card{
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s ease;
}
.power-card:hover{ transform: translateY(-10px); }
.power-icon{
  width: 64px; height:64px;
  border-radius: 50%;
  background: var(--mint-100);
  display:flex; align-items:center; justify-content:center;
  font-size: 1.7rem;
  color: var(--teal-500);
  margin: 0 auto 18px;
}
.power-card h3{ font-size: 1.1rem; font-weight:700; margin-bottom: 10px; font-family:'SBAggroL','Noto Sans KR',sans-serif;}
.power-num{
  font-size: 2.6rem;
  color: var(--teal-600);
  margin-bottom: 12px;
}
.power-num span{ font-size: 1.4rem; }
.power-desc{ color: var(--ink-soft); font-size: 0.92rem; }

.product-shot{
  border-radius: var(--radius-lg);
  overflow:hidden;
  box-shadow: var(--shadow-soft);
  max-width: 640px;
  margin: 0 auto;
}

/* ============ DETAIL DATA ============ */
.detail-section{ background: var(--white); }
.detail-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 50px;
}
.detail-card{
  background: var(--mint-50);
  border-radius: var(--radius-md);
  padding: 28px 18px;
  text-align:center;
  border: 1px solid var(--mint-200);
}
.detail-emoji{ font-size: 2rem; margin-bottom: 8px; }
.detail-card h4{ font-size: 1rem; margin-bottom: 4px; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.detail-sub{ font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 10px; }
.detail-percent{
  font-size: 1.8rem;
  color: var(--teal-600);
  font-family:'Black Han Sans',sans-serif;
}
.detail-percent span{ font-size: 0.85rem; font-family:'SBAggroL','Noto Sans KR',sans-serif; display:block; color: var(--ink-soft); margin-top:2px; }
.detail-reportno{
  margin-top: 10px;
  font-size: 0.72rem;
  color: var(--teal-600);
  font-weight: 700;
  letter-spacing: 0.3px;
  background: var(--mint-100);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
}

.bacteria-banner{
  background: linear-gradient(135deg, var(--teal-600), var(--mint-500));
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  color: #fff;
}
.bacteria-banner h3{
  font-size: 1.3rem;
  margin-bottom: 26px;
  font-family:'SBAggroL','Noto Sans KR',sans-serif;
  font-weight: 700;
}
.bacteria-banner h3 i{ margin-right: 8px; }
.bacteria-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.b-item{
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  padding: 20px;
}
.b-name{ font-weight: 700; font-size: 1.05rem; margin-bottom: 6px; }
.b-cause{ font-size: 0.82rem; opacity: 0.9; margin-bottom: 12px; }
.b-percent{ font-size: 1.3rem; font-family:'Black Han Sans',sans-serif; }

/* ============ SAFETY ============ */
.safety-section{ background: linear-gradient(180deg, var(--white), var(--mint-50)); }
.safety-flex{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items:center;
  text-align:left;
}
.safety-image img{
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.safety-list{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 18px;
  margin: 26px 0 20px;
}
.safety-list li{
  display:flex;
  align-items:center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-soft);
}
.safety-list i{ color: var(--mint-600); }
.safety-note{
  font-size: 0.85rem;
  color: var(--ink-soft);
  background: var(--mint-100);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
}
.safety-note strong{ color: var(--teal-600); }

/* ============ CERTS ============ */
.certs-section{ background: var(--white); }
.certs-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 46px;
}
.cert-card{
  background: var(--mint-50);
  border: 1px solid var(--mint-200);
  border-radius: var(--radius-md);
  padding: 26px 14px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.cert-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-soft); }
.cert-card i{ font-size: 1.7rem; color: var(--teal-500); margin-bottom: 12px; }
.cert-card h4{ font-size: 0.92rem; margin-bottom: 8px; line-height:1.3; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.cert-card p{ font-size: 0.82rem; color: var(--ink-soft); }
.cert-card p strong{ color: var(--teal-600); }
.cert-no{
  margin-top: 8px !important;
  font-size: 0.7rem !important;
  color: var(--teal-500) !important;
  font-weight: 700;
  opacity: 0.85;
  word-break: break-all;
}

.cert-showcase{
  display:flex;
  align-items:center;
  gap: 30px;
  background: var(--mint-100);
  border-radius: var(--radius-lg);
  padding: 24px 30px;
  max-width: 640px;
  margin: 0 auto 24px;
  text-align:left;
}
.cert-showcase-img{ width: 140px; border-radius: var(--radius-sm); box-shadow: 0 8px 20px rgba(0,0,0,0.1); }
.cert-showcase-text h4{ color: var(--teal-600); font-size: 1.1rem; margin-bottom: 8px; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.cert-showcase-text p{ font-size: 0.88rem; color: var(--ink-soft); }
.cert-disclaimer{ font-size: 0.8rem; color: var(--ink-soft); opacity: 0.85; max-width: 720px; margin:0 auto; }

/* ============ GALLERY ============ */
.gallery-section{ background: var(--mint-50); }
.gallery-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 180px;
  gap: 16px;
}
.gallery-item{
  position:relative;
  border-radius: var(--radius-md);
  overflow:hidden;
  box-shadow: var(--shadow-soft);
}
.gallery-item.span2{ grid-column: span 2; grid-row: span 2; }
.gallery-item img{
  width:100%; height:100%; object-fit:cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img{ transform: scale(1.08); }
.gallery-item figcaption{
  position:absolute;
  bottom:0; left:0; right:0;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.55));
  color:#fff;
  font-size: 0.85rem;
  font-weight:700;
  padding: 20px 14px 10px;
}

/* ============ PRICE ============ */
.price-section{ background: var(--white); }
.price-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.price-card{
  background: var(--mint-50);
  border-radius: var(--radius-lg);
  padding: 34px 22px;
  border: 2px solid var(--mint-200);
  position: relative;
  transition: transform 0.25s ease;
}
.price-card:hover{ transform: translateY(-8px); }
.price-card.best{
  background: linear-gradient(160deg, #fff, var(--mint-100));
  border-color: var(--teal-500);
  box-shadow: var(--shadow-soft);
  transform: scale(1.04);
}
.price-badge{
  position:absolute;
  top:-14px; left:50%;
  transform: translateX(-50%);
  background: var(--teal-500);
  color:#fff;
  font-size: 0.75rem;
  font-weight:700;
  padding: 6px 16px;
  border-radius: 999px;
  white-space:nowrap;
}
.price-card h3{ font-size: 1.1rem; margin-bottom: 14px; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.price-num{
  font-size: 1.9rem;
  color: var(--teal-600);
  margin-bottom: 6px;
  font-family:'Black Han Sans',sans-serif;
}
.price-num.small{ font-size: 1.1rem; margin-bottom:2px; }
.price-num span{ font-size: 1rem; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.price-note{ font-size: 0.82rem; color: var(--ink-soft); margin-bottom: 18px; }
.price-card .btn{ width:100%; padding: 12px 10px; font-size:0.92rem; }
.price-card.bulk{ display:flex; flex-direction:column; }

/* ============ BUY GUIDE ============ */
.buy-section{ background: linear-gradient(180deg, var(--mint-50), var(--white)); }
.buy-flex{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items:center;
  text-align:left;
}
.buy-options{ display:flex; flex-direction:column; gap: 16px; margin-top: 26px; }
.buy-option{
  display:flex;
  align-items:center;
  gap: 18px;
  background:#fff;
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.25s ease;
}
.buy-option:hover{ transform: translateX(6px); }
.buy-option h4{ font-size: 1rem; margin-bottom: 4px; font-family:'SBAggroL','Noto Sans KR',sans-serif; }
.buy-option p{ font-size: 0.85rem; color: var(--ink-soft); }
.buy-option > i:last-child{ margin-left:auto; color: var(--mint-500); }
.buy-icon{
  width: 48px; height:48px;
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  font-size: 1.3rem;
  color:#fff;
  flex-shrink:0;
}
.buy-icon.store{ background: var(--teal-500); }
.buy-icon.kakao{ background: var(--kakao); color: var(--kakao-text); }
.buy-icon.call{ background: var(--ink); }

.buy-image img{ border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); }

/* ============ FAQ ============ */
.faq-section{ background: var(--white); }
.faq-list{ text-align:left; max-width: 760px; margin: 0 auto; }
.faq-item{
  border-bottom: 1px solid var(--mint-200);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 20px 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  text-align:left;
}
.faq-q i{ color: var(--mint-500); transition: transform 0.3s ease; }
.faq-item.open .faq-q i{ transform: rotate(45deg); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition: max-height 0.35s ease;
}
.faq-a p{ padding: 0 6px 20px; color: var(--ink-soft); font-size: 0.92rem; }
.faq-item.open .faq-a{ max-height: 240px; }

/* ============ FOOTER ============ */
.site-footer{
  background: var(--ink);
  color: rgba(255,255,255,0.85);
  padding: 50px 24px 30px;
  text-align:center;
}
.footer-logo{
  height: 110px;
  margin: 0 auto 10px;
  background: #fff;
  padding: 10px 20px;
  border-radius: 24px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.footer-tagline{ font-weight:700; margin-bottom: 18px; color:#fff; }
.footer-info p{ font-size: 0.82rem; margin-bottom: 4px; opacity: 0.75; }
.footer-copy{ font-size: 0.78rem; opacity: 0.5; margin-top: 20px; }

/* ============ FLOATING CTA ============ */
.floating-cta{
  position: fixed;
  right: 22px;
  bottom: 22px;
  display:flex;
  flex-direction: column;
  gap: 12px;
  z-index: 400;
}
.fab{
  width: 58px; height:58px;
  border-radius: 50%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  font-size: 1.2rem;
  box-shadow: 0 8px 22px rgba(0,0,0,0.2);
  transition: transform 0.25s ease;
  position: relative;
}
.fab:hover{ transform: scale(1.08); }
.fab span{
  font-size: 0.55rem;
  font-weight:700;
  margin-top:2px;
}
.fab-kakao{ background: var(--kakao); color: var(--kakao-text); }
.fab-call{ background: var(--teal-500); color:#fff; }
.fab-top{
  background:#fff;
  color: var(--ink);
  border: 1px solid var(--mint-200);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}
.fab-top.visible{ opacity:1; pointer-events:auto; transform: translateY(0); }

/* ============ RESPONSIVE ============ */
@media (max-width: 980px){
  .mobile-br{ display:block; }
  .hero-inner{ grid-template-columns: 1fr; text-align:center; }
  .hero-title{ font-size: 2.3rem; }
  .hero-cta-group, .hero-badges{ justify-content:center; }
  .hero-image{ margin-top: 20px; }
  .power-grid, .detail-grid{ grid-template-columns: repeat(2,1fr); }
  .bacteria-grid{ grid-template-columns: 1fr; }
  .certs-grid{ grid-template-columns: repeat(3,1fr); }
  .price-grid{ grid-template-columns: repeat(2,1fr); }
  .price-card.best{ transform:none; grid-column: span 2; order:-1; }
  .safety-flex, .buy-flex{ grid-template-columns: 1fr; text-align:center; }
  .section-title.left, .section-desc.left{ text-align:center; margin-left:auto; margin-right:auto; }
  .safety-list{ text-align:left; }
  .buy-options{ text-align:left; }
  .problem-icons{ grid-template-columns: repeat(4,1fr); }
  .gallery-grid{ grid-template-columns: repeat(2,1fr); }
  .gallery-item.span2{ grid-column: span 2; grid-row: span 1; }
  .header-nav{ display:none; }
}

@media (max-width: 600px){
  .marquee-item{ font-size: 0.78rem; padding: 0 18px; gap: 6px; }
  .marquee-track{ animation-duration: 28s; }
  .section{ padding: 60px 18px; }
  .hero-section{ padding-top: 120px; }
  .hero-title{ font-size: 1.9rem; }
  .section-title{ font-size: 1.6rem; }
  .power-grid, .detail-grid, .problem-icons, .certs-grid, .price-grid{ grid-template-columns: repeat(2,1fr); }
  .price-card.best{ grid-column: span 2; }
  .safety-list{ grid-template-columns: 1fr; }
  .cert-showcase{ flex-direction:column; text-align:center; }
  .gallery-grid{ grid-template-columns: 1fr 1fr; grid-auto-rows: 140px; }
  .hero-float-card{ display:none; }
  .hero-cta-group .btn{ flex:1 1 auto; font-size:0.9rem; padding:12px 16px; }
  .floating-cta{ right: 14px; bottom: 14px; }
  .fab{ width: 50px; height:50px; font-size:1rem; }
}