/* =============================================
   273K — Cold Chain Maintenance
   신뢰 기반 현장 엔지니어 스타일
   ============================================= */

/* --- RESET & BASE --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* 메인 컬러: 깊고 신뢰감 있는 네이비/블루-그레이 */
  --navy:       #1a2640;
  --navy-light: #233050;
  --blue:       #1d5fc4;
  --blue-light: #2e72d9;
  --ice:        #e8f1fc;
  --red:        #c0392b;
  --red-light:  #e74c3c;
  --green:      #27ae60;
  --orange:     #e67e22;
  --white:      #ffffff;
  --off-white:  #f7f9fc;
  --gray-1:     #f0f3f8;
  --gray-2:     #dde3ee;
  --gray-3:     #a0abbe;
  --gray-4:     #6b7a96;
  --text:       #1a2640;
  --text-sub:   #445068;
  --text-light: #6b7a96;
  --border:     #d9e2f0;

  --shadow-sm:  0 2px 8px rgba(26,38,64,0.08);
  --shadow-md:  0 6px 24px rgba(26,38,64,0.12);
  --shadow-lg:  0 12px 48px rgba(26,38,64,0.16);

  --radius:     12px;
  --radius-lg:  20px;
  --font:       'Noto Sans KR', 'Inter', sans-serif;
  --transition: 0.22s ease;
  --max-w:      1160px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img  { max-width: 100%; height: auto; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }

/* --- LABELS & COMMON --- */
.label-sm {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 12px;
}
.label-sm.red { color: var(--red-light); }

.sec-head {
  text-align: center;
  margin-bottom: 60px;
}
.sec-head.light h2 { color: var(--white); }

.sec-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  color: var(--text);
}
.sec-head h2 strong { color: var(--blue); }
.sec-head.light h2 strong { color: #7ab4ff; }

.sec-desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== BUTTONS ===== */
.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--white);
  background: var(--blue);
  padding: 15px 30px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-main:hover {
  background: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(29,95,196,0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  background: transparent;
  padding: 15px 28px;
  border-radius: 50px;
  border: 1.5px solid rgba(255,255,255,0.35);
  transition: all var(--transition);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.6);
  color: #fff;
}

.btn-red {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  background: var(--red);
  padding: 16px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-red:hover {
  background: var(--red-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(192,57,43,0.4);
}

.w100 { width: 100%; justify-content: center; }

/* ===== BODY TEXT ===== */
.body-text {
  font-size: 0.97rem;
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 18px;
}
.body-text strong { color: var(--text); }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--blue);
  transition: gap var(--transition);
  margin-top: 8px;
}
.link-more:hover { gap: 14px; }

/* =============================================
   HEADER
   ============================================= */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(26,38,64,0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: box-shadow var(--transition);
}
#site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.nav-wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.logo-mark {
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.04em;
  line-height: 1;
  background: linear-gradient(135deg, #fff 0%, #8bbfff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-left: 1.5px solid rgba(255,255,255,0.2);
  padding-left: 12px;
}
.logo-ko {
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  letter-spacing: -0.01em;
}
.logo-en {
  font-size: 0.6rem;
  font-weight: 500;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.08em;
}

/* Nav */
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-list li a {
  font-size: 0.86rem;
  font-weight: 500;
  color: rgba(255,255,255,0.72);
  padding: 8px 14px;
  border-radius: 8px;
  transition: all var(--transition);
}
.nav-list li a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.nav-list li.nav-cta a {
  background: var(--red);
  color: #fff;
  font-weight: 700;
  border-radius: 50px;
  padding: 9px 20px;
}
.nav-list li.nav-cta a:hover {
  background: var(--red-light);
  box-shadow: 0 4px 16px rgba(192,57,43,0.4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: #fff; border-radius: 2px;
  transition: all var(--transition);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 25%;
  filter: grayscale(15%);
}
.hero-bg-dim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(15,24,48,0.92) 0%,
    rgba(15,24,48,0.82) 50%,
    rgba(15,24,48,0.55) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 140px 28px 100px;
  max-width: 700px;
  margin-left: max(28px, calc(50vw - 580px));
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  margin-bottom: 24px;
}
.hero-label .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--blue-light);
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

/* 히어로 타이틀 점 사인지 */
.hero-dot-wrap {
  position: relative;
  display: inline-block;
}
.hero-dot {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 0 10px rgba(255,255,255,0.9), 0 0 20px rgba(255,255,255,0.5);
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: translateX(-50%) scale(1); }
  50% { opacity: 0.6; transform: translateX(-50%) scale(1.4); }
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  color: rgba(255,255,255,0.72);
  line-height: 1.85;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}
.trust-item i { color: #7ab4ff; font-size: 0.9rem; }
.trust-sep {
  width: 1px; height: 18px;
  background: rgba(255,255,255,0.2);
}

/* =============================================
   STRIP (marquee)
   ============================================= */
.strip {
  background: var(--navy);
  padding: 14px 0;
  overflow: hidden;
  border-top: 3px solid var(--blue);
}
.strip-inner {
  display: inline-flex;
  gap: 52px;
  white-space: nowrap;
  animation: marquee 28s linear infinite;
  font-size: 0.84rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
}
.strip-inner em { color: #7ab4ff; font-style: normal; font-weight: 700; }
.dot-sep { color: rgba(255,255,255,0.25); }
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* =============================================
   INTRO SECTION
   ============================================= */
.section-intro {
  padding: 96px 0;
  background: var(--white);
}
.intro-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: center;
}
.intro-text .label-sm { display: block; }
.intro-text h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin-bottom: 28px;
}
.intro-text h2 strong { color: var(--blue); }

/* intro 이미지 스택 (새 레이아웃) */
.intro-img-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.intro-img-main {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.intro-img-main img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: center 30%;
  display: block;
  transition: transform 0.6s ease;
}
.intro-img-main:hover img { transform: scale(1.03); }
.intro-img-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(15,24,48,0.88));
  padding: 28px 18px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}
.intro-img-caption i { color: #7ab4ff; font-size: 1rem; }

.intro-compare {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 구 intro-cards 하위호환 */
.intro-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.intro-card {
  background: var(--gray-1);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  position: relative;
}
.intro-card.accent {
  background: var(--navy);
  border-color: var(--blue);
  color: white;
}
.intro-card.accent h4 { color: #fff; }
.intro-card.accent p  { color: rgba(255,255,255,0.8); }

.ic-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: rgba(29,95,196,0.1);
  line-height: 1;
  margin-bottom: 6px;
  letter-spacing: -0.04em;
}
.intro-card.accent .ic-num { color: rgba(255,255,255,0.08); }

.intro-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.intro-card p {
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.75;
}
.bad  { display: inline; color: var(--red); font-weight: 700; }
.good { display: inline; color: #27ae60; font-weight: 700; }

/* =============================================
   SERVICE
   ============================================= */
/* 서비스 현장 사진 배너 */
.svc-photo-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 52px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.svc-photo {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}
.svc-photo img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
  filter: brightness(0.88);
}
.svc-photo:hover img {
  transform: scale(1.05);
  filter: brightness(0.95);
}
.svc-photo-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(15,24,48,0.82));
  color: rgba(255,255,255,0.92);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 22px 14px 12px;
  letter-spacing: 0.02em;
}

/* ===== BRAND STORY ===== */
.section-brand-story {
  padding: 100px 0 80px;
  background: #fff;
  overflow: hidden;
}

/* 인트로 숫자 블록 */
.bs-intro {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 72px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.bs-temp-wrap {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  line-height: 1;
  position: relative;
  flex-shrink: 0;
}
.bs-temp-num {
  font-size: clamp(80px, 10vw, 128px);
  font-weight: 900;
  color: #0f1830;
  letter-spacing: -4px;
  line-height: 1;
}
.bs-temp-unit {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 900;
  background: linear-gradient(135deg, #38b6ff 0%, #1d5fc4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-top: 8px;
  line-height: 1;
}
.bs-temp-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(0,0,0,0.35);
  letter-spacing: 0.04em;
  line-height: 1.6;
  margin-top: 14px;
  margin-left: 8px;
  border-left: 2px solid #1d5fc4;
  padding-left: 10px;
}
.bs-intro-text .label-sm {
  color: #1d5fc4;
  margin-bottom: 14px;
}
.bs-intro-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: #0f1830;
  line-height: 1.25;
  margin-bottom: 20px;
}
.bs-intro-text h2 strong {
  color: #1d5fc4;
}
.bs-intro-text .body-text {
  font-size: 1rem;
  color: rgba(0,0,0,0.65);
  line-height: 1.9;
}
.bs-intro-text .body-text em {
  font-style: normal;
  color: #1d5fc4;
  font-weight: 600;
}
.bs-intro-text .body-text strong {
  color: #0f1830;
  font-weight: 700;
}

/* 코어 블록: 로고 + 키워드 */
.bs-core {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 72px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.bs-logo-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
}
.bs-logo-img {
  width: 100%;
  max-width: 220px;
  height: auto;
  filter: drop-shadow(0 8px 24px rgba(29,95,196,0.15));
}
.bs-logo-caption {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(0,0,0,0.45);
  text-align: center;
  line-height: 1.6;
}
.bs-degree {
  font-size: 2.5rem;
  color: #1d5fc4;
  font-weight: 700;
  line-height: 1;
}
.bs-keywords {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding-top: 8px;
}
.bs-kw-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.bs-kw-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, #eef4ff 0%, #dbe8ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #1d5fc4;
  flex-shrink: 0;
  margin-top: 2px;
}
.bs-kw-item strong {
  display: block;
  font-size: 1.02rem;
  font-weight: 700;
  color: #0f1830;
  margin-bottom: 6px;
}
.bs-kw-item p {
  font-size: 0.93rem;
  color: rgba(0,0,0,0.58);
  line-height: 1.75;
  margin: 0;
}

/* 브랜드 선언 (최상단으로 이동) */
.bs-manifesto {
  background: linear-gradient(135deg, #0f1830 0%, #1a2e5a 100%);
  border-radius: 20px;
  padding: 60px 56px;
  position: relative;
  overflow: hidden;
  margin-bottom: 72px;
}
.bs-manifesto::before {
  content: '273K';
  position: absolute;
  right: -20px;
  bottom: -30px;
  font-size: 160px;
  font-weight: 900;
  color: rgba(255,255,255,0.03);
  letter-spacing: -6px;
  pointer-events: none;
  line-height: 1;
}
.bs-manifesto-inner {
  position: relative;
  z-index: 1;
}
.bs-manifesto-logo {
  margin-bottom: 32px;
}
.bs-manifesto-logo-img {
  height: 72px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.bs-quote-line {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, #38b6ff, #1d5fc4);
  border-radius: 2px;
  margin-bottom: 28px;
}
.bs-quote {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  color: #fff;
  line-height: 1.35;
  margin: 0 0 28px;
  font-style: normal;
  border: none;
  padding: 0;
}
.bs-manifesto-body {
  font-size: 1rem;
  color: rgba(255,255,255,0.68);
  line-height: 1.9;
  margin-bottom: 32px;
  max-width: 680px;
}
.bs-manifesto-body strong {
  color: #fff;
  font-weight: 700;
}
.bs-values {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 4px;
  align-items: center;
}
.bs-values span {
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.04em;
}
.bs-values span.sep {
  color: rgba(255,255,255,0.2);
}

/* ====== SERVICE ====== */
.section-service {
  padding: 96px 0;
  background: var(--gray-1);
  border-top: 1px solid var(--border);
}

.svc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.svc-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  position: relative;
  transition: all var(--transition);
}
.svc-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.svc-card.main {
  background: var(--navy);
  border-color: var(--blue);
  color: white;
}
.svc-card.main h3 { color: #fff; }
.svc-card.main p  { color: rgba(255,255,255,0.75); }
.svc-card.main ul li { color: rgba(255,255,255,0.7); }
.svc-card.main ul li i { color: #7ab4ff; }

.main-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--blue-light);
  background: rgba(46,114,217,0.12);
  border: 1px solid rgba(46,114,217,0.3);
  padding: 3px 10px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.svc-num {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(29,95,196,0.08);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.04em;
}
.svc-card.main .svc-num { color: rgba(255,255,255,0.06); }

.svc-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--ice);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: var(--blue);
  margin-bottom: 18px;
}
.svc-card.main .svc-icon {
  background: rgba(46,114,217,0.15);
  color: #7ab4ff;
}

.svc-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.35;
}
.svc-card p {
  font-size: 0.86rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 18px;
}
.svc-card ul {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.svc-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-light);
  line-height: 1.5;
}
.svc-card ul li i {
  color: var(--green);
  font-size: 0.75rem;
  margin-top: 3px;
  flex-shrink: 0;
}

/* =============================================
   DIFF SECTION
   ============================================= */
.section-diff {
  padding: 96px 0;
  background: var(--navy);
}
.section-diff .sec-head { margin-bottom: 64px; }
.section-diff .label-sm { color: #7ab4ff; }

.diff-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
  margin-bottom: 72px;
}

.diff-visual { position: relative; }
.diff-img {
  width: 100%;
  border-radius: var(--radius-lg);
  filter: brightness(0.92);
  box-shadow: 0 16px 60px rgba(0,0,0,0.45);
}
.diff-badge {
  position: absolute;
  bottom: -18px;
  right: -16px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-md);
  max-width: 280px;
}
.diff-badge i {
  font-size: 1.4rem;
  color: var(--blue);
  flex-shrink: 0;
}
.diff-badge strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}
.diff-badge span {
  font-size: 0.75rem;
  color: var(--text-light);
  line-height: 1.4;
}

.diff-points {
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.diff-point {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.dp-icon {
  width: 50px; height: 50px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.15rem;
  color: #7ab4ff;
  flex-shrink: 0;
}
.dp-body h4 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.dp-body p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.85;
}

/* 비교표 */
.compare-section {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
}
.compare-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 28px;
  text-align: center;
}
.compare-wrap { overflow-x: auto; }
.compare-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.compare-table thead th {
  padding: 13px 20px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: left;
}
.compare-table thead th:first-child { color: rgba(255,255,255,0.4); }
.compare-table .col-old {
  color: rgba(255,255,255,0.45);
  background: rgba(255,255,255,0.03);
}
.compare-table .col-new {
  color: #7ab4ff;
  background: rgba(46,114,217,0.08);
  border-top: 2px solid var(--blue);
}
.compare-table tbody tr:hover td { background: rgba(255,255,255,0.04); }
.compare-table tbody td {
  padding: 13px 20px;
  font-size: 0.86rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.row-label {
  font-weight: 600;
  color: rgba(255,255,255,0.7);
}
.compare-table .col-old { color: rgba(255,255,255,0.4); }
.compare-table .col-old i { color: var(--red-light); margin-right: 6px; }
.compare-table .col-new { color: rgba(255,255,255,0.85); font-weight: 600; }
.compare-table .col-new i { color: var(--green); margin-right: 6px; }

/* =============================================
   RESULTS
   ============================================= */
.section-results {
  padding: 96px 0;
  background: var(--white);
}

.results-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.results-img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.results-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.result-stat.big {
  background: var(--navy);
  color: white;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}
.result-stat.big .rs-label { color: rgba(255,255,255,0.6); }
.result-stat.big .rs-value { color: white; }
.result-stat.big em { color: #7ab4ff; }
.result-stat.big .rs-note { color: rgba(255,255,255,0.5); }

.result-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.result-stat {
  background: var(--gray-1);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  transition: all var(--transition);
}
.result-stat:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-sm);
}
.rs-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-light);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.rs-value {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}
.rs-value em { color: var(--blue); font-style: normal; }
.rs-value em.green { color: var(--green); }
.rs-value del { color: var(--text-light); font-weight: 400; }
.rs-note {
  font-size: 0.78rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* =============================================
   PROCESS
   ============================================= */
.section-process {
  padding: 96px 0;
  background: var(--navy-light);
}
.section-process .sec-desc { color: rgba(255,255,255,0.55); }

.process-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 12px;
  align-items: start;
}
.proc-step {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px 22px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.proc-step::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.proc-step:hover {
  background: rgba(255,255,255,0.07);
  transform: translateY(-4px);
}
.proc-step:hover::after { transform: scaleX(1); }

.ps-num {
  font-size: 2.4rem;
  font-weight: 900;
  color: rgba(255,255,255,0.05);
  line-height: 1;
  margin-bottom: 4px;
  letter-spacing: -0.04em;
}
.ps-icon {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem;
  color: white;
  margin: 0 auto 18px;
}
.proc-step h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.proc-step p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
}
.proc-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.2);
  font-size: 1.1rem;
  padding-top: 72px;
}

/* =============================================
   COVERAGE
   ============================================= */
.section-coverage {
  padding: 96px 0;
  background: var(--off-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cov-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 72px;
  align-items: center;
}
.cov-map img {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  filter: drop-shadow(0 8px 32px rgba(29,95,196,0.2));
}
.cov-text h2 {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.cov-text p {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.85;
  margin-bottom: 24px;
}
.cov-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.cov-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-sub);
  font-weight: 500;
}
.cov-list li i { color: var(--blue); font-size: 0.78rem; }
.cov-list li .note { font-size: 0.8rem; color: var(--text-light); font-weight: 400; }

/* =============================================
   REFERENCE
   ============================================= */
.section-reference {
  padding: 96px 0;
  background: var(--white);
}

/* ===== DEFROST IMPACT ===== */
.defrost-impact {
  margin-top: 16px;
}

/* 헤드라인 */
.di-headline {
  text-align: center;
  margin-bottom: 56px;
}
.di-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #1d5fc4;
  background: #eef4ff;
  border: 1px solid #c5d9f7;
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 20px;
}
.di-headline h3 {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 900;
  color: #0f1830;
  line-height: 1.35;
  margin-bottom: 16px;
}
.di-headline h3 em {
  font-style: normal;
  color: #e53935;
}
.di-headline p {
  font-size: 0.97rem;
  color: rgba(0,0,0,0.55);
  line-height: 1.85;
}

/* Before / After 비교 */
.di-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  margin-bottom: 48px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
}
.di-before {
  background: #fff8f8;
  padding: 36px 32px;
  border-right: 1px solid rgba(0,0,0,0.06);
}
.di-after {
  background: #f4f9ff;
  padding: 36px 32px;
  border-left: 1px solid rgba(0,0,0,0.06);
}
.di-compare-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding: 5px 12px;
  border-radius: 6px;
  display: inline-block;
}
.di-compare-label.before {
  background: #fde8e8;
  color: #c62828;
}
.di-compare-label.after {
  background: #dbeeff;
  color: #1d5fc4;
}
.di-count-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
}
.di-count-num {
  font-size: clamp(2.8rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -2px;
}
.di-count-num.bad { color: #e53935; }
.di-count-num.good { color: #1d5fc4; }
.di-unit {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0;
}
.di-count-sub {
  font-size: 0.82rem;
  color: rgba(0,0,0,0.45);
  font-weight: 500;
}
.di-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.di-list li {
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}
.di-list.bad li { color: rgba(0,0,0,0.65); }
.di-list.bad i { color: #e53935; flex-shrink: 0; margin-top: 2px; }
.di-list.good li { color: rgba(0,0,0,0.7); }
.di-list.good i { color: #1d5fc4; flex-shrink: 0; margin-top: 2px; }
.di-list.good li strong { color: #1d5fc4; }

/* 중앙 화살표 */
.di-arrow-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  background: #0f1830;
  color: rgba(255,255,255,0.7);
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
  gap: 10px;
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.di-arrow-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #38b6ff, #1d5fc4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #fff;
}

/* 이미지 카드 행 */
.di-visual-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}
.di-visual-card {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
  background: #fff;
}
.di-visual-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: center;
  display: block;
}
.di-visual-caption {
  padding: 20px 22px;
}
.di-visual-caption strong {
  display: block;
  font-size: 0.97rem;
  font-weight: 700;
  color: #0f1830;
  margin-bottom: 6px;
}
.di-visual-caption p {
  font-size: 0.85rem;
  color: rgba(0,0,0,0.55);
  line-height: 1.7;
  margin: 0;
}

/* 수치 요약 바 */
.di-stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-around;
  background: #0f1830;
  border-radius: 16px;
  padding: 36px 40px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 24px;
}
.di-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.di-stat-num {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  color: #fff;
  line-height: 1;
  letter-spacing: -1px;
}
.di-stat-unit {
  font-size: 1rem;
  font-weight: 600;
  color: #38b6ff;
}
.di-stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  font-weight: 500;
  letter-spacing: 0.03em;
}
.di-stat-divider {
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.1);
}
.di-source {
  font-size: 0.75rem;
  color: rgba(0,0,0,0.35);
  text-align: right;
  margin: 0;
}
.di-spec {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: rgba(29,95,196,0.7);
  background: #eef4ff;
  border: 1px solid #c5d9f7;
  border-radius: 4px;
  padding: 1px 7px;
  margin-left: 8px;
  vertical-align: middle;
}
.pc-only { display: inline; }

/* ===== PARTNER LIST ===== */
.partner-list-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
  background: var(--navy-deep, #0b1527);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 36px 40px;
}
.partner-col-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-main, #1d5fc4);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 7px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding-bottom: 12px;
}
.partner-col-title i {
  font-size: 0.85rem;
  opacity: 0.8;
}
.partner-ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.partner-ul li {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.82);
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  gap: 8px;
}
.partner-ul li::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue-main, #1d5fc4);
  flex-shrink: 0;
}
.partner-ul li.partner-etc {
  color: rgba(255,255,255,0.35);
  font-size: 1rem;
  letter-spacing: 0.1em;
  border-bottom: none;
  padding-top: 10px;
}
.partner-ul li.partner-etc::before {
  display: none;
}

.ref-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.rtab {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-light);
  background: var(--gray-1);
  border: 1.5px solid var(--border);
  padding: 9px 22px;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
}
.rtab:hover,
.rtab.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.ref-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ref-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
}
.ref-card:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.ref-card.hidden { display: none; }

.ref-tag-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue);
  background: var(--ice);
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.ref-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.ref-card p {
  font-size: 0.86rem;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 14px;
}
.ref-card p strong { color: var(--navy); }
.ref-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
/* 레퍼런스 더 보기 바 */
.ref-more {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 0 4px;
  border-top: 1.5px dashed var(--border);
  margin-top: 4px;
}
.ref-more span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.02em;
}

.ref-chips span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--blue);
  background: var(--ice);
  border: 1px solid var(--gray-2);
  padding: 3px 10px;
  border-radius: 50px;
}

/* =============================================
   CONTACT
   ============================================= */
.section-contact {
  padding: 96px 0;
  background: var(--gray-1);
  border-top: 1px solid var(--border);
}
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.contact-left {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.c-info {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.c-info > i {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--white);
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem;
  color: var(--blue);
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.c-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 4px;
}
.c-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.6;
}
.c-val small { font-size: 0.8rem; color: var(--text-light); font-weight: 400; display: block; }
.c-val a { color: var(--text); }
.c-val a:hover { color: var(--blue); }

.c-assure {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 4px;
}
.c-assure > i {
  font-size: 1.3rem;
  color: var(--blue);
  flex-shrink: 0;
  margin-top: 2px;
}
.c-assure p {
  font-size: 0.86rem;
  color: var(--text-sub);
  line-height: 1.75;
}
.c-assure p strong { color: var(--text); }

/* FORM */
.contact-form, .insp-form {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-sm);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.fg {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 16px;
}
.fg label {
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--text-sub);
}
.fg label em { color: var(--red); font-style: normal; }
.fg input,
.fg select,
.fg textarea {
  width: 100%;
  background: var(--gray-1);
  border: 1.5px solid var(--border);
  border-radius: 9px;
  padding: 12px 15px;
  font-size: 0.9rem;
  color: var(--text);
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  -webkit-appearance: none;
}
.fg input::placeholder, .fg textarea::placeholder { color: var(--gray-3); }
.fg input:focus, .fg select:focus, .fg textarea:focus {
  border-color: var(--blue);
  background: #fff;
}
.fg textarea { resize: vertical; min-height: 110px; }
.fg select { cursor: pointer; }

/* =============================================
   INSPECTION
   ============================================= */
.section-inspection {
  padding: 96px 0;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.section-inspection::before {
  content: '273K';
  position: absolute;
  right: -40px; bottom: -40px;
  font-size: 18rem;
  font-weight: 900;
  color: rgba(255,255,255,0.02);
  pointer-events: none;
  letter-spacing: -0.04em;
  line-height: 1;
}

.insp-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}
.insp-left h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.22;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}
.insp-left p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.85;
  margin-bottom: 32px;
}
.insp-left p strong { color: white; }

.insp-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
}
.insp-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.8);
  font-weight: 500;
}
.insp-list li i { color: var(--green); font-size: 1.05rem; }

.insp-form {
  background: var(--white);
}
.insp-form h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 26px;
}

.form-note {
  font-size: 0.78rem;
  color: var(--text-light);
  text-align: center;
  margin-top: 10px;
}

/* =============================================
   FOOTER
   ============================================= */
#site-footer {
  background: #0e1728;
  padding: 72px 0 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 52px;
}
.ft-logo-wrap {
  margin-bottom: 14px;
}
.ft-logo-img {
  height: 56px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.ft-logo {
  font-size: 2rem;
  font-weight: 900;
  background: linear-gradient(135deg, #fff 0%, #8bbfff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
  letter-spacing: -0.04em;
}
.ft-brand p {
  font-size: 0.83rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.8;
}
.ft-links h5 {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.ft-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ft-links a {
  font-size: 0.86rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.ft-links a:hover { color: #fff; }
.ft-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
}
.ft-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.22);
}

/* =============================================
   FLOAT CTA
   ============================================= */
.float-cta {
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 999;
  width: 66px; height: 66px;
  border-radius: 50%;
  background: var(--red);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 0.64rem;
  font-weight: 700;
  box-shadow: 0 6px 28px rgba(192,57,43,0.45);
  transition: all var(--transition);
}
.float-cta i { font-size: 1.3rem; }
.float-cta:hover {
  background: var(--red-light);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 36px rgba(192,57,43,0.55);
}
.float-cta.hidden { opacity: 0; pointer-events: none; transform: translateY(16px); }

/* =============================================
   TOAST
   ============================================= */
.toast {
  position: fixed;
  bottom: 110px; right: 28px;
  z-index: 9999;
  background: var(--navy);
  color: white;
  padding: 14px 22px;
  border-radius: 10px;
  font-size: 0.87rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--green);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  pointer-events: none;
  max-width: 300px;
}
.toast.show { opacity: 1; transform: translateY(0); }

/* =============================================
   SCROLL REVEAL
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* =============================================
   RESPONSIVE — TABLET ≤ 1024px
   ============================================= */
@media (max-width: 1024px) {
  .intro-layout    { grid-template-columns: 1fr; gap: 48px; }
  .svc-photo-row   { grid-template-columns: 1fr 1fr; }
  .svc-photo:last-child { display: none; }
  .svc-grid        { grid-template-columns: repeat(2, 1fr); }
  .diff-layout     { grid-template-columns: 1fr; gap: 48px; }
  .diff-badge      { bottom: 16px; right: 16px; }
  .results-layout  { grid-template-columns: 1fr; }
  .cov-layout      { grid-template-columns: 1fr; gap: 48px; text-align: center; }
  .cov-list li     { justify-content: center; }
  .cov-text .btn-main { display: inline-flex; }
  .ref-grid        { grid-template-columns: repeat(2, 1fr); }
  .contact-layout  { grid-template-columns: 1fr; }
  .insp-layout     { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid     { grid-template-columns: 1fr 1fr; gap: 36px; }
  .process-row     { grid-template-columns: 1fr 1fr; gap: 20px; }
  .proc-arrow      { display: none; }
  .partner-list-wrap { grid-template-columns: repeat(2, 1fr); gap: 20px; padding: 28px 24px; }
  /* brand story tablet */
  .bs-intro { grid-template-columns: 1fr; gap: 36px; }
  .bs-temp-wrap { justify-content: flex-start; }
  .bs-core { grid-template-columns: 1fr; gap: 40px; }
  .bs-logo-block { flex-direction: row; align-items: center; justify-content: flex-start; }
  .bs-logo-img { max-width: 140px; }
  .bs-manifesto { padding: 44px 36px; }
}

/* =============================================
   RESPONSIVE — MOBILE ≤ 768px
   ============================================= */
@media (max-width: 768px) {
  /* Nav */
  .nav-toggle { display: flex; }
  .nav-list {
    position: fixed;
    top: 66px; left: 0; right: 0;
    background: rgba(26,38,64,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 2px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-110%);
    opacity: 0;
    transition: all 0.32s cubic-bezier(0.4,0,0.2,1);
    pointer-events: none;
  }
  .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-list li a { padding: 13px 14px; font-size: 0.93rem; }
  .nav-list li.nav-cta { margin-top: 8px; }
  .nav-list li.nav-cta a { text-align: center; border-radius: 10px; }

  /* Sections */
  .hero h1 { font-size: 2.3rem; }
  .hero-btns { flex-direction: column; }
  .btn-main, .btn-ghost { justify-content: center; }

  .svc-grid        { grid-template-columns: 1fr; }
  .svc-photo-row   { grid-template-columns: 1fr; }
  .svc-photo:last-child { display: block; }
  .svc-photo:nth-child(2) { display: none; }
  .ref-grid        { grid-template-columns: 1fr; }
  .process-row     { grid-template-columns: 1fr; }
  .form-row        { grid-template-columns: 1fr; }
  .footer-grid     { grid-template-columns: 1fr; }
  .contact-form, .insp-form { padding: 26px 20px; }
  .compare-section { padding: 28px 20px; }
  .partner-list-wrap { grid-template-columns: 1fr 1fr; gap: 16px; padding: 24px 18px; }
  /* defrost impact mobile */
  .di-compare { grid-template-columns: 1fr; }
  .di-arrow-wrap { flex-direction: row; padding: 16px 24px; justify-content: center; gap: 12px; }
  .di-before, .di-after { border-right: none; border-left: none; border-bottom: 1px solid rgba(0,0,0,0.06); }
  .di-visual-row { grid-template-columns: 1fr; }
  .di-stats-bar { padding: 28px 20px; }
  .di-stat-divider { width: 40px; height: 1px; }
  .pc-only { display: none; }
  /* brand story mobile */
  .bs-temp-num { font-size: 72px; }
  .bs-temp-unit { font-size: 36px; }
  .bs-intro { gap: 24px; margin-bottom: 48px; padding-bottom: 40px; }
  .bs-core { gap: 28px; margin-bottom: 48px; padding-bottom: 40px; }
  .bs-logo-block { flex-direction: column; align-items: flex-start; }
  .bs-logo-img { max-width: 120px; }
  .bs-manifesto { padding: 32px 24px; }
  .bs-quote { font-size: 1.4rem; }
  .bs-manifesto::before { font-size: 100px; }

  .hero-trust { gap: 14px; }
  .trust-sep  { display: none; }

  .diff-badge { position: relative; bottom: auto; right: auto; margin-top: 12px; }

  .float-cta  { bottom: 20px; right: 18px; width: 58px; height: 58px; }
  .toast      { right: 14px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .cov-layout { gap: 32px; }
  .insp-layout { gap: 36px; }
  .footer-grid { gap: 28px; }
  .result-row  { grid-template-columns: 1fr; }
}