/* =========================================
   힘펠 0529D – Dark Industrial Theme
   ========================================= */

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

:root {
  --amber:     #f59e0b;
  --amber-d:   #d97706;
  --amber-l:   #fcd34d;
  --green:     #10b981;
  --dark:      #f0f4f8;
  --card:      #ffffff;
  --card-2:    #f8f9fc;
  --card-3:    #eef1f6;
  --border:    #e2e8f0;
  --border-a:  rgba(245,158,11,.5);
  --gray:      #9ca3af;
  --text:      #1a1a2e;
  --text-dim:  #64748b;
  --white:     #ffffff;
  --shadow:    0 4px 20px rgba(0,0,0,.08);
  --radius:    14px;
  --radius-sm: 8px;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--dark);
}

img { max-width: 100%; height: auto; display: block; }
a   { text-decoration: none; color: inherit; }
ul  { list-style: none; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 90px 0; }
.section-sm { padding: 60px 0; }

/* ---- 섹션 헤더 ---- */
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .label {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245,158,11,.12);
  border: 1px solid var(--border-a);
  color: var(--amber);
  font-size: .72rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 40px;
  margin-bottom: 16px;
}
.section-head .label::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.section-head h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 900; line-height: 1.25; color: var(--white);
  margin-bottom: 14px;
}
.section-head h2 em { font-style: normal; color: var(--amber); }
.section-head p { color: var(--text-dim); font-size: 1rem; max-width: 520px; margin: 0 auto; }

/* =========================================
   HEADER / NAV
   ========================================= */
#site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

.header-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  height: 66px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 40px; height: 40px;
  background: var(--amber);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: #000; font-size: 1.15rem; font-weight: 900;
}
.logo-text { line-height: 1.25; }
.logo-text strong { display: block; font-size: 1rem; font-weight: 800; color: var(--text); }
.logo-text span   { font-size: .68rem; color: var(--gray); }

.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-menu a {
  font-size: .9rem; font-weight: 600; color: #374151;
  transition: color .2s; position: relative; padding-bottom: 2px;
}
.nav-menu a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--amber);
  transition: width .25s;
}
.nav-menu a:hover { color: var(--white); }
.nav-menu a:hover::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-tel { font-weight: 800; font-size: .95rem; color: var(--amber); }
.header-tel span { display: block; font-size: .62rem; font-weight: 400; color: var(--gray); text-align: center; }
.btn-consult {
  background: var(--amber); color: #000;
  padding: 8px 20px; border-radius: var(--radius-sm);
  font-size: .88rem; font-weight: 800;
  transition: background .2s, transform .15s;
}
.btn-consult:hover { background: var(--amber-l); transform: translateY(-1px); }

.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: #374151; margin: 5px 0; transition: all .3s;
}

/* =========================================
   HERO SLIDESHOW
   ========================================= */
#hero-slide {
  background: #0b0f1a;
  padding: 0;
  position: relative;
}
#hero-slide::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, #0b0f1a);
  pointer-events: none; z-index: 2;
}
.hero-slide-wrap {
  position: relative; max-width: 520px;
  margin: 0 auto; overflow: hidden;
}
.hero-slide { display: none; }
.hero-slide.active { display: block; }
.hero-slide img {
  width: 100%; aspect-ratio: 3/4;
  object-fit: cover; display: block;
}
.hero-slide-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(245,158,11,.18);
  border: 1px solid rgba(245,158,11,.4);
  color: var(--amber); border-radius: 50%;
  width: 48px; height: 48px; font-size: 1.6rem;
  cursor: pointer; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s, border-color .2s;
}
.hero-slide-btn:hover { background: rgba(245,158,11,.4); border-color: var(--amber); }
.hero-slide-prev { left: 16px; }
.hero-slide-next { right: 16px; }
.hero-slide-dots {
  position: absolute; bottom: 22px; left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 10;
}
.hero-slide-dot {
  width: 28px; height: 3px; border-radius: 2px;
  background: rgba(255,255,255,.3); cursor: pointer;
  transition: background .25s, width .25s;
}
.hero-slide-dot.active { background: var(--amber); width: 44px; }
@media (max-width: 768px) {
  .hero-slide-btn { width: 38px; height: 38px; font-size: 1.2rem; }
}

/* =========================================
   STATS BAR
   ========================================= */
#trust-bar {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}
.stats-row {
  display: flex; align-items: center;
  justify-content: center; gap: 0; flex-wrap: wrap;
}
.stat-item {
  display: flex; flex-direction: column; align-items: center;
  padding: 0 40px; gap: 4px;
}
.stat-num {
  font-size: 2rem; font-weight: 900; color: var(--amber); line-height: 1;
}
.stat-num span { font-size: 1rem; font-weight: 700; }
.stat-label { font-size: .72rem; color: var(--text-dim); letter-spacing: .05em; }
.stat-divider {
  width: 1px; height: 40px;
  background: var(--border);
}
@media (max-width: 640px) {
  .stat-item { padding: 12px 20px; }
  .stat-divider { display: none; }
  .stats-row { gap: 4px; }
}

/* =========================================
   PRODUCTS — 가로 행 리스트
   ========================================= */
#products { background: var(--card); }

.prd-list { display: flex; flex-direction: column; gap: 16px; }

.prd-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center; gap: 28px;
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: border-color .25s, box-shadow .25s;
}
.prd-row:hover {
  border-color: var(--border-a);
  box-shadow: 0 8px 32px rgba(245,158,11,.08);
}
.prd-icon-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-align: center;
}
.prd-icon { font-size: 2.8rem; line-height: 1; }
.prd-tag {
  display: inline-block;
  background: rgba(245,158,11,.12); color: var(--amber);
  border: 1px solid rgba(245,158,11,.25);
  font-size: .65rem; font-weight: 700; padding: 2px 10px; border-radius: 20px;
  white-space: nowrap;
}
.prd-content h3 { font-size: 1.1rem; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.prd-content p  { font-size: .87rem; color: var(--text-dim); line-height: 1.65; margin-bottom: 14px; }
.prd-specs {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.prd-specs span {
  font-size: .72rem; color: var(--text-dim);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 20px;
}
.prd-cta {
  flex-shrink: 0;
  background: var(--amber); color: #000;
  font-size: .85rem; font-weight: 800;
  padding: 10px 22px; border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background .2s, transform .15s;
}
.prd-cta:hover { background: var(--amber-l); transform: translateY(-1px); }

@media (max-width: 768px) {
  .prd-row { grid-template-columns: 1fr; gap: 16px; padding: 22px; }
  .prd-icon-wrap { flex-direction: row; justify-content: flex-start; }
  .prd-cta { align-self: flex-start; }
}

/* =========================================
   SERVICES — 4열 카드
   ========================================= */
#services { background: var(--dark); }

.svc-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.svc-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  box-shadow: var(--shadow);
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.svc-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-a);
  box-shadow: 0 12px 32px rgba(245,158,11,.1);
}
.svc-icon {
  font-size: 2.2rem; margin-bottom: 14px; line-height: 1;
}
.svc-card h3 {
  font-size: 1rem; font-weight: 800; color: var(--text);
  margin-bottom: 10px; line-height: 1.35;
}
.svc-card p {
  font-size: .84rem; color: var(--text-dim);
  line-height: 1.7; margin-bottom: 16px;
}
.svc-list {
  display: flex; flex-direction: column; gap: 6px;
  border-top: 1px solid var(--border); padding-top: 14px;
}
.svc-list li {
  font-size: .8rem; color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
}
.svc-list li::before {
  content: ''; flex-shrink: 0;
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--amber);
}

@media (max-width: 900px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .svc-grid { grid-template-columns: 1fr; } }

/* =========================================
   WHY — 2x2 카드 그리드
   ========================================= */
#why { background: var(--dark); }

.why-grid2 {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.why-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  position: relative;
  transition: border-color .25s, transform .25s, box-shadow .25s;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.why-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--amber-d));
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s;
}
.why-card:hover { border-color: var(--border-a); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(245,158,11,.1); }
.why-card:hover::before { transform: scaleX(1); }
.why-card-num {
  position: absolute; top: 16px; right: 20px;
  font-size: 2.5rem; font-weight: 900;
  color: rgba(245,158,11,.12); line-height: 1;
}
.why-card-icon { font-size: 2rem; margin-bottom: 16px; }
.why-card h4 { font-size: 1rem; font-weight: 800; color: var(--white); margin-bottom: 10px; }
.why-card p  { font-size: .85rem; color: var(--text-dim); line-height: 1.7; }

@media (max-width: 900px) { .why-grid2 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .why-grid2 { grid-template-columns: 1fr; } }

/* =========================================
   PROCESS — 세로 타임라인
   ========================================= */
#process { background: var(--card); }

.timeline { max-width: 680px; margin: 0 auto; }
.tl-item {
  display: flex; gap: 24px; position: relative;
}
.tl-left {
  display: flex; flex-direction: column; align-items: center; flex-shrink: 0;
}
.tl-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(245,158,11,.12);
  border: 2px solid var(--amber);
  color: var(--amber); font-size: .78rem; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.tl-line {
  width: 2px; flex: 1; min-height: 32px;
  background: linear-gradient(to bottom, var(--amber), rgba(245,158,11,.1));
  margin: 6px 0;
}
.tl-body {
  padding-bottom: 36px;
  display: flex; flex-direction: column; gap: 6px;
}
.tl-last .tl-body { padding-bottom: 0; }
.tl-icon { font-size: 1.4rem; }
.tl-body h4 { font-size: 1.05rem; font-weight: 800; color: var(--white); }
.tl-body p  { font-size: .88rem; color: var(--text-dim); line-height: 1.7; }

/* =========================================
   CASES — 탭 + 쇼케이스 레이아웃
   ========================================= */
#cases { background: var(--dark); }

/* 탭 버튼 */
.case-tabs {
  display: flex; gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 36px;
}
.case-tab {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 36px 16px 28px;
  background: none; border: none; cursor: pointer;
  position: relative; transition: background .2s;
}
.case-tab::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--amber);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s;
}
.case-tab.active::after { transform: scaleX(1); }
.case-tab:hover { background: rgba(0,0,0,.03); }
.ctab-num {
  font-size: .68rem; font-weight: 800; letter-spacing: .12em;
  color: var(--amber); background: rgba(245,158,11,.1);
  border: 1px solid rgba(245,158,11,.25);
  padding: 3px 10px; border-radius: 20px;
}
.case-tab:not(.active) .ctab-num { color: var(--gray); background: rgba(0,0,0,.04); border-color: var(--border); }
.ctab-txt {
  font-size: 1rem; font-weight: 700;
  color: var(--text); transition: color .2s;
}
.case-tab:not(.active) .ctab-txt { color: var(--text-dim); }

/* 패널 */
.case-panel { display: none; }
.case-panel.active { display: block; }

/* 쇼케이스 레이아웃 */
.case-showcase {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: start;
}

/* 메인 사진 */
.case-main-photo {
  position: relative; border-radius: var(--radius);
  overflow: hidden; cursor: pointer;
  border: 1px solid var(--border);
  aspect-ratio: 4/3;
}
.case-main-photo img {
  width: 100%; height: 100%; object-fit: cover;
  display: block; transition: transform .4s;
}
.case-main-photo:hover img { transform: scale(1.03); }
.case-main-hover {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.0); display: flex;
  align-items: center; justify-content: center;
  transition: background .3s;
}
.case-main-hover span {
  background: rgba(245,158,11,.9); color: #000;
  font-size: .85rem; font-weight: 700;
  padding: 8px 20px; border-radius: 30px;
  opacity: 0; transform: translateY(8px);
  transition: opacity .3s, transform .3s;
}
.case-main-photo:hover .case-main-hover { background: rgba(0,0,0,.25); }
.case-main-photo:hover .case-main-hover span { opacity: 1; transform: none; }

/* 우측 패널 */
.case-aside {
  display: flex; flex-direction: column; gap: 20px;
}
.case-aside-info {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.case-aside-tag {
  display: inline-block;
  background: rgba(245,158,11,.1); color: var(--amber);
  border: 1px solid rgba(245,158,11,.25);
  font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  padding: 3px 12px; border-radius: 20px; margin-bottom: 12px;
}
.case-aside-info h3 {
  font-size: 1.3rem; font-weight: 900; color: var(--white);
  line-height: 1.3; margin-bottom: 12px;
}
.case-aside-info p {
  font-size: .88rem; color: var(--text-dim);
  line-height: 1.75; margin-bottom: 16px;
}
.case-features {
  display: flex; flex-direction: column; gap: 8px;
}
.case-features li {
  display: flex; align-items: center; gap: 10px;
  font-size: .84rem; color: var(--text-dim);
}
.case-features li::before {
  content: ''; flex-shrink: 0;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--amber);
}

/* 썸네일 그리드 */
.case-thumbs {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
}
.case-thumb {
  aspect-ratio: 1; overflow: hidden; border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color .2s, opacity .2s;
  opacity: .5;
}
.case-thumb.active { border-color: var(--amber); opacity: 1; }
.case-thumb:hover  { opacity: .85; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 반응형 */
@media (max-width: 900px) {
  .case-showcase { grid-template-columns: 1fr; }
  .case-thumbs { grid-template-columns: repeat(5, 1fr); }
  .case-tab { padding: 14px 20px; }
}
@media (max-width: 480px) {
  .case-thumbs { grid-template-columns: repeat(4, 1fr); }
  .ctab-txt { font-size: .88rem; }
}

/* 라이트박스 */
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.95);
  flex-direction: column; align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lb-main {
  position: relative; display: flex; align-items: center; justify-content: center;
  width: 100%; flex: 1; min-height: 0; padding: 0 60px;
}
.lb-main img { max-width: 100%; max-height: 80vh; object-fit: contain; border-radius: 6px; display: block; }
.lb-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(245,158,11,.15); border: 1px solid rgba(245,158,11,.4);
  color: var(--amber); width: 44px; height: 44px; border-radius: 50%;
  font-size: 1.3rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.lb-arrow:hover { background: rgba(245,158,11,.35); }
.lb-prev { left: 10px; }
.lb-next { right: 10px; }
.lb-close {
  position: fixed; top: 16px; right: 20px;
  background: none; border: none; color: rgba(255,255,255,.6);
  font-size: 2rem; cursor: pointer; line-height: 1; z-index: 10000;
  transition: color .2s;
}
.lb-close:hover { color: #fff; }
.lb-footer {
  width: 100%; padding: 10px 16px 16px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  overflow-x: auto; scrollbar-width: none;
}
.lb-footer::-webkit-scrollbar { display: none; }
.lb-dot {
  flex: 0 0 64px; aspect-ratio: 4/3; overflow: hidden; border-radius: 4px;
  cursor: pointer; opacity: .35; border: 2px solid transparent;
  transition: opacity .2s, border-color .2s;
}
.lb-dot.active { opacity: 1; border-color: var(--amber); }
.lb-dot:hover  { opacity: .75; }
.lb-dot img    { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }
.lb-dot-play {
  width: 100%; height: 100%;
  background: #0b0f1a; display: flex; align-items: center; justify-content: center;
  color: var(--amber); font-size: 1.4rem;
}
.lb-vid { display: none; max-width: 100%; max-height: 80vh; border-radius: 6px; outline: none; }
.lb-counter {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.55); font-size: .82rem;
}

/* =========================================
   REVIEWS — Featured + 미니 카드
   ========================================= */
#reviews { background: var(--card); }

.review-layout {
  display: grid; grid-template-columns: 1fr 380px; gap: 20px; align-items: start;
}
.review-featured {
  background: var(--card-2);
  border: 1px solid var(--border-a);
  border-radius: var(--radius);
  padding: 40px 36px;
  position: relative;
}
.rf-quote {
  font-size: 6rem; line-height: .7;
  color: var(--amber); opacity: .3;
  font-family: Georgia, serif;
  margin-bottom: 16px;
}
.rf-text {
  font-size: 1.05rem; color: var(--text); line-height: 1.8;
  margin-bottom: 28px; font-style: italic;
}
.rf-meta { display: flex; align-items: center; gap: 14px; }
.rf-stars { color: var(--amber); font-size: 1rem; letter-spacing: 2px; margin-left: auto; }

.review-list { display: flex; flex-direction: column; gap: 12px; }
.review-mini {
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  transition: border-color .2s;
}
.review-mini:hover { border-color: var(--border-a); }
.review-mini p { font-size: .85rem; color: var(--text-dim); line-height: 1.7; margin: 8px 0 14px; }
.review-mini-meta { display: flex; align-items: center; gap: 10px; }

.review-stars { color: var(--amber); font-size: .82rem; letter-spacing: 2px; }
.review-avatar {
  width: 36px; height: 36px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-d) 100%);
  display: flex; align-items: center; justify-content: center;
  color: #000; font-weight: 900; font-size: .85rem;
}
.review-info strong { display: block; font-size: .85rem; font-weight: 700; color: var(--white); }
.review-info span   { font-size: .72rem; color: var(--gray); }

@media (max-width: 900px) { .review-layout { grid-template-columns: 1fr; } }

/* =========================================
   Q&A — 2열 레이아웃
   ========================================= */
#qna { background: var(--dark); }

.qna-layout {
  display: grid; grid-template-columns: 260px 1fr; gap: 56px; align-items: start;
  margin-bottom: 24px;
}
.qna-head-col { position: sticky; top: 86px; }
.qna-head-col .label { margin-bottom: 14px; }
.qna-head-col h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); font-weight: 900; color: var(--white); line-height: 1.25; margin-bottom: 14px; }
.qna-head-col p  { font-size: .9rem; color: var(--text-dim); line-height: 1.75; margin-bottom: 24px; }
.qna-cta-btn {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--amber); font-size: .88rem; font-weight: 700;
  border-bottom: 1px solid rgba(245,158,11,.4);
  padding-bottom: 2px;
  transition: gap .2s, border-color .2s;
}
.qna-cta-btn:hover { gap: 12px; border-color: var(--amber); }

.qna-list { display: flex; flex-direction: column; gap: 10px; }
.qna-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s;
}
.qna-item:hover { border-color: var(--border-a); }
.qna-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 20px 22px;
  background: none; border: none; cursor: pointer; text-align: left;
  font-size: .97rem; font-weight: 700; color: var(--text);
  transition: background .15s;
}
.qna-q:hover { background: rgba(245,158,11,.04); }
.qna-icon {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: rgba(245,158,11,.12); border: 1px solid rgba(245,158,11,.3);
  color: var(--amber);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; line-height: 1; transition: transform .3s, background .2s;
}
.qna-item.open .qna-icon { transform: rotate(45deg); background: var(--amber); color: #000; border-color: var(--amber); }
.qna-a {
  max-height: 0; overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 22px;
}
.qna-item.open .qna-a { max-height: 300px; padding: 0 22px 20px; }
.qna-a p { color: var(--text-dim); line-height: 1.8; font-size: .92rem; }
.qna-item.qna-hidden { display: none; }
.qna-more-wrap { text-align: center; margin-top: 24px; }
#btnQnaMore {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 30px; border-radius: var(--radius-sm);
  border: 1px solid rgba(245,158,11,.4);
  background: rgba(245,158,11,.08);
  color: var(--amber); font-size: .92rem; font-weight: 700;
  cursor: pointer; transition: background .2s, border-color .2s;
}
#btnQnaMore:hover { background: rgba(245,158,11,.18); border-color: var(--amber); }
#qnaMoreArrow { transition: transform .3s; display: inline-block; }
#btnQnaMore.open #qnaMoreArrow { transform: rotate(180deg); }

/* =========================================
   CTA BAND — 좌우 분할
   ========================================= */
#cta-band {
  background: linear-gradient(135deg, #0b0f1a 0%, #1a1508 50%, #0b0f1a 100%);
  border-top: 1px solid var(--border-a);
  border-bottom: 1px solid var(--border-a);
  padding: 80px 0;
  position: relative; overflow: hidden;
}
#cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(245,158,11,.07) 0%, transparent 65%);
  pointer-events: none;
}
.cta-inner {
  display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center;
  position: relative;
}
.cta-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(245,158,11,.12); border: 1px solid var(--border-a);
  color: var(--amber); font-size: .72rem; font-weight: 700;
  padding: 5px 14px; border-radius: 40px;
  margin-bottom: 18px;
}
.cta-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.cta-text h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 900; color: var(--white); line-height: 1.3; margin-bottom: 14px; }
.cta-text h2 em { font-style: normal; color: var(--amber); }
.cta-text p  { font-size: .95rem; color: var(--text-dim); line-height: 1.75; }

.cta-contact {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  flex-shrink: 0;
}
.cta-tel {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: var(--amber); color: #000;
  padding: 20px 36px; border-radius: var(--radius);
  text-align: center;
  transition: background .2s, transform .2s, box-shadow .2s;
  box-shadow: 0 6px 28px rgba(245,158,11,.35);
}
.cta-tel:hover { background: var(--amber-l); transform: translateY(-2px); box-shadow: 0 10px 36px rgba(245,158,11,.45); }
.cta-tel-label { font-size: .72rem; font-weight: 700; opacity: .7; }
.cta-tel-num   { font-size: 1.5rem; font-weight: 900; }
.cta-tel-time  { font-size: .7rem; opacity: .65; }
.cta-divider { font-size: .78rem; color: var(--gray); }
.btn-cta-outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border-a);
  padding: 12px 28px; border-radius: var(--radius-sm);
  font-size: .9rem; font-weight: 700; width: 100%; text-align: center;
  transition: border-color .2s, background .2s, color .2s;
}
.btn-cta-outline:hover { border-color: var(--amber); background: rgba(245,158,11,.08); color: var(--white); }

@media (max-width: 768px) {
  .cta-inner { grid-template-columns: 1fr; gap: 36px; }
  .cta-contact { width: 100%; }
  .qna-layout { grid-template-columns: 1fr; gap: 32px; }
  .qna-head-col { position: static; }
}

/* =========================================
   FOOTER
   ========================================= */
#site-footer {
  background: #111827; color: rgba(255,255,255,.7);
  padding: 56px 0 28px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 50px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  margin-bottom: 28px;
}
.footer-logo  { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo .logo-mark { width: 36px; height: 36px; font-size: 1rem; }
.footer-logo strong { font-size: 1rem; color: #fff; font-weight: 800; }
.footer-desc { font-size: .86rem; line-height: 1.75; color: rgba(255,255,255,.6); margin-bottom: 20px; }
.footer-contact a {
  display: flex; align-items: center; gap: 8px;
  font-size: .88rem; margin-bottom: 8px; color: rgba(255,255,255,.7);
  transition: color .2s;
}
.footer-contact a:hover { color: var(--amber); }
.footer-nav h5 {
  font-size: .78rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: rgba(255,255,255,.4);
  margin-bottom: 16px;
}
.footer-nav ul li { margin-bottom: 10px; }
.footer-nav ul a  { font-size: .86rem; color: rgba(255,255,255,.65); transition: color .2s; }
.footer-nav ul a:hover { color: var(--amber); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: .78rem; color: rgba(255,255,255,.35);
}
.bizinfo { display: flex; gap: 20px; flex-wrap: wrap; }
.bizinfo span { position: relative; }
.bizinfo span:not(:last-child)::after {
  content: '|'; position: absolute; right: -10px; color: rgba(255,255,255,.15);
}

/* =========================================
   FLOATING CONTACT
   ========================================= */
.float-contact {
  position: fixed; right: 24px; bottom: 32px;
  display: flex; flex-direction: column; gap: 12px; z-index: 800;
}
.float-btn {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  transition: transform .2s, box-shadow .2s;
  cursor: pointer;
}
.float-btn:hover { transform: translateY(-3px) scale(1.08); box-shadow: 0 8px 28px rgba(0,0,0,.5); }
.float-call  { background: var(--amber); color: #000; }
.float-kakao { background: #fee500; color: #3c1e1e; }
.float-top   { background: var(--card-3); color: var(--text); font-size: 1rem; border: 1px solid var(--border); }

/* =========================================
   MOBILE NAV OVERLAY
   ========================================= */
.mobile-nav {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,.6);
}
.mobile-nav.open { display: flex; }
.mobile-nav-panel {
  background: #fff; width: 280px; height: 100%;
  padding: 30px 24px; display: flex; flex-direction: column; gap: 8px;
  box-shadow: 4px 0 32px rgba(0,0,0,.15);
  border-right: 1px solid var(--border);
}
.mobile-nav-panel .close-btn {
  align-self: flex-end; background: none; border: none;
  font-size: 1.6rem; cursor: pointer; padding: 4px; color: #374151;
}
.mobile-nav-panel a {
  display: block; padding: 12px 0; font-size: 1rem; font-weight: 600;
  border-bottom: 1px solid var(--border); color: #374151;
  transition: color .2s;
}
.mobile-nav-panel a:hover { color: var(--amber); }
.mobile-nav-panel .tel-row {
  margin-top: 20px;
  background: rgba(245,158,11,.1); border: 1px solid var(--border-a);
  border-radius: var(--radius-sm); padding: 14px 16px; text-align: center;
}
.mobile-nav-panel .tel-row strong { display: block; color: var(--amber); font-size: 1.1rem; }

/* =========================================
   ANIMATIONS (IntersectionObserver)
   ========================================= */
.product-card, .reason-item, .step, .case-card, .review-card {
  opacity: 0; transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}
.product-card.visible, .reason-item.visible, .step.visible,
.case-card.visible, .review-card.visible {
  opacity: 1; transform: none;
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .process-steps::before { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .nav-menu, .header-cta .btn-consult { display: none; }
  .hamburger { display: block; }
  .why-grid { grid-template-columns: 1fr; }
  .why-image { display: none; }
  .product-grid { grid-template-columns: 1fr; }
  .case-body { flex-direction: column; }
  .case-hero { flex: none; width: 100%; }
  .case-gallery { grid-template-columns: repeat(4, 1fr); }
  .lb-dot { flex: 0 0 52px; }
  .review-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .trust-items { gap: 20px; }
}

@media (max-width: 480px) {
  .case-sub { display: none; }
  .case-gallery { grid-template-columns: repeat(3, 1fr); }
  .lb-dot { flex: 0 0 44px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
}