/* ================================================================
   ADD ON PRODUCT  |  addon.css
   solution.css / product.css 의존 없이 독립 동작
   ================================================================ */


/* ================================================================
   공통 (LX + PDF Viewer 공유)
   ================================================================ */

/* ── 페이지 베이스 ── */
.page-addon #sub-main,
.page-pdfviewer #sub-main {
  padding-top: 0;
  background: var(--us-ink-000);
}

/* ── hero br 줄바꿈 숨김 (기본/태블릿) ── */
.lx-hero-desc br,
.pv-hero-desc br { display: none; }

/* inner / reveal / section-header / title / desc / keyframes / hero:
   main.css 공통 유틸리티로 통합 */

/* ── 공통 타이포그래피 (색·weight만 override) ── */
.lx-label, .pv-label {
  font-weight: 700;
  color: var(--us-blue-700);
  margin-bottom: 14px;
}

/* ── 공통 카드 부품 ── */
.lx-card-icon, .pv-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding-top: 2px;
}
.lx-card-icon img, .pv-card-icon img { width: 52px; height: 52px; }
.lx-card-body, .pv-card-body { flex: 1; }

.lx-card-list, .pv-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}


/* ================================================================
   LX
   ================================================================ */

/* ── 섹션 패딩 ── */
.lx-about   { padding: 80px 0 120px 0; }
.lx-compare { padding: 150px 0; background: var(--us-paper-warm); }
.lx-why     { padding: 150px 0; }

/* ── hero 배경 이미지 ── */
.lx-hero-inner { animation: none; }
.lx-hero-inner::before {
  background: url('../imgs/addon/lx-hero-bg.webp') right / cover no-repeat;
  animation: subHeroZoomOut 2.0s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ── ② 제품 개요 (카드 그리드) ── */
.lx-card {
  align-items: flex-start;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out),
              border-color 0.3s var(--ease-out);
}

.lx-card-title {
  font-size: var(--fs-body-lg);
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: var(--ls);
}

.lx-card-list li {
  font-size: var(--fs-body-sm);
  color: var(--us-ink-500);
  letter-spacing: var(--ls);
  line-height: 1.55;
  --_marker: '>';
  --_indent: 14px;
  padding-left: var(--_indent);
  position: relative;
}
.lx-card-list li::before {
  content: var(--_marker);
  position: absolute;
  left: 0;
  color: var(--us-ink-300);
}


/* ── 구성도 ── */
.lx-archd {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 32px 0;
  margin-bottom: 40px;
  overflow-x: auto;
}

.lx-archd-label {
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--us-ink-600);
  text-align: center;
  line-height: 1.4;
  letter-spacing: var(--ls);
}

.lx-archd-server {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.02);
  border: 1.5px solid var(--us-ink-150);
  border-radius: var(--r-md);
  padding: 20px;
}
.lx-archd-server-icon img,
.lx-archd-monitors img,
.lx-archd-monitors-sm img,
.lx-archd-printer-item img { width: 52px; height: 52px; }

.lx-archd-conn {
  flex: 0 0 48px;
  height: 0;
  border-top: 1.5px solid var(--us-blue-700);
  flex-shrink: 0;
  position: relative;
}
.lx-archd-conn::before,
.lx-archd-conn::after {
  content: '';
  position: absolute;
  top: -1.5px;
  width: 8px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--us-blue-700);
  transform: translateY(-50%);
  box-shadow: 0 0 0 8px rgba(0, 117, 255, 0.25);
}
.lx-archd-conn::before { left: -3.5px; }
.lx-archd-conn::after  { right: -3.5px; }

.lx-archd-infobox {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background-color: color-mix(in srgb, var(--us-sky-500) 10%, transparent);
  border: 1.5px dashed var(--us-ink-200);
  border-radius: var(--r-lg);
  padding: 18px 16px;
  flex-shrink: 0;
  min-width: 162px;
  text-align: center;
  align-self: stretch;
}
.lx-archd-infotext {
  font-size: var(--fs-body-sm);
  color: var(--us-ink-600);
  line-height: 1.7;
  margin: 0;
  letter-spacing: var(--ls);
}
.lx-archd-monitors-sm {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}

.lx-archd-browser {
  display: flex;
  flex-direction: column;
  border: 2px solid var(--us-blue-700);
  border-radius: var(--r-lg);
  overflow: hidden;
  flex-shrink: 0;
  align-self: stretch;
}
.lx-archd-browser-hd {
  background: var(--us-blue-700);
  color: var(--us-ink-000);
  font-size: var(--fs-body-sm);
  font-weight: 600;
  text-align: center;
  padding: 6px 16px;
  letter-spacing: var(--ls);
}
.lx-archd-browser-bd {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  flex: 1;
}
.lx-archd-monitors {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.lx-archd-lxmod {
  width: 72px;
  height: 72px;
  border-radius: var(--r-pill);
  background: var(--us-blue-700);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.lx-archd-lxmod span {
  font-size: var(--fs-body);
  color: var(--us-ink-000);
  text-align: center;
  line-height: 1.3;
}
.lx-archd-browser-ft {
  font-size: var(--fs-body-sm);
  font-weight: 600;
  color: var(--us-blue-700);
  text-align: center;
  padding: 6px 12px;
  border-top: 1.5px solid rgba(54, 81, 217, 0.2);
  letter-spacing: var(--ls);
}

.lx-archd-printers {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-shrink: 0;
}
.lx-archd-printer-row {
  display: flex;
  align-items: center;
  gap: 0;
}
.lx-archd-printer-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(0, 0, 0, 0.02);
  border: 1.5px solid var(--us-ink-150);
  border-radius: var(--r-md);
  padding: 20px;
  flex-shrink: 0;
}
.lx-archd-trays {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.lx-archd-tray {
  font-size: var(--fs-body-sm);
  color: var(--us-ink-500);
  border: 1.5px dashed var(--us-ink-200);
  border-radius: var(--r-sm);
  padding: 3px 8px;
  letter-spacing: var(--ls);
  white-space: nowrap;
}
@keyframes lxFlowLine {
  from { stroke-dashoffset: 10; }
  to   { stroke-dashoffset: 0; }
}
.lx-archd-flow,
.lx-archd-conn-fan { flex-shrink: 0; }
.lx-archd-flow-a,
.lx-archd-flow-b,
.lx-archd-conn-spine,
.lx-archd-conn-a,
.lx-archd-conn-b,
.lx-archd-conn-c {
  stroke: var(--us-blue-700);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 6 4;
  fill: none;
}
.lx-archd-flow-arrow {
  fill: var(--us-blue-700);
  stroke: none;
}
.lx-archd-flow-a { animation: lxFlowLine 0.8s linear infinite; }
.lx-archd-flow-b { animation: lxFlowLine 0.8s linear infinite 0.15s; }
.lx-archd-conn-spine { animation: lxFlowLine 0.8s linear infinite; }
.lx-archd-conn-a { animation: lxFlowLine 0.8s linear infinite; }
.lx-archd-conn-b { animation: lxFlowLine 0.8s linear infinite 0.15s; }
.lx-archd-conn-c { animation: lxFlowLine 0.8s linear infinite 0.3s; }
.lx-archd-fallback { display: none; }

/* fan SVG · 트레이 연결선 좌→우 clip 등장 */
.lx-archd .lx-archd-conn-fan,
.lx-archd .lx-archd-flow { clip-path: inset(0 100% 0 0); transition: clip-path 0.7s var(--ease-storm); }
.lx-archd.active .lx-archd-conn-fan                                  { clip-path: inset(0 0% 0 0); transition-delay: 0.5s;  }
.lx-archd.active .lx-archd-printer-row:nth-child(1) .lx-archd-flow  { clip-path: inset(0 0% 0 0); transition-delay: 0.65s; }
.lx-archd.active .lx-archd-printer-row:nth-child(2) .lx-archd-flow  { clip-path: inset(0 0% 0 0); transition-delay: 0.8s;  }
.lx-archd.active .lx-archd-printer-row:nth-child(3) .lx-archd-flow  { clip-path: inset(0 0% 0 0); transition-delay: 0.95s; }


/* ── ③ 비교자료 ── */
.lx-compare-table {
  display: flex;
  flex-direction: column;
  border: 1.5px solid var(--us-ink-200);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.lx-compare-head,
.lx-compare-row {
  display: grid;
  grid-template-columns: 0.6fr 1fr 1fr;
}

.lx-compare-head { background: rgba(0, 0, 0, 0.03); position: relative; z-index: 1; }
.lx-compare-row  { border-top: 1.5px solid var(--us-ink-200); }
.lx-compare-row:hover { background: rgba(0, 0, 0, 0.02); }

.lx-compare-cell {
  padding: 16px;
  font-size: var(--fs-body);
  color: var(--us-ink-500);
  border-left: 1.5px solid var(--us-ink-200);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.lx-compare-cell--label {
  font-weight: 600;
  color: var(--us-ink-900);
  background: rgba(0, 0, 0, 0.02);
  border-left: none;
}

.lx-compare-head .lx-compare-cell {
  color: var(--us-ink-900);
  font-weight: 600;
  justify-content: center;
}
.lx-compare-head .lx-compare-cell--label { background: transparent; color: transparent; }

.lx-compare-cell--base {
  border-left: 1.5px solid var(--us-ink-200);
  background: transparent;
}
.lx-compare-head .lx-compare-cell--base strong { color: var(--us-ink-500); }

.lx-compare-cell--lx {
  border-left: 1.5px solid var(--us-ink-200);
  background-color: var(--us-blue-700);
  color: var(--us-ink-000);
}
.lx-compare-head .lx-compare-cell--lx {
  color: var(--us-ink-000);
  box-shadow: 0 8px 24px rgba(54, 81, 217, 0.35);
}
.lx-compare-row .lx-compare-cell:last-child { background-color: rgba(54, 81, 217, 0.05); }

.lx-compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.lx-compare-list li {
  --_marker: '\2714';
  --_indent: 20px;
  padding-left: var(--_indent);
  position: relative;
}
.lx-compare-list li::before {
  content: var(--_marker);
  position: absolute;
  left: 0;
  color: var(--us-blue-700);
}
/* 2열(비교 대상)은 마커 숨김 + 패딩 제거 → 변수 하나로 동시 제어 */
.lx-compare-row .lx-compare-cell:nth-child(2) .lx-compare-list li { --_marker: none; --_indent: 0px; }
.lx-compare-cell--lx .lx-compare-list li::before { color: rgba(255,255,255,0.4); }


/* ── ④ 적용분야 ── */
.lx-why-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}

.lx-why-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 24px 20px;
  border-right: 1.5px solid var(--us-ink-150);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.lx-why-card:last-child { border-right: none; }

.lx-why-card-img {
  width: 100%;
  height: 92px;
  background: no-repeat center / cover;
  border-radius: var(--r-lg);
}
.lx-why-cards .lx-why-card:nth-child(1) .lx-why-card-img { background-image: url('../imgs/addon/lx-why-01.png'); }
.lx-why-cards .lx-why-card:nth-child(2) .lx-why-card-img { background-image: url('../imgs/addon/lx-why-02.png'); }
.lx-why-cards .lx-why-card:nth-child(3) .lx-why-card-img { background-image: url('../imgs/addon/lx-why-03.png'); }
.lx-why-cards .lx-why-card:nth-child(4) .lx-why-card-img { background-image: url('../imgs/addon/lx-why-04.png'); }
.lx-why-cards .lx-why-card:nth-child(5) .lx-why-card-img { background-image: url('../imgs/addon/lx-why-05.png'); }

.lx-why-card-title {
  font-size: var(--fs-body-lg);
  font-weight: 700;
  color: var(--us-blue-700);
  letter-spacing: var(--ls);
  margin: 0;
}

.lx-why-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.lx-why-card-list li {
  font-size: var(--fs-body-sm);
  color: var(--us-ink-500);
  line-height: 1.7;
  --_marker: '>';
  --_indent: 14px;
  padding-left: var(--_indent);
  position: relative;
}
.lx-why-card-list li::before {
  content: var(--_marker);
  position: absolute;
  left: 0;
  color: var(--us-ink-300);
}
.lx-why-card-desc {
  font-size: var(--fs-body);
  line-height: var(--lh-body-sm);
  margin: 0;
  letter-spacing: var(--ls);
}

.lx-archd-fallback { display: none; }


/* ================================================================
   PDF VIEWER
   ================================================================ */

/* ── 섹션 패딩 ── */
.pv-about   { padding: 80px 0 120px 0; }
.pv-need    { padding: 120px 0; background: var(--us-paper-warm); }
.pv-synergy { padding: 120px 0; }
.pv-process { padding: 120px 0; background: var(--us-paper-warm); }

/* ── hero 배경 이미지 ── */
.pv-hero-inner { animation: none; }
.pv-hero-inner::before {
  background: url('../imgs/addon/pv-hero-bg.webp') right / cover no-repeat;
  animation: subHeroZoomOut 2.0s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ── ② 제품 개요 ── */
.pv-about-body {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--sp-5);
  align-items: center;
}

.pv-about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.pv-about-visual img {
  width: 100%;
  max-width: 520px;
  border-radius: var(--r-lg);
}

.pv-card-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pv-card {
  background: var(--us-paper-warm);
  border: 1.5px solid var(--us-ink-150);
  border-radius: var(--r-lg);
  padding: 28px 32px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 20px;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out), border-color 0.3s var(--ease-out);
}
.pv-card:hover { border-color: var(--us-ink-200); }

.pv-card-title {
  font-size: var(--fs-body-lg);
  font-weight: 500;
  margin: 0;
  letter-spacing: var(--ls);
}

.pv-card-list li {
  font-size: var(--fs-body-sm);
  color: var(--us-ink-500);
  letter-spacing: var(--ls);
  line-height: 1.55;
  padding-left: 0;
}
.pv-card-list li::before { content: ''; }

/* ── ③ 필요성 ── */
.pv-need-body {
  display: flex;
  gap: 40px;
  align-items: stretch;
}

.pv-need-stat {
  flex: 0 0 440px;
  background:
    linear-gradient(rgba(19,27,44,0.75), rgba(19,27,44,0.75)),
    url('../imgs/addon/pv-need-stat-bg.webp') no-repeat right bottom / cover,
    var(--us-paper-warm);
  border: 1.5px solid var(--us-ink-150);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: #fff;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.pv-need-stat-nums {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.pv-need-stat-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: var(--ls-lg);
}

.pv-need-stat-num {
  font-size: clamp(56px, 7vw, 88px);
  font-weight: 600;
  color: var(--us-sky-500);
  line-height: 1;
}
.pv-need-stat-num span { font-size: 0.4em; font-weight: 600; }

.pv-need-stat-title {
  font-size: var(--fs-body-lg);
  font-weight: 600;
}

.pv-need-stat p {
  font-size: var(--fs-body-sm);
  margin: 0;
  color: rgba(255,255,255,0.65);
}

.pv-need-body .lx-compare-table { flex: 1; }
.pv-need-body .lx-compare-table .lx-compare-row { flex: 1; }

/* ── ④ 시스템 시너지 ── */
.pv-synergy-body {
  display: flex;
  gap: 20px;
  align-items: stretch;
}

.pv-synergy-grid {
  flex: 3;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pv-synergy-card--text {
  flex: 1;
  background: none;
  border: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.pv-synergy-card--text p {
  font-size: var(--fs-body-lg);
  color: var(--us-ink-600);
  line-height: 1.7;
  letter-spacing: var(--ls);
  padding-left: 16px;
  position: relative;
}
.pv-synergy-card--text p::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--us-blue-700);
}

.pv-stat-card {
  background: var(--us-paper-warm);
  border: 1.5px solid var(--us-ink-150);
  border-radius: var(--r-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out), border-color 0.3s var(--ease-out);
}
.pv-stat-card:hover { border-color: var(--us-ink-200); }

.pv-stat-badge {
  width: 52px;
  height: 52px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pv-stat-badge img { width: 28px; height: 28px; }
.pv-stat-badge--blue   { background: color-mix(in srgb, var(--us-blue-700) 12%, transparent); }
.pv-stat-badge--green  { background: color-mix(in srgb, var(--us-green-600) 12%, transparent); }
.pv-stat-badge--purple { background: color-mix(in srgb, var(--us-danger) 12%, transparent); }

.pv-stat-body { display: flex; flex-direction: column; gap: 6px; }

.pv-stat-label {
  font-size: var(--fs-body);
  color: var(--us-ink-500);
  letter-spacing: var(--ls);
}

.pv-stat-value {
  font-size: var(--fs-h1);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
}
.pv-stat-value span:last-child {
  font-size: var(--fs-body-lg);
  color: var(--us-ink-00);
  margin-left: 4px;
}

.pv-stat-bar {
  height: 8px;
  background: var(--us-ink-200);
  border-radius: var(--r-pill);
  overflow: hidden;
}
.pv-stat-bar-fill {
  height: 100%;
  width: 0;
  border-radius: var(--r-pill);
  transition: width 2.2s var(--ease-out) 0.4s;
}
.pv-reveal.active .pv-stat-bar-fill--blue   { width: 95%; }
.pv-reveal.active .pv-stat-bar-fill--green  { width: 80%; }
.pv-reveal.active .pv-stat-bar-fill--purple { width: 100%; }
.pv-stat-bar-fill--blue   { background: var(--us-blue-700); }
.pv-stat-bar-fill--green  { background: var(--us-green-600); }
.pv-stat-bar-fill--purple { background: var(--us-danger); }

/* ── ⑤ 도입 프로세스 ── */
@keyframes pvStepIn {
  0%   { opacity: 0; transform: translateY(52px) scale(0.82); }
  60%  { opacity: 1; transform: translateY(-9px) scale(1.03); }
  80%  { transform: translateY(3px) scale(0.99); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes pvNumPulse {
  0%   { box-shadow: 0 0 0 0    rgba(255,255,255,0.55); }
  70%  { box-shadow: 0 0 0 16px rgba(255,255,255,0); }
  100% { box-shadow: 0 0 0 0    rgba(255,255,255,0); }
}
@keyframes pvConnLine {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.pv-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pv-step {
  border-radius: var(--r-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.pv-steps .pv-step:nth-child(1) { background: var(--us-blue-500); border: 1.5px solid var(--us-blue-500); z-index: 4; }
.pv-steps .pv-step:nth-child(2) { background: var(--us-blue-700); border: 1.5px solid var(--us-blue-700); z-index: 3; }
.pv-steps .pv-step:nth-child(3) { background: var(--us-blue-800); border: 1.5px solid var(--us-blue-800); z-index: 2; }
.pv-steps .pv-step:nth-child(4) { background: var(--us-blue-900); border: 1.5px solid var(--us-blue-900); z-index: 1; }

.pv-step.pv-reveal {
  opacity: 0;
  transform: translateY(52px) scale(0.82);
  transition: none;
}
.pv-step.pv-reveal.active {
  animation: pvStepIn 0.85s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}
.pv-steps .pv-step:nth-child(1).active { animation-delay: 0s;    }
.pv-steps .pv-step:nth-child(2).active { animation-delay: 0.22s; }
.pv-steps .pv-step:nth-child(3).active { animation-delay: 0.44s; }
.pv-steps .pv-step:nth-child(4).active { animation-delay: 0.66s; }

/* 숫자 사이 연결선 (::after) */
.pv-step:not(:last-child) { overflow: visible; }
.pv-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 57px;
  left: 84px;
  width: calc(100% - 32px);
  height: 10px;
  background: rgba(255,255,255,1);
  clip-path: polygon(
    0 40%,
    calc(100% - 9px) 40%,
    calc(100% - 9px) 0%,
    100% 50%,
    calc(100% - 9px) 100%,
    calc(100% - 9px) 60%,
    0 60%
  );
  transform-origin: left;
  transform: scaleX(0);
  pointer-events: none;
  z-index: 2;
}
.pv-step:not(:last-child).active::after { animation: pvConnLine 0.5s cubic-bezier(0.16, 1, 0.3, 1) both; }
.pv-steps .pv-step:nth-child(1).active::after { animation-delay: 2.28s; }
.pv-steps .pv-step:nth-child(2).active::after { animation-delay: 2.50s; }
.pv-steps .pv-step:nth-child(3).active::after { animation-delay: 2.72s; }

/* 숫자 박스 + 글로우 펄스 */
.pv-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--r-lg);
  background: rgba(255,255,255,0.1);
  border: 1.5px solid rgba(255,255,255,0.28);
  font-size: var(--fs-h4);
  font-weight: 600;
  letter-spacing: var(--ls);
  color: var(--us-blue-050);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}
.pv-step.active .pv-step-num { animation: pvNumPulse 1.4s ease-out both; }
.pv-steps .pv-step:nth-child(1).active .pv-step-num { animation-delay: 0.88s; }
.pv-steps .pv-step:nth-child(2).active .pv-step-num { animation-delay: 1.10s; }
.pv-steps .pv-step:nth-child(3).active .pv-step-num { animation-delay: 1.32s; }
.pv-steps .pv-step:nth-child(4).active .pv-step-num { animation-delay: 1.54s; }

.pv-step-title {
  font-size: var(--fs-body-lg);
  font-weight: 600;
  color: var(--us-blue-050);
  margin: 0;
  letter-spacing: var(--ls);
  position: relative;
  z-index: 1;
}

.pv-step-desc {
  font-size: var(--fs-body-sm);
  color: var(--us-blue-300);
  line-height: 1.6;
  letter-spacing: var(--ls);
  margin: 0;
}

.pv-process-cta {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}


/* ================================================================
   RESPONSIVE
   ================================================================ */

@media (max-width: 1024px) {
  /* ── LX ── */
  .lx-hero-inner { gap: 40px; }
  .lx-why-cards { grid-template-columns: repeat(3, 1fr); }
  .lx-why-card:nth-child(3n) { border-right: none; }
  .lx-archd { display: none; }
  .lx-archd-fallback { display: block; width: 100%; height: auto; margin-bottom: 40px; }
  /* ── PDF Viewer ── */
  .pv-hero       { padding: calc(var(--header-h) + 0px) 0 0; }
  .pv-hero-inner { padding: 40px 24px; border-radius: var(--r-none); }
  .pv-hero-inner .prod-breadcrumb { display: none; }
  .pv-hero-title { margin: 20px 0 0 0; }
  .pv-hero-desc  { margin: 0 0 8px; }
  .pv-inner      { padding: 0 24px; }
  .pv-about, .pv-need, .pv-synergy, .pv-process { padding: 80px 0; }
  .pv-about-body   { grid-template-columns: 1fr; }
  .pv-about-visual { display: none; }
  .pv-need-body { flex-direction: column; }
  .pv-need-stat { flex: none; width: 100%; box-sizing: border-box; }
  .pv-synergy-body { flex-direction: column; }
  .pv-steps        { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  /* ── LX ── */
  .lx-inner { padding: 0 24px; }
  .lx-hero { padding: calc(var(--header-h) + 0px) 0 0; }
  .lx-hero-inner { padding: 40px 24px; border-radius: var(--r-none); background-size: cover; }
  .lx-hero-inner .prod-breadcrumb { display: none; }
  .lx-hero-title { margin: 20px 0 0 0; }
  .lx-hero-desc  { margin: 0 0 8px; }
  .lx-about,
  .lx-compare,
  .lx-why { padding: 80px 0; }
  .lx-section-header { margin-bottom: 48px; }
  .lx-card-grid { grid-template-columns: 1fr; }
  .lx-card:last-child { grid-column: auto; }
  .lx-card { flex-direction: column; }
  .lx-why-cards { grid-template-columns: repeat(2, 1fr); }
  .lx-why-card:nth-child(3n) { border-right: 1.5px solid var(--us-ink-150); }
  .lx-why-card:nth-child(2n) { border-right: none; }
  .lx-compare-head { grid-template-columns: 1fr 1fr; }
  .lx-compare-head .lx-compare-cell--label { display: none; }
  .lx-compare-row {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .lx-compare-cell--label {
    grid-column: 1 / -1;
    font-size: var(--fs-body-sm);
    background: none;
    color: var(--us-ink-900);
    border-left: none;
    border-bottom: 1.5px dashed var(--us-ink-200);
  }
  .lx-compare-cell--base,
  .lx-compare-cell--lx { font-size: var(--fs-body-sm); border-left: none; }
  .lx-compare-cell--base { border-right: 1.5px solid var(--us-ink-150); }
  .lx-compare-row .lx-compare-cell:nth-child(2) { border-left: none; }
  /* ── PDF Viewer ── */
  .pv-synergy-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  /* ── 공통 ── */
  .lx-hero-inner,
  .pv-hero-inner { padding: 28px 20px; }
  .lx-hero-btns,
  .pv-hero-btns  { flex-direction: column; align-items: flex-start; }
  .lx-hero-desc br,
  .pv-hero-desc br { display: inline; }

  /* ── LX ── */
  .lx-why-cards  { grid-template-columns: 1fr; }
  .lx-why-card               { border-right: none; border-bottom: 1.5px solid var(--us-ink-150); }
  .lx-why-card:last-child    { border-bottom: none; }

  /* ── PDF Viewer ── */
  .pv-section-header { margin-bottom: 48px; }
  .pv-steps      { grid-template-columns: 1fr; }
  .pv-step {
    padding: 0;
    flex-direction: row;
    gap: 12px;
    background: transparent;
    border: none;
    overflow: visible;
  }
  .pv-steps .pv-step:nth-child(1),
  .pv-steps .pv-step:nth-child(2),
  .pv-steps .pv-step:nth-child(3),
  .pv-steps .pv-step:nth-child(4) {
    background: transparent;
    border: none;
  }
  /* 모바일: 연결선 비활성화 */
  .pv-step::before,
  .pv-step:not(:last-child)::after { display: none; }
  .pv-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    border-radius: var(--r-lg);
    background: var(--us-blue-600);
    border: 1.5px solid var(--us-blue-600);
    padding: 20px;
    flex-shrink: 0;
    animation: none;
  }
  .pv-step-body {
    background: var(--us-ink-000);
    border: 1.5px solid var(--us-ink-150);
    border-radius: var(--r-lg);
    padding: 20px;
    width: 100%;
  }
  .pv-step-title { color: var(--us-ink-900); }
}