/* ===== 디자인 토큰 ===== */
:root {
  --primary: #fe5c17;
  --gray-000: #ffffff;
  --gray-050: #f5f5f5;
  --gray-100: #e9e9e9;
  --gray-200: #d9d9d9;
  --gray-300: #c4c4c4;
  --gray-400: #9d9d9d;
  --gray-500: #7b7b7b;
  --gray-600: #555555;
  --gray-800: #262626;
  --gray-900: #000000;

  --content-width: 1440px;

  --fs-display-l: 60px;
  --fs-display-m: 44px;
  --fs-display-s: 36px;
  --fs-heading-xl: 40px;
  --fs-heading-l: 32px;
  --fs-heading-m: 24px;
  --fs-body-l: 19px;
  --fs-body-m: 17px;

  --radius-card: 12px;
  --radius-img: 10px;
  --radius-pill: 1000px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: "Pretendard", "Pretendard Variable", -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", sans-serif;
  color: var(--gray-900);
  background: var(--gray-000);
  line-height: 1.5;
  letter-spacing: -0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
strong { font-weight: 700; }

::selection {
  color: #fff;
  background: var(--primary);
}

::-moz-selection {
  color: #fff;
  background: var(--primary);
}

/* 배경은 100% 너비, 컨텐츠는 1440px 고정·중앙정렬 */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
}

section { width: 100%; }

/* ===== 공통 타이포 ===== */
.section-title {
  font-size: var(--fs-display-l);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  color: var(--gray-900);
}
.section-title.light { color: var(--gray-000); }
.section-title .o,
.o { color: var(--primary); }

.muted-desc {
  font-size: var(--fs-body-l);
  font-weight: 400;
  color: var(--gray-600);
  text-align: center;
}
.muted-desc.light { color: var(--gray-400); }
.muted-desc.light2 { color: var(--gray-100); }

/* ===== 버튼 ===== */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: var(--fs-body-m);
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-pill);
  padding: 12px 28px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.btn-pill:hover {
  transform: translateY(-2px) scale(1.03);
  background: #ff7338;
}

/* ===== 1. HERO ===== */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: url("../assets/hero-bg.jpg") center / cover no-repeat;
}
.hero__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding: 80px 24px;
  text-align: center;
}
.hero__text { display: flex; flex-direction: column; gap: 24px; }
.hero__eyebrow { font-size: var(--fs-body-l); color: var(--gray-300); }
.hero__title {
  font-size: var(--fs-display-l);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}
.hero__desc { font-size: var(--fs-body-l); color: #fff; }

/* ===== 2. TROUBLE ===== */
.trouble {
  background: var(--gray-000);
  padding: 88px 0;
}
.trouble .container { display: flex; flex-direction: column; gap: 48px; }
.trouble__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.trouble__icon { width: 40px; height: 40px; }
.card-icon { width: 32px; height: 32px; }

.trouble__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding-inline: 24px;
}
.trouble-card {
  background: var(--gray-050);
  border-radius: var(--radius-card);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.trouble-card__h {
  font-size: var(--fs-heading-l);
  font-weight: 700;
  line-height: 1.5;
  color: var(--gray-900);
}
.trouble-card__p {
  font-size: var(--fs-body-l);
  color: var(--gray-600);
}

/* ===== 3. TROUBLESHOOT ===== */
.troubleshoot {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.troubleshoot__bg {
  position: absolute;
  inset: 0;
  background: url("../assets/troubleshoot-bg.png") center / cover no-repeat;
}
.troubleshoot__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  padding: 80px 24px;
}
.troubleshoot__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.section-title.light,
.troubleshoot .section-title { color: #fff; }
.troubleshoot__desc {
  font-size: var(--fs-body-l);
  color: #fff;
  text-align: center;
}
.solution-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}
.solution-icon {
  width: 160px;
  height: 160px;
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.solution-icon img { width: 48px; height: 48px; }
.solution-icon span { color: #fff; font-size: var(--fs-body-l); }

/* ===== 4. CALLA DIFFERENT ===== */
.calla-different {
  background: var(--gray-000);
  padding: 80px 0;
}
.calla-different .container {
  display: flex;
  flex-direction: column;
  gap: 64px;
}
.calla-different__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
/* calla 로고 — 단일 SVG를 마스크로 사용, 색상만 컨텍스트별 지정 (원본 비율 유지) */
.calla-logo {
  display: inline-block;
  width: 200px;
}
/*.calla-logo--brand { color: var(--primary); }*/
/*.calla-logo--white { color: #fff; }*/

.benefit-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  padding-inline: 24px;
}
.benefit {
  flex: 1 1 0;
  max-width: 200px;
  aspect-ratio: 1 / 1;
  background: var(--primary);
  border-radius: 50%;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
  padding: 8px;
}
.benefit strong { font-size: var(--fs-heading-m); line-height: 1.4; }
.benefit span { font-size: var(--fs-body-l); }

/* ===== 5. SET / PRODUCTS ===== */
.set-section {
  background: var(--gray-900);
  padding: 80px 0;
  display: flex;
  flex-direction: column;
  gap: 52px;
}
.set-section .container,
.set-section__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.set-section__ico { width: 32px; height: 32px; object-fit: contain; }

.toggle-btn {
  display: inline-flex;
  gap: 8px;
  background: var(--gray-800);
  border-radius: var(--radius-pill);
  padding: 4px;
}
.toggle-label {
  font-family: inherit;
  font-size: var(--fs-body-l);
  color: var(--gray-200);
  background: transparent;
  border: 0;
  border-radius: var(--radius-pill);
  padding: 8px 20px;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.toggle-label.is-active { background: var(--primary); color: #fff; }

/* 캐러셀 */
.product-slide {
  position: relative;
  width: 100%;
}
.product-viewport {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  cursor: grab;
}
.product-viewport::-webkit-scrollbar { display: none; }
.product-viewport.is-dragging { cursor: grabbing; }
.product-track {
  display: flex;
  gap: 20px;
  width: max-content;
  padding-inline: max(24px, calc((100vw - var(--content-width)) / 2 + 24px));
}
.product-card {
  flex: 0 0 400px;
  background: var(--gray-800);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card__text {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 40px 32px;
}
.product-card--mac { display: none; }
.product-slide.is-mac .product-card--mac {
  display: flex;
  order: 1;
}
.product-slide.is-mac .product-card--optional { order: 2; }
.product-card__badge {
  align-self: flex-start;
  color: #fff;
  background: var(--primary);
  border-radius: var(--radius-pill);
  padding: 5px 12px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
}
.product-card__brand { font-size: var(--fs-body-l); color: var(--gray-300); }
.product-card__name {
  font-size: var(--fs-heading-l);
  font-weight: 700;
  line-height: 1.5;
  color: #fff;
}
.product-card__img { height: 350px; }
.product-card__img img { width: 100%; height: 100%; object-fit: cover; }

.slide-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 0;
  background: var(--primary);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), opacity 0.2s var(--ease);
}
.slide-nav:hover { transform: translateY(-50%) scale(1.1); background: #ff7338; }
.slide-nav--prev { left: 16px; }
.slide-nav--next { right: 16px; }
.slide-nav:disabled { opacity: 0.3; cursor: default; }

/* ===== 6. DIAGRAM ===== */
.diagram-section {
  background: var(--gray-900);
  padding: 80px 0;
}
.diagram-section .container {
  display: flex;
  flex-direction: column;
  gap: 64px;
}
.diagram-grid {
  display: flex;
  gap: 20px;
  padding-inline: 24px;
}
.diagram-card {
  flex: 1 1 0;
  background: var(--gray-050);
  border-radius: var(--radius-card);
  padding: 40px 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.diagram-card__h {
  font-size: var(--fs-heading-xl);
  font-weight: 700;
  text-align: center;
  color: var(--gray-900);
}
.diagram-card img { width: 100%; height: auto; }

/* ===== 7. SPECIAL CARE ===== */
.special-care {
  background: var(--gray-900);
  padding: 80px 0;
}
.special-care .container {
  display: flex;
  flex-direction: column;
  gap: 56px;
}
.special-care__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.care-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-inline: 24px;
}
.care-card {
  background: var(--gray-000);
  border-radius: var(--radius-card);
  padding: 40px;
  display: flex;
  gap: 40px;
  align-items: center;
}
.care-card__text {
  flex: 1 1 0;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.care-card__head {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.care-card__title {
  font-size: var(--fs-display-s);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary);
}
.care-card__sub { font-size: var(--fs-body-l); color: var(--gray-600); }
.care-card__line { border: 0; border-top: 1px solid var(--gray-200); }
.care-card__body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.care-card__lead {
  font-size: var(--fs-heading-m);
  font-weight: 700;
  color: var(--gray-900);
}
.care-card__desc { font-size: var(--fs-body-l); color: var(--gray-600); }
.care-card__subblock { display: flex; flex-direction: column; gap: 4px; }
.care-card__subhead {
  font-size: var(--fs-body-l);
  font-weight: 700;
  color: var(--gray-600);
}
.care-card__img {
  flex: 1 1 0;
  max-width: 660px;
  aspect-ratio: 660 / 350;
  border-radius: var(--radius-img);
  overflow: hidden;
}
.care-card__img img { width: 100%; height: 100%; object-fit: cover; }

/* ===== 8. WITH CALLA ===== */
.with-calla {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.with-calla__bg {
  position: absolute;
  inset: 0;
  background: url("../assets/with-calla-bg.png") center / cover no-repeat;
}
.with-calla__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
  padding: 80px 24px;
}
.with-calla__text {
  font-size: var(--fs-display-m);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  color: #fff;
}
.with-calla__text .white { color: #fff; }
.with-calla__text .o { color: var(--primary); }

/* ===== 9. WHY CALLA ===== */
.why-calla {
  background: var(--gray-050);
  padding: 80px 0;
}
.why-calla .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}
.why-calla__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.compare-table {
  border-collapse: collapse;
  width: 664px;
  max-width: 100%;
  table-layout: fixed;
}
.compare-table th,
.compare-table td {
  border: 0.6px solid var(--gray-200);
  text-align: center;
  vertical-align: middle;
}
.ca-logo {
  width: 60px;
  height: 21px;
}
.ct-mark { width: 200px; }
.ct-item { width: 264px; }
.ct-head { height: 48px; background: var(--gray-100); }
.ct-head.ct-mark { font-size: var(--fs-body-m); color: var(--gray-900); font-weight: 400; }
.ct-head.ct-item { font-size: var(--fs-body-m); color: var(--gray-900); font-weight: 700; }
.ct-head--calla { background: var(--primary); }
.ct-head--calla .calla-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}
.compare-table tbody td { height: 56px; background: #fff; }
.compare-table tbody td.ct-item {
  font-size: var(--fs-body-m);
  font-weight: 700;
  color: var(--gray-900);
}
.compare-table tbody td.ct-item small {
  font-size: 13px;
  font-weight: 400;
}
.ct-mark.yes,
.ct-mark.no { font-size: var(--fs-body-m); color: var(--gray-500); }

/* ===== 반응형 (유동 축소) ===== */
@media (max-width: 1024px) {
  :root {
    --fs-display-l: 44px;
    --fs-display-m: 34px;
    --fs-display-s: 30px;
    --fs-heading-xl: 32px;
    --fs-heading-l: 26px;
    --fs-heading-m: 21px;
    --fs-body-l: 17px;
  }
  .product-card { flex-basis: 320px; }
  .product-card__img { height: 280px; }
}

@media (max-width: 768px) {
  :root {
    --fs-display-l: 34px;
    --fs-display-m: 26px;
    --fs-display-s: 24px;
    --fs-heading-xl: 24px;
    --fs-heading-l: 22px;
    --fs-heading-m: 18px;
    --fs-body-l: 15px;
    --fs-body-m: 15px;
  }
  .trouble__grid { grid-template-columns: 1fr; }
  .trouble-card { padding: 24px; }
  .benefit-row { flex-wrap: wrap; }
  .benefit { flex-basis: 140px; max-width: 160px; }
  .diagram-grid { flex-direction: column; }
  .care-card { flex-direction: column; align-items: stretch; padding: 24px; gap: 24px; }
  .care-card__text { min-width: 0; }
  .care-card__img { max-width: none; width: 100%; }
  .product-card { flex-basis: 78vw; }
  .slide-nav { width: 42px; height: 42px; font-size: 22px; }
  .hero, .troubleshoot, .with-calla { min-height: 520px; }
}

@media (max-width: 480px) {
  .benefit { flex-basis: 100%; max-width: 220px; aspect-ratio: auto; border-radius: 20px; padding: 24px; }
}

/* =========================================================
   스크롤 등장 애니메이션
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =========================================================
   호버 인터랙션 (그림자 없음)
   ========================================================= */
.trouble-card,
.product-card,
.care-card,
.reviewbox,
.benefit,
.solution-icon,
.gallery__item,
.diagram-card,
.m-photo,
.faq-item { transition: transform 0.2s ease-out, background 0.2s ease-out,
            border-color 0.2s ease-out, opacity 0.2s ease-out; }

.trouble-card:hover { transform: translateY(-6px); background: #efefef; }
.product-card:hover { transform: translateY(-6px); }
.care-card:hover { transform: translateY(-6px); }
.benefit:hover { transform: scale(1.05); }
.solution-icon:hover { background: rgba(255, 255, 255, 0.12); }
.toggle-label:not(.is-active):hover { color: #fff; }

/* 이미지 줌 (overflow hidden 컨테이너) */
.product-card__img,
.diagram-card,
.gallery__item,
.care-card__img,
.m-photo { overflow: hidden; }
.product-card__img img,
.gallery__item img,
.care-card__img img,
.m-photo img { transition: transform 0.35s ease-out; }
.product-card:hover .product-card__img img,
.gallery__item:hover img,
.care-card:hover .care-card__img img,
.m-photo:hover img { transform: scale(1.05); }

/* =========================================================
   10. SELECT TITLE
   ========================================================= */
.select-title {
  background: var(--gray-000);
  padding: 80px 0 64px;
}
.select-title .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

/* =========================================================
   11. MARQUEE
   ========================================================= */
.marquee {
  width: 100%;
  background: var(--gray-050);
  overflow: hidden;
}
.marquee__row { width: 100%; overflow: hidden; }
.marquee__row--photos { padding: 48px 0; }
.marquee__row--reviews { padding: 48px 0; }
.marquee__track {
  display: flex;
  width: max-content;
  will-change: transform;
}
.marquee__track[data-marquee="photos"] { animation: marquee-right 48s linear infinite; }
.marquee__track[data-marquee="reviews"] { animation: marquee-left 60s linear infinite; }
.marquee__row:hover .marquee__track { animation-play-state: paused; }

@keyframes marquee-left {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes marquee-right {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

.m-photo {
  flex: 0 0 auto;
  width: 400px;
  height: 240px;
  margin-right: 16px;
  border-radius: 8px;
}
.m-photo img { width: 100%; height: 100%; object-fit: cover; }

.reviewbox {
  flex: 0 0 auto;
  width: 400px;
  height: 204px;
  margin-right: 16px;
  background: var(--gray-000);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.reviewbox:hover { transform: translateY(-6px); border-color: var(--primary); }
.reviewbox__text {
  font-size: 15px;
  color: var(--gray-900);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.reviewbox__meta {
  display: flex;
  gap: 12px;
  align-items: center;
}
.reviewbox__rating {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}
.reviewbox__rating img { height: 13px; width: auto; display: block; }
.reviewbox__rating em { font-style: normal; font-size: 14px; color: var(--gray-600); }
.reviewbox__user { font-size: 14px; color: var(--gray-500); }

/* =========================================================
   12. GALLERY
   ========================================================= */
.gallery {
  background: var(--gray-000);
  padding: 80px 0;
}
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery__item {
  aspect-ratio: 348 / 266;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; }

/* =========================================================
   13. FAQ
   ========================================================= */
.faq-section {
  background: var(--gray-050);
  padding: 80px 0;
}
.faq-section .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 80px;
}
.faq-list { width: 100%; }
.faq-item { border-bottom: 1px solid var(--gray-100); }
.faq-item:hover { background: #efefef; }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}
.faq-q__text {
  flex: 1;
  font-size: var(--fs-heading-m);
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.5;
}
.faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 25px;
  height: 25px;
  transition: transform 0.3s var(--ease);
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--gray-900);
  border-radius: 2px;
}
.faq-icon::before { left: 12.5%; right: 12.5%; top: 50%; height: 3px; transform: translateY(-50%); }
.faq-icon::after { top: 12.5%; bottom: 12.5%; left: 50%; width: 3px; transform: translateX(-50%); }
.faq-q[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }
.faq-q[aria-expanded="true"] .faq-icon::before,
.faq-q[aria-expanded="true"] .faq-icon::after { background: var(--primary); }
.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s var(--ease);
}
.faq-a p {
  padding: 0 24px 28px;
  font-size: var(--fs-body-l);
  color: var(--gray-600);
  line-height: 1.6;
}

/* =========================================================
   14. PC SPEC
   ========================================================= */
.pc-spec {
  background: var(--gray-000);
  padding: 80px 0;
}
.pc-spec .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}
.pc-spec__title {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}
.pc-spec__tablewrap { width: 720px; max-width: 100%; }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  display: none;
}
.spec-table.is-active { display: table; }
.spec-table th,
.spec-table td {
  border: 1px solid var(--gray-200);
  padding: 16px 20px;
  font-size: var(--fs-body-m);
  text-align: left;
  vertical-align: middle;
}
.spec-table thead th {
  color: #fff;
  font-weight: 700;
  text-align: center;
}
.spec-table--win thead th { background: var(--primary); }
.spec-table--mac thead th { background: #2f6bed; }
.spec-table tbody th {
  text-align: center;
  font-weight: 700;
  color: var(--gray-900);
  width: 110px;
  background: var(--gray-050);
}
.spec-table tbody td { color: var(--gray-600); }
.spec-table small { font-size: 13px; color: var(--gray-500); }

/* =========================================================
   15. NOTICE
   ========================================================= */
.notice { width: 100%; margin-bottom: 80px; }
.notice__band {
  width: 100%;
  background: var(--primary);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.notice__band + .notice__band { border-top: 1px solid rgba(255, 255, 255, 0.25); }
.notice__ico { width: 32px; height: 32px; }
.notice__band p {
  color: #fff;
  font-size: var(--fs-body-m);
  font-weight: 700;
  text-align: center;
  line-height: 1.6;
}

/* =========================================================
   16. CTA CHANNELTALK
   ========================================================= */
.cta-channeltalk {
  background: linear-gradient(105deg, #ece4ff 0%, #ffffff 42%, #ffffff 58%, #ffe7d8 100%);
  padding: 64px 0;
}
.cta-channeltalk .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.cta__ico { width: 56px; height: 56px; object-fit: contain; }
.cta__text {
  font-size: var(--fs-heading-l);
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  color: var(--gray-900);
}
.cta__btn { margin-top: 8px; text-decoration: none; }
.cta__hours {
  margin-top: 8px;
  font-size: 14px;
  color: var(--gray-500);
}

/* =========================================================
   17. FOOTER
   ========================================================= */
.calla-white-logo {
  width: 75px;
  height: 26px;
}
.site-footer {
  background: #434343;
  padding: 40px 0;
}
.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-inline: 40px;
}
.footer__logo { align-self: flex-start; width: 66px; }
.footer__info {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: #fff;
}
.footer__company { font-weight: 700; }
.footer__copy { color: var(--gray-400); margin-top: 4px; }

/* =========================================================
   Floating chatbot
   ========================================================= */
.floating-chatbot {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 200;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  border: 1px solid rgba(255, 255, 255, 0.28);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}
.floating-chatbot:hover {
  transform: translateY(-3px) scale(1.04);
  background: #ff7338;
}
.floating-chatbot img {
  width: 32px;
  height: 32px;
  filter: invert(1);
}

/* =========================================================
   신규 섹션 반응형
   ========================================================= */
@media (max-width: 1024px) {
  .pc-spec__tablewrap { width: 100%; }
  .m-photo { width: 320px; height: 192px; }
  .reviewbox { width: 340px; }
}
@media (max-width: 768px) {
  .gallery__grid {
    display: flex;
    gap: 14px;
    max-width: none;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    padding-inline: 24px;
    scroll-padding-inline: 24px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .gallery__grid::-webkit-scrollbar { display: none; }
  .gallery__item {
    flex: 0 0 min(82vw, 360px);
    scroll-snap-align: center;
  }
  .faq-section .container { gap: 48px; }
  .faq-q__text { font-size: 17px; }
  .m-photo { width: 240px; height: 144px; }
  .reviewbox { width: 280px; height: auto; min-height: 190px; }
  .spec-table th, .spec-table td { padding: 12px 14px; font-size: 14px; }
  .cta__text { font-size: 22px; }
  .site-footer .container { padding-inline: 20px; }
  .floating-chatbot {
    right: 18px;
    bottom: 18px;
    width: 56px;
    height: 56px;
  }
  .floating-chatbot img {
    width: 28px;
    height: 28px;
  }
}
@media (max-width: 480px) {
  .gallery__grid { padding-inline: 20px; scroll-padding-inline: 20px; }
  .gallery__item { flex-basis: 84vw; }
}

/* =========================================================
   GNB (상단 고정 내비게이션)
   ========================================================= */
.gnb {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease),
    backdrop-filter 0.25s var(--ease);
}
.gnb.gnb--over-hero {
  background: transparent;
  border-bottom-color: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.gnb__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 40px;
}
.gnb__logo { display: flex; align-items: center; min-width: 0; }
.gnb__logo .calla-logo { width: clamp(130px, 16vw, 200px); }
.gnb__logo img { width: 100%; height: auto; }
.gnb__logo .calla-logo {
  position: relative;
  display: inline-grid;
  align-items: center;
}
.gnb__logo-img {
  grid-area: 1 / 1;
  transition: opacity 0.2s var(--ease);
}
.gnb__logo-img--light { opacity: 0; }
.gnb.gnb--over-hero .gnb__logo-img--dark { opacity: 0; }
.gnb.gnb--over-hero .gnb__logo-img--light { opacity: 1; }
.gnb__nav { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }
.gnb__link {
  color: var(--gray-800);
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: color 0.2s ease-out;
}
.gnb__link:hover { color: var(--primary); }
.gnb.gnb--over-hero .gnb__link { color: #fff; }
.gnb.gnb--over-hero .gnb__link:hover { color: var(--primary); }
.gnb__btn {
  margin-left: 4px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  transition: transform 0.2s ease-out, background 0.2s ease-out, border-color 0.2s ease-out;
}
.gnb__btn--primary { background: var(--primary); color: #fff; border: 1px solid var(--primary); }
.gnb__btn--primary:hover { background: #ff7338; transform: translateY(-2px); }
.gnb__btn--ghost { background: #fff; color: var(--gray-800); border: 1px solid var(--gray-200); }
.gnb__btn--ghost:hover { color: var(--primary); border-color: var(--primary); background: #fff8f4; transform: translateY(-2px); }
.gnb.gnb--over-hero .gnb__btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.72);
}
.gnb.gnb--over-hero .gnb__btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  color: #fff;
}

/* PC 권장사양 — Mac OS 토글 시 파란색 (하단 표 헤더와 동일) */
.pc-spec__toggle .toggle-label[data-os="mac"].is-active { background: #2f6bed; }

/* warning(notice) 밴드 — 가로 최대 1440px 제한 */
.notice__band { max-width: var(--content-width); margin-inline: auto; }

/* GNB 반응형 */
@media (max-width: 900px) {
  .gnb__inner { padding-inline: 20px; }
  .gnb__link { font-size: 14px; padding: 8px 10px; }
  .gnb__btn { font-size: 13px; padding: 9px 14px; }
}
@media (max-width: 600px) {
  .gnb__inner { height: 60px; }
  .gnb__nav .gnb__link { display: none; }
  .gnb__nav { gap: 4px; }
  .gnb__btn { font-size: 12px; padding: 8px 10px; }
}
@media (max-width: 360px) {
  .gnb__inner { padding-inline: 14px; }
  .gnb__logo .calla-logo { width: 116px; }
  .gnb__btn { font-size: 11px; padding: 7px 8px; }
}

/* =========================================================
   ProPresenter 소개 페이지
   ========================================================= */
.intro-page {
  background: var(--gray-900);
  color: #fff;
}
.intro-page .gnb,
.intro-page .gnb.gnb--over-hero {
  background: rgba(0, 0, 0, 0.94);
  border-bottom-color: rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.intro-page .gnb__logo-img--dark {
  opacity: 0;
}
.intro-page .gnb__logo-img--light {
  opacity: 1;
}
.intro-page .gnb__link {
  color: #fff;
}
.intro-page .gnb__link:hover {
  color: var(--primary);
}
.intro-page .gnb__btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.72);
}
.intro-page .gnb__btn--ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  color: #fff;
}
.intro-main {
  background: var(--gray-900);
  display: flex;
  flex-direction: column;
  gap: 120px;
}
.intro-hero {
  position: relative;
  min-height: 800px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.intro-hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
    url("../assets/pp-intro.png") center / cover no-repeat;
}
.intro-hero__inner {
  position: relative;
  padding: 120px 24px 80px;
}
.intro-hero__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 32px;
  max-width: 860px;
}
.intro-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: #114af0;
  padding: 4px 8px;
  font-size: var(--fs-body-l);
  line-height: 1.5;
}
.intro-hero__title,
.intro-section__title {
  color: #fff;
  font-size: var(--fs-display-l);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
}
.intro-hero__title {
  text-align: left;
}
.intro-hero__desc,
.intro-section__desc,
.intro-feature__text p {
  color: var(--gray-100);
  font-size: var(--fs-body-l);
  line-height: 1.5;
}
.intro-section {
  width: 100%;
}
.intro-section .container,
.intro-section__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 80px;
}
.intro-section__head {
  gap: 24px;
  padding-inline: 24px;
}
.intro-section__desc {
  text-align: center;
}
.intro-feature-grid,
.intro-feature-rail {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding-inline: 24px;
}
.intro-feature-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.intro-feature-rail {
  display: flex;
  max-width: none;
  justify-content: flex-start;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  cursor: grab;
  padding-inline: max(24px, calc((100vw - var(--content-width)) / 2 + 24px));
}
.intro-feature-rail::-webkit-scrollbar { display: none; }
.intro-feature-rail.is-dragging { cursor: grabbing; }
.intro-feature {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.intro-feature-rail .intro-feature {
  flex: 0 0 458px;
  scroll-snap-align: center;
}
.intro-placeholder {
  width: 100%;
  aspect-ratio: 458 / 320;
  border-radius: var(--radius-card);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    var(--gray-050);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.intro-feature__text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.intro-feature__text h3 {
  color: #fff;
  font-size: var(--fs-heading-l);
  font-weight: 700;
  line-height: 1.5;
}
.intro-section--last {
  padding-bottom: 120px;
}

@media (max-width: 1024px) {
  .intro-main { gap: 96px; }
  .intro-hero { min-height: 680px; }
  .intro-feature-grid { grid-template-columns: 1fr; }
  .intro-feature-grid--two { grid-template-columns: 1fr; }
  .intro-feature-rail .intro-feature { flex-basis: min(82vw, 420px); }
}
@media (max-width: 768px) {
  .intro-main { gap: 80px; }
  .intro-hero { min-height: 600px; }
  .intro-hero__inner { padding: 96px 20px 64px; }
  .intro-hero__text { gap: 24px; }
  .intro-section .container { gap: 56px; }
  .intro-section__head { gap: 20px; }
  .intro-feature-grid { gap: 44px; padding-inline: 20px; }
  .intro-feature-rail {
    gap: 20px;
    padding-inline: 20px;
    scroll-padding-inline: 20px;
  }
  .intro-feature { gap: 24px; }
}
@media (max-width: 480px) {
  .intro-kicker { font-size: 14px; }
  .intro-hero__desc br { display: none; }
  .intro-feature-rail .intro-feature { flex-basis: 84vw; }
}

/* Hover 반응은 지연 없이 부드럽게 적용 */
.btn-pill,
.toggle-label,
.slide-nav,
.trouble-card,
.product-card,
.care-card,
.reviewbox,
.benefit,
.solution-icon,
.gallery__item,
.diagram-card,
.m-photo,
.faq-item,
.product-card__img img,
.gallery__item img,
.care-card__img img,
.m-photo img,
.gnb__link,
.gnb__btn,
.floating-chatbot {
  transition-delay: 0s;
}