/* FACE ART > 스킨부스터 공용 상세 페이지 (리투오 / 물광주사 / 연어주사) */

.skbst-page {
  background-color: #1e1f22;
  color: #f1f1f1;
  overflow: hidden;
}

.skbst-page * {
  box-sizing: border-box;
}

.skbst-section {
  position: relative;
  width: 100%;
}

.skbst-inner {
  width: min(100%, 1240px);
  margin: 0 auto;
  padding: 0 24px;
}

.skbst-inner--narrow {
  width: min(100%, 980px);
}

.skbst-title {
  margin: 0;
  text-align: center;
  font-size: clamp(24px, 2.05vw, 35px);
  line-height: 1.32;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.skbst-subtitle {
  margin: 0 0 6px;
  text-align: center;
  font-size: clamp(20px, 1.65vw, 30px);
  line-height: 1.3;
  font-weight: 300;
  letter-spacing: -0.02em;
}

.skbst-desc {
  margin: clamp(14px, 1.6vw, 22px) 0 0;
  text-align: center;
  font-size: clamp(13px, 0.95vw, 17px);
  line-height: 1.65;
  font-weight: 400;
  color: #cfcfcf;
  letter-spacing: -0.01em;
}

/* ===== HERO ===== */
.skbst-hero {
  min-height: clamp(420px, 56.25vw, 1080px);
  padding-top: clamp(34px, 5.2vw, 80px);
  background-position: center bottom;
  background-size: cover;
  background-repeat: no-repeat;
  text-align: center;
}

.skbst-hero--re2o {
  background-image: url('/img/sub/face/skinboster/re2o/01_hero.jpg');
}

.skbst-hero--waterglow {
  background-image: url('/img/sub/face/skinboster/waterglow/01_hero.jpg');
}

.skbst-hero--salmon {
  background-image: url('/img/sub/face/skinboster/salmon/01_hero.jpg');
}

.skbst-hero-eyebrow {
  margin: 0;
  color: #3b3b3b;
  font-size: clamp(15px, 1.5vw, 26px);
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: 0.02em;
}

.skbst-hero-title {
  margin: clamp(8px, 1vw, 16px) 0 0;
  color: #1a1a1a;
  font-size: clamp(28px, 3vw, 52px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.skbst-hero-desc {
  margin: clamp(14px, 1.6vw, 24px) 0 0;
  color: #3f3f3f;
  font-size: clamp(12px, 0.95vw, 17px);
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* ===== INTRO ===== */
.skbst-intro {
  padding: clamp(60px, 6.5vw, 110px) 0;
}

.skbst-intro-image {
  width: min(100%, 420px);
  margin: clamp(30px, 3.6vw, 60px) auto 0;
}

.skbst-intro-image img {
  display: block;
  width: 100%;
  height: auto;
}

.skbst-intro-icons {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 40px);
  margin-top: clamp(34px, 4.2vw, 70px);
}

.skbst-intro-icon {
  text-align: center;
}

.skbst-intro-icon img {
  display: block;
  width: clamp(56px, 5vw, 86px);
  height: auto;
  margin: 0 auto;
}

.skbst-intro-icon h4 {
  margin: clamp(12px, 1.4vw, 22px) 0 0;
  font-size: clamp(15px, 1.15vw, 21px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.skbst-intro-icon p {
  margin: clamp(8px, 0.8vw, 12px) 0 0;
  font-size: clamp(11px, 0.8vw, 15px);
  line-height: 1.5;
  font-weight: 400;
  color: #cfcfcf;
  letter-spacing: -0.01em;
}

/* ===== DIAGRAM ===== */
.skbst-diagram {
  padding: clamp(60px, 6.5vw, 110px) 0;
}

.skbst-diagram-wrap {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-template-areas:
    "a hub b"
    "c hub d";
  align-items: center;
  gap: clamp(30px, 4vw, 70px) clamp(20px, 2.4vw, 44px);
  width: min(100%, 980px);
  margin: clamp(36px, 4.6vw, 76px) auto 0;
}

.skbst-diagram-item {
  min-width: 0;
}

.skbst-diagram-item:nth-of-type(1) { grid-area: a; text-align: right; }
.skbst-diagram-item:nth-of-type(2) { grid-area: b; text-align: left; }
.skbst-diagram-item:nth-of-type(3) { grid-area: c; text-align: right; }
.skbst-diagram-item:nth-of-type(4) { grid-area: d; text-align: left; }

.skbst-diagram-item h4 {
  margin: 0;
  font-size: clamp(15px, 1.15vw, 21px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.skbst-diagram-item p {
  margin: clamp(8px, 0.9vw, 14px) 0 0;
  font-size: clamp(11px, 0.82vw, 15px);
  line-height: 1.6;
  font-weight: 400;
  color: #cfcfcf;
  letter-spacing: -0.01em;
}

.skbst-diagram-hub {
  grid-area: hub;
  width: clamp(150px, 16vw, 240px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  display: grid;
  place-items: center;
  background: #3a3d42;
}

.skbst-diagram-hub img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.skbst-diagram-hub span {
  position: relative;
  z-index: 1;
  display: block;
  text-align: center;
  font-size: clamp(12px, 0.9vw, 17px);
  line-height: 1.35;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.45);
}

/* ===== CHECK ===== */
.skbst-check {
  padding: clamp(60px, 6.5vw, 110px) 0;
}

.skbst-check-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(26px, 3.6vw, 68px);
  margin-top: clamp(34px, 4.4vw, 74px);
}

.skbst-check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.skbst-check-list li {
  font-size: clamp(13px, 0.95vw, 17px);
  line-height: 1.5;
  font-weight: 400;
  color: #ededed;
  letter-spacing: -0.01em;
}

.skbst-check-list li + li {
  margin-top: clamp(10px, 1.1vw, 18px);
}

.skbst-check-visual {
  flex: 0 0 auto;
  margin: 0;
  width: clamp(180px, 18vw, 300px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
}

.skbst-check-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== EFFECT ===== */
.skbst-effect {
  padding: clamp(60px, 6.5vw, 110px) 0;
}

.skbst-effect-eyebrow {
  display: block;
  width: fit-content;
  margin: clamp(16px, 1.8vw, 30px) auto 0;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.8);
  font-size: clamp(13px, 1vw, 18px);
  line-height: 1.2;
  letter-spacing: 0.04em;
}

.skbst-effect-grid {
  width: min(100%, 760px);
  margin: clamp(30px, 3.6vw, 58px) auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(10px, 1.2vw, 22px);
}

.skbst-effect-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  overflow: hidden;
}

.skbst-effect-item img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.skbst-effect-item span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: clamp(8px, 1vw, 16px);
  text-align: center;
  font-size: clamp(11px, 0.82vw, 15px);
  line-height: 1.3;
  font-weight: 500;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}

/* ===== SUMMARY / PRECAUTIONS ===== */
.skbst-summary {
  padding: clamp(56px, 6vw, 100px) 0;
  background: #000;
}

.skbst-summary p {
  margin: 0;
  text-align: center;
  font-size: clamp(12px, 0.86vw, 16px);
  line-height: 1.85;
  font-weight: 400;
  color: #e6e6e6;
  letter-spacing: -0.01em;
}

.skbst-summary p + p {
  margin-top: clamp(20px, 2.2vw, 34px);
}

.skbst-precautions {
  padding: clamp(60px, 6.5vw, 110px) 0;
  background: #1e1f22;
}

.skbst-precautions-title {
  margin: 0;
  text-align: center;
  font-family: 'Times New Roman', serif;
  font-size: clamp(24px, 2vw, 35px);
  line-height: 1.2;
  font-weight: 400;
}

.skbst-precautions-line {
  display: block;
  width: 1px;
  height: clamp(20px, 4.2vw, 42px);
  margin: clamp(10px, 4.2vw, 18px) auto clamp(10px, 4.2vw, 30px);
  background: rgba(255, 255, 255, 0.86);
}

.skbst-precautions-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.skbst-precautions-list li {
  margin: 0;
  text-align: center;
  font-size: clamp(12px, 0.86vw, 16px);
  line-height: 1.72;
  font-weight: 400;
  color: #f2f2f2;
  letter-spacing: -0.01em;
}

.skbst-precautions-list li + li {
  margin-top: clamp(16px, 1.8vw, 26px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .skbst-diagram-wrap {
    grid-template-columns: 1fr;
    grid-template-areas:
      "hub"
      "a"
      "b"
      "c"
      "d";
    justify-items: center;
    gap: clamp(24px, 4vw, 40px);
  }

  .skbst-diagram-item,
  .skbst-diagram-item:nth-of-type(1),
  .skbst-diagram-item:nth-of-type(2),
  .skbst-diagram-item:nth-of-type(3),
  .skbst-diagram-item:nth-of-type(4) {
    text-align: center;
  }
}

@media (max-width: 768px) {
  .skbst-hero {
    min-height: 520px;
  }

  .skbst-intro-icons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 16px;
  }

  .skbst-check-content {
    flex-direction: column;
  }

  .skbst-check-visual {
    order: -1;
    width: min(58%, 240px);
  }

  .skbst-effect-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .skbst-summary p br,
  .skbst-precautions-list li br {
    display: none;
  }
}

@media (max-width: 480px) {
  .skbst-hero {
    min-height: 460px;
  }
}