/* ===== Index Landing Page ===== */
.container--landing {
  max-width: none;
  margin: 0;
  padding: 0;
}

/* Hero: subtle data-mesh grid background */
.landing-hero-pattern {
  background-color: #F9FAFB;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* Section spacing (24–32px) */
.landing-section {
  margin-top: 32px;
  margin-bottom: 32px;
}

.landing-section__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text, #0f172a);
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}

.landing-section__lead {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted, #64748b);
}

/* 1. Hero */
.landing-hero {
  text-align: center;
  padding: 28px 0 40px;
  margin-bottom: 8px;
}

.landing-hero__title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  color: var(--text, #0f172a);
  flex-wrap: wrap;
  justify-content: center;
}

.landing-hero__desc {
  margin: 0 0 24px;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.landing-hero__en {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.btn-hero-cta {
  display: inline-block;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--primary, #0e8c82);
  border-radius: var(--radius, 12px);
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
  border: none;
}

.btn-hero-cta:hover {
  background: var(--primary-hover, #0c6d65);
  color: #fff;
  transform: translateY(-1px);
}

/* 2. Problem */
.landing-problem__list {
  margin: 0;
  padding-left: 1.25em;
  line-height: 1.75;
  color: var(--text-muted);
}

.landing-problem__list li {
  margin-bottom: 12px;
}

.landing-problem__list strong {
  color: var(--text);
}

/* 3. Features */
.landing-features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.landing-features__card {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border-light, #f1f5f9);
  border-radius: var(--radius, 12px);
  padding: 20px;
  box-shadow: var(--shadow, 0 1px 3px rgb(0 0 0 / 0.06));
}

.landing-features__card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
}

.landing-features__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 4. How it works */
.landing-steps__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 20px;
}

.landing-steps__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.landing-steps__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* 5. Use cases */
.landing-usecases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.landing-usecases__card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.landing-usecases__card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
}

.landing-usecases__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 6. FAQ */
.landing-faq__list {
  margin: 16px 0 0;
}

.landing-faq__list dt {
  font-weight: 600;
  color: var(--text);
  margin-top: 14px;
}

.landing-faq__list dt:first-child { margin-top: 0; }

.landing-faq__list dd {
  margin: 4px 0 0;
  padding-left: 0.5em;
  border-left: 3px solid var(--border-light);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.landing-faq__list a {
  color: var(--primary);
  text-decoration: none;
}

.landing-faq__list a:hover { text-decoration: underline; }

.landing-faq__more {
  display: inline-block;
  margin-top: 16px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.landing-faq__more:hover { text-decoration: underline; }

/* 7. Final CTA */
.landing-cta {
  text-align: center;
  padding: 32px 24px;
  margin-top: 32px;
  background: linear-gradient(145deg, rgba(14, 140, 130, 0.08) 0%, rgba(14, 140, 130, 0.04) 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

.landing-cta__title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text);
}

.landing-cta__desc {
  margin: 0 0 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .landing-steps__list { grid-template-columns: 1fr; }
  .landing-features__grid,
  .landing-usecases__grid { grid-template-columns: 1fr; }
}

.header--landing {
  text-align: center;
  margin-bottom: 28px;
  margin-top: 24px;
}

.landing-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--text, #0f172a);
}

.landing-title-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #14b8a6 0%, #0e8c82 50%, #0c6d65 100%);
  color: #fff;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

.landing-description {
  margin: 0;
  font-size: 1rem;
  color: var(--text-muted, #64748b);
}

/* ===== Cards (grid controlled by Tailwind: 1 col → md:2 → lg:3) ===== */
.landing-cards {
  display: grid;
  margin-bottom: 40px;
}

.landing-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.28s ease;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.landing-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 0 0 1px rgba(14, 140, 130, 0.25), 0 20px 50px -12px rgba(0, 0, 0, 0.2), 0 8px 24px -8px rgba(0, 0, 0, 0.12);
}

.landing-card--compare:hover {
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.25), 0 20px 50px -12px rgba(0, 0, 0, 0.2), 0 8px 24px -8px rgba(0, 0, 0, 0.12);
}

.landing-card:focus-visible {
  outline: 2px solid var(--primary, #0f766e);
  outline-offset: 4px;
}

.landing-card__inner {
  padding: 32px 28px;
  min-height: 260px;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .landing-card__inner {
    padding: 36px 32px;
    min-height: 280px;
  }
}

@media (min-width: 1280px) {
  .landing-card__inner {
    padding: 40px 36px;
    min-height: 300px;
  }
}

/* Feature / Use case cards: more padding on wide screens */
@media (min-width: 1280px) {
  .landing-features__card,
  .landing-usecases__card {
    padding: 2.5rem 2.25rem;
  }
}

/* Default state: icon + title + desc + cta */
.landing-card__default {
  display: flex;
  flex-direction: column;
  flex: 1;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.landing-card:hover .landing-card__default {
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
}

/* Single CSV - 対角グラデーション（やや彩度控えめでコントラスト確保） */
.landing-card--single .landing-card__inner {
  background: linear-gradient(145deg, #0f9d8e 0%, #0d8275 40%, #0a6b60 100%);
  color: #fff;
}

.landing-card--single .landing-card__title {
  color: rgba(255, 255, 255, 0.95);
}

.landing-card--single .landing-card__desc,
.landing-card--single .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--single .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

/* Compare - 対角グラデーション（やや彩度控えめでコントラスト確保） */
.landing-card--compare .landing-card__inner {
  background: linear-gradient(145deg, #2d6ee8 0%, #1e5bc9 50%, #1849a8 100%);
  color: #fff;
}

/* Encoding fix card */
.landing-card--encoding .landing-card__inner {
  background: linear-gradient(145deg, #7c3aed 0%, #6d28d9 50%, #5b21b6 100%);
  color: #fff;
}

.landing-card--encoding .landing-card__title {
  color: rgba(255, 255, 255, 0.95);
}

.landing-card--encoding .landing-card__desc,
.landing-card--encoding .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--encoding .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

.landing-card--encoding:hover {
  box-shadow: 0 0 0 1px rgba(124, 58, 237, 0.25), 0 20px 50px -12px rgba(0, 0, 0, 0.2), 0 8px 24px -8px rgba(0, 0, 0, 0.12);
}

.landing-card--encoding:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #6d28d9;
  border-color: #6d28d9;
  background: rgba(109, 40, 217, 0.08);
}

.landing-card--encoding:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #7c3aed;
  background: rgba(109, 40, 217, 0.14);
}

.landing-card--encoding .landing-card__hover-desc .landing-card__hover-title {
  color: #6d28d9;
}

.landing-card--compare .landing-card__title {
  color: rgba(255, 255, 255, 0.95);
}

.landing-card--compare .landing-card__desc,
.landing-card--compare .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--compare .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

.landing-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  flex-shrink: 0;
}

.landing-card__icon--emoji {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  line-height: 1;
  font-weight: 700;
}

.landing-card__icon svg {
  width: 100%;
  height: 100%;
}

.landing-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 6px;
  line-height: 1.3;
}

.landing-card__desc {
  font-size: 0.9rem;
  margin: 0 0 8px;
  line-height: 1.45;
}

.landing-card__value {
  font-size: 0.8rem;
  font-weight: 500;
  margin: 0 0 12px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.98);
}

.landing-card__steps {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  margin: 0 0 12px;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.95);
  flex: 1;
  min-height: 0;
}

.landing-card__cta {
  display: inline-block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-top: auto;
  padding: 10px 18px;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.15);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  align-self: flex-start;
}

.landing-card:hover .landing-card__cta {
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(255, 255, 255, 0.95);
}

/* Hover: full-card overlay (no overlap with default text) */
.landing-card__hover-desc {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 22px 20px 28px;
  background: rgba(255, 255, 255, 0.98);
  color: var(--text, #0f172a);
  border-radius: 16px;
  margin: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transition: opacity 0.3s cubic-bezier(0.34, 1.2, 0.64, 1), transform 0.3s cubic-bezier(0.34, 1.2, 0.64, 1);
  pointer-events: none;
  text-align: left;
  backdrop-filter: blur(8px);
  box-sizing: border-box;
  min-height: 0;
}

.landing-card:hover .landing-card__hover-desc {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.landing-card__hover-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--primary, #0f766e);
  letter-spacing: -0.01em;
}

.landing-card--compare .landing-card__hover-title {
  color: #1d4ed8;
}

.landing-card__hover-list {
  margin: 0 0 auto;
  padding-left: 1.25em;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text, #334155);
}

.landing-card__hover-list li {
  margin-bottom: 4px;
}

.landing-card__cta--hover {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  flex-shrink: 0;
  display: inline-block;
  margin-top: 14px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 2px solid var(--primary, #0f766e);
  background: rgba(15, 118, 110, 0.08);
  color: var(--primary, #0f766e);
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}

/* 호버 오버레이 CTA: 카드별 색상 유지(흰색 테두리로 덮이지 않도록) */
.landing-card:hover .landing-card__hover-desc .landing-card__cta--hover {
  border-color: var(--primary, #0f766e);
}
.landing-card--single:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #0f766e;
  border-color: #0f766e;
  background: rgba(15, 118, 110, 0.08);
}
.landing-card--single:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #0d9488;
  background: rgba(15, 118, 110, 0.14);
}
.landing-card--compare:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #1d4ed8;
  border-color: #1d4ed8;
  background: rgba(29, 78, 216, 0.08);
}
.landing-card--compare:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #2563eb;
  background: rgba(29, 78, 216, 0.14);
}

.landing-card--encoding:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #6d28d9;
  border-color: #6d28d9;
  background: rgba(109, 40, 217, 0.08);
}
.landing-card--encoding:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #7c3aed;
  background: rgba(109, 40, 217, 0.14);
}

/* Convert card - amber/orange */
.landing-card--convert .landing-card__inner {
  background: linear-gradient(145deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
  color: #fff;
}

.landing-card--convert .landing-card__title {
  color: rgba(255, 255, 255, 0.95);
}

.landing-card--convert .landing-card__desc,
.landing-card--convert .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--convert .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

.landing-card--convert:hover {
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.25), 0 20px 50px -12px rgba(0, 0, 0, 0.2), 0 8px 24px -8px rgba(0, 0, 0, 0.12);
}

.landing-card--convert .landing-card__hover-desc .landing-card__hover-title {
  color: #b45309;
}

.landing-card--convert:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #b45309;
  border-color: #b45309;
  background: rgba(180, 83, 9, 0.08);
}
.landing-card--convert:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #d97706;
  background: rgba(217, 119, 6, 0.14);
}

/* Splitter card - orange/teal accent */
.landing-card--splitter .landing-card__inner {
  background: linear-gradient(145deg, #ea580c 0%, #c2410c 50%, #9a3412 100%);
  color: #fff;
}

.landing-card--splitter .landing-card__title {
  color: rgba(255, 255, 255, 0.95);
}

.landing-card--splitter .landing-card__desc,
.landing-card--splitter .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--splitter .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

.landing-card__icon--split {
  width: 72px;
  height: 60px;
  margin-bottom: 12px;
}

.landing-card__icon--split img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.landing-card--splitter:hover {
  box-shadow: 0 0 0 1px rgba(234, 88, 12, 0.3), 0 20px 50px -12px rgba(0, 0, 0, 0.2), 0 8px 24px -8px rgba(0, 0, 0, 0.12);
}

.landing-card--splitter .landing-card__hover-desc .landing-card__hover-title {
  color: #9a3412;
}

.landing-card--splitter:hover .landing-card__hover-desc .landing-card__cta--hover {
  color: #9a3412;
  border-color: #9a3412;
  background: rgba(154, 52, 18, 0.08);
}

.landing-card--splitter:hover .landing-card__hover-desc .landing-card__cta--hover:hover {
  border-color: #c2410c;
  background: rgba(194, 65, 12, 0.14);
}

/* ===== Developer tools cards ===== */
.landing-card--dev-json .landing-card__inner {
  background: linear-gradient(145deg, #0f9d8e 0%, #0d8275 40%, #0a6b60 100%);
  color: #fff;
}
.landing-card--dev-regex .landing-card__inner {
  background: linear-gradient(145deg, #2d6ee8 0%, #1e5bc9 50%, #1849a8 100%);
  color: #fff;
}
.landing-card--dev-timestamp .landing-card__inner {
  background: linear-gradient(145deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
  color: #fff;
}
.landing-card--dev-sql .landing-card__inner {
  background: linear-gradient(145deg, #7c3aed 0%, #6d28d9 50%, #5b21b6 100%);
  color: #fff;
}
.landing-card--dev-base64 .landing-card__inner {
  background: linear-gradient(145deg, #ea580c 0%, #c2410c 50%, #9a3412 100%);
  color: #fff;
}
.landing-card--dev-url .landing-card__inner {
  background: linear-gradient(145deg, #14b8a6 0%, #0f766e 50%, #115e59 100%);
  color: #fff;
}
.landing-card--dev-hash .landing-card__inner {
  background: linear-gradient(145deg, #2563eb 0%, #1d4ed8 50%, #1e40af 100%);
  color: #fff;
}
.landing-card--dev-jwt .landing-card__inner {
  background: linear-gradient(145deg, #f59e0b 0%, #f97316 45%, #ea580c 100%);
  color: #fff;
}
.landing-card--dev-cron .landing-card__inner {
  background: linear-gradient(145deg, #6366f1 0%, #4f46e5 50%, #3730a3 100%);
  color: #fff;
}

.landing-card--dev-json .landing-card__desc,
.landing-card--dev-json .landing-card__cta,
.landing-card--dev-regex .landing-card__desc,
.landing-card--dev-regex .landing-card__cta,
.landing-card--dev-timestamp .landing-card__desc,
.landing-card--dev-timestamp .landing-card__cta,
.landing-card--dev-sql .landing-card__desc,
.landing-card--dev-sql .landing-card__cta,
.landing-card--dev-base64 .landing-card__desc,
.landing-card--dev-base64 .landing-card__cta,
.landing-card--dev-url .landing-card__desc,
.landing-card--dev-url .landing-card__cta,
.landing-card--dev-hash .landing-card__desc,
.landing-card--dev-hash .landing-card__cta,
.landing-card--dev-jwt .landing-card__desc,
.landing-card--dev-jwt .landing-card__cta,
.landing-card--dev-cron .landing-card__desc,
.landing-card--dev-cron .landing-card__cta {
  color: rgba(255, 255, 255, 0.85);
}

.landing-card--dev-json .landing-card__icon,
.landing-card--dev-regex .landing-card__icon,
.landing-card--dev-timestamp .landing-card__icon,
.landing-card--dev-sql .landing-card__icon,
.landing-card--dev-base64 .landing-card__icon,
.landing-card--dev-url .landing-card__icon,
.landing-card--dev-hash .landing-card__icon,
.landing-card--dev-jwt .landing-card__icon,
.landing-card--dev-cron .landing-card__icon {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== SEO / AdSense 정보성 콘텐츠 섹션 (카드 아래, 푸터 위) ===== */
.landing-seo {
  background: #f9fafb;
  padding: 60px 0;
}

.landing-seo__container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.landing-seo__section {
  padding: 60px 0;
}

.landing-seo__section:first-child {
  padding-top: 0;
}

.landing-seo__section:last-child {
  padding-bottom: 0;
}

.landing-seo__section h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text, #0f172a);
  margin: 0 0 20px;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.landing-seo__section h2 .landing-seo__accent {
  color: var(--primary, #0e8c82);
}

.landing-seo__section p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-muted, #64748b);
  margin: 0;
}

/* Section 2: 3단 그리드 카드 */
.landing-seo__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 28px;
}

.landing-seo__card {
  background: var(--bg-card, #fff);
  border: 1px solid var(--border, #e2e8f0);
  border-radius: var(--radius, 12px);
  padding: 28px 24px;
  box-shadow: var(--shadow, 0 1px 3px rgb(0 0 0 / 0.06));
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.landing-seo__card:hover {
  border-color: var(--primary, #0e8c82);
  box-shadow: 0 4px 20px -4px rgba(14, 140, 130, 0.15);
}

.landing-seo__card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-muted, #ccfbf1);
  color: var(--primary, #0e8c82);
  border-radius: 12px;
  margin-bottom: 16px;
}

.landing-seo__card-icon svg {
  width: 24px;
  height: 24px;
}

.landing-seo__card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text, #0f172a);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.landing-seo__card p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  margin: 0;
}

/* Section 3: 강조 박스 */
.landing-seo__highlight {
  background: var(--bg-card, #fff);
  border: 2px solid var(--primary, #0e8c82);
  border-radius: var(--radius, 12px);
  padding: 28px 32px;
  margin-top: 28px;
  box-shadow: 0 2px 12px rgba(14, 140, 130, 0.08);
}

.landing-seo__highlight h2 {
  margin-bottom: 16px;
}

.landing-seo__highlight p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text, #334155);
}

.landing-seo__highlight strong {
  font-weight: 700;
  color: var(--primary, #0e8c82);
}

@media (max-width: 768px) {
  .landing-seo {
    padding: 40px 0;
  }

  .landing-seo__section {
    padding: 40px 0;
  }

  .landing-seo__section h2 {
    font-size: 1.5rem;
  }

  .landing-seo__section p,
  .landing-seo__highlight p {
    font-size: 1rem;
  }

  .landing-seo__grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 20px;
  }

  .landing-seo__card {
    padding: 22px 20px;
  }

  .landing-seo__highlight {
    padding: 22px 20px;
    margin-top: 20px;
  }
}

/* Responsive - カード縦積み・フォントサイズ確保 */
@media (max-width: 768px) {
  .landing-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .landing-card__inner {
    min-height: 200px;
    padding: 24px 22px;
  }

  .landing-card:hover {
    transform: translateY(-4px) scale(1.02);
  }

  .landing-card__value {
    font-size: 0.8rem;
  }

  .landing-card__steps {
    font-size: 0.78rem;
  }

  .landing-card__cta {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .landing-card__hover-desc {
    margin: 8px;
    padding: 18px 16px;
  }

  .landing-card__hover-title {
    font-size: 0.9rem;
  }

  .landing-card__hover-list {
    font-size: 0.8rem;
  }

}