/* ====================================
   セクシー動画レビューサイト - スタイル
   ==================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS変数 */
:root {
  --color-bg-primary: #120b18;
  --color-bg-secondary: #1d1326;
  --color-bg-card: #24182f;
  --color-accent: #b77a2f;
  --color-accent-hover: #d39a4d;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b3b3b3;
  --color-text-muted: #666666;
  --color-border: #3b2947;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* リセット & 基本スタイル */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* コンテナ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ====================================
   ヘッダー
   ==================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.95) 0%, rgba(10, 10, 10, 0.8) 100%);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--spacing-lg);
}

.logo {
  max-width: 360px;
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.25;
  background: linear-gradient(135deg, var(--color-accent) 0%, #ff6b7a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__list {
  display: flex;
  gap: var(--spacing-md);
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-normal);
}

.nav__link:hover {
  color: var(--color-text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #ff4757 100%);
  color: var(--color-text-primary);
  box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(230, 57, 70, 0.4);
}

/* ====================================
   ヒーローセクション
   ==================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
}

.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(230, 57, 70, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(255, 71, 87, 0.1) 0%, transparent 50%);
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.03;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 920px;
  padding: var(--spacing-xxl) var(--spacing-lg);
}

.hero__eyebrow {
  display: inline-flex;
  margin-bottom: var(--spacing-sm);
  padding: 0.35rem 0.8rem;
  color: var(--color-accent);
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid rgba(230, 57, 70, 0.25);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #ffffff 0%, #b3b3b3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title span {
  background: linear-gradient(135deg, var(--color-accent) 0%, #ff6b7a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
}

.hero__btn {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

.hero__quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.hero__quick-links a {
  padding: 0.45rem 0.85rem;
  color: var(--color-text-secondary);
  background: rgba(31, 31, 31, 0.82);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
}

.hero__quick-links a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ====================================
   セクション共通
   ==================================== */
.section {
  padding: var(--spacing-xxl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

/* ====================================
   トップページ収益導線
   ==================================== */
.ranking-section {
  background: var(--color-bg-secondary);
}

.ranking-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-lg);
}

.ranking-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.ranking-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
}

.ranking-card--featured {
  padding: 0;
}

.ranking-card__rank {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  z-index: 1;
  padding: 0.35rem 0.75rem;
  color: var(--color-text-primary);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
}

.ranking-card__media {
  display: block;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(230, 57, 70, 0.16), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, #161616 0%, #2a2a2a 100%);
  overflow: hidden;
}

.ranking-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ranking-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
}

.ranking-card__label {
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.ranking-card__title {
  font-size: 1.3rem;
  line-height: 1.4;
}

.ranking-card--featured .ranking-card__title {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.ranking-card__text {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.ranking-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.ranking-card__meta span {
  padding: 0.3rem 0.65rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.ranking-card__link {
  margin-top: auto;
  color: var(--color-accent);
  font-weight: 700;
}

.intent-section {
  background: var(--color-bg-primary);
}

.intent-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.intent-card {
  min-height: 230px;
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.intent-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
}

.intent-card__kicker {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
}

.intent-card__title {
  margin-bottom: var(--spacing-sm);
  font-size: 1.15rem;
  line-height: 1.45;
}

.intent-card__text {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
  line-height: 1.75;
}

.guide-section {
  background: var(--color-bg-secondary);
}

.guide-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.guide-panel {
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.guide-panel__step {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 1.75rem;
  font-weight: 700;
}

.guide-panel__title {
  margin-bottom: var(--spacing-sm);
  font-size: 1.2rem;
}

.guide-panel__text {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.trust-section {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.trust-section__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.trust-section__title {
  margin-bottom: var(--spacing-sm);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.trust-section__text {
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.trust-section__links {
  display: grid;
  gap: var(--spacing-sm);
}

.trust-section__links a {
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-primary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.trust-section__links a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ====================================
   ランキング記事テンプレート
   ==================================== */
.ranking-article-hero {
  padding: 132px 0 var(--spacing-xxl);
  background:
    linear-gradient(180deg, rgba(26, 26, 26, 0.92) 0%, rgba(10, 10, 10, 1) 72%),
    var(--color-bg-primary);
}

.ranking-article-hero__inner {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.ranking-article-hero__eyebrow {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ranking-article-hero__title {
  margin-bottom: var(--spacing-md);
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.16;
}

.ranking-article-hero__lead {
  max-width: 72ch;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.ranking-article-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.ranking-article-hero__meta span {
  padding: 0.35rem 0.7rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
}

.ranking-summary,
.disclosure-box {
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.ranking-summary {
  position: sticky;
  top: 104px;
}

.ranking-summary__title {
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

.ranking-summary__list {
  display: grid;
  gap: 0.8rem;
  margin-bottom: var(--spacing-lg);
  padding-left: 1.2rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.disclosure-section {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  background: var(--color-bg-primary);
}

.disclosure-box {
  display: grid;
  gap: 0.45rem;
}

.disclosure-box strong {
  color: var(--color-accent);
}

.disclosure-box p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.comparison-section {
  background: var(--color-bg-secondary);
}

.comparison-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.comparison-table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
  background: var(--color-bg-card);
}

.comparison-table th,
.comparison-table td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  font-size: 0.88rem;
}

.comparison-table td {
  color: var(--color-text-secondary);
  font-size: 0.92rem;
}

.comparison-table tbody tr:last-child td {
  border-bottom: 0;
}

.comparison-table a {
  color: var(--color-accent);
  font-weight: 700;
}

.comparison-table__review-link {
  display: inline-block;
  margin-top: 0.35rem;
  font-size: 0.82rem;
}

.ranking-list-section {
  background: var(--color-bg-primary);
}

.ranking-entry-list {
  display: grid;
  gap: var(--spacing-lg);
}

.ranking-entry {
  position: relative;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.ranking-entry__rank {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  z-index: 1;
  padding: 0.4rem 0.8rem;
  color: var(--color-text-primary);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.ranking-entry__media {
  display: block;
  min-height: 220px;
  background:
    linear-gradient(135deg, rgba(230, 57, 70, 0.14), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, #141414 0%, #2a2a2a 100%);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.ranking-entry__media img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
}

.ranking-entry__content {
  display: grid;
  gap: var(--spacing-sm);
}

.ranking-entry__category {
  color: var(--color-accent);
  font-size: 0.84rem;
  font-weight: 700;
}

.ranking-entry__title {
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.ranking-entry__text {
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.ranking-entry__points {
  display: grid;
  gap: var(--spacing-xs);
  margin: var(--spacing-xs) 0;
}

.ranking-entry__points div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.ranking-entry__points dt {
  color: var(--color-text-primary);
  font-weight: 700;
}

.ranking-entry__points dd {
  color: var(--color-text-secondary);
}

.ranking-entry__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

/* ====================================
   個別レビュー記事テンプレート
   ==================================== */
.review-article-hero {
  padding: 132px 0 var(--spacing-xxl);
  background:
    linear-gradient(180deg, rgba(26, 26, 26, 0.92) 0%, rgba(10, 10, 10, 1) 72%),
    var(--color-bg-primary);
}

.review-article-hero__inner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.review-article-hero__media {
  position: relative;
  min-height: 380px;
  background:
    linear-gradient(135deg, rgba(230, 57, 70, 0.15), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, #151515 0%, #2a2a2a 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.review-article-hero__media--image {
  display: block;
  overflow: hidden;
}

.review-article-hero__media--image img {
  width: 100%;
  height: 100%;
  min-height: 380px;
  object-fit: cover;
}

.review-article-hero__badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  padding: 0.4rem 0.75rem;
  color: var(--color-text-primary);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
}

.review-article-hero__eyebrow {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 0.82rem;
  font-weight: 700;
}

.review-article-hero__title {
  margin-bottom: var(--spacing-md);
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.16;
}

.review-article-hero__lead {
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.review-article-hero__tags,
.review-article-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.review-article-hero__tags span {
  padding: 0.35rem 0.7rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
}

.review-article-section {
  background: var(--color-bg-primary);
}

.review-article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--spacing-xl);
  align-items: start;
}

.review-article-main,
.review-sidebar {
  display: grid;
  gap: var(--spacing-lg);
}

.review-block,
.review-sidebar__card,
.fit-card {
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.review-block__title {
  margin-bottom: var(--spacing-md);
  font-size: 1.35rem;
}

.review-block p {
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--spacing-sm);
}

.review-block p:last-child {
  margin-bottom: 0;
}

.review-check-list {
  display: grid;
  gap: 0.85rem;
  color: var(--color-text-secondary);
}

.review-check-list li {
  position: relative;
  padding-left: 1.2rem;
  line-height: 1.75;
}

.review-check-list li::before {
  content: '';
  position: absolute;
  top: 0.68rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.sample-video {
  position: relative;
  margin-top: var(--spacing-md);
  aspect-ratio: 4 / 3;
  background: #000;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.sample-video iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.sample-video__button {
  margin-top: var(--spacing-md);
}

.fit-grid,
.score-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.fit-card h3 {
  margin-bottom: var(--spacing-sm);
}

.fit-card--muted {
  background: var(--color-bg-card);
}

.score-card {
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.score-card span {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
  font-size: 0.86rem;
}

.score-card strong {
  color: var(--color-accent);
  font-size: 2rem;
}

.review-cta-block {
  background:
    linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(31, 31, 31, 1)),
    var(--color-bg-secondary);
}

.review-sidebar {
  position: sticky;
  top: 104px;
}

.review-sidebar__card h2 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.review-sidebar__score {
  margin: var(--spacing-sm) 0;
  color: var(--color-accent);
  font-size: 3rem;
  font-weight: 700;
}

.review-sidebar__card p {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.review-meta-list {
  display: grid;
  gap: var(--spacing-sm);
}

.review-meta-list div {
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.review-meta-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.review-meta-list dt {
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.review-meta-list dd {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ====================================
   コンテンツA - カードグリッド
   ==================================== */
.content-a {
  background: var(--color-bg-secondary);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(230, 57, 70, 0.1);
}

.card__video {
  position: relative;
  padding-top: 56.25%;
  /* 16:9 アスペクト比 */
  background: #000;
}

.card__video iframe,
.card__video video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.card__video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.card__video-placeholder::before {
  content: '▶';
  font-size: 3rem;
  color: var(--color-accent);
  opacity: 0.8;
}

.card__content {
  padding: var(--spacing-md);
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.card__description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.card__rating {
  color: var(--color-accent);
}

/* ====================================
   コンテンツB - 交互レイアウト
   ==================================== */
.content-b {
  background: var(--color-bg-primary);
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
  padding: var(--spacing-xl) 0;
}

.feature:nth-child(even) {
  direction: rtl;
}

.feature:nth-child(even)>* {
  direction: ltr;
}

.feature__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature__image::before {
  content: '';
  display: block;
  padding-top: 66.67%;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.feature__image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature__image-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.1) 0%, rgba(26, 26, 26, 1) 100%);
  font-size: 3rem;
  opacity: 0.3;
}

.feature__content {
  padding: var(--spacing-lg);
}

.feature__badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(230, 57, 70, 0.2);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
}

.feature__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.feature__text {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.feature__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent);
  font-weight: 600;
}

.feature__link:hover {
  color: var(--color-accent-hover);
}

.feature__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.feature__link:hover::after {
  transform: translateX(4px);
}

/* ====================================
   フッター
   ==================================== */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-bg-card);
  border-radius: 50%;
  border: 1px solid var(--color-border);
  font-size: 1.2rem;
  transition: all var(--transition-normal);
}

.footer__social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.footer__copyright {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm) var(--spacing-md);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer__links a:hover {
  color: var(--color-accent);
}

/* ====================================
   レスポンシブ
   ==================================== */
@media (max-width: 768px) {
  .header__inner {
    height: 70px;
  }

  .logo {
    max-width: 56vw;
    font-size: 0.95rem;
  }

  .nav__list {
    display: none;
  }

  .nav {
    gap: var(--spacing-sm);
  }

  .nav .btn {
    padding: 0.65rem 0.9rem;
    font-size: 0.78rem;
  }

  .hero {
    min-height: auto;
    padding-top: 96px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__btn {
    width: 100%;
    padding: 0.9rem 1rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .ranking-grid,
  .intent-grid,
  .guide-layout,
  .trust-section__inner,
  .ranking-article-hero__inner,
  .ranking-entry,
  .review-article-hero__inner,
  .review-article-layout,
  .fit-grid,
  .score-grid,
  .tag-archive-layout,
  .tag-review-card {
    grid-template-columns: 1fr;
  }

  .intent-card {
    min-height: auto;
  }

  .ranking-summary {
    position: static;
  }

  .ranking-entry__media {
    min-height: 180px;
  }

  .ranking-entry__points div {
    grid-template-columns: 1fr;
  }

  .review-article-hero__media {
    min-height: 240px;
  }

  .review-sidebar {
    position: static;
  }

  .tag-archive-sidebar {
    position: static;
  }

  .tag-review-card__media {
    min-height: 170px;
  }

  .feature {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .feature:nth-child(even) {
    direction: ltr;
  }

  .feature__content {
    padding: var(--spacing-sm) 0;
  }
}

/* ====================================
   アニメーション
   ==================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__content {
  animation: fadeInUp 1s ease-out;
}

.card {
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.card:nth-child(1) {
  animation-delay: 0.1s;
}

.card:nth-child(2) {
  animation-delay: 0.2s;
}

.card:nth-child(3) {
  animation-delay: 0.3s;
}

.card:nth-child(4) {
  animation-delay: 0.4s;
}

/* ====================================
   タグセクション
   ==================================== */
.tags-section {
  background: var(--color-bg-primary);
  padding: var(--spacing-xxl) 0;
  border-top: 1px solid var(--color-border);
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.tag:hover {
  background: rgba(230, 57, 70, 0.15);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.tag--active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
}

.tag--active:hover {
  background: var(--color-accent-hover);
  color: var(--color-text-primary);
}

.tag__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag--active .tag__count {
  background: rgba(0, 0, 0, 0.2);
}

/* タグページ専用 */
.tag-page-hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-xl);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  text-align: center;
}

.tag-page-hero__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.tag-page-hero__title span {
  color: var(--color-accent);
}

.tag-page-hero__count {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.tag-list-page {
  padding-top: 120px;
  padding-bottom: var(--spacing-xxl);
  min-height: 100vh;
}

.tag-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.tag-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-decoration: none;
  color: var(--color-text-primary);
}

.tag-list-item:hover {
  background: rgba(230, 57, 70, 0.1);
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.tag-list-item__name {
  font-weight: 500;
}

.tag-list-item__count {
  padding: 0.3rem 0.8rem;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.tag-list-item:hover .tag-list-item__count {
  background: var(--color-accent);
  color: var(--color-text-primary);
}

/* タグページ - コンテンツグリッド */
.tag-content-section {
  padding: var(--spacing-xxl) 0;
}

.tag-hub-page .hero__eyebrow,
.tag-page-hero .hero__eyebrow {
  margin-bottom: var(--spacing-sm);
}

.tag-hub-grid {
  margin-bottom: var(--spacing-xl);
}

.tag-hub-note {
  display: grid;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.tag-hub-note p {
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.tag-hub-note .btn {
  justify-self: start;
}

.tag-related-bar {
  padding: var(--spacing-lg) 0;
  background: var(--color-bg-secondary);
}

.tags-cloud--left {
  justify-content: flex-start;
}

.tag-archive-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--spacing-xl);
  align-items: start;
}

.tag-archive-main {
  display: grid;
  gap: var(--spacing-lg);
}

.tag-review-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.tag-review-card__media {
  min-height: 190px;
  background:
    linear-gradient(135deg, rgba(230, 57, 70, 0.14), rgba(255, 255, 255, 0.04)),
    linear-gradient(135deg, #151515 0%, #2a2a2a 100%);
  border-radius: var(--radius-md);
}

.tag-review-card__body {
  display: grid;
  align-content: center;
  gap: var(--spacing-sm);
}

.tag-review-card__label {
  color: var(--color-accent);
  font-size: 0.84rem;
  font-weight: 700;
}

.tag-review-card__title {
  font-size: clamp(1.25rem, 3vw, 1.8rem);
}

.tag-review-card__text {
  color: var(--color-text-secondary);
  line-height: 1.85;
}

.tag-review-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tag-archive-sidebar {
  position: sticky;
  top: 104px;
  display: grid;
  gap: var(--spacing-md);
}

/* ====================================
   年齢確認ページ
   ==================================== */
.btn--outline {
  background: transparent;
  border: 2px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.age-gate-page {
  min-height: 100vh;
}

.age-gate {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--spacing-lg);
  overflow: hidden;
}

.age-gate__backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 10, 10, 0.76) 0%, rgba(10, 10, 10, 0.92) 100%),
    linear-gradient(135deg, #121212 0%, #1d1d1d 45%, #0f0f0f 100%);
}

.age-gate__panel {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  padding: clamp(1.5rem, 4vw, 3rem);
  background: rgba(26, 26, 26, 0.94);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.age-gate__eyebrow {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.age-gate__logo {
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.age-gate__title {
  margin-bottom: var(--spacing-md);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.15;
}

.age-gate__text {
  max-width: 62ch;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.85;
}

.age-gate__notice {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.age-gate__notice-label {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.age-gate__list {
  display: grid;
  gap: 0.75rem;
  color: var(--color-text-secondary);
}

.age-gate__list li {
  position: relative;
  padding-left: 1.2rem;
}

.age-gate__list li::before {
  content: '';
  position: absolute;
  top: 0.62rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.age-gate__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.age-gate__button {
  min-width: 180px;
}

.footer__utility-link {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer__utility-link:hover {
  color: var(--color-accent);
}

/* ====================================
   信頼性ページ共通
   ==================================== */
.policy-page {
  min-height: 100vh;
  padding: 132px 0 var(--spacing-xxl);
  background:
    linear-gradient(180deg, rgba(26, 26, 26, 0.86) 0%, rgba(10, 10, 10, 1) 38%),
    var(--color-bg-primary);
}

.policy-page__inner {
  display: grid;
  gap: var(--spacing-lg);
}

.policy-hero {
  max-width: 840px;
  margin-bottom: var(--spacing-md);
}

.policy-hero__eyebrow {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.policy-hero__title {
  margin-bottom: var(--spacing-md);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.15;
}

.policy-hero__lead {
  max-width: 70ch;
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.9;
}

.policy-card {
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.policy-card__title {
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.policy-card__text {
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.policy-list {
  display: grid;
  gap: 0.9rem;
  color: var(--color-text-secondary);
}

.policy-list li {
  position: relative;
  padding-left: 1.2rem;
  line-height: 1.8;
}

.policy-list li::before {
  content: '';
  position: absolute;
  top: 0.72rem;
  left: 0;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-accent);
}

.policy-meta {
  display: grid;
  gap: var(--spacing-md);
}

.policy-meta div {
  display: grid;
  gap: 0.35rem;
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.policy-meta div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.policy-meta dt {
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.policy-meta dd {
  color: var(--color-text-primary);
  line-height: 1.8;
}

.policy-meta a,
.contact-box__value {
  color: var(--color-accent);
}

.contact-box {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.contact-box__label {
  display: inline-block;
  margin-bottom: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.contact-box__value {
  font-size: 1.1rem;
  font-weight: 600;
}

@media (max-width: 640px) {
  .age-gate__actions {
    flex-direction: column;
  }

  .age-gate__button {
    width: 100%;
  }
}