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

:root {
  --primary: #FF7A00;
  --primary-dark: #E06500;
  --primary-light: #FFA040;
  --primary-pale: #FFF3E0;
  --bg: #ffffff;
  --bg-gray: #f7f7f7;
  --bg-card: #ffffff;
  --text: #1a1a1a;
  --text-muted: #888;
  --text-light: #aaa;
  --border: #e8e8e8;
  --max-width: 1100px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-hover: 0 6px 24px rgba(0,0,0,0.13);
}

body {
  font-family: 'Hiragino Sans', 'Yu Gothic UI', 'Meiryo', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
}

a { color: var(--text); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ===== Header ===== */
header {
  background: #fff;
  border-bottom: 3px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100px;
}

.site-logo {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-wrap {
  height: 100px;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
}
.logo-wrap img {
  height: 154px;
  width: auto;
  margin-top: -24px;
}

header nav {
  grid-column: 3;
  justify-self: end;
}

/* スマホ：ロゴサイズ調整 */
@media (max-width: 768px) {
  .header-inner { height: 80px; }
  .logo-wrap { height: 80px; }
  .logo-wrap img { height: 123px; margin-top: -19px; }
}

nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
}
nav a {
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 4px;
  transition: all 0.15s;
}
nav a:hover {
  color: var(--primary);
  background: var(--primary-pale);
}

/* ===== Hero Photo ===== */
.hero-photo {
  width: 100%;
  max-height: 420px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 3px solid var(--primary);
}
.hero-photo img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center 55%;
  display: block;
}

/* ===== Hero / Featured ===== */
.hero {
  background: var(--primary-pale);
  border-bottom: 1px solid #ffe0b2;
  padding: 36px 20px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-text { flex: 1; min-width: 260px; }
.hero-text h1 {
  font-size: clamp(1.3rem, 3vw, 1.9rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 12px;
}
.hero-text h1 span { color: var(--primary); }
.hero-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tag {
  background: #fff;
  border: 1px solid #ffcc80;
  color: var(--primary-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}

.hero-icon {
  font-size: 6rem;
  line-height: 1;
  flex-shrink: 0;
}

/* ===== Category Bar ===== */
.cat-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  overflow-x: auto;
}

.cat-bar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 0;
  justify-content: center;
}

.cat-bar a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 12px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all 0.15s;
}
.cat-bar a:hover, .cat-bar a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ===== Page Layout ===== */
.page-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: start;
}

@media (max-width: 800px) {
  .page-wrap { grid-template-columns: 1fr; }
  .sidebar { display: none; }
}

/* ===== Section ===== */
.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
}
.section-label::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ===== Article Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.card-thumb {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, #ffe0b2, #fff3e0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  flex-shrink: 0;
}

.card-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-cat {
  display: inline-block;
  background: var(--primary-pale);
  color: var(--primary-dark);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 8px;
  width: fit-content;
}

.card-title {
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  flex: 1;
  margin-bottom: 10px;
}
.card:hover .card-title { color: var(--primary); }

.card-meta {
  font-size: 0.75rem;
  color: var(--text-light);
  display: flex;
  gap: 10px;
}

/* ===== Ranking Card ===== */
.rank-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }

.rank-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: box-shadow 0.2s;
}
.rank-item:hover { box-shadow: var(--shadow); }

.rank-num {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary);
  min-width: 32px;
  line-height: 1;
  margin-top: 2px;
}
.rank-num.gold   { color: #f59e0b; }
.rank-num.silver { color: #9ca3af; }
.rank-num.bronze { color: #b45309; }
.rank-num.rank4  { color: var(--primary); }
.rank-num.rank5  { color: var(--primary); }

.rank-content { flex: 1; }
.rank-title { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.rank-desc { font-size: 0.8rem; color: var(--text-muted); }

/* ===== Sidebar ===== */
.sidebar { display: flex; flex-direction: column; gap: 24px; }

.sidebar-block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sidebar-head {
  background: var(--primary);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 10px 16px;
}

.sidebar-body { padding: 16px; }

.sidebar-list { list-style: none; }
.sidebar-list li {
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  font-size: 0.82rem;
}
.sidebar-list li:last-child { border-bottom: none; padding-bottom: 0; }
.sidebar-list a { color: var(--text); line-height: 1.5; }
.sidebar-list a:hover { color: var(--primary); }

/* ===== Affiliate CTA ===== */
.cta-box {
  background: #fff;
  border: 2px solid var(--primary-light);
  border-left: 5px solid var(--primary);
  border-radius: var(--radius);
  padding: 24px;
  margin: 32px 0;
}

.cta-box h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.cta-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: background 0.2s, transform 0.15s;
  box-shadow: 0 2px 8px rgba(255,122,0,0.25);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  display: inline-block;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 10px 24px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.88rem;
  transition: all 0.2s;
}
.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
}

/* ===== Info Box ===== */
.info-box {
  background: var(--primary-pale);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.88rem;
}

/* ===== Article Page ===== */
.article-wrap {
  max-width: 780px;
  padding: 32px 20px 80px;
  margin: 0 auto;
}

.breadcrumb {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--text-light); }

.article-category {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 3px;
  margin-bottom: 14px;
}

.article-title {
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 14px;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

/* Table of Contents */
.toc {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 28px 0;
}
.toc h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.toc ol { margin-left: 18px; }
.toc li { margin-bottom: 6px; font-size: 0.85rem; }
.toc a { color: var(--text); }
.toc a:hover { color: var(--primary); }

/* Article body */
.article-body h2 {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  background: var(--primary);
  padding: 10px 16px;
  border-radius: 4px;
  margin: 36px 0 16px;
}

.article-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
  border-left: 4px solid var(--primary);
  padding-left: 12px;
  margin: 24px 0 12px;
}

.article-body p { margin-bottom: 16px; font-size: 0.93rem; }

.article-body ul, .article-body ol {
  margin: 10px 0 16px 20px;
}
.article-body li { margin-bottom: 8px; font-size: 0.93rem; }

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.85rem;
}
.article-body th {
  background: var(--primary);
  color: #fff;
  padding: 10px 12px;
  text-align: left;
  font-size: 0.82rem;
}
.article-body td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.article-body tr:nth-child(even) td { background: var(--bg-gray); }

/* ===== Affiliate Sections (homepage) ===== */
.aff-section {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.aff-icon { font-size: 2.5rem; flex-shrink: 0; margin-top: 4px; }

.aff-body { flex: 1; min-width: 200px; }
.aff-body h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 6px; color: var(--primary-dark); }
.aff-body p { font-size: 0.83rem; color: var(--text-muted); margin-bottom: 12px; }

/* ===== Footer ===== */
footer {
  background: #1a1a1a;
  color: rgba(255,255,255,0.65);
  padding: 48px 20px 24px;
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
}

.footer-logo { font-size: 1.1rem; font-weight: 800; color: #fff; margin-bottom: 10px; }
.footer-logo span { color: var(--primary); }
.footer-desc { font-size: 0.82rem; line-height: 1.7; }

.footer-col h4 { font-size: 0.82rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 0.8rem; color: rgba(255,255,255,0.55); transition: color 0.15s; }
.footer-col a:hover { color: var(--primary); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.75rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  nav ul { display: none; }
  .hero-icon { display: none; }
  .card-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .card-grid { grid-template-columns: 1fr; }
}