/* ===== 内页样式 — 详情页通用 ======================================= */

/* 面包屑 */
.crumbs {
  padding: 104px 0 24px; background: var(--paper);
  border-bottom: 1px solid var(--line);
  font-size: 13px; color: var(--text-3);
}
.crumbs .wrap { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--ink); }
.crumbs span { color: var(--text-3); }
.crumbs #crumb-name, .crumbs > .wrap > span:last-child { color: var(--ink); font-weight: 500; }

/* ===== 通用 detail-grid ============================================ */
.detail-grid { display: grid; grid-template-columns: 1fr 360px; gap: 60px; }
@media (max-width: 960px) { .detail-grid { grid-template-columns: 1fr; gap: 40px; } }

.detail-main h2 {
  font-size: clamp(26px, 3vw, 36px); letter-spacing: -.015em; margin-bottom: 16px;
}
.detail-main h3 { font-size: 20px; margin-bottom: 14px; }
.detail-main p { color: var(--text-2); line-height: 1.85; font-size: 16px; margin-bottom: 16px; }

.check-list { display: flex; flex-direction: column; gap: 14px; }
.check-list li {
  position: relative; padding: 16px 20px 16px 56px;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 15px; color: var(--text-2); line-height: 1.6;
}
.check-list li::before {
  content: "✓"; position: absolute; left: 18px; top: 14px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--green); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
}
.check-list li strong { color: var(--ink); display: block; margin-bottom: 2px; }

.callout {
  padding: 28px 32px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--green-soft) 0%, var(--cream) 100%);
  border-left: 4px solid var(--green);
  font-size: 16px; line-height: 1.8; color: var(--ink);
  position: relative;
}
.callout::before {
  content: "TIP"; position: absolute; top: 18px; right: 22px;
  font-size: 10px; font-weight: 700; letter-spacing: .25em; color: var(--green-deep);
  background: var(--white); padding: 4px 10px; border-radius: 999px;
}

/* 侧边栏 */
.detail-side { display: flex; flex-direction: column; gap: 20px; }
.side-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.side-card.alt { background: var(--ink); color: var(--white); border-color: var(--ink); }
.side-card.alt h3 { color: var(--white); }
.side-card.alt a { color: var(--white); }
.side-card h3 { font-size: 16px; margin-bottom: 16px; }
.side-card p { font-size: 14px; color: var(--text-2); line-height: 1.6; margin-bottom: 18px; }
.side-card .btn { font-size: 14px; padding: 14px 22px; }
.side-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.side-list li { font-size: 14px; color: var(--text-2); padding: 6px 0; }
.side-card.alt .side-list li { color: rgba(255,255,255,.85); }

.side-reco { display: flex; flex-direction: column; gap: 14px; }
.side-reco a {
  display: flex; align-items: center; gap: 14px; padding: 8px 0;
  border-bottom: 1px solid var(--line); font-size: 14px;
}
.side-reco li:last-child a { border-bottom: 0; }
.side-reco .thumb { width: 48px; height: 48px; border-radius: 10px; overflow: hidden; background: var(--paper-2); flex-shrink: 0; }
.side-reco .thumb img { width: 100%; height: 100%; object-fit: cover; }
.side-reco strong { color: var(--ink); display: block; font-size: 14px; }
.side-reco span { color: var(--text-3); font-size: 12px; }
.side-card.alt .side-reco strong { color: var(--white); }
.side-card.alt .side-reco span { color: rgba(255,255,255,.55); }
.side-card.alt .side-reco a { border-bottom-color: rgba(255,255,255,.1); }

/* ===== Box Detail Hero ============================================ */
.box-hero { background: var(--paper); padding: 60px 0 80px; }
.box-hero-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
@media (max-width: 960px) { .box-hero-grid { grid-template-columns: 1fr; gap: 40px; } }
.box-hero-art {
  aspect-ratio: 1/1; border-radius: var(--radius-xl); overflow: hidden;
  background: var(--ink); box-shadow: var(--shadow-3);
}
.box-hero-art img { width: 100%; height: 100%; object-fit: cover; }
.box-hero-info h1 {
  font-size: clamp(36px, 5vw, 64px); letter-spacing: -.025em; line-height: 1.05; margin: 16px 0 8px;
}
.box-hero-info .en { color: var(--text-3); letter-spacing: .15em; text-transform: uppercase; font-size: 13px; margin-bottom: 20px; }
.box-hero-info .summary { font-size: 18px; color: var(--text-2); line-height: 1.7; margin: 24px 0 32px; max-width: 540px; }
.price-row {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
  padding: 24px 0; border-block: 1px solid var(--line);
}
.price strong { font-size: 48px; font-weight: 700; color: var(--ink); letter-spacing: -.02em; line-height: 1; }
.price strong::before { content: "¥"; font-size: .55em; color: var(--green); margin-right: 4px; vertical-align: .25em; }
.price span { display: block; color: var(--text-3); font-size: 13px; margin-top: 6px; }

.meta-list { display: flex; flex-direction: column; gap: 14px; margin-top: 24px; }
.meta-list li { display: flex; align-items: center; justify-content: space-between; font-size: 14px; padding: 4px 0; }
.meta-list li span { color: var(--text-3); }
.meta-list li strong { color: var(--ink); font-weight: 600; }

/* ===== Case Hero ================================================== */
.case-hero { background: var(--paper); padding: 60px 0 80px; }
.case-hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
@media (max-width: 960px) { .case-hero-grid { grid-template-columns: 1fr; } }
.case-hero-art {
  aspect-ratio: 1/1; border-radius: var(--radius-xl); overflow: hidden;
  background: var(--ink); box-shadow: var(--shadow-3);
}
.case-hero-art img { width: 100%; height: 100%; object-fit: cover; }
.case-hero-info h1 {
  font-size: clamp(36px, 5vw, 60px); letter-spacing: -.025em; line-height: 1.05; margin: 16px 0 8px;
}
.case-hero-info .subtitle {
  font-size: 18px; color: var(--green-deep); font-weight: 600; margin: 16px 0 24px;
}
.case-hero-info .summary { color: var(--text-2); line-height: 1.8; font-size: 16px; }
.case-meta { display: flex; flex-direction: column; gap: 12px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.case-meta li { display: flex; justify-content: space-between; font-size: 14px; }
.case-meta li span { color: var(--text-3); }
.case-meta li strong { color: var(--ink); font-weight: 600; }

.case-results {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 16px;
}
@media (max-width: 560px) { .case-results { grid-template-columns: 1fr; } }
.case-results .item {
  padding: 28px 24px; background: var(--ink); color: var(--white);
  border-radius: var(--radius-lg); position: relative; overflow: hidden;
}
.case-results .item::before {
  content: ""; position: absolute; top: -50%; right: -30%; width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(0,166,81,.2) 0%, transparent 70%);
}
.case-results .metric { font-size: clamp(28px, 3.5vw, 42px); font-weight: 700; line-height: 1; margin-bottom: 8px; position: relative; }
.case-results .label { font-size: 13px; color: rgba(255,255,255,.65); line-height: 1.5; position: relative; }

.testimonial {
  background: var(--paper-2); border-radius: var(--radius-lg); padding: 36px 40px;
  border-left: 4px solid var(--green); position: relative;
  margin-top: 16px;
}
.testimonial p {
  font-size: 18px; line-height: 1.8; color: var(--ink); font-weight: 500;
  font-style: italic; margin: 0;
}
.testimonial cite {
  display: block; margin-top: 16px; font-size: 13px;
  color: var(--text-3); font-style: normal; letter-spacing: .05em;
}

/* ===== Article (News) ============================================= */
.article { background: var(--paper); padding: 60px 0 80px; }
.article-head { max-width: 760px; margin: 0 auto 40px; text-align: center; }
.article-head h1 {
  font-size: clamp(32px, 4.4vw, 52px); letter-spacing: -.02em; line-height: 1.15;
  margin: 18px 0 20px;
}
.article-meta { font-size: 13px; color: var(--text-3); display: flex; align-items: center; justify-content: center; gap: 8px; }
.article-meta .dot { color: var(--line-2); }
.article-summary { color: var(--text-2); font-size: 18px; line-height: 1.7; margin-top: 20px; }

.article-cover {
  max-width: 980px; margin: 0 auto 56px; aspect-ratio: 16/9; overflow: hidden;
  border-radius: var(--radius-xl); background: var(--paper-2);
  box-shadow: var(--shadow-2);
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; }

.article-body { max-width: 720px; margin: 0 auto; }
.article-body p { color: var(--text-2); line-height: 1.95; font-size: 17px; margin: 0 0 24px; }
.article-body p:first-child::first-letter {
  font-size: 64px; line-height: 1; float: left; font-weight: 700; color: var(--ink);
  margin: 4px 12px 0 0; letter-spacing: -.02em;
}

.article-share { max-width: 720px; margin: 56px auto 0; padding-top: 32px; border-top: 1px solid var(--line); }
.article-share h3 { font-size: 14px; color: var(--text-3); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 16px; }
.share-row { display: flex; gap: 10px; flex-wrap: wrap; }
.share-row .btn { padding: 10px 18px; font-size: 13px; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 720px) { .related-grid { grid-template-columns: 1fr; } }

/* ===== Placeholder =============================================== */
.placeholder {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  background: var(--paper-2); color: var(--text-2); font-size: 14px;
}