/* ==========================================================================
   案例详情
   ========================================================================== */

.case-hero {
  position: relative;
  padding-top: 180px;
  padding-bottom: 120px;
  color: var(--color-cream);
  background: linear-gradient(135deg, #2C2620 0%, #3D3329 50%, #4A3D32 100%);
  overflow: hidden;
}

/* 装饰元素 - 抽象几何 */
.case-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 85% 15%, rgba(184, 147, 92, 0.25) 0%, transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(212, 129, 78, 0.18) 0%, transparent 50%);
}

.case-hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(245, 239, 230, 0.06) 1px, transparent 0);
  background-size: 32px 32px;
  opacity: 0.5;
}

/* 装饰几何 — 大圆环 */
.case-hero-bg::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -120px;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  border: 1px solid rgba(184, 147, 92, 0.15);
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(184, 147, 92, 0.05), transparent 70%);
}

.case-hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.case-hero-tags {
  display: flex;
  gap: 12px;
  margin: 32px 0;
  flex-wrap: wrap;
}

.case-title {
  font-family: var(--font-serif);
  font-size: clamp(56px, 7.5vw, 120px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: var(--tracking-tight);
  color: var(--color-cream);
  margin-bottom: 28px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.case-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.8vw, 22px);
  line-height: 1.7;
  color: rgba(245, 239, 230, 0.78);
  margin-bottom: 64px;
  max-width: 720px;
  font-weight: 400;
}

.case-subtitle em {
  font-style: italic;
  color: var(--color-gold);
  font-weight: 500;
}

.case-hero-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid rgba(245, 239, 230, 0.15);
}

@media (max-width: 640px) {
  .case-hero-info {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

.case-info-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-info-label {
  font-size: var(--fs-xs);
  color: var(--color-gold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

.case-info-value {
  font-family: var(--font-serif);
  font-size: var(--fs-md);
  color: var(--color-bg);
  line-height: 1.4;
}

/* ---------- 内容布局 ---------- */
.case-intro-grid {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 80px;
}

@media (max-width: 1024px) {
  .case-intro-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.case-intro-content .body-lg {
  font-size: var(--fs-md);
  line-height: 1.85;
  color: var(--color-text);
}

.case-intro-content .body-lg strong {
  color: var(--color-ink);
  font-weight: 500;
}

/* ---------- 视觉展示 ---------- */
/* 核心原则：每张图片按真实比例完整展示，不裁剪、不变形 */
.case-visual-full {
  max-width: 720px;
  margin: 0 auto 40px;
}

.case-visual-row {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  max-width: 1100px;
  margin: 0 auto 40px;
  justify-content: center;
}

.case-visual-half {
  flex: 1 1 calc(50% - 16px);
  max-width: 540px;
  min-width: 0;
}

@media (max-width: 640px) {
  .case-visual-half {
    flex: 1 1 100%;
  }
}

.case-visual-image {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
  position: relative;
  overflow: hidden;
  background: var(--color-bg-alt);
  box-shadow: var(--shadow-sm);
}

/* 关键：图片按真实比例展示，完整可见 */
.case-visual-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--duration-slow) var(--ease-out);
}

.case-visual-image:hover img {
  transform: scale(1.02);
}

.case-visual-1 { background: linear-gradient(135deg, #B8935C, #5C4A3D); }
.case-visual-2 { background: linear-gradient(135deg, #F5EFE6, #E8DCC8); }
.case-visual-3 { background: linear-gradient(135deg, #D4814E, #B85C38); }
.case-visual-4 { background: linear-gradient(135deg, #1A1714, #5C4A3D); }

.case-visual-mark-large {
  font-family: var(--font-serif);
  font-size: clamp(60px, 8vw, 120px);
  font-weight: 500;
  font-style: italic;
  color: rgba(245, 239, 230, 0.7);
  letter-spacing: var(--tracking-tight);
}

.case-visual-2 .case-visual-mark-large,
.case-visual-mark-large.light {
  color: rgba(44, 38, 32, 0.7);
}

.case-visual-mark-small {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-widest);
  color: rgba(245, 239, 230, 0.6);
  text-transform: uppercase;
}

.case-visual-2 .case-visual-mark-small {
  color: rgba(44, 38, 32, 0.6);
}

.case-visual-caption {
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--color-muted);
  margin-top: 16px;
  font-style: italic;
}

/* ---------- 项目成果 ---------- */
.case-results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 60px;
}

@media (max-width: 1024px) {
  .case-results-grid {
    grid-template-columns: 1fr;
  }
}

.case-result-card {
  background: var(--color-surface);
  padding: 48px 32px;
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--color-line);
  transition: all var(--duration-base) var(--ease-out);
}

.case-result-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.case-result-num {
  font-family: var(--font-serif);
  font-size: clamp(48px, 4vw, 72px);
  font-weight: 500;
  color: var(--color-gold-deep);
  line-height: 1;
  margin-bottom: 16px;
}

.case-result-num small {
  font-size: 0.5em;
  color: var(--color-ink);
}

.case-result-label {
  font-size: var(--fs-md);
  font-weight: 500;
  color: var(--color-ink);
  margin-bottom: 12px;
}

.case-result-desc {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  line-height: 1.7;
}

/* ---------- 客户证言 ---------- */
.case-testimonial-inner {
  background: var(--color-ink);
  color: var(--color-cream);
  padding: 80px 60px;
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
}

@media (max-width: 640px) {
  .case-testimonial-inner {
    padding: 60px 32px;
  }
}

.case-testimonial-stars {
  color: var(--color-gold);
  font-size: 16px;
  letter-spacing: 4px;
  margin-bottom: 32px;
}

.case-testimonial-text {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.7;
  font-style: italic;
  color: var(--color-bg);
  margin-bottom: 32px;
}

.case-testimonial-text strong {
  color: var(--color-gold);
  font-weight: 500;
  font-style: normal;
}

.case-testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--fs-sm);
  color: rgba(245, 239, 230, 0.7);
}

.case-testimonial-author strong {
  color: var(--color-bg);
  font-weight: 500;
  font-size: var(--fs-base);
}

/* ---------- 相关案例 ---------- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
}