/* 客户案例 C-01 / C-02 */

.cases-page .page-hero,
.cases-page .section,
.cases-page .final-cta,
.case-detail .page-hero,
.case-detail .section,
.case-detail .final-cta {
  position: relative;
  z-index: 2;
}

.case-detail .page-hero {
  min-height: 58vh;
}

/* —— C-01 统计条 —— */
.case-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.case-stat {
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.55);
}

.case-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 8px;
}

.case-stat span {
  color: var(--muted);
  font-size: var(--text-sm);
}

/* —— C-01 筛选 —— */
.case-filters {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.filter-label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-right: 6px;
  min-width: 3.5em;
}

.filter-chip {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: var(--text-sm);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--dur-fast), color var(--dur-fast), background var(--dur-fast);
  min-height: 40px;
}

.filter-chip:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.filter-chip.is-active {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.case-empty {
  display: none;
  padding: var(--space-5);
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
}

.case-empty.is-visible {
  display: block;
}

/* —— C-01 卡片 —— */
.case-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.65);
  overflow: hidden;
  transition: border-color var(--dur), transform var(--dur);
}

.case-card:hover {
  border-color: rgba(94, 200, 255, 0.4);
  transform: translateY(-3px);
}

.case-card.is-hidden {
  display: none;
}

.case-card-media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.case-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.case-card:hover .case-card-media img {
  transform: scale(1.04);
}

.case-card-logo {
  position: absolute;
  left: 14px;
  bottom: 14px;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.85);
  object-fit: cover;
}

.case-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-3);
  gap: 10px;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.case-tag-pill {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(94, 200, 255, 0.3);
  background: var(--accent-soft);
  padding: 4px 8px;
  border-radius: 4px;
  font-weight: 600;
}

.case-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.case-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
}

.case-card .btn {
  align-self: flex-start;
  margin-top: 6px;
  padding: 10px 16px;
  font-size: var(--text-sm);
}

/* —— C-02 Hero 客户条 —— */
.case-hero-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: var(--space-3);
}

.case-hero-brand img {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.7);
  object-fit: cover;
}

.case-hero-brand .brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.case-hero-brand .brand-meta {
  display: block;
  font-size: var(--text-sm);
  color: var(--muted);
  margin-top: 2px;
}

.case-result-line {
  margin: var(--space-2) 0 0;
  color: var(--accent);
  font-weight: 600;
  font-size: 1.05rem;
}

/* —— C-02 挑战引用 —— */
.challenge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.challenge-item {
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.55);
}

.challenge-item h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 8px;
}

.challenge-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.challenge-quote {
  margin: 12px 0 0;
  padding: 12px 0 0 14px;
  border-left: 2px solid var(--accent);
  color: var(--text);
  font-size: 0.92rem;
  font-style: italic;
}

/* —— C-02 选择原因 —— */
.reason-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.reason-list li {
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(10, 18, 32, 0.55);
}

.reason-list strong {
  display: block;
  font-family: var(--font-display);
  margin-bottom: 8px;
}

.reason-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* —— C-02 时间线 —— */
.case-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
  border-left: 2px solid var(--line);
}

.case-timeline li {
  position: relative;
  padding: 0 0 var(--space-4) var(--space-3);
}

.case-timeline li:last-child {
  padding-bottom: 0;
}

.case-timeline li::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(94, 200, 255, 0.15);
}

.case-timeline time {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.case-timeline h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 6px;
}

.case-timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* —— C-02 成果表 —— */
.outcome-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.outcome-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.outcome-table th,
.outcome-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
}

.outcome-table th {
  background: rgba(10, 18, 32, 0.9);
  color: var(--accent);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.outcome-table td {
  color: var(--muted);
  background: rgba(13, 22, 38, 0.4);
}

.outcome-table tr:last-child td {
  border-bottom: none;
}

.outcome-table td:first-child {
  color: var(--text);
  font-weight: 600;
}

.outcome-table .delta {
  color: var(--accent);
  font-weight: 700;
}

/* —— C-02 客户评价（字母头像，无真人照片） —— */
.quote-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse 70% 50% at 0% 0%, rgba(94, 200, 255, 0.08), transparent 55%),
    rgba(13, 22, 38, 0.65);
}

.quote-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(94, 200, 255, 0.35);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  flex-shrink: 0;
}

.quote-card blockquote {
  margin: 0 0 14px;
  font-size: 1.1rem;
  line-height: 1.65;
  color: var(--text);
}

.quote-card cite {
  display: block;
  font-style: normal;
  font-size: var(--text-sm);
  color: var(--muted);
}

.quote-card cite strong {
  color: var(--text);
  font-weight: 600;
}

/* —— 相关推荐 —— */
.related-case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

@media (max-width: 980px) {
  .case-stats,
  .case-card-grid,
  .challenge-grid,
  .reason-list,
  .related-case-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .reason-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .case-stats,
  .challenge-grid,
  .related-case-grid {
    grid-template-columns: 1fr;
  }

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

  .case-hero-brand {
    align-items: flex-start;
  }

  .filter-row {
    flex-wrap: nowrap;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .filter-label {
    flex: 0 0 auto;
    position: sticky;
    left: 0;
    z-index: 1;
    background: linear-gradient(90deg, var(--bg) 70%, transparent);
    padding-right: 10px;
    margin-right: 0;
  }

  .filter-row .filter-chip {
    flex: 0 0 auto;
  }

  .timeline-item {
    padding-left: 16px;
  }
}

@media (hover: none) {
  .case-card:hover {
    transform: none;
  }
}