.inspiration-section {
  padding: 6rem 0;
  position: relative;
}

.inspiration-section:nth-child(even) {
  background: var(--bg-secondary);
}

.inspiration-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  gap: 2rem;
}

.inspiration-header-left {
  max-width: 650px;
}

.inspiration-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.inspiration-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.inspiration-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gold-500);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  letter-spacing: 0.1em;
  transition: all 0.3s var(--ease-smooth);
  white-space: nowrap;
}

.inspiration-more:hover {
  gap: 0.75rem;
}

.inspiration-more svg {
  width: 18px;
  height: 18px;
}

.inspiration-tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.inspiration-tab {
  padding: 0.625rem 1.5rem;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
}

.inspiration-tab:hover,
.inspiration-tab.active {
  background: var(--gold-500);
  color: var(--ink-950);
  border-color: var(--gold-500);
}

.masonry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.masonry-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  transition: all 0.4s var(--ease-smooth);
}

.masonry-item:hover {
  border-color: var(--border-medium);
  transform: translateY(-4px);
  box-shadow: var(--shadow-deep);
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease-smooth);
}

.masonry-item:hover img {
  transform: scale(1.05);
}

.masonry-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,10,10,0.85) 100%);
  opacity: 0;
  transition: opacity 0.4s var(--ease-smooth);
}

.masonry-item:hover .masonry-item-overlay {
  opacity: 1;
}

.masonry-item-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem;
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.4s var(--ease-smooth);
}

.masonry-item:hover .masonry-item-info {
  transform: translateY(0);
  opacity: 1;
}

.masonry-item-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
}

.masonry-item-desc {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.color-palette-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: all 0.4s var(--ease-smooth);
  cursor: pointer;
}

.color-palette-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-6px);
  box-shadow: var(--shadow-deep);
}

.color-palette-preview {
  display: flex;
  height: 120px;
}

.color-palette-color {
  flex: 1;
  position: relative;
  transition: flex 0.3s var(--ease-smooth);
}

.color-palette-color:hover {
  flex: 2;
}

.color-palette-color::after {
  content: attr(data-color);
  position: absolute;
  bottom: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.6875rem;
  color: rgba(255,255,255,0.8);
  opacity: 0;
  transition: opacity 0.3s;
}

.color-palette-color:hover::after {
  opacity: 1;
}

.color-palette-info {
  padding: 1.25rem;
}

.color-palette-name {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
}

.color-palette-style {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.ai-inspiration {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border: 1px solid var(--border-medium);
  padding: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ai-inspiration::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(238, 17, 17, 0.05) 0%, transparent 70%);
  animation: aiGlow 8s ease-in-out infinite alternate;
}

@keyframes aiGlow {
  from { transform: translate(0, 0); }
  to { transform: translate(5%, 5%); }
}

.ai-inspiration-inner {
  position: relative;
  z-index: 1;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(238, 17, 17, 0.08);
  border: 1px solid var(--border-medium);
  color: var(--gold-400);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
}

.ai-badge svg {
  width: 16px;
  height: 16px;
}

.ai-inspiration h3 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.ai-inspiration p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 2rem;
}

.ai-input-group {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: 0.75rem;
}

.ai-input {
  flex: 1;
  padding: 1rem 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.3s;
}

.ai-input:focus {
  border-color: var(--gold-500);
}

.ai-input::placeholder {
  color: var(--text-tertiary);
}

.cases-filter {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.625rem 1.5rem;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gold-500);
  color: var(--ink-950);
  border-color: var(--gold-500);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.case-item {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  transition: all 0.4s var(--ease-smooth);
  background: var(--bg-secondary);
}

.case-item:hover {
  border-color: var(--border-medium);
  transform: translateY(-8px);
  box-shadow: var(--shadow-deep);
}

.case-item-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.case-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-smooth);
}

.case-item:hover .case-item-image img {
  transform: scale(1.08);
}

.case-item-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.375rem 0.875rem;
  background: rgba(10, 10, 10, 0.8);
  border: 1px solid var(--border-medium);
  color: var(--gold-400);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  backdrop-filter: blur(10px);
}

.case-item-body {
  padding: 1.5rem;
}

.case-item-location {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--gold-400);
  margin-bottom: 0.5rem;
}

.case-item-location svg {
  width: 14px;
  height: 14px;
}

.case-item-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.case-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.solutions-hero {
  text-align: center;
  padding: 4rem 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.solution-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.solution-section:last-child {
  border-bottom: none;
}

.solution-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.solution-layout.reverse .solution-image {
  order: 2;
}

.solution-tag {
  display: inline-block;
  padding: 0.375rem 1rem;
  background: rgba(238, 17, 17, 0.08);
  border: 1px solid var(--border-medium);
  color: var(--gold-400);
  font-size: 0.8125rem;
  letter-spacing: 0.15em;
  margin-bottom: 1.25rem;
  font-family: var(--font-display);
}

.solution-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.solution-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 2rem;
}

.solution-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.solution-feature {
  display: flex;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
}

.solution-feature-icon {
  color: var(--gold-500);
  flex-shrink: 0;
}

.solution-feature-icon svg {
  width: 20px;
  height: 20px;
}

.solution-feature-text h4 {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.solution-feature-text p {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.solution-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.solution-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.system-overview {
  text-align: center;
  padding: 4rem 0;
}

.system-exploded {
  max-width: 1100px;
  width: 100%;
  margin: 2.5rem auto;
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
}

.system-exploded img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  animation: explodedZoom 12s ease-in-out infinite alternate;
}

@keyframes explodedZoom {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.05) translate(-1%, -0.5%); }
  100% { transform: scale(1.08) translate(1%, 0.5%); }
}

@keyframes explodedZoom {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.05) translate(-1%, -0.5%); }
  100% { transform: scale(1.08) translate(1%, 0.5%); }
}

.system-exploded-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.exploded-label {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.8125rem;
  color: #ffffff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
  pointer-events: auto;
}

.exploded-label-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 15px var(--gold-500);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.exploded-label-line {
  width: 40px;
  height: 1px;
  background: var(--gold-500);
}

.seven-systems {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.system-card {
  padding: 2rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  transition: all 0.4s var(--ease-smooth);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.system-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gold-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-smooth);
}

.system-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-6px);
  box-shadow: var(--shadow-deep);
}

.system-card:hover::before {
  transform: scaleX(1);
}

.system-card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(238, 17, 17, 0.08);
  border: 1px solid var(--border-medium);
  color: var(--gold-500);
  margin-bottom: 1.5rem;
}

.system-card-icon svg {
  width: 26px;
  height: 26px;
}

.system-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.system-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.system-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gold-500);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.system-card-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s;
}

.system-card:hover .system-card-link svg {
  transform: translateX(4px);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.guide-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: all 0.4s var(--ease-smooth);
  cursor: pointer;
}

.guide-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-6px);
  box-shadow: var(--shadow-deep);
}

.guide-card-image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.guide-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-smooth);
}

.guide-card:hover .guide-card-image img {
  transform: scale(1.08);
}

.guide-card-body {
  padding: 1.75rem;
}

.guide-card-category {
  font-size: 0.8125rem;
  color: var(--gold-500);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.guide-card-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.guide-card-desc {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
  line-height: 1.7;
}

.knowledge-hub {
  background: var(--bg-secondary);
  padding: 4rem 0;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

.knowledge-articles {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.knowledge-article {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s;
  cursor: pointer;
}

.knowledge-article:hover {
  border-color: var(--border-medium);
}

.knowledge-article-image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.knowledge-article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.knowledge-article-content h4 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.knowledge-article-content p {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.knowledge-article-meta {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  display: flex;
  gap: 1rem;
}

.about-hero {
  padding: 5rem 0;
  text-align: center;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.about-story {
  padding: 4rem 0;
}

.story-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: stretch;
}

.story-image {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  height: 100%;
  border-radius: 12px;
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.timeline-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.timeline-container {
  position: relative;
  max-width: 800px;
  margin: 3rem auto 0;
}

.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-medium);
  transform: translateX(-50%);
}

.timeline-item {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  text-align: right;
  order: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
  order: 2;
}

.timeline-item:nth-child(odd) .timeline-year {
  order: 3;
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--gold-500);
}

.timeline-dot {
  width: 16px;
  height: 16px;
  background: var(--gold-500);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 0 2px var(--gold-500);
  margin: 0.75rem auto 0;
  position: relative;
  z-index: 2;
}

.timeline-content h4 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.timeline-content p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 发展历程 - 分阶段布局 */
.timeline-stages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.timeline-stage {
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 2rem 1.75rem;
  position: relative;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.timeline-stage::before {
  content: '';
  position: absolute;
  top: 0;
  left: 2rem;
  right: 2rem;
  height: 3px;
  background: var(--gold-500);
  border-radius: 0 0 3px 3px;
}

.timeline-stage:hover {
  box-shadow: 0 8px 30px rgba(238, 17, 17, 0.08);
  transform: translateY(-2px);
}

.timeline-stage-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px dashed var(--border-medium);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.timeline-stage-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.timeline-stage-range {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold-500);
  letter-spacing: 0.5px;
}

.timeline-stage-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.timeline-event {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 1rem;
  align-items: start;
}

.timeline-event-year {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--gold-500);
  padding-top: 2px;
  white-space: nowrap;
}

.timeline-event-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

@media (max-width: 900px) {
  .timeline-stages {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .timeline-stage {
    padding: 1.5rem 1.25rem;
  }
  .timeline-stage-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }
  .timeline-stage-title {
    font-size: 1.25rem;
  }
  .timeline-event {
    grid-template-columns: 48px 1fr;
    gap: 0.75rem;
  }
  .timeline-event-year {
    font-size: 1rem;
  }
  .timeline-event-text {
    font-size: 0.875rem;
    line-height: 1.7;
  }
}

.experts-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.75rem;
  margin-top: 3rem;
}

.expert-card {
  text-align: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s var(--ease-smooth);
  display: flex;
  flex-direction: column;
}

.expert-card:hover {
  border-color: var(--gold-500);
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(238, 17, 17, 0.1);
}

.expert-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--bg-secondary);
  position: relative;
}

.expert-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.25));
  pointer-events: none;
}

.expert-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease-smooth);
}

.expert-card:hover .expert-photo img {
  transform: scale(1.04);
}

.expert-info {
  padding: 1.25rem 1rem 1.5rem;
}

.expert-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--text-primary);
}

.expert-title {
  font-size: 0.8125rem;
  color: var(--gold-500);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.expert-desc {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.stats-section {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-item-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 600;
  line-height: 1;
  margin-bottom: 0.75rem;
}

.stat-item-label {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
}

.booking-section {
  padding: 4rem 0;
}

.booking-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.booking-info {
  position: sticky;
  top: calc(var(--nav-height) + 2rem);
}

.booking-form-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 2.5rem;
}

.booking-form-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.booking-form-subtitle {
  color: var(--text-tertiary);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.form-label .required {
  color: var(--vermilion-400);
  margin-left: 4px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.3s;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--gold-500);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.7;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.form-radio {
  padding: 0.625rem 1.25rem;
  border: 1px solid var(--border-subtle);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.3s;
}

.form-radio:hover,
.form-radio.active {
  border-color: var(--gold-500);
  color: var(--gold-500);
  background: rgba(238, 17, 17, 0.05);
}

.booking-process {
  margin-top: 3rem;
}

.booking-process h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.booking-process-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.booking-process-step {
  display: flex;
  gap: 1rem;
}

.booking-process-number {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(238, 17, 17, 0.08);
  border: 1px solid var(--border-medium);
  color: var(--gold-500);
  font-family: var(--font-display);
  font-weight: 600;
}

.booking-process-text h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.booking-process-text p {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.team-preview {
  margin-top: 3rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border-subtle);
}

.team-preview h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.team-preview-list {
  display: flex;
  gap: 1.5rem;
}

.team-preview-item {
  text-align: center;
}

.team-preview-avatar {
  width: 60px;
  height: 60px;
  margin: 0 auto 0.75rem;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border-medium);
}

.team-preview-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-preview-name {
  font-size: 0.875rem;
  font-weight: 500;
}

.team-preview-role {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.popular-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.popular-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.3s;
}

.popular-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.popular-item:hover .popular-title {
  color: var(--gold-500);
}

.popular-number {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  flex-shrink: 0;
}

.popular-title {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  transition: color 0.3s;
}

.sidebar-widget {
  padding: 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
}

.faq-section {
  padding: 4rem 0;
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 3rem auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  cursor: pointer;
  transition: color 0.3s;
}

.faq-question:hover {
  color: var(--gold-500);
}

.faq-question h4 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
}

.faq-toggle {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
}

.faq-toggle::before,
.faq-toggle::after {
  content: '';
  position: absolute;
  background: currentColor;
  transition: all 0.3s;
}

.faq-toggle::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.faq-toggle::after {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-item.active .faq-toggle::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-smooth);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding-bottom: 1.5rem;
  color: var(--text-secondary);
  line-height: 2;
  font-size: 0.9375rem;
}

@media (min-width: 1400px) {
  .masonry-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }

  .cases-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1200px) {
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .systems-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .experts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .guide-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .masonry-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .solution-section {
    padding: 3rem 0;
  }
  
  .solution-layout,
  .solution-layout.reverse {
    grid-template-columns: 1fr;
  }
  
  .solution-layout.reverse .solution-image {
    order: -1;
  }

  .solution-image {
    max-width: 600px;
    margin: 0 auto;
    aspect-ratio: 16/10;
  }
  
  .story-layout {
    grid-template-columns: 1fr;
  }

  .story-image {
    max-width: 500px;
    margin: 0 auto;
    aspect-ratio: 16/10;
    height: auto;
  }

  .system-exploded {
    aspect-ratio: 16/10;
  }
  
  .knowledge-grid {
    grid-template-columns: 1fr;
  }
  
  .booking-layout {
    grid-template-columns: 1fr;
  }
  
  .booking-info {
    position: static;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .inspiration-section {
    padding: 4rem 0;
  }

  .inspiration-header {
    margin-bottom: 2rem;
    gap: 1.25rem;
  }

  .inspiration-tabs {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
  }

  .ai-inspiration {
    padding: 2rem;
  }

  .masonry-grid {
    grid-template-columns: 1fr;
  }
  
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .cases-filter {
    margin-bottom: 2rem;
  }
  
  .solution-section {
    padding: 3rem 0;
  }

  .solution-features {
    grid-template-columns: 1fr;
  }

  .system-overview,
  .seven-systems {
    padding: 3rem 0;
  }

  .system-exploded {
    aspect-ratio: 4/3;
    margin: 1.5rem auto;
  }

  .systems-grid {
    grid-template-columns: 1fr;
  }
  
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .about-hero,
  .about-story,
  .timeline-section,
  .booking-section,
  .faq-section {
    padding: 3rem 0;
  }
  
  .knowledge-article {
    grid-template-columns: 1fr;
  }

  .knowledge-hub {
    padding: 3rem 0;
  }

  .knowledge-article-image {
    aspect-ratio: 16/10;
  }

  .booking-form-container {
    padding: 1.75rem;
  }
  
  .experts-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .expert-info {
    padding: 1rem 0.75rem 1.25rem;
  }

  .expert-name {
    font-size: 1rem;
  }

  .expert-title {
    font-size: 0.75rem;
  }

  .expert-desc {
    font-size: 0.75rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }

  .stat-item-number {
    font-size: 2rem;
  }

  .timeline-line {
    left: 20px;
  }

  .timeline-item {
    grid-template-columns: 40px 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
  }

  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(odd) .timeline-year {
    order: 2;
    text-align: left;
  }

  .timeline-item:nth-child(odd) .timeline-dot {
    order: 1;
  }

  .timeline-year {
    font-size: 1.5rem;
  }

  .faq-question {
    padding: 1.25rem 0;
  }

  .faq-question h4 {
    font-size: 1rem;
    padding-right: 1rem;
  }

  .faq-answer-inner {
    padding-bottom: 1.25rem;
  }

  .ai-input-group {
    flex-direction: column;
  }

  .form-group {
    margin-bottom: 1.25rem;
  }
}

/* ===== 明亮版内页特有覆盖 ===== */

/* 灵感页瀑布流卡片遮罩 */
.masonry-item-overlay {
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.65) 100%);
}

.masonry-item:hover .masonry-item-overlay {
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.8) 100%);
}

/* 案例卡片 */
.case-item {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.case-item:hover {
  border-color: rgba(238, 17, 17, 0.3);
}

/* 解决方案 */
.solution-feature {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.solution-image {
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* 系统卡片 */
.system-card {
  background: #ffffff;
}

.system-card-icon {
  background: rgba(238, 17, 17, 0.06);
  border-color: rgba(238, 17, 17, 0.2);
}

/* 建房指南卡片 */
.guide-card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.guide-card:hover {
  border-color: rgba(238, 17, 17, 0.3);
}

/* ===== 品牌实力区域 ===== */
.brand-strength-section {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.brand-strength-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.brand-strength-item {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.brand-strength-item:hover {
  border-color: var(--gold-500);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(238, 17, 17, 0.08);
}

.brand-strength-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.brand-strength-unit {
  font-size: 1.125rem;
  font-weight: 500;
  margin-left: 0.25rem;
}

.brand-strength-label {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.brand-business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.brand-business-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.brand-business-card-highlight {
  border: 2px solid var(--gold-500);
  position: relative;
}

.brand-business-card-highlight::before {
  content: '核心业务';
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold-500);
  color: #fff;
  font-size: 0.6875rem;
  padding: 2px 12px;
  border-radius: 10px;
  font-weight: 500;
}

.brand-business-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.brand-business-desc {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* ===== 五大体系区域 ===== */
.five-systems-section {
  padding: 5rem 0;
}

.five-systems-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.five-system-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 2rem 1.25rem;
  text-align: center;
  transition: all 0.3s ease;
}

.five-system-card:hover {
  border-color: var(--gold-500);
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(238, 17, 17, 0.1);
}

.five-system-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(238, 17, 17, 0.06);
  border-radius: 50%;
  color: var(--gold-500);
}

.five-system-icon svg {
  width: 32px;
  height: 32px;
}

.five-system-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.five-system-desc {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  line-height: 1.7;
  text-align: left;
}

/* ===== 专属定制产品区域 ===== */
.exclusive-products-section {
  padding: 5rem 0;
  background: var(--bg-secondary);
}

.exclusive-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.exclusive-product-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.exclusive-product-card:hover {
  border-color: var(--gold-500);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(238, 17, 17, 0.08);
}

.exclusive-product-image {
  aspect-ratio: 750 / 1015;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.exclusive-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.exclusive-product-card:hover .exclusive-product-image img {
  transform: scale(1.05);
}

.exclusive-product-info {
  padding: 1.5rem;
}

.exclusive-product-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--border-medium);
}

.exclusive-product-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.exclusive-product-features li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  padding-left: 1.25rem;
  position: relative;
}

.exclusive-product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.625rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-500);
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .brand-strength-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .five-systems-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .exclusive-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .brand-strength-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .brand-strength-number {
    font-size: 2.25rem;
  }
  .brand-business-grid {
    grid-template-columns: 1fr;
  }
  .five-systems-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .five-system-card {
    padding: 1.5rem 1rem;
  }
  .exclusive-products-grid {
    grid-template-columns: 1fr;
  }
}

/* 专家团队卡片 */
.expert-card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.expert-avatar {
  border-color: rgba(238, 17, 17, 0.3);
}

/* 预约页 */
.booking-form {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.booking-info {
  background: #f8f8f8;
}

/* AI 灵感区 */
.ai-inspiration {
  background: linear-gradient(135deg, #f8f8f8, #ffffff);
  border-color: rgba(238, 17, 17, 0.15);
}

.ai-badge {
  background: rgba(238, 17, 17, 0.06);
  border-color: rgba(238, 17, 17, 0.15);
}

/* 色彩卡片 */
.color-palette-card {
  background: #ffffff;
}

/* Tab 按钮 */
.inspiration-tab:hover,
.inspiration-tab.active,
.filter-btn:hover,
.filter-btn.active {
  background: var(--gold-500);
  color: #ffffff;
  border-color: var(--gold-500);
}

/* 表单 */
.ai-input {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.12);
}

.ai-input:focus {
  border-color: var(--gold-500);
}

/* ===== 图片大图查看 Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-smooth), visibility 0.3s var(--ease-smooth);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox-image-wrap {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.96);
  transition: transform 0.35s var(--ease-bounce);
}

.lightbox.open .lightbox-image-wrap {
  transform: scale(1);
}

.lightbox-image {
  max-width: 90vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}

.lightbox-caption {
  margin-top: 1.25rem;
  text-align: center;
  color: #ffffff;
  font-family: var(--font-display);
}

.lightbox-caption-title {
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 0.375rem;
}

.lightbox-caption-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.03em;
}

.lightbox-close {
  position: absolute;
  top: 1.75rem;
  right: 1.75rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #ffffff;
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
  z-index: 2;
}

.lightbox-close:hover {
  background: var(--gold-500);
  border-color: var(--gold-500);
  transform: rotate(90deg);
}

.lightbox-close svg {
  width: 22px;
  height: 22px;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #ffffff;
  cursor: pointer;
  transition: all 0.3s var(--ease-smooth);
  z-index: 2;
}

.lightbox-nav:hover {
  background: var(--gold-500);
  border-color: var(--gold-500);
}

.lightbox-nav svg {
  width: 26px;
  height: 26px;
}

.lightbox-nav.prev { left: 2rem; }
.lightbox-nav.next { right: 2rem; }

.lightbox-nav.disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.lightbox-counter {
  position: absolute;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
}

@media (max-width: 768px) {
  .lightbox-close {
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
  }
  .lightbox-nav {
    width: 44px;
    height: 44px;
  }
  .lightbox-nav.prev { left: 0.75rem; }
  .lightbox-nav.next { right: 0.75rem; }
  .lightbox-nav svg { width: 20px; height: 20px; }
  .lightbox-image { max-height: 70vh; }
}

/* 触发大图的图片项：指针提示 */
.masonry-item,
.case-item-image {
  cursor: zoom-in;
}