:root {
  --bg:              #ffffff;
  --text:            #17191b;
  --text-secondary:  #4a5568;
  --text-tertiary:   #6b7280;
  --border:          #d1d5db;
  --border-light:    #e2e8f0;
  --border-strong:   #9ca3af;
  --surface:         #f8fafc;
  --surface-hover:   #f1f5f9;
  --accent:          #1d4ed8;
  --accent-light:    #eff6ff;
  --accent-dark:     #1e40af;
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:       0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-hover:    0 10px 25px rgba(0,0,0,0.10), 0 4px 10px rgba(0,0,0,0.06);
  --radius-sm:       6px;
  --radius-md:       10px;
  --radius-lg:       12px;
  --transition:      0.18s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  line-height: 1.58;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.evidence-header {
  padding: 3.5rem 1.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(to bottom, #ffffff, #fafafa);
}

.case-title {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
}

.case-subtitle {
  margin-top: 0.75rem;
  font-size: 1.18rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.evidence-container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}

.logo-line {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0 0 3.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px dashed var(--border-light);
}

.exhibit-logo {
  display: block;
  max-width: 100%;
}

.exhibit-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.98rem;
  color: var(--text-tertiary);
  background: var(--surface);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  white-space: nowrap;
}

.mirrors-block {
  margin: 0 0 4.5rem;
  padding: 1.75rem 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.mirrors-title {
  font-size: 1.42rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.mirrors-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.mirror-item {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.06rem;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.95rem 1.3rem;
  border-radius: var(--radius-md);
  word-break: break-all;
  line-height: 1.48;
  border: 1px solid #bfdbfe;
  transition: all var(--transition);
}

.mirror-item:hover {
  background: #dbeafe;
  border-color: #93c5fd;
  color: var(--accent-dark);
  box-shadow: 0 2px 8px rgba(29,78,216,0.12);
}

.mirrors-note {
  margin-top: 1.3rem;
  font-size: 0.94rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.intro-text {
  margin-bottom: 4.5rem;
}

.intro-text h1 {
  font-size: clamp(2rem, 5.5vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.intro-text p {
  font-size: 1.08rem;
  margin-bottom: 1.1rem;
  color: var(--text-secondary);
}

.exhibit {
  margin-bottom: 6.5rem;
}

.exhibit-header {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.exhibit-header h2 {
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.2;
}

.exhibit-image {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  background: white;
  transition: all var(--transition);
}

.exhibit-image:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.exhibit-caption {
  margin-top: 0.9rem;
  font-size: 0.98rem;
  color: var(--text-tertiary);
  font-style: italic;
  line-height: 1.55;
}

.features-section,
.howto-section,
.rules-section,
.stats-section {
  margin: 5.5rem 0;
}

h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.6rem;
  line-height: 1.2;
}

ul, ol {
  padding-left: 1.6rem;
  margin-bottom: 1.6rem;
}

li {
  margin-bottom: 0.75rem;
  font-size: 1.06rem;
}

ol li {
  padding-left: 0.4rem;
}

.warning {
  color: #991b1b;
  background: #fef2f2;
  border-left: 4px solid #ef4444;
  padding: 1.1rem 1.4rem;
  border-radius: var(--radius-sm);
  margin: 1.8rem 0;
  font-weight: 500;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 1.8rem;
}

.stats-grid > div {
  padding: 1.4rem 1.6rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.stats-grid > div span {
  display: block;
  margin-top: 0.6rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.evidence-footer {
  text-align: center;
  padding: 4.5rem 1.5rem 6rem;
  color: var(--text-tertiary);
  font-size: 0.96rem;
  border-top: 1px solid var(--border-light);
  line-height: 1.6;
}

@media (max-width: 680px) {
  .evidence-container {
    padding: 2rem 1rem;
  }

  .case-title {
    font-size: 2.1rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .exhibit-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .logo-line {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .mirrors-block {
    padding: 1.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    transform: none !important;
  }
}

:root {
  --bg:              #ffffff;
  --text:            #17191b;
  --text-secondary:  #4a5568;
  --text-tertiary:   #6b7280;
  --border:          #d1d5db;
  --border-light:    #e2e8f0;
  --border-strong:   #9ca3af;
  --surface:         #f8fafc;
  --surface-hover:   #f1f5f9;
  --accent:          #1d4ed8;
  --accent-light:    #eff6ff;
  --accent-dark:     #1e40af;
  --warning:         #991b1b;
  --warning-bg:      #fef2f2;
  --warning-border:  #ef4444;
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:       0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-hover:    0 10px 25px rgba(0,0,0,0.10), 0 4px 10px rgba(0,0,0,0.06);
  --radius-sm:       6px;
  --radius-md:       10px;
  --radius-lg:       12px;
  --transition:      0.16s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  line-height: 1.58;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.evidence-header {
  padding: 3.5rem 1.5rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
  background: linear-gradient(to bottom, #ffffff, #fcfcfc);
}

.case-title {
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

.case-subtitle {
  margin-top: 0.8rem;
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.evidence-container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem;
}

.logo-line {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0 0 3.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px dashed var(--border-light);
}

.exhibit-logo {
  max-width: 100%;
  height: auto;
  display: block;
}

.exhibit-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.98rem;
  color: var(--text-tertiary);
  background: var(--surface);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  white-space: nowrap;
}

.mirrors-block {
  margin: 0 0 4.5rem;
  padding: 1.8rem 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.mirrors-block h1 {
  font-size: 1.55rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
}

.mirrors-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.mirror-item {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.06rem;
  color: var(--accent);
  background: var(--accent-light);
  padding: 1rem 1.35rem;
  border-radius: var(--radius-md);
  word-break: break-all;
  line-height: 1.48;
  border: 1px solid #bfdbfe;
  transition: all var(--transition);
}

.mirror-item:hover {
  background: #dbeafe;
  border-color: #93c5fd;
  color: var(--accent-dark);
  box-shadow: 0 2px 8px rgba(29,78,216,0.1);
}

.mirrors-note {
  margin-top: 1.4rem;
  font-size: 0.95rem;
  color: var(--text-tertiary);
  line-height: 1.55;
}

.intro-section, .core-info, .advantages, .access-guide, .categories-detail, .platform-rules, .privacy-advice, .faq-block {
  margin: 5rem 0;
}

h1, h2 {
  font-weight: 800;
  line-height: 1.18;
}

h1 {
  font-size: clamp(2.1rem, 5.8vw, 2.5rem);
  margin-bottom: 1.3rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.info-grid, .facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.3rem;
  margin-top: 1.5rem;
}

.info-grid > div, .facts-grid > div {
  padding: 1.4rem 1.6rem;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.info-grid > div span, .facts-grid > div span {
  display: block;
  margin-top: 0.65rem;
  font-weight: 600;
  color: var(--text);
}

.exhibit {
  margin-bottom: 6.5rem;
}

.exhibit-header {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  margin-bottom: 1.3rem;
  flex-wrap: wrap;
}

.exhibit-header h2 {
  font-size: 1.7rem;
  font-weight: 700;
}

.exhibit-image {
  width: 100%;
  height: auto;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  background: white;
  transition: all var(--transition);
}

.exhibit-image:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.exhibit-caption {
  margin-top: 1rem;
  font-size: 0.98rem;
  color: var(--text-tertiary);
  font-style: italic;
  line-height: 1.55;
}

.feature-list, .numbered-guide, .category-columns ul, .rules-list, .advice-list {
  padding-left: 1.6rem;
  margin-bottom: 1.6rem;
}

.feature-list li, .rules-list li, .advice-list li {
  margin-bottom: 0.8rem;
  font-size: 1.06rem;
}

.numbered-guide li {
  margin-bottom: 1rem;
  font-size: 1.06rem;
  padding-left: 0.4rem;
}

.category-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.2rem;
}

.warning-box {
  color: var(--warning);
  background: var(--warning-bg);
  border-left: 4px solid var(--warning-border);
  padding: 1.2rem 1.5rem;
  border-radius: var(--radius-sm);
  margin: 2rem 0;
  font-weight: 500;
}

.faq-list dt {
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
  font-size: 1.12rem;
}

.faq-list dd {
  margin-bottom: 1.2rem;
  color: var(--text-secondary);
}

.evidence-footer {
  text-align: center;
  padding: 5rem 1.5rem 6.5rem;
  color: var(--text-tertiary);
  font-size: 0.96rem;
  border-top: 1px solid var(--border-light);
  line-height: 1.6;
}

@media (max-width: 680px) {
  .evidence-container {
    padding: 2rem 1rem;
  }

  .case-title {
    font-size: 2.2rem;
  }

  h1 {
    font-size: 2.1rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .exhibit-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .logo-line {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .mirrors-block {
    padding: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    transform: none !important;
  }
}