/* roulang page: index */
:root {
      --bg-main: #0B0F17;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --color-primary: #7C3AED;
      --color-secondary: #EC4899;
      --color-accent: #10B981;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      overflow-x: hidden;
    }
    .gradient-text {
      background: linear-gradient(135deg, #A78BFA 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
      box-shadow: 0 4px 20px -2px rgba(236, 72, 153, 0.4);
      transition: all 0.3s ease;
    }
    .gradient-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px -1px rgba(236, 72, 153, 0.6);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid #1E293B;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(236, 72, 153, 0.4);
      box-shadow: 0 12px 30px -10px rgba(124, 58, 237, 0.15);
      transform: translateY(-2px);
    }
    .data-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #34D399;
    }
    /* 手风琴状态 */
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }

/* roulang page: category2 */
:root {
      --bg-main: #0B0F17;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --color-primary: #7C3AED;
      --color-secondary: #EC4899;
      --color-accent: #10B981;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      overflow-x: hidden;
    }
    .gradient-text {
      background: linear-gradient(135deg, #A78BFA 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-text-gradient {
      background: linear-gradient(135deg, #C084FC 0%, #EC4899 50%, #F43F5E 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
      box-shadow: 0 4px 20px -2px rgba(236, 72, 153, 0.4);
      transition: all 0.3s ease;
    }
    .gradient-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px -1px rgba(236, 72, 153, 0.6);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid #1E293B;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(236, 72, 153, 0.4);
      box-shadow: 0 12px 30px -10px rgba(124, 58, 237, 0.15);
      transform: translateY(-2px);
    }
    .data-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #34D399;
    }
    .data-pill-purple {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(124, 58, 237, 0.15);
      border: 1px solid rgba(167, 139, 250, 0.3);
      color: #C084FC;
    }
    .data-pill-pink {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(236, 72, 153, 0.15);
      border: 1px solid rgba(244, 114, 182, 0.3);
      color: #F472B6;
    }
    details > summary {
      list-style: none;
    }
    details > summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary .faq-icon {
      transform: rotate(180deg);
      color: #EC4899;
    }

/* roulang page: category1 */
:root {
      --bg-main: #0B0F17;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --color-primary: #7C3AED;
      --color-secondary: #EC4899;
      --color-accent: #10B981;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      overflow-x: hidden;
    }
    .gradient-text {
      background: linear-gradient(135deg, #A78BFA 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-text-gradient {
      background: linear-gradient(135deg, #C084FC 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
      box-shadow: 0 4px 20px -2px rgba(236, 72, 153, 0.4);
      transition: all 0.3s ease;
    }
    .gradient-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px -1px rgba(236, 72, 153, 0.6);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid #1E293B;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(236, 72, 153, 0.4);
      box-shadow: 0 12px 30px -10px rgba(124, 58, 237, 0.15);
      transform: translateY(-2px);
    }
    .data-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.75rem;
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #34D399;
    }
    .data-badge-purple {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.75rem;
      background: rgba(124, 58, 237, 0.15);
      border: 1px solid rgba(124, 58, 237, 0.3);
      color: #C084FC;
    }
    .data-badge-pink {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 0.75rem;
      background: rgba(236, 72, 153, 0.15);
      border: 1px solid rgba(236, 72, 153, 0.3);
      color: #F472B6;
    }

/* roulang page: category3 */
:root {
      --bg-main: #0B0F17;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --color-primary: #7C3AED;
      --color-secondary: #EC4899;
      --color-accent: #10B981;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      overflow-x: hidden;
      background-color: #0B0F17;
    }
    .gradient-text {
      background: linear-gradient(135deg, #A855F7 0%, #EC4899 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-text-gradient {
      background: linear-gradient(135deg, #C084FC 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
      box-shadow: 0 4px 20px -2px rgba(236, 72, 153, 0.4);
      transition: all 0.3s ease;
    }
    .gradient-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px -1px rgba(236, 72, 153, 0.6);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid #1E293B;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(236, 72, 153, 0.4);
      box-shadow: 0 12px 30px -10px rgba(124, 58, 237, 0.15);
      transform: translateY(-2px);
    }
    .data-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #34D399;
    }
    .data-pill-purple {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(124, 58, 237, 0.12);
      border: 1px solid rgba(124, 58, 237, 0.3);
      color: #C084FC;
    }
    .data-pill-pink {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(236, 72, 153, 0.12);
      border: 1px solid rgba(236, 72, 153, 0.3);
      color: #F472B6;
    }
    details summary::-webkit-details-marker {
      display: none;
    }
    details[open] summary svg {
      transform: rotate(180deg);
    }

/* roulang page: category4 */
:root {
      --bg-main: #0B0F17;
      --text-main: #F1F5F9;
      --text-muted: #94A3B8;
      --color-primary: #7C3AED;
      --color-secondary: #EC4899;
      --color-accent: #10B981;
    }
    html {
      scroll-behavior: smooth;
      background-color: var(--bg-main);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }
    body {
      overflow-x: hidden;
    }
    .gradient-text {
      background: linear-gradient(135deg, #A78BFA 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .brand-text-gradient {
      background: linear-gradient(135deg, #C084FC 0%, #F472B6 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .gradient-btn {
      background: linear-gradient(135deg, #7C3AED 0%, #EC4899 100%);
      box-shadow: 0 4px 20px -2px rgba(236, 72, 153, 0.4);
      transition: all 0.3s ease;
    }
    .gradient-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 25px -1px rgba(236, 72, 153, 0.6);
    }
    .glass-card {
      background: rgba(15, 23, 42, 0.85);
      backdrop-filter: blur(12px);
      border: 1px solid #1E293B;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .glass-card:hover {
      border-color: rgba(236, 72, 153, 0.4);
      box-shadow: 0 12px 30px -10px rgba(124, 58, 237, 0.15);
      transform: translateY(-2px);
    }
    .data-pill {
      display: inline-flex;
      align-items: center;
      padding: 0.25rem 0.75rem;
      border-radius: 9999px;
      font-family: monospace;
      font-size: 0.75rem;
      background: rgba(16, 185, 129, 0.1);
      border: 1px solid rgba(16, 185, 129, 0.25);
      color: #34D399;
    }
    .faq-collapse summary::-webkit-details-marker {
      display: none;
    }
    .faq-collapse[open] summary svg {
      transform: rotate(180deg);
    }