/* roulang page: index */
:root {
      --bg-base: #0A0B0E;
      --bg-surface: #12151C;
      --bg-card: #181C26;
      --bg-card-hover: #222736;
      --accent-neon: #FF2E63;
      --accent-cyan: #00F5D4;
      --text-main: #F5F6FA;
      --text-body: #D1D5DB;
      --text-muted: #8A94A6;
      --border-hud: rgba(0, 245, 212, 0.18);
      --border-neon: rgba(255, 46, 99, 0.28);
      --border-subtle: rgba(255, 255, 255, 0.08);
      --glow-cyan: 0 0 16px rgba(0, 245, 212, 0.35);
      --glow-neon: 0 0 16px rgba(255, 46, 99, 0.45);
      --radius-sm: 4px;
      --radius-md: 8px;
      --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    body {
      background-color: var(--bg-base);
      background-image: 
        radial-gradient(circle at 15% 20%, rgba(255, 46, 99, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 85% 65%, rgba(0, 245, 212, 0.05) 0%, transparent 40%),
        linear-gradient(180deg, #0A0B0E 0%, #10131A 100%);
      color: var(--text-body);
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
      font-size: 15px;
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--accent-cyan);
      text-decoration: none;
      transition: var(--transition);
    }
    a:hover, a:focus {
      color: #70fff0;
      text-decoration: none;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    /* Foundation Override Containers */
    .grid-container {
      max-width: 1240px;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* HUD Utilities & Headers */
    .hud-title-wrap {
      margin-bottom: 36px;
      position: relative;
    }
    .hud-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--accent-cyan);
      background: rgba(0, 245, 212, 0.08);
      border: 1px solid var(--border-hud);
      padding: 4px 12px;
      border-radius: var(--radius-sm);
      margin-bottom: 12px;
      font-weight: 600;
    }
    .hud-tagline::before {
      content: '';
      width: 6px;
      height: 6px;
      background: var(--accent-cyan);
      box-shadow: var(--glow-cyan);
      border-radius: 50%;
      display: inline-block;
    }
    .hud-h2 {
      color: var(--text-main);
      font-size: clamp(24px, 3.2vw, 36px);
      font-weight: 800;
      line-height: 1.35;
      position: relative;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }
    .hud-h2 span {
      background: linear-gradient(135deg, #FFF 0%, var(--accent-cyan) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hud-desc {
      color: var(--text-muted);
      font-size: 15px;
      max-width: 760px;
      line-height: 1.7;
    }

    /* Top Bar Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 999;
      background: rgba(10, 11, 14, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      padding: 14px 0;
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-main);
      font-size: 20px;
      font-weight: 800;
      letter-spacing: 0.5px;
    }
    .brand-logo i {
      color: var(--accent-neon);
      font-size: 22px;
      filter: drop-shadow(0 0 8px rgba(255, 46, 99, 0.6));
    }
    .brand-indicator {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent-cyan);
      box-shadow: 0 0 8px var(--accent-cyan);
      margin-left: 4px;
    }
    .nav-menu {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
      margin: 0;
    }
    .nav-menu a {
      color: var(--text-body);
      font-size: 14px;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 4px;
      position: relative;
    }
    .nav-menu a.active,
    .nav-menu a:hover {
      color: var(--accent-cyan);
    }
    .nav-menu a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent-cyan);
      box-shadow: var(--glow-cyan);
    }
    .nav-cta-btn {
      background: linear-gradient(135deg, var(--accent-neon) 0%, #d81b4d 100%);
      color: #FFF !important;
      font-size: 13px;
      font-weight: 700;
      padding: 8px 18px !important;
      border-radius: var(--radius-sm);
      clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
      box-shadow: var(--glow-neon);
      transition: var(--transition);
    }
    .nav-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 22px rgba(255, 46, 99, 0.7);
    }

    /* Hero Component */
    .hero-section {
      position: relative;
      padding: 64px 0 54px;
      background: url('/assets/images/79e9b02eb7cdaf63.webp') center/cover no-repeat;
      border-bottom: 1px solid var(--border-subtle);
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(10, 11, 14, 0.96) 0%, rgba(18, 21, 28, 0.88) 50%, rgba(10, 11, 14, 0.94) 100%);
      z-index: 1;
    }
    .hero-container {
      position: relative;
      z-index: 2;
    }
    .hero-hud-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 6px 14px;
      background: rgba(24, 28, 38, 0.9);
      border: 1px solid var(--border-hud);
      border-left: 4px solid var(--accent-cyan);
      border-radius: var(--radius-sm);
      font-size: 12px;
      color: var(--accent-cyan);
      margin-bottom: 20px;
    }
    .hero-title {
      color: var(--text-main);
      font-size: clamp(26px, 3.8vw, 42px);
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: -0.8px;
    }
    .hero-title strong {
      color: var(--accent-neon);
      text-shadow: 0 0 20px rgba(255, 46, 99, 0.5);
    }
    .hero-lead {
      color: var(--text-body);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 28px;
      max-width: 640px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }
    .btn-cyber-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      font-size: 14px;
      font-weight: 700;
      color: #FFF;
      background: linear-gradient(135deg, var(--accent-neon) 0%, #b81440 100%);
      border: none;
      border-radius: var(--radius-sm);
      clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
      box-shadow: var(--glow-neon);
      cursor: pointer;
      transition: var(--transition);
    }
    .btn-cyber-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 25px rgba(255, 46, 99, 0.8);
      color: #FFF;
    }
    .btn-cyber-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      font-size: 14px;
      font-weight: 600;
      color: var(--accent-cyan);
      background: rgba(0, 245, 212, 0.04);
      border: 1px solid var(--border-hud);
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }
    .btn-cyber-outline:hover {
      background: rgba(0, 245, 212, 0.12);
      border-color: var(--accent-cyan);
      color: #FFF;
    }
    .hero-spec-strip {
      display: flex;
      gap: 24px;
      border-top: 1px solid var(--border-subtle);
      padding-top: 20px;
    }
    .spec-item {
      display: flex;
      flex-direction: column;
    }
    .spec-val {
      font-size: 18px;
      font-weight: 800;
      color: var(--accent-cyan);
    }
    .spec-label {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* Hero Code / Console Window */
    .hero-console-box {
      background: #0E1118;
      border: 1px solid var(--border-hud);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 16px 36px rgba(0,0,0,0.6);
      position: relative;
    }
    .console-header {
      background: #181D28;
      padding: 10px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .console-dots {
      display: flex;
      gap: 6px;
    }
    .console-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }
    .dot-red { background: #FF5F56; }
    .dot-yellow { background: #FFBD2E; }
    .dot-green { background: #27C93F; }
    .console-title {
      font-size: 12px;
      color: var(--text-muted);
      font-family: monospace;
    }
    .console-status {
      font-size: 11px;
      color: var(--accent-cyan);
      background: rgba(0, 245, 212, 0.1);
      padding: 2px 8px;
      border-radius: 2px;
    }
    .console-body {
      padding: 18px;
      font-family: "Fira Code", Monaco, Consolas, monospace;
      font-size: 13px;
      line-height: 1.6;
      color: #A5B4FC;
    }
    .console-line {
      display: flex;
      margin-bottom: 6px;
    }
    .code-ln {
      color: #4B5563;
      user-select: none;
      width: 28px;
    }
    .code-fn { color: #F472B6; }
    .code-str { color: #34D399; }
    .code-kwd { color: #60A5FA; }
    .code-comment { color: #6B7280; font-style: italic; }
    .console-foot-metrics {
      background: rgba(0, 245, 212, 0.04);
      border-top: 1px dashed var(--border-hud);
      padding: 12px 16px;
      display: flex;
      justify-content: space-between;
      font-size: 12px;
      color: var(--text-body);
    }

    /* Pill Navigation Section (Below Hero) */
    .pill-nav-bar {
      background: #11141C;
      border-bottom: 1px solid var(--border-subtle);
      padding: 14px 0;
      position: relative;
      z-index: 10;
    }
    .pill-scroll-wrapper {
      display: flex;
      gap: 12px;
      overflow-x: auto;
      padding-bottom: 2px;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .pill-scroll-wrapper::-webkit-scrollbar {
      display: none;
    }
    .pill-chip {
      white-space: nowrap;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 18px;
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 30px;
      font-size: 13px;
      color: var(--text-muted);
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
    }
    .pill-chip:hover {
      color: var(--text-main);
      border-color: var(--accent-cyan);
      background: var(--bg-card-hover);
    }
    .pill-chip.active {
      color: var(--bg-base);
      background: var(--accent-cyan);
      border-color: var(--accent-cyan);
      font-weight: 700;
      box-shadow: var(--glow-cyan);
    }
    .pill-chip i {
      font-size: 11px;
    }

    /* General Section Padding & Utilities */
    .section-spacing {
      padding: 72px 0;
      position: relative;
    }
    .section-dark {
      background: #0D0F15;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-card-bg {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
      height: 100%;
    }
    .section-card-bg:hover {
      border-color: var(--border-hud);
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
    }

    /* Pain Points Cards */
    .pain-card {
      background: #141720;
      border: 1px solid rgba(255, 46, 99, 0.16);
      border-top: 3px solid var(--accent-neon);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      position: relative;
    }
    .pain-index {
      font-size: 12px;
      font-family: monospace;
      color: var(--accent-neon);
      margin-bottom: 10px;
      font-weight: 700;
    }
    .pain-card h3 {
      font-size: 18px;
      color: var(--text-main);
      font-weight: 700;
      margin-bottom: 10px;
    }
    .pain-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin: 0;
    }

    /* Matrix Solution Cards */
    .solution-tree-box {
      background: #121622;
      border: 1px solid var(--border-hud);
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .tree-node {
      border-left: 2px solid var(--accent-cyan);
      padding-left: 18px;
      margin-bottom: 24px;
      position: relative;
    }
    .tree-node::before {
      content: '';
      position: absolute;
      left: -6px;
      top: 6px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent-cyan);
      box-shadow: var(--glow-cyan);
    }
    .tree-node:last-child {
      margin-bottom: 0;
    }

    /* Method Timeline Steps */
    .timeline-step-card {
      background: #161A24;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      height: 100%;
    }
    .timeline-step-badge {
      font-size: 11px;
      font-weight: 800;
      color: var(--accent-cyan);
      background: rgba(0, 245, 212, 0.1);
      display: inline-block;
      padding: 2px 8px;
      border-radius: 2px;
      margin-bottom: 12px;
    }
    .timeline-step-card h4 {
      color: var(--text-main);
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .timeline-step-card p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin: 0;
    }

    /* Metrics Dashboard */
    .metrics-hud-strip {
      background: radial-gradient(circle at 50% 50%, #161C28 0%, #0E121A 100%);
      border: 1px solid var(--border-hud);
      border-radius: var(--radius-md);
      padding: 36px 20px;
      box-shadow: inset 0 0 40px rgba(0, 245, 212, 0.05);
    }
    .metric-data-val {
      font-size: clamp(28px, 4vw, 46px);
      font-weight: 900;
      color: var(--accent-cyan);
      line-height: 1;
      text-shadow: var(--glow-cyan);
      margin-bottom: 6px;
      font-family: system-ui, sans-serif;
    }
    .metric-data-label {
      color: var(--text-main);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 4px;
    }
    .metric-data-sub {
      color: var(--text-muted);
      font-size: 12px;
    }

    /* Testimonial Cards */
    .testi-card {
      background: #151822;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-header {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
    }
    .testi-avatar {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      border: 2px solid var(--accent-cyan);
      object-fit: cover;
    }
    .testi-meta h4 {
      font-size: 15px;
      color: var(--text-main);
      font-weight: 700;
      margin: 0;
    }
    .testi-meta span {
      font-size: 12px;
      color: var(--text-muted);
    }
    .testi-quote {
      font-size: 13.5px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* Comparison Table */
    .hud-table-wrap {
      overflow-x: auto;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
    }
    .hud-table {
      width: 100%;
      border-collapse: collapse;
      margin: 0;
      background: #11141C;
      font-size: 14px;
    }
    .hud-table th, .hud-table td {
      padding: 16px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .hud-table th {
      background: #171B26;
      color: var(--text-main);
      font-weight: 700;
      font-size: 13px;
      letter-spacing: 0.5px;
    }
    .hud-table td {
      color: var(--text-body);
    }
    .hud-table tr:hover td {
      background: rgba(255, 255, 255, 0.02);
    }
    .highlight-col {
      color: var(--accent-cyan) !important;
      font-weight: 600;
      background: rgba(0, 245, 212, 0.02);
    }

    /* Insights / News Card */
    .insight-card {
      background: #141722;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .insight-card:hover {
      border-color: var(--border-hud);
    }
    .insight-img-wrap {
      height: 170px;
      overflow: hidden;
      position: relative;
    }
    .insight-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: var(--transition);
    }
    .insight-card:hover .insight-img-wrap img {
      transform: scale(1.04);
    }
    .insight-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(10, 11, 14, 0.85);
      border: 1px solid var(--border-hud);
      padding: 3px 8px;
      font-size: 11px;
      color: var(--accent-cyan);
      border-radius: 2px;
    }
    .insight-body {
      padding: 20px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .insight-body h4 {
      color: var(--text-main);
      font-size: 16px;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 8px;
    }
    .insight-body p {
      color: var(--text-muted);
      font-size: 13px;
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .insight-meta {
      font-size: 12px;
      color: #6B7280;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    /* Sandbox Interactive Console */
    .sandbox-container {
      background: #10131B;
      border: 1px solid var(--border-hud);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .sandbox-tabs {
      display: flex;
      background: #171B26;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      overflow-x: auto;
    }
    .sandbox-tab {
      padding: 12px 20px;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-muted);
      cursor: pointer;
      border-right: 1px solid rgba(255, 255, 255, 0.05);
      white-space: nowrap;
      transition: var(--transition);
    }
    .sandbox-tab.active, .sandbox-tab:hover {
      color: var(--accent-cyan);
      background: rgba(0, 245, 212, 0.04);
    }
    .sandbox-content {
      padding: 24px;
    }

    /* FAQ Collapsible */
    .faq-item {
      background: #141822;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
    }
    .faq-header {
      padding: 18px 20px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-main);
      font-weight: 700;
      font-size: 15px;
      background: #161A26;
      transition: var(--transition);
    }
    .faq-header:hover {
      background: #1C2130;
      color: var(--accent-cyan);
    }
    .faq-answer {
      padding: 18px 20px;
      color: var(--text-body);
      font-size: 14px;
      line-height: 1.7;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
    }

    /* Final CTA Screen */
    .final-cta-box {
      background: linear-gradient(135deg, rgba(255, 46, 99, 0.12) 0%, rgba(0, 245, 212, 0.08) 100%), #121520;
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-md);
      padding: 50px 32px;
      text-align: center;
      box-shadow: 0 0 35px rgba(255, 46, 99, 0.15);
      position: relative;
    }

    /* Footer Component */
    .site-footer {
      background: #08090C;
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 28px;
      font-size: 13.5px;
      color: var(--text-muted);
    }
    .footer-brand {
      color: var(--text-main);
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .footer-col h5 {
      color: var(--text-main);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 8px;
    }
    .footer-col h5::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--accent-cyan);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
    }
    .footer-links a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      padding-top: 24px;
      margin-top: 40px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      font-size: 12px;
      color: #6B7280;
    }

    /* Responsive Queries */
    @media (max-width: 1024px) {
      .hero-spec-strip { gap: 14px; }
      .metrics-hud-strip .cell { margin-bottom: 18px; }
    }
    @media (max-width: 768px) {
      .site-header { padding: 12px 0; }
      .nav-menu { display: none; }
      .mobile-menu-btn { display: inline-flex; color: var(--text-main); font-size: 20px; }
      .hero-section { padding: 40px 0; }
      .hero-title { font-size: 26px; }
      .hero-console-box { margin-top: 24px; }
      .final-cta-box { padding: 32px 18px; }
      .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    }
    @media (min-width: 769px) {
      .mobile-menu-btn { display: none; }
    }

/* roulang page: category1 */
:root {
        --bg-base: #0A0B0E;
        --bg-surface: #12151C;
        --bg-card: #181C26;
        --bg-card-hover: #222736;
        --accent-neon: #FF2E63;
        --accent-cyan: #00F5D4;
        --text-main: #F5F6FA;
        --text-body: #D1D5DB;
        --text-muted: #8A94A6;
        --border-hud: rgba(0, 245, 212, 0.18);
        --border-neon: rgba(255, 46, 99, 0.28);
        --border-subtle: rgba(255, 255, 255, 0.08);
        --glow-cyan: 0 0 16px rgba(0, 245, 212, 0.35);
        --glow-neon: 0 0 16px rgba(255, 46, 99, 0.45);
        --radius-sm: 4px;
        --radius-md: 8px;
        --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
        background-color: var(--bg-base);
        background-image: 
            radial-gradient(circle at 15% 20%, rgba(255, 46, 99, 0.06) 0%, transparent 45%),
            radial-gradient(circle at 85% 65%, rgba(0, 245, 212, 0.05) 0%, transparent 40%),
            linear-gradient(180deg, #0A0B0E 0%, #10131A 100%);
        color: var(--text-body);
        font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
        font-size: 15px;
        line-height: 1.75;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: var(--accent-cyan);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover, a:focus {
        color: #70fff0;
        text-decoration: none;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    .grid-container {
        max-width: 1240px;
        padding-left: 20px;
        padding-right: 20px;
    }

    /* Top Bar Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 999;
        background: rgba(10, 11, 14, 0.88);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border-subtle);
        padding: 14px 0;
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .brand-logo {
        display: flex;
        align-items: center;
        gap: 12px;
        color: var(--text-main);
        font-size: 20px;
        font-weight: 800;
        letter-spacing: 0.5px;
    }
    .brand-logo i {
        color: var(--accent-neon);
        font-size: 22px;
        filter: drop-shadow(0 0 8px rgba(255, 46, 99, 0.6));
    }
    .brand-indicator {
        display: inline-block;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--accent-cyan);
        box-shadow: 0 0 8px var(--accent-cyan);
        margin-left: 4px;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        list-style: none;
        gap: 28px;
        margin: 0;
    }
    .nav-menu a {
        color: var(--text-body);
        font-size: 14px;
        font-weight: 500;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 4px;
        position: relative;
    }
    .nav-menu a.active,
    .nav-menu a:hover {
        color: var(--accent-cyan);
    }
    .nav-menu a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 2px;
        background: var(--accent-cyan);
        box-shadow: var(--glow-cyan);
    }
    .nav-cta-btn {
        background: linear-gradient(135deg, var(--accent-neon) 0%, #d81b4d 100%);
        color: #FFF !important;
        font-size: 13px;
        font-weight: 700;
        padding: 8px 18px !important;
        border-radius: var(--radius-sm);
        clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
        box-shadow: var(--glow-neon);
        transition: var(--transition);
    }
    .nav-cta-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 22px rgba(255, 46, 99, 0.7);
    }

    /* Pill Navigation */
    .pill-nav-bar {
        background: #0E1017;
        border-bottom: 1px solid var(--border-subtle);
        padding: 10px 0;
        position: relative;
        z-index: 90;
    }
    .pill-scroll-wrapper {
        display: flex;
        gap: 12px;
        overflow-x: auto;
        white-space: nowrap;
        padding: 4px 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .pill-scroll-wrapper::-webkit-scrollbar {
        display: none;
    }
    .pill-chip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 7px 16px;
        background: rgba(24, 28, 38, 0.85);
        border: 1px solid var(--border-subtle);
        border-radius: 20px;
        color: var(--text-body);
        font-size: 13px;
        font-weight: 500;
        transition: var(--transition);
        text-decoration: none;
    }
    .pill-chip i {
        font-size: 12px;
        color: var(--text-muted);
    }
    .pill-chip:hover {
        border-color: var(--accent-cyan);
        color: var(--text-main);
        background: rgba(0, 245, 212, 0.08);
    }
    .pill-chip.active {
        background: rgba(0, 245, 212, 0.12);
        border-color: var(--accent-cyan);
        color: var(--accent-cyan);
        box-shadow: 0 0 10px rgba(0, 245, 212, 0.2);
    }
    .pill-chip.active i {
        color: var(--accent-cyan);
    }

    /* HUD Utilities */
    .hud-tagline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 12px;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        color: var(--accent-cyan);
        background: rgba(0, 245, 212, 0.08);
        border: 1px solid var(--border-hud);
        padding: 4px 12px;
        border-radius: var(--radius-sm);
        margin-bottom: 12px;
        font-weight: 600;
    }
    .hud-tagline::before {
        content: '';
        width: 6px;
        height: 6px;
        background: var(--accent-cyan);
        box-shadow: var(--glow-cyan);
        border-radius: 50%;
        display: inline-block;
    }

    /* Category Header Banner */
    .cat-header-banner {
        position: relative;
        padding: 48px 0 40px;
        background: url('/assets/images/7c9c203caca7d7fc.jpg') center/cover no-repeat;
        border-bottom: 1px solid var(--border-subtle);
    }
    .cat-banner-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(10, 11, 14, 0.96) 0%, rgba(18, 21, 28, 0.92) 55%, rgba(10, 11, 14, 0.96) 100%);
        z-index: 1;
    }
    .cat-header-content {
        position: relative;
        z-index: 2;
    }
    .cat-breadcrumbs {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 16px;
    }
    .cat-breadcrumbs a {
        color: var(--text-muted);
    }
    .cat-breadcrumbs a:hover {
        color: var(--accent-cyan);
    }
    .cat-breadcrumbs span.current {
        color: var(--accent-cyan);
    }
    .cat-h1 {
        font-size: clamp(24px, 3.2vw, 36px);
        color: var(--text-main);
        font-weight: 900;
        line-height: 1.3;
        margin-bottom: 16px;
    }
    .cat-h1 span.highlight {
        color: var(--accent-neon);
        text-shadow: 0 0 16px rgba(255, 46, 99, 0.4);
    }
    .cat-desc-lead {
        max-width: 820px;
        font-size: 14.5px;
        color: var(--text-body);
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .cat-quick-badges {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .cat-hud-pill {
        font-size: 12px;
        padding: 4px 12px;
        background: rgba(24, 28, 38, 0.8);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        color: var(--text-body);
    }
    .cat-hud-pill i {
        color: var(--accent-cyan);
        margin-right: 5px;
    }

    /* Section Global */
    .cat-section {
        padding: 56px 0;
        position: relative;
        border-bottom: 1px solid var(--border-subtle);
    }
    .cat-section.alt-bg {
        background: rgba(18, 21, 28, 0.5);
    }
    .sec-header {
        margin-bottom: 36px;
    }
    .sec-title {
        font-size: clamp(20px, 2.4vw, 28px);
        font-weight: 800;
        color: var(--text-main);
        line-height: 1.35;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .sec-title::before {
        content: '';
        display: inline-block;
        width: 4px;
        height: 22px;
        background: var(--accent-neon);
        box-shadow: var(--glow-neon);
        border-radius: 2px;
    }
    .sec-sub {
        font-size: 14px;
        color: var(--text-muted);
        max-width: 680px;
    }

    /* Attributes Filter Bar */
    .filter-ctrl-panel {
        background: var(--bg-card);
        border: 1px solid var(--border-hud);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        margin-bottom: 10px;
    }
    .filter-group-row {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        padding: 8px 0;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    }
    .filter-group-row:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .filter-label {
        font-size: 12.5px;
        font-weight: 700;
        color: var(--accent-cyan);
        width: 88px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .filter-tags-wrap {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .filter-tag-btn {
        font-size: 12.5px;
        padding: 4px 14px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        color: var(--text-muted);
        cursor: pointer;
        transition: var(--transition);
    }
    .filter-tag-btn:hover {
        border-color: var(--accent-cyan);
        color: var(--text-main);
    }
    .filter-tag-btn.active {
        background: rgba(255, 46, 99, 0.15);
        border-color: var(--accent-neon);
        color: #FFF;
        font-weight: 600;
    }

    /* Content Cards Grid */
    .hud-content-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        height: 100%;
        position: relative;
    }
    .hud-content-card:hover {
        transform: translateY(-4px);
        border-color: var(--border-hud);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.6);
    }
    .card-thumb-wrap {
        position: relative;
        aspect-ratio: 16 / 9;
        overflow: hidden;
        background: #11141c;
    }
    .card-thumb-wrap img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .hud-content-card:hover .card-thumb-wrap img {
        transform: scale(1.05);
    }
    .card-hud-badge {
        position: absolute;
        top: 10px;
        right: 10px;
        background: rgba(10, 11, 14, 0.85);
        border: 1px solid var(--border-hud);
        color: var(--accent-cyan);
        font-size: 11px;
        font-weight: 700;
        padding: 3px 8px;
        border-radius: var(--radius-sm);
        backdrop-filter: blur(6px);
    }
    .card-body-block {
        padding: 20px;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
    }
    .card-meta-line {
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: 12px;
        color: var(--text-muted);
        margin-bottom: 10px;
    }
    .card-title-text {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.45;
        margin-bottom: 10px;
    }
    .card-desc-text {
        font-size: 13.5px;
        color: var(--text-body);
        line-height: 1.65;
        margin-bottom: 18px;
        flex-grow: 1;
    }
    .card-data-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 6px;
        margin-bottom: 16px;
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .mini-data-chip {
        font-size: 11.5px;
        padding: 2px 8px;
        background: rgba(0, 245, 212, 0.06);
        color: var(--accent-cyan);
        border-radius: var(--radius-sm);
    }
    .card-action-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .card-read-link {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .card-read-link:hover {
        color: var(--accent-cyan);
    }
    .grid-pagination-area {
        text-align: center;
        margin-top: 40px;
    }
    .btn-cyber-outline {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 36px;
        font-size: 14px;
        font-weight: 700;
        color: var(--accent-cyan);
        background: rgba(0, 245, 212, 0.06);
        border: 1px solid var(--accent-cyan);
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: var(--transition);
    }
    .btn-cyber-outline:hover {
        background: var(--accent-cyan);
        color: #0A0B0E;
        box-shadow: var(--glow-cyan);
    }

    /* Featured Spotlight */
    .spotlight-card {
        background: linear-gradient(135deg, rgba(24, 28, 38, 0.95) 0%, rgba(34, 39, 54, 0.9) 100%);
        border: 1px solid var(--border-neon);
        border-radius: var(--radius-md);
        overflow: hidden;
        position: relative;
        box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
    }
    .spotlight-inner {
        display: flex;
        flex-wrap: wrap;
    }
    .spotlight-image-col {
        flex: 1 1 420px;
        position: relative;
        min-height: 280px;
    }
    .spotlight-image-col img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .spotlight-text-col {
        flex: 1 1 480px;
        padding: 36px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .spotlight-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(255, 46, 99, 0.15);
        color: var(--accent-neon);
        border: 1px solid var(--border-neon);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 12px;
        border-radius: var(--radius-sm);
        margin-bottom: 14px;
        width: fit-content;
    }
    .spotlight-title {
        font-size: clamp(20px, 2vw, 26px);
        font-weight: 800;
        color: var(--text-main);
        line-height: 1.4;
        margin-bottom: 14px;
    }
    .spotlight-desc {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.75;
        margin-bottom: 22px;
    }
    .spotlight-stats-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
        margin-bottom: 24px;
    }
    .spot-stat-item {
        background: rgba(10, 11, 14, 0.6);
        padding: 10px 14px;;
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
    }
    .spot-stat-num {
        font-size: 18px;
        font-weight: 800;
        color: var(--accent-cyan);
        display: block;
        line-height: 1.2;
    }
    .spot-stat-lbl {
        font-size: 11px;
        color: var(--text-muted);
    }

    /* GEO Scenarios */
    .geo-scenario-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 26px 22px;
        height: 100%;
        transition: var(--transition);
        position: relative;
    }
    .geo-scenario-card:hover {
        border-color: var(--accent-cyan);
        transform: translateY(-3px);
    }
    .geo-hud-code {
        font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        font-size: 11px;
        color: var(--accent-cyan);
        margin-bottom: 8px;
        display: block;
    }
    .geo-card-title {
        font-size: 17px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 12px;
    }
    .geo-card-desc {
        font-size: 13.5px;
        color: var(--text-body);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .geo-metrics-list {
        list-style: none;
        margin: 0;
        padding: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 12px;
    }
    .geo-metrics-list li {
        font-size: 12px;
        color: var(--text-muted);
        display: flex;
        justify-content: space-between;
        margin-bottom: 6px;
    }
    .geo-metrics-list li span.val {
        color: var(--text-main);
        font-weight: 600;
    }

    /* Knowledge Breakdown Section */
    .breakdown-row {
        display: flex;
        align-items: center;
        gap: 36px;
        margin-bottom: 42px;
    }
    .breakdown-row:last-child {
        margin-bottom: 0;
    }
    .breakdown-row.reverse {
        flex-direction: row-reverse;
    }
    .breakdown-pic-box {
        flex: 1 1 45%;
        position: relative;
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-hud);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    }
    .breakdown-pic-box img {
        width: 100%;
        height: auto;
    }
    .breakdown-info-box {
        flex: 1 1 55%;
    }
    .breakdown-tag {
        font-size: 12px;
        color: var(--accent-neon);
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 8px;
        display: block;
    }
    .breakdown-title {
        font-size: 22px;
        font-weight: 800;
        color: var(--text-main);
        margin-bottom: 14px;
        line-height: 1.4;
    }
    .breakdown-text {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.8;
        margin-bottom: 18px;
    }
    .breakdown-checkpoints {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .breakdown-checkpoints li {
        font-size: 13.5px;
        color: var(--text-body);
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .breakdown-checkpoints li i {
        color: var(--accent-cyan);
        font-size: 13px;
    }

    /* FAQ Collapsible Panel */
    .faq-accordion-box {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        margin-bottom: 14px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-accordion-box:hover {
        border-color: var(--border-hud);
    }
    .faq-header-trigger {
        padding: 18px 22px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        cursor: pointer;
        user-select: none;
        background: rgba(255, 255, 255, 0.01);
    }
    .faq-question-text {
        font-size: 15.5px;
        font-weight: 700;
        color: var(--text-main);
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .faq-question-text i {
        color: var(--accent-cyan);
    }
    .faq-arrow-icon {
        color: var(--text-muted);
        transition: transform 0.3s ease;
    }
    .faq-answer-panel {
        padding: 0 22px 20px;
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.8;
        border-top: 1px solid rgba(255, 255, 255, 0.04);
        padding-top: 16px;
    }

    /* Mini CTA Banner */
    .mini-cta-bar {
        background: linear-gradient(90deg, #181C26 0%, #202636 50%, #181C26 100%);
        border: 1px solid var(--border-hud);
        border-radius: var(--radius-md);
        padding: 30px 40px;
        box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
    }
    .mini-cta-flex {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 24px;
    }
    .mini-cta-text h3 {
        font-size: 20px;
        font-weight: 800;
        color: var(--text-main);
        margin-bottom: 6px;
    }
    .mini-cta-text p {
        font-size: 13.5px;
        color: var(--text-muted);
        margin: 0;
    }
    .btn-cyber-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        font-size: 14px;
        font-weight: 700;
        color: #FFF;
        background: linear-gradient(135deg, var(--accent-neon) 0%, #b81440 100%);
        border: none;
        border-radius: var(--radius-sm);
        clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
        box-shadow: var(--glow-neon);
        transition: var(--transition);
        cursor: pointer;
    }
    .btn-cyber-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 24px rgba(255, 46, 99, 0.8);
        color: #FFF;
    }

    /* Site Footer */
    .site-footer {
        background: #090B0E;
        border-top: 1px solid var(--border-subtle);
        padding: 56px 0 24px;
        position: relative;
    }
    .footer-col-title {
        color: var(--text-main);
        font-size: 14.5px;
        font-weight: 700;
        margin-bottom: 16px;
        letter-spacing: 0.5px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-links li {
        margin-bottom: 10px;
    }
    .footer-links a {
        color: var(--text-muted);
        font-size: 13px;
    }
    .footer-links a:hover {
        color: var(--accent-cyan);
        padding-left: 4px;
    }
    .footer-bottom {
        margin-top: 40px;
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 12.5px;
        color: var(--text-muted);
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .spotlight-inner {
            flex-direction: column;
        }
        .breakdown-row, .breakdown-row.reverse {
            flex-direction: column;
            gap: 24px;
        }
    }
    @media (max-width: 768px) {
        .nav-menu {
            display: none;
        }
        .spotlight-stats-grid {
            grid-template-columns: 1fr;
        }
        .mini-cta-bar {
            padding: 24px;
            text-align: center;
        }
        .mini-cta-flex {
            justify-content: center;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
    }