:root{--bg: #0f1220;--surface: #171b30;--surface-2: #1e2440;--border: #2b3252;--text: #eef0ff;--muted: #a4abc9;--accent: #5b8cff;--accent-2: #8f7bff;--radius: 14px}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:radial-gradient(1200px 600px at 20% -10%,#232a52 0%,var(--bg) 55%) fixed,var(--bg);color:var(--text);min-height:100vh}.container{max-width:1080px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--border);background:#0f1220cc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--text);font-weight:700}.brand-mark{font-size:22px;color:var(--accent)}.brand-text em{font-style:normal;color:var(--muted);font-weight:400}.nav{display:flex;gap:18px}.nav a{color:var(--muted);text-decoration:none;font-size:14px}.nav a:hover{color:var(--text)}main{padding:40px 0 60px}.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 10px;letter-spacing:-.02em}.hero p{color:var(--muted);max-width:640px;line-height:1.6;margin:0 0 28px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}.card{background:linear-gradient(180deg,var(--surface-2),var(--surface));border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-decoration:none;color:inherit;transition:transform .15s ease,border-color .15s ease;display:flex;flex-direction:column;gap:8px}.card:hover{transform:translateY(-2px);border-color:var(--accent)}.card h2{margin:6px 0 0;font-size:20px}.tagline{color:var(--muted);margin:0;font-size:14px;line-height:1.5}.card-top{display:flex;gap:6px;flex-wrap:wrap}.card-link{margin-top:auto;padding-top:12px;color:var(--accent);font-weight:600;font-size:14px}.badge{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:#5b8cff26;border:1px solid rgba(91,140,255,.4);color:#bcd0ff;padding:3px 8px;border-radius:999px}.tag{font-size:12px;color:var(--muted)}.source-link{font-size:13px;color:var(--accent);text-decoration:none;font-weight:600}.source-link:hover{text-decoration:underline}.back{color:var(--muted);text-decoration:none;font-size:14px}.back:hover{color:var(--text)}.case-head h1{font-size:clamp(26px,3.5vw,38px);margin:12px 0 6px}.case-head .tagline{font-size:17px}.case-head p{color:var(--muted);line-height:1.6}.meta-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.charts{display:grid;gap:18px;margin-top:28px}.tabs{display:flex;gap:8px;margin-bottom:2px;flex-wrap:wrap}.tab-btn{background:transparent;border:1px solid var(--border);color:var(--muted);padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer}.tab-btn:hover{color:var(--text);border-color:var(--accent)}.tab-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.chart-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.chart-card h2{margin:0 0 4px;font-size:19px}.chart-desc{color:var(--muted);font-size:14px;margin:0 0 12px}.chart{min-height:200px}.chart .apexcharts-toolbar{opacity:1!important}.chart .apexcharts-toolbar svg{fill:#eef0ff!important}.chart .apexcharts-toolbar div:hover svg{fill:var(--accent)!important}.chart .apexcharts-toolbar .apexcharts-selected svg{fill:var(--accent)!important}.chart .apexcharts-menu{background:var(--surface-2)!important;border:1px solid var(--border)!important;color:var(--text)!important}.chart .apexcharts-menu-item:hover{background:#5b8cff40!important}.treemap-tip{padding:4px 2px;font-size:13px;line-height:1.5}.chart-controls{margin:4px 0 12px;display:flex;gap:16px;flex-wrap:wrap}.control-label{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted)}.control-label select{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 12px;font-size:14px;max-width:100%}.control-label select:focus{outline:none;border-color:var(--accent)}.data-table{margin-top:24px}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius)}table{width:100%;border-collapse:collapse;font-size:14px;background:var(--surface)}th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;text-transform:uppercase;font-size:12px;letter-spacing:.05em}tbody tr:last-child td{border-bottom:none}.empty{padding:60px 0;text-align:left}.empty h1{margin:0 0 10px}.empty p{color:var(--muted)}.empty code,p code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.9em}.btn{display:inline-block;margin-top:16px;background:var(--accent);color:#fff;padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600}.site-footer{border-top:1px solid var(--border);padding:20px 0 32px;color:var(--muted);font-size:13px}