:root,[data-theme=white]{--bg:#f8fafc;--bg-secondary:#f1f5f9;--bg-card:#fffc;--text:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--border:#94a3b840;--border-solid:#e2e8f0;--primary:#3b82f6;--primary-light:#60a5fa;--primary-dark:#2563eb;--accent:#6366f1;--accent-strong:#4f46e5;--accent-light:#818cf8;--accent-soft:#818cf840;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--logo-filter:none}[data-theme=graphite]{--bg:oklch(17% .005 280);--bg-secondary:oklch(20% .006 275);--bg-card:oklch(23.5% .007 275/.85);--text:oklch(96% .004 280);--text-secondary:oklch(81% .005 280);--text-muted:oklch(63% .006 280);--border:oklch(30% .008 275/.4);--border-solid:oklch(30% .008 275);--primary:oklch(68% .16 38);--primary-light:oklch(72% .18 36);--primary-dark:oklch(58% .14 40);--accent:oklch(68% .16 38);--accent-strong:oklch(60% .16 40);--accent-light:oklch(72% .18 36);--accent-soft:oklch(72% .18 36/.25);--success:oklch(70% .14 145);--warning:oklch(78% .14 85);--danger:oklch(66% .18 25);--logo-filter:none}[data-theme=sandstone]{--bg:oklch(97.5% .008 80);--bg-secondary:oklch(95.5% .011 78);--bg-card:oklch(99.5% .003 80/.85);--text:oklch(22% .014 55);--text-secondary:oklch(36% .013 55);--text-muted:oklch(53% .011 60);--border:oklch(88% .016 76/.4);--border-solid:oklch(88% .016 76);--primary:oklch(60% .19 38);--primary-light:oklch(65% .18 36);--primary-dark:oklch(54% .21 36);--accent:oklch(60% .19 38);--accent-strong:oklch(54% .21 36);--accent-light:oklch(65% .18 36);--accent-soft:oklch(65% .18 36/.25);--success:#16a34a;--warning:#d97706;--danger:#dc2626;--logo-filter:none}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;transition:background .3s,color .3s;overflow-x:hidden}a{color:var(--primary-light);text-decoration:none;transition:color .2s}a:hover{color:var(--primary)}img{max-width:100%;height:auto}::selection{background:var(--primary);color:#fff}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}.section{padding:100px 0;position:relative}.section-header{text-align:center;margin-bottom:60px}.section-label{text-transform:uppercase;letter-spacing:2px;color:var(--primary-light);margin-bottom:12px;font-size:13px;font-weight:600;display:inline-block}.section-title{color:var(--text);letter-spacing:-.02em;margin-bottom:16px;font-size:clamp(28px,5vw,42px);font-weight:700}.section-desc{color:var(--text-secondary);max-width:600px;margin:0 auto;font-size:16px;line-height:1.8}.glass-card{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius-lg,20px);transition:transform .3s,box-shadow .3s,border-color .3s,background .3s}.glass-card:hover{border-color:#3b82f64d;transform:translateY(-4px);box-shadow:0 20px 60px #3b82f61a}.btn{border-radius:var(--radius,12px);cursor:pointer;border:none;align-items:center;gap:8px;padding:12px 28px;font-size:15px;font-weight:600;text-decoration:none;transition:all .3s;display:inline-flex}.btn-primary{background:linear-gradient(135deg, var(--primary), var(--accent));color:#fff;box-shadow:0 4px 20px #3b82f64d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #3b82f666}.btn-outline{color:var(--text);border:1px solid var(--border);background:0 0}.btn-outline:hover{border-color:var(--primary-light);color:var(--primary-light);background:#3b82f60d}:root,[data-theme=white]{--color-indigo:#6366f1;--color-amber:#f59e0b;--color-emerald:#10b981;--color-blue:#3b82f6;--color-violet:#8b5cf6;--color-cyan:#06b6d4;--color-orange:#f97316;--color-teal:#14b8a6;--color-pink:#ec4899;--color-slate:#64748b}[data-theme=graphite]{--color-indigo:oklch(70% .14 270);--color-amber:oklch(78% .14 85);--color-emerald:oklch(70% .14 160);--color-blue:oklch(70% .14 250);--color-violet:oklch(70% .14 290);--color-cyan:oklch(72% .12 200);--color-orange:oklch(78% .16 55);--color-teal:oklch(70% .14 175);--color-pink:oklch(70% .16 350);--color-slate:oklch(70% .01 280)}[data-theme=sandstone]{--color-indigo:#6366f1;--color-amber:#d97706;--color-emerald:#059669;--color-blue:#2563eb;--color-violet:#7c3aed;--color-cyan:#0891b2;--color-orange:#ea580c;--color-teal:#0d9488;--color-pink:#db2777;--color-slate:#475569}.hero-glow{pointer-events:none;width:60%;height:60%;position:absolute}.hero-glow--tl{background:radial-gradient(ellipse, color-mix(in srgb, var(--primary) 12%, transparent) 0%, transparent 70%);top:-20%;left:-10%}.hero-glow--br{background:radial-gradient(ellipse, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 70%);bottom:-20%;right:-10%}@media (width<=768px){.section{padding:60px 0}.container{padding:0 16px}}