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rgba(0,180,255,.12);--mesh-color-1:rgba(0,180,255,.07);--mesh-color-2:rgba(0,100,220,.05)}:root.light{--bg:#f4f7fb;--bg-2:#eef2f8;--surface:#fff;--surface-2:#f0f4fa;--border:rgba(0,0,0,.08);--border-hover:rgba(0,140,220,.55);--primary:#0080dc;--primary-dim:rgba(0,128,220,.08);--primary-glow:rgba(0,128,220,.18);--text-1:#0d1829;--text-2:#4a5a72;--icon-color:rgba(0,0,0,.6);--shadow:rgba(0,30,80,.12);--shadow-sm:rgba(0,20,60,.07);--tag-accent:linear-gradient(180deg,#0080dc,#004ea0);--hero-grad:linear-gradient(135deg,#0d1829,#0080dc 55%,#004ea0);--card-hover-shadow:0 10px 40px rgba(0,100,200,.12);--mesh-color-1:rgba(0,140,220,.08);--mesh-color-2:rgba(0,80,180,.05)}body{background:var(--bg);color:var(--text-1);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background .3s,color .3s}.app{min-height:100vh;position:relative}.bg-mesh{background:radial-gradient(ellipse 80% 50% at 50% 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var(--border);border-radius:12px;color:var(--text-2);cursor:pointer;font-size:13px;gap:6px;padding:8px 12px;transition:all .25s}.icon-btn:hover{background:var(--primary-dim);border-color:var(--border-hover);box-shadow:0 0 16px var(--primary-glow);color:var(--primary)}.icon-btn:active{transform:scale(.96)}.lang-tag{font-size:12px;font-weight:600;letter-spacing:.5px;min-width:26px;text-align:center}.btn-ghost{align-items:center;background:transparent;border:1.5px solid var(--border-hover);border-radius:100px;color:var(--primary);cursor:pointer;display:flex;font-size:13px;font-weight:500;gap:8px;letter-spacing:.2px;padding:7px 18px;transition:all .25s}.btn-ghost:hover{background:var(--primary-dim);border-color:var(--primary);box-shadow:0 0 20px var(--primary-glow)}.hero{padding:72px 0 56px;position:relative;z-index:1}.hero-badge{align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:100px;color:var(--text-2);display:inline-flex;font-size:12px;gap:10px;letter-spacing:.3px;margin-bottom:28px;padding:6px 18px}.badge-dot{animation:blink 2.5s ease-in-out infinite;background:var(--primary);border-radius:50%;box-shadow:0 0 8px var(--primary);flex-shrink:0;height:6px;width:6px}@keyframes blink{0%,to{opacity:1}50%{opacity:.35}}.hero-title{background:var(--hero-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:clamp(34px,7vw,58px);font-weight:800;letter-spacing:-1.5px;line-height:1.08;margin-bottom:18px}.hero-desc{color:var(--text-2);font-size:15px;line-height:1.75;margin-bottom:40px;max-width:480px}.vip-card{border:1px solid var(--border);border-radius:14px;box-shadow:0 20px 70px var(--shadow),0 0 50px var(--primary-glow);overflow:hidden;transition:box-shadow .35s,transform .35s}.vip-card:hover{box-shadow:0 28px 90px var(--shadow),0 0 80px var(--primary-glow);transform:translateY(-5px)}.vip-card img{display:block;height:auto;width:100%}.section-wrap{padding:12px 0 72px;position:relative;z-index:1}.section-head{margin-bottom:28px}.section-tag{align-items:center;color:var(--text-1);display:flex;font-size:clamp(20px,3.5vw,28px);font-weight:700;gap:14px;letter-spacing:-.3px;margin-bottom:8px}.tag-line{background:var(--tag-accent);border-radius:2px;display:block;flex-shrink:0;height:30px;width:4px}.section-sub{color:var(--text-2);font-size:13px;line-height:1.6;margin-left:18px}.card-list{display:flex;flex-direction:column;gap:10px}.nav-card{align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:14px;color:var(--text-1);display:flex;gap:16px;padding:18px 20px;position:relative;text-decoration:none;transition:all .25s cubic-bezier(.4,0,.2,1)}.nav-card:hover{background:color-mix(in srgb,var(--surface) 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48px;position:relative;z-index:1}.h743-hero-inner{max-width:600px}.h743-product-mark{align-items:center;color:var(--primary);display:inline-flex;font-size:12px;font-weight:500;gap:8px;letter-spacing:.3px;margin-bottom:20px}.h743-title{background:var(--hero-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-size:clamp(30px,6vw,52px);font-weight:800;letter-spacing:-1.5px;line-height:1.1;margin-bottom:16px}.h743-desc{color:var(--text-2);font-size:15px;line-height:1.7;max-width:480px}.h743-grid{display:grid;gap:14px;grid-template-columns:1fr 1fr}.h743-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;display:flex;flex-direction:column;gap:16px;padding:24px;transition:all .25s}.h743-card:hover{border-color:var(--border-hover);box-shadow:var(--card-hover-shadow);transform:translateY(-3px)}.h743-card-icon{align-items:center;background:var(--surface-2);border:1px solid 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