.vos-hero-left,.vos-hero-right{z-index:2;position:relative}:root{--vos-primary:#2563eb;--vos-primary-dark:#1d4ed8;--vos-primary-light:#3b82f6;--vos-secondary:#0ea5e9;--vos-accent:#06b6d4;--vos-success:#10b981;--vos-warning:#f59e0b;--vos-danger:#ef4444;--vos-dark:#0f172a;--vos-dark-2:#1e293b;--vos-dark-3:#334155;--vos-light:#f8fafc;--vos-light-2:#f1f5f9;--vos-light-3:#e2e8f0;--vos-text:#1e293b;--vos-text-muted:#64748b;--vos-white:#ffffff;--vos-grad-hero:linear-gradient(
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    #0f172a 0%,
    #1e3a5f 40%,
    #0f2942 100%
  );--vos-grad-primary:linear-gradient(135deg, #2563eb, #06b6d4);--vos-grad-accent:linear-gradient(135deg, #0ea5e9, #06b6d4);--vos-grad-success:linear-gradient(135deg, #10b981, #06b6d4);--vos-grad-card:linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.01)
  );--vos-shadow-sm:0 1px 3px rgba(0, 0, 0, 0.08),0 1px 2px rgba(0, 0, 0, 0.06);--vos-shadow-md:0 4px 16px rgba(0, 0, 0, 0.1),0 2px 6px rgba(0, 0, 0, 0.07);--vos-shadow-lg:0 10px 40px rgba(0, 0, 0, 0.14),0 4px 12px rgba(0, 0, 0, 0.08);--vos-shadow-xl:0 20px 60px rgba(0, 0, 0, 0.18),0 8px 20px rgba(0, 0, 0, 0.1);--vos-shadow-glow:0 0 30px rgba(37, 99, 235, 0.3);--vos-radius-sm:8px;--vos-radius-md:14px;--vos-radius-lg:20px;--vos-radius-xl:28px;--vos-radius-full:999px;--vos-font:"Poppins",system-ui,-apple-system,sans-serif;--vos-transition:all 0.25s cubic-bezier(0.4, 0, 0.2, 1);--vos-transition-slow:all 0.5s cubic-bezier(0.4, 0, 0.2, 1)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--vos-font);color:var(--vos-text);background:var(--vos-light);line-height:1.6;-webkit-font-smoothing:antialiased}img,svg{display:block;max-width:100%}.vos-hero-section{position:relative;background:var(--vos-grad-hero);overflow:hidden;padding:100px 24px 80px}.vos-hero-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:60px}.vos-hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(37,99,235,.2);border:1px solid rgba(37,99,235,.35);color:#93c5fd;font-size:.78rem;font-weight:600;padding:6px 16px;border-radius:var(--vos-radius-full);letter-spacing:.06em;text-transform:uppercase;margin-bottom:22px}.vos-hero-title{font-size:clamp(2rem, 4vw, 3.2rem);font-weight:800;color:var(--vos-white);line-height:1.18;margin-bottom:20px}.vos-gradient-text{background:var(--vos-grad-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.vos-hero-desc{font-size:1.05rem;color:#94a3b8;line-height:1.75;margin-bottom:32px;max-width:540px}.vos-hero-desc strong{color:#e2e8f0}.vos-hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}.vos-btn-outline,.vos-btn-primary{display:inline-flex;gap:9px;font-family:var(--vos-font);font-size:.95rem;font-weight:600;border-radius:var(--vos-radius-full);text-decoration:none;transition:var(--vos-transition)}.vos-btn-primary{align-items:center;background:var(--vos-grad-primary);color:var(--vos-white);padding:13px 28px;box-shadow:0 4px 18px rgba(37,99,235,.4)}.vos-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(37,99,235,.55)}.vos-btn-outline{align-items:center;background:0 0;color:#93c5fd;padding:12px 26px;border:1.5px solid rgba(147,197,253,.35)}.vos-formula-text,.vos-radius-label{font-family:"Courier 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i{color:var(--vos-success);font-size:.9rem}.vos-hero-right{display:flex;justify-content:center;align-items:center;min-height:400px}.vos-sphere-wrapper{position:relative;width:300px;height:300px;display:flex;align-items:center;justify-content:center}.vos-orbit{position:absolute;border:1.5px solid rgba(37,99,235,.3);border-radius:50%;animation:linear infinite vos-orbit-spin}.vos-orbit-1{width:360px;height:360px;animation-duration:12s;border-color:rgba(37,99,235,.25)}.vos-orbit-2{width:290px;height:290px;animation-duration:8s;animation-direction:reverse;border-color:rgba(14,165,233,.3)}.vos-orbit-3{width:420px;height:420px;animation-duration:18s;border-color:rgba(6,182,212,.2)}.vos-orbit-dot{position:absolute;top:-5px;left:50%;width:10px;height:10px;background:var(--vos-grad-primary);border-radius:50%;transform:translateX(-50%);box-shadow:0 0 12px rgba(37,99,235,.8)}@keyframes 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70%);border-radius:50%;transform:rotate(-20deg)}.vos-sphere-lines{position:absolute;inset:0;border-radius:50%;background:repeating-linear-gradient(0deg,transparent,transparent 18px,rgba(255,255,255,.05) 18px,rgba(255,255,255,.05) 19px)}.vos-formula-float{position:absolute;background:rgba(15,23,42,.85);border:1px solid rgba(37,99,235,.35);backdrop-filter:blur(10px);border-radius:var(--vos-radius-md);padding:10px 16px;display:flex;flex-direction:column;align-items:center;gap:2px;z-index:20;animation:3s ease-in-out infinite vos-float-pulse}.vos-formula-top{top:-20px;right:-30px;animation-delay:0s}.vos-formula-bottom{bottom:0;left:-40px;animation-delay:1.5s}@keyframes vos-float-pulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}.vos-formula-label{font-size:.68rem;color:#64748b;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.vos-formula-preview-label,.vos-section-badge{letter-spacing:.06em;text-transform:uppercase}.vos-formula-text{font-size:.88rem;color:#93c5fd;font-weight:700}.vos-radius-line{position:absolute;top:50%;left:50%;transform:translate(-4px,0);display:flex;align-items:center;z-index:15}.vos-radius-dot{width:8px;height:8px;border-radius:50%;background:var(--vos-accent);box-shadow:0 0 8px rgba(6,182,212,.8)}.vos-radius-track{width:96px;height:2px;background:linear-gradient(90deg,transparent,var(--vos-accent))}.vos-radius-label{font-size:.9rem;font-weight:700;color:var(--vos-accent);margin-left:4px}.vos-particles{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}.vos-particle{position:absolute;border-radius:50%;opacity:.15;animation:linear infinite vos-particle-drift}.vos-particle:first-child{width:200px;height:200px;background:radial-gradient(#2563eb,transparent);top:-50px;left:10%;animation-duration:20s}.vos-particle:nth-child(2){width:150px;height:150px;background:radial-gradient(#06b6d4,transparent);top:60%;right:5%;animation-duration:28s;animation-delay:-8s}.vos-particle:nth-child(3){width:100px;height:100px;background:radial-gradient(#0ea5e9,transparent);bottom:10%;left:30%;animation-duration:22s;animation-delay:-4s}.vos-particle:nth-child(4){width:80px;height:80px;background:radial-gradient(#2563eb,transparent);top:30%;right:20%;animation-duration:30s;animation-delay:-12s}.vos-particle:nth-child(5){width:120px;height:120px;background:radial-gradient(#06b6d4,transparent);bottom:20%;left:5%;animation-duration:18s;animation-delay:-6s}.vos-particle:nth-child(6){width:60px;height:60px;background:radial-gradient(#0ea5e9,transparent);top:10%;right:35%;animation-duration:25s;animation-delay:-15s}@keyframes vos-particle-drift{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-40px) scale(1.1)}}.vos-calculator-section{padding:80px 24px;background:var(--vos-light)}.vos-calc-container,.vos-guide-container{max-width:1100px;margin:0 auto}.vos-section-header{text-align:center;margin-bottom:50px}.vos-section-badge{display:inline-flex;align-items:center;gap:7px;background:var(--vos-light-2);border:1px solid var(--vos-light-3);color:var(--vos-primary);font-size:.78rem;font-weight:700;padding:6px 18px;border-radius:var(--vos-radius-full);margin-bottom:16px}.vos-section-title{font-size:clamp(1.6rem, 3vw, 2.4rem);font-weight:800;color:var(--vos-dark);margin-bottom:12px}.vos-section-sub{font-size:1rem;color:var(--vos-text-muted);max-width:560px;margin:0 auto}.vos-calc-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:start}.vos-calculator-card{background:var(--vos-white);border-radius:var(--vos-radius-xl);padding:36px;box-shadow:var(--vos-shadow-lg);border:1px solid var(--vos-light-3);position:relative;overflow:hidden}.vos-calculator-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--vos-grad-primary);border-radius:var(--vos-radius-xl) var(--vos-radius-xl) 0 0}.vos-card-header{display:flex;align-items:center;gap:16px;margin-bottom:28px;padding-bottom:20px;border-bottom:1px solid var(--vos-light-3)}.vos-card-icon,.vos-input-label{align-items:center;display:flex}.vos-card-icon{width:48px;height:48px;background:var(--vos-grad-primary);border-radius:var(--vos-radius-md);justify-content:center;color:#fff;font-size:1.2rem;flex-shrink:0;box-shadow:0 4px 14px rgba(37,99,235,.3)}.vos-input-field,.vos-select-field{width:100%;height:46px;max-height:46px;padding:0 44px 0 42px;font-family:var(--vos-font);background:var(--vos-light);outline:0}.vos-card-title{font-size:1.1rem;font-weight:700;color:var(--vos-dark)}.vos-card-sub{font-size:.82rem;color:var(--vos-text-muted);margin-top:2px}.vos-input-group{margin-bottom:22px}.vos-input-label{gap:7px;font-size:.83rem;font-weight:600;color:var(--vos-dark);margin-bottom:8px}.vos-error-msg,.vos-input-field,.vos-select-field{font-weight:500;transition:var(--vos-transition)}.vos-input-label i{color:var(--vos-primary);font-size:.8rem}.vos-label-required{color:var(--vos-danger);font-size:.85rem}.vos-input-wrapper{position:relative;display:flex;align-items:center}.vos-input-icon-left{position:absolute;left:14px;color:var(--vos-text-muted);font-size:.9rem;pointer-events:none;z-index:2}.vos-input-field{border:2px solid var(--vos-light-3);border-radius:var(--vos-radius-md);font-size:.95rem;color:var(--vos-dark);appearance:none;-moz-appearance:textfield}.vos-input-field::-webkit-inner-spin-button,.vos-input-field::-webkit-outer-spin-button{-webkit-appearance:none}.vos-input-field::placeholder{color:#cbd5e1;font-weight:400}.vos-input-field:focus,.vos-select-field:focus{border-color:var(--vos-primary);background:var(--vos-white);box-shadow:0 0 0 3px rgba(37,99,235,.12)}.vos-input-field.vos-input-error{border-color:var(--vos-danger);background:#fff5f5;box-shadow:0 0 0 3px rgba(239,68,68,.1)}.vos-input-clear{position:absolute;right:12px;color:#cbd5e1;cursor:pointer;font-size:1rem;display:none;transition:var(--vos-transition);z-index:2}.vos-input-clear:hover{color:var(--vos-danger)}.vos-select-field{border:2px solid var(--vos-light-3);border-radius:var(--vos-radius-md);font-size:.95rem;color:var(--vos-dark);appearance:none;cursor:pointer}.vos-select-arrow{position:absolute;right:14px;color:var(--vos-text-muted);font-size:.8rem;pointer-events:none}.vos-error-msg{font-size:.78rem;color:var(--vos-danger);min-height:18px;margin-top:6px;display:flex;align-items:center;gap:5px;opacity:0;transform:translateY(-4px)}.vos-error-msg.vos-error-visible{opacity:1;transform:translateY(0)}.vos-formula-preview{background:linear-gradient(135deg,#f8fafc,#eff6ff);border:1px solid #dbeafe;border-radius:var(--vos-radius-md);padding:16px 20px;margin-bottom:24px}.vos-formula-preview-label{font-size:.75rem;font-weight:600;color:var(--vos-primary);margin-bottom:8px;display:flex;align-items:center;gap:6px}.vos-formula-preview-eq{font-size:1.1rem;font-weight:700;color:var(--vos-dark);font-family:"Courier 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22px;align-items:center;gap:8px;background:0 0;color:var(--vos-text-muted);font-size:.9rem;font-weight:600;border:2px solid var(--vos-light-3);border-radius:var(--vos-radius-md)}.vos-btn-reset:hover{background:#fff5f5;border-color:#fca5a5;color:var(--vos-danger)}.vos-results-panel{display:flex;flex-direction:column;gap:20px}.vos-primary-result{background:var(--vos-grad-hero);border-radius:var(--vos-radius-xl);padding:36px 28px;text-align:center;position:relative;overflow:hidden;box-shadow:var(--vos-shadow-xl),var(--vos-shadow-glow)}.vos-primary-result::before{content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;background:radial-gradient(circle,rgba(37,99,235,.25),transparent);border-radius:50%}.vos-primary-result::after{content:"";position:absolute;bottom:-40px;left:-40px;width:160px;height:160px;background:radial-gradient(circle,rgba(6,182,212,.2),transparent);border-radius:50%}.vos-primary-result-label{font-size:.8rem;font-weight:600;color:#64748b;text-transform:uppercase;letter-spacing:.08em;margin-bottom:12px;position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:7px}.vos-primary-result-label i{color:var(--vos-accent)}.vos-primary-result-value{font-size:clamp(2rem, 4vw, 3.2rem);font-weight:900;background:var(--vos-grad-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.1;margin-bottom:6px;position:relative;z-index:1;transition:var(--vos-transition-slow)}.vos-btn-pdf,.vos-faq-item,.vos-faq-toggle,.vos-guide-card,.vos-result-card,.vos-result-card-icon,.vos-result-card::before{transition:var(--vos-transition)}.vos-primary-result-unit{font-size:1rem;color:#475569;font-weight:600;margin-bottom:10px;position:relative;z-index:1}.vos-primary-result-formula{font-size:.82rem;color:#475569;font-family:"Courier New",monospace;background:rgba(37,99,235,.08);border:1px solid rgba(37,99,235,.15);border-radius:var(--vos-radius-full);padding:4px 14px;display:inline-block;position:relative;z-index:1}.vos-results-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.vos-app-grid,.vos-guide-grid,.vos-tips-grid{grid-template-columns:1fr 1fr}.vos-result-card{background:var(--vos-white);border:1px solid var(--vos-light-3);border-radius:var(--vos-radius-lg);padding:20px 14px;text-align:center;box-shadow:var(--vos-shadow-sm);position:relative;overflow:hidden}.vos-result-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--vos-grad-accent);transform:scaleX(0)}.vos-result-card:hover{transform:translateY(-3px);box-shadow:var(--vos-shadow-md);border-color:transparent}.vos-result-card:hover::before{transform:scaleX(1)}.vos-result-card-icon{width:38px;height:38px;background:var(--vos-light-2);border-radius:var(--vos-radius-sm);display:flex;align-items:center;justify-content:center;margin:0 auto 10px;color:var(--vos-primary);font-size:.95rem}.vos-result-card:hover .vos-result-card-icon{background:var(--vos-grad-primary);color:#fff}.vos-result-card-label{font-size:.72rem;font-weight:700;color:var(--vos-text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:3px}.vos-result-card-formula{font-size:.75rem;font-family:"Courier 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rgba(220,38,38,.3)}.vos-qr-label,.vos-qr-site-name{color:var(--vos-text-muted);font-weight:600}.vos-btn-pdf:hover,.vos-modal-confirm:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(220,38,38,.45)}.vos-qr-wrapper{display:flex;flex-direction:column;align-items:center;gap:4px;flex-shrink:0}.vos-qr-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;display:flex;align-items:center;gap:4px}#vos-qr-code{width:100px;height:100px;border-radius:var(--vos-radius-sm);overflow:hidden;border:2px solid var(--vos-light-3)}#vos-qr-code canvas,#vos-qr-code img{display:block!important;width:100px!important;height:100px!important}.vos-qr-site-name{font-size:.7rem;text-align:center}.vos-guide-featured,.vos-guide-featured h3,.vos-guide-featured strong{color:var(--vos-white)}.vos-guide-section{background:linear-gradient(180deg,var(--vos-light-2) 0,var(--vos-white) 100%);padding:80px 24px}.vos-guide-grid{display:grid;gap:24px}.vos-guide-card{background:var(--vos-white);border:1px solid var(--vos-light-3);border-radius:var(--vos-radius-xl);padding:32px;box-shadow:var(--vos-shadow-sm)}.vos-guide-card:hover{box-shadow:var(--vos-shadow-md);transform:translateY(-2px)}.vos-guide-featured{grid-column:1/-1;background:var(--vos-grad-hero);border-color:transparent}.vos-guide-featured p{color:#94a3b8}.vos-guide-featured em{color:#93c5fd}.vos-guide-card-icon{width:46px;height:46px;background:var(--vos-grad-primary);border-radius:var(--vos-radius-md);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem;margin-bottom:18px;box-shadow:0 4px 14px rgba(37,99,235,.25)}.vos-guide-featured .vos-guide-card-icon{background:rgba(37,99,235,.25);border:1px solid rgba(37,99,235,.35);box-shadow:none}.vos-guide-card h3{font-size:1.15rem;font-weight:700;color:#fff;margin-bottom:14px}.vos-guide-card p{font-size:.92rem;color:var(--vos-text-muted);line-height:1.75;margin-bottom:10px}.vos-guide-card 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li{display:flex;align-items:flex-start;gap:10px;font-size:.87rem;color:var(--vos-text-muted);line-height:1.6}.vos-disclaimer-list li i{color:var(--vos-success);margin-top:3px;flex-shrink:0;font-size:.85rem}.vos-modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.65);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:9999;padding:20px;animation:.2s vos-modal-in}@keyframes vos-modal-in{from{opacity:0}to{opacity:1}}.vos-modal-box{background:var(--vos-white);border-radius:var(--vos-radius-xl);padding:44px 36px 36px;text-align:center;max-width:420px;width:100%;box-shadow:var(--vos-shadow-xl);animation:.3s cubic-bezier(.34,1.56,.64,1) vos-modal-box-in}@keyframes vos-modal-box-in{from{transform:scale(.85) translateY(20px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.vos-modal-icon{width:64px;height:64px;background:linear-gradient(135deg,#fef3c7,#fde68a);border:2px solid 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(max-width:480px){.vos-hero-title{font-size:1.75rem}.vos-sphere-wrapper{width:200px;height:200px}.vos-sphere-3d{width:130px;height:130px}.vos-orbit-1{width:240px;height:240px}.vos-orbit-2{width:190px;height:190px}.vos-orbit-3{width:280px;height:280px}.vos-formula-float{display:none}.vos-action-buttons{flex-direction:column}.vos-btn-reset{justify-content:center}.vos-app-grid,.vos-results-grid{grid-template-columns:1fr}.vos-section-title{font-size:1.5rem}.vos-guide-formula-display{font-size:1.1rem}}.vos-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:2px solid var(--vos-primary);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:0s!important;transition-duration:0s!important}}