:root{--bg:#070b14;--bg-soft:#0d1322;--bg-card:#111a30;--bg-card-hover:#16203a;--border:#1f2b47;--border-strong:#2e3d63;--text:#eef1f8;--text-dim:#9aa5c0;--accent:#6366f1;--accent-2:#22d3ee;--success:#34d399;--danger:#f87171;--gradient:linear-gradient(135deg,#6366f1,#22d3ee);--shadow:0 10px 40px -12px rgba(99,102,241,.35);--radius:16px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:Segoe UI,Tahoma,system-ui,-apple-system,sans-serif;line-height:1.75;font-size:16px;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button{font-family:inherit;cursor:pointer}input,select,textarea{font-family:inherit;font-size:16px}.container{width:100%;max-width:1140px;margin-inline:auto;padding-inline:20px}.skip-link{position:absolute;inset-inline-start:-9999px;z-index:200;background:var(--accent);color:#fff;padding:10px 18px;border-radius:0 0 10px 0}.skip-link:focus{inset-inline-start:0}.header{position:-webkit-sticky;position:sticky;top:0;z-index:100;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(7,11,20,.82);border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}.logo{font-size:1.2rem;font-weight:800;letter-spacing:-.02em;white-space:nowrap}.logo span{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.nav-desktop{display:none;align-items:center;gap:26px;color:var(--text-dim);font-weight:500;font-size:.95rem}.nav-desktop a.active,.nav-desktop a:hover{color:var(--text)}.header-actions{display:flex;align-items:center;gap:10px}.lang-switch{padding:8px 14px;border:1px solid var(--border-strong);border-radius:10px;color:var(--text-dim);font-weight:600;font-size:.85rem;transition:all .15s}.lang-switch:hover{color:var(--text);border-color:var(--accent)}.menu-btn{display:flex;flex-direction:column;gap:5px;background:none;border:none;padding:10px}.menu-btn span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}.mobile-nav{display:none;flex-direction:column;border-top:1px solid var(--border);background:var(--bg-soft);padding:10px 20px 20px}.mobile-nav.open{display:flex}.mobile-nav a{padding:13px 6px;border-bottom:1px solid var(--border);color:var(--text-dim);font-weight:500}.mobile-nav a:last-child{border-bottom:none}@media (min-width:860px){.nav-desktop{display:flex}.menu-btn,.mobile-nav{display:none!important}}.hero{padding:72px 0 56px;text-align:center;position:relative;overflow:hidden}.hero:before{top:-280px;width:900px;height:600px;background:radial-gradient(closest-side,rgba(99,102,241,.22),transparent)}.hero:after,.hero:before{content:"";position:absolute;left:50%;transform:translateX(-50%);pointer-events:none}.hero:after{bottom:-320px;width:700px;height:500px;background:radial-gradient(closest-side,rgba(34,211,238,.12),transparent)}.hero-inner{position:relative;z-index:1}.badge{display:inline-block;padding:6px 16px;border:1px solid rgba(34,211,238,.35);border-radius:999px;color:var(--accent-2);font-size:.82rem;font-weight:600;background:rgba(34,211,238,.06);margin-bottom:22px}.hero h1{font-size:clamp(2rem,6vw,3.6rem);font-weight:900;line-height:1.25;letter-spacing:-.02em;max-width:820px;margin-inline:auto}.grad-text{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p.lead{max-width:660px;margin:18px auto 32px;color:var(--text-dim);font-size:clamp(1rem,2vw,1.15rem)}.cta-row{display:flex;gap:12px;flex-wrap:wrap}.btn,.cta-row{justify-content:center}.btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:12px 28px;border-radius:12px;font-weight:700;font-size:.95rem;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.btn-primary{background:var(--gradient);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.btn-ghost{border:1px solid var(--border-strong);color:var(--text);background:var(--bg-card)}.btn-ghost:hover{border-color:var(--accent)}.section{padding:64px 0}.section-title{text-align:center;font-size:clamp(1.55rem,4vw,2.2rem);font-weight:800;letter-spacing:-.01em}.section-sub{text-align:center;color:var(--text-dim);margin:10px auto 44px;max-width:620px}.grid{display:grid;grid-gap:18px;gap:18px}.grid-3{grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr))}.grid-2{grid-template-columns:repeat(auto-fill,minmax(min(420px,100%),1fr))}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .2s ease,border-color .2s ease,background .2s ease}a.card:hover{transform:translateY(-4px);border-color:var(--accent);background:var(--bg-card-hover)}.card .icon{font-size:1.9rem;line-height:1}.card h3{margin:14px 0 8px;font-size:1.08rem;font-weight:700}.card p{color:var(--text-dim);font-size:.92rem}.card-link{color:var(--accent-2);font-weight:600;font-size:.88rem;display:inline-block;margin-top:14px}.feature-icon{width:48px;height:48px;display:grid;place-items:center;font-size:1.5rem;border-radius:12px;background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.25);margin-bottom:16px}.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;padding:18px 0 0;color:var(--text-dim);font-size:.84rem}.breadcrumb a:hover{color:var(--accent-2)}.page-header{padding:44px 0 12px;text-align:center}.page-header h1{font-size:clamp(1.8rem,5vw,2.6rem);font-weight:900;letter-spacing:-.02em}.page-header p{color:var(--text-dim);max-width:640px;margin:12px auto 0}.article-wrap{max-width:780px;margin-inline:auto;padding:24px 20px 64px}.article-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--text-dim);font-size:.86rem;margin:14px 0 8px;justify-content:center}.prose h2{font-size:1.45rem;margin:38px 0 14px;font-weight:800}.prose h2:first-child{margin-top:28px}.prose p{color:#c3cbdf;margin-bottom:16px}.prose a{color:var(--accent-2);font-weight:600;text-decoration:underline;text-underline-offset:3px}.prose ul{margin:0 0 16px;-webkit-padding-start:22px;padding-inline-start:22px;color:#c3cbdf}.prose li{margin-bottom:8px}.faq-section{max-width:780px;margin-inline:auto;padding:0 20px 72px}.faq-section h2{text-align:center;font-size:1.6rem;font-weight:800;margin-bottom:28px}details.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden}details.faq-item summary{list-style:none;cursor:pointer;padding:17px 20px;font-weight:600;min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:12px}details.faq-item summary::-webkit-details-marker{display:none}details.faq-item summary:after{content:"+";font-size:1.3rem;color:var(--accent-2);flex-shrink:0}details.faq-item[open] summary:after{content:"−"}details.faq-item .faq-answer{padding:0 20px 18px;color:var(--text-dim)}.tool-shell{max-width:720px;margin-inline:auto;padding:24px 20px}.tool-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:clamp(20px,4vw,34px);box-shadow:0 20px 60px -30px rgba(0,0,0,.6)}.field{margin-bottom:18px}.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:8px}.field input[type=date],.field input[type=number],.field input[type=text],.field input[type=url],.field select,.field textarea{width:100%;min-height:48px;background:var(--bg-soft);border:1px solid var(--border-strong);border-radius:12px;color:var(--text);padding:11px 14px;transition:border-color .15s,box-shadow .15s}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(99,102,241,.2)}.field textarea{resize:vertical;min-height:140px}.field-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:14px;gap:14px}input[type=range]{width:100%;accent-color:var(--accent);height:28px}.checkbox-row{display:flex;align-items:center;gap:10px;padding:11px 0;cursor:pointer;font-weight:500}.checkbox-row input[type=checkbox]{width:20px;height:20px;accent-color:var(--accent);cursor:pointer}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));grid-gap:12px;gap:12px;margin-top:20px}.result-box{background:var(--bg-soft);border:1px solid var(--border-strong);border-radius:12px;padding:16px 14px;text-align:center}.result-box .value{font-size:clamp(1.3rem,3vw,1.7rem);font-weight:800;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;word-break:break-word}.result-box .label{color:var(--text-dim);font-size:.8rem;margin-top:4px}.result-banner{background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.3);color:var(--success);border-radius:12px;font-weight:600;word-break:break-all}.error-banner,.result-banner{padding:14px 16px;margin-top:16px;font-size:.92rem}.error-banner{background:hsla(0,91%,71%,.08);border:1px solid hsla(0,91%,71%,.3);color:var(--danger);border-radius:12px}.output-box{background:var(--bg-soft);border:1px solid var(--border-strong);border-radius:12px;padding:16px;font-family:ui-monospace,Consolas,monospace;font-size:.9rem;white-space:pre-wrap;word-break:break-all;margin-top:16px;max-height:340px;overflow:auto;direction:ltr;text-align:left}.actions-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.qr-preview{display:grid;place-items:center;margin-top:20px}.qr-preview img{border-radius:12px;background:#fff;padding:12px;max-width:260px;width:100%}.stats-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:12px;gap:12px;margin-top:48px}.stat{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:20px 12px;text-align:center}.stat b{display:block;font-size:1.5rem;background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.stat span{color:var(--text-dim);font-size:.82rem}.footer{border-top:1px solid var(--border);background:var(--bg-soft);padding:48px 0 28px;margin-top:40px}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:32px;gap:32px;margin-bottom:36px}.footer h4{font-size:.95rem;margin-bottom:14px;color:var(--text)}.footer-links{display:flex;flex-direction:column;gap:10px;color:var(--text-dim);font-size:.9rem}.footer-links a:hover{color:var(--accent-2)}.footer-desc{color:var(--text-dim);font-size:.9rem;max-width:300px}.footer-bottom{border-top:1px solid var(--border);padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:var(--text-dim);font-size:.84rem}.cookie-banner{position:fixed;bottom:16px;inset-inline-start:16px;inset-inline-end:16px;z-index:300;max-width:480px;margin-inline:auto;background:var(--bg-card);border:1px solid var(--border-strong);border-radius:16px;padding:18px 20px;box-shadow:0 20px 60px rgba(0,0,0,.55);font-size:.88rem;color:var(--text-dim)}.cookie-banner .cookie-actions{display:flex;gap:10px;margin-top:14px}.cookie-banner button{flex:1 1;min-height:42px;border-radius:10px;font-weight:700;border:none}.cookie-accept{background:var(--gradient);color:#fff}.cookie-decline{background:transparent;color:var(--text-dim);border:1px solid var(--border-strong)!important}.contact-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:16px;gap:16px;max-width:860px;margin:0 auto}.center{text-align:center}.mt-lg{margin-top:40px}.ad-slot{max-width:780px;margin:28px auto;text-align:center;min-height:90px}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}