:root{--bg:#07163f;--bg2:#3b1675;--card:rgba(255,255,255,.86);--text:#12203a;--muted:#5d6b86;--primary:#ff8a00;--accent:#6b6bff;--white:#fff;--shadow:0 16px 40px rgba(8,21,63,.15);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:linear-gradient(135deg,#edf4ff,#fff)}body[data-theme='dark']{--card:rgba(19,27,58,.85);--text:#eef3ff;--muted:#b8c3e4;background:linear-gradient(135deg,#06102e,#120b26)}a{text-decoration:none;color:inherit}.container{width:min(1180px,92vw);margin:auto}.glass{backdrop-filter:blur(16px);background:var(--card);border:1px solid rgba(255,255,255,.22);box-shadow:var(--shadow)}.site-header{position:sticky;top:0;z-index:50;margin:0 0 10px}.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}.brand{display:flex;align-items:center;gap:12px}.brand span{display:flex;flex-direction:column}.brand strong{font-size:1.2rem}.brand small{color:var(--muted)}.site-nav{display:flex;gap:18px;flex-wrap:wrap}.site-nav a{font-weight:600}.nav-actions{display:flex;gap:10px}.icon-btn,.menu-toggle{border:none;background:#fff3;color:#fff;padding:10px 12px;border-radius:14px;cursor:pointer}.hero{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--bg),#172f8f 45%,#6b1ea8 100%);color:#fff;padding:72px 0 42px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}.pill,.badge{display:inline-flex;padding:8px 14px;border-radius:999px;background:#fff2;border:1px solid #fff3;font-size:.86rem}.hero h1,.inner-hero h1{font-size:clamp(2.2rem,4vw,4.2rem);line-height:1.05;margin:16px 0}.hero-search{display:flex;gap:12px;padding:12px;border-radius:20px;margin:26px 0}.hero-search input,.newsletter input,#site-search,.calc-fields input,.calc-fields select,.calc-fields textarea{width:100%;padding:14px 16px;border-radius:16px;border:1px solid #dbe3f4;background:#fff;color:#111}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:16px;font-weight:700;border:none;cursor:pointer;position:relative;overflow:hidden}.btn-primary{background:linear-gradient(135deg,#ff9900,#ff6a00);color:#fff}.btn-light{background:#fff;color:#0f1d43}.hero-actions,.card-actions,.stats,.demo-tabs,.filter-row{display:flex;flex-wrap:wrap;gap:12px}.stats div{background:#fff2;padding:14px 18px;border-radius:18px;min-width:96px}.hero-demo{padding:22px;border-radius:30px}.demo-tabs span{padding:10px 12px;border-radius:12px;background:#fff1}.demo-screen{font-size:4rem;text-align:right;padding:28px 18px;background:#fff;border-radius:24px;color:#111;margin:16px 0}.demo-keys{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.demo-keys button{padding:18px;border:none;border-radius:16px;background:#fff;box-shadow:0 8px 22px rgba(0,0,0,.08);font-size:1.1rem}.banner-strip{margin-top:-18px;padding-bottom:24px}.banner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.banner-grid .glass{padding:18px;text-align:center;border-radius:20px;animation:float 5s ease-in-out infinite}.home-section{padding:32px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:20px}.card-grid,.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.calc-card,.guide-card{padding:22px;border-radius:24px;display:grid;gap:12px;transition:transform .25s ease,box-shadow .25s ease}.calc-card:hover,.guide-card:hover{transform:translateY(-6px)}.card-icon{font-size:2rem;width:62px;height:62px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,#e8f2ff,#fff)}.inner-hero{padding:44px 0 18px;background:linear-gradient(120deg,#09163f,#1a2f83 60%,#5c2395);color:#fff}.breadcrumb{color:#d7ddff}.calc-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;padding:28px 0}.calc-panel,.content-side,.prose,.related-box{padding:24px;border-radius:24px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.calc-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:18px 0}.calc-fields .full{grid-column:1/-1}.calc-result,.result-grid{margin-top:18px}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.result-grid div{padding:16px;border-radius:18px;background:#fff}.result-grid span{display:block;color:#6b7692;font-size:.88rem}.result-grid strong{display:block;font-size:1.15rem;margin-top:6px}.prose-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;padding-bottom:32px}.prose p,.prose li{line-height:1.8;color:var(--muted)}.prose details{padding:12px 0;border-top:1px solid #dce5f6}.site-footer{background:#08163f;color:#fff;padding:42px 0 18px;margin-top:36px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:22px}.footer-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;border-top:1px solid #ffffff24;margin-top:28px;padding-top:16px}.search-modal{position:fixed;inset:0;background:rgba(3,7,20,.55);display:grid;place-items:center;z-index:100}.search-modal[hidden]{display:none!important}.search-box{width:min(760px,92vw);padding:22px;border-radius:28px}.search-results{display:grid;gap:10px;margin-top:14px;max-height:52vh;overflow:auto}.search-results a{display:flex;justify-content:space-between;padding:14px;border-radius:16px;background:#fff}.translate-panel{position:fixed;right:18px;bottom:92px;z-index:44;display:none}.translate-panel.show{display:block}.back-top{position:fixed;right:18px;bottom:20px;border:none;background:linear-gradient(135deg,#ff9900,#ff6a00);color:#fff;width:48px;height:48px;border-radius:50%;cursor:pointer;box-shadow:var(--shadow)}.floating{position:absolute;padding:14px 18px;border-radius:18px;background:#fff2;border:1px solid #fff2;animation:float 6s ease-in-out infinite}.floating.a{top:18%;right:10%}.floating.b{top:34%;right:4%}.floating.c{top:56%;right:12%}.ripple-dot{position:absolute;width:10px;height:10px;background:rgba(255,255,255,.55);border-radius:50%;transform:translate(-50%,-50%);animation:ripple .6s ease-out}.qr-preview{margin-top:18px;border-radius:18px;background:#fff;padding:12px;max-width:240px}.tiny-note{font-size:.85rem;color:#6b7692}.chip{padding:10px 14px;border-radius:999px;border:none;background:#e8eefc;cursor:pointer}.chip.active{background:linear-gradient(135deg,#ff9900,#ff6a00);color:#fff}@keyframes ripple{from{opacity:.8;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-50%) scale(18)}}@keyframes float{50%{transform:translateY(-10px)}}@media (max-width:1024px){.hero-grid,.calc-layout,.prose-grid,.footer-grid{grid-template-columns:1fr}.card-grid,.guide-grid,.banner-grid{grid-template-columns:repeat(2,1fr)}.site-nav{display:none}.site-nav.open{display:flex;position:absolute;left:4vw;right:4vw;top:74px;background:var(--card);padding:18px;border-radius:20px;flex-direction:column}.menu-toggle{display:inline-block}}@media (min-width:1025px){.menu-toggle{display:none}}@media (max-width:680px){.card-grid,.guide-grid,.banner-grid,.calc-fields{grid-template-columns:1fr}.hero-search,.panel-head,.section-head,.footer-bottom{flex-direction:column;align-items:stretch}}
.search-modal[hidden]{
    display:none !important;
}

.search-modal:not([hidden]){
    display:grid !important;
}