*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:#1a1a2e;line-height:1.6;background:#fff;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}.container{max-width:1100px;margin:0 auto;padding:0 32px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all .25s;border:none}.btn-lg{padding:14px 32px;font-size:16px;border-radius:12px}.btn-primary{background:linear-gradient(135deg,#409eff,#3b82f6);color:#fff;box-shadow:0 4px 14px #409eff4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #409eff66}.btn-outline{border:2px solid #d0d5dd;color:#344054;background:transparent}.btn-outline:hover{border-color:#409eff;color:#409eff}.btn-ghost{color:#606266;padding:8px 20px;border-radius:8px;font-weight:500}.btn-ghost:hover{background:#409eff14;color:#409eff}.btn-block{width:100%}.header{position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .3s;background:transparent}.header.scrolled{background:#fffffff2;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 1px 8px #0000000f}.header-inner{max-width:1200px;margin:0 auto;padding:0 32px;height:64px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px}.logo-icon{width:32px;height:32px;background:linear-gradient(135deg,#409eff,#3b82f6);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px}.logo-icon.sm{width:24px;height:24px;font-size:12px;border-radius:6px}.logo-text{font-size:18px;font-weight:700;color:#1a1a2e;letter-spacing:-.5px}.nav{display:flex;gap:4px}.nav a{padding:6px 16px;border-radius:8px;font-size:14px;font-weight:500;color:#606266;transition:all .2s}.nav a:hover{color:#409eff;background:#409eff14}.header-actions{display:flex;align-items:center;gap:8px}@media(max-width:768px){.nav{display:none}}.lang-switcher{position:relative}.lang-btn{padding:6px 14px;border-radius:8px;font-size:13px;font-weight:500;color:#606266;cursor:pointer;transition:all .2s;-webkit-user-select:none;user-select:none;display:flex;align-items:center;gap:4px}.lang-btn:hover{color:#409eff;background:#409eff14}.lang-dropdown{position:absolute;top:100%;right:0;margin-top:4px;background:#fff;border-radius:10px;box-shadow:0 8px 30px #0000001f;border:1px solid #eee;min-width:130px;z-index:1001;overflow:hidden}.lang-option{padding:10px 16px;font-size:13px;cursor:pointer;transition:background .15s;color:#606266}.lang-option:hover{background:#f5f7fa;color:#409eff}.lang-option.active{color:#409eff;font-weight:600}.hero{position:relative;padding:140px 32px 100px;text-align:center;overflow:hidden;background:linear-gradient(180deg,#f0f5ff,#fff)}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.3}.glow-1{width:500px;height:500px;background:#409eff;top:-120px;left:10%;animation:float 8s ease-in-out infinite}.glow-2{width:400px;height:400px;background:#38bdf8;bottom:-80px;right:10%;animation:float 8s ease-in-out infinite 2s}.glow-3{width:300px;height:300px;background:#22d3ee;top:50%;left:50%;transform:translate(-50%,-50%);animation:float 8s ease-in-out infinite 4s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-30px)}}.hero-content{position:relative;max-width:720px;margin:0 auto}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 18px;border-radius:20px;background:#409eff1a;color:#409eff;font-size:14px;font-weight:500;margin-bottom:24px}.hero h1{font-size:52px;font-weight:800;color:#1a1a2e;line-height:1.15;letter-spacing:-1.5px;margin-bottom:20px}.subtitle{font-size:18px;color:#5a5d6e;line-height:1.7;margin-bottom:36px}.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:32px}.hero-trust{font-size:14px;color:#86909c;display:flex;align-items:center;justify-content:center;gap:8px}.trust-dot{width:8px;height:8px;background:#22c55e;border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@media(max-width:640px){.hero h1{font-size:34px}.subtitle{font-size:15px}.hero{padding:120px 24px 60px}}.section-header{text-align:center;margin-bottom:56px}.section-header h2{font-size:32px;font-weight:700;color:#1a1a2e;margin-bottom:10px}.section-header p{font-size:16px;color:#86909c}.features{padding:80px 0;background:#fff}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.feature-card{padding:32px 24px;border-radius:16px;background:#fff;border:1px solid #f0f0f0;transition:all .3s}.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px #00000014;border-color:transparent}.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:28px}.feature-card h3{font-size:17px;font-weight:600;color:#1d2129;margin-bottom:10px}.feature-card p{font-size:14px;color:#86909c;line-height:1.6}@media(max-width:900px){.features-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:520px){.features-grid{grid-template-columns:1fr}}.stats{padding:60px 0;background:linear-gradient(135deg,#2563eb,#0ea5e9)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat{text-align:center;padding:24px}.stat-value{display:block;font-size:36px;font-weight:800;color:#fff;letter-spacing:-1px}.stat-label{display:block;font-size:14px;color:#ffffffb3;margin-top:6px}@media(max-width:640px){.stats-grid{grid-template-columns:repeat(2,1fr)}}.pricing{padding:80px 0;background:#fafbfc}.pricing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;max-width:760px;margin:0 auto}.price-card{background:#fff;border:1px solid #e8e8e8;border-radius:20px;padding:36px 32px;position:relative;transition:all .3s}.price-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px #00000014}.price-card.featured{border-color:#409eff;box-shadow:0 8px 30px #409eff26}.price-badge{position:absolute;top:-12px;right:20px;background:linear-gradient(135deg,#409eff,#3b82f6);color:#fff;padding:4px 16px;border-radius:12px;font-size:12px;font-weight:600}.price-tag{font-size:14px;font-weight:600;color:#86909c;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}.price-amount{margin-bottom:8px;display:flex;align-items:baseline;gap:2px}.price-amount .currency{font-size:24px;font-weight:600;color:#1a1a2e}.price-amount .number{font-size:48px;font-weight:800;color:#1a1a2e;letter-spacing:-2px}.price-amount .unit{font-size:16px;color:#86909c;margin-left:4px}.price-desc{font-size:14px;color:#86909c;margin-bottom:24px}.price-features{list-style:none;margin-bottom:28px}.price-features li{padding:6px 0;font-size:14px;color:#4a4a5a}@media(max-width:640px){.pricing-grid{grid-template-columns:1fr}}.faq{padding:80px 0;background:#fff}.faq-list{max-width:700px;margin:0 auto}.faq-item{border:1px solid #eee;border-radius:12px;margin-bottom:12px;overflow:hidden;transition:all .3s}.faq-item[open]{border-color:#bdd7ff;background:#f5f9ff}.faq-item summary{padding:18px 24px;font-size:15px;font-weight:600;color:#1d2129;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";font-size:20px;color:#86909c;transition:transform .2s}.faq-item[open] summary:after{content:"−"}.faq-item p{padding:0 24px 18px;font-size:14px;color:#5a5d6e;line-height:1.7}.cta{padding:80px 0;background:#fafbfc}.cta-box{text-align:center;padding:60px 40px;border-radius:24px;background:linear-gradient(135deg,#f0f5ff,#e8f4ff);border:1px solid #d4e8ff}.cta-box h2{font-size:28px;font-weight:700;color:#1a1a2e;margin-bottom:12px}.cta-box p{font-size:16px;color:#5a5d6e;margin-bottom:28px}.footer{background:#1a1a2e;color:#a0a3b1;padding:56px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}.footer-brand p{font-size:14px;line-height:1.6;color:#8b8fa3;margin-top:12px}.footer-logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:16px;font-weight:700}.footer-links h4{color:#fff;font-size:13px;font-weight:600;margin-bottom:16px;text-transform:uppercase;letter-spacing:.5px}.footer-links a{display:block;color:#8b8fa3;font-size:14px;padding:4px 0;transition:color .2s}.footer-links a:hover{color:#409eff}.footer-bottom{padding:24px 0;text-align:center;font-size:13px;color:#5a5d6e}@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}