:root{--bg: #f6f8fc;--panel: #ffffff;--panel-soft: #edf4ff;--text: #101828;--muted: #667085;--line: #e3e9f3;--blue: #4169d8;--blue-strong: #2555c7;--green: #58c98b;--shadow: 0 18px 46px rgba(31, 52, 92, .1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:var(--bg);font-family:Inter,PingFang SC,Microsoft YaHei,Noto Sans SC,Arial,sans-serif;letter-spacing:0}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}main,.footer{width:min(1200px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:20;width:100%;padding-inline:max(20px,calc((100vw - 1200px)/2));min-height:74px;display:flex;align-items:center;gap:26px;background:#f6f8fcdb;backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:10px;font-size:30px;font-weight:900;white-space:nowrap}.brand img{width:40px;height:40px}.main-nav{margin-left:auto;display:flex;align-items:center;gap:6px}.main-nav a{padding:10px 14px;border-radius:8px;color:#41506a;font-size:15px}.main-nav a:hover{color:var(--blue-strong);background:#e8efff}.mobile-auth{display:none}.header-actions{display:flex;align-items:center;gap:10px}.ghost-link,.primary-link{min-height:40px;padding:0 18px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.ghost-link{color:#40506a}.primary-link{color:#fff;background:var(--blue);box-shadow:0 12px 24px #4169d838}.menu-button{display:none;width:42px;height:42px;margin-left:auto;border:0;border-radius:8px;color:#65758b;background:#e7edf6}.hero-section{padding:28px 0 58px;display:grid;grid-template-columns:minmax(0,.98fr) minmax(420px,1.02fr);align-items:center;gap:clamp(30px,5vw,66px)}.eyebrow{display:inline-flex;margin-bottom:14px;color:var(--blue);font-size:12px;font-weight:850;letter-spacing:.12em}h1,h2,h3,p{margin-top:0}h1{max-width:760px;margin-bottom:22px;font-size:clamp(42px,5.4vw,72px);line-height:1.06;font-weight:900;letter-spacing:0}h2{margin-bottom:14px;font-size:clamp(28px,3.4vw,44px);line-height:1.18;font-weight:850;letter-spacing:0}h3{margin-bottom:10px;font-size:22px;line-height:1.28}.hero-copy p,.section-head p,.section-copy,.feature-card p,.use-case-card p,.support-section p{color:var(--muted);line-height:1.78}.hero-copy p{max-width:720px;font-size:17px}.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px}.button{min-height:46px;padding:0 22px;border-radius:8px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800}.button-primary{color:#fff;background:var(--blue);box-shadow:0 14px 28px #4169d83d}.button-soft{color:var(--blue-strong);background:#e8efff}.button-light{color:var(--blue-strong);background:#fff}.trust-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}.trust-row span{min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;display:inline-flex;align-items:center;gap:8px;color:#344054;background:#ffffffb8;font-size:14px;font-weight:750}.trust-row i{color:var(--green)}.hero-visual{position:relative;padding:18px;border:1px solid var(--line);border-radius:8px;background:linear-gradient(145deg,#edf4ffdb,#ffffffeb),url(../images/hero-g-bg.png) center/cover;box-shadow:var(--shadow);overflow:hidden}.hero-carousel{position:relative;width:100%;aspect-ratio:16 / 10;overflow:hidden;border-radius:8px;box-shadow:0 16px 34px #1f345c1f;background:#e8efff}.hero-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.015);transition:opacity .55s ease,transform .7s ease}.hero-slide.active{opacity:1;transform:scale(1)}.carousel-dots{position:absolute;left:50%;bottom:14px;z-index:2;padding:7px 9px;border-radius:999px;display:flex;gap:7px;background:#10182861;transform:translate(-50%);backdrop-filter:blur(8px)}.carousel-dots button{width:8px;height:8px;padding:0;border:0;border-radius:999px;background:#ffffff9e;cursor:pointer}.carousel-dots button.active{width:20px;background:#fff}.floating-card{position:absolute;max-width:272px;padding:16px 18px;border:1px solid rgba(227,233,243,.86);border-radius:8px;display:flex;align-items:center;gap:13px;background:#ffffffe6;box-shadow:0 16px 32px #1f345c24;backdrop-filter:blur(10px)}.floating-card i{width:38px;height:38px;border-radius:8px;display:grid;place-items:center;color:#fff;background:var(--blue)}.floating-card strong,.floating-card span{display:block}.floating-card span{margin-top:4px;color:var(--muted);font-size:13px}.card-top{top:44px;left:44px}.card-bottom{right:36px;bottom:44px}.section{padding:82px 0}.section-head{max-width:770px;margin:0 auto 36px;text-align:center}.service-grid,.pricing-grid,.use-case-grid{display:grid;gap:24px}.service-grid,.pricing-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.feature-card,.download-panel,.price-card,.use-case-card{border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.feature-card{padding:28px}.feature-card i{width:48px;height:48px;margin-bottom:22px;border-radius:8px;display:grid;place-items:center;color:var(--blue);background:#e8efff;font-size:20px}.feature-card p{margin-bottom:0}.soft-band{width:100vw;margin-left:calc(50% - 50vw);padding-inline:max(20px,calc((100vw - 1200px)/2));background:#edf4ff}.use-case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.use-case-card{overflow:hidden}.use-case-card img{width:100%;aspect-ratio:16 / 9;object-fit:cover}.use-case-card div{padding:24px}.use-case-card span{display:block;margin-bottom:10px;color:var(--blue);font-size:11px;font-weight:850;letter-spacing:.08em}.use-case-card p{margin-bottom:0}.split-section{display:grid;grid-template-columns:minmax(0,.85fr) minmax(360px,1.15fr);align-items:center;gap:36px}.section-copy{max-width:520px}.download-panel{overflow:hidden}.download-row{min-height:74px;padding:0 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px}.download-row:last-child{border-bottom:0}.download-row span{display:flex;align-items:center;gap:14px;font-weight:800}.download-row i{width:30px;color:#5c6676;font-size:24px}.download-row b{min-width:96px;padding:10px 14px;border-radius:7px;color:#fff;background:var(--blue);text-align:center;font-size:14px}.price-card{position:relative;padding:28px 24px}.price-card.featured{border-color:#8da9ff}.badge{position:absolute;top:18px;right:18px;padding:7px 12px;border-radius:999px;color:var(--blue-strong);background:#e8efff;font-size:12px;font-weight:800}.price{margin:18px 0 24px;font-size:40px;font-weight:900}.price span{margin-left:4px;color:var(--muted);font-size:16px;font-weight:500}.price-card .button{width:100%}.price-card ul{margin:24px 0 0;padding:0;list-style:none}.price-card li{position:relative;padding:13px 0 13px 30px;border-bottom:1px solid var(--line);color:#253244}.price-card li:before{content:"";position:absolute;top:14px;left:0;color:var(--green);font-family:"Font Awesome 5 Free";font-weight:900}.support-section{width:min(1200px,calc(100% - 40px));margin:20px auto 56px;padding:42px;border-radius:8px;color:#fff;background:linear-gradient(135deg,#1d4092f2,#4169d8d1),url(../images/demos.png) center/cover;display:flex;align-items:center;justify-content:space-between;gap:24px}.support-section .eyebrow,.support-section p{color:#ffffffd6}.support-section h2{margin-bottom:10px}.support-section p{max-width:760px;margin-bottom:0}.footer{padding:24px 0 34px;display:flex;align-items:center;justify-content:space-between;gap:18px;color:var(--muted);font-size:14px}.footer div{display:flex;gap:18px}@media(max-width:1020px){.hero-section,.split-section,.service-grid,.pricing-grid,.use-case-grid{grid-template-columns:1fr}.hero-section{min-height:auto}}@media(max-width:760px){main,.footer,.support-section{width:min(100% - 28px,1200px)}.site-header{padding-inline:14px}.menu-button{display:inline-grid;place-items:center}.main-nav,.header-actions{display:none}.site-header.nav-open .main-nav{position:absolute;top:68px;left:14px;right:14px;padding:12px;border:1px solid var(--line);border-radius:8px;display:grid;gap:4px;background:#fff;box-shadow:var(--shadow)}.site-header.nav-open .main-nav .mobile-auth{display:flex;justify-content:center;margin-top:4px;border:1px solid var(--line);font-weight:800}.site-header.nav-open .main-nav .mobile-auth-primary{color:#fff;border-color:var(--blue);background:var(--blue)}h1{font-size:40px}.hero-section{padding-top:24px;padding-bottom:44px}.floating-card{position:static;max-width:none;margin-top:12px}.hero-visual{padding:14px}.soft-band{padding-inline:22px}.pricing-grid{gap:14px}.price-card{padding:18px}.price-card h3{margin-bottom:4px;font-size:20px}.price{margin:8px 0 14px;font-size:32px}.price span{font-size:14px}.price-card .button{min-height:40px}.price-card ul{margin-top:16px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.price-card li{min-height:34px;padding:7px 8px 7px 26px;border:1px solid var(--line);border-radius:7px;background:#f8fbff;font-size:13px;line-height:1.35}.price-card li:before{top:8px;left:8px;font-size:13px}.badge{top:14px;right:14px;padding:5px 10px}.support-section,.footer{align-items:flex-start;flex-direction:column}}@media(max-width:520px){.brand{font-size:25px}.section{padding:62px 0}.soft-band{padding-inline:18px}.hero-actions .button,.download-row b{width:100%}.download-row{align-items:flex-start;flex-direction:column;padding:18px}.feature-card,.support-section{padding:22px}}