:root{--ink:#10233f;--muted:#4b5f79;--blue:#0759d5;--blue-dark:#063f9a;--sky:#eaf4ff;--soft:#f7faff;--line:#cddbeb;--white:#fff;--green:#087f5b;--orange:#9a4d00;--shadow:0 12px 34px rgba(20,53,92,.11)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{min-width:320px;margin:0;color:var(--ink);background:var(--white);font-family:"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:17px;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:4px solid #ffbf47;outline-offset:3px}
.skip-link{position:fixed;top:10px;left:10px;z-index:9999;padding:11px 16px;color:#fff;background:#111;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.page{position:relative;overflow:hidden}
.fluid-bg{position:absolute;inset:0 0 auto;height:820px;z-index:-1;background:linear-gradient(135deg,#f2f8ff 0%,#fff 46%,#edf7ff 100%)}
.fluid-bg:before,.fluid-bg:after{content:"";position:absolute;border-radius:50%;opacity:.62}
.fluid-bg:before{width:430px;height:430px;top:-210px;right:-120px;background:#d7e9ff}
.fluid-bg:after{width:300px;height:300px;top:240px;left:-210px;background:#dff6ff}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.nav-wrap{position:sticky;top:0;z-index:100;border-bottom:2px solid var(--line);background:rgba(255,255,255,.96)}
.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:800;white-space:nowrap}
.logo{width:44px;height:44px;display:grid;place-items:center;border-radius:10px;color:#fff;background:var(--blue);font-weight:900}
.nav-links{display:flex;align-items:center;gap:30px;color:#243c5d;font-size:16px;font-weight:700}
.nav-links a{padding:8px 2px;border-bottom:3px solid transparent}
.nav-links a:hover,.nav-links a.active{color:var(--blue);border-bottom-color:var(--blue)}
.nav-actions{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 24px;border:2px solid transparent;border-radius:9px;font-weight:800;cursor:pointer}
.btn-primary{color:#fff;background:var(--blue)}
.btn-primary:hover{background:var(--blue-dark)}
.btn-ghost{color:var(--blue-dark);border-color:var(--blue);background:#fff}
.btn-ghost:hover{background:var(--sky)}
.menu-btn{display:none;width:48px;height:48px;border:2px solid var(--blue);border-radius:8px;color:var(--blue);background:#fff;font-size:22px}
.hero{min-height:650px;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:64px;padding:82px 0 62px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 13px;border:1px solid #9ec5f4;border-radius:6px;color:var(--blue-dark);background:#edf6ff;font-size:14px;font-weight:800}
.pulse{width:9px;height:9px;border-radius:50%;background:var(--green)}
h1{margin:22px 0;font-size:clamp(44px,6vw,72px);line-height:1.12;letter-spacing:-.035em}
.gradient-text{color:var(--blue)}
.lead{max-width:670px;color:var(--muted);font-size:19px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:31px 0 27px}
.platforms{display:flex;flex-wrap:wrap;gap:9px;color:#29435f;font-size:14px}
.platforms span{padding:7px 11px;border:1px solid #b9cce1;border-radius:6px;background:#fff}
.visual{position:relative}
.visual-card{padding:22px;border:2px solid #aec7e6;border-radius:20px;background:#fff;box-shadow:var(--shadow)}
.connection{position:absolute;left:-24px;bottom:30px;padding:13px 16px;border:2px solid #8fcdb9;border-radius:9px;background:#fff;box-shadow:var(--shadow);font-size:14px;font-weight:700}
.connection b{color:var(--green)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);border:2px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow);overflow:hidden}
.stat{padding:27px 16px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border:0}.stat strong{display:block;color:var(--blue);font-size:27px}.stat span{color:var(--muted);font-size:14px}
section{padding:92px 0}
section:nth-of-type(even){background:var(--soft)}
.section-head{max-width:740px;margin:0 auto 48px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.kicker{color:var(--blue);font-size:14px;font-weight:900;letter-spacing:.1em}
h2{margin:11px 0 15px;font-size:clamp(32px,4vw,48px);line-height:1.2;letter-spacing:-.025em}
.section-head p,.muted{color:var(--muted)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.feature{min-height:245px;padding:34px;border:2px solid var(--line);border-radius:14px;background:#fff}
.feature:hover{border-color:var(--blue)}
.icon{width:52px;height:52px;display:grid;place-items:center;margin-bottom:23px;border:2px solid #a8c7ed;border-radius:9px;color:var(--blue);background:#eef6ff;font-size:24px}
.feature h3{margin:0 0 9px;font-size:23px}.feature p{color:var(--muted)}
.split{display:grid;grid-template-columns:.92fr 1.08fr;align-items:center;gap:76px}
.art-panel{padding:34px;border:2px solid var(--line);border-radius:18px;background:#fff}
.art-panel img{max-height:480px;margin:auto}
.check-list{display:grid;gap:17px;margin:28px 0}
.check{display:flex;gap:13px;align-items:flex-start}
.check i{display:grid;place-items:center;flex:0 0 26px;height:26px;border-radius:50%;color:#fff;background:var(--green);font-style:normal;font-weight:900;font-size:13px}
.scenarios,.reviews,.articles,.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{padding:29px;border:2px solid var(--line);border-radius:14px;background:#fff}
.card h3{margin:13px 0 9px;font-size:21px}.card p{color:var(--muted)}
.persona{display:inline-flex;padding:5px 10px;border-radius:5px;color:var(--blue-dark);background:#e7f2ff;font-size:13px;font-weight:850}
.quote{margin:18px 0 22px;color:var(--ink)!important}
.person{display:flex;align-items:center;gap:12px}.avatar{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;color:#fff;background:var(--blue);font-weight:900}.person small{display:block;color:var(--muted)}
.stars{color:#9b5600;letter-spacing:2px}
.article{display:flex;flex-direction:column;min-height:270px}.article .meta{color:var(--blue-dark);font-size:13px;font-weight:800}.article a{margin-top:auto;color:var(--blue);font-weight:850;text-decoration:underline}.article a:hover{color:var(--blue-dark)}
.price{position:relative}.price.popular{border-color:var(--blue);box-shadow:var(--shadow)}
.badge{position:absolute;top:17px;right:17px;padding:5px 9px;border-radius:5px;color:#fff;background:var(--blue);font-size:12px;font-weight:900}
.price-name{font-weight:850}.amount{margin:16px 0 3px;font-size:42px;font-weight:900;letter-spacing:-.04em}.amount small{font-size:15px;color:var(--muted);font-weight:600}
.save{min-height:28px;color:var(--green);font-size:14px;font-weight:800}.price ul{display:grid;gap:10px;margin:22px 0 26px;padding:0;list-style:none;color:#314a67;font-size:15px}.price .btn{width:100%}
.faq{max-width:900px;margin:auto}.faq-item{border-bottom:2px solid var(--line)}.faq-item button{width:100%;display:flex;justify-content:space-between;gap:28px;padding:24px 4px;border:0;color:var(--ink);background:transparent;text-align:left;font-size:18px;font-weight:800;cursor:pointer}.faq-item button:hover{color:var(--blue)}.faq-item button span:last-child{color:var(--blue)}.faq-answer{display:none;padding:0 48px 23px 4px;color:var(--muted)}.faq-item.open .faq-answer{display:block}.faq-item.open button span:last-child{transform:rotate(45deg)}
.cta{padding:62px;border:2px solid #8eb8ea;border-radius:16px;background:#eaf4ff;text-align:center}.cta p{max-width:660px;margin:15px auto 26px;color:#405875}
footer{padding:72px 0 32px;border-top:3px solid var(--blue);background:#10233f;color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:42px}.footer-brand p{max-width:300px;margin-top:17px;color:#cbd7e5}.footer-col h4{margin:0 0 15px}.footer-col a{display:block;margin:9px 0;color:#d9e3ee;font-size:15px;text-decoration:underline;text-decoration-color:transparent}.footer-col a:hover{text-decoration-color:currentColor}.copyright{display:flex;justify-content:space-between;gap:20px;margin-top:52px;padding-top:24px;border-top:1px solid #526982;color:#c5d2df;font-size:14px}
.subhero{padding:88px 0 54px;text-align:center}.subhero h1{font-size:clamp(41px,5vw,64px)}.subhero .lead{margin:auto}
.download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.download-card{display:flex;flex-direction:column;min-height:280px}.download-card .btn{margin-top:auto}
.notice{margin-top:26px;padding:18px 21px;border:2px solid #d6a15b;border-radius:8px;color:#663400;background:#fff7e8;font-size:15px}
.help-layout{display:grid;grid-template-columns:270px 1fr;gap:42px;align-items:start}.help-side{position:sticky;top:100px;padding:20px;border:2px solid var(--line);border-radius:12px;background:#fff}.help-side a{display:block;padding:10px 12px;border-radius:6px;color:#304a68}.help-side a:hover{color:var(--blue);background:var(--sky);text-decoration:underline}.help-content{display:grid;gap:20px}.help-block{scroll-margin-top:105px}.help-block h2{font-size:28px}.help-block ol,.help-block ul{margin:15px 0 0 22px;color:var(--muted)}.help-block li{margin:7px 0}
.search{display:flex;max-width:650px;margin:28px auto 0;padding:7px;border:2px solid #9cb6d4;border-radius:10px;background:#fff}.search input{flex:1;min-width:0;padding:0 15px;border:0;outline:0;color:var(--ink);background:transparent}
@media(max-width:900px){.nav-links{position:absolute;display:none;top:78px;left:20px;right:20px;flex-direction:column;align-items:stretch;padding:18px;border:2px solid var(--line);border-radius:10px;background:#fff}.nav-links.open{display:flex}.nav-actions .btn{display:none}.menu-btn{display:block}.hero,.split{grid-template-columns:1fr}.hero{padding-top:62px}.visual{max-width:680px}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2n){border-right:0}.stat:last-child{grid-column:1/-1}.scenarios,.reviews,.articles,.pricing,.download-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.help-layout{grid-template-columns:1fr}.help-side{position:static}}
@media(max-width:620px){body{font-size:16px}.container{width:min(100% - 28px,1180px)}.hero{min-height:auto;padding:55px 0}.hero-actions .btn{width:100%}.connection{position:static;margin-top:12px}.visual-card{padding:10px}.stats,.feature-grid,.scenarios,.reviews,.articles,.pricing,.download-grid,.footer-grid{grid-template-columns:1fr}.stat,.stat:nth-child(2n){border-right:0;border-bottom:1px solid var(--line)}.stat:last-child{grid-column:auto}.split{gap:38px}section{padding:72px 0}.cta{padding:42px 20px}.copyright{flex-direction:column}.subhero{padding:60px 0 34px}.search{flex-direction:column;gap:8px}.search input{min-height:48px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
@media(forced-colors:active){.btn,.logo,.card,.feature,.stats{border:2px solid CanvasText}}