:root{--ink:#152138;--muted:#627087;--line:#dce3ec;--paper:#f7f9fc;--white:#fff;--blue:#155eef;--blue2:#0b46bd;--cyan:#12b5cb;--green:#14866d;--shadow:0 18px 50px rgba(21,33,56,.10);--radius:18px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--white);font-family:"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.notice{background:#0e1d36;color:#dbe8ff;text-align:center;padding:8px 16px;font-size:13px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav{height:70px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;margin-right:auto}
.brand img{width:38px;height:38px;border-radius:10px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:650}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--blue)}
.nav-cta,.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:10px;padding:11px 18px;font-weight:750;border:1px solid transparent;transition:.2s}
.nav-cta,.btn-primary{background:var(--blue);color:#fff}
.nav-cta:hover,.btn-primary:hover{background:var(--blue2);transform:translateY(-1px)}
.btn-secondary{background:#fff;border-color:#b8c5d8}
.hero{position:relative;overflow:hidden;background:linear-gradient(140deg,#f1f6ff 0,#fff 50%,#ebfbfb 100%);padding:76px 0 62px}
.hero:before{content:"";position:absolute;width:440px;height:440px;border-radius:50%;background:rgba(21,94,239,.08);right:-150px;top:-230px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:58px}
.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--blue);background:#e6efff;border:1px solid #ccddff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:800}
h1{font-size:clamp(38px,5.2vw,68px);line-height:1.08;letter-spacing:-.045em;margin:18px 0}
h1 span{color:var(--blue)}
.lead{font-size:18px;color:var(--muted);max-width:670px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
.trust-row{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;font-weight:700;color:#34445c}
.trust-row span:before{content:"✓";color:var(--green);margin-right:6px}
.hero-visual{position:relative}
.hero-visual>img{display:block;width:100%;aspect-ratio:44/35;object-fit:cover;border-radius:24px;border:8px solid #fff;box-shadow:var(--shadow)}
.float-card{position:absolute;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:12px 16px;font-weight:800}
.float-card.one{left:-30px;bottom:30px}.float-card.two{right:-18px;top:24px}
.search-strip{margin-top:-24px;position:relative;z-index:2}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.quick-item{padding:20px 24px;border-right:1px solid var(--line)}
.quick-item:last-child{border:0}.quick-item small{display:block;color:var(--muted)}.quick-item strong{font-size:17px}
section{padding:74px 0}
.soft{background:var(--paper)}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
.section-head h2,.page-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.15;letter-spacing:-.035em;margin:0}
.section-head p{max-width:600px;margin:0;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s}
.card:hover{border-color:#9fb9ea;transform:translateY(-3px);box-shadow:0 12px 30px rgba(21,33,56,.07)}
.card .num,.icon{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:#e7efff;color:var(--blue);font-weight:900;margin-bottom:16px}
.card h3{margin:0 0 8px;font-size:19px}.card p{margin:0;color:var(--muted);font-size:14px}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.topic{padding:24px;border-radius:16px;background:#10213d;color:#fff;min-height:170px;display:flex;flex-direction:column}
.topic:nth-child(2){background:#123b67}.topic:nth-child(3){background:#0e535f}
.topic p{color:#cad6e8;margin:4px 0 18px}.topic b{margin-top:auto;color:#9fc3ff}
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.feature-list{display:grid;gap:14px}
.feature-row{border-left:3px solid var(--blue);padding:12px 0 12px 18px}
.feature-row h3{margin:0}.feature-row p{margin:3px 0;color:var(--muted)}
.logo-panel{text-align:center;padding:45px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(150deg,#fff,#edf4ff)}
.logo-panel img{width:220px;height:220px;border-radius:48px;box-shadow:var(--shadow)}
.platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.platform{border:1px solid var(--line);border-radius:16px;padding:22px;background:#fff}
.platform b{display:block;font-size:18px}.platform small{color:var(--muted)}
.faq{display:grid;gap:12px}
details{border:1px solid var(--line);border-radius:12px;padding:17px 20px;background:#fff}
summary{cursor:pointer;font-weight:800}details p{color:var(--muted);margin:12px 0 0}
.cta{padding:46px;border-radius:24px;background:linear-gradient(125deg,#155eef,#0b377f);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta h2{font-size:32px;margin:0}.cta p{margin:5px 0 0;color:#d5e3ff}.cta .btn{background:#fff;color:var(--blue);white-space:nowrap}
.page-hero{padding:64px 0 48px;background:linear-gradient(135deg,#eef4ff,#fff)}
.page-hero p{max-width:760px;color:var(--muted);font-size:18px}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:16px}
.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.data-table th,.data-table td{text-align:left;padding:16px;border-bottom:1px solid var(--line)}
.data-table th{background:#edf3fc;font-size:13px}.data-table tr:last-child td{border:0}
.steps{counter-reset:step;display:grid;gap:18px}
.step{counter-increment:step;position:relative;padding:22px 22px 22px 76px;border:1px solid var(--line);border-radius:16px;background:#fff}
.step:before{content:counter(step);position:absolute;left:20px;top:22px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--blue);color:#fff;font-weight:900}
.step h3{margin:0 0 5px}.step p{margin:0;color:var(--muted)}
.callout{border:1px solid #b7d1ff;background:#eef5ff;border-radius:14px;padding:20px;color:#24446f}
footer{background:#0c172b;color:#cbd4e3;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:40px}
footer h3{color:#fff;margin-top:0}footer a{display:block;margin:8px 0;color:#cbd4e3;font-size:14px}
.disclaimer{font-size:13px;color:#8f9db2;max-width:460px}
.copyright{border-top:1px solid #27344a;margin-top:34px;padding-top:22px;font-size:13px;color:#8290a5;display:flex;justify-content:space-between;gap:20px}
@media(max-width:900px){.nav-links{display:none}.hero-grid,.split{grid-template-columns:1fr}.hero-visual{max-width:650px}.cards,.platforms{grid-template-columns:repeat(2,1fr)}.topic-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0;border-bottom:1px solid var(--line)}}
@media(max-width:580px){.container{width:min(100% - 28px,1160px)}.hero{padding-top:50px}.cards,.platforms,.footer-grid{grid-template-columns:1fr}.section-head,.cta{align-items:flex-start;flex-direction:column}section{padding:56px 0}.float-card{display:none}.copyright{flex-direction:column}.data-table{font-size:13px}.data-table th,.data-table td{padding:11px 8px}}