:root{--p:#2563eb;--p2:#7c3aed;--grad:linear-gradient(135deg,#2563eb 0%,#7c3aed 100%);--grad2:linear-gradient(135deg,#1d4ed8 0%,#6d28d9 100%);--or:#ff7a00;--dk:#0f172a;--tx:#1e293b;--mut:#64748b;--bg:#f5f7fc;--card:#ffffff;--line:#e2e8f0;--sh:0 10px 30px rgba(15,23,42,.08);--sh2:0 20px 50px rgba(37,99,235,.16);--r:16px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--tx);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--p);text-decoration:none;transition:color .2s,background .2s,transform .2s,box-shadow .2s}
a:hover{color:var(--p2)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:0}
input{font-family:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.hide{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;background:var(--p);color:#fff;padding:8px 16px;z-index:999}
.skip:focus{left:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:50px;font-size:16px;font-weight:600;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s;text-align:center}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--sh2)}
.btn-grad:hover{background:var(--grad2);color:#fff;transform:translateY(-2px);box-shadow:0 24px 60px rgba(37,99,235,.28)}
.btn-ghost{background:transparent;color:var(--p);border:2px solid var(--p)}
.btn-ghost:hover{background:var(--p);color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--p);box-shadow:0 10px 30px rgba(0,0,0,.18)}
.btn-white:hover{background:#eff6ff;color:var(--p2);transform:translateY(-2px)}
.btn-big{padding:16px 40px;font-size:17px}
.sec{padding:84px 0}
.sec-alt{background:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 52px}
.sec-tag{display:inline-block;padding:6px 18px;border-radius:50px;background:rgba(37,99,235,.08);color:var(--p);font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:14px}
.sec-title{font-size:34px;line-height:1.35;color:var(--dk);margin-bottom:14px;font-weight:800}
.sec-sub{font-size:16px;color:var(--mut)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
header.nav{position:fixed;top:0;left:0;right:0;z-index:900;background:rgba(15,23,42,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background .3s,box-shadow .3s}
html.js header.nav{background:transparent}
html.js header.nav.scrolled{background:rgba(15,23,42,.88);box-shadow:0 6px 24px rgba(15,23,42,.25)}
.nav-in{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:70px;position:relative}
.nav-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:800}
.nav-logo img{width:36px;height:36px;border-radius:8px}
.nav-logo span em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu>li{position:relative}
.nav-menu>li>a,.drop-label{display:flex;align-items:center;gap:6px;padding:10px 16px;color:rgba(255,255,255,.85);font-size:15px;font-weight:600;border-radius:10px;cursor:pointer;white-space:nowrap}
.nav-menu>li>a:hover,.drop-label:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-menu>li.cta>a{background:var(--grad);color:#fff;padding:10px 24px;border-radius:50px;box-shadow:var(--sh2)}
.nav-menu>li.cta>a:hover{background:var(--grad2);color:#fff;transform:translateY(-1px)}
.drop-toggle{position:absolute;opacity:0;pointer-events:none}
.drop-label i{font-style:normal;transition:transform .25s;display:inline-block}
.has-drop:hover .drop-label i,.drop-toggle:checked~.drop-label i{transform:rotate(180deg)}
.drop{position:absolute;top:calc(100% + 8px);left:0;min-width:208px;background:#fff;border-radius:14px;box-shadow:0 16px 44px rgba(15,23,42,.16);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,transform .25s,visibility .25s;z-index:950}
.has-drop:hover .drop,.drop-toggle:checked~.drop{opacity:1;visibility:visible;transform:translateY(0)}
.drop li a{display:block;padding:10px 16px;border-radius:9px;color:var(--tx);font-size:14px;font-weight:500}
.drop li a:hover{background:rgba(37,99,235,.08);color:var(--p)}
.burger{display:none;flex-direction:column;gap:5px;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;cursor:pointer;background:rgba(255,255,255,.12)}
.burger i{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .25s,opacity .25s}
#nav-toggle{position:absolute;opacity:0;pointer-events:none}
.hero{position:relative;padding:170px 0 96px;background:radial-gradient(1200px 600px at 80% -10%,rgba(124,58,237,.35) 0%,transparent 60%),radial-gradient(900px 500px at 10% 20%,rgba(37,99,235,.3) 0%,transparent 55%),linear-gradient(160deg,#0b1226 0%,#101b3c 55%,#1a1140 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:26px 26px;opacity:.5;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:7px 18px;border-radius:50px;font-size:13px;font-weight:600;color:#c7d2fe;margin-bottom:22px}
.hero-tag b{color:#fff}
.hero h1{font-size:46px;line-height:1.25;font-weight:900;margin-bottom:18px}
.hero p.lead{font-size:17px;color:#cbd5e1;max-width:540px;margin-bottom:30px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hero-stats .hs b{display:block;font-size:28px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats .hs span{font-size:13px;color:#94a3b8}
.demo{background:#fff;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.45);overflow:hidden;color:var(--tx);max-width:560px;width:100%}
.demo-top{display:flex;align-items:center;gap:12px;padding:12px 18px;background:#f1f5f9;border-bottom:1px solid var(--line)}
.demo-dots{display:flex;gap:6px}
.demo-dots i{width:11px;height:11px;border-radius:50%}
.demo-dots i:nth-child(1){background:#f87171}.demo-dots i:nth-child(2){background:#fbbf24}.demo-dots i:nth-child(3){background:#34d399}
.demo-title{flex:1;font-size:13px;font-weight:700;color:#475569;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.demo-status{font-size:12px;font-weight:700;padding:4px 12px;border-radius:50px;background:rgba(148,163,184,.2);color:#64748b}
#demo-conn:checked~.demo .demo-status{background:rgba(52,211,153,.15);color:#059669}
.demo-screen{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#1e3a8a 0%,#4c1d95 50%,#0f172a 100%);overflow:hidden}
.demo-wall{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;padding:20px;opacity:1;transition:opacity .3s,filter .3s}
.demo-icon{width:86px;display:flex;flex-direction:column;align-items:center;gap:8px;color:#e0e7ff;font-size:12px;font-weight:600}
.demo-icon .ic{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900;color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.35)}
.ic-a{background:linear-gradient(135deg,#3b82f6,#2563eb)}
.ic-b{background:linear-gradient(135deg,#f59e0b,#f97316)}
.ic-c{background:linear-gradient(135deg,#10b981,#059669)}
.ic-d{background:linear-gradient(135deg,#8b5cf6,#7c3aed)}
.demo-conn-off{position:absolute;inset:0;background:rgba(15,23,42,.78);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:#fff;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
#demo-conn:not(:checked)~.demo .demo-wall{opacity:.25;filter:blur(4px)}
#demo-conn:not(:checked)~.demo .demo-conn-off{opacity:1;visibility:visible}
.demo-conn-off p{font-size:15px;font-weight:700}
.demo-conn-off label{background:var(--grad);color:#fff;padding:11px 30px;border-radius:50px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:var(--sh2)}
.demo-conn-off label:active{transform:scale(.96)}
.demo-bar{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#fff;flex-wrap:wrap}
.demo-stat{flex:1;min-width:76px;text-align:center;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:8px 4px}
.demo-stat b{display:block;font-size:16px;font-weight:900;color:var(--p)}
.demo-stat span{font-size:11px;color:var(--mut)}
.demo-btn{background:var(--grad);color:#fff;border-radius:10px;padding:9px 18px;font-size:13px;font-weight:700;cursor:pointer}
.demo-btn:active{transform:scale(.96)}
.demo-qa{display:flex;gap:6px;background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:4px}
.demo-qa label{padding:7px 14px;border-radius:8px;font-size:13px;font-weight:600;color:var(--mut);cursor:pointer;transition:all .2s;white-space:nowrap}
#qa-sd:checked~.demo label[for=qa-sd],#qa-hd:checked~.demo label[for=qa-hd],#qa-4k:checked~.demo label[for=qa-4k]{background:var(--grad);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.3)}
#qa-sd:checked~.demo .q-sd,#qa-hd:checked~.demo .q-hd,#qa-4k:checked~.demo .q-4k{display:block}
.q-sd,.q-hd,.q-4k{display:none}
.demo-file{position:absolute;left:0;right:0;bottom:0;background:#fff;border-top:2px solid var(--line);padding:14px 18px;display:none;z-index:5}
#demo-file:checked~.demo .demo-file{display:block}
.demo-file .fp{display:flex;justify-content:space-between;font-size:13px;font-weight:700;margin-bottom:8px;color:#475569}
.demo-file .fp b{color:#059669}
.fbar{height:8px;background:#e2e8f0;border-radius:50px;overflow:hidden}
.fbar i{display:block;height:100%;width:47%;background:var(--grad);border-radius:50px;animation:fil .5s ease}
@keyframes fil{from{width:0}to{width:47%}}
.demo-foot{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding:12px 16px;border-top:1px solid var(--line);background:#f8fafc}
.demo-foot label.file-toggle{font-size:13px;font-weight:700;color:var(--p);cursor:pointer;display:inline-flex;align-items:center;gap:6px;background:rgba(37,99,235,.08);padding:8px 16px;border-radius:50px;white-space:nowrap}
.demo-foot label.file-toggle:active{transform:scale(.96)}
.demo-foot span.tip{font-size:12px;color:var(--mut);margin-left:auto;white-space:nowrap}
#demo-conn{position:absolute;opacity:0;pointer-events:none}
#demo-file{position:absolute;opacity:0;pointer-events:none}
.brand-row{padding:26px 0;background:#fff;border-bottom:1px solid var(--line)}
.brand-row .wrap{display:flex;align-items:center;justify-content:center;gap:44px;flex-wrap:wrap}
.brand-row span{font-size:14px;color:var(--mut);font-weight:600}
.brand-row .os{font-size:18px;font-weight:800;color:#94a3b8;letter-spacing:1px}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feat-card{background:var(--card);border-radius:var(--r);padding:30px 26px;box-shadow:var(--sh);border:1px solid transparent;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.feat-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(37,99,235,.14);border-color:rgba(37,99,235,.25)}
.feat-card .fi{width:54px;height:54px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:900;margin-bottom:18px;box-shadow:var(--sh2)}
.feat-card h3{font-size:18px;margin-bottom:10px;color:var(--dk)}
.feat-card p{font-size:14px;color:var(--mut)}
.sec-quality{background:linear-gradient(180deg,#0b1226 0%,#131c3d 100%);color:#fff}
.sec-quality .sec-title{color:#fff}
.q-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.q-vis{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.15)}
.q-vis .q-bar{display:flex;align-items:center;gap:8px;padding:10px 16px;background:rgba(255,255,255,.06)}
.q-vis .q-bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.3)}
.q-vis .q-bar span{flex:1;font-size:12px;color:#cbd5e1;text-align:center}
.q-vis .q-pic{aspect-ratio:16/9;background:linear-gradient(135deg,#1d4ed8,#7c3aed,#be185d);display:flex;align-items:center;justify-content:center;position:relative}
.q-vis .q-pic b{font-size:34px;font-weight:900;color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.4)}
.q-badge{position:absolute;top:14px;right:14px;background:rgba(15,23,42,.65);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:13px;font-weight:700;padding:7px 16px;border-radius:50px}
.q-list li{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.q-list li:last-child{border-bottom:0}
.q-list .qn{min-width:64px;font-size:26px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.q-list h4{font-size:17px;color:#fff;margin-bottom:6px}
.q-list p{font-size:14px;color:#94a3b8}
.sec-latency{background:linear-gradient(160deg,#f0f4ff 0%,#faf5ff 100%)}
.l-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.l-card{background:#fff;border-radius:var(--r);padding:34px 30px;text-align:center;box-shadow:var(--sh);transition:transform .25s,box-shadow .25s}
.l-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(124,58,237,.15)}
.l-card b{display:block;font-size:40px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.l-card span{display:block;font-size:14px;color:var(--mut);margin-top:8px}
.l-card h4{font-size:16px;margin-top:16px;color:var(--dk)}
.l-card p{font-size:13px;color:var(--mut);margin-top:6px}
.sec-devices{background:#fff}
.d-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.d-card{padding:34px 18px;border-radius:var(--r);border:1px solid var(--line);transition:transform .25s,box-shadow .25s,border-color .25s;background:var(--bg)}
.d-card:hover{transform:translateY(-6px);border-color:rgba(37,99,235,.4);box-shadow:var(--sh2)}
.d-card .os-ic{width:64px;height:64px;margin:0 auto 16px;border-radius:18px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;box-shadow:var(--sh2)}
.d-card h4{font-size:17px;color:var(--dk);margin-bottom:6px}
.d-card p{font-size:13px;color:var(--mut)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{position:relative;border-radius:var(--r);overflow:hidden;background:linear-gradient(150deg,#1e293b,#0f172a);color:#fff;padding:34px 30px;min-height:210px;transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column;justify-content:flex-end}
.scene-card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 200px at 90% 0%,rgba(37,99,235,.4),transparent 60%)}
.scene-card:hover{transform:translateY(-6px);box-shadow:0 20px 50px rgba(15,23,42,.3)}
.scene-card .sno{position:absolute;top:20px;left:26px;font-size:15px;font-weight:900;color:rgba(255,255,255,.4);letter-spacing:1px}
.scene-card h3{font-size:19px;margin-bottom:10px;position:relative}
.scene-card p{font-size:13.5px;color:#cbd5e1;position:relative}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.steps4{grid-template-columns:repeat(4,1fr)}
.step-card{background:#fff;border-radius:var(--r);padding:34px 28px;box-shadow:var(--sh);position:relative;transition:transform .25s}
.step-card:hover{transform:translateY(-6px)}
.step-card .stno{width:52px;height:52px;border-radius:50%;background:var(--grad);color:#fff;font-size:22px;font-weight:900;display:flex;align-items:center;justify-content:center;margin-bottom:18px;box-shadow:var(--sh2)}
.step-card h3{font-size:18px;margin-bottom:10px;color:var(--dk)}
.step-card p{font-size:14px;color:var(--mut)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border-radius:20px;padding:38px 32px;box-shadow:var(--sh);border:1px solid var(--line);position:relative;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.price-card.hot{border:2px solid var(--p);transform:scale(1.04);box-shadow:0 24px 60px rgba(37,99,235,.2);z-index:2}
.price-card.hot:hover{transform:scale(1.04) translateY(-4px)}
.hot-tag{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:13px;font-weight:800;padding:6px 20px;border-radius:50px;box-shadow:var(--sh2);white-space:nowrap}
.price-card h3{font-size:20px;color:var(--dk)}
.price-card .pd{font-size:13px;color:var(--mut);margin:6px 0 20px}
.price-card .pr{font-size:42px;font-weight:900;color:var(--dk)}
.price-card .pr i{font-style:normal;font-size:18px;color:var(--mut);font-weight:600}
.price-card .pr span{font-size:14px;color:var(--mut);font-weight:500}
.price-card ul{margin:24px 0 30px;flex:1}
.price-card ul li{position:relative;padding:8px 0 8px 28px;font-size:14.5px;color:#475569}
.price-card ul li::before{content:"";position:absolute;left:0;top:13px;width:16px;height:16px;border-radius:50%;background:rgba(37,99,235,.12)}
.price-card ul li::after{content:"";position:absolute;left:4px;top:17px;width:8px;height:5px;border-left:2px solid var(--p);border-bottom:2px solid var(--p);transform:rotate(-45deg)}
.price-card ul li.off{color:#94a3b8;text-decoration:line-through}
.price-card ul li.off::after{display:none}
.price-card .btn{width:100%}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border-radius:14px;margin-bottom:14px;box-shadow:var(--sh);overflow:hidden;border:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 26px;font-size:16px;font-weight:700;color:var(--dk);display:flex;align-items:center;justify-content:space-between;gap:14px;transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex-shrink:0;width:28px;height:28px;border-radius:50%;background:rgba(37,99,235,.1);color:var(--p);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:transform .25s,background .25s}
.faq-item[open] summary::after{transform:rotate(45deg);background:var(--grad);color:#fff}
.faq-item[open] summary{color:var(--p)}
.faq-a{padding:0 26px 22px;color:var(--mut);font-size:14.5px}
.faq-a ol{padding-left:22px;list-style:decimal;margin:10px 0 6px}
.faq-a ol li{padding:3px 0}
.tst-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tst-card{background:#fff;border-radius:var(--r);padding:30px 28px;box-shadow:var(--sh);position:relative;transition:transform .25s}
.tst-card:hover{transform:translateY(-6px)}
.tst-card .stars{color:#f59e0b;font-size:15px;letter-spacing:2px;margin-bottom:14px}
.tst-card p{font-size:14.5px;color:#475569;margin-bottom:20px}
.tst-user{display:flex;align-items:center;gap:12px}
.tst-user .av{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;flex-shrink:0}
.tst-user b{display:block;font-size:15px;color:var(--dk)}
.tst-user span{font-size:12.5px;color:var(--mut)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.news-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(37,99,235,.15)}
.news-cover{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;overflow:hidden}
.news-cover .nc-ic{font-size:40px;font-weight:900;color:rgba(255,255,255,.9)}
.news-cover .nc-date{position:absolute;left:16px;bottom:14px;background:rgba(15,23,42,.7);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:50px}
.news-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.news-cat{font-size:12px;font-weight:700;color:var(--p);background:rgba(37,99,235,.08);align-self:flex-start;padding:4px 14px;border-radius:50px;margin-bottom:12px}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px}
.news-body h3 a{color:var(--dk)}
.news-body h3 a:hover{color:var(--p)}
.news-body p{font-size:13.5px;color:var(--mut);flex:1;margin-bottom:14px}
.news-more{font-size:13.5px;font-weight:700;color:var(--p);display:inline-flex;align-items:center;gap:6px}
section.cta{position:relative;padding:90px 0;background:radial-gradient(800px 400px at 20% 0%,rgba(124,58,237,.4),transparent 60%),radial-gradient(800px 400px at 85% 100%,rgba(37,99,235,.45),transparent 60%),linear-gradient(150deg,#0b1226,#1a1140);color:#fff;text-align:center;overflow:hidden}
section.cta h2{font-size:36px;font-weight:900;margin-bottom:16px}
section.cta p{font-size:16px;color:#cbd5e1;margin-bottom:34px}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
footer.site{background:#0b1226;color:#94a3b8;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand img{width:44px;height:44px;border-radius:10px;margin-bottom:16px}
.foot-brand p{font-size:13.5px;max-width:300px;margin-bottom:18px}
.foot-brand .flinks{display:flex;gap:12px;flex-wrap:wrap}
.foot-brand .flinks a{font-size:13px;color:#cbd5e1;background:rgba(255,255,255,.08);padding:6px 14px;border-radius:50px}
.foot-brand .flinks a:hover{background:var(--grad);color:#fff}
.foot-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.foot-col ul li{margin-bottom:12px}
.foot-col ul li a{color:#94a3b8;font-size:14px}
.foot-col ul li a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot-bottom a{color:#94a3b8}
.foot-bottom a:hover{color:#fff}
.bread{background:linear-gradient(135deg,#0b1226,#1a1140);padding:120px 0 30px;color:#cbd5e1}
.bread .crumbs{display:flex;gap:10px;align-items:center;font-size:13.5px;flex-wrap:wrap}
.bread .crumbs a{color:#cbd5e1}
.bread .crumbs a:hover{color:#fff}
.bread .crumbs i{font-style:normal;color:#64748b}
.bread .crumbs b{color:#fff;font-weight:600}
.page-title{font-size:32px;font-weight:900;color:#fff;margin-top:14px}
.dl-hero{position:relative;padding:170px 0 90px;background:radial-gradient(1000px 500px at 85% 10%,rgba(124,58,237,.35),transparent 60%),linear-gradient(160deg,#0b1226,#101b3c 55%,#1a1140);color:#fff;overflow:hidden}
.dl-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.dl-hero h1{font-size:40px;font-weight:900;line-height:1.3;margin-bottom:16px}
.dl-hero p.lead{color:#cbd5e1;font-size:16.5px;margin-bottom:30px;max-width:500px}
.dl-meta{display:flex;gap:36px;flex-wrap:wrap;margin-bottom:34px}
.dl-meta .dm b{display:block;font-size:24px;font-weight:900}
.dl-meta .dm span{font-size:13px;color:#94a3b8}
.ver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.ver-card{background:#fff;border-radius:var(--r);padding:32px 26px;box-shadow:var(--sh);text-align:center;transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.ver-card:hover{transform:translateY(-6px);box-shadow:var(--sh2)}
.ver-card .v-ic{width:62px;height:62px;margin:0 auto 18px;border-radius:18px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:900;box-shadow:var(--sh2)}
.ver-card h3{font-size:18px;color:var(--dk)}
.ver-card .vn{font-size:13px;color:var(--p);font-weight:700;margin:6px 0 4px}
.ver-card .vs{font-size:13px;color:var(--mut);margin-bottom:16px}
.ver-card ul{text-align:left;font-size:13px;color:#475569;margin-bottom:22px;flex:1}
.ver-card ul li{padding:4px 0 4px 22px;position:relative}
.ver-card ul li::before{content:"";position:absolute;left:0;top:11px;width:13px;height:13px;border-radius:50%;background:rgba(37,99,235,.12)}
.ver-card ul li::after{content:"";position:absolute;left:3px;top:14px;width:7px;height:4px;border-left:2px solid var(--p);border-bottom:2px solid var(--p);transform:rotate(-45deg)}
.req-table{max-width:760px;margin:0 auto;background:#fff;border-radius:var(--r);box-shadow:var(--sh);overflow:hidden}
.req-table .rt{display:grid;grid-template-columns:200px 1fr;border-bottom:1px solid var(--line)}
.req-table .rt:last-child{border-bottom:0}
.req-table .rt b{background:#f8fafc;padding:16px 24px;font-size:14.5px;color:var(--dk)}
.req-table .rt span{padding:16px 24px;font-size:14.5px;color:var(--mut)}
.newslist-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.newslist-item{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;transition:transform .25s,box-shadow .25s}
.newslist-item:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.newslist-item .nimg{width:200px;flex-shrink:0;background:linear-gradient(135deg,#2563eb,#7c3aed);display:flex;align-items:center;justify-content:center;min-height:150px}
.newslist-item .nimg b{color:rgba(255,255,255,.92);font-size:30px;font-weight:900}
.nimg-b{background:linear-gradient(135deg,#7c3aed,#db2777)}
.nimg-c{background:linear-gradient(135deg,#0891b2,#2563eb)}
.nimg-d{background:linear-gradient(135deg,#f97316,#ef4444)}
.nimg-e{background:linear-gradient(135deg,#059669,#0d9488)}
.nimg-f{background:linear-gradient(135deg,#334155,#64748b)}
.newslist-item .nbody{padding:20px 24px;display:flex;flex-direction:column;flex:1}
.newslist-item .nbody h3{font-size:17px;line-height:1.5;margin-bottom:8px}
.newslist-item .nbody h3 a{color:var(--dk)}
.newslist-item .nbody h3 a:hover{color:var(--p)}
.newslist-item .nbody p{font-size:13px;color:var(--mut);flex:1;margin-bottom:10px}
.newslist-item .nmeta{display:flex;gap:16px;font-size:12.5px;color:var(--mut)}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.article-main{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:44px 48px;min-width:0}
.article-meta{display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:13.5px;color:var(--mut);margin:16px 0 24px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-meta .am-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .am-item b{color:var(--p);font-weight:700}
.article-cover{border-radius:14px;overflow:hidden;margin-bottom:28px}
.article-body{font-size:16px;color:#334155;line-height:1.9}
.article-body>p{margin-bottom:20px}
.article-body h2{font-size:23px;color:var(--dk);margin:34px 0 16px;padding-left:16px;border-left:4px solid var(--p);scroll-margin-top:90px}
.article-body h2 span{background:rgba(37,99,235,.08);color:var(--p);font-size:14px;padding:2px 12px;border-radius:50px;margin-left:10px;vertical-align:middle}
.article-body .lead{font-size:16.5px;color:#475569;background:#f8fafc;border-radius:12px;padding:18px 22px;border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figure img{border-radius:14px;width:100%}
.article-body figure figcaption{font-size:13px;color:var(--mut);text-align:center;margin-top:10px}
.article-body blockquote{border-left:4px solid var(--p);background:rgba(37,99,235,.05);padding:16px 22px;border-radius:0 12px 12px 0;margin:22px 0;font-size:15px;color:#475569}
.article-body .data-block{background:linear-gradient(135deg,#eff6ff,#f5f3ff);border:1px solid rgba(37,99,235,.15);border-radius:14px;padding:22px 26px;margin:22px 0}
.article-body .data-block b{color:var(--p);font-size:22px}
.article-end{margin-top:34px;padding:22px;background:#f8fafc;border-radius:14px;font-size:14.5px;color:#475569}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:30px;flex-wrap:wrap}
.article-nav a{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;background:#f8fafc;border:1px solid var(--line);padding:12px 20px;border-radius:50px;color:var(--tx);max-width:46%}
.article-nav a:hover{border-color:var(--p);color:var(--p)}
.article-rel{margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.article-rel h3{font-size:18px;color:var(--dk);margin-bottom:16px}
.article-rel ul li{padding:9px 0;border-bottom:1px dashed var(--line)}
.article-rel ul li:last-child{border-bottom:0}
.article-rel ul li a{font-size:14.5px;color:#475569;display:flex;gap:10px;align-items:center}
.article-rel ul li a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--p);flex-shrink:0}
.article-rel ul li a:hover{color:var(--p)}
.comments{margin-top:38px;padding-top:28px;border-top:1px solid var(--line)}
.comments h3{font-size:19px;color:var(--dk);margin-bottom:20px}
.cmt{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.cmt:last-child{border-bottom:0}
.cmt .av{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#60a5fa,#a78bfa);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0}
.cmt .cb b{font-size:14.5px;color:var(--dk);display:block}
.cmt .cb .cd{font-size:12px;color:#94a3b8}
.cmt .cb p{font-size:14px;color:#475569;margin-top:6px}
.aside{position:sticky;top:90px;display:flex;flex-direction:column;gap:24px}
.a-card{background:#fff;border-radius:var(--r);box-shadow:var(--sh);padding:24px}
.a-card h4{font-size:16px;color:var(--dk);padding-left:14px;border-left:4px solid var(--p);margin-bottom:18px}
.toc-list{position:relative}
.toc-list::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;background:var(--line)}
.toc-list li{position:relative;padding:8px 0 8px 24px}
.toc-list li::before{content:"";position:absolute;left:1px;top:15px;width:10px;height:10px;border-radius:50%;background:#cbd5e1;border:2px solid #fff;box-shadow:0 0 0 1px #cbd5e1;transition:background .2s,box-shadow .2s}
.toc-list li a{font-size:13.5px;color:#475569;line-height:1.5;display:block}
.toc-list li a:hover{color:var(--p)}
.toc-list li.act::before{background:var(--p);box-shadow:0 0 0 3px rgba(37,99,235,.25)}
.toc-list li.act a{color:var(--p);font-weight:800}
.rank-list li{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line)}
.rank-list li:last-child{border-bottom:0}
.rank-list .rk{min-width:26px;height:26px;border-radius:8px;background:#e2e8f0;color:#64748b;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;transition:transform .2s}
.rank-list li:nth-child(1) .rk{background:var(--grad);color:#fff}
.rank-list li:nth-child(2) .rk{background:linear-gradient(135deg,#fb923c,#f97316);color:#fff}
.rank-list li:nth-child(3) .rk{background:linear-gradient(135deg,#fbbf24,#d97706);color:#fff}
.rank-list li:hover .rk{transform:scale(1.15)}
.rank-list li a{font-size:13.5px;color:#475569;line-height:1.5;flex:1}
.rank-list li a:hover{color:var(--p)}
.tag-caps{display:flex;flex-wrap:wrap;gap:10px}
.tag-caps a{font-size:13px;color:#475569;background:#f1f5f9;border:1px solid transparent;padding:7px 15px;border-radius:50px;transition:all .2s}
.tag-caps a:hover{color:var(--p);border-color:var(--p);background:#eff6ff}
.notfound{min-height:72vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:170px 20px 80px;background:radial-gradient(900px 500px at 50% 0%,rgba(37,99,235,.15),transparent 60%)}
.nf-box b{display:block;font-size:110px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.nf-box h1{font-size:26px;color:var(--dk);margin:10px 0 14px}
.nf-box p{font-size:15px;color:var(--mut);margin-bottom:26px}
.nf-box .btn{margin:0 8px}
.sitemap-sec{background:linear-gradient(135deg,#0b1226,#1a1140);padding:150px 0 80px;color:#fff;min-height:60vh}
.sitemap-sec h1{font-size:34px;font-weight:900;margin-bottom:40px}
.sm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.sm-col{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:28px}
.sm-col h2{font-size:17px;margin-bottom:18px;color:#fff;padding-left:14px;border-left:4px solid #60a5fa}
.sm-col ul li{margin-bottom:12px}
.sm-col ul li a{color:#cbd5e1;font-size:14px}
.sm-col ul li a:hover{color:#fff}
.sm-col ul li a i{font-style:normal;color:#64748b;margin-right:6px}
.reveal{transition:opacity .6s ease,transform .6s ease}
html.js .reveal{opacity:0;transform:translateY(26px)}
html.js .reveal.on{opacity:1;transform:none}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.pulse{animation:pulse 1.6s infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.floaty{animation:floaty 5s ease-in-out infinite}
@media(max-width:992px){
.nav-menu{position:fixed;top:70px;right:0;bottom:0;width:min(320px,86vw);background:#fff;flex-direction:column;align-items:stretch;gap:4px;padding:20px;transform:translateX(105%);transition:transform .3s;box-shadow:-20px 0 60px rgba(15,23,42,.25);overflow-y:auto;z-index:940}
#nav-toggle:checked~.nav-menu{transform:translateX(0)}
.burger{display:flex}
.nav-menu>li{position:static}
.nav-menu>li>a,.drop-label{color:var(--tx);padding:13px 16px;justify-content:space-between;font-size:15.5px}
.nav-menu>li>a:hover,.drop-label:hover{background:rgba(37,99,235,.08);color:var(--p)}
.nav-menu>li.cta{margin-top:8px}
.nav-menu>li.cta>a{justify-content:center}
.drop{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;display:none;padding:0 0 4px;min-width:0}
.drop-toggle:checked~.drop{display:block}
.has-drop:hover .drop{display:none}
.has-drop:hover .drop-toggle:checked~.drop{display:block}
.drop li a{padding:11px 16px 11px 30px;font-size:14.5px;color:#475569;border-left:2px solid var(--line);border-radius:0;margin-left:14px}
.drop li a:hover{background:transparent;color:var(--p);border-left-color:var(--p)}
.hero{padding:140px 0 80px}
.hero-grid,.dl-hero-grid{grid-template-columns:1fr;gap:44px}
.hero h1{font-size:36px}
.feat-grid{grid-template-columns:repeat(2,1fr)}
.scene-grid,.steps-grid,.price-grid,.tst-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
.steps4{grid-template-columns:repeat(2,1fr)}
.q-grid{grid-template-columns:1fr}
.l-grid{grid-template-columns:repeat(2,1fr)}
.d-grid{grid-template-columns:repeat(2,1fr)}
.ver-grid{grid-template-columns:repeat(2,1fr)}
.price-card.hot{transform:none}
.price-card.hot:hover{transform:translateY(-6px)}
.article-layout{grid-template-columns:1fr}
.aside{position:static}
.foot-grid{grid-template-columns:1fr 1fr}
.newslist-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
.sec{padding:60px 0}
.sec-title{font-size:27px}
.hero h1{font-size:30px}
.dl-hero h1{font-size:30px}
.hero-stats,.dl-meta{gap:22px}
.hero-stats .hs b{font-size:23px}
.feat-grid,.scene-grid,.steps-grid,.price-grid,.tst-grid,.news-grid,.l-grid,.d-grid,.ver-grid{grid-template-columns:1fr}
.steps4{grid-template-columns:1fr}
.demo-bar{gap:6px}
.demo-stat{min-width:64px}
.article-main{padding:28px 22px}
.article-body h2{font-size:20px}
.foot-grid{grid-template-columns:1fr}
.req-table .rt{grid-template-columns:1fr}
.req-table .rt b{padding:12px 18px}
.req-table .rt span{padding:10px 18px}
section.cta h2{font-size:27px}
}
@media(max-width:480px){
.wrap{padding:0 16px}
.hero-btns .btn,.cta-btns .btn{width:100%}
.hero-stats{gap:14px;justify-content:space-between;width:100%}
.hero-stats .hs b{font-size:20px}
.demo-icon{width:70px}
.demo-icon .ic{width:46px;height:46px;font-size:17px}
.newslist-item{flex-direction:column}
.newslist-item .nimg{width:100%;min-height:130px}
.article-nav a{max-width:100%;width:100%}
.bread{padding:110px 0 22px}
.page-title{font-size:25px}
.demo-foot .demo-qa{flex:1 1 100%;justify-content:center}
.demo-foot label.file-toggle{flex:1 1 auto;justify-content:center}
.demo-foot span.tip{flex:1 1 100%;text-align:center;margin-left:0}
}