:root{--night:#06171a;--deep:#0b292a;--panel:#103638;--green:#66d39e;--lime:#c5ed6f;--cyan:#76e7df;--white:#edf7f4;--muted:#87a8a2;--line:#285451;--paper:#edf4ef;--ink:#173f3c}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--white);background:var(--night);font-family:"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:min(1220px,calc(100% - 46px));margin:auto}.skip{position:fixed;z-index:99;top:5px;left:5px;padding:8px 13px;color:var(--night);background:var(--lime);transform:translateY(-150%)}.skip:focus{transform:none}
.header{position:sticky;z-index:50;top:0;background:rgba(6,23,26,.9);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.nav{min-height:74px;display:flex;align-items:center;gap:27px}.brand{display:flex;align-items:center;gap:10px;font-weight:900}.logo{width:40px;height:40px;display:grid;place-items:center;color:var(--night);background:var(--green);border-radius:50%;position:relative}.logo:after{content:"";position:absolute;inset:-6px;border:1px dashed var(--green);border-radius:50%}.links{margin-left:auto;display:flex;gap:24px;color:#86a39f;font-size:10px}.links a:hover,.links a[aria-current=page]{color:var(--lime)}.lang{color:#57756f;font-size:9px}.btn{display:inline-flex;min-height:43px;align-items:center;justify-content:center;padding:9px 19px;color:var(--night);background:var(--lime);border:1px solid var(--lime);border-radius:999px;font-size:10px;font-weight:900;white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb}.btn:hover{background:var(--cyan);border-color:var(--cyan)}.btn-ghost{color:var(--cyan);background:transparent;border-color:#39776f}.menu{display:none;margin-left:auto;width:42px;height:42px;color:var(--green);background:transparent;border:1px solid var(--line);border-radius:50%}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 50% 75%,rgba(74,183,146,.18),transparent 35%),var(--night)}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle,#b7e8d5 0 1px,transparent 1.5px) 0 0/130px 114px;opacity:.16}.hero-inner{position:relative;z-index:2;min-height:850px;padding:90px 0 80px;text-align:center}.eyebrow{color:var(--green);font:900 9px Consolas,monospace;letter-spacing:.19em}.hero h1,.page-hero h1{margin:20px auto;max-width:1000px;font-size:clamp(54px,7vw,90px);line-height:.97;letter-spacing:-.065em}.hero h1 span{color:var(--lime)}.lead{max-width:720px;margin:0 auto;color:var(--muted)}.actions{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:29px}.sat-stage{position:relative;width:min(850px,100%);height:470px;margin:45px auto 0}.radar{position:absolute;top:50%;left:50%;width:600px;height:600px;border:1px solid #27524f;border-radius:50%;transform:translate(-50%,-50%);background:repeating-radial-gradient(circle,transparent 0 72px,rgba(101,206,158,.12) 73px 74px)}.radar:after{content:"";position:absolute;top:50%;left:50%;width:50%;height:1px;background:linear-gradient(90deg,var(--green),transparent);transform-origin:left;transform:rotate(-28deg)}.tablet{position:absolute;z-index:2;inset:55px 60px 0;padding:12px;background:#02090b;border:2px solid #6b8581;border-radius:28px;box-shadow:0 35px 80px rgba(0,0,0,.5)}.tablet img{width:100%;height:100%;object-fit:contain;background:#0e3031;border-radius:17px}.signal{position:absolute;z-index:3;padding:9px 12px;background:#0d3030;border:1px solid #3f7069;font:9px Consolas,monospace}.sg1{top:2%;left:0}.sg2{right:0;bottom:2%}.signal b{display:block;color:var(--lime);font-size:14px}.trust{background:#0a2526;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.trust-row{display:grid;grid-template-columns:repeat(3,1fr)}.trust-row span{padding:23px;text-align:center;color:#849f9a;font-size:10px}.trust-row span+span{border-left:1px solid var(--line)}.trust-row b{display:block;color:var(--green);font-size:13px}
.section{padding:105px 0}.section-deep{background:var(--deep)}.section-light{color:var(--ink);background:var(--paper)}.head{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:52px}.head div{max-width:760px}.head h2{margin:11px 0 0;font-size:clamp(38px,5vw,57px);line-height:1.06;letter-spacing:-.045em}.head p{max-width:420px;margin:0;color:var(--muted)}.section-light .head p{color:#688780}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.metric{padding:29px;background:var(--panel);border:1px solid var(--line)}.metric strong{display:block;color:var(--lime);font:900 34px Consolas,monospace}.metric span{color:#839f9a;font-size:10px}.fine{color:#5b7b75;font-size:9px;text-align:right}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.feature{min-height:430px;padding:29px;display:flex;flex-direction:column;background:#fff;border:1px solid #c9d9d2}.feature:nth-child(2){margin-top:45px}.feature img{width:100%;height:220px;object-fit:contain}.feature code{color:#30806d;font:9px Consolas,monospace}.feature h3{margin:auto 0 8px;font-size:25px}.feature p{color:#66837d;font-size:11px}
.routes{display:grid;grid-template-columns:440px 1fr;gap:14px}.radar-map{height:520px;padding:23px;background:repeating-radial-gradient(circle at center,transparent 0 70px,rgba(104,212,161,.12) 71px 72px),#0d3031;border:1px solid var(--line);border-radius:50%}.radar-map img{width:100%;height:100%;object-fit:contain;opacity:.52;filter:hue-rotate(75deg)}.nodes{display:grid;grid-template-columns:1fr 1fr;gap:8px;align-content:center}.node{padding:20px;background:var(--panel);border:1px solid var(--line)}.node small{display:block;color:#758f8a;font-size:9px}.node b{display:block;margin-top:16px;color:var(--lime);font-family:Consolas,monospace}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.review{padding:27px;background:#fff;border:1px solid #c9d9d2}.review img{width:100%;height:135px;object-fit:cover;filter:saturate(.5) hue-rotate(70deg)}.stars{margin-top:19px;color:#38866f;letter-spacing:3px}.review blockquote{margin:13px 0;color:#526f68}.review footer{color:#879c96;font-size:10px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.plan{min-height:420px;padding:30px;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line)}.plan.best{color:var(--night);background:var(--green);border-color:var(--green)}.plan small{color:var(--cyan);font-family:Consolas,monospace}.plan.best small{color:#164f41}.plan h3{font-size:24px}.price{font:900 41px Consolas,monospace}.price span{font-size:10px}.plan ul{padding:0;list-style:none;color:#8ea6a1;font-size:11px}.plan.best ul{color:#174d40}.plan li{padding:6px}.plan li:before{content:"◎";margin-right:8px}.plan .btn{width:100%;margin-top:auto}.plan.best .btn{color:#fff;background:var(--night);border-color:var(--night)}
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.qa{padding:27px;background:#fff;border:1px solid #c9d9d2}.qa code{color:#30806d;font:9px Consolas,monospace}.qa h3{margin:20px 0 8px}.qa p,.qa li{color:#688780;font-size:12px}
.page-hero{position:relative;padding:100px 0 75px;background:radial-gradient(circle at 75% 45%,rgba(74,183,146,.2),transparent 27%),var(--night)}.page-grid{display:grid;grid-template-columns:1fr 560px;align-items:center;gap:70px}.page-hero h1{font-size:clamp(45px,6vw,72px)}.page-tablet{height:380px;padding:11px;background:#02090b;border:2px solid #6b8581;border-radius:25px;box-shadow:0 30px 65px rgba(0,0,0,.42)}.page-tablet img{width:100%;height:100%;object-fit:contain;background:#0e3031;border-radius:15px}
.downloads{display:grid;gap:9px}.download{display:grid;grid-template-columns:70px 1fr 215px;align-items:center;gap:24px;padding:23px;background:#fff;border:1px solid #c9d9d2}.download.primary{border:2px solid #3b9076}.os{width:55px;height:55px;display:grid;place-items:center;color:#fff;background:#23715f;font-weight:900}.download h3{margin:0}.download p{margin:4px 0;color:#688780;font-size:10px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.step{padding:27px;background:var(--panel);border:1px solid var(--line)}.step b{color:var(--lime);font:20px Consolas,monospace}.step h3{margin:48px 0 8px}.step p{color:#8ea6a1;font-size:11px}
.guide{display:grid;grid-template-columns:245px 1fr;gap:75px}.guide-nav{position:sticky;top:100px;height:max-content;padding:8px;background:#fff;border:1px solid #c9d9d2}.guide-nav a{display:block;padding:11px 13px;color:#688780;font:10px Consolas,monospace}.guide-nav a:hover{color:#fff;background:#23715f}.guide-body h2{margin:55px 0 14px;font-size:30px}.guide-body h2:first-child{margin-top:0}.guide-body p,.guide-body li{color:#688780}.notice{padding:21px;background:#e0ece5;border-left:4px solid #3c8e76}.cta{margin-top:70px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px;color:#fff;background:#174c46}.cta h2{margin:0}.cta p{margin:4px 0;color:#a9cac3}.footer{padding:58px 0 22px;background:#020c0e;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:45px}.footer p{max-width:340px;color:#607d77;font-size:10px}.footer h3{color:#b9d2cc;font-size:10px}.footer-links{display:grid;gap:8px;color:#6f8e87;font-size:10px}.copy{display:flex;justify-content:space-between;margin-top:42px;padding-top:18px;border-top:1px solid #23423f;color:#56746e;font-size:9px}
@media(max-width:920px){.links{position:absolute;top:74px;right:23px;left:23px;display:none;padding:18px;background:#0a2526;border:1px solid var(--line);flex-direction:column}.links.open{display:flex}.menu{display:block}.lang,.nav>.btn{display:none}.page-grid,.routes{grid-template-columns:1fr}.head{align-items:start;flex-direction:column}.guide{grid-template-columns:1fr}.guide-nav{position:static}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.wrap{width:calc(100% - 28px)}.hero-inner{min-height:auto;padding:65px 0}.hero h1{font-size:48px}.sat-stage{height:330px}.radar{width:390px;height:390px}.tablet{inset:45px 10px 0}.trust-row,.metrics,.features,.plans,.faq,.steps{grid-template-columns:1fr}.trust-row span+span{border-top:1px solid var(--line);border-left:0}.feature:nth-child(2){margin-top:0}.section{padding:75px 0}.nodes{grid-template-columns:1fr}.reviews{grid-template-columns:1fr}.download{grid-template-columns:65px 1fr}.download .btn{grid-column:1/-1}.cta,.copy{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}