:root{--night:#10141d;--night2:#1b2230;--silver:#c8d0dc;--moon:#f1f3f5;--blue:#7d9bc3;--ice:#edf0f3;--white:#fff;--ink:#252d39;--muted:#77818e;--line:#d4dae1}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#f7f8f9;font-family:"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:min(1180px,calc(100% - 46px));margin:auto}.skip{position:fixed;z-index:99;top:5px;left:5px;padding:8px 13px;color:var(--night);background:var(--moon);transform:translateY(-150%)}.skip:focus{transform:none}
.header{position:sticky;z-index:50;top:0;color:#e9edf2;background:rgba(16,20,29,.88);border-bottom:1px solid rgba(200,208,220,.14);backdrop-filter:blur(18px)}.nav{min-height:76px;display:flex;align-items:center;gap:27px}.brand{display:flex;align-items:center;gap:11px;font-weight:900}.logo{width:39px;height:39px;display:grid;place-items:center;color:var(--night);background:var(--moon);border-radius:50%;box-shadow:-8px 0 0 rgba(125,155,195,.35)}.links{margin-left:auto;display:flex;gap:24px;color:#98a2af;font-size:11px}.links a:hover,.links a[aria-current=page]{color:#fff}.lang{color:#697583;font-size:10px}.btn{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:9px 20px;color:var(--night);background:var(--moon);border:1px solid var(--moon);border-radius:4px;font-size:11px;font-weight:900;white-space:nowrap;word-break:keep-all;writing-mode:horizontal-tb}.btn:hover{color:#fff;background:var(--blue);border-color:var(--blue)}.btn-ghost{color:#e5e9ef;background:transparent;border-color:#596575}.menu{display:none;margin-left:auto;width:42px;height:42px;color:#fff;background:transparent;border:1px solid #4c5765;border-radius:4px}
.hero{position:relative;overflow:hidden;color:#edf0f4;background:linear-gradient(145deg,#0d1119,#202837)}.hero:before{content:"";position:absolute;top:65px;right:10%;width:440px;height:440px;background:radial-gradient(circle at 43% 42%,#fafbfc 0 27%,#d7dce3 28% 43%,rgba(139,156,179,.18) 44% 61%,transparent 62%);border-radius:50%;opacity:.9}.hero:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 10% 20%,#fff 0 1px,transparent 2px),radial-gradient(circle at 35% 70%,#fff 0 1px,transparent 2px),radial-gradient(circle at 75% 25%,#fff 0 1px,transparent 2px);background-size:160px 170px,210px 190px,280px 250px;opacity:.35}.hero-grid{position:relative;z-index:2;min-height:790px;display:grid;grid-template-columns:1fr 430px;align-items:center;gap:95px;padding:70px 0 100px}.eyebrow{color:#aeb9c7;font-size:9px;font-weight:900;letter-spacing:.22em}.hero h1,.page-hero h1{margin:22px 0;color:#fff;font-family:Georgia,"Songti SC",serif;font-size:clamp(54px,7vw,88px);font-weight:400;line-height:1.02;letter-spacing:-.045em}.hero h1 span{display:block;color:var(--silver);font-style:italic}.lead{max-width:610px;color:#9ea9b7}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:31px}.mobile-orbit{position:relative;height:580px;display:grid;place-items:center}.orbit{position:absolute;width:520px;height:520px;border:1px solid rgba(225,231,239,.25);border-radius:50%}.orbit:before,.orbit:after{content:"";position:absolute;width:12px;height:12px;background:#fff;border-radius:50%;box-shadow:0 0 20px #fff}.orbit:before{top:14%;left:12%}.orbit:after{right:5%;bottom:28%}.phone{position:relative;z-index:2;width:260px;height:525px;padding:10px;background:#090c12;border:2px solid #8e99a7;border-radius:41px;box-shadow:0 35px 75px rgba(0,0,0,.5)}.phone:before{content:"";position:absolute;z-index:2;top:16px;left:50%;width:75px;height:19px;background:#090c12;border-radius:20px;transform:translateX(-50%)}.phone img{width:100%;height:100%;object-fit:contain;background:#232b38;border-radius:31px}.status{position:absolute;z-index:3;padding:10px 14px;color:#e8ecf1;background:rgba(32,40,54,.8);border:1px solid #66717f;border-radius:5px;backdrop-filter:blur(14px);font-size:9px}.s1{top:10%;left:-8%}.s2{right:-7%;bottom:13%}.status b{display:block;color:#fff;font-size:15px}.trust{background:#1a202b;border-top:1px solid #343d4a}.trust-row{display:grid;grid-template-columns:repeat(3,1fr)}.trust-row span{padding:25px;color:#8994a2;text-align:center;font-size:10px}.trust-row span+span{border-left:1px solid #343d4a}.trust-row b{display:block;color:#e5e9ee;font-size:14px}
.section{padding:110px 0}.section-ice{background:var(--ice)}.section-night{color:#e9edf2;background:var(--night)}.head{display:grid;grid-template-columns:220px 1fr;gap:55px;margin-bottom:55px}.head h2{margin:0;color:var(--ink);font-family:Georgia,"Songti SC",serif;font-size:clamp(39px,5vw,58px);font-weight:400;line-height:1.08}.section-night .head h2{color:#eef1f4}.head p{grid-column:2;margin:0;max-width:640px;color:var(--muted)}.section-night .head p{color:#8995a4}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.metric{padding:32px;background:#fff;border:1px solid var(--line)}.metric strong{display:block;color:#4f6279;font-family:Georgia,serif;font-size:35px;font-weight:400}.metric span{color:#85909d;font-size:10px}.fine{color:#919aa5;font-size:9px;text-align:right}
.features{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(2,290px);gap:10px}.feature{padding:34px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}.feature:first-child{grid-row:span 2;color:#fff;background:#313b4a}.feature img{width:100%;height:300px;object-fit:contain;opacity:.8}.feature code{color:#8190a2;font-size:9px}.feature h3{margin:55px 0 8px;font-family:Georgia,"Songti SC",serif;font-size:27px;font-weight:400}.feature:first-child h3{margin-top:40px}.feature p{color:#778391;font-size:11px}.feature:first-child p{color:#aab4c0}
.routes{display:grid;grid-template-columns:1fr 420px;gap:12px}.map{height:525px;padding:25px;background:#202734;border:1px solid #3e4755}.map img{width:100%;height:100%;object-fit:contain;opacity:.5;filter:grayscale(1) brightness(1.3)}.nodes{display:grid;gap:7px}.node{display:grid;grid-template-columns:1fr 80px;align-items:center;padding:20px;background:#202734;border:1px solid #3e4755}.node small{display:block;color:#727f8f;font-size:9px}.node b{color:#d6dce4;text-align:right}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.review{padding:29px;background:#fff;border-top:3px solid #7f8c9d}.review img{width:100%;height:140px;object-fit:cover;filter:grayscale(1)}.stars{margin-top:20px;color:#7b8797;letter-spacing:3px}.review blockquote{margin:14px 0;color:#576575}.review footer{color:#8c97a3;font-size:10px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.plan{min-height:430px;padding:32px;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line)}.plan.best{color:#fff;background:#303a48;border-color:#303a48}.plan small{color:#7c8999}.plan h3{font-family:Georgia,"Songti SC",serif;font-size:26px;font-weight:400}.price{font-family:Georgia,serif;font-size:42px}.price span{font-size:10px}.plan ul{padding:0;list-style:none;color:#7c8895;font-size:11px}.plan.best ul{color:#b6c0cb}.plan li{padding:6px}.plan li:before{content:"○";margin-right:8px}.plan .btn{width:100%;margin-top:auto}.plan.best .btn{color:#202734;background:#fff}
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.qa{padding:28px;background:#fff;border:1px solid var(--line)}.qa code{color:#8290a0;font-size:9px}.qa h3{margin:22px 0 8px;font-family:Georgia,"Songti SC",serif;font-size:21px;font-weight:400}.qa p,.qa li{color:var(--muted);font-size:12px}
.page-hero{position:relative;overflow:hidden;padding:100px 0 80px;color:#fff;background:linear-gradient(145deg,#10141d,#2c3544)}.page-hero:after{content:"";position:absolute;top:40px;right:10%;width:290px;height:290px;background:radial-gradient(circle,#f2f4f6 0 36%,rgba(203,211,222,.15) 37% 61%,transparent 62%);border-radius:50%}.page-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 330px;align-items:center;gap:100px}.page-hero h1{font-size:clamp(45px,6vw,72px)}.page-phone{height:490px;padding:10px;background:#090c12;border:2px solid #8e99a7;border-radius:40px;box-shadow:0 30px 60px rgba(0,0,0,.35)}.page-phone img{width:100%;height:100%;object-fit:contain;background:#232b38;border-radius:30px}
.downloads{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.download{min-height:280px;padding:31px;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line)}.download.primary{background:#e6eaf0;border-color:#9ba6b4}.os{width:54px;height:54px;display:grid;place-items:center;color:#fff;background:#3b4655;border-radius:50%;font-weight:900}.download h3{margin:40px 0 3px;font-family:Georgia,"Songti SC",serif;font-size:25px;font-weight:400}.download p{margin:0;color:var(--muted);font-size:11px}.download .btn{align-self:flex-start;margin-top:auto;background:#303a48;color:#fff;border-color:#303a48}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.step{padding:28px;background:#202734;border:1px solid #3e4755}.step b{color:#d9dfe7;font-family:Georgia,serif;font-size:27px}.step h3{margin:55px 0 8px}.step p{color:#8d99a7;font-size:11px}
.guide{display:grid;grid-template-columns:250px 1fr;gap:75px}.guide-nav{position:sticky;top:100px;height:max-content;background:#fff;border:1px solid var(--line);padding:9px}.guide-nav a{display:block;padding:11px 13px;color:#7b8795;font-size:10px}.guide-nav a:hover{color:#fff;background:#3b4655}.guide-body h2{margin:55px 0 14px;font-family:Georgia,"Songti SC",serif;font-size:30px;font-weight:400}.guide-body h2:first-child{margin-top:0}.guide-body p,.guide-body li{color:var(--muted)}.notice{padding:21px;background:#e7ebef;border-left:4px solid #667486}.cta{margin-top:70px;padding:40px 43px;display:flex;align-items:center;justify-content:space-between;gap:30px;color:#fff;background:#242c39}.cta h2{margin:0;font-family:Georgia,"Songti SC",serif;font-weight:400}.cta p{margin:4px 0;color:#a5b0bc}.footer{padding:58px 0 22px;color:#bbc3cd;background:#0a0d13}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:45px}.footer p{max-width:340px;color:#65707e;font-size:10px}.footer h3{color:#d5dae1;font-size:10px}.footer-links{display:grid;gap:8px;color:#747f8d;font-size:10px}.copy{display:flex;justify-content:space-between;margin-top:42px;padding-top:18px;border-top:1px solid #29303b;color:#596472;font-size:9px}
@media(max-width:920px){.links{position:absolute;top:76px;right:23px;left:23px;display:none;padding:18px;background:#151b25;border:1px solid #3b4552;flex-direction:column}.links.open{display:flex}.menu{display:block}.lang,.nav>.btn{display:none}.hero-grid,.page-grid,.routes{grid-template-columns:1fr}.mobile-orbit{max-width:460px;margin:auto}.head{grid-template-columns:1fr;gap:17px}.head p{grid-column:1}.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-grid{min-height:auto;padding:65px 0}.hero h1{font-size:49px}.mobile-orbit{height:510px}.orbit{width:400px;height:400px}.phone{width:230px;height:465px}.trust-row,.metrics,.features,.plans,.faq,.downloads,.steps{grid-template-columns:1fr}.trust-row span+span{border-top:1px solid #343d4a;border-left:0}.section{padding:76px 0}.features{grid-template-rows:auto}.feature:first-child{grid-row:auto}.reviews{grid-template-columns:1fr}.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}}