/* 科技战争主题：仅覆盖视觉样式，所有原始内容和功能保持一致。 */
:root{--bg:#060b14;--panel:#0c1727;--ink:#eaf5ff;--muted:#9caec4;--line:#233c55;--orange:#41e5ff;--olive:#8baeff;--tech-glow:rgba(65,229,255,.15)}
body{background-color:var(--bg);background-image:linear-gradient(90deg,transparent 99.8%,#41e5ff08 100%);background-size:100px 100px}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse at 90% 20%,#2357ab12,transparent 55%);z-index:-1}
.wrap{width:min(1240px,calc(100% - 150px))}
.topbar{background:#060d19ed;border-bottom:1px solid #41e5ff30;box-shadow:0 8px 32px #0004}
.nav{height:86px;gap:20px}.brand-mark{background:#41e5ff0b;border-color:var(--orange);color:var(--orange);box-shadow:inset 0 0 20px #41e5ff10;width:42px;height:42px}
.brand-name{letter-spacing:1px;font-size:25px}.brand small{color:#7794b5;letter-spacing:2px;font-size:9px}
.navlinks{gap:22px;font-size:15px}.navlinks a{position:relative;padding:7px 0}.navlinks a:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange);transform:scaleX(0);transition:transform .2s;box-shadow:0 0 14px var(--orange)}.navlinks a:hover:after,.navlinks a.active:after{transform:scaleX(1)}
.nav-end{font-size:10px;letter-spacing:1px;color:var(--orange)}.status-dot{background:var(--orange);box-shadow:0 0 9px var(--orange)}
.hero{background:linear-gradient(90deg,#050c18fa 2%,#071124e6 40%,#071124a6),url("assets/videos/hero-cover.jpg") center/cover;isolation:isolate;border-bottom:1px solid #41e5ff40}
.hero:before{opacity:.45;background-image:linear-gradient(#41e5ff0c 1px,transparent 1px),linear-gradient(90deg,#41e5ff0c 1px,transparent 1px);background-size:48px 48px;mask-image:none}
.hero:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,transparent 65%,#060b14),repeating-linear-gradient(0deg,#02091600 0px,#02091600 4px,#02091635 5px);z-index:-1}
.hero-inner{min-height:720px;grid-template-columns:1.2fr 1fr;gap:35px;padding-top:76px;padding-bottom:82px}
.eyebrow{color:var(--orange);font-size:13px;letter-spacing:3px}.eyebrow:before{height:4px;width:26px;box-shadow:0 0 18px #41e5ff70}
h1{font-size:clamp(44px,4.4vw,70px);line-height:1.28;letter-spacing:0;margin:24px 0}h1 .english{font-size:clamp(53px,6.2vw,92px);letter-spacing:-3px;font-style:italic;text-shadow:3px 3px 0 #1c4a66,0 0 50px #41e5ff20;margin-bottom:18px}h1 .accent{color:var(--orange);text-shadow:0 0 32px #41e5ff2a}
.hero-copy>p{color:#b4c5d9;max-width:510px;font-size:17px;line-height:2}
.actions{gap:12px}.btn{border-color:#33516e;background:#071526aa;color:#d8eaff;min-height:50px;padding:12px 20px;gap:13px;position:relative;border-radius:3px}
.demo-purchase{display:flex;gap:12px;flex-basis:100%;flex-wrap:wrap}.demo-purchase .btn{white-space:nowrap}
.btn:hover{background:#12324a;border-color:var(--orange);box-shadow:0 0 20px #41e5ff12}
.btn-primary{color:#03131e;background:linear-gradient(110deg,#41e5ff,#9cf4ff);border-color:#72ecff;font-weight:800}.btn-primary:hover{color:#03131e;background:#b3f8ff;box-shadow:0 0 30px #41e5ff40}
.btn-download{font-size:18px;min-height:58px;padding:15px 27px;box-shadow:0 0 0 4px #41e5ff0d,0 7px 30px #41e5ff22}
.actions .btn-download{width:180px;height:58px;min-height:58px;padding:0 16px;font-size:18px;flex-shrink:0}.actions .btn-shop>span{display:inline-flex;width:20px;justify-content:center;font-size:20px;line-height:1}
.hero-meta{gap:0;margin-top:40px;border:1px solid #41e5ff22;background:#06111ec9;max-width:490px;padding:17px 0}.hero-meta span{flex:1;padding-left:20px;border-left:1px solid #41e5ff22;font-size:11px}.hero-meta span:first-child{border:0}.hero-meta b{color:var(--orange);font-size:10px;letter-spacing:1px}
.hero-art{border:1px solid #41e5ff25;background:radial-gradient(ellipse,#12345944,#06102099 65%);box-shadow:inset 0 0 50px #41e5ff07,0 20px 80px #0005;clip-path:polygon(0 0,calc(100% - 24px) 0,100% 24px,100% 100%,24px 100%,0 calc(100% - 24px))}
.hero-art:before{content:"";position:absolute;inset:0;border-top:2px solid var(--orange);pointer-events:none;background:repeating-linear-gradient(0deg,transparent 0 4px,#41e5ff02 4px 5px)}
.hero-art svg{filter:drop-shadow(0 0 15px #41e5ff25);padding:18px;width:100%;height:100%}.hero-art svg [stroke]:not([stroke="none"]){stroke:#41e5ff}.hero-art svg [fill="#ef9b46"]{fill:#ffb05a}.hero-art svg [stroke="#ef9b46"]{stroke:#ffb05a}.hero-art svg text{fill:#90c7ed}.hero-art svg [fill="#bac596"]{fill:#41e5ff}.hero-art svg [fill="#172015"]{fill:#071a2b}.hero-art svg [fill="#313b2540"]{fill:#12355350}.art-tag{right:20px;top:15px;color:#76c6ec;font-size:10px}.art-bottom{left:22px;right:22px;bottom:16px;font-size:9px;color:#6fbfe8}
.strip{padding:18px 0;color:#8aabc9;border-top-color:#41e5ff25;font-size:10px}
section{padding:88px 0;border-bottom:1px solid #41e5ff14;position:relative}section:nth-of-type(even){background:#0a1220a6}
.section-top{margin-bottom:40px}.kicker{font-size:11px;letter-spacing:3px;color:var(--orange);margin-bottom:14px}h2{font-size:36px;font-weight:800;letter-spacing:0}h3{color:#ecf5ff}.section-top p{font-size:15px;color:#9db1ca;max-width:360px}
.video-shell{grid-template-columns:minmax(0,1fr) 300px;background:linear-gradient(120deg,#0b1c30,#08121f);border:1px solid #41e5ff35;box-shadow:0 20px 65px #0004;position:relative}
.video-shell:before{content:"";position:absolute;top:-1px;left:-1px;width:90px;height:3px;background:var(--orange);z-index:2;box-shadow:0 0 18px #41e5ff50}
.video-stage{min-height:420px;background:#050d19}.video-stage video{background:#030812}.video-stage>.video{background-image:linear-gradient(#06102125,#06102185),url("assets/videos/hero-cover.jpg")}.video-stage>.video:before{color:#b8edff}.video-stage .play{width:84px;height:84px;background:#041727c7;border-color:var(--orange);box-shadow:0 0 0 9px #41e5ff12,0 0 45px #41e5ff30}.video-stage>.video:hover .play{background:#123d54}.video-stage>.video strong{font-size:22px;letter-spacing:3px}.video-info{border-left-color:#41e5ff25;padding:36px 28px}.video-info h3{font-size:27px;line-height:1.65}.info-row{border-top-color:#41e5ff1a;font-size:12px}.info-row b{color:var(--orange)}
.steps{border:0;background:transparent;gap:16px;align-items:stretch}.step,.step:last-child{position:relative;background:linear-gradient(145deg,#102239,#0b1422);border:1px solid #29415d;padding:28px 22px;box-shadow:0 12px 28px #0002}.step:before{content:"";position:absolute;left:-1px;top:-1px;width:30px;height:3px;background:var(--orange)}.step-no{color:#46749a;font-size:45px;margin-bottom:26px}.step-no span{color:var(--orange)}.step h3{font-size:20px}.step p{font-size:15px}.guide-note{padding:14px 18px;background:#0a1c2c;border:1px solid #1e3c55;margin-top:22px}
#feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;align-items:start}.feature,.feature:nth-child(even){display:flex;flex-direction:column;gap:0;margin:0;background:linear-gradient(140deg,#0e2034,#0b1423);border:1px solid #28415c;box-shadow:0 10px 35px #0003;overflow:hidden;position:relative;border-radius:4px}.feature:hover{border-color:#3a7d99}.feature .media,.feature:nth-child(even) .media{order:0;width:100%;padding:14px 14px 0}.feature-copy{padding:26px 27px 28px;width:100%}.feature-copy h3{font-size:26px;margin-bottom:14px}.feature-copy p{font-size:16px}.feature-no{display:inline-block;padding:4px 9px;color:var(--orange);background:#41e5ff0b;border:1px solid #41e5ff30;font-size:11px;letter-spacing:2px}.feature-details{font-size:15px;line-height:1.85;padding-left:20px}.feature-tag{font-size:12px;padding:5px 9px;color:#94d5ef;border-color:#305775;background:#112b40}.image-slot{background-color:#07111e;border-color:#2c4561;background-image:linear-gradient(#41e5ff0a 1px,transparent 1px),linear-gradient(90deg,#41e5ff0a 1px,transparent 1px)}.image-slot:before,.image-slot:after{border-color:var(--orange)}.image-slot img{background:#07111e}.media figcaption{font-size:10px;color:#7397b7;letter-spacing:1px;margin-top:10px}.placeholder .cross{color:#3a86a8}.placeholder strong{color:#74c8e9}.placeholder small{color:#7b98b6}.demo-note{border-color:var(--orange);padding:12px 16px;background:#41e5ff08;margin-bottom:32px}
.log-grid{grid-template-columns:1fr 2fr;gap:65px}.log-intro{position:sticky;top:120px;align-self:start}.log-intro p{max-width:290px}.log-list{border:0;position:relative;padding-left:24px}.log-list:before{content:"";position:absolute;left:0;top:25px;bottom:25px;width:1px;background:linear-gradient(var(--orange),#3668b4)}.log-list details{border:1px solid #29435d;background:linear-gradient(120deg,#0f1e31,#0a1422);margin-bottom:18px;position:relative}.log-list details:last-child{margin-bottom:0}.log-list details:before{content:"";width:7px;height:7px;background:var(--orange);border:4px solid #10263b;box-sizing:content-box;position:absolute;top:27px;left:-32px;border-radius:50%;box-shadow:0 0 12px #41e5ff40}.log-list summary{padding:22px;grid-template-columns:90px minmax(0,1fr) 20px;gap:15px}.log-title{font-size:17px}.log-date{color:#7aa7c7;font-size:11px}.badge{border-color:#41e5ff40;background:#41e5ff0b;color:var(--orange);font-size:10px;padding:4px 6px}.log-body{padding:0 24px 25px}.log-items{font-size:15px}.plus{color:var(--orange)}
.reviews{gap:16px}.postcard{background:#102036;border-color:#2d4c68;padding:10px 10px 0;border-radius:3px;box-shadow:0 8px 24px #0003}.postcard:hover{transform:translateY(-6px);border-color:var(--orange);box-shadow:0 12px 30px #41e5ff0e}.postcard .image-slot{background:#071421;border-color:#304c65}.postcard figcaption{color:#91b5d0;font-size:10px}.reviews-note{color:#7698b7}
.cta{border:1px solid #41e5ff50;background:linear-gradient(115deg,#102c42,#111d38);color:var(--ink);padding:48px;position:relative;box-shadow:0 0 55px #41e5ff08}.cta:before{content:"";position:absolute;top:-1px;left:-1px;width:150px;height:3px;background:var(--orange);box-shadow:0 0 15px #41e5ff50}.cta .kicker{color:var(--orange)}.cta h2{font-size:30px}.cta p{color:#a1b8d0}.cta .btn{background:var(--orange);border-color:var(--orange);color:#041322;font-weight:700}
footer{background:#040a13;border-top-color:#243b54;padding:35px 0}.back-top{color:var(--orange)}.contact-item{background:#081a2deF;border-color:#3a667e;color:var(--orange);border-radius:3px;box-shadow:0 5px 25px #0005,inset 0 0 15px #41e5ff07}.contact-item:hover{background:#143953;border-color:var(--orange);box-shadow:0 0 20px #41e5ff20}.rail-label{color:#6395b7}.toast{background:#b6f5ff;color:#061321}.inline-download{color:var(--orange);background:#41e5ff15}.inline-download:hover{color:#d2faff;background:#41e5ff30}dialog{background:#061121;border-color:#3a6680}dialog::backdrop{background:#010712ec}.dialog-bar{background:#0b2035}.dialog-close{background:#102b41;border-color:#325b76}
@media(max-width:1200px){.nav-end{display:none}.hero-inner{gap:25px}.hero-meta span{padding-left:14px}.steps{grid-template-columns:repeat(2,minmax(0,1fr))}.step{padding:27px}.reviews{grid-template-columns:repeat(3,minmax(0,1fr))}.log-grid{gap:35px}}
@media(min-width:761px) and (max-width:950px){.navlinks{top:86px;background:#081627}.mobile-toggle{background:#0b2236;border-color:#315874}}
@media(max-width:1000px){.wrap{width:calc(100% - 120px)}.hero-inner{grid-template-columns:1fr 1fr;min-height:640px}.hero-art{align-self:center}h1{font-size:43px}h1 .english{font-size:58px}.hero-copy>p{font-size:16px}.hero-meta{flex-wrap:wrap}.hero-meta span{font-size:10px}.hero-meta b{font-size:9px}.btn{font-size:14px;padding:11px 15px}.btn-download{font-size:17px;padding:13px 20px}.video-shell{grid-template-columns:minmax(0,1fr) 260px}.feature-copy{padding:23px}.log-grid{grid-template-columns:1fr 1.8fr}.log-list summary{grid-template-columns:1fr 20px}.log-date{grid-column:1}.log-title{grid-column:1}.log-list summary .plus{grid-column:2;grid-row:1/3}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.nav{height:70px}.navlinks{top:70px;background:#081627}.brand-name{font-size:23px}.brand small{font-size:8px}.brand-mark{width:36px;height:36px}.hero{background-position:38% center}.hero-inner{grid-template-columns:1fr;min-height:0;padding-top:50px;padding-bottom:45px;gap:35px}.hero h1{font-size:46px;line-height:1.3}.hero h1 .english{font-size:clamp(50px,14vw,72px);letter-spacing:-2px}.hero-copy>p{font-size:16px}.hero-art{width:min(440px,100%)}.eyebrow{font-size:12px}.hero-meta{max-width:none;margin-top:28px}.hero-meta span{font-size:10px}.hero-meta b{font-size:9px}.strip{font-size:8px;letter-spacing:1px;gap:15px}.strip span:last-child{display:none}section{padding:58px 0}h2{font-size:29px}.section-top{margin-bottom:28px}.section-top p{font-size:14px}.video-shell{grid-template-columns:1fr}.video-stage{min-height:280px}.video-info{border-left:0;border-top:1px solid #41e5ff25;padding:25px}.video-info h3{font-size:25px}.steps{gap:12px}.step,.step:last-child{padding:22px 18px;border:1px solid #29415d}.step:nth-child(2){border-right:1px solid #29415d}.step:nth-child(-n+2){border-bottom:1px solid #29415d}.step h3{font-size:18px}.step p{font-size:14px}.guide-note{font-size:12px}#feature-list{grid-template-columns:1fr;gap:24px}.feature,.feature:nth-child(even){margin:0;gap:0}.feature-copy h3{font-size:25px}.feature-copy{padding:23px}.feature-copy p{font-size:16px}.demo-note{font-size:13px}.log-grid{grid-template-columns:1fr;gap:28px}.log-intro{position:static}.log-intro p{max-width:none}.log-list{padding-left:20px}.log-list details:before{left:-28px}.log-list summary{padding:20px;gap:9px}.log-title{font-size:16px}.log-body{padding:0 20px 22px}.reviews{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.postcard{padding:8px 8px 0}.postcard figcaption{font-size:8px;letter-spacing:.5px}.cta{margin:42px 0;padding:30px 24px}.cta h2{font-size:27px}.cta p{font-size:14px}.cta .btn{margin-top:20px}.contact-item{width:65px;min-height:60px}.footer-inner{padding-bottom:70px}.mobile-toggle{background:#0b2236;border-color:#315874}}
@media(max-width:380px){.steps{grid-template-columns:1fr}.hero h1{font-size:40px}.hero-meta span{padding-left:10px}.hero-meta b{letter-spacing:0}.actions{gap:9px}.btn{font-size:13px}.feature-copy{padding:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}