:root {
  --blue:#1268e5;
  --blue-2:#2e86ff;
  --navy:#071f4b;
  --ink:#111b2c;
  --muted:#6e7785;
  --paper:#faf8f2;
  --line:#dfe4ea;
  --max:1280px;
}
*{box-sizing:border-box}
html{width:100%;min-width:100%;scroll-behavior:smooth;background:#fff}
body{width:100%;min-width:100%;max-width:none;margin:0;overflow-x:hidden;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
main,.site-header,.hero,.downloads,.support{width:100vw;max-width:none}
a{color:inherit;text-decoration:none}
button{font:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.site-header{position:relative;z-index:20;background:var(--paper)}
.nav-wrap{display:flex;align-items:center;width:min(calc(100% - 72px),var(--max));height:88px;margin:auto;border-bottom:1px solid rgba(32,55,83,.11)}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}
.brand>span:last-child{display:flex;flex-direction:column;gap:3px}
.brand strong{font-size:15px;letter-spacing:.02em}
.brand small{color:#8a919b;font-size:9px;letter-spacing:.12em}
.brand-shield{display:block;width:42px;height:42px;overflow:hidden;border-radius:10px;background:#1268e5;box-shadow:0 8px 18px rgba(18,104,229,.2)}
.brand-shield img{display:block;width:100%;height:100%;object-fit:cover}
.desktop-nav{display:flex;align-self:stretch;align-items:center;gap:38px;margin-left:auto;color:#303846;font-size:13px;font-weight:600}
.desktop-nav a{position:relative;height:88px;display:flex;align-items:center}
.desktop-nav a:after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:3px;background:var(--blue);transition:left .2s,right .2s}
.desktop-nav a:hover:after,.desktop-nav .is-active:after{left:0;right:0}
.desktop-nav .is-active{color:var(--blue)}
.nav-download{margin-left:34px;padding:13px 22px;border-radius:5px;color:#fff;background:var(--blue);box-shadow:0 10px 22px rgba(18,104,229,.23);font-size:13px;font-weight:700}
.menu-toggle,.mobile-menu{display:none}

.hero{position:relative;display:grid;grid-template-columns:minmax(0,.87fr) minmax(560px,1.13fr);min-height:690px;padding:70px max(36px,calc((100% - var(--max))/2)) 42px;overflow:hidden;background:radial-gradient(circle at 15% 18%,#fff 0,#fbf9f4 35%,#f3f0e8 100%)}
.hero:after{content:"";position:absolute;right:-6%;top:-12%;width:44%;height:82%;opacity:.55;background:repeating-linear-gradient(155deg,transparent 0 38px,rgba(42,105,187,.075) 39px 40px)}
.hero-copy{position:relative;z-index:5;padding-top:64px}
.eyebrow,.section-index{margin:0 0 22px;color:#8b94a0;font-size:12px;font-weight:700;letter-spacing:.12em}
.hero h1{margin:0;font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;font-size:clamp(53px,5.3vw,79px);font-weight:800;line-height:1.12;letter-spacing:-.055em}
.hero h1 span{margin-left:.12em;color:var(--blue)}
.hero-desc{max-width:455px;margin:28px 0 0;color:#5f6875;font-size:15px;line-height:1.95}
.hero-actions{display:flex;align-items:center;gap:13px;margin-top:30px}
.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 21px;border-radius:4px;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s}
.primary-button{color:#fff;background:var(--blue);box-shadow:0 13px 26px rgba(18,104,229,.22)}
.secondary-button{border:1px solid #cad2dc;background:rgba(255,255,255,.58)}
.secondary-button span{margin-left:17px;color:var(--blue)}
.primary-button:hover,.secondary-button:hover{transform:translateY(-3px);box-shadow:0 15px 25px rgba(17,36,63,.14)}
.hero-points{display:flex;gap:34px;margin:48px 0 0;padding:0;list-style:none}
.hero-points li{display:grid;grid-template-columns:31px auto;grid-template-rows:auto auto;column-gap:8px}
.point-icon{grid-row:1/3;display:grid;width:31px;height:31px;place-items:center;border:1px solid #9dc5fb;border-radius:50%;color:var(--blue)}
.hero-points strong{font-size:12px}.hero-points small{margin-top:4px;color:#9aa2ad;font-size:9px}

.hero-visual{position:relative;z-index:2;min-height:570px;perspective:1200px}
.map-paper{position:absolute;filter:drop-shadow(0 24px 24px rgba(17,50,98,.16));background:linear-gradient(145deg,#0f58be,#2f86f4 58%,#174c9a)}
.map-paper:after{content:"";position:absolute;inset:0;opacity:.43;background:repeating-linear-gradient(27deg,transparent 0 48px,rgba(255,255,255,.38) 49px 51px),repeating-linear-gradient(153deg,transparent 0 72px,rgba(212,232,255,.36) 73px 75px)}
.paper-one{left:4%;right:8%;bottom:9%;height:49%;clip-path:polygon(0 47%,22% 9%,46% 34%,67% 6%,100% 31%,91% 100%,56% 80%,29% 100%,6% 77%)}
.paper-two{right:-4%;bottom:9%;width:43%;height:63%;opacity:.34;clip-path:polygon(34% 0,100% 10%,76% 100%,0 78%)}
.paper-three{left:6%;bottom:7%;width:32%;height:32%;opacity:.28;clip-path:polygon(0 24%,73% 0,100% 78%,18% 100%)}
.road-line{position:absolute;z-index:2;height:4px;border-radius:6px;background:rgba(255,255,255,.75);box-shadow:0 0 0 2px rgba(24,97,199,.25)}
.road-line-one{right:6%;bottom:29%;width:53%;transform:rotate(-16deg)}
.road-line-two{left:10%;bottom:22%;width:43%;transform:rotate(21deg)}
.phone-frame{position:relative;overflow:hidden;padding:7px;border:1px solid #3b4c5f;border-radius:34px;background:#071321;box-shadow:0 22px 42px rgba(15,30,52,.2),inset 0 0 0 1px rgba(194,210,226,.11)}
.phone-frame img{display:block;width:100%;height:100%;object-fit:cover;object-position:top;border-radius:27px}
.phone-frame:after{display:none}
.phone-speaker{position:absolute;z-index:3;top:7px;left:50%;width:31%;height:14px;border-radius:0 0 10px 10px;background:#07111f;transform:translateX(-50%)}
.hero-phone{position:absolute;z-index:4;right:20%;bottom:5%;width:300px;height:610px;transform:rotate(7deg) rotateY(-7deg)}
.mini-car{position:absolute;z-index:5;right:2%;bottom:11%;width:73px;height:29px;border-radius:18px 24px 8px 8px;background:#f7f9fc;box-shadow:0 9px 13px rgba(21,38,58,.19)}
.mini-car:before{content:"";position:absolute;left:20px;top:-12px;width:34px;height:18px;border-radius:20px 22px 0 0;background:#d3e5fa;transform:skewX(-18deg)}
.mini-car i{position:absolute;bottom:-5px;width:13px;height:13px;border:4px solid #19283a;border-radius:50%;background:#fff}.mini-car i:first-child{left:12px}.mini-car i:last-child{right:10px}

.features{width:min(calc(100% - 72px),var(--max));margin:auto;padding:92px 0 104px;background:#fff}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:50px}
.section-heading h2,.downloads h2,.support h2{margin:0;font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;font-size:clamp(40px,4.3vw,62px);line-height:1.08;letter-spacing:-.055em}
.section-heading>p{max-width:365px;margin:0 0 7px;color:#7b8490;font-size:13px;line-height:1.9}
.feature-rule{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;margin:27px 0 34px;color:var(--blue)}
.feature-rule span{height:1px;background:#77aaf0}.feature-rule i{font-size:10px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px}
.feature-device{outline:0;cursor:zoom-in;transition:transform .25s}
.feature-device:hover{transform:translateY(-8px)}
.feature-device:focus-visible{outline:3px solid var(--blue);outline-offset:7px}
.feature-label{display:flex;align-items:center;justify-content:center;gap:13px;margin-bottom:17px;color:var(--blue)}
.feature-label b{font-size:21px;font-weight:400}.feature-label strong{font-size:16px}
.feature-device>.phone-frame{width:min(100%,276px);height:564px;margin:auto;padding:6px;border-radius:31px;box-shadow:0 18px 34px rgba(19,37,65,.16),inset 0 0 0 1px rgba(194,210,226,.1)}
.feature-device>.phone-frame img{border-radius:24px}.feature-device>.phone-frame .phone-speaker{top:6px;height:12px}
.feature-device>p{margin:17px 0 0;color:#7d8793;text-align:center;font-size:11px}

.downloads{position:relative;display:grid;grid-template-columns:.75fr 1.25fr;gap:82px;align-items:center;min-height:590px;padding:74px max(36px,calc((100% - var(--max))/2));overflow:hidden;color:#fff;background:linear-gradient(125deg,#061638,#09255c 64%,#0b326f)}
.downloads:after{content:"";position:absolute;inset:0;opacity:.21;background:linear-gradient(90deg,transparent 0 40%,rgba(31,117,255,.32)),repeating-linear-gradient(90deg,transparent 0 54px,rgba(93,158,255,.1) 55px 56px)}
.download-backdrop{position:absolute;left:0;right:42%;bottom:0;height:67%;opacity:.35;transform:perspective(680px) rotateX(58deg);transform-origin:bottom}
.download-backdrop i{position:absolute;bottom:0;width:16%;border:1px solid #2c66aa;background:linear-gradient(#153c78,#071a42);box-shadow:inset 0 0 19px rgba(49,130,244,.18)}
.download-backdrop i:nth-child(1){left:5%;height:58%}.download-backdrop i:nth-child(2){left:20%;height:81%}.download-backdrop i:nth-child(3){left:38%;height:49%}.download-backdrop i:nth-child(4){left:54%;height:72%}.download-backdrop i:nth-child(5){left:72%;height:92%}
.download-copy,.download-cards{position:relative;z-index:2}
.download-copy .section-index{color:#7eaeef}.download-copy h2{color:#fff}
.download-copy>p:not(.section-index){max-width:360px;margin:22px 0 0;color:#adc2df;font-size:14px;line-height:1.9}
.download-copy ul{display:flex;gap:24px;margin:29px 0 0;padding:0;list-style:none;color:#c8d9ef;font-size:11px}.download-copy li:before{content:"+";display:inline-grid;width:19px;height:19px;margin-right:7px;place-items:center;border:1px solid #8ab7f1;border-radius:50%}
.download-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.download-card{min-height:340px;padding:35px;border-radius:12px;display:flex;flex-direction:column;justify-content:flex-end;box-shadow:0 24px 45px rgba(0,0,0,.18);transition:transform .24s,box-shadow .24s}
.download-card:hover{transform:translateY(-8px);box-shadow:0 30px 48px rgba(0,0,0,.25)}
.android-card{background:linear-gradient(145deg,#2582ff,#0862e2)}
.ios-card{color:var(--navy);background:linear-gradient(145deg,#fff,#eef4fc)}
.download-os{font:700 11px ui-monospace,monospace;letter-spacing:.15em;opacity:.75}
.platform-icon{display:block;width:88px;height:88px;margin:auto 0 25px;overflow:hidden;border-radius:23px;filter:drop-shadow(0 10px 14px rgba(3,24,59,.18));transition:transform .24s,filter .24s}
.platform-icon img{display:block;width:100%;height:100%;object-fit:cover;transform:scale(1.2)}
.apple-icon img{transform:scale(1.24)}
.download-card:hover .platform-icon{transform:translateY(-4px) rotate(-2deg)}
.download-card:hover .platform-icon{filter:drop-shadow(0 14px 18px rgba(3,24,59,.24))}
.download-card strong{font-size:28px}.download-card p{margin:8px 0 26px;opacity:.68;font-size:12px}
.download-action{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border:1px solid currentColor;border-radius:6px;font-size:12px;font-weight:700;opacity:.9}

.support{position:relative;display:grid;grid-template-columns:.53fr 1.05fr .52fr;gap:35px;align-items:center;min-height:620px;padding:78px max(36px,calc((100% - var(--max))/2));overflow:hidden;background:linear-gradient(180deg,#7cc9ff 0,#bce6ff 52%,#4aa4ed 100%)}
.support:after{content:"";position:absolute;left:-8%;right:-8%;bottom:-78px;height:210px;border-radius:50% 50% 0 0;background:linear-gradient(180deg,#2f87d1,#1363b1);box-shadow:0 -18px 50px rgba(255,255,255,.32)}
.cloud{position:absolute;width:185px;height:62px;border-radius:50%;background:rgba(255,255,255,.56);filter:blur(2px)}
.cloud:before,.cloud:after{content:"";position:absolute;border-radius:50%;background:inherit}.cloud:before{left:28px;bottom:0;width:80px;height:80px}.cloud:after{right:24px;bottom:2px;width:101px;height:101px}
.cloud-one{left:-40px;top:52px}.cloud-two{right:-40px;top:72px;transform:scale(.72)}
.support-intro,.video-player,.contact-card{position:relative;z-index:2}
.support-intro .section-index{color:#1a66ae}.support-intro h2{color:#0b2b57}.support-intro>p:not(.section-index){margin:22px 0 0;color:#2a6594;font-size:13px;line-height:1.85}.support-intro>a{display:inline-flex;margin-top:28px;padding:13px 16px;border-radius:4px;color:#fff;background:#1268e5;font-size:12px;font-weight:700}.support-intro>a span{margin-left:22px}
.video-player{aspect-ratio:16/9;overflow:hidden;border:4px solid rgba(255,255,255,.86);border-radius:15px;background:#031128;box-shadow:0 28px 50px rgba(17,78,126,.25),inset 0 0 0 1px rgba(73,155,231,.18)}
.video-player:after{content:"";position:absolute;z-index:1;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(3,14,35,.28),transparent 32%,transparent 66%,rgba(2,10,25,.42));transition:opacity .25s}
.demo-video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#020914}
.player-tag{position:absolute;z-index:3;top:18px;left:20px;padding:7px 9px;border:1px solid rgba(201,232,255,.24);border-radius:3px;color:#e9f6ff;background:rgba(3,20,45,.34);backdrop-filter:blur(7px);font:9px ui-monospace,monospace;letter-spacing:.12em;transition:opacity .2s}
.video-start{position:absolute;z-index:4;left:50%;top:50%;display:flex;flex-direction:column;align-items:center;width:190px;padding:0;border:0;color:#fff;background:transparent;cursor:pointer;transform:translate(-50%,-45%);text-shadow:0 2px 13px rgba(0,0,0,.5)}
.video-start i{display:grid;width:72px;height:72px;padding-left:5px;place-items:center;border:2px solid #fff;border-radius:50%;background:rgba(15,79,139,.48);box-shadow:0 10px 30px rgba(0,0,0,.22),inset 0 0 0 7px rgba(255,255,255,.06);font-size:22px;font-style:normal;transition:transform .2s,background .2s}
.video-start strong{margin-top:13px;font-size:12px}.video-start small{margin-top:5px;color:#c6e2f7;font-size:9px;font-weight:500}
.video-start:hover i{background:rgba(18,104,229,.75);transform:scale(1.08)}
.video-fullscreen{position:absolute;z-index:4;right:17px;bottom:15px;width:34px;height:34px;padding:0;border:1px solid rgba(255,255,255,.48);border-radius:4px;color:#fff;background:rgba(3,20,45,.42);backdrop-filter:blur(7px);cursor:pointer}
.video-fullscreen span:before,.video-fullscreen span:after{content:"";position:absolute;width:8px;height:8px;border-color:#fff}.video-fullscreen span:before{top:9px;left:9px;border-top:2px solid;border-left:2px solid}.video-fullscreen span:after{right:9px;bottom:9px;border-right:2px solid;border-bottom:2px solid}
.video-player.is-playing:after,.video-player.is-playing .player-tag,.video-player.is-playing .video-start{opacity:0;pointer-events:none}
.video-player.is-playing .video-fullscreen{opacity:.28}.video-player.is-playing:hover .video-fullscreen,.video-player.is-playing .video-fullscreen:focus-visible{opacity:1}
.contact-card{padding:27px 25px;border:1px solid rgba(255,255,255,.8);border-radius:12px;background:rgba(255,255,255,.84);box-shadow:0 20px 35px rgba(28,99,151,.15);backdrop-filter:blur(10px)}
.qq-icon{display:grid;width:35px;height:35px;place-items:center;border-radius:50%;color:#fff;background:var(--blue);font-weight:800}.contact-card h3{margin:13px 0 20px;color:#1457a8}.contact-card p{margin:0;color:#7b92aa;font-size:10px}.contact-card strong{display:block;margin-top:5px;color:#1563c2;font-size:22px}.contact-card button,.contact-card a{display:block;width:100%;margin-top:14px;padding:11px;border:0;border-radius:5px;color:#1563c2;background:#e7f2ff;font-size:11px;font-weight:700;text-align:center;cursor:pointer}.contact-card a{margin-top:7px;background:transparent}

.site-footer{position:relative;z-index:3;display:flex;align-items:center;justify-content:space-between;width:min(calc(100% - 72px),var(--max));min-height:132px;margin:auto;padding:22px 0;border-top:1px solid #e8edf2;background:#fff}.site-footer p{color:#7c8794;font-size:10px}.site-footer>a:last-child{color:var(--blue);font-size:11px;font-weight:700}
.image-modal{position:fixed;z-index:40;inset:0;display:flex;align-items:center;justify-content:center;padding:38px;opacity:0;visibility:hidden;background:rgba(5,19,42,.9);transition:opacity .2s,visibility .2s}.image-modal.is-open{opacity:1;visibility:visible}.image-modal figure{width:min(360px,78vw);margin:0;transform:scale(.96);transition:transform .2s}.image-modal.is-open figure{transform:scale(1)}.image-modal img{display:block;width:100%;max-height:82vh;object-fit:contain;border-radius:20px;box-shadow:0 25px 60px rgba(0,0,0,.45)}.image-modal figcaption{margin-top:14px;color:#fff;text-align:center;font-size:13px}.modal-close{position:absolute;top:20px;right:26px;border:0;color:#fff;background:transparent;font-size:38px;cursor:pointer}.toast{position:fixed;z-index:50;left:50%;bottom:24px;padding:11px 15px;color:#fff;background:#102b59;font-size:13px;opacity:0;pointer-events:none;transform:translate(-50%,15px);transition:opacity .2s,transform .2s}.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:980px){.desktop-nav{gap:19px}.hero{grid-template-columns:.78fr 1.22fr}.hero-phone{right:10%}.download-cards{gap:13px}.downloads{gap:38px}.support{grid-template-columns:.55fr 1.1fr .55fr;gap:18px}.contact-card{padding:20px 17px}}
@media(max-width:720px){.nav-wrap{width:calc(100% - 32px);height:70px}.desktop-nav,.nav-download{display:none}.brand-shield{width:36px;height:36px;border-radius:9px}.brand strong{font-size:13px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:7px;width:38px;height:38px;margin-left:auto;padding:0;border:0;background:transparent}.menu-toggle i{display:block;width:22px;height:1px;background:var(--ink);transition:transform .2s}.menu-toggle.is-open i:first-of-type{transform:translateY(4px) rotate(45deg)}.menu-toggle.is-open i:last-of-type{transform:translateY(-4px) rotate(-45deg)}.mobile-menu{position:absolute;z-index:10;top:63px;left:16px;right:16px;padding:10px 18px;background:#fff;border:1px solid #dce3ea;box-shadow:0 18px 35px rgba(18,35,57,.18)}.mobile-menu.is-open{display:grid}.mobile-menu a{padding:12px 0;border-bottom:1px solid #e6ebef;font-size:13px}.mobile-menu a:last-child{border:0}
.hero{display:block;min-height:800px;padding:88px 16px 0}.hero-copy{padding-top:0}.eyebrow{font-size:10px}.hero h1{font-size:49px}.hero-desc{max-width:344px;margin-top:20px;font-size:13px}.hero-actions{margin-top:22px}.primary-button,.secondary-button{min-height:42px;padding:0 13px;font-size:11px}.hero-points{gap:12px;margin-top:27px}.hero-points li{grid-template-columns:25px auto;column-gap:6px}.point-icon{width:25px;height:25px}.hero-points strong{font-size:10px}.hero-points small{font-size:8px}.hero-visual{position:absolute;right:-35px;bottom:-20px;width:69%;min-height:400px}.hero-phone{right:17%;bottom:-5%;width:174px;height:390px;border-radius:22px;padding:5px}.hero-phone img{border-radius:17px}.phone-speaker{top:5px;height:8px}.paper-one{left:-10%;right:0;height:48%}.mini-car{right:2%;bottom:8%;transform:scale(.65)}
.features{width:calc(100% - 32px);padding:66px 0 73px}.section-heading{display:block}.section-heading h2,.downloads h2,.support h2{font-size:39px}.section-heading>p{margin-top:16px;font-size:12px}.feature-rule{margin:22px 0 30px}.feature-grid{grid-template-columns:1fr;gap:48px}.feature-device>.phone-frame{width:252px;height:535px}.feature-device>p{font-size:10px}
.downloads{display:block;min-height:820px;padding:66px 16px}.download-copy>p:not(.section-index){font-size:12px}.download-copy ul{gap:11px;font-size:9px}.download-cards{grid-template-columns:1fr 1fr;gap:11px;margin-top:48px}.download-card{min-height:300px;padding:20px 15px}.platform-icon{width:62px;height:62px;margin-bottom:20px;border-radius:17px}.download-card strong{font-size:20px}.download-card p{font-size:10px}.download-action{padding:11px 10px;font-size:10px}
.support{display:block;min-height:0;padding:66px 16px 76px}.support-intro>p:not(.section-index){max-width:320px;font-size:12px}.video-player{margin-top:38px}.player-tag{top:12px;left:12px}.video-start i{width:62px;height:62px}.video-start small{display:none}.video-fullscreen{display:none}.contact-card{width:100%;margin-top:16px;padding:21px}.cloud-two{display:none}.site-footer{width:calc(100% - 32px);min-height:158px;padding:24px 0;flex-wrap:wrap;align-content:center;gap:10px}.site-footer p{order:3;flex-basis:100%;margin:0;line-height:1.65}.site-footer .brand small{display:none}.image-modal{padding:20px}.modal-close{right:13px;top:10px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}