:root{color-scheme:dark;--bg:#08162a;--fg:#f2f7ff;--muted:#b0bfd3;--cyan:#59d9ff;--line:#26394e}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,select{font:inherit}img{display:block;max-width:100%;height:auto}.wrap{width:min(1200px,calc(100% - 80px));margin:auto}.header{height:106px;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:750;line-height:1.2;white-space:nowrap}.brand img{border-radius:10px}.brand-small{display:block;font-size:8px;letter-spacing:2.2px;margin-top:7px;color:var(--muted)}nav{display:flex;gap:28px;margin-left:auto;font-size:14px}nav a:hover,.text-link:hover,footer a:hover{color:var(--cyan)}.language select{background:transparent;color:var(--fg);border:0;padding:6px;cursor:pointer}.language option{background:var(--bg)}.button{display:inline-flex;justify-content:center;align-items:center;border-radius:7px;background:var(--cyan);color:#072335;font-weight:700;padding:16px 25px;transition:background .2s}.button:hover{background:#a3ebff}.button.small{font-size:13px;padding:12px 16px}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:75px;padding-top:62px;padding-bottom:64px;align-items:center}.eyebrow{font-size:11px;letter-spacing:2.2px;font-weight:650;color:var(--cyan);margin:0 0 30px}.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--cyan);margin-right:7px}h1{font-size:clamp(48px,5.7vw,78px);line-height:1.12;letter-spacing:-3px;margin:0 0 28px;font-weight:750}h1 span,h2 span{color:var(--cyan)}.intro{max-width:450px;font-size:18px;line-height:1.8;color:var(--muted)}.actions{display:flex;gap:25px;align-items:center;margin-top:35px}.text-link{font-size:14px;font-weight:600}.hero-notes{display:flex;gap:20px;font-size:12px;color:var(--muted);margin-top:25px}.hero-notes span:before{content:'✓';margin-right:7px;color:var(--cyan)}.hero-bottom{display:flex;gap:22px;margin-top:62px;align-items:center}.index{font-size:12px;color:var(--cyan);border-top:1px solid var(--cyan);padding-top:8px}.hero-bottom p{font-size:14px;line-height:1.5;color:var(--muted)}figure{margin:0}.hero-art{max-width:390px;justify-self:end;position:relative}.hero-art img{border-radius:16px;border:1px solid #254c78;box-shadow:0 25px 70px #0005}.hero-art figcaption,.ice-art figcaption{font-size:10px;color:var(--muted);text-align:center;margin-top:12px}.band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#0c1e34}.band .wrap{display:flex;justify-content:space-between;gap:20px;padding-top:22px;padding-bottom:22px;font-size:11px;letter-spacing:2px}.band span:nth-child(even){color:var(--cyan)}.section{padding-top:110px;padding-bottom:110px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:50px;margin-bottom:55px}.experience .section-head{display:block}h2{font-size:clamp(34px,4vw,52px);line-height:1.2;letter-spacing:-1.5px;margin:0}h3{font-size:21px;line-height:1.4;margin:0 0 12px}.experience-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:100px;align-items:center}.ice-art{max-width:325px}.ice-art img{border-radius:12px}.feature-list article{display:flex;gap:25px;padding:30px 0;border-bottom:1px solid var(--line)}.feature-list article>span{font-size:12px;color:var(--cyan);padding-top:5px}.feature-list p{color:var(--muted);margin:0;max-width:450px}.compatibility{margin-top:30px;padding:25px;border-left:2px solid var(--cyan);background:#10263e}.compatibility>span{font-size:25px;color:var(--cyan)}.compatibility p{font-size:13px;margin:8px 0 18px}.start{background:#eaf4ff;color:#0c2946}.start .eyebrow{color:#126890}.start .section-head p{max-width:345px;color:#4a6077}.steps{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:0;margin:0;gap:50px}.steps li{border-top:1px solid #a1bbd3;padding-top:25px}.steps span{color:#1476a8;font-size:12px}.steps h3{margin-top:24px}.steps p{color:#4a6077;font-size:15px}.download{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.download p:not(.eyebrow){color:var(--muted);max-width:430px;margin-top:25px}.download-links>a:not(.all-downloads){display:flex;gap:20px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.download-links>a:hover strong{color:var(--cyan)}.store-icon{width:44px;height:44px;display:grid;place-items:center;border:1px solid #46617d;border-radius:11px;font-size:23px}.download-links small{display:block;font-size:9px;letter-spacing:1.6px;color:var(--muted)}.download-links strong{font-size:23px;font-weight:600}.download-links>a>span:last-child{margin-left:auto;color:var(--cyan)}.all-downloads{display:block;margin-top:25px;font-size:13px;color:var(--cyan)}.support{border-top:1px solid var(--line);padding:55px 0 65px;display:flex;align-items:center;gap:35px;justify-content:space-between}.support h2{font-size:30px}.support .eyebrow{margin-bottom:20px}.support p:not(.eyebrow){font-size:14px;color:var(--muted);max-width:560px}.support>a{font-size:18px;white-space:nowrap;border-bottom:1px solid var(--cyan);padding-bottom:10px}.support>a span{margin-left:15px;color:var(--cyan)}footer{display:flex;align-items:center;gap:28px;border-top:1px solid var(--line);padding-top:28px;padding-bottom:30px;font-size:11px;color:var(--muted)}footer .brand{margin-right:auto;font-size:15px;color:var(--fg)}.skip{position:absolute;left:15px;top:-100px;background:var(--cyan);color:#062035;padding:10px;z-index:10}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}:focus-visible{outline:3px solid #f5ce6a;outline-offset:5px}@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.header{gap:18px}nav{gap:16px}.hero{gap:35px}h1{font-size:58px}.actions{align-items:flex-start;flex-direction:column;gap:18px}.experience-grid{gap:50px}.download{gap:50px}.support{flex-direction:column;align-items:flex-start}}@media(max-width:680px){.wrap{width:calc(100% - 40px)}.header{height:82px;gap:12px}.header nav{display:none}.brand{font-size:16px}.brand-small{font-size:6px}.brand img{width:32px;height:32px}.language{margin-left:auto}.button.small{padding:10px;font-size:11px}.hero{grid-template-columns:1fr;padding-top:45px;gap:40px}.hero h1{font-size:54px;letter-spacing:-2px}.hero-art{justify-self:center;max-width:350px;width:100%}.hero-bottom{display:none}.hero-notes{gap:14px;font-size:11px}.hero .intro{font-size:16px}.actions{flex-direction:row;align-items:center;gap:20px}.button{font-size:13px;padding:14px 18px}.text-link{font-size:12px}.band .wrap{font-size:8px;letter-spacing:1px;gap:10px}.band span:nth-child(even){display:none}.section{padding-top:65px;padding-bottom:65px}.section-head{display:block;margin-bottom:30px}.experience-grid,.download{grid-template-columns:1fr;gap:35px}.ice-art{max-width:280px;margin:auto}.feature-list article{padding:24px 0}.steps{grid-template-columns:1fr;gap:22px}.steps h3{margin-top:14px}.steps li{padding-top:18px}.download-links{margin-top:0}.support h2{font-size:28px}.support>a{font-size:16px}footer{flex-wrap:wrap;gap:20px}footer .brand{width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
.button.small{white-space:nowrap}
@media(max-width:380px){.header .brand-small{display:none}.header .brand{font-size:14px;gap:7px}.header{gap:7px}.header .button.small{font-size:10px;padding:9px 7px}.hero h1{font-size:46px}.actions{gap:15px}.actions .text-link{font-size:11px}}
/* Dedicated panoramic city-route background inspired by the owner's artwork, with a readable foreground. */
body{background:#111e38;isolation:isolate}
body::before{content:"";position:fixed;inset:-18px;z-index:-2;background:url('/images/city-route-background.jpg') center center/cover no-repeat;filter:blur(8px) saturate(.9);transform:scale(1.04);pointer-events:none}
body::after{content:"";position:fixed;inset:0;z-index:-1;background:linear-gradient(105deg,#07152bb8 0%,#0b1f3a88 45%,#0b1a3440 100%);pointer-events:none}
.header{border-color:#d3eaff1a}.brand{letter-spacing:-.6px;font-size:21px}.brand-small{color:#c4dbf2;letter-spacing:2.8px;font-weight:500}
.hero-art img{border:1px solid #b2ddff35;box-shadow:0 35px 90px #030e314d,0 0 90px #64acff22;border-radius:22px}
.band{background:#b8dbff08;border-color:#d5e8ff1c;backdrop-filter:blur(20px)}
.feature-list article{border-color:#d3eaff24}.compatibility{background:#cce5ff0a;border:1px solid #d3eaff26;border-radius:18px;backdrop-filter:blur(18px)}
.start{position:relative;isolation:isolate;overflow:hidden;background:#dbeafd10;color:var(--fg);border-block:1px solid #d3eaff20}
.start::before{content:"";position:absolute;inset:-70px;z-index:-2;background:url('/images/city-route-background.jpg') center 65%/cover;filter:blur(12px);opacity:.6}
.start::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(110deg,#132c53c7,#183761ab)}
.start .eyebrow,.steps span{color:#a0eaff}.start .section-head p,.steps p{color:#d0deef}.steps li{border-color:#d3eaff38}
.download-links>a:not(.all-downloads){border-color:#d3eaff26}.store-icon{background:#e0f3ff0b;border-color:#badfff38;border-radius:14px}
.support,footer{border-color:#d3eaff26}.button{background:linear-gradient(120deg,#a0e9ff,#78bfff);box-shadow:0 7px 28px #477dff20;border:1px solid #def7ff60;border-radius:12px}.button:hover{background:linear-gradient(120deg,#c2f2ff,#9dd2ff)}
@media(max-width:680px){body::before{filter:blur(6px);inset:-15px;background-position:62% center}.header .brand{font-size:18px}.brand-small{font-size:6px}.hero-art img{border-radius:18px}.header{gap:10px}.header .button.small{font-size:11px}}
@media(prefers-reduced-transparency:reduce){body::before,.start::before{display:none}.band,.compatibility,.start{background:#172b48}}
/* Soft poster edges merge the portrait artwork into the panoramic background. */
.hero-art,.ice-art{isolation:isolate;position:relative;--poster:url('/images/journey-vi.jpg')}
.ice-art{--poster:url('/images/ice-vi.jpg')}
html[lang="en"] .hero-art{--poster:url('/images/journey-en.jpg')}
html[lang="en"] .ice-art{--poster:url('/images/ice-en.jpg')}
html[lang="zh-Hans"] .hero-art{--poster:url('/images/journey-zh.jpg')}
html[lang="zh-Hans"] .ice-art{--poster:url('/images/ice-zh.jpg')}
.hero-art::before,.ice-art::before{content:"";position:absolute;inset:2% 1% 6%;z-index:-1;background:var(--poster) center/100% 100% no-repeat;filter:blur(22px);opacity:.6;pointer-events:none}
.hero-art img,.ice-art img{border:0;border-radius:0;box-shadow:none;-webkit-mask-image:linear-gradient(to right,transparent,#000 7%,#000 93%,transparent),linear-gradient(to bottom,transparent,#000 4%,#000 94%,transparent);-webkit-mask-composite:source-in;mask-image:linear-gradient(to right,transparent,#000 7%,#000 93%,transparent),linear-gradient(to bottom,transparent,#000 4%,#000 94%,transparent);mask-composite:intersect}
@media(prefers-reduced-transparency:reduce){.hero-art::before,.ice-art::before{display:none}}
/* Current blue app identity and recognizable download platforms. */
.brand img{flex:none;border-radius:10px;object-fit:contain}.header .brand{gap:11px}
.store-icon{background:transparent;border:0;border-radius:0;flex:none}.store-icon img{width:40px;height:40px;object-fit:contain}
@media(max-width:680px){.header .brand{font-size:15px;gap:8px}.header .brand img{width:32px;height:32px}.header .brand-small{font-size:5px;letter-spacing:1.8px}.header .button.small{padding:10px 9px;font-size:10px}.header{gap:8px}}
@media(max-width:380px){.header .brand{font-size:13px}.header .brand img{width:28px;height:28px}.header .brand-small{display:none}.header .language select{padding:3px}}