:root{--ink:#14234f;--body:#536079;--cyan:#00bdc8;--blue:#445ad7;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:#fff;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #193984;outline-offset:6px}img{max-width:100%;vertical-align:middle}.shell{width:min(1224px,calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;left:20px;top:-100px;z-index:20;padding:12px 18px;background:#fff;box-shadow:0 2px 20px #17315c22}.skip-link:focus{top:12px}.site-header{height:112px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:2}.brand{display:inline-flex;align-items:center}.brand img{width:184px;height:auto}.site-header nav{display:flex;gap:38px;font-size:16px;font-weight:550}.site-header nav a{padding:12px 0;text-underline-offset:7px}.hero{position:relative;min-height:682px;isolation:isolate}.hero-copy{position:relative;z-index:1;width:550px;max-width:49%;padding-top:55px;padding-bottom:76px}.hero h1{margin:0 0 38px;font-size:clamp(60px,6.2vw,88px);font-weight:900;letter-spacing:-.035em;line-height:1.25;font-style:italic;-webkit-text-stroke:1px currentColor}.hero h1 span,.hero h1 strong{display:block;white-space:nowrap}.hero h1 span{color:var(--cyan)}.hero h1 strong{font-weight:900}.product-name{margin:0 0 13px;font-size:29px;font-weight:600;letter-spacing:.02em}.hero-description{font-size:19px;line-height:1.85;color:#65718b;margin:0}.download-area{margin-top:40px;width:max-content;max-width:100%}.download-button{display:flex;align-items:center;justify-content:center;gap:16px;min-width:366px;min-height:66px;padding:16px 28px;border-radius:50px;background:linear-gradient(110deg,#08c9d2,#3163f3 76%,#5346e9);color:#fff;font-size:21px;font-weight:650;box-shadow:0 8px 24px #3475e32b;transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s}.download-button img{flex:none;filter:brightness(0) invert(1);width:27px;height:27px}.download-button[aria-busy=true]{opacity:.75;cursor:progress}.download-button:active{transform:translateY(1px) scale(.985)}.download-note{font-size:14px;line-height:1.6;color:#697995;text-align:center;margin:16px 0 0}.hero-art{position:absolute;z-index:0;width:780px;max-width:66%;right:-55px;top:-105px;margin:0;pointer-events:none}.hero-art img{width:100%;height:auto;display:block}.start-section{position:relative;padding:30px 0 48px;background:linear-gradient(180deg,#fff 55%,#f7fcff)}.start-section h2{text-align:center;margin:0 0 32px;font-weight:850;font-size:46px;line-height:1.3;font-style:italic;letter-spacing:-.025em}.start-section h2 span{color:#04b9cb}.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:34px;max-width:1000px;margin:0 auto;padding:25px 0 0;position:relative;background:url(flow.webp) center -122px/100% auto no-repeat}.steps li{text-align:center;padding:0 20px}.step-icon{display:flex;width:58px;height:58px;align-items:center;justify-content:center;margin:0 auto 18px;border-radius:50%;background:linear-gradient(135deg,#09cbd4,#4382f4)}.step-icon img{filter:brightness(0) invert(1)}.steps h3{font-size:18px;font-weight:600;margin:0 0 11px}.steps p{font-size:15px;line-height:1.8;color:#63718b;margin:0}.steps a{display:inline-block;margin-top:10px;font-size:14px;color:#2859b8;text-decoration:underline;text-underline-offset:5px}.download-help{text-align:center;color:#69758b;font-size:14px;line-height:1.8;margin:36px 0 0}.site-footer{padding:30px 0 34px;text-align:center;font-size:13px;color:#5d6881}.site-footer nav{display:flex;justify-content:center;flex-wrap:wrap;gap:22px;line-height:2}.site-footer p{margin:14px 0 0;line-height:1.8;font-size:12px}.vac-float{position:fixed;right:20px;bottom:calc(20px + var(--vac-chat-bottom,0px) + env(safe-area-inset-bottom,0px));z-index:2147482999;display:flex;flex-direction:column;align-items:center;gap:16px}.vac-chat{position:relative;display:none;flex:none;align-items:center;justify-content:center;width:56px;height:56px;padding:0;border:0;border-radius:50%;background:var(--blue);box-shadow:0 4px 18px #2145a533;cursor:pointer;transition:transform .18s var(--ease)}:root[data-vac-chat=ready] .vac-chat{display:flex}.vac-chat img{filter:brightness(0) invert(1)}.vac-chat:active{transform:scale(.96)}.vac-chat-unread{position:absolute;right:-2px;top:-2px;min-width:20px;padding:0 5px;border-radius:20px;line-height:20px;background:#dc2854;color:#fff;font-size:12px}.vac-chat-unread:empty{display:none}.legal-main{max-width:850px;margin:20px auto 50px;padding:0 32px}.back-link{display:inline-block;color:#255eb6;text-decoration:underline;text-underline-offset:5px;line-height:1.8}.legal-toc{margin:28px 0;border-block:1px solid #dce7f0;padding:18px 0;font-size:15px}.legal-toc summary{cursor:pointer;min-height:24px}.legal-toc ol{margin:18px 0 4px;padding-left:24px;line-height:1.8}.legal-toc li{margin-bottom:8px}.legal-toc a{color:#235eb5}.legal-copy{font-family:system-ui,sans-serif;line-height:1.85;color:#37425a;font-size:16px;overflow-wrap:anywhere}.legal-copy h1{font-size:32px;line-height:1.3;color:var(--ink);margin:32px 0 24px}.legal-copy h2{font-size:23px;line-height:1.4;margin:40px 0 16px;color:var(--ink);scroll-margin-top:24px}.legal-copy p{margin:0 0 16px}.legal-copy a{color:#205eb8;text-decoration:underline;text-underline-offset:3px}.legal-return{margin-top:24px}.legal-page .site-footer{border-top:1px solid #e8eef5}
@media(hover:hover) and (pointer:fine){.download-button:hover{transform:translateY(-3px);box-shadow:0 13px 27px #3475e33d;filter:saturate(1.12)}.site-header nav a:hover,.site-footer a:hover,.legal-toc a:hover{color:#0b7aa2;text-decoration:underline}.vac-chat:hover{transform:translateY(-2px)}}
@media(min-width:1550px){.hero-art{right:-90px;width:840px;max-width:70%;top:-110px}.hero{min-height:720px}}
@media(max-width:1050px){.shell{width:calc(100% - 64px)}.hero-copy{max-width:52%;padding-top:50px}.hero h1{font-size:60px;letter-spacing:-.045em}.product-name{font-size:25px}.hero-description{font-size:17px}.download-button{min-width:310px;font-size:18px}.hero-art{max-width:65%;right:-25px;top:-15px}.hero{min-height:615px}.start-section h2{font-size:40px}}
@media(max-width:700px){html{scroll-padding-top:20px}.shell{width:calc(100% - 44px)}.site-header{height:84px}.brand img{width:145px}.site-header nav{gap:16px;font-size:13px}.site-header nav a:first-child{display:none}.hero{min-height:0;display:flex;flex-direction:column}.hero-copy{max-width:100%;width:100%;padding:24px 0 0}.hero h1{font-size:clamp(42px,10.8vw,67px);line-height:1.22;letter-spacing:-.03em;margin-bottom:24px;-webkit-text-stroke:.6px currentColor}.product-name{font-size:21px;margin-bottom:10px}.hero-description{font-size:16px;line-height:1.75}.download-area{margin-top:24px;width:100%}.download-button{width:100%;min-width:0;min-height:58px;font-size:18px;padding:14px 20px;gap:12px}.download-button img{width:25px;height:25px}.download-note{font-size:13px;margin-top:12px}.hero-art{position:relative;align-self:center;width:calc(100% + 44px);max-width:none;right:auto;top:auto;margin:16px -22px 0;z-index:0}.start-section{padding:10px 0 38px}.start-section h2{font-size:clamp(26px,7vw,38px);text-align:left;margin:0 0 24px}.steps{display:block;padding:0;background:none}.steps li{text-align:left;position:relative;padding:0 0 26px 78px;min-height:104px}.steps li:last-child{padding-bottom:0}.step-icon{position:absolute;left:0;top:0;width:52px;height:52px;margin:0}.steps h3{font-size:19px;padding-top:0;margin-bottom:8px}.steps p{font-size:16px;line-height:1.7}.steps p br{display:none}.steps a{font-size:15px}.download-help{text-align:left;margin-top:24px;font-size:14px;max-width:95%}.site-footer{padding:24px 0 80px}.site-footer nav{gap:16px;font-size:13px}.site-footer p{font-size:11px}.vac-float{right:16px;bottom:calc(16px + var(--vac-chat-bottom,0px) + env(safe-area-inset-bottom,0px))}.vac-chat{width:52px;height:52px}.legal-main{padding:0 22px;margin-top:16px}.legal-copy h1{font-size:28px}.legal-copy h2{font-size:22px}.legal-page .site-header nav{gap:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.download-button,.vac-chat{transition:box-shadow .15s,filter .15s}.download-button:hover,.download-button:active,.vac-chat:hover,.vac-chat:active{transform:none}}