:root{color-scheme:light;--ink:#103e3d;--muted:#526964;--paper:#f8f8f1;--line:#d9e2d8;--mint:#e4efe1;--lime:#c9fe53;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;font-size:17px;line-height:1.65}a{color:inherit;text-underline-offset:.2em}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid #087c78;outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:650;line-height:1.1;letter-spacing:-.045em}h1{font-size:clamp(3.25rem,6.5vw,6.1rem)}h2{font-size:clamp(2rem,4vw,3.65rem)}h3{font-size:1.45rem;letter-spacing:-.025em}p{max-width:65ch}button,a,summary{-webkit-tap-highlight-color:transparent}.wrap{max-width:1180px;margin:auto;padding-inline:32px}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:white;z-index:3}.skip:focus{top:8px}.header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:24px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:750;text-decoration:none;letter-spacing:-.04em}.brand img{width:38px;height:38px;border-radius:10px}.nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:600}.nav a{text-decoration:none;padding-block:8px}.nav .language{border:1px solid var(--line);padding:8px 13px;border-radius:30px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.14em;text-transform:uppercase;line-height:1.5}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);align-items:center;gap:70px;padding-block:70px 80px}.hero h1{margin:20px 0 26px}.hero h1 em{font-style:normal;color:#08766a}.lead{font-size:20px;line-height:1.6;max-width:30em;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;min-height:54px;padding:13px 23px;border-radius:8px;font-weight:700;font-size:16px;text-decoration:none;background:var(--ink);color:white}.button:hover{background:#1d5450}.button .arrow{font-size:23px;font-weight:400}.text-link{font-size:15px;font-weight:650}.requirements{margin-top:18px;font-size:12px;line-height:1.6;color:var(--muted)}.hero-visual{position:relative;display:flex;justify-content:center;padding:22px 32px 0;background:var(--mint);border-radius:140px 140px 28px 28px}.hero-visual figure{max-width:285px;margin-bottom:20px}.app-shot{width:100%;border-radius:22px;box-shadow:0 20px 50px #163d3420}.caption{font-size:11px;color:var(--muted);line-height:1.45;margin-top:15px;text-align:center}.fact-strip{display:flex;justify-content:space-between;gap:24px;padding-block:23px;border-block:1px solid var(--line);font-size:14px;font-weight:600}.fact-strip span{display:flex;align-items:center;gap:10px}.fact-strip span:before{content:"";width:7px;height:7px;border-radius:50%;background:#08766a;flex-shrink:0}.section{padding-block:88px}.section-header{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:38px}.section-header h2{max-width:16ch}.section-header p{max-width:34ch;color:var(--muted)}.section .eyebrow{margin-bottom:17px;color:#08766a}.scenes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line)}.scene{padding:27px 26px 30px 0}.scene+.scene{padding-left:27px;border-left:1px solid var(--line)}.scene-number{font-size:12px;color:var(--muted);display:block;margin-bottom:27px}.scene h3{margin-bottom:21px}.phrase{font-size:18px;line-height:1.45;margin-bottom:8px}.translation{font-size:15px;color:var(--muted)}.aside-note{font-size:12px;color:var(--muted);margin-top:15px}.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:100px;align-items:center}.feature-picture{display:flex;justify-content:center;background:#e8eade;border-radius:24px;padding:35px}.feature-picture figure{max-width:230px}.feature-copy h2{margin-bottom:25px}.feature-copy p{color:var(--muted);margin-bottom:22px}.features-list{padding:0;list-style:none;margin:30px 0 0;border-top:1px solid var(--line)}.features-list li{padding:16px 0;border-bottom:1px solid var(--line);display:flex;gap:15px;font-size:15px}.features-list li:before{content:"↗";color:#08766a}.preparation{background:var(--ink);color:#f7faed;border-radius:26px;padding:54px;display:grid;grid-template-columns:1fr 1fr;gap:60px}.preparation .eyebrow{color:var(--lime)}.preparation h2{max-width:12ch;margin-bottom:25px}.preparation p{color:#d3e1d9}.preparation ol{padding:0;margin:0;list-style:none;counter-reset:steps}.preparation li{counter-increment:steps;display:grid;grid-template-columns:35px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid #ffffff26}.preparation li:first-child{padding-top:0}.preparation li:before{content:"0" counter(steps);font-size:13px;color:var(--lime);padding-top:3px}.preparation li h3{font-size:18px;letter-spacing:-.01em;margin-bottom:8px}.preparation li p{font-size:14px;line-height:1.6}.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.faq h2{max-width:12ch}.faq details{border-bottom:1px solid var(--line)}.faq summary{padding:22px 0;cursor:pointer;list-style:none;font-weight:650;display:flex;justify-content:space-between;align-items:center;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-size:25px;font-weight:400;flex-shrink:0}.faq details[open] summary:after{content:"−"}.faq details p{padding-bottom:23px;color:var(--muted);font-size:15px}.last-call{padding:48px 0;border-block:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:32px}.last-call h2{font-size:clamp(1.8rem,3vw,2.7rem)}.last-call p{color:var(--muted);margin-top:12px;font-size:15px}.footer{padding-block:30px 40px;font-size:12px;color:var(--muted)}.footer-main{display:flex;justify-content:space-between;align-items:center;gap:25px}.filing{text-align:center;margin:20px auto 0}.footer-links{display:flex;flex-wrap:wrap;gap:22px}.footer a{text-decoration:none}html[lang="zh-Hans"] h1{font-size:clamp(3rem,6vw,5.4rem);line-height:1.25;letter-spacing:-.06em}html[lang="zh-Hans"] h2{line-height:1.25;letter-spacing:-.035em}html[lang="zh-Hans"] .eyebrow{letter-spacing:.1em}
.last-call .button{flex-shrink:0}
@media(max-width:850px){.hero{gap:35px;padding-top:48px}.hero-visual{padding-inline:20px}.feature{gap:45px}.preparation{padding:35px;gap:35px}.faq{gap:40px}.nav .optional{display:none}.fact-strip{font-size:12px;gap:15px}.section{padding-block:65px}}
@media(max-width:620px){.wrap{padding-inline:22px}.header{padding-block:18px}.nav{gap:15px}.nav .secondary{display:none}.hero{grid-template-columns:1fr;padding-block:46px 38px;gap:38px}.hero h1{font-size:clamp(2.75rem,10vw,3.5rem)}.hero .lead{font-size:18px}.hero-visual{max-width:340px;width:100%;margin:auto;padding:25px 30px 0}.hero-visual figure{max-width:245px}.actions{gap:16px}.button{width:100%}.hero .text-link{margin:auto}.requirements{text-align:center}.fact-strip{flex-direction:column;gap:12px}.section{padding-block:53px}.section-header{display:block;margin-bottom:25px}.section-header h2{margin-bottom:20px}.scenes{grid-template-columns:1fr}.scene,.scene+.scene{padding:24px 0;border-left:0}.scene+.scene{border-top:1px solid var(--line)}.scene-number{margin-bottom:12px}.scene h3{margin-bottom:15px}.feature{grid-template-columns:1fr;gap:33px}.feature-picture{order:2;padding:28px}.feature-picture figure{max-width:235px}.preparation{grid-template-columns:1fr;gap:30px;padding:30px 24px;border-radius:18px}.preparation h2{max-width:16ch}.faq{grid-template-columns:1fr;gap:24px}.last-call{flex-direction:column;align-items:stretch}.footer-main{flex-direction:column;align-items:flex-start;gap:18px}.footer-links{gap:17px}.caption{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}