:root{--paper:#faf8f4;--ink:#393241;--muted:#736a7c;--purple:#786187;--line:#e4dce8;--lavender:#eee8f2}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:5px}a:hover{color:#765493}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--purple);outline-offset:6px}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-weight:400}h1,h2{font-family:"Songti SC","STSong","Noto Serif CJK SC",serif}h1{font-size:clamp(40px,4.9vw,68px);line-height:1.4;letter-spacing:.04em}h2{font-size:34px;line-height:1.55}h3{font-size:21px}p{color:var(--muted)}.site-header,.site-footer,main{width:min(1160px,calc(100% - 100px));margin:auto}.site-header{height:112px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:11px;align-items:center;text-decoration:none;font-size:19px;letter-spacing:.13em;line-height:1.4}.brand small{display:block;font-size:9px;letter-spacing:.25em;margin-top:5px}.site-header nav{display:flex;gap:35px;font-size:13px}.site-header nav a{text-decoration:none}.site-header [aria-current]{color:var(--purple);border-bottom:1px solid}.eyebrow{font-size:10px;letter-spacing:.23em;color:var(--purple);font-weight:600;margin-bottom:23px}.hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;min-height:725px;padding:30px 0 58px;gap:30px}.hero-copy{position:relative;z-index:1}.hero h1{margin-bottom:17px}.hero h1 span{color:var(--purple)}.english{font:italic 23px Georgia,serif;color:var(--purple);margin-bottom:30px}.intro{line-height:2.1;margin-bottom:30px}.button{display:inline-flex;align-items:center;justify-content:center;gap:36px;background:var(--purple);color:white;text-decoration:none;border:0;border-radius:50px;padding:15px 27px;font:inherit;font-size:14px}.button:hover{background:#655073;color:white}.button:disabled{background:#e4dce9;color:#685775;cursor:default}.micro{font-size:11px;margin-top:17px;letter-spacing:.08em}.hero-art{position:relative;display:flex;align-items:center;justify-content:center;min-width:0;isolation:isolate}.hero-art:before{content:"";position:absolute;inset:14% -5% 1%;background:radial-gradient(ellipse,#ddd4ee88,transparent 68%);z-index:-1}.hero-art img{width:min(100%,410px);height:auto}.orbit{position:absolute;inset:11% 0 4%;border:1px solid #d7cadd66;border-radius:50% 50% 46% 46%;z-index:-1;transform:rotate(12deg)}.art-note{position:absolute;bottom:0;font-size:8px;letter-spacing:.23em;color:#897990}.section{padding:85px 0;border-top:1px solid var(--line)}.section-heading{text-align:center}.section-heading h2{margin-bottom:13px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin-top:50px}.features article{position:relative}.features img{display:block;object-fit:contain;margin-bottom:22px}.number{font-size:9px;letter-spacing:.15em;color:var(--purple)}.features h3{margin:13px 0}.features p{font-size:14px;line-height:2}.growth{text-align:center;background:radial-gradient(ellipse,#ede6f455,transparent 70%)}.growth h2{font-size:40px;line-height:1.75}.growth em{font-style:normal;color:var(--purple)}.download{text-align:center;padding:75px 20px 85px;background:#f0ebf3;border-radius:180px 180px 0 0;margin:15px 0 80px}.download h2{font-size:32px}.site-footer{padding:38px 0 24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;font-size:12px}.footer-brand{font:20px Georgia,"Songti SC",serif;text-decoration:none}.site-footer p{margin-top:10px}.site-footer nav{display:flex;gap:22px;align-items:flex-start;flex-wrap:wrap}.site-footer nav a{text-decoration:none}.copyright{width:100%;display:flex;justify-content:space-between;color:#807486;font-size:10px;padding-top:20px}.copyright a{text-decoration:none}.skip{position:absolute;top:-100px;background:var(--paper);padding:12px;z-index:5}.skip:focus{top:0}.support-hero{padding:74px 0 52px;border-bottom:1px solid var(--line)}.support-hero h1{font-size:44px;margin-bottom:13px}.support-hero>p:not(.eyebrow){font-size:18px}.quick-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}.quick-links a{font-size:12px;padding:8px 17px;border:1px solid var(--line);border-radius:30px;text-decoration:none}.quick-links a:hover{background:var(--lavender)}.support-layout{display:grid;grid-template-columns:235px 1fr;gap:85px;padding:60px 0 85px}.support-layout aside h2{font-size:24px}.support-layout aside p{font-size:13px}.support-layout aside>a{font-size:12px}.support-content h2{font-size:29px;margin-bottom:22px}.support-content .eyebrow{margin-bottom:12px}.support-content details{border-bottom:1px solid var(--line)}summary{cursor:pointer;padding:20px 28px 20px 0;font-size:16px;position:relative;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:2px;color:var(--purple)}details[open] summary:after{content:"−"}details>div{padding:0 24px 19px 0;font-size:14px}details p:last-child{margin-bottom:0}.help-section{margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}.help-section p,.help-section li{font-size:14px}.help-section ol{padding-left:22px;color:var(--muted)}.resource-links{border-top:1px solid var(--line);margin:24px 0}.resource-links a{display:flex;justify-content:space-between;text-decoration:none;border-bottom:1px solid var(--line);padding:13px 0;font-size:14px;color:var(--purple)}.small{font-size:12px!important}.contact{padding:30px;background:var(--lavender);border-radius:5px;border:0}.wechat{margin:25px 0;display:flex;flex-direction:column}.wechat span{font-size:12px;color:var(--muted)}.wechat strong{font:26px Georgia,serif;color:var(--purple);letter-spacing:.025em}
@media(min-width:1500px){.hero{min-height:800px}}@media(max-width:900px){.site-header,.site-footer,main{width:calc(100% - 48px)}.hero{min-height:650px;gap:0}.features{gap:25px}.features h3{font-size:18px}.support-layout{grid-template-columns:190px 1fr;gap:35px}.hero h1{font-size:43px}.hero-art img{width:100%}}@media(max-width:600px){.site-header,.site-footer,main{width:calc(100% - 40px)}.site-header{height:87px}.brand{font-size:16px;gap:7px}.site-header nav{gap:18px;font-size:12px}.brand img{width:29px;height:29px}.hero{grid-template-columns:1fr;padding:50px 0 38px;text-align:center}.hero h1{font-size:43px}.hero .eyebrow{font-size:9px}.english{font-size:21px}.intro{font-size:14px}.hero-art{margin:10px auto 0;width:88%;max-width:330px}.hero-art img{max-height:430px;width:auto;max-width:100%}.hero-art .orbit{inset:12% 0 4%}.art-note{font-size:7px}.section{padding:55px 0}h2,.section-heading h2{font-size:27px}.section-heading>p:last-child{font-size:13px}.features{grid-template-columns:1fr;gap:28px;margin-top:30px}.features article{padding:8px 0 20px 86px;border-bottom:1px solid var(--line)}.features article:last-child{border:0}.features img{position:absolute;left:-5px;top:11px;width:74px;height:74px}.features h3{font-size:19px;margin-top:7px}.features p{font-size:13px;margin-bottom:0}.growth h2{font-size:29px}.growth>p:last-child{font-size:13px}.download{border-radius:100px 100px 0 0;margin-bottom:45px;padding:65px 14px 45px}.download h2{font-size:25px}.download .eyebrow{font-size:8px}.site-footer{flex-direction:column}.site-footer nav{gap:18px;font-size:11px}.copyright{gap:8px;flex-wrap:wrap}.support-hero{padding:45px 0 35px}.support-hero h1{font-size:30px}.support-hero>p:not(.eyebrow){font-size:15px}.quick-links{gap:9px}.quick-links a{font-size:11px;padding:7px 12px}.support-layout{grid-template-columns:1fr;gap:38px;padding-top:30px}.support-layout aside{border-bottom:1px solid var(--line);padding-bottom:25px}.support-content h2{font-size:26px}summary{font-size:15px}.contact{padding:24px}.help-section{margin-top:40px;padding-top:30px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* Bilingual navigation and English typography. */
.site-header{gap:24px}.site-header>nav{margin-left:auto}.language-switch{display:flex;align-items:center;gap:9px;font-size:11px;white-space:nowrap;border-left:1px solid var(--line);padding-left:23px}.language-switch a{text-decoration:none;color:var(--muted);padding:7px 2px}.language-switch a[aria-current]{color:var(--ink);font-weight:600}.language-switch>span{color:#afa2b6}html[lang=en] h1,html[lang=en] h2{font-family:Georgia,"Times New Roman",serif;letter-spacing:-.025em}html[lang=en] .hero h1{font-size:clamp(44px,4.7vw,65px);line-height:1.12;margin-bottom:24px}html[lang=en] .hero .english{font-size:20px}html[lang=en] .hero .intro{max-width:445px}html[lang=en] .features h3{line-height:1.5}html[lang=en] .support-hero h1{letter-spacing:-.03em}html[lang=en] .support-content summary{line-height:1.65}html[lang=en] .copyright{letter-spacing:0}
@media(max-width:600px){.site-header{flex-wrap:wrap;height:auto;min-height:102px;padding:18px 0;gap:8px 14px}.site-header>nav{gap:18px}.language-switch{width:100%;justify-content:flex-end;border:0;padding:0;line-height:1.2;margin-top:-3px}.language-switch a{padding:6px 3px}html[lang=en] .hero h1{font-size:46px}html[lang=en] .hero .intro{font-size:14px}html[lang=en] .brand{font-size:17px;letter-spacing:.04em}html[lang=en] .brand small{font-size:7px;letter-spacing:.16em}html[lang=en] .site-header nav{font-size:12px;gap:16px}html[lang=en] .support-hero h1{font-size:35px}html[lang=en] .growth h2{font-size:30px}html[lang=en] .download h2{font-size:29px}html[lang=en] .quick-links a{padding:7px 10px}}