/* Shared design system: 2026-09-28 */
:root{--font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--ink:#172725;--muted:#566561;--teal:#0f5c5a;--blue:#0f5c5a;--bg:#f3f5f4;--mint:#e3f0ec;--line:#dce4e1;--shadow:0 8px 28px rgba(17,38,32,.045)}
body{font-family:var(--font);font-size:16px;line-height:1.65}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}
.wrap{width:100%;max-width:1200px;margin-inline:auto;padding-inline:32px}img{max-width:100%}h1,h2,h3{line-height:1.35;text-wrap:balance}p{overflow-wrap:break-word}
.logo small,.tagline,.badge,.eyebrow,.incl .n,.toc b,h2 .no,.step .n{font-family:var(--font)!important;letter-spacing:.04em;line-height:1.6}
.logo small{font-size:11px;letter-spacing:.08em}.logo{white-space:nowrap}.nav{background:rgba(243,245,244,.96);border-bottom:1px solid var(--line)}.navlinks{gap:24px}.navlinks a{white-space:nowrap;padding-block:10px}.navlinks .nav-cta{padding:10px 20px;background:var(--teal)}
.hero{padding:144px 32px 48px}.hero h1{font-size:48px;line-height:1.3;margin:20px 0}.hero p{font-size:17px;line-height:1.85;max-width:660px;margin:0 0 28px}.hero h1 em{background:none;color:var(--teal);-webkit-text-fill-color:var(--teal)}.article .hero{padding-inline:0}.badge{font-size:12px;font-weight:600;box-shadow:none}
section,section.block{padding:32px 0}.sec-head{margin-bottom:28px}.sec-head h2{font-size:32px;line-height:1.4;margin:10px 0}.sec-head p{font-size:16px;line-height:1.8}.sec-head .eyebrow{font-size:12px}.plans,.steps3,.feat3,.trust,.incl,.why,.two{gap:24px}.plans{margin:0 0 24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.plan .body{padding:24px;min-width:0}.plan .img{height:208px;padding:24px}.plan .img img{width:100%;max-width:100%;height:160px;object-fit:contain}.plan h2,.plan h3{font-size:23px;min-height:64px;line-height:1.4;margin:0 0 12px}.plan .sub{min-height:72px;font-size:15px;line-height:1.6}.plan .tagline{min-height:22px;font-size:12px}.plan li{font-size:14px}.plan .price{font-size:13px;margin-top:auto}.plan .price b{font-size:19px}
.btn,.cta .btn{min-height:48px;font-family:var(--font);font-size:14px;line-height:1.4;padding:13px 20px;border-radius:999px;text-align:center}.btn.primary{box-shadow:none}.btn.light{box-shadow:none;border:1px solid var(--line)}.cta{gap:12px}.plan .cta{display:grid;grid-template-columns:1fr 1fr}.plan .cta .btn{padding:12px 8px}.actions .btn{flex:none}.step,.feat,.incl .item,.why .w,.trust .t,.two .c{padding:28px}.step p,.feat p,.incl span,.why .w span,.trust .t span,.two .c li{font-size:15px;line-height:1.85}
.pdp{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start}.pdp .img{padding:32px}.pdp .img img#mainImg{width:100%;height:320px;object-fit:contain}.pdp h1{font-size:36px}.pdp .sub{font-size:16px}.thumbs img{width:60px;height:60px}.faq{max-width:none;width:100%}.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;line-height:1.65}.faq summary::after{float:none;flex:none}.faq p{font-size:15px}
.article{max-width:920px}.article h2{line-height:1.5}.article p.body,.article .lede{font-size:16px;line-height:1.9}.article table{line-height:1.8}.table-scroll{overflow-x:auto;border-radius:18px;margin:16px 0 24px}.table-scroll table{margin:0;min-width:540px}.compare-table{width:100%;border-collapse:collapse;background:#fff;line-height:1.8}.compare-table th,.compare-table td{padding:20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.compare-table th{color:var(--teal);background:var(--mint)}.compare-table a{color:var(--teal);font-weight:700;text-decoration:underline;text-underline-offset:4px}
.contact{padding:40px!important;margin:48px 0 24px;grid-template-columns:100px minmax(0,1fr);gap:32px;text-align:left}.contact img{width:100px;height:100px}.contact h2{font-size:28px;margin:0 0 12px}.contact-intro{margin:0 0 20px;color:#d5e3df;font-size:15px;line-height:1.85}.wechat-action{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.wechat-number{font-size:22px;font-weight:700;letter-spacing:.02em;user-select:all;overflow-wrap:anywhere}.copy-wechat{border:0;background:#e3f0ec;color:#0f5c5a;font-weight:700;min-height:48px;padding:12px 24px;border-radius:999px}.contact-help{font-size:13px;color:#ceddd7;margin:12px 0}.copy-status{min-height:24px;color:#c1e7dc;font-size:14px;margin:4px 0}.contact-links{display:flex;gap:12px 24px;flex-wrap:wrap;font-size:14px;color:#ceddd7}.contact-links a{color:#a6dfd1;text-decoration:underline;text-underline-offset:4px}
.footer{font-size:12px;line-height:1.8;border-top:1px solid var(--line);padding:24px 0 36px}.footer span:last-child{max-width:760px}.mobile-consult{display:none}:where(a,button,summary,[tabindex]):focus-visible{outline:3px solid #ba6b21;outline-offset:4px}[id]{scroll-margin-top:104px}.source-links{font-size:13px;line-height:1.8;color:var(--muted);margin:32px 0}.source-links a{text-decoration:underline;text-underline-offset:3px}.toc{display:flex;flex-wrap:wrap;gap:8px 20px}.toc b{width:100%;margin:0}.toc a{margin:0}
@media(max-width:1000px) and (min-width:861px){.plan .body{padding:20px}.plan h2,.plan h3{font-size:21px}.navlinks{gap:18px}}
@media(max-width:860px){body{padding-bottom:84px}.wrap{padding-inline:20px}.nav .wrap{height:auto;min-height:94px;display:flex;flex-wrap:wrap;padding-top:12px;padding-bottom:8px;gap:6px}.logo{font-size:16px}.logo small{display:none}.navlinks{width:100%;justify-content:space-between;gap:8px;font-size:12px}.navlinks a{min-height:36px;padding:8px 0}.navlinks .nav-cta{display:none}.hero{padding:136px 20px 32px}.hero h1{font-size:32px}.hero p{font-size:16px}.sec-head h2{font-size:26px}.plans,.steps3,.feat3,.trust,.incl,.why,.two,.pdp{grid-template-columns:minmax(0,1fr)}.plan h2,.plan h3,.plan .sub{min-height:0}.plan .img{height:220px}.plan .body{padding:24px}.plan h2,.plan h3{font-size:24px}.plan .sub{margin-bottom:16px}.plan .cta .btn{font-size:15px}.crumb{padding-top:124px}.pdp{gap:28px;padding:24px 0 32px}.pdp h1{font-size:30px}.pdp .img{padding:24px}.pdp .img img#mainImg{height:260px}.pdp .cta .btn{flex:1}.contact{grid-template-columns:1fr;padding:28px!important;gap:20px;text-align:left;justify-items:start}.contact img{width:72px;height:72px}.contact h2{font-size:24px}.wechat-number{font-size:21px}.contact-links{gap:8px 18px}.cta-band{padding:28px}.article h2{font-size:24px}.mobile-consult{position:fixed;bottom:0;left:0;right:0;z-index:110;display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border-top:1px solid var(--line);padding:10px 20px calc(10px + env(safe-area-inset-bottom))}.mobile-consult span{font-size:13px;color:var(--muted)}.mobile-consult .btn{min-height:44px;font-size:14px;padding:12px 20px}.faq details{padding:20px}.table-scroll{margin-inline:0}.table-scroll:focus-visible{outline-offset:-3px}[id]{scroll-margin-top:116px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}