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:root{color-scheme:light dark;--paper:#f8f9f8;--surface:#fff;--ink:#182e3a;--muted:#526471;--line:#d3dcdf;--accent:#235a83;--tint:#e5edf1;--tint-strong:#d6e2ea;--shadow:0 22px 48px #1e40561c;--radius:14px;--display:Caslon,Georgia,'Songti SC',serif;--body:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif}
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100%)}.hero-copy{position:absolute;inset:0;z-index:1;display:flex;align-items:center;flex-direction:column;justify-content:flex-start;padding:98px 24px 30px;text-align:center;color:#fff}.hero h1{font-size:clamp(48px,5.6vw,80px);max-width:1100px;text-shadow:none}.hero p{font-size:16px;max-width:430px;line-height:1.65;margin:24px 0 30px}.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;padding:13px 23px;min-height:49px;font-size:14px;font-weight:500;border-radius:8px;border:0;white-space:nowrap;transition:background .18s,transform .18s}.button:hover{text-decoration:none}.hero-button{background:#fff;color:#183548;box-shadow:none}.hero-button:hover{background:#e6eef3}.primary{background:var(--accent);color:#fff}.primary:hover{filter:brightness(.9)}.secondary{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.secondary:hover{background:var(--tint)}.intro-rail{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:29px;border-bottom:1px solid var(--line);color:var(--muted);font-size:12px}.intro-rail p{margin:0}.intro-rail>span{font-family:var(--display);font-size:21px;color:var(--ink)}.card-section{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.category-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}.category-tabs button{background:transparent;border:1px solid var(--line);border-radius:30px;padding:9px 17px;font-size:13px;min-height:44px}.category-tabs button[aria-selected=true]{background:var(--accent);color:#fff;border-color:var(--accent)}.category-tabs button:hover{box-shadow:inset 0 0 0 1px var(--accent)}.category-description{font-size:14px;margin:20px 0 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18px;font-size:14px}#dialog-title{font-size:13px;color:var(--muted);margin-top:22px}#dialog-zh{font-size:clamp(32px,5vw,55px);line-height:1.5;font-weight:500;margin:36px 0 12px}#dialog-en{font-size:19px;color:var(--muted);margin-bottom:38px}body:has(dialog[open]){overflow:hidden}[hidden]{display:none!important}
@media(prefers-color-scheme:dark){:root{--paper:#12242f;--surface:#1c3341;--ink:#eff4f6;--muted:#b5c7d0;--line:#405766;--accent:#a5d3f3;--tint:#233e50;--tint-strong:#365a73;--shadow:0 22px 48px #08151d66}.primary,.category-tabs button[aria-selected=true]{color:#122c40}.availability{color:var(--accent)}}
@media(prefers-reduced-motion:no-preference){.hero-copy{animation:arrive .8s cubic-bezier(.16,1,.3,1) both}@keyframes arrive{from{opacity:.65;transform:translateY(12px)}to{opacity:1;transform:none}}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.card-section{gap:40px}.editorial,.faq{gap:55px}.hero-copy{padding-top:90px}.hero h1{font-size:65px}.desktop-nav{gap:20px}.header{padding-inline:26px}.card-stage{padding-inline:24px}.card-actions{flex-wrap:wrap}.support-grid{gap:36px}.intro-rail{font-size:11px}.intro-rail>span{display:none}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.section{padding-block:58px}.header{height:76px;padding-inline:20px;gap:10px}.brand{font-size:23px}.brand span{font-size:11px}.desktop-nav{display:none}.menu-toggle{display:block;font-size:12px;min-height:44px}.header-tools{gap:6px}.mobile-nav{top:76px}.hero{margin-inline:10px;height:calc(100svh - 96px);min-height:570px;max-height:720px;border-radius:12px}.hero>img{object-position:92% center}.hero-copy{padding:56px 20px 24px}.hero h1{font-size:clamp(40px,8.8vw,58px);line-height:1.05;max-width:500px}.hero p{font-size:14px;max-width:300px;margin:22px 0 25px}.hero:after{background:linear-gradient(180deg,#08263c77,#08263c40 66%,#08263c05)}.intro-rail{display:block;padding:22px 0;font-size:11px;text-align:center}.intro-rail p+p{margin-top:5px}.card-section{grid-template-columns:1fr;gap:28px}.card-intro>.lead{max-width:330px}.lead{font-size:16px;margin-top:20px}.category-tabs{margin-top:26px;gap:7px}.category-tabs button{padding:8px 14px;font-size:12px}.category-description{min-height:0;margin-bottom:15px}.card-intro>.fine{margin-top:12px}.card-stage{padding:36px 24px 14px}.phrase-preview{padding:20px;min-height:270px}.phrase-chinese{font-size:30px}.card-actions{gap:8px;margin-top:30px}.card-actions .button{padding-inline:13px;flex:1;font-size:12px}.journey-section{padding-top:10px}.journey-grid{grid-template-columns:1fr}.journey-step,.journey-step:not(:first-child){border-left:0;padding:25px 0 26px 55px;border-bottom:1px solid var(--line)}.step-num{position:absolute;left:0;top:27px;font-size:23px}.journey-step h3{font-size:29px}.journey-step p{margin:10px 0 12px;max-width:100%}.editorial{grid-template-columns:1fr;gap:35px;padding-top:5px}.editorial-image img{height:auto;aspect-ratio:1.03;object-position:center 66%}.editorial-copy{padding:0}.editorial-point{margin-top:23px}.editorial-copy .lead{margin-bottom:25px}.support-grid{grid-template-columns:1fr;gap:30px;margin-top:28px}.support-photo img{aspect-ratio:1.45}.price{font-size:58px}.faq{grid-template-columns:1fr;gap:30px}.faq>div>p{max-width:350px}.footer-top{align-items:flex-start;flex-wrap:wrap}.footer-top>p{font-size:24px;width:100%;order:3}.footer-bottom{display:block;margin-top:25px}.fit-fields{grid-template-columns:1fr;gap:17px}#fit-form{padding:24px 18px}dialog{padding:24px}.dialog-head{font-size:20px}.phrase-english{font-size:15px}.card-bottom{font-size:11px}.footer{padding-block:30px 20px}}
@media(max-width:360px){.header{padding-inline:14px}.brand{font-size:20px}.hero-copy{padding-top:47px}.hero h1{font-size:38px}.hero p{font-size:13px}.hero{min-height:550px}.card-stage{padding-inline:18px}.phrase-preview{padding:17px}.phrase-chinese{font-size:26px}.card-actions{flex-direction:column}.category-tabs button{padding-inline:11px}.dialog-head{font-size:17px}}
html[lang=zh-CN] h1,html[lang=zh-CN] h2{font-family:'Songti SC','STSong',serif;font-weight:500;line-height:1.22}html[lang=zh-CN] .hero h1{font-size:clamp(40px,5vw,70px)}html[lang=zh-CN] h2{font-size:clamp(34px,3.6vw,54px)}html[lang=zh-CN] .journey-step h3{font-family:var(--body);font-size:25px}
.route-example{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:72px;align-items:start;border-bottom:1px solid var(--line)}.example-intro .lead{max-width:460px}.example-intro .text-link{margin-top:14px}.example-brief{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 34px}.example-case{font-size:12px;color:var(--muted);margin-bottom:14px}.example-brief h3{font-family:var(--display);font-size:clamp(28px,3vw,42px);margin-bottom:24px}.example-brief dl{margin:0}.example-brief dl>div{display:grid;grid-template-columns:112px minmax(0,1fr);gap:18px;border-top:1px solid var(--line);padding:15px 0}.example-brief dt{font-size:12px;color:var(--muted)}.example-brief dd{margin:0;font-size:14px;line-height:1.65}@media(max-width:760px){.route-example{grid-template-columns:1fr;gap:28px}.example-brief{padding:22px}.example-brief dl>div{grid-template-columns:1fr;gap:4px}.example-brief h3{margin-bottom:18px}}