:root{--ink:#243b49;--blue:#156184;--muted:#506575;--cream:#fffaf3;--line:#d8e1e4;--mint:#e2f3f2;--coral:#b94738}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--cream);color:var(--ink);font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--blue);text-underline-offset:4px}a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}img{max-width:100%;display:block}h1,h2,h3{line-height:1.15;text-wrap:balance}h1{font-size:clamp(36px,4.5vw,60px);letter-spacing:-.035em;margin:16px 0 24px}h2{font-size:clamp(26px,3vw,36px);letter-spacing:-.02em}h3{font-size:23px}p{margin:0 0 20px}em{font-style:normal;color:var(--blue)}.wrap{width:min(1120px,calc(100% - 48px));margin:auto}.site-header{background:var(--cream);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:90px}.brand{flex-shrink:0}.brand img{width:176px;height:auto}.nav-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap}.nav-links a{text-decoration:none;font-size:15px;font-weight:650;min-height:44px;display:inline-flex;align-items:center}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:15px;text-decoration:none;font-weight:700;line-height:1.35;border:1px solid var(--line);text-align:center}.primary{background:var(--blue);color:white;border-color:var(--blue)}.secondary{background:white;color:var(--blue)}.button:hover{filter:brightness(.94)}.actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin:25px 0}.hero{padding:64px 0 48px;display:grid;grid-template-columns:1.2fr 1fr;gap:52px;align-items:center}.hero-image{width:100%;height:auto;aspect-ratio:4/3;object-fit:contain;border-radius:24px;background:white}.eyebrow{font-size:13px;font-weight:750;letter-spacing:.08em;color:var(--coral);line-height:1.6}.dek{font-size:20px;color:var(--muted)}.meta{font-size:14px;color:var(--muted)}.section{padding:48px 0;border-top:1px solid var(--line)}.steps,.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:30px 0}.steps article{padding:12px 18px 12px 0}.step{font-size:15px;font-weight:800;color:var(--blue)}.steps p,.section>p{color:var(--muted)}.split{display:grid;grid-template-columns:1.3fr .7fr;gap:60px;align-items:center}.example{text-align:center;background:var(--mint);padding:32px;border-radius:24px}.character{font-size:100px;line-height:1.2;margin:16px 0}.plans article{background:white;border:1px solid var(--line);border-radius:22px;padding:26px;display:flex;flex-direction:column}.plans .button{margin-top:auto}.plans h3{margin:0 0 14px}.plans ul{padding-left:20px;margin:0 0 24px}.price{font-weight:800;font-size:32px}.price small{font-size:15px;font-weight:500}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;font-weight:650;min-height:44px}.faq details p{margin:14px 0;color:var(--muted);max-width:75ch}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;padding:20px 0 70px}.guide-card{background:white;border:1px solid var(--line);border-radius:22px;overflow:hidden}.guide-card img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}.guide-card>div{padding:28px}.guide-card h2{font-size:26px}.guide-card h2 a{text-decoration:none;color:var(--ink)}.guide-card p{color:var(--muted)}.guide-card .eyebrow{color:var(--coral)}.read-more{font-weight:700}.article-wrap{width:min(800px,calc(100% - 48px));margin:auto}.breadcrumbs{padding-top:28px;font-size:14px}.article-hero{padding:32px 0 20px}.article-cover{width:100%;height:auto;max-height:440px;object-fit:contain;border-radius:22px;margin:0 0 36px}.article-body{max-width:70ch}.article-body h2{margin:42px 0 20px;font-size:29px}.article-body li{margin:12px 0}.article-body p,.article-body li{color:var(--muted)}.article-body strong{color:var(--ink)}.quick-box,.activity{background:var(--mint);padding:24px;border-radius:18px;margin:28px 0}.activity{background:#fff0d0}.article-body .quick-box h2,.article-body .activity h2{margin-top:0}.article-cta{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:40px 0;padding:28px 0}.related{padding:0 0 45px}.related li{margin:14px 0}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:16px}td,th{padding:15px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--mint)}.site-footer{border-top:1px solid var(--line);padding:35px 0;font-size:14px;color:var(--muted)}.footer-row{display:flex;justify-content:space-between;gap:30px}.footer-row nav{display:flex;flex-wrap:wrap;gap:12px 22px;align-content:start;max-width:530px}.footer-row a{min-height:44px}.skip{position:absolute;top:4px;left:8px;background:white;padding:10px;transform:translateY(-150%);z-index:100}.skip:focus{transform:none}@media(max-width:760px){.wrap,.article-wrap{width:calc(100% - 32px)}.nav{gap:12px;padding:15px 0;flex-wrap:wrap}.brand img{width:144px}.nav-links{gap:12px;width:100%;justify-content:space-between}.nav-links .button{padding:10px 16px}.hero{grid-template-columns:1fr;gap:24px;padding:36px 0}.hero-image{max-height:300px}.steps,.plans,.split,.guide-grid{grid-template-columns:1fr;gap:20px}.section{padding:34px 0}.steps article{padding:0}.split{gap:25px}.guide-card>div{padding:22px}.footer-row{flex-direction:column;gap:10px}.article-body h2{font-size:26px}.article-hero{padding-top:22px}.dek{font-size:18px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Shared Chinese–English guide components. */
.hero-image{object-fit:cover;object-position:center;border:8px solid #fff;aspect-ratio:4/3}
.hero>div>p:not(.eyebrow),.article-dek{font-size:20px;line-height:1.7;color:var(--muted)}
.guide-card{display:flex;flex-direction:column}.guide-card>div{display:flex;flex-direction:column;flex:1;padding:26px}.guide-card img{aspect-ratio:16/10}.guide-card h2{font-size:25px;line-height:1.3;margin:12px 0 18px;letter-spacing:-.02em}.guide-card small,.guide-card .eyebrow{font-size:13px;line-height:1.6;font-weight:750;letter-spacing:.04em;color:var(--coral);margin:0}.read-more{margin-top:auto;padding-top:8px;min-height:44px;display:inline-flex;align-items:center;text-decoration:none}.read-more:hover{text-decoration:underline}
.article-meta{font-size:14px;color:var(--muted)}.article-cta a:not(.button){display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border-radius:15px;background:var(--blue);color:white;text-decoration:none;font-weight:700}.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.related-grid a{padding:18px;background:white;border:1px solid var(--line);border-radius:18px;text-decoration:none}.footer-row>span:last-child{display:flex;gap:22px;flex-wrap:wrap}html[lang="zh-CN"] h1{letter-spacing:0;line-height:1.25}html[lang="zh-CN"] .hero h1{font-size:clamp(36px,4.5vw,56px)}
@media(max-width:760px){.hero>div>p:not(.eyebrow),.article-dek{font-size:18px}.guide-card>div{padding:22px}.related-grid{grid-template-columns:1fr}}