/* Language-specific font stacks keep CJK glyphs within one family.
   Use the native regular and bold faces, not synthesized intermediate weights. */
body{font-family:"Segoe UI",Arial,sans-serif;font-size:16px;font-weight:400;font-synthesis:none;line-height:1.85;text-size-adjust:100%;-webkit-text-size-adjust:100%}
html[lang="zh-CN"] body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif}
html[lang="ja"] body{font-family:"Noto Sans JP","Yu Gothic","Meiryo",sans-serif}
button,input,textarea,select{font-family:inherit;font-synthesis:none}input,textarea,select{font-weight:400}
h1,h2,h3,.brand b,.eyebrow,nav,.button,.text-link,.footer-brand,form label,.service-link{font-weight:700}
h1{font-size:48px;line-height:1.5;letter-spacing:0}h2{font-size:30px;line-height:1.65;letter-spacing:0}h3{font-size:21px;line-height:1.65;letter-spacing:0}
html[lang="zh-CN"] h1{font-size:46px;line-height:1.5;letter-spacing:0}html[lang="zh-CN"] h2{font-size:30px;letter-spacing:0}html[lang="zh-CN"] h3{font-size:21px;letter-spacing:0}
.lead,.body-copy p,.section-heading>p,.service>p,.service ul,.steps p,.values p,.contact-copy,.partner-grid p,.support-grid p,.models p,.faq-list p{font-size:15px;line-height:1.95;font-weight:400}
.eyebrow{font-size:12px;line-height:1.8}.hero-topics{font-size:12px;letter-spacing:0;gap:14px;flex-wrap:wrap}.hero-topics span{white-space:nowrap}
.service{display:flex;flex-direction:column}.service h3,.steps h3,.values h3{font-size:21px;font-weight:700;line-height:1.65}.service>p{min-height:90px}.service ul{margin-top:20px}.service li:before{top:13px}.use-case{font-size:13px;line-height:1.9;padding-bottom:12px;margin-top:auto}.scope{font-size:12px;line-height:1.9}.service-link{display:block;color:var(--teal);font-size:14px;padding:0 0 24px}.service-link:hover{text-decoration:underline}
.partner-section{background:#fff;border-bottom:1px solid var(--line)}.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.partner-grid article{display:flex;flex-direction:column;border-left:2px solid #d8e9e5;padding-left:20px}.partner-grid h3{margin-bottom:14px}.partner-grid p{color:var(--muted);margin-bottom:20px}.partner-grid a{margin-top:auto;font-size:14px}.support-section{background:#f6f9f8}.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;margin-top:34px}.support-grid article+article{border-left:1px solid var(--line);padding-left:48px}.support-grid h3{margin-bottom:16px}.support-grid p{color:var(--muted)}.support-grid .start-with{font-size:13px;color:var(--ink);border-top:1px solid var(--line);padding-top:18px}.support-grid a{font-size:14px}.models{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:36px}.models h3{margin-top:16px;margin-bottom:12px}.models p{color:var(--muted);margin:0}.faq-section{border-top:1px solid var(--line)}.faq-list{margin-top:32px}.faq-list details{border-bottom:1px solid var(--line);padding:21px 0}.faq-list summary{cursor:pointer;font-size:16px;font-weight:700;list-style:none;padding-right:35px;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:3px;top:0;color:var(--teal);font-size:22px;font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list p{margin:16px 0 0;color:var(--muted);max-width:970px}.contact h2{font-size:30px;max-width:none}.contact-copy{max-width:450px}.email-contact{margin:28px 0}.email-contact>span{display:block;font-size:12px;color:var(--muted)}.email-contact>a{font-family:"Segoe UI",Arial,sans-serif;display:inline-block;font-size:20px;color:var(--teal);font-weight:700;overflow-wrap:anywhere}.email-contact>p{font-size:13px;color:var(--muted);max-width:400px;margin-top:18px}.contact-sign{margin-top:40px}.form-row{grid-template-columns:1fr}.form-row label{margin-bottom:20px}form label{font-size:14px}input,textarea,select{font-size:16px;line-height:1.7}textarea::placeholder{font-size:14px}.inquiry-guide{padding:20px 22px;margin:5px 0 24px;background:#e9f1ed;border:1px solid #dce8df;border-radius:5px}.inquiry-guide>span{font-size:14px;font-weight:700}.inquiry-guide p{font-size:13px;line-height:1.9;color:var(--muted);margin:12px 0}.template-button{background:transparent;border:0;padding:0 0 2px;border-bottom:1px solid #96b4ad;color:var(--teal);font-size:13px;font-weight:700}.form-note{font-size:12px}.summary-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:15px}.summary-actions .copy-button{margin:0;font-weight:400}#summary-text{font-size:14px}.contact .button{max-width:100%}.faq-list summary:focus-visible{outline:3px solid #51a5b6;outline-offset:5px}
@media(max-width:1100px){.partner-grid{grid-template-columns:1fr 1fr;gap:32px}.service>p{min-height:0}}
@media(max-width:760px){html[lang="zh-CN"] h1{font-size:32px;line-height:1.55}html[lang="zh-CN"] h2,h2,.contact h2{font-size:26px;line-height:1.65}html[lang="zh-CN"] h3,h3,.service h3,.steps h3,.values h3{font-size:20px;line-height:1.65}.lead,.body-copy p,.section-heading>p,.service>p,.service ul,.steps p,.values p,.contact-copy,.partner-grid p,.support-grid p,.models p,.faq-list p{font-size:15px;line-height:1.95}.eyebrow{font-size:11px}.hero-topics{font-size:11px;gap:10px}.partner-grid,.support-grid,.models{grid-template-columns:1fr;gap:28px}.partner-grid article{padding-left:18px}.partner-grid p{margin-bottom:12px}.support-grid article+article{padding:27px 0 0;border-left:0;border-top:1px solid var(--line)}.models article{border-top:1px solid var(--line);padding-top:20px}.models h3{margin-top:12px}.steps{grid-template-columns:1fr;gap:27px}.step-number{margin-bottom:12px}.faq-list summary{font-size:15px}.email-contact>a{font-size:19px}.contact-sign{display:none}.inquiry-guide{padding:18px}.summary-actions{gap:12px}}