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@media(min-width:1700px){:root{--rail:250px}.pad{padding-inline:7%}.topbar{padding-inline:7%}.workspace-stage article,.workspace-stage{min-height:600px}.workspace-stage img{height:475px}.workspace-menu{padding:35px}.workspace-menu button{padding-block:27px}.workspace-menu button strong{font-size:14px}.intro-heading h1{font-size:115px}html[lang=zh-CN] .intro-heading h1{font-size:94px}}
@media(max-width:1100px){:root{--rail:185px}.rail{padding:28px 18px}.wordmark{font-size:24px;gap:9px}.brand-seal{font-size:18px}.rail nav{margin-top:50px}.rail nav a{font-size:11px;gap:10px}.rail-bottom p{font-size:11px}.intro-heading{grid-template-columns:1.3fr 1fr;gap:20px}.intro-side p{font-size:11px}.workspace-menu{padding:25px 18px}.workspace-menu button{gap:5px;grid-template-columns:22px 1fr 12px}.workspace-menu button strong{font-size:11px}.stage-info h2{font-size:20px}.stage-info{padding:20px}.pathway{padding:30px;min-height:450px}.pathway h2{font-size:29px}.technical-facts{padding:30px 22px}.technical-facts strong{font-size:31px}.spec-grid{gap:30px}.spec-grid dl>div{grid-template-columns:105px 1fr;gap:15px;font-size:11px}.catalog-row-copy{padding:30px}.catalog-row-copy h2{font-size:27px}.inline-metrics{gap:25px}.process-ledger article{grid-template-columns:45px 1fr 145px;gap:20px}.process-ledger h2{font-size:25px}.rfq-navigation{padding:30px 18px}.rfq-workspace form{padding:30px}.rfq-navigation strong{font-size:11px}.rfq-workspace legend{font-size:24px}.top-actions{gap:17px}.top-inquiry{padding-left:17px}}
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/* Language-specific typography and a quieter, animated interaction system. */
html[lang="zh-CN"]{--mono:'Hiragino Sans GB','PingFang SC','Microsoft YaHei',sans-serif}
html[lang="zh-CN"] body{font-family:'Hiragino Sans GB','PingFang SC','Microsoft YaHei',sans-serif;line-height:1.85}
html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] .wordmark{font-family:'Songti SC','STSong','Noto Serif CJK SC',serif;font-weight:600;letter-spacing:.025em}
html[lang="zh-CN"] .wordmark{font-size:25px;line-height:1.3}
html[lang="zh-CN"] .intro-heading h1{letter-spacing:.025em;line-height:1.22}
html[lang="zh-CN"] .stage-letter{font-family:'Songti SC','STSong',serif;font-size:290px;top:95px}
html[lang="en"] body{font-family:'Avenir Next','Helvetica Neue',sans-serif}
html[lang="en"] h1,html[lang="en"] h2{font-family:'Avenir Next Condensed','Arial Narrow',sans-serif;font-weight:600;letter-spacing:-.035em}
html[lang="en"] .intro-heading h1{font-weight:700;letter-spacing:-.045em}
html[lang="en"]{--mono:'Menlo','Courier New',monospace}
.wordmark,.stage-top,.stage-info small,.location,.rail-bottom small{font-family:inherit}
.workspace-menu button{grid-template-columns:27px 1fr}
.square-action{font-size:11px;min-width:64px;width:auto;padding:0 16px}
.footer-arrow{width:auto!important;min-width:150px;font-size:14px!important;padding:20px!important;border:1px solid currentColor}
.rail nav a{position:relative;transition:color .25s,padding .25s,background .25s}
.rail nav a:hover{padding-left:9px;background:#ffffff06}
.rail nav a[aria-current=page]:after{content:'';position:absolute;right:0;width:5px;height:5px;border-radius:50%;background:var(--orange)}
.under-link{background:linear-gradient(var(--orange),var(--orange)) 0 100% / 0 1px no-repeat;transition:background-size .3s,color .3s}
.under-link:hover{background-size:100% 1px}
.solid-link,.square-action,.footer-arrow,.mobile-toggle{transition:background .25s,color .25s,transform .25s}
.solid-link:hover,.square-action:hover{transform:translateY(-3px)}
.workspace-menu button{transition:background .25s,padding .25s,color .25s}
.workspace-menu button[aria-selected=true]{background:#e5eadd;padding-left:10px}
.workspace-stage [role=tabpanel]:not([hidden]) img{animation:pump-arrive .65s cubic-bezier(.2,.7,.2,1) both}
.workspace-stage [role=tabpanel]:not([hidden]) .stage-info{animation:copy-arrive .5s ease both}
@keyframes pump-arrive{from{opacity:0;transform:translateX(28px) scale(.96)}to{opacity:1;transform:translateX(0) scale(1)}}
@keyframes copy-arrive{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.reveal-ready{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal-ready.is-visible{opacity:1;transform:translateY(0)}
.page-heading h1,.home-intro h1,.contact-title h1,.product-title h1{animation:copy-arrive .7s ease both}
.live-dot{border-radius:50%;animation:signal 3s ease-in-out infinite}
@keyframes signal{0%,100%{box-shadow:0 0 0 0 #d94d1920}50%{box-shadow:0 0 0 7px #d94d1900}}
.reading-progress{position:fixed;top:0;left:var(--rail);right:0;height:2px;background:var(--orange);transform:scaleX(0);transform-origin:left;z-index:60;pointer-events:none}
.catalog-row-image img,.image-path img{transition:transform .7s cubic-bezier(.2,.7,.2,1)}
.catalog-row:hover .catalog-row-image img,.image-path:hover img{transform:scale(1.035)}
fieldset:not([hidden]){animation:copy-arrive .35s ease both}
.quality-records details[open]>div{animation:copy-arrive .3s ease both}
@media(max-width:780px){.reading-progress{left:0}.wordmark small{font-size:7px}html[lang="zh-CN"] .wordmark{font-size:22px}html[lang="zh-CN"] .stage-letter{font-size:180px;top:65px}.footer-arrow{min-width:110px}.workspace-menu button{grid-template-columns:20px 1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal-ready{opacity:1;transform:none}}
html[lang="en"] .brand-seal{font-family:'Avenir Next Condensed','Arial Narrow',sans-serif;font-weight:700}
html[lang="en"] .latin-block{font-family:'Avenir Next Condensed','Arial Narrow',sans-serif;font-weight:700;letter-spacing:-.06em}
/* Brand mark: a carved square and a continuous pump-flow channel. */
.brand-emblem{width:56px;height:56px;flex:0 0 56px;object-fit:contain}
.wordmark{gap:11px}
.wordmark small{letter-spacing:.65px}
.footer-brand{display:flex;align-items:center;gap:10px;white-space:nowrap}
.footer-brand img{flex-shrink:0}
@media(max-width:780px){.brand-emblem{width:42px;height:42px;flex-basis:42px}.wordmark{gap:10px}}
/* Final volute wordmark, with independent Chinese and English outlines. */
.wordmark{display:block;width:100%;line-height:1}
.brand-lockup{display:block;width:100%;height:auto;max-width:174px}
html[lang="zh-CN"] .brand-lockup{max-width:154px}
.footer-brand{flex-direction:column;align-items:flex-start;gap:13px}
.footer-brand .footer-lockup{width:166px;height:auto;max-width:none}
html[lang="zh-CN"] .footer-brand .footer-lockup{width:142px}
.footer-brand small{font-family:var(--mono);font-size:9px}
@media(max-width:780px){.wordmark{width:auto}.brand-lockup{width:188px;max-width:188px}html[lang="zh-CN"] .brand-lockup{width:147px;max-width:147px}.footer-brand{margin-bottom:22px}}
@media(max-width:360px){.brand-lockup{width:160px}}
@media(max-width:780px){.rail{min-height:84px}.topbar{top:84px}html{scroll-padding-top:140px}}