:root{--paper:#f6f8fb;--ink:#101820;--muted:#586779;--line:#cfd7df;--blue:#1457d9;--cyan:#1e9bb8;--orange:#e7652f;--white:#fff;--max:1280px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;letter-spacing:0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
.site-header{height:76px;display:flex;align-items:center;gap:34px;padding:0 max(24px,calc((100vw - var(--max))/2));background:rgba(246,248,251,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.08em}.brand-mark{width:34px;height:34px;display:grid;place-items:center;background:var(--blue);color:white;font-weight:900}
.site-nav{display:flex;align-items:center;gap:26px;font-size:14px;margin-left:auto}.site-nav a:hover,.text-link:hover{color:var(--blue)}.header-actions{display:flex;align-items:center;gap:18px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;background:var(--blue);color:white;font-weight:700;border:1px solid var(--blue)}.button.small{min-height:40px;padding:0 17px;font-size:14px}.button.secondary{background:rgba(255,255,255,.88);color:var(--ink);border-color:var(--ink)}.menu-toggle{display:none;border:0;background:transparent;font-size:24px}
.hero{min-height:calc(100vh - 76px);max-height:880px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}.hero>img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:center}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(246,248,251,.95) 0,rgba(246,248,251,.76) 29%,rgba(246,248,251,.1) 58%,rgba(246,248,251,0) 100%)}
.hero-copy{position:relative;z-index:2;width:min(590px,48vw);padding:clamp(76px,12vh,142px) 24px 70px max(24px,calc((100vw - var(--max))/2));}.eyebrow{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--blue);text-transform:uppercase;margin:0 0 15px}.hero h1{font-size:clamp(54px,6vw,96px);line-height:1.02;margin:0 0 28px;font-weight:760;letter-spacing:0}.hero-copy>p:not(.eyebrow){max-width:560px;color:#334151;font-size:17px}.hero-actions{display:flex;gap:12px;margin-top:30px}.hero-note{position:absolute;right:max(24px,calc((100vw - var(--max))/2));bottom:30px;z-index:3;background:rgba(255,255,255,.9);border-left:4px solid var(--orange);padding:14px 18px;display:flex;flex-direction:column}.hero-note span{font-size:11px;color:var(--muted)}.hero-note strong{font-size:14px}
.route-scale{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(6,1fr);border-left:1px solid var(--line);border-bottom:1px solid var(--line)}.route-scale div{padding:22px 18px;border-right:1px solid var(--line)}.route-scale span{display:block;font-size:11px;color:var(--blue);font-weight:800}.route-scale strong{font-size:13px}
.opening{max-width:var(--max);margin:110px auto 60px;display:grid;grid-template-columns:150px minmax(280px,1fr) minmax(280px,.8fr);gap:42px;align-items:start;padding:0 24px}.section-number{font-size:11px;border-top:3px solid var(--ink);padding-top:9px}.opening h2,.bench-heading h2,.engineering-index h2,.editorial h2,.page-mast h1{font-size:clamp(34px,4vw,58px);line-height:1.12;margin:0;letter-spacing:0}.opening>p{margin:30px 0 0;color:var(--muted)}
.link-section{max-width:var(--max);margin:0 auto 120px;padding:0 24px}.link-diagram{display:grid;grid-template-columns:1.05fr 1.3fr 1.4fr 1fr;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.lane{min-height:340px;padding:28px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column}.lane:last-child{border-right:0}.lane>span{font-size:12px;color:var(--blue);font-weight:800}.lane h3{font-size:23px;margin:70px 0 10px}.lane p{color:var(--muted);font-size:14px}.lane a{margin-top:auto;color:var(--blue);font-weight:700;font-size:13px}.lane-core{background:#10243e;color:white}.lane-core p{color:#b9c7d7}.lane-core a{color:#7bcde2}.lane-task{border-top:6px solid var(--orange)}
.device-bench{background:white;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:100px max(24px,calc((100vw - var(--max))/2));display:grid;grid-template-columns:.78fr 1.22fr;gap:90px}.bench-heading p:not(.eyebrow){color:var(--muted);max-width:500px}.device-table{border-top:1px solid var(--ink)}.device-table a{display:grid;grid-template-columns:1fr 1.3fr auto;gap:20px;align-items:center;padding:23px 4px;border-bottom:1px solid var(--line)}.device-table a:hover{color:var(--blue)}.device-table span,.device-table b{font-size:13px;color:var(--muted);font-weight:500}.device-table b{border:1px solid var(--line);padding:3px 9px}
.engineering-index{max-width:var(--max);margin:120px auto;display:grid;grid-template-columns:.8fr 1.2fr;gap:90px;padding:0 24px}.index-intro>p:not(.eyebrow){color:var(--muted)}.index-intro>a{display:inline-block;margin-top:18px;color:var(--blue);font-weight:700}.index-columns{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--ink)}.index-columns>div{padding:28px 24px 45px 0;border-bottom:1px solid var(--line)}.index-columns>div:nth-child(odd){border-right:1px solid var(--line)}.index-columns>div:nth-child(even){padding-left:24px}.index-columns span{font-size:11px;color:var(--orange);font-weight:800}.index-columns h3{font-size:20px;line-height:1.3}.index-columns p{font-size:14px;color:var(--muted)}
.editorial{background:#e9edf2;padding:100px max(24px,calc((100vw - var(--max))/2))}.editorial>header{display:flex;justify-content:space-between;align-items:end;margin-bottom:50px}.editorial>header>a{color:var(--blue);font-weight:700}.story-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.story{background:white;padding:25px;min-height:250px;border-top:4px solid var(--blue);display:flex;flex-direction:column}.story-1{grid-column:span 7}.story-2{grid-column:span 5}.story-3{grid-column:span 4}.story-4{grid-column:span 8}.story time{font-size:11px;color:var(--muted)}.story h3{font-size:21px;line-height:1.35;margin:28px 0 10px}.story p{font-size:14px;color:var(--muted)}.story-link{margin-top:auto;color:var(--blue);font-weight:700;font-size:13px}
.service-strip{max-width:var(--max);margin:0 auto;padding:48px 24px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.service-strip div{display:flex;gap:24px}.service-strip a{font-weight:700;color:var(--blue)}
.site-footer{max-width:var(--max);margin:0 auto;padding:70px 24px 30px}.footer-brand{display:flex;gap:14px;align-items:center;border-bottom:1px solid var(--ink);padding-bottom:30px}.footer-brand p{margin:0;color:var(--muted);font-size:13px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;padding:42px 0}.footer-links div{display:flex;flex-direction:column;gap:9px}.footer-links strong{font-size:12px;color:var(--muted);margin-bottom:8px}.footer-links a{font-size:14px}.copyright{border-top:1px solid var(--line);padding-top:20px;color:var(--muted);font-size:12px}
.page-mast{max-width:var(--max);margin:0 auto;padding:110px 24px 70px;border-bottom:1px solid var(--ink)}.page-mast h1{max-width:850px}.page-mast>p:last-child{max-width:720px;color:var(--muted);font-size:17px}.manual{max-width:1000px;margin:70px auto 100px;padding:0 24px}.manual article{display:grid;grid-template-columns:70px 1fr;gap:30px;padding:38px 0;border-bottom:1px solid var(--line)}.manual article>span{font-size:12px;color:var(--blue);font-weight:800}.manual h2{font-size:25px;margin:0 0 10px}.manual p{color:var(--muted)}.page-actions{max-width:1000px;margin:0 auto 100px;padding:35px 24px;border-top:3px solid var(--ink);display:flex;align-items:center;gap:28px}.page-actions h2{font-size:20px;margin-right:auto}.page-actions a{color:var(--blue);font-weight:700}
.article-page{max-width:1180px;margin:0 auto;padding:45px 24px 100px}.breadcrumbs{font-size:12px;color:var(--muted);display:flex;gap:8px}.article-header{padding:75px 0 60px;border-bottom:1px solid var(--ink)}.article-header h1{font-size:clamp(40px,5vw,72px);line-height:1.08;max-width:1000px;margin:0 0 25px}.article-header>p:not(.eyebrow){max-width:760px;font-size:18px;color:var(--muted)}.article-header time{font-size:12px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 230px;gap:80px;margin-top:60px}.article-copy{font-size:17px}.article-copy h2{font-size:28px;line-height:1.35;margin:65px 0 16px}.article-copy p{margin:0 0 20px}.article-lead{font-size:22px;line-height:1.7;border-left:5px solid var(--blue);padding-left:24px}.article-callout{margin:60px 0;background:#e8eef8;padding:30px;border-top:4px solid var(--blue)}.article-rail{position:sticky;top:110px;height:max-content;border-top:2px solid var(--ink);padding-top:20px;display:flex;flex-direction:column;gap:9px;font-size:13px}.article-rail span{color:var(--muted)}.article-rail a{color:var(--blue);font-weight:700;margin-top:10px}.article-next{display:flex;justify-content:space-between;border-top:1px solid var(--ink);padding-top:25px;margin-top:70px;color:var(--blue);font-weight:700}.article-directory{max-width:var(--max);margin:60px auto 100px;padding:0 24px;display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.article-directory .story{grid-column:span 4}.editorial-mast{background:white}.not-found{max-width:900px;margin:100px auto;padding:100px 24px}.not-found h1{font-size:clamp(50px,8vw,100px);margin:0}.not-found p{max-width:600px;color:var(--muted)}.not-found .button{margin:25px 8px 0 0}
@media(max-width:900px){.site-header{padding:0 18px}.site-nav{display:none;position:absolute;top:75px;left:0;right:0;background:var(--paper);padding:20px;flex-direction:column;border-bottom:1px solid var(--line)}.site-nav.open{display:flex}.menu-toggle{display:block}.header-actions .text-link{display:none}.hero{min-height:760px}.hero:after{background:linear-gradient(180deg,rgba(246,248,251,.97) 0,rgba(246,248,251,.72) 45%,rgba(246,248,251,.08) 75%)}.hero-copy{width:auto;padding:70px 22px}.hero h1{font-size:58px}.hero-note{right:18px;bottom:18px}.route-scale{grid-template-columns:repeat(3,1fr)}.opening{grid-template-columns:1fr;margin:75px auto 40px;gap:20px}.opening>p{margin:0}.link-diagram{grid-template-columns:1fr 1fr}.lane{min-height:300px}.device-bench,.engineering-index{grid-template-columns:1fr;gap:45px}.article-directory .story{grid-column:span 6}.article-layout{grid-template-columns:1fr}.article-rail{position:static}.footer-links{grid-template-columns:1fr 1fr}.page-actions{align-items:flex-start;flex-wrap:wrap}.page-actions h2{width:100%}}
@media(max-width:560px){.site-header{height:68px}.header-actions .button{min-height:36px;padding:0 11px}.brand{font-size:14px}.brand-mark{width:30px;height:30px}.hero{min-height:700px}.hero-copy{padding-top:55px}.hero h1{font-size:46px}.hero-copy>p:not(.eyebrow){font-size:15px}.hero-actions{flex-direction:column;width:190px}.hero-note{font-size:12px}.route-scale{grid-template-columns:repeat(2,1fr)}.opening h2,.bench-heading h2,.engineering-index h2,.editorial h2,.page-mast h1{font-size:34px}.link-diagram{grid-template-columns:1fr}.lane{min-height:245px}.lane h3{margin-top:30px}.device-bench{padding-top:70px;padding-bottom:70px}.device-table a{grid-template-columns:1fr auto}.device-table span{grid-row:2;grid-column:1/3}.index-columns{grid-template-columns:1fr}.index-columns>div:nth-child(odd){border-right:0}.index-columns>div:nth-child(even){padding-left:0}.editorial{padding-top:70px;padding-bottom:70px}.editorial>header{align-items:flex-start;gap:20px;flex-direction:column}.story-grid,.article-directory{display:block}.story{margin-bottom:14px;min-height:230px}.service-strip{align-items:flex-start;flex-direction:column}.service-strip div{flex-wrap:wrap}.footer-links{grid-template-columns:1fr 1fr;gap:28px}.manual article{grid-template-columns:40px 1fr}.page-actions{display:grid}.article-header{padding-top:50px}.article-header h1{font-size:39px}.article-copy{font-size:16px}.article-copy h2{font-size:25px}.article-lead{font-size:19px}.article-next{flex-direction:column;gap:14px}}