:root{--ink:#24232b;--muted:#62616a;--purple:#352250;--lime:#e7f080;--line:#dedde2;--surface:#f4f4f6;--max:1248px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:114px}body{margin:0;color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.25}h1{letter-spacing:-.055em}h2{font-size:clamp(1.8rem,3.1vw,2.8rem);letter-spacing:-.04em;font-weight:600}h3{font-weight:600}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:3px solid #7c45c7;outline-offset:5px}::selection{background:var(--lime);color:var(--purple)}.container{max-width:var(--max);width:calc(100% - 112px);margin:0 auto}.header{background:rgba(255,255,255,.97);border-bottom:1px solid 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span{margin-left:6px}.menu-toggle{display:none}.skip{position:fixed;left:20px;top:-80px;background:var(--purple);color:white;z-index:50;padding:12px 22px}.skip:focus{top:12px}.hero{display:grid;grid-template-columns:1.04fr 1fr;min-height:602px;align-items:stretch;padding-top:44px;padding-bottom:44px;gap:44px}.hero-copy{display:flex;align-items:flex-start;flex-direction:column;justify-content:center;padding:22px 0}.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.13em;line-height:1.7;color:var(--purple)}.hero .eyebrow{display:flex;align-items:center;gap:10px}.hero .eyebrow>span{display:inline-block;width:20px;height:2px;background:#6d428f}.hero h1{font-size:clamp(2.65rem,4.4vw,4.15rem);font-weight:600;margin:25px 0 23px;line-height:1.24}.hero-intro{color:var(--muted);max-width:410px;margin-bottom:30px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:32px;padding:14px 23px;font-size:.94rem;font-weight:600;transition:background .2s,transform 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@media(max-width:360px){.brand-en{display:none}.hero h1{font-size:2.4rem}.product-grid{grid-template-columns:1fr}.file-meta{display:inline;margin-left:8px}.hero-image{height:270px}.hero-image figcaption{flex-wrap:wrap;gap:2px}.family-info{gap:10px}.family-info p{font-size:.8rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
/* Shared language layout and compact product reference tables. */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.header-inner{height:110px}.header-tools{display:flex;flex-direction:column;align-items:flex-end;gap:4px;min-width:0}.language-nav{display:flex;gap:16px;font-size:.8rem;line-height:1.4}.language-nav a{padding:5px 0;color:var(--muted)}.language-nav a[aria-current=true]{color:var(--purple);font-weight:700}.language-nav a:hover{text-decoration:underline;text-underline-offset:3px}.hero-image figcaption{font-size:.8rem;align-items:flex-start}.hero-image figcaption>a{text-align:right}.hero-image figcaption>a:hover{text-decoration:underline}.library-intro{color:var(--muted);margin-bottom:28px;max-width:850px}.library-intro a{color:var(--purple);text-decoration:underline;text-underline-offset:3px}.current-guides{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}.guide-meta{font-size:.8rem;line-height:1.7;color:var(--muted);margin:-6px 0 12px}.archive{border:1px solid var(--line);padding:0 24px;margin-top:22px;background:var(--surface)}.archive summary{padding:18px 0;cursor:pointer;font-weight:600;font-size:1rem}.archive>p{font-size:.9rem;color:var(--muted);padding-bottom:20px}.archive .download-card{border-top:1px solid var(--line);padding:20px 0}.archive .download-card h3{font-size:1rem}.archive .downloads-grid{gap:24px}.technology-section{margin-top:55px;padding-top:35px;border-top:1px solid var(--line)}.technology-section h2{font-size:1.9rem}.technology-section>.document-note{border:0;margin:15px 0 24px;padding:0}.technology-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.technology{background:var(--surface);padding:28px;border-left:3px solid var(--purple)}.technology h3{font-size:1.3rem;margin:8px 0 16px}.technology>p:not(.eyebrow){color:var(--muted);font-size:1rem;line-height:1.75;margin-bottom:20px}.technology .download-links{flex-direction:row;flex-wrap:wrap;gap:20px}.compact-hero{grid-template-columns:1.5fr .5fr;gap:30px;padding-bottom:25px}.compact-hero img{height:145px;object-fit:cover}.compact-hero h1{font-size:clamp(2rem,3.3vw,3rem);letter-spacing:-.035em}.compact-hero figcaption{font-size:.75rem;color:var(--muted);padding-top:5px;line-height:1.5}.category-nav{font-weight:500}.category-nav a{padding:14px 17px;font-size:.875rem}.catalog-note{font-size:.875rem;color:var(--muted);padding:20px 0 0;max-width:900px}.product-group{padding:34px 0}.group-heading{margin-bottom:20px;align-items:flex-start;gap:18px}.group-heading h2{font-size:1.55rem}.group-heading p:last-child{margin-top:6px;font-size:.875rem}.model-count{margin-left:auto;white-space:nowrap;color:var(--muted);font-size:.8rem;padding-top:5px}.table-wrap{max-width:100%;border-top:2px solid var(--purple);overflow-x:auto}.product-table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:.94rem;line-height:1.5;text-align:left}.product-table th,.product-table td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle;overflow-wrap:break-word}.product-table thead{background:#f0edf4;color:var(--purple);font-size:.875rem}.product-table thead th{font-weight:600;padding:12px 14px}.product-table thead th:first-child{width:15%}.product-table thead th:nth-child(2){width:22%}.product-table thead th:last-child{width:18%}.product-table tbody th{font-size:1rem;font-weight:700;letter-spacing:.01em}.product-table tbody tr:nth-child(even){background:#faf9fb}.product-table tbody tr:hover{background:#f2eff7}.product-table .series-col{font-size:.82rem;color:var(--muted)}.document-cell>a{color:var(--purple);white-space:nowrap;font-size:.875rem;padding:5px 0;display:inline-block}.document-cell>a:hover{text-decoration:underline;text-underline-offset:3px}.file-size{font-size:.75rem;white-space:nowrap;color:var(--muted);margin-left:12px;display:inline-block}.inline-brand{display:block;font-size:.75rem;color:var(--muted)}.additional-models{padding:40px 0;border-bottom:1px solid var(--line)}.additional-models h2{font-size:1.7rem;margin:10px 0 0}.additional-models>.document-note{border:0;padding-top:0;margin:14px 0 22px}.catalog-downloads{padding-top:45px}.catalog-downloads h2{margin-bottom:15px}html[lang=en] h1,html[lang=en] h2{letter-spacing:-.035em}html[lang=en] .hero h1{font-size:clamp(2.25rem,3.65vw,3.5rem)}html[lang=en] .header nav{font-size:.875rem;gap:22px}html[lang=en] .hero-image figcaption{font-size:.75rem}
@media(max-width:1100px){html[lang=en] .header nav{gap:15px}.product-table thead th:last-child{width:20%}.file-size{margin-left:0;display:block}.brand-en{display:none}.category-nav a{padding:13px 14px}.group-heading h2{font-size:1.5rem}}
@media(max-width:850px){.header-inner{height:98px}.header nav,.header-tools nav{position:absolute;left:0;right:0;top:98px;background:white;border-bottom:1px solid var(--line);padding:14px 20px 22px;display:none;align-items:stretch;gap:0;box-shadow:0 12px 18px #3522500a}.header nav.is-open{display:flex;flex-direction:column}.header nav a{padding:14px 10px;min-height:48px}.header-tools{gap:5px}.menu-toggle{display:flex;gap:12px;align-items:center;border:1px solid var(--line);background:white;min-height:36px;padding:6px 12px;font-size:.875rem}.nav-contact{border-left:0;border-top:1px solid var(--line);margin-top:8px}.brand-en{display:block;font-size:.75rem}.language-nav{font-size:.75rem;gap:14px}.hero{padding-top:28px}.product-table .series-col{display:none}.product-table thead th:first-child{width:19%}.product-table thead th:last-child{width:25%}.product-table{font-size:.9rem}.product-table th,.product-table td{padding:10px}.technology-grid{gap:18px}.compact-hero h1{font-size:2rem}html{scroll-padding-top:120px}}
@media(max-width:760px){.header-inner{gap:12px}.hero h1{font-size:clamp(2.5rem,8.2vw,3.5rem)}html[lang=en] .hero h1{font-size:clamp(2.1rem,7.1vw,3rem)}.hero-image figcaption{flex-wrap:wrap;gap:5px}.hero-image figcaption>a{text-align:left}.current-guides{grid-template-columns:1fr}.technology-grid{grid-template-columns:1fr}.technology{padding:24px}.technology-section h2,.additional-models h2{font-size:1.6rem}.compact-hero{grid-template-columns:1fr;padding:4px 0 24px;gap:20px}.compact-hero img{height:140px}.compact-hero figure{display:none}.compact-hero h1{font-size:2rem;margin:12px 0}.category-nav{display:flex;flex-wrap:wrap}.category-nav a{flex:1 1 40%;margin:0;border:0;border-bottom:1px solid var(--line);font-size:.875rem;padding:12px 10px}.category-nav a:last-child{border-bottom:0}.product-group{padding:28px 0}.group-heading{gap:10px;margin-bottom:16px;flex-wrap:wrap}.group-heading h2{font-size:1.35rem}.group-heading>div{flex:1;min-width:0}.group-heading p:last-child{font-size:.875rem}.model-count{display:none}.group-number{min-width:25px}.product-table{font-size:.875rem}.product-table thead{font-size:.875rem}.product-table th,.product-table td{padding:10px 7px}.product-table thead th{padding:10px 7px}.product-table thead th:first-child{width:22%}.product-table thead th:last-child{width:26%}.product-table tbody th{font-size:.94rem}.document-cell>a{font-size:.875rem;white-space:normal}.document-cell>a span{display:none}.file-size{font-size:.75rem;margin-top:2px}.catalog-note{font-size:.875rem;padding-top:16px}.archive{padding:0 18px}.archive .downloads-grid{gap:0}.archive .download-card h3{font-size:1rem}.guide-meta{font-size:.8rem}.guide-meta+.download-links{font-size:.875rem}.additional-models{padding-top:32px}.contact-row strong{overflow-wrap:anywhere}.library-intro{font-size:.94rem}.guide-meta{margin-bottom:12px}.brand-en{display:none}}
@media(max-width:360px){.language-nav{gap:10px}.brand-cn{font-size:1.4rem}.product-table tbody th{font-size:.875rem}.product-table th,.product-table td{padding:9px 6px}.file-size{font-size:.75rem}.document-cell>a{font-size:.875rem}}
body{font-size:1rem}.header-inner{height:auto;min-height:110px;padding-top:13px;padding-bottom:13px}.header-tools nav{flex-wrap:wrap;justify-content:flex-end}html{scroll-padding-top:8rem}
@media(max-width:850px){.header-inner{min-height:98px}.header-tools nav{top:100%;justify-content:flex-start}}