:root{color:#172033;background:#f5f7fa;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--brand: #1769e0;--brand-dark: #0f4fae;--ink: #172033;--muted: #687287;--line: #e5e9f0;--surface: #fff;--soft: #f4f7fb;--danger: #b33a3a}*{box-sizing:border-box}html{min-width:320px;background:#f5f7fa}body{min-width:320px;min-height:100vh;margin:0;color:var(--ink);background:#f5f7fa;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid rgb(23 105 224 / 24%);outline-offset:2px}.app-shell{min-height:100vh}.page-container{width:min(100% - 32px,1040px);margin:0 auto}.inner-page{padding-top:28px;padding-bottom:64px}.topbar{position:sticky;z-index:20;top:0;display:flex;align-items:center;height:58px;padding:0 max(16px,env(safe-area-inset-left));background:#fffffff0;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.back-button{display:grid;width:42px;height:42px;padding:0;margin-right:5px;color:var(--ink);cursor:pointer;background:transparent;border:0;border-radius:50%;place-items:center}.back-button span{margin-top:-4px;font-size:38px;font-weight:300;line-height:1}.mini-brand{display:flex;align-items:center;min-height:42px;font-size:15px;font-weight:700}.mini-logo,.brand-logo{display:inline-grid;color:#fff;font-size:12px;font-weight:800;letter-spacing:-.03em;background:var(--brand);border-radius:8px;place-items:center}.mini-logo{width:28px;height:28px;margin-right:9px}.home-page{padding-top:max(30px,env(safe-area-inset-top));padding-bottom:30px}.home-hero{padding:26px 0 22px}.brand-lockup{display:flex;align-items:center;gap:10px;margin-bottom:30px;color:#475166;font-size:14px;font-weight:650}.brand-logo{width:38px;height:38px;font-size:15px;border-radius:11px}.home-hero h1,.page-heading h1,.video-heading h1,.legacy-product h1{margin:0;color:#111a2b;letter-spacing:-.035em}.home-hero h1{font-size:clamp(34px,9vw,48px);line-height:1.12}.home-hero>p{margin:12px 0 25px;color:var(--muted);font-size:16px;line-height:1.7}.hero-search{display:flex;align-items:center;min-height:58px;padding-left:16px;overflow:hidden;background:#fff;border:1px solid #dce2eb;border-radius:16px;box-shadow:0 10px 30px #1a315517}.hero-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px #1769e01f,0 12px 32px #1a31551a}.search-icon{flex:0 0 auto;margin-right:9px;color:#7b8596;font-size:26px;line-height:1;transform:rotate(-18deg)}.hero-search input{min-width:0;min-height:56px;flex:1;color:var(--ink);font-size:17px;background:transparent;border:0;outline:0}.hero-search input::placeholder{color:#98a0ae}.hero-search button{align-self:stretch;min-width:76px;padding:0 18px;color:#fff;font-weight:700;cursor:pointer;background:var(--brand);border:0}.hero-search button:active,.primary-link:active,.state-card button:active{background:var(--brand-dark)}.search-examples{margin:10px 2px 0!important;color:#8b94a5!important;font-size:12px!important}.search-preview{padding:8px;margin-top:10px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 36px #192d4c1f}.preview-result{display:flex;align-items:center;justify-content:space-between;min-height:50px;padding:8px 10px;border-bottom:1px solid #f0f2f5}.preview-result span{min-width:0;overflow:hidden;font-size:14px;text-overflow:ellipsis;white-space:nowrap}.preview-result b{padding:3px 7px;margin-right:8px;color:var(--brand-dark);font-size:11px;background:#eaf2ff;border-radius:5px}.preview-result em{flex:0 0 auto;margin-left:10px;color:var(--brand);font-size:12px;font-style:normal}.preview-all{width:100%;min-height:44px;color:var(--brand);font-weight:700;cursor:pointer;background:transparent;border:0}.search-preview__loading,.empty-inline{padding:16px 10px;color:var(--muted);font-size:14px;text-align:center}.content-section{padding:26px 0;border-top:1px solid var(--line)}.compact-section{padding-bottom:10px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:18px}.section-heading h2,.product-info h2,.installation-note h2{margin:3px 0 0;color:#162034;font-size:21px;letter-spacing:-.02em}.section-heading>a{min-height:40px;color:var(--brand);font-size:13px;line-height:40px;white-space:nowrap}.section-kicker,.context-line{color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.02em}.inline-filter{width:124px;height:40px;padding:0 12px;background:#fff;border:1px solid var(--line);border-radius:10px;outline:0}.series-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.series-card{display:flex;min-height:94px;align-items:center;justify-content:center;flex-direction:column;gap:8px;padding:12px 6px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 4px 14px #1f2f470a}.series-card:active,.model-card:active,.tutorial-card:active{transform:scale(.985)}.series-card strong{font-size:15px}.series-monogram{display:grid;width:38px;height:38px;color:#275a9e;font-weight:800;background:#edf4ff;border-radius:12px;place-items:center}.series-logo{width:38px;height:38px;overflow:hidden;border-radius:9px}.series-logo img{width:100%;height:100%;object-fit:contain}.model-chip-row,.related-scroll{display:flex;gap:12px;padding-bottom:8px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}.model-chip-row::-webkit-scrollbar,.related-scroll::-webkit-scrollbar{display:none}.model-chip{display:flex;min-width:150px;min-height:96px;justify-content:center;flex:0 0 auto;flex-direction:column;padding:14px;background:#fff;border:1px solid var(--line);border-radius:14px;scroll-snap-align:start}.model-chip span,.model-chip em{color:var(--muted);font-size:12px;font-style:normal}.model-chip strong{margin:3px 0 7px;font-size:18px}.consumer-footer{padding:24px 8px calc(16px + env(safe-area-inset-bottom));color:#8a93a2;font-size:12px;line-height:1.7;text-align:center}.breadcrumb{display:flex;min-height:36px;align-items:center;gap:8px;margin-bottom:14px;overflow:hidden;color:var(--muted);font-size:13px;white-space:nowrap}.breadcrumb a{color:var(--brand)}.page-heading{padding:16px 0 26px}.page-heading h1{margin-top:5px;font-size:clamp(28px,7vw,38px);line-height:1.18}.page-heading p,.video-heading p{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.65}.model-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.model-card{position:relative;display:flex;min-height:132px;justify-content:center;flex-direction:column;padding:20px 42px 20px 18px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 5px 18px #1f2f470d}.model-card span,.model-card em{color:var(--muted);font-size:12px;font-style:normal}.model-card strong{margin:4px 0 10px;font-size:21px;line-height:1.25}.model-card b{position:absolute;top:50%;right:16px;color:var(--brand);font-size:30px;font-weight:400;transform:translateY(-50%)}.tutorial-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tutorial-card{display:block;min-width:0;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 5px 18px #1f2f470d}.tutorial-cover{width:100%;aspect-ratio:16 / 9;overflow:hidden;background:#e9eef5}.tutorial-cover img,.smart-image img{display:block;width:100%;height:100%;object-fit:cover}.image-placeholder{display:flex;width:100%;height:100%;align-items:center;justify-content:center;flex-direction:column;gap:8px;color:#6f7c90;background:#eaf0f7}.placeholder-mark{display:grid;width:38px;height:38px;color:#fff;font-size:13px;font-weight:800;background:#7a91ad;border-radius:11px;place-items:center}.image-placeholder small{max-width:90%;overflow:hidden;font-size:11px;text-overflow:ellipsis;white-space:nowrap}.tutorial-card__body{padding:14px}.tutorial-card h3{display:-webkit-box;min-height:44px;margin:5px 0 10px;overflow:hidden;font-size:17px;line-height:1.4;-webkit-box-orient:vertical;-webkit-line-clamp:2}.text-link{display:inline-flex;min-height:34px;align-items:center;color:var(--brand);font-size:13px;font-weight:700}.text-link b{margin-left:4px;font-size:20px;font-weight:400}.search-page__form{margin-bottom:0}.search-group{padding-top:30px}.state-card{padding:42px 22px;margin:18px 0;text-align:center;background:#fff;border:1px solid var(--line);border-radius:16px}.state-card--compact{padding:24px;color:var(--muted);font-size:14px}.state-card--quiet{color:var(--muted);background:transparent;border-style:dashed}.state-card--error{border-color:#f1d8d8}.state-card h1,.state-card h2{margin:0 0 9px;color:var(--ink);font-size:20px}.state-card p{margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.65}.state-card button,.primary-link{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:0 20px;color:#fff;font-weight:700;cursor:pointer;background:var(--brand);border:0;border-radius:10px}.state-actions{display:flex;justify-content:center;gap:10px}.state-actions a{display:inline-flex;min-height:44px;align-items:center;padding:0 18px;color:var(--brand);font-weight:700}.state-icon{margin-bottom:12px;color:#8a98ab;font-size:32px;font-weight:800}.not-found{margin-top:12vh}.video-page{width:min(100% - 24px,920px)}.video-heading{padding:8px 2px 18px}.video-heading h1{margin-top:5px;font-size:clamp(25px,6vw,36px);line-height:1.25}.player-section{margin:0 -4px}.product-info,.installation-note,.related-section{margin-top:28px}.product-info{padding:22px;background:#fff;border:1px solid var(--line);border-radius:16px}.product-info dl{margin:20px 0 0}.product-info dl div{display:grid;grid-template-columns:78px 1fr;padding:10px 0;font-size:14px;border-top:1px solid #edf0f4}.product-info dt{color:var(--muted)}.product-info dd{margin:0;font-weight:650}.product-description{margin:15px 0 0;color:#536075;font-size:14px;line-height:1.75}.installation-note{padding:18px 20px;background:#eef5ff;border-left:4px solid var(--brand);border-radius:4px 12px 12px 4px}.installation-note h2{font-size:17px}.installation-note p{margin:8px 0 0;color:#526076;font-size:14px;line-height:1.75}.related-section{padding-top:28px;border-top:1px solid var(--line)}.tutorial-card--compact{width:220px;flex:0 0 220px;scroll-snap-align:start}.tutorial-card--compact h3{min-height:40px;font-size:15px}.legacy-product{max-width:640px;padding:24px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:18px}.legacy-product__cover{width:calc(100% + 48px);aspect-ratio:16 / 9;margin:-24px -24px 24px;overflow:hidden;border-radius:18px 18px 0 0}.legacy-product h1{margin-top:6px;font-size:28px}.legacy-product p{color:var(--muted);line-height:1.7}.primary-link--large{width:100%;margin-top:14px}.skeleton-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.skeleton-item{padding-bottom:14px;overflow:hidden;background:#fff;border:1px solid #e9edf2;border-radius:16px}.skeleton-block{display:block;margin:12px 14px 0;background:linear-gradient(90deg,#edf0f4 25%,#f7f8fa,#edf0f4 75%);background-size:200% 100%;border-radius:6px;animation:skeleton 1.3s infinite linear}.skeleton-picture{width:100%;aspect-ratio:16 / 9;margin:0;border-radius:0}.skeleton-heading{width:65%;height:18px}.skeleton-copy{width:42%;height:12px}@keyframes skeleton{to{background-position:-200% 0}}@media(min-width:680px){.page-container{width:min(100% - 64px,1040px)}.home-page{padding-top:48px}.home-hero{max-width:760px;padding:40px 0 36px}.series-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.tutorial-grid,.model-grid,.skeleton-list{grid-template-columns:repeat(3,minmax(0,1fr))}.video-page{width:min(100% - 64px,920px)}}@media(max-width:374px){.page-container{width:min(100% - 24px,1040px)}.hero-search{padding-left:12px}.hero-search button{min-width:66px;padding:0 13px}.tutorial-grid,.model-grid{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
