:root{--primary:#1464f4;--primary-dark:#074bd0;--ink:#09162e;--muted:#60708e;--line:#d8e3f5;--soft:#f5f8fd;--white:#fff;--shadow:0 14px 36px rgba(35,82,153,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;background:#fff}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.site-header{height:88px;padding:0 clamp(24px,4vw,64px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e6edf8;background:rgba(255,255,255,.92);position:relative;z-index:2}.brand{display:flex;flex-direction:column;letter-spacing:.18em}.brand strong{font-size:25px}.brand span{font-size:15px;color:#415373;margin-top:3px}.support-button{display:flex;align-items:center;gap:9px;height:48px;padding:0 24px;border:1.5px solid var(--primary);border-radius:11px;color:var(--primary);font-weight:700;transition:.2s}.support-button:hover{color:#fff;background:var(--primary);transform:translateY(-1px)}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.hero{min-height:370px;padding:76px 24px 58px;text-align:center;position:relative;overflow:hidden;background:linear-gradient(140deg,#f9fbff 12%,#f3f7fd 55%,#f9fbff)}.hero:before,.hero:after{content:"";position:absolute;left:-5%;right:-5%;height:180px;border-radius:50%;border-top:42px solid rgba(225,234,249,.55);transform:rotate(2deg);bottom:-120px}.hero:after{bottom:-155px;border-top-width:28px;transform:rotate(-4deg)}.hero-content{position:relative;z-index:1;max-width:1000px;margin:auto}.eyebrow,.section-kicker{margin:0 0 10px;color:var(--primary);font-weight:700;font-size:12px;letter-spacing:.18em}.hero h1{margin:0;font-size:clamp(38px,4vw,56px);letter-spacing:.04em}.hero-subtitle{margin:12px 0 24px;color:var(--muted);font-size:20px}.search-box{height:96px;max-width:980px;margin:0 auto;padding:15px 16px 15px 30px;display:flex;align-items:center;gap:18px;border:1.5px solid #c5d7f5;border-radius:20px;background:rgba(255,255,255,.92);box-shadow:0 15px 45px rgba(67,103,164,.08)}.search-box>svg{width:35px;height:35px;color:#304a78;flex:none}.search-box input{border:0;outline:0;min-width:0;flex:1;font-size:19px;color:var(--ink);background:transparent}.search-box input::placeholder{color:#8995aa}.search-box button{height:64px;min-width:190px;border:0;border-radius:14px;background:linear-gradient(135deg,#176cff,#0b55e9);color:#fff;font-size:19px;font-weight:700;cursor:pointer;box-shadow:0 9px 20px rgba(20,100,244,.22);transition:.2s}.search-box button:hover{background:var(--primary-dark);transform:translateY(-1px)}.search-message{height:20px;margin-top:10px;color:var(--muted)}.resource-section{padding:34px 7vw 78px}.section-heading{text-align:center;margin-bottom:24px}.section-heading h2{font-size:35px;margin:0 0 5px}.section-heading>p:last-child{color:var(--muted);margin:0}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1340px;margin:auto}.resource-card{min-height:130px;padding:24px;display:flex;align-items:center;gap:22px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 6px 17px rgba(34,75,140,.06);transition:.22s}.resource-card:hover{border-color:#8fb5fa;box-shadow:var(--shadow);transform:translateY(-4px)}.card-icon,.category-icon{width:74px;height:74px;display:grid;place-items:center;flex:none;border-radius:20px;background:linear-gradient(145deg,#f1f6ff,#e8f0fc);color:var(--primary)}.card-icon svg,.category-icon svg{width:38px;height:38px}.card-copy{min-width:0;flex:1}.card-copy h3{font-size:20px;margin:0 0 8px}.card-copy p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}.card-arrow{font-size:32px;color:var(--primary);transition:.2s}.resource-card:hover .card-arrow{transform:translateX(5px)}footer{text-align:center;padding:28px;color:#8190a8;border-top:1px solid #e7edf6;font-size:13px}.category-page{min-height:calc(100vh - 173px);background:var(--soft)}.category-hero{padding:32px max(7vw,24px) 44px;background:linear-gradient(135deg,#fff,#f2f7ff)}.breadcrumb{display:flex;gap:10px;color:#7a89a2;font-size:14px;margin-bottom:30px}.breadcrumb a:hover{color:var(--primary)}.category-title-row{display:flex;gap:22px;align-items:center;max-width:1180px;margin:auto}.category-title-row h1{font-size:40px;margin:0 0 7px}.category-title-row p:last-child{margin:0;color:var(--muted)}.category-hero .search-box{margin:30px auto 0}.search-box.compact{height:68px;padding:9px 10px 9px 22px;max-width:1180px;border-radius:14px}.search-box.compact>svg{width:25px;height:25px}.search-box.compact button{height:48px;min-width:120px;border-radius:9px;font-size:16px}.content-section{max-width:1180px;margin:auto;padding:42px 24px 80px}.content-toolbar{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}.content-toolbar h2{margin:0 0 5px;font-size:25px}.content-toolbar p{margin:0;color:var(--muted);font-size:14px}.content-toolbar select{border:1px solid var(--line);border-radius:9px;background:#fff;padding:10px 34px 10px 14px;color:#4a5a73}.article-list{display:grid;gap:14px}.article-item{padding:22px 24px;background:#fff;border:1px solid #e0e8f4;border-radius:12px;display:flex;align-items:center;gap:20px;transition:.2s}.article-item:hover{border-color:#a8c5f6;transform:translateX(3px)}.article-type{font-size:12px;font-weight:700;color:var(--primary);padding:6px 9px;border-radius:6px;background:#edf4ff;flex:none}.article-info{flex:1}.article-info h3{margin:0 0 7px;font-size:18px}.article-info p{margin:0;color:var(--muted);font-size:14px}.article-meta{color:#8190a8;font-size:13px;white-space:nowrap}.article-arrow{color:var(--primary);font-size:25px}.empty-state{text-align:center;padding:70px;background:#fff;border:1px dashed var(--line);border-radius:12px;color:var(--muted)}.empty-state strong{display:block;color:var(--ink);font-size:20px}.empty-state p{margin-bottom:0}
@media(max-width:900px){.resource-grid{grid-template-columns:repeat(2,1fr)}.hero{padding-top:60px}.search-box{height:82px}.search-box button{height:56px;min-width:150px}}
@media(max-width:620px){.site-header{height:74px;padding:0 18px}.brand strong{font-size:20px}.brand span{font-size:12px}.support-button{height:42px;padding:0 14px}.hero{padding:54px 18px 42px;min-height:auto}.hero h1{font-size:36px}.hero-subtitle{font-size:16px;line-height:1.6}.eyebrow{display:none}.search-box{height:auto;padding:13px 14px;gap:10px;flex-wrap:wrap}.search-box>svg{width:25px;height:25px}.search-box input{font-size:15px}.search-box button{width:100%;height:48px;min-width:0}.resource-section{padding:38px 18px 58px}.section-heading h2{font-size:28px}.resource-grid{grid-template-columns:1fr;gap:13px}.resource-card{min-height:108px;padding:18px}.card-icon{width:60px;height:60px;border-radius:15px}.category-hero{padding:24px 18px 35px}.category-title-row{align-items:flex-start}.category-title-row h1{font-size:31px}.category-icon{width:64px;height:64px}.search-box.compact{flex-wrap:nowrap;height:58px;padding:8px 8px 8px 14px}.search-box.compact button{width:auto;height:42px;min-width:76px}.content-section{padding:30px 16px 55px}.article-item{align-items:flex-start;padding:18px;gap:12px;flex-wrap:wrap}.article-info{min-width:70%}.article-meta{margin-left:52px}.content-toolbar select{max-width:120px}}

.document-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;max-width:1380px}.document-sidebar{align-self:start;position:sticky;top:20px;background:#fff;border:1px solid #dde7f4;border-radius:14px;overflow:hidden;box-shadow:0 8px 24px rgba(35,82,153,.06)}.sidebar-heading{height:62px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e7edf6;font-weight:700}.sidebar-heading button{border:0;background:transparent;color:var(--primary);font-size:13px;cursor:pointer}.document-tree{padding:10px}.tree-group{border-radius:9px;margin-bottom:4px}.tree-toggle{width:100%;padding:12px 10px;border:0;background:transparent;display:flex;align-items:center;gap:8px;text-align:left;color:#263750;font-weight:700;cursor:pointer;border-radius:8px}.tree-toggle:hover,.tree-toggle.active{background:#edf4ff;color:var(--primary)}.tree-chevron{width:17px;transition:.2s;font-size:13px}.tree-group.open .tree-chevron{transform:rotate(90deg)}.tree-children{display:none;padding:2px 0 8px 27px}.tree-group.open .tree-children{display:grid}.tree-document{border:0;background:transparent;padding:9px 9px;text-align:left;color:#61708a;cursor:pointer;border-left:1px solid #dce6f4;font-size:13px;line-height:1.4}.tree-document:hover,.tree-document.active{color:var(--primary);background:#f5f8fd}.document-main{min-width:0}.article-item{cursor:default}.article-actions{display:flex;gap:8px}.article-actions button{height:36px;padding:0 13px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:700}.preview-button{border:1px solid #b9cff5;background:#fff;color:var(--primary)}.preview-button:hover{background:#edf4ff}.article-download{border:0;background:var(--primary);color:#fff}.article-download:hover{background:var(--primary-dark)}.preview-modal[hidden]{display:none}.preview-modal{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:30px}.modal-backdrop{position:absolute;inset:0;background:rgba(6,19,43,.55);backdrop-filter:blur(3px)}.preview-panel{position:relative;width:min(900px,100%);max-height:90vh;display:flex;flex-direction:column;background:#fff;border-radius:16px;box-shadow:0 28px 80px rgba(0,18,50,.3);overflow:hidden}.preview-header{padding:22px 26px;display:flex;justify-content:space-between;align-items:start;border-bottom:1px solid #e5ebf4}.preview-header h2{margin:5px 0 0;font-size:22px}.preview-label{font-size:12px;color:var(--primary);font-weight:700;letter-spacing:.12em}.modal-close{border:0;background:#f0f4fa;width:36px;height:36px;border-radius:50%;font-size:25px;color:#52617a;cursor:pointer}.preview-body{padding:32px 42px;overflow:auto;color:#34445d;line-height:1.9}.preview-body h3{color:var(--ink);margin:22px 0 6px}.preview-body h3:first-child{margin-top:0}.preview-body .preview-note{padding:14px 16px;border-left:3px solid var(--primary);background:#f1f6ff;color:#52627b}.preview-footer{padding:16px 26px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid #e5ebf4;background:#fafcff;text-align:left}.download-button{border:0;border-radius:9px;padding:11px 20px;background:var(--primary);color:#fff;font-weight:700;cursor:pointer}
@media(max-width:900px){.document-layout{grid-template-columns:230px minmax(0,1fr);gap:18px}.article-item{flex-wrap:wrap}.article-actions{width:100%;justify-content:flex-end}}
@media(max-width:700px){.document-layout{display:block}.document-sidebar{position:static;margin-bottom:24px}.document-tree{max-height:300px;overflow:auto}.article-meta{margin-left:0}.article-actions{justify-content:flex-start;padding-left:50px}.preview-modal{padding:12px}.preview-body{padding:24px 20px}.preview-header{padding:18px}.preview-footer{padding:14px 18px}}

/* 首页产品资源切换 */
.product-resources{position:relative;overflow:hidden;transition:background .65s cubic-bezier(.2,.8,.2,1)}.product-resources:before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(circle at 24% 52%,var(--product-glow),transparent 34%);opacity:.8;transition:.6s}.yingao-theme{--product-accent:#39765e;--product-deep:#173d31;--product-soft:#edf6f1;--product-glow:rgba(61,124,97,.16);background:linear-gradient(135deg,#f8fbf9 0%,#fff 52%,#f1f7f4 100%)}.tieao-theme{--product-accent:#a0692e;--product-deep:#533618;--product-soft:#fbf3e7;--product-glow:rgba(178,113,48,.18);background:linear-gradient(135deg,#fdf9f3 0%,#fff 52%,#faf1e5 100%)}.product-resources .section-heading{position:relative;z-index:1}.product-resources .section-kicker{color:var(--product-accent);transition:color .4s}.product-resource-layout{position:relative;z-index:1;display:grid;grid-template-columns:210px minmax(0,1fr);gap:34px;max-width:1400px;margin:auto}.product-switcher{align-self:stretch;position:relative;padding:8px 0 8px 20px;display:grid;align-content:center;gap:14px}.switcher-rail{position:absolute;left:0;top:13%;bottom:13%;width:2px;background:rgba(76,91,85,.15)}.switcher-rail span{position:absolute;left:-2px;top:0;width:6px;height:50%;border-radius:9px;background:var(--product-accent);box-shadow:0 0 20px var(--product-accent);transition:transform .55s cubic-bezier(.16,1,.3,1),background .4s}.product-switcher.is-second .switcher-rail span{transform:translateY(100%)}.product-option{position:relative;min-height:120px;padding:20px 18px;border:1px solid transparent;border-radius:15px;background:transparent;display:grid;text-align:left;color:#728077;cursor:pointer;transition:all .45s cubic-bezier(.16,1,.3,1);overflow:hidden}.product-option:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,var(--product-soft),rgba(255,255,255,.8));opacity:0;transform:translateX(-15%);transition:.4s}.product-option>*{position:relative}.product-option:hover,.product-option.active{color:var(--product-deep);transform:translateX(7px);border-color:color-mix(in srgb,var(--product-accent) 25%,transparent);box-shadow:0 14px 35px rgba(27,54,43,.08)}.product-option:hover:before,.product-option.active:before{opacity:1;transform:translateX(0)}.product-index{font-family:Georgia,serif;font-size:13px;color:var(--product-accent)}.product-name{font-size:27px;font-weight:800;letter-spacing:.14em;margin-top:4px}.product-en{font-size:9px;letter-spacing:.2em;opacity:.66}.product-stage{display:grid;grid-template-columns:minmax(270px,.72fr) minmax(600px,1.8fr);gap:24px;align-items:stretch}.product-visual{position:relative;min-height:340px;display:grid;place-items:center;border-radius:22px;background:linear-gradient(145deg,rgba(255,255,255,.7),var(--product-soft));border:1px solid rgba(255,255,255,.85);box-shadow:inset 0 0 60px rgba(255,255,255,.8),0 20px 55px rgba(31,57,48,.08);overflow:hidden;transition:background .5s}.product-visual:after{content:"";position:absolute;left:10%;right:10%;bottom:12%;height:15px;border-radius:50%;background:rgba(25,39,32,.2);filter:blur(12px);transform:scale(.8)}.product-visual img{position:relative;z-index:2;width:115%;max-height:315px;object-fit:contain;mix-blend-mode:multiply;filter:drop-shadow(0 20px 18px rgba(26,40,34,.2));transition:opacity .25s,transform .7s cubic-bezier(.16,1,.3,1),filter .5s;animation:productFloat 5s ease-in-out infinite}.product-visual.switching img{opacity:0;transform:translateX(30px) scale(.94)}.visual-orbit{position:absolute;width:250px;height:250px;border:1px solid color-mix(in srgb,var(--product-accent) 22%,transparent);border-radius:50%;animation:orbitPulse 5s ease-in-out infinite}.visual-orbit:before,.visual-orbit:after{content:"";position:absolute;border-radius:50%;border:1px dashed color-mix(in srgb,var(--product-accent) 24%,transparent)}.visual-orbit:before{inset:18px}.visual-orbit:after{inset:-24px}.visual-model{position:absolute;z-index:3;left:18px;bottom:16px;font-size:9px;letter-spacing:.2em;color:var(--product-accent)}.product-stage .resource-grid{grid-template-columns:repeat(2,1fr);gap:14px}.product-stage .resource-card{min-height:104px;padding:18px;gap:15px;background:rgba(255,255,255,.78);backdrop-filter:blur(10px);transform-origin:left center;animation:cardReveal .55s both}.product-stage .resource-card:nth-child(2){animation-delay:.05s}.product-stage .resource-card:nth-child(3){animation-delay:.1s}.product-stage .resource-card:nth-child(4){animation-delay:.15s}.product-stage .resource-card:nth-child(5){animation-delay:.2s}.product-stage .resource-card:nth-child(6){animation-delay:.25s}.product-stage .resource-card:hover{border-color:var(--product-accent);box-shadow:0 15px 34px var(--product-glow)}.product-stage .card-icon{width:57px;height:57px;border-radius:15px;color:var(--product-accent);background:var(--product-soft);transition:.4s}.product-stage .card-icon svg{width:31px;height:31px}.product-stage .card-copy h3{font-size:17px;margin-bottom:5px}.product-stage .card-copy p{font-size:12px}.product-stage .card-arrow{font-size:24px;color:var(--product-accent)}
@keyframes productFloat{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-10px) rotate(1deg)}}@keyframes orbitPulse{0%,100%{transform:scale(.96) rotate(0);opacity:.55}50%{transform:scale(1.04) rotate(15deg);opacity:1}}@keyframes cardReveal{from{opacity:0;transform:translateX(18px) scale(.98)}to{opacity:1;transform:none}}
@media(max-width:1180px){.product-resource-layout{grid-template-columns:180px minmax(0,1fr);gap:20px}.product-stage{grid-template-columns:1fr}.product-visual{min-height:235px}.product-visual img{max-height:220px;width:70%}}
@media(max-width:760px){.product-resource-layout{display:block}.product-switcher{grid-template-columns:1fr 1fr;padding:0;margin-bottom:18px}.switcher-rail{left:0;right:0;top:auto;bottom:0;width:auto;height:2px}.switcher-rail span{width:50%;height:5px;top:-2px}.product-switcher.is-second .switcher-rail span{transform:translateX(100%)}.product-option{min-height:88px;padding:12px 15px}.product-option:hover,.product-option.active{transform:translateY(-3px)}.product-name{font-size:22px}.product-stage{display:block}.product-visual{min-height:225px;margin-bottom:18px}.product-visual img{width:90%;max-height:210px}.product-stage .resource-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.product-visual img,.visual-orbit,.product-stage .resource-card{animation:none}.product-option,.product-resources,.switcher-rail span{transition:none}}
.product-tagline{position:absolute;z-index:4;left:20px;right:20px;top:18px;display:grid;text-align:left}.product-tagline strong{max-width:310px;color:var(--product-deep);font-size:15px;line-height:1.55;letter-spacing:.04em;text-wrap:balance;text-shadow:0 1px 0 rgba(255,255,255,.8);transition:color .4s}.product-visual img{max-height:285px;margin-top:34px}@media(max-width:1180px){.product-tagline{top:14px}.product-visual img{margin-top:30px}}@media(max-width:760px){.product-tagline strong{font-size:13px}.product-visual img{margin-top:35px}}

/* 搜索区到资源区的连续过渡 */
.hero{padding-bottom:108px;background:linear-gradient(180deg,#f9fbff 0%,#f4f8fe 64%,#eef4fb 100%)}.hero:before{bottom:-104px;opacity:.72}.hero:after{bottom:-139px;opacity:.82}.hero .search-box{position:relative;transform:translateY(10px);box-shadow:0 20px 55px rgba(42,84,151,.12),0 0 0 8px rgba(255,255,255,.32);transition:transform .3s,box-shadow .3s}.hero .search-box:focus-within{transform:translateY(7px);box-shadow:0 25px 65px rgba(26,94,202,.17),0 0 0 9px rgba(255,255,255,.5)}.hero + .product-resources{margin-top:-48px;padding-top:82px;border-radius:48px 48px 0 0;box-shadow:0 -20px 55px rgba(66,93,133,.06)}.hero + .product-resources:after{content:"";position:absolute;z-index:0;left:12%;right:12%;top:0;height:82px;pointer-events:none;background:radial-gradient(ellipse at center top,rgba(255,255,255,.95),rgba(255,255,255,0) 70%)}.hero + .product-resources .section-heading:before{content:"";display:block;width:42px;height:4px;margin:0 auto 20px;border-radius:8px;background:var(--product-accent);opacity:.45;transition:background .45s,width .45s}.hero + .product-resources:hover .section-heading:before{width:68px;opacity:.7}
@media(max-width:620px){.hero{padding-bottom:86px}.hero .search-box{transform:translateY(4px)}.hero + .product-resources{margin-top:-34px;padding-top:62px;border-radius:30px 30px 0 0}.hero + .product-resources:after{height:60px}}
.header-actions{display:flex;align-items:center;gap:12px}.language-switch{height:42px;min-width:74px;padding:4px 7px;display:flex;align-items:center;justify-content:center;gap:5px;border:1px solid #d7e1ef;border-radius:10px;background:#fff;color:#8a96aa;font-size:12px;transition:.2s}.language-switch strong{padding:5px 7px;border-radius:6px;background:var(--ink);color:#fff;font-size:11px}.language-switch:hover{border-color:var(--primary);transform:translateY(-1px)}.language-switch.english-active span{padding:5px 7px;border-radius:6px;background:var(--ink);color:#fff;font-weight:700}.language-switch.english-active strong{padding:0;background:transparent;color:#8a96aa}.english-brand{letter-spacing:.08em}.english-brand strong{font-size:20px}.english-brand span{font-size:10px;letter-spacing:.12em}.product-name{line-height:1.15}@media(max-width:620px){.header-actions{gap:6px}.language-switch{min-width:58px;height:38px}.support-button{font-size:13px}.english-brand span{display:none}.english-brand strong{font-size:15px}.site-header .support-button svg{display:none}}
.language-switch{min-width:auto;padding:5px 12px 5px 6px;gap:8px;color:#43516a}.language-switch span{min-width:30px;height:30px;padding:0 6px;display:grid;place-items:center;border-radius:7px;background:var(--ink);color:#fff;font-size:11px;font-weight:800;letter-spacing:.02em}.language-switch strong{padding:0;background:transparent;color:inherit;font-size:12px;font-weight:700}.language-switch:hover{color:var(--primary);background:#f8faff;box-shadow:0 7px 18px rgba(23,54,105,.08)}@media(max-width:620px){.language-switch{padding-right:8px}.language-switch strong{display:none}.language-switch span{min-width:28px;height:28px}}

/* 二级页面跟随产品主题 */
.product-category-page{--category-accent:#39765e;--category-dark:#173d31;--category-soft:#edf6f1;--category-line:#cfe2d8;--primary:var(--category-accent);--primary-dark:var(--category-dark)}.product-category-page.category-tieao{--category-accent:#a0692e;--category-dark:#533618;--category-soft:#fbf3e7;--category-line:#ead5b9}.product-category-page .category-page{background:linear-gradient(135deg,var(--category-soft),#f7f9fc 44%,#fff)}.product-category-page .category-hero{position:relative;overflow:hidden;background:linear-gradient(130deg,#fff 5%,var(--category-soft) 100%);border-bottom:1px solid var(--category-line)}.product-category-page .category-hero:after{content:"";position:absolute;right:-80px;top:-150px;width:430px;height:430px;border:1px solid var(--category-line);border-radius:50%;box-shadow:0 0 0 45px color-mix(in srgb,var(--category-soft) 65%,transparent),0 0 0 90px color-mix(in srgb,var(--category-soft) 35%,transparent);pointer-events:none}.product-category-page .category-hero>*{position:relative;z-index:1}.product-category-page .category-icon{color:var(--category-accent);background:linear-gradient(145deg,#fff,var(--category-soft));box-shadow:0 12px 30px color-mix(in srgb,var(--category-accent) 15%,transparent)}.product-category-page .section-kicker,.product-category-page .breadcrumb a:hover{color:var(--category-accent)}.product-category-page .search-box{border-color:var(--category-line)}.product-category-page .search-box button,.product-category-page .article-download,.product-category-page .download-button{background:linear-gradient(135deg,var(--category-accent),var(--category-dark));box-shadow:0 9px 20px color-mix(in srgb,var(--category-accent) 22%,transparent)}.product-category-page .document-sidebar{border-color:var(--category-line)}.product-category-page .sidebar-heading button,.product-category-page .tree-toggle:hover,.product-category-page .tree-toggle.active,.product-category-page .tree-document:hover,.product-category-page .tree-document.active,.product-category-page .article-type,.product-category-page .preview-button,.product-category-page .article-arrow{color:var(--category-accent)}.product-category-page .tree-toggle:hover,.product-category-page .tree-toggle.active,.product-category-page .article-type{background:var(--category-soft)}.product-category-page .tree-document.active{border-left-color:var(--category-accent)}.product-category-page .article-item:hover{border-color:var(--category-line);box-shadow:0 10px 28px color-mix(in srgb,var(--category-accent) 10%,transparent)}.product-category-page .preview-button{border-color:var(--category-line)}.product-category-page .preview-button:hover,.product-category-page .preview-note{background:var(--category-soft)}.product-category-page .preview-note{border-left-color:var(--category-accent)}.product-category-page .preview-label{color:var(--category-accent)}

/* 品牌 Logo */
.site-header .brand{display:flex;align-items:center;letter-spacing:0}
.site-header .brand img{display:block;width:auto;height:58px;max-width:min(330px,42vw);object-fit:contain}
@media(max-width:620px){.site-header .brand img{height:43px;max-width:42vw}}

/* 首页中英文资料切换 */
.resource-language-switch{position:relative;width:246px;height:46px;padding:4px;display:grid;grid-template-columns:1fr 1fr;align-items:center;border:1px solid #d7e1ef;border-radius:12px;background:#f7f9fc;color:#64728a;box-shadow:0 5px 16px rgba(20,48,91,.06);overflow:hidden;isolation:isolate}.resource-language-switch:before{content:"";position:absolute;z-index:-1;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:9px;background:linear-gradient(135deg,#18335f,#0c1b34);box-shadow:0 6px 14px rgba(12,31,65,.2);transition:transform .38s cubic-bezier(.22,.8,.24,1)}.resource-language-switch.en-active:before{transform:translateX(100%);animation:language-slide-right .42s cubic-bezier(.22,.8,.24,1)}.resource-language-switch.zh-active:before{animation:language-slide-left .42s cubic-bezier(.22,.8,.24,1)}.language-option{position:relative;z-index:1;text-align:center;color:#65738a;font-size:12px;font-weight:700;white-space:nowrap;transition:color .3s,transform .3s}.language-option.active{color:#fff;transform:translateY(-1px)}.resource-language-switch:hover{border-color:#a9bee0;box-shadow:0 8px 22px rgba(20,62,130,.1)}@keyframes language-slide-right{from{transform:translateX(0)}to{transform:translateX(100%)}}@keyframes language-slide-left{from{transform:translateX(100%)}to{transform:translateX(0)}}@media(max-width:720px){.resource-language-switch{width:190px;height:40px}.language-option{font-size:10px}.support-button{padding:0 12px}}@media(max-width:520px){.resource-language-switch{width:154px}.language-option{font-size:9px}.site-header .support-button{display:none}}

/* 首页搜索结果下拉面板 */
.hero{z-index:30!important;isolation:isolate}.hero + .product-resources{z-index:1}.search-results-dropdown{z-index:50!important;background:#fff!important}
.hero{overflow:visible;z-index:1}.hero-content{z-index:3}.search-results-dropdown{position:absolute;z-index:8;top:calc(100% + 16px);left:10px;right:10px;max-width:960px;margin:auto;text-align:left;border:1px solid #d9e4f3;border-radius:18px;background:rgba(255,255,255,.98);box-shadow:0 24px 65px rgba(31,62,112,.2);overflow:hidden;animation:search-results-in .2s ease-out}.search-results-header{height:54px;padding:0 14px 0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e7edf6;background:#f9fbff}.search-results-header .search-message{height:auto;margin:0;color:#52627a;font-size:14px}.search-results-toggle{display:flex;align-items:center;gap:8px;padding:8px 10px;border:0;border-radius:9px;background:transparent;color:#31537f;font-size:13px;font-weight:700;cursor:pointer}.search-results-toggle:hover{background:#edf4ff}.search-results-toggle i{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}.search-results-dropdown.expanded .search-results-toggle i{transform:rotate(225deg) translate(-2px,-2px)}.search-results-list{max-height:355px;overflow-y:auto;overscroll-behavior:contain;scrollbar-color:#a9bddb #eef3f9;transition:max-height .25s ease}.search-results-dropdown.expanded .search-results-list{max-height:min(65vh,680px)}.search-result-item{padding:15px 20px;display:flex;align-items:center;gap:14px;border-bottom:1px solid #edf1f7}.search-result-item:last-child{border-bottom:0}.search-result-product{flex:none;padding:5px 9px;border-radius:7px;background:#edf4ff;color:#245aa9;font-size:12px;font-weight:800}.search-result-copy{min-width:0;flex:1}.search-result-copy strong{display:block;margin-bottom:4px;color:#14213a;font-size:16px}.search-result-copy p{margin:0;color:#697890;font-size:13px;line-height:1.5}.search-results-empty{padding:34px 20px;text-align:center;color:#77869c}@keyframes search-results-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}@media(max-width:620px){.search-results-dropdown{top:calc(100% + 10px);left:0;right:0;border-radius:14px}.search-results-header{height:48px;padding-left:14px}.search-results-list{max-height:330px}.search-result-item{align-items:flex-start;padding:13px 14px}.search-result-copy strong{font-size:15px}.search-results-toggle span{display:none}}
.search-result-item{transition:background .18s,transform .18s}.search-result-item:hover,.search-result-item:focus-visible{background:#f4f8ff;transform:translateX(3px);outline:0}.search-result-arrow{flex:none;color:#245aa9;font-size:22px;transition:transform .18s}.search-result-item:hover .search-result-arrow,.search-result-item:focus-visible .search-result-arrow{transform:translateX(3px)}
/* Keep resource titles aligned when type labels have different lengths. */
.article-type{width:88px;text-align:center}