/* Shared reading and navigation refinements. */
:root{--ink:#182333;--muted:#657386;--brand:#087bc8;--line:#e5eaf0;--wash:#f6f8fb}
body{line-height:1.85}a,button,input{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #87c8f3;outline-offset:4px} [hidden]{display:none!important}
.site-header{background:#ffffffed;backdrop-filter:blur(18px)}.site-nav{max-width:1180px;min-height:76px;padding:14px 32px;gap:26px}.brand{font-size:22px;letter-spacing:-.8px;gap:5px;white-space:nowrap}.brand .brand-dot{width:13px;height:13px;border-radius:4px;margin-right:6px}.site-nav nav{gap:24px;white-space:nowrap}.site-nav nav a[aria-current=page]{color:var(--brand);font-weight:700}.nav-actions{margin-left:auto}.nav-btn{min-height:38px;min-width:38px;border-radius:10px}.menu-toggle{display:none;border:1px solid var(--line);background:white;padding:6px 12px;color:var(--ink);border-radius:9px;font-size:13px}
.wrap{max-width:1080px;padding-left:32px;padding-right:32px}.hero{padding:86px 32px 64px;background:radial-gradient(ellipse at 85% 0,#e8f4fe 0,transparent 55%),linear-gradient(180deg,#f7faff,#fff);border-bottom:0}.hero>*{max-width:1016px}.hero h1{font-size:clamp(34px,4.3vw,54px);line-height:1.25;letter-spacing:-1.8px;max-width:1016px}.hero h1 .accent{display:inline-block;margin-top:10px;font-size:.69em;letter-spacing:-.8px;color:#67798e}.hero .sub{max-width:1016px;font-size:16px;margin-top:24px;line-height:1.9}.hero .tagline{max-width:1016px;margin-top:12px}.hero .actions{margin-top:28px;gap:12px}.button{border-radius:10px;padding:12px 22px;font-size:14px;min-height:44px}.hero .pre-row{display:none}.stats-row{background:#f7f9fc;border:1px solid var(--line);border-radius:16px;padding:24px 8px;margin:24px 0 45px}.stat .num{font-size:29px;letter-spacing:-1px}.stat .label{font-size:12px}.disclaimer{margin-top:10px;opacity:.85;font-size:12px}.section{padding-top:22px;padding-bottom:30px}.section h2{letter-spacing:-.5px}.resource-card{border:1px solid var(--line);border-radius:14px;padding:23px;box-shadow:none;transition:border-color .18s,background .18s}.resource-card:hover{border-color:#b9d6eb;background:#f7fbff;transform:none;box-shadow:none;text-decoration:none}.rc-body h3{font-size:17px}.rc-body p{line-height:1.8;color:var(--muted)}.rc-icon{border-radius:10px}.notice-band{background:#f1f6fc}.site-footer{background:#fafbfd}.footer-inner{max-width:1080px}.footer-nav{flex-wrap:wrap}
.page-head{padding:26px 0 30px;margin-bottom:18px}.page-head h1{font-size:clamp(27px,3.1vw,40px);line-height:1.35;letter-spacing:-1px}.page-head p{font-size:15px;line-height:1.9;max-width:790px}.breadcrumb{font-size:12px;margin-top:25px}.content{max-width:100%;font-size:15px;line-height:1.9;position:relative}.content h2{font-size:24px;margin:40px 0 20px;padding-top:26px;line-height:1.5;scroll-margin-top:105px}.content h3{font-size:18px;scroll-margin-top:105px}.content p{line-height:1.95;margin-bottom:16px}.content li{line-height:1.85}.callout{border-radius:12px;padding:18px 20px;margin:22px 0}.callout p{margin:0}.toc{border:1px solid var(--line);border-radius:14px;padding:20px;background:#f8fafc;margin-bottom:30px}.toc ol{margin:12px 0 0 20px}.toc a{font-size:13px;display:inline-block;padding:4px 0}.toc a.current{font-weight:700;color:var(--brand)}.content .dl-list{margin:14px 0 28px;padding:0}.dl-list li{border-radius:10px;padding:15px 17px;margin-bottom:8px;flex-wrap:wrap;gap:10px}.dl-list .dl-name{flex:1;min-width:180px;overflow-wrap:anywhere;line-height:1.8}.dl-list a{padding:8px 14px;border-radius:7px}.table-wrap{border-radius:12px}.table-wrap table{min-width:560px}.table-wrap th,.table-wrap td{padding:15px 18px}.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#f7faff;margin:0 0 28px}.filter-bar label{font-size:13px;font-weight:600;flex:1;min-width:200px}.filter-bar input{display:block;margin-top:6px;width:100%;border:1px solid #d6e0e9;background:#fff;padding:11px 13px;border-radius:8px;color:var(--ink)}.filter-count{font-size:12px;color:var(--muted)}.filter-empty{padding:30px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:12px}.reading-progress{position:fixed;left:0;top:0;height:3px;background:var(--brand);z-index:100;transform-origin:left;transform:scaleX(0);width:100%;pointer-events:none}.read-meta{font-size:12px;color:var(--muted);margin-top:15px}.search-box{border-radius:18px;overflow:hidden;box-shadow:0 24px 90px #142c4c26}.search-input-wrap input{min-width:0}.search-close{border:0;background:#eef2f7;padding:5px 10px;border-radius:7px;font-size:13px;color:var(--muted)}.sr-item{padding:16px 22px}.sr-item:focus{background:#edf6ff}.sr-title em{font-size:11px}.search-overlay{overscroll-behavior:contain}.search-overlay.open{display:flex}.search-input-wrap kbd{display:none}.back-top{border-radius:12px}
@media(min-width:1250px){.reading-page>.wrap{max-width:1120px;padding-right:300px}.reading-page .toc{position:fixed;top:125px;left:calc(50% + 310px);width:220px;max-height:calc(100vh - 160px);overflow:auto;margin:0}.reading-page .page-head h1{font-size:36px}}
@media(max-width:1000px){.site-nav{gap:12px;padding:12px 22px}.site-nav nav{gap:15px;font-size:12px}.back-home{display:none}}
@media(max-width:760px){.site-nav{flex-wrap:wrap;min-height:68px}.menu-toggle{display:inline-block}.site-nav nav{display:none;width:100%;order:3;flex-wrap:wrap;gap:6px;padding-top:12px;border-top:1px solid var(--line)}.site-nav.menu-open nav{display:flex}.site-nav nav a{padding:10px 12px;background:#f5f8fc;border-radius:8px;font-size:13px}.brand{font-size:20px}.nav-actions{gap:6px}.wrap{padding:0 22px}.hero{padding:48px 22px 35px}.hero h1{font-size:35px;letter-spacing:-1px}.hero h1 .accent{font-size:23px;line-height:1.5}.hero .sub{font-size:14px}.hero .tagline{font-size:12px}.hero .actions{gap:10px}.stats-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:28px}.stat{border:0!important}.page-head{padding:20px 0}.page-head h1{font-size:29px}.content h2{font-size:21px}.content .toc{position:static;max-height:260px;overflow:auto}.resource-card{padding:20px}.content .callout{padding:16px}.dl-list li{padding:14px}.dl-list .dl-name{flex-basis:100%}.dl-list a{min-height:40px}.filter-bar{padding:14px}.search-box{width:calc(100vw - 24px);max-height:85vh}.search-overlay{padding-top:6vh}.footer-inner{padding:30px 22px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

@media(min-width:761px){.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.stat{text-align:center;border-right:1px solid var(--line)}.stat:last-child{border-right:0}}/* Audit fixes: native modal isolation and explicit download filtering controls. */
dialog.search-overlay{position:fixed;inset:0;width:100vw;height:100vh;max-width:none;max-height:none;margin:0;padding:8vh 12px;border:0;background:transparent;overflow:auto;align-items:flex-start;justify-content:center}dialog.search-overlay:not([open]){display:none}dialog.search-overlay::backdrop{background:#10223766;backdrop-filter:blur(5px)}dialog .search-box{width:min(650px,100%);margin:0;max-height:82vh;background:#fff}dialog .search-results{max-height:62vh;overflow-y:auto}dialog .search-input-wrap input{flex:1;width:100%;border:0;font:inherit;outline:none;padding:10px 0}dialog .search-help{font-size:11px;color:var(--muted);padding:8px 22px;border-bottom:1px solid var(--line)}dialog .sr-item.selected{background:#eaf4fc;outline:2px solid var(--brand);outline-offset:-2px}.filter-reset{border:1px solid #ccdcea;background:#fff;color:var(--brand);border-radius:8px;padding:9px 12px;font-size:13px;min-height:42px}.dl-list li{scroll-margin-top:110px}.dl-list li:target{outline:2px solid var(--brand);outline-offset:3px;background:#f0f8ff}.search-overlay .sr-title{overflow-wrap:anywhere}.search-overlay .sr-desc{overflow-wrap:anywhere}

/* Keep every search result reachable in short viewports. */
dialog .search-box{display:flex;flex-direction:column}dialog .search-input-wrap,dialog .search-help{flex-shrink:0}dialog .search-results{min-height:0;flex:1 1 auto}
/* Layout rhythm: compact introduction, separated resources and readable steps. */
body:has(.hero) .hero{padding-top:54px;padding-bottom:38px}
body:has(.hero) .hero .sub{max-width:760px;margin-top:20px}
body:has(.hero) .hero .actions{margin-top:24px}
body:has(.hero) .stats-row{margin:20px 0 24px;padding:20px 8px}
body:has(.hero) .section{padding-top:16px;padding-bottom:20px}
body:has(.hero) .card-grid{gap:16px;border:0;border-radius:0;overflow:visible;align-items:stretch}
body:has(.hero) .resource-card{border:1px solid var(--line);margin:0;padding:22px;gap:16px;background:#fff}
body:has(.hero) .rc-icon{flex-shrink:0;width:38px;height:38px;background:#edf6fd;color:var(--brand)}
body:has(.hero) .rc-body{min-width:0}
body:has(.hero) .rc-body h3{margin:0 0 8px;line-height:1.5}
body:has(.hero) .rc-body p{margin:0;font-size:14px;line-height:1.8}
body:has(.hero) .quick-start{padding:24px;border:1px solid var(--line);border-radius:14px;background:var(--wash)}
body:has(.hero) .quick-start .step-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px;margin-bottom:0}
body:has(.hero) .quick-start .step-list li{margin-bottom:0;padding-bottom:0;font-size:14px;line-height:1.85}
.reading-page .content>p{max-width:78ch}
.reading-page .content h2{margin-top:34px;padding-top:20px}
.reading-page .dl-list a{white-space:nowrap;align-self:center;font-size:13px;font-weight:600}
.reading-page .dl-size{white-space:nowrap}
@media(max-width:760px){body:has(.hero) .hero{padding-top:34px;padding-bottom:28px}body:has(.hero) .hero h1{font-size:30px;line-height:1.35}body:has(.hero) .hero h1 .accent{font-size:20px}body:has(.hero) .quick-start{padding:20px}body:has(.hero) .quick-start .step-list{grid-template-columns:1fr;gap:16px}body:has(.hero) .card-grid{gap:12px}body:has(.hero) .resource-card{padding:18px}body:has(.hero) .section{padding-top:12px;padding-bottom:16px}}
body:has(.hero) .hero .sub{margin-left:0;margin-right:0}body:has(.hero) .quick-start{margin-bottom:12px}body:has(.hero) .quick-start .step-list li{border-left:0}
@media(min-width:1250px){.reading-page .content{animation:none}}

/* Consistent line icons and clear section hierarchy. */
.ui-icon{display:inline-block;vertical-align:-.2em;flex-shrink:0;color:var(--brand)}
.page-head h1 .ui-icon{width:32px;height:32px;margin-right:8px}.content h2 .ui-icon{width:24px;height:24px;margin-right:8px}.callout-icon .ui-icon{width:21px;height:21px}
.download-symbol{width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:#ffffff24;border:1px solid #ffffff38;flex-shrink:0}.download-symbol .ui-icon{width:30px;height:30px;color:#fff}
.quick-start h2 .ui-icon{margin-right:6px}.resource-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:6px 0 22px}.resource-heading h2{font-size:25px;margin:4px 0 0;line-height:1.4}.resource-heading p{font-size:13px;color:var(--muted);margin:0}.section-kicker{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--brand)}
body:has(.hero) .resource-card .rc-icon svg{width:21px;height:21px}body:has(.hero) .resource-card{transition:border-color .18s,box-shadow .18s}body:has(.hero) .resource-card:hover{border-color:#90bfdf;box-shadow:0 4px 16px #1636530a}
.dl-list li{align-items:center}.dl-list .dl-name .local-badge{margin-left:6px}.dl-list .dl-size{font-variant-numeric:tabular-nums;color:var(--muted)}
@media(max-width:760px){.resource-heading{align-items:flex-start;flex-direction:column;gap:6px;margin-bottom:18px}.resource-heading h2{font-size:23px}.page-head h1 .ui-icon{width:27px;height:27px}.download-symbol{width:44px;height:44px;border-radius:11px}.download-symbol .ui-icon{width:25px;height:25px}.content h2 .ui-icon{width:21px;height:21px;margin-right:4px}}

/* Download-first compact homepage. */
body:has(.hero) .hero{padding:24px 32px 20px}body:has(.hero) .hero h1{font-size:30px;line-height:1.3}body:has(.hero) .hero h1 .accent{font-size:17px;margin-top:5px}body:has(.hero) .hero .sub,body:has(.hero) .hero .tagline,body:has(.hero) .hero .eyebrow{display:none}body:has(.hero) .hero .actions{margin-top:14px}body:has(.hero) .hero .button{padding:7px 14px;min-height:36px;font-size:13px}
.download-finder{padding-top:16px;padding-bottom:24px}.finder-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.finder-heading h2{font-size:21px;margin:0}.finder-heading a{font-size:13px}.download-finder>label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}#download-query{width:100%;padding:11px 14px;border:1px solid #9fbed5;border-radius:8px;background:#fff;font-size:15px}.finder-status{font-size:12px;color:var(--muted);margin:7px 0}.finder-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.finder-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;min-height:44px;border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--ink);background:#fff;text-decoration:none}.finder-item:hover{background:#edf6fd;border-color:#9fbed5}.finder-item span{min-width:0;overflow-wrap:anywhere}.finder-item small{color:var(--brand);white-space:nowrap}.finder-empty{padding:16px;background:var(--wash)}body:has(.hero) .resource-card{padding:14px;gap:10px}body:has(.hero) .rc-body h3{font-size:15px;margin-bottom:4px}body:has(.hero) .card-grid{gap:8px}
@media(max-width:760px){body:has(.hero) .hero{padding:18px 22px 12px}body:has(.hero) .hero h1{font-size:25px}body:has(.hero) .hero h1 .accent{font-size:15px}.finder-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.finder-item{padding:8px;font-size:12px}.finder-heading h2{font-size:19px}}@media(max-width:380px){.finder-grid{grid-template-columns:1fr}}

.download-detail{max-width:960px}.download-detail .page-head{padding-bottom:12px;margin-bottom:0}.download-detail h1{overflow-wrap:anywhere;font-size:clamp(24px,3vw,34px)}.detail-actions{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 26px}.support-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.support-button{display:flex;flex-direction:column;border:1px solid #a7c9df;border-radius:10px;padding:16px 20px;background:#f1f8fd;text-decoration:none}.support-button span{font-size:14px;margin-top:3px}.detail-note{font-size:13px;color:var(--muted)}#support{scroll-margin-top:110px}@media(max-width:600px){.support-links{grid-template-columns:1fr}.download-detail .button{padding:9px 13px;font-size:13px}}
.reading-page>.download-detail{max-width:960px;padding-right:32px}@media(max-width:760px){.reading-page>.download-detail{padding-right:22px}}

.qq-copy-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:14px 0}.qq-copy-row [role="status"]{font-size:13px;color:var(--muted);user-select:text}

/* Refined direct customer service links. */
.service-panel{margin:30px 0 24px;padding:26px;border:1px solid #dce6ee;border-radius:18px;background:linear-gradient(120deg,#f5f9fc,#fff);box-shadow:0 6px 24px #223b5505}.service-heading .service-kicker{font-size:10px;letter-spacing:2px;font-weight:700;color:#7a8c9d}.service-heading h3{font-size:20px;margin:6px 0 4px;color:#192d40}.service-heading p{font-size:13px;color:#758597;margin:0 0 20px!important}.service-panel .support-links{gap:12px}.service-panel .support-button{display:flex;flex-direction:row;align-items:center;gap:13px;padding:16px 18px;background:#fff;border:1px solid #e0e8ef;border-radius:12px;color:#20364b;transition:border-color .18s,box-shadow .18s;text-decoration:none}.service-panel .support-button:hover{border-color:#92bbd7;box-shadow:0 5px 16px #1e456010}.service-panel .service-icon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:#eef5fa;color:#217cba;flex-shrink:0;margin:0}.service-panel .service-label{display:flex;flex-direction:column;gap:2px;margin:0}.service-label strong{font-size:15px;font-weight:650}.service-label small{font-size:12px;color:#8493a1;letter-spacing:.3px}.service-panel .service-arrow{margin:0 0 0 auto;display:flex;color:#8d9dab}.service-arrow svg{width:17px;height:17px}.support-button:focus-visible{outline:3px solid #88bddd;outline-offset:3px}@media(max-width:600px){.service-panel{padding:20px;border-radius:14px}.service-heading h3{font-size:18px}.service-panel .support-button{padding:14px 16px}}

/* The complete download row is one native link target. */
.dl-list .download-row{position:relative;cursor:pointer}.dl-list .download-row-link{position:static}.dl-list .download-row-link::after{content:"";position:absolute;inset:0;border-radius:inherit}.dl-list .download-row:hover,.dl-list .download-row:focus-within{background:#f1f8fd;border-color:#8ebbd9}.dl-list .download-row-link:focus-visible{outline:none}.dl-list .download-row-link:focus-visible::after{outline:3px solid #87c8f3;outline-offset:3px}