:root{color-scheme:light;--ink:#16222d;--muted:#566773;--line:#dbe5e8;--paper:#fff;--wash:#f4eff7;--soft:#f7f9fc;--accent:#734784;--accent-strong:#3d2446;--warm:#406db8;--warm-soft:#edf3fb;--panel:#ffffff;--section-gap:26px;--card-ink:#182730;--card-muted:#314955;--on-accent:#fff;--dark-panel:#100d14;--dark-card:#0e0c14;--dark-line:#332343;--dark-muted:#d6ccdf}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:0;font-family:"Segoe UI",Aptos,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:linear-gradient(180deg,var(--wash) 0,var(--paper) 460px);font-size:17px;line-height:1.72}img,svg,video,canvas{max-width:100%}
    a{color:var(--accent-strong);text-decoration-color:var(--accent);text-underline-offset:3px}header,main,footer{width:min(1160px,calc(100% - 32px));margin:0 auto}.hero{width:100%;margin:0;padding:24px}
    header{display:flex;gap:22px;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line)}.brand{font-family:"Arial Black","Segoe UI",Aptos,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;font-size:1.28rem;font-weight:900;color:#102b35;text-decoration:none}
    nav{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}nav a{font-size:.92rem;font-weight:780;text-decoration:none;color:#2d4650}.hero{display:grid;grid-template-columns:minmax(0,.96fr) minmax(320px,560px);gap:clamp(28px,5vw,64px);align-items:center;overflow:hidden;padding:clamp(42px,7vw,76px) max(16px,calc((100% - 1160px)/2)) clamp(34px,5vw,62px);background:linear-gradient(112deg,#fff 0%,var(--soft) 48%,var(--wash) 100%);border-bottom:1px solid var(--line)}.hero>div:first-child{padding:4px}
    .hero.brand-band{grid-template-columns:minmax(0,1.18fr) minmax(280px,500px);background:linear-gradient(135deg,var(--accent-strong),var(--accent));color:#fff}.hero.brand-band h1,.hero.brand-band h2,.hero.brand-band h3{color:#fff}.hero.brand-band .kicker,.hero.brand-band .lead{color:rgba(255,255,255,.92)}.hero.brand-band .button{border-color:rgba(255,255,255,.82);background:rgba(255,255,255,.1);color:#fff}.hero.brand-band .button.primary{background:#fff;color:var(--accent-strong)}.hero.brand-band .hero-note{border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.12);box-shadow:none}.hero.brand-band .hero-note p{color:rgba(255,255,255,.88)}
    .kicker{margin:0 0 14px;color:var(--accent-strong);font-size:.96rem;font-weight:800}.type-pill{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:5px 10px;background:var(--soft);color:var(--accent-strong);font-size:.82rem;font-weight:800}
    h1,h2,h3{font-family:"Arial Black","Segoe UI",Aptos,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;letter-spacing:0;text-wrap:balance}h1{max-width:790px;margin:0 0 18px;font-size:4.05rem;line-height:1.02}h2{margin:0 0 12px;font-size:1.78rem;line-height:1.16}h3{margin:0 0 8px;font-size:1.18rem}
    .lead{max-width:760px;margin:0;color:#334a52;font-size:1.12rem}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;max-width:100%;min-height:44px;border:1px solid var(--accent);border-radius:8px;padding:10px 15px;background:var(--paper);color:var(--accent-strong);font-weight:850;text-decoration:none;white-space:nowrap;transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease}.button.primary{background:var(--accent-strong);color:var(--on-accent)}body a.button.primary[data-disabled-download-link],body .hero.brand-band a.button.primary[data-disabled-download-link]{border-color:#9aa7b8;background:#e8edf4;color:#384457;cursor:not-allowed;box-shadow:none}body a.button.primary[data-disabled-download-link]:hover,body a.button.primary[data-disabled-download-link]:focus-visible,body .hero.brand-band a.button.primary[data-disabled-download-link]:hover,body .hero.brand-band a.button.primary[data-disabled-download-link]:focus-visible{border-color:#8794a6;background:#e8edf4;color:#253142;transform:none}
    .hero-visual{position:relative;align-self:stretch;min-height:360px;display:flex;align-items:center}.hero-visual img{display:block;width:100%;height:100%;max-height:520px;aspect-ratio:16/10;object-fit:cover;border-radius:8px;box-shadow:0 24px 70px rgba(18,34,45,.18)}.hero-panel{position:absolute;left:0;right:0;bottom:0;max-width:none;border:0;border-top:1px solid rgba(255,255,255,.34);border-radius:0 0 8px 8px;padding:18px 20px;background:linear-gradient(180deg,rgba(8,18,25,0),rgba(8,18,25,.78));box-shadow:none;color:#fff}.hero-panel .type-pill{border:0;background:transparent;color:#fff;padding:0}.hero-panel p{max-width:36em;margin:8px 0 0;color:rgba(255,255,255,.9);font-size:.95rem}
    .hero-note{align-self:start;max-width:360px;border:1px solid var(--line);border-radius:8px;padding:18px;background:var(--soft);box-shadow:0 14px 34px rgba(0,0,0,.07)}.hero-note p{margin:10px 0 0;color:var(--muted);font-size:.96rem}
    .hero-flow{display:grid;align-content:center;min-height:340px;padding:24px;color:#fff}.hero-flow-head{display:flex;align-items:end;justify-content:space-between;gap:16px;border-bottom:1px solid rgba(255,255,255,.52);padding-bottom:14px}.hero-flow-head span{font-size:.82rem;font-weight:850}.hero-flow-head strong{max-width:14ch;text-align:right;font-size:1.24rem;line-height:1.2}.hero-flow ol{display:grid;margin:0;padding:0;list-style:none;counter-reset:hero-flow}.hero-flow li{counter-increment:hero-flow;display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;align-items:center;border-bottom:1px solid rgba(255,255,255,.32);padding:18px 0}.hero-flow li::before{content:counter(hero-flow,decimal-leading-zero);font-weight:900}.hero-flow li strong,.hero-flow li span{display:block}.hero-flow li span{margin-top:3px;color:rgba(255,255,255,.82);font-size:.88rem}.hero-flow-status{display:flex;gap:8px;flex-wrap:wrap;padding-top:16px}.hero-flow-status span{border:1px solid rgba(255,255,255,.5);border-radius:999px;padding:5px 9px;font-size:.78rem;font-weight:800}@media (max-width:820px){.hero-flow{padding:20px}}@media (max-width:640px){.hero-flow-head{align-items:start}.hero-flow-head strong{font-size:1.08rem}}
    main{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--section-gap);padding:22px 0 46px}main>*{min-width:0}.notice{border:1px solid #e3d7b8;border-radius:8px;background:#fffaf0;padding:14px 16px;color:#52422b}.notice p{margin:0}.section-block{padding:30px 0;border-top:1px solid var(--line)}.section-block.split,.download-layout{display:grid;grid-template-columns:minmax(0,.82fr) minmax(280px,1.18fr);gap:28px;align-items:start}.section-head p{margin:0 0 8px;color:var(--accent-strong);font-size:.9rem;font-weight:850}.section-head span,.download-panel span{display:block;color:var(--muted)}
    .platform-grid,.signal-list,.checklist,.steps,.pathways ul,.article-grid,.feature-strip{margin:0;padding:0;list-style:none}.platform-grid,.article-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.pathways ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.info-card,.article-card,.signal-list li,.checklist li,.steps li{border:1px solid var(--line);border-radius:8px;background:var(--paper);padding:16px;box-shadow:none}.article-card{overflow:hidden}.article-card img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:6px;margin-bottom:12px;background:var(--soft)}.section-head.with-action{display:flex;gap:16px;align-items:end;justify-content:space-between}.section-head small{display:block;margin-top:8px;color:var(--muted);font-weight:750}.section-link{font-weight:850;text-decoration:none;white-space:nowrap}.info-card span,.article-card span,li span{display:block;color:var(--muted);font-size:.92rem}.article-card a{font-weight:850;text-decoration:none}.article-card p{margin:8px 0 0;color:#415861;font-size:.94rem}.article-pagination{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.article-pagination a,.article-pagination span{min-width:34px;border:1px solid var(--line);border-radius:8px;padding:7px 10px;background:var(--paper);text-align:center;font-weight:850;text-decoration:none}.article-pagination span{background:var(--accent-strong);border-color:var(--accent-strong);color:var(--on-accent)}
    .structure-module{display:grid;gap:18px}.source-ledger dl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:0}.source-ledger dl div{border:1px solid var(--line);border-top:3px solid var(--accent);padding:14px}.source-ledger dt{font-weight:900}.source-ledger dd{margin:5px 0 0;color:var(--muted)}.editorial-toc ol,.workflow-steps ol,.proof-ledger ul{margin:0;padding:0;list-style:none}.editorial-toc ol{display:grid;gap:8px}.editorial-toc li{display:grid;grid-template-columns:42px 1fr;align-items:center;border-bottom:1px solid var(--line);padding:12px 0;font-weight:850}.editorial-toc li span{color:var(--accent);font-weight:900}.workflow-steps ol{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;counter-reset:workflow}.workflow-steps li{counter-increment:workflow;border-top:4px solid var(--accent);padding:16px 0}.workflow-steps li::before{content:"0" counter(workflow);display:block;margin-bottom:16px;color:var(--accent);font-weight:900}.workflow-steps li span{margin-top:6px}.operations-strip{grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line);padding-block:20px}.operations-strip div{display:grid;gap:4px;padding:8px 18px;border-left:1px solid var(--line)}.operations-strip div:first-child{border-left:0}.operations-strip span{color:var(--accent-strong);font-size:.8rem;font-weight:900}.proof-ledger ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.proof-ledger li{border-bottom:1px solid var(--line);padding:12px 0}.proof-ledger li span{margin-top:6px}.resource-directory{grid-template-columns:minmax(240px,1.4fr) repeat(3,minmax(120px,.6fr));align-items:end}.resource-directory .section-head{align-self:start}.resource-directory a{border-bottom:2px solid var(--line);padding:12px 0;font-weight:850;text-decoration:none}
    .feature-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.feature-strip div{border-radius:8px;padding:18px;background:linear-gradient(135deg,var(--wash),var(--warm-soft));border:1px solid var(--line)}.feature-strip span{display:block;margin-top:5px;color:#40565f}
    .download-panel{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-inline:calc(50% - 50vw);padding:30px max(16px,calc((100vw - 1160px)/2));background:var(--accent-strong);color:#fff}.download-panel p{margin:0 0 6px;color:#fff;font-weight:800}.download-panel h2{margin:0 0 6px;color:#fff}.download-panel span{color:rgba(255,255,255,.88)}.download-panel .button{border-color:rgba(255,255,255,.72);background:transparent;color:#fff}.download-panel .button.primary{background:#fff;color:var(--accent-strong)}.download-options{margin-inline:calc(50% - 50vw);padding:34px max(16px,calc((100vw - 1160px)/2));border-block:1px solid var(--line);background:var(--soft)}.download-options .section-head.with-action{align-items:flex-start;margin-bottom:20px}.download-options .section-head p{display:block;margin-bottom:8px;color:var(--accent-strong);font-size:.84rem}.download-options .section-head h2{max-width:720px;margin-bottom:8px;font-family:"Segoe UI",Aptos,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;font-size:1.85rem;font-weight:900;line-height:1.18;text-wrap:balance}.download-options .section-head span{max-width:800px;color:#304850}.download-card-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;margin:0;padding:0;list-style:none}.download-card{--tile-ink:var(--accent-strong);--tile-bg:#fff;grid-column:span 2;display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto 1fr auto;gap:10px 14px;align-items:start;min-height:188px;border:1px solid color-mix(in srgb,var(--tile-ink) 18%,#d7e7ee);border-radius:8px;background:var(--tile-bg);padding:18px;box-shadow:none}.download-card-grid:has(.download-card:nth-child(4):last-child) .download-card{grid-column:span 3}.download-card-grid:has(.download-card:nth-child(5):last-child) .download-card:nth-last-child(-n+2){grid-column:span 3}.download-card:nth-child(1){--tile-ink:var(--accent-strong)}.download-card:nth-child(2){--tile-ink:#14795f}.download-card:nth-child(3){--tile-ink:#26344d}.download-card:nth-child(4){--tile-ink:#8a431b}.download-card:nth-child(5){--tile-ink:#08766d}.download-card .button{grid-column:2;align-self:end;justify-self:start;width:auto;min-height:36px;margin-top:2px;border-color:var(--tile-ink);border-radius:8px;padding:7px 12px;background:var(--tile-ink);color:#fff;font-size:.88rem}.download-card .button:hover,.download-card .button:focus-visible{border-color:var(--tile-ink);background:#fff;color:var(--tile-ink)}.download-card span{display:block;margin-bottom:3px;color:var(--tile-ink);font-size:.78rem;font-weight:900}.download-card strong{display:block;font-size:1.05rem;line-height:1.35}.download-card p{margin:7px 0 0;max-width:34em;color:#314955;font-size:.92rem;line-height:1.65}.download-icon{display:grid;place-items:center;width:52px;height:52px;border:1px solid color-mix(in srgb,var(--tile-ink) 28%,#fff);border-radius:8px;background:color-mix(in srgb,var(--tile-ink) 9%,#fff);color:var(--tile-ink);font-weight:900;letter-spacing:0;font-size:.9rem}
    .compare{width:100%;border-collapse:collapse;background:#fff}.compare th,.compare td{border-top:1px solid var(--line);padding:13px;text-align:left;vertical-align:top}.compare th{width:120px;color:var(--accent-strong);font-size:.92rem}.faq-list{display:grid;gap:10px}.faq-list details{border:1px solid var(--line);border-radius:8px;padding:14px;background:var(--soft)}.faq-list summary{cursor:pointer;font-weight:800}body.opera-guide .nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink);font-size:1.25rem;line-height:1}body.opera-guide .brand{display:inline-flex;align-items:center;min-height:44px}body.opera-guide .faq-list summary{display:flex;align-items:center;min-height:44px}body.opera-guide footer a{display:inline-flex;align-items:center;min-height:44px}
    .pathways a{display:block;height:100%;border:1px solid var(--line);border-radius:8px;padding:14px;background:#fff;font-weight:850;text-decoration:none}.pathways span{display:block;margin-bottom:4px;color:var(--muted);font-size:.78rem;font-weight:800}.article-meta{display:flex;gap:8px;flex-wrap:wrap;max-width:860px}.article-meta span{border:1px solid var(--line);border-radius:999px;padding:5px 10px;background:var(--soft);color:var(--accent-strong);font-size:.82rem;font-weight:800}.key-point-band ul{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin:0;padding:0;list-style:none}.key-point-band li{border:1px solid var(--line);border-radius:8px;background:#fff;padding:12px;font-weight:760}.article-body{max-width:860px}.article-section{padding:22px 0;border-top:1px solid var(--line);overflow-wrap:anywhere}.article-section p{margin:0 0 12px;color:#304850}.article-section ul{margin:0;padding-left:1.1rem;color:#304850}.article-inline-image{margin:4px 0 24px}.article-inline-image img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:8px;box-shadow:0 14px 32px rgba(0,0,0,.1);background:var(--soft)}.article-conversion{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;border:1px solid var(--line);border-radius:8px;padding:20px;background:var(--soft)}.article-conversion p{margin:0 0 6px;color:var(--accent-strong);font-weight:850}.article-conversion h2{margin-bottom:6px}.article-conversion span{color:var(--muted)}.conversion-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.article-next-links{grid-column:1/-1;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.article-next-links a{border:1px solid var(--line);border-radius:8px;background:#fff;padding:12px;text-decoration:none;font-weight:850}.article-next-links span{display:block;margin-bottom:4px;color:var(--muted);font-size:.78rem}.page-sources ul{display:grid;gap:0;margin:18px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}.page-sources li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:start;padding:16px 0;border-bottom:1px solid var(--line)}.page-sources li p{margin:0;color:#304850}.page-sources li a{font-weight:800;white-space:nowrap}
    body.layout-app-dashboard h1{font-weight:920;letter-spacing:0}body.layout-app-dashboard .hero{background:linear-gradient(112deg,#fff 0%,#f7fef9 48%,var(--wash) 100%)}body.layout-app-dashboard .platform-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}body.layout-app-dashboard .feature-strip div{background:#fff}
    body[data-hero="media-left"] .hero{grid-template-columns:minmax(320px,520px) minmax(0,1fr)}body[data-hero="media-left"] .hero-visual{order:-1}body[data-hero="poster"] .hero{grid-template-columns:minmax(0,.86fr) minmax(360px,600px);align-items:center}body[data-hero="poster"] .hero-visual{min-height:340px;margin-top:0}body[data-hero="poster"] .hero-visual img{height:auto;max-height:min(48vh,460px)}.hero-visual--contain img{height:auto;aspect-ratio:auto;object-fit:contain}body[data-hero="compact"] .hero{grid-template-columns:minmax(0,1fr) minmax(260px,420px);padding-top:clamp(32px,5vw,54px);padding-bottom:clamp(26px,4vw,44px)}body[data-hero="banded"] .hero{border-top:6px solid var(--accent);background:linear-gradient(90deg,var(--wash) 0,var(--paper) 34%,var(--soft) 100%)}body[data-cards="rail"] .article-grid{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:4px}body[data-cards="rail"] .article-card{flex:0 0 min(360px,86vw);scroll-snap-align:start}body[data-cards="ledger"] .article-grid{grid-template-columns:1fr}body[data-cards="ledger"] .article-card{display:grid;grid-template-columns:minmax(160px,240px) minmax(0,1fr);gap:14px;align-items:start}body[data-cards="ledger"] .article-card img{margin:0}body[data-cards="ledger"] .article-card--text{grid-template-columns:1fr}body[data-cards="ledger"] .article-card--text a,body[data-cards="ledger"] .article-card--text p{grid-column:1}body[data-cards="mosaic"] .article-grid{grid-template-columns:repeat(6,minmax(0,1fr))}body[data-cards="mosaic"] .article-card{grid-column:span 2}body[data-cards="mosaic"] .article-card:first-child,body[data-cards="mosaic"] .article-card:nth-child(2){grid-column:span 3}body[data-related="stack"] .pathways ul{grid-template-columns:1fr}body[data-related="compact"] .pathways ul{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}body[data-structure="conversion-led"] main{gap:calc(var(--section-gap) * .78)}body[data-structure="conversion-led"] .conversion-band{margin-top:6px}body[data-structure="proof-led"] .feature-strip{grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,.85fr))}body[data-structure="workflow-led"] .platform-grid{grid-template-columns:repeat(4,minmax(0,1fr))}body[data-structure="editorial-index"] .article-preview{padding-top:18px}body[data-structure="resource-stack"] .download-options{background:var(--paper)}
    @keyframes heroText{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@keyframes heroImage{from{opacity:0;transform:scale(.985) translateY(10px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:no-preference){.hero>div:first-child{animation:heroText .58s ease-out both}.hero-visual{animation:heroImage .74s cubic-bezier(.2,.8,.2,1) both}.button:hover,.button:focus-visible{transform:translateY(-1px)}.article-card,.info-card,.download-card,.pathways a{transition:transform .18s ease,border-color .18s ease}.article-card:hover,.info-card:hover,.download-card:hover,.pathways a:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--accent) 42%,var(--line))}}
    footer{border-top:1px solid var(--line);padding:22px 0 34px;color:var(--muted);font-size:.9rem;display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap}@media (max-width:980px){h1{font-size:3.18rem}.pathways ul{grid-template-columns:repeat(2,minmax(0,1fr))}.download-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.download-card,.download-card-grid:has(.download-card:nth-child(4):last-child) .download-card,.download-card-grid:has(.download-card:nth-child(5):last-child) .download-card:nth-last-child(-n+2){grid-column:auto}body[data-cards="mosaic"] .article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}body[data-cards="mosaic"] .article-card,body[data-cards="mosaic"] .article-card:first-child,body[data-cards="mosaic"] .article-card:nth-child(2){grid-column:auto}.resource-directory{grid-template-columns:1fr 1fr}.resource-directory .section-head{grid-column:1/-1}}@media (max-width:820px){header,.hero,.section-block.split,.download-layout,.article-conversion,body[data-hero="poster"] .hero{display:block}nav{justify-content:flex-start;margin-top:12px}.hero{padding:34px max(16px,calc((100% - 1160px)/2))}.hero-visual,body[data-hero="poster"] .hero-visual{display:block;min-height:auto;margin-top:24px}body[data-hero="media-left"] .hero-visual{order:initial}.hero-visual img,body[data-hero="poster"] .hero-visual img{height:auto;max-height:460px}.hero-panel{position:static;margin-top:12px;border-radius:8px;background:#13222c}.feature-strip,body[data-structure="proof-led"] .feature-strip,body[data-structure="workflow-led"] .platform-grid,.source-ledger dl,.workflow-steps ol,.proof-ledger ul,.operations-strip{grid-template-columns:1fr}.operations-strip div{border-left:0;border-top:1px solid var(--line);padding-block:12px}.conversion-actions{justify-content:flex-start;margin-top:14px}.article-next-links{margin-top:14px}.page-sources li{grid-template-columns:1fr;gap:6px}.page-sources li a{white-space:normal}body[data-cards="ledger"] .article-card{display:block}body[data-cards="ledger"] .article-card img{margin-bottom:12px}h1{font-size:2.48rem}body.opera-guide header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;min-height:64px;padding:10px 0}body.opera-guide .nav-toggle{display:grid;place-items:center}body.opera-guide nav{display:none;grid-column:1/-1;width:100%;margin:0;padding:8px 0 4px;border-top:1px solid var(--line)}body.opera-guide nav.is-open{display:flex;flex-direction:column;align-items:stretch;gap:0}body.opera-guide nav a{display:flex;align-items:center;min-height:44px;border-bottom:1px solid var(--line);padding:8px 2px}}@media (max-width:640px){.pathways ul,.download-card-grid,.resource-directory{grid-template-columns:1fr}.download-options{padding:22px 16px}.download-card .button{grid-column:1/-1;width:100%}.hero-visual{min-height:240px}.hero-visual img{height:auto;min-height:240px}.section-head.with-action{display:block}.section-link{display:inline-block;margin-top:8px}body[data-cards="mosaic"] .article-grid{grid-template-columns:1fr}}
    body.hero-clean-product{--ink:#17213a;--muted:#566078;--line:#dce3ef;--paper:#fff;--wash:#f7f9fc;--soft:#eef3ff;background:#fff;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif}body.hero-clean-product h1,body.hero-clean-product h2,body.hero-clean-product h3{font-family:"Arial Black","Noto Sans SC","Microsoft YaHei",sans-serif}body.hero-clean-product .brand{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif}
    body.hero-clean-product header{padding:18px 0;background:#fff;border-bottom-color:#e5e9f2}body.hero-clean-product .brand{color:#17213a;font-size:1.22rem}body.hero-clean-product nav a{color:#35405c}body.hero-clean-product .hero.brand-band{grid-template-columns:minmax(0,.92fr) minmax(420px,600px);min-height:560px;padding-left:24px;padding-right:24px;background:#2c6bed;border:0;color:#fff}body.hero-clean-product .hero.brand-band .lead{max-width:650px;color:rgba(255,255,255,.94);font-size:1.18rem;line-height:1.75}body.hero-clean-product .hero.brand-band h1{font-size:4.45rem;line-height:1.04}body.hero-clean-product .hero-visual{justify-content:center;min-height:430px}body.hero-clean-product .hero-visual img,body.hero-clean-product[data-hero="poster"] .hero-visual img{width:100%;height:auto;max-height:540px;aspect-ratio:auto;object-fit:contain;border:0;border-radius:0;background:transparent;box-shadow:none}body.hero-clean-product .notice{border:1px solid #dfe5ef;border-radius:8px;background:#f7f9fc;color:#46516a}body.hero-clean-product .feature-strip div{border:0;background:#f3f6fc}body.hero-clean-product .article-card{border-color:#e1e6ef}body.hero-clean-product .article-card img{object-fit:cover;background:#f3f6fc}
    body.hero-clean-product .download-options{background:#fff;border-block-color:#dfe5ef}body.hero-clean-product .download-options .section-head{margin-bottom:24px}body.hero-clean-product .download-options .section-head p{color:#2c6bed}body.hero-clean-product .download-options .section-head h2{font-size:2rem;color:#17213a}body.hero-clean-product .download-options .section-head span{color:#566078}.hero-clean-product .download-card-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.hero-clean-product .download-card{--tile-ink:#2c6bed;grid-column:span 2;grid-template-columns:56px minmax(0,1fr);grid-template-rows:1fr auto;min-height:174px;gap:10px 16px;border:1px solid #dfe5ef;background:#fff;padding:20px}.hero-clean-product .download-card--mobile{grid-column:span 3;min-height:194px;border-color:#d3def8;background:#f3f6ff}.hero-clean-product .download-card--official{grid-column:1/-1;grid-template-columns:56px minmax(0,1fr) auto;grid-template-rows:auto;align-items:center;min-height:92px;border:0;background:#f5f7fb}.hero-clean-product .download-icon{width:56px;height:56px;border:0;border-radius:8px;background:#fff}.hero-clean-product .download-icon img{display:block;width:32px;height:32px;object-fit:contain}.hero-clean-product .download-icon>span{margin:0;color:var(--tile-ink);font-size:.82rem}.hero-clean-product .download-card-copy>span{margin-bottom:3px;color:var(--tile-ink)}.hero-clean-product .download-card-copy strong{font-size:1.12rem}.hero-clean-product .download-card-copy p{margin-top:6px;line-height:1.55}.hero-clean-product .download-card .button{grid-column:2;gap:7px;background:var(--tile-ink);border-color:var(--tile-ink)}.hero-clean-product .download-card .button::after{content:"\2192";font-size:1rem;line-height:1}.hero-clean-product .download-card--official .button{grid-column:3;grid-row:1;align-self:center}.hero-clean-product .platform-android{--tile-ink:#137a58}.hero-clean-product .platform-iphone-ipad,.hero-clean-product .platform-macos{--tile-ink:#17191f}.hero-clean-product .platform-windows{--tile-ink:#0878c9}.hero-clean-product .platform-linux{--tile-ink:#8a5a00}.hero-clean-product .download-card--official{--tile-ink:#2c6bed}.hero-clean-product[data-cards="mosaic"] .article-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-clean-product[data-cards="mosaic"] .article-card,.hero-clean-product[data-cards="mosaic"] .article-card:first-child,.hero-clean-product[data-cards="mosaic"] .article-card:nth-child(2){grid-column:auto}
    @media (max-width:980px){body.hero-clean-product .hero.brand-band{grid-template-columns:minmax(0,.92fr) minmax(360px,480px)}body.hero-clean-product .hero.brand-band h1{font-size:3.45rem}.hero-clean-product .download-card,.hero-clean-product .download-card--mobile{grid-column:span 3}.hero-clean-product .download-card--official{grid-column:1/-1}}
    @media (max-width:820px){body.hero-clean-product .hero.brand-band{display:block;min-height:auto;padding-top:42px}body.hero-clean-product .hero.brand-band h1{font-size:2.8rem}body.hero-clean-product .hero-visual{min-height:0;margin-top:28px}body.hero-clean-product .hero-visual img,body.hero-clean-product[data-hero="poster"] .hero-visual img{max-height:430px}.hero-clean-product .download-card--official{grid-template-columns:56px minmax(0,1fr);grid-template-rows:auto auto}.hero-clean-product .download-card--official .button{grid-column:2;grid-row:2;justify-self:start}.hero-clean-product[data-cards="mosaic"] .article-grid{grid-template-columns:1fr}}
    @media (max-width:640px){body.hero-clean-product header{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}body.hero-clean-product header:not(:has(.nav-toggle)){grid-template-columns:minmax(0,1fr);align-items:start}body.hero-clean-product header:not(:has(.nav-toggle)) nav{grid-column:1/-1;justify-content:flex-start;margin-top:4px}body.hero-clean-product .brand{min-width:0;white-space:nowrap}body.hero-clean-product nav{grid-column:1/-1;gap:10px}body.hero-clean-product .hero.brand-band h1{font-size:2.46rem}body.hero-clean-product .hero.brand-band .lead{font-size:1.02rem}.hero-clean-product .download-card-grid{grid-template-columns:1fr}.hero-clean-product .download-card,.hero-clean-product .download-card--mobile,.hero-clean-product .download-card--official{grid-column:auto;grid-template-columns:48px minmax(0,1fr);grid-template-rows:auto auto;min-height:0;padding:16px}.hero-clean-product .download-icon{width:48px;height:48px}.hero-clean-product .download-card .button,.hero-clean-product .download-card--official .button{grid-column:1/-1;grid-row:2;width:100%;justify-self:stretch}.hero-clean-product .download-card-copy p{font-size:.88rem}}@media (max-width:360px){body.opera-guide header{gap:8px}body.opera-guide .brand{min-width:0;font-size:.94rem;white-space:nowrap}}
    @media (min-width:1208px){body.hero-clean-product .hero.brand-band{padding-left:calc((100% - 1160px)/2);padding-right:calc((100% - 1160px)/2)}}


    
    
    
    
    
    body .skip-link[href="#main-content"]{position:fixed;left:16px;top:-100px;z-index:100;transform:none;padding:10px 14px;border:2px solid currentColor;border-radius:6px;background:var(--paper,#fff);color:var(--ink,#16222d);font-weight:800;text-decoration:none}
    body .skip-link[href="#main-content"]:focus{top:12px;transform:none}
    .nav-toggle[hidden]{display:none!important}
    html:not([data-navigation-ready]) body:has(.nav-toggle) #site-nav{display:flex!important;flex-wrap:wrap;grid-column:1/-1}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}}