:root{font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#17243a;background:#fff;font-synthesis:none;--blue:#2568ef;--muted:#6c7789;--border:#e5eaf1}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}button,select{font:inherit}button,a,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #8bb5ff;outline-offset:4px}[hidden]{display:none!important}.wrap{width:min(1100px,calc(100% - 64px));margin:auto}header{border-bottom:1px solid var(--border);background:#fff}.nav{height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:750;letter-spacing:.02em}.brand-tail{font-size:16px;font-weight:500;margin-left:-6px;color:#6c7789}.brandmark{width:36px;height:36px;display:block;flex-shrink:0;object-fit:contain}nav{display:flex;gap:32px;font-size:14px;color:#647086}nav .current{color:var(--blue);font-weight:650}.intro{padding:52px 0 30px}.eyebrow,.section-label{font-size:12px;letter-spacing:.13em;font-weight:650;color:var(--blue)}.eyebrow{letter-spacing:.05em}h1{font-size:40px;letter-spacing:-.025em;line-height:1.35;margin:14px 0 12px;font-weight:750}h2{font-size:24px;line-height:1.4;margin:6px 0 8px;letter-spacing:-.025em}p{margin:0}.intro>p{color:var(--muted);font-size:17px}.feature-pills{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:22px;color:#5b677b;font-size:14px}.feature-pills b{color:var(--blue);font-size:18px;margin-right:6px}.recommend{background:#f3f7ff;border:1px solid #dce7fb;border-radius:14px;padding:26px 30px}.recommend-top{display:flex;align-items:center;justify-content:space-between;gap:24px}.recommend-top p{color:#63748f;font-size:14px}.recommend-top h2{font-size:25px;margin-top:8px}.recommend-action{min-width:208px;display:flex;flex-direction:column;align-items:center;gap:9px}.primary{background:var(--blue);border:1px solid var(--blue);color:#fff;padding:12px 24px;border-radius:8px;font-size:15px;font-weight:600;min-height:48px}.primary:hover{background:#1857d4}.recommend-action>.primary{width:100%}.recommend-action>a{font-size:13px;color:#5d7398}.selector{display:flex;align-items:flex-end;gap:16px;border-top:1px solid #dce7fb;margin-top:22px;padding-top:18px}.selector label{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#5c6e89}.selector select{width:206px;max-width:100%;background:#fff;border:1px solid #d7e2f3;border-radius:7px;color:#263956;font-size:14px;padding:9px 30px 9px 11px;min-height:42px}.selector-help{font-size:13px;color:var(--blue);padding-bottom:10px;margin-left:auto}.detect-note{font-size:12px;color:#71819a;margin-top:11px}.downloads{padding-top:44px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-heading h2{margin:6px 0 0}.section-heading>p{font-size:14px;color:var(--muted);padding-bottom:2px}.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.download-card{border:1px solid var(--border);border-radius:12px;padding:26px 24px 18px;display:flex;flex-direction:column;transition:border-color .2s,box-shadow .2s}.download-card.is-recommended{border-color:#87adf8;box-shadow:0 0 0 2px #eaf1ff}.card-head{display:flex;align-items:center;gap:13px;margin-bottom:20px;height:37px}.os-icon{color:var(--blue);width:36px;height:36px;border-radius:8px;background:#eef4ff;flex-shrink:0}.windows{display:grid;grid-template-columns:repeat(2,8px);grid-template-rows:repeat(2,8px);justify-content:center;align-content:center;gap:3px}.windows i{background:var(--blue)}.mac{font-size:22px;font-weight:650;text-align:center;line-height:36px}.card-kicker{font-size:12px;letter-spacing:.06em;color:#7a8698}.compat-tag{margin-left:5px;padding:3px 6px;border-radius:4px;background:#f0f2f5;font-size:11px;letter-spacing:0}.download-card h3{font-size:22px;margin:0 0 5px;line-height:1.4}.requirements{font-size:14px;color:#65738a}.card-body{padding:24px 0 20px;flex:1}.extra-feature{display:flex;gap:8px;align-items:flex-start}.extra-feature>span{color:var(--blue);font-size:18px}.extra-feature strong{font-size:14px;font-weight:600}.extra-feature p{font-size:13px;color:#7b8597;margin-top:4px;line-height:1.7}.card-desc{font-size:14px;color:#6c7789;line-height:1.85}.support{margin-top:18px;font-size:12px;color:#8992a2}.download-options{min-height:108px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px}.download-button{width:100%;min-height:47px;border:1px solid #d9e5fa;background:#f6f9ff;border-radius:7px;color:#2361dc;font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:6px;padding:10px 8px}.download-button:hover{background:#eaf2ff;border-color:#93b5f5}.download-button.selected{background:var(--blue);color:white;border-color:var(--blue)}.recommend-badge{font-size:10px;padding:1px 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2px;font-size:15px;font-weight:500}summary::-webkit-details-marker{display:none}summary span{font-size:20px;color:#8f9aad;font-weight:400}details[open] summary span{transform:rotate(45deg)}details p{font-size:14px;line-height:1.9;color:#69768b;max-width:850px;padding:0 2px 20px}footer{border-top:1px solid var(--border);padding:25px 0 32px;display:flex;align-items:center;gap:24px;font-size:12px;color:#8b95a5}footer>span{font-size:14px;color:#46556d;font-weight:650}footer a{margin-left:auto}dialog{border:1px solid var(--border);border-radius:14px;padding:32px;max-width:440px;width:calc(100% - 40px);color:#17243a;box-shadow:0 20px 80px #17243a25}dialog::backdrop{background:#17243a55}dialog h2{font-size:24px;margin:12px 0}dialog p{color:#6c7789;font-size:15px;line-height:1.9}dialog .primary{margin-top:24px;width:100%}.dialog-close{position:absolute;right:14px;top:10px;background:none;border:0;color:#8290a4;font-size:26px}
@media(max-width:950px){.selector{flex-wrap:wrap}.selector-help{margin-left:0}.selector label{flex:1;min-width:160px}.selector select{width:100%}.download-grid{gap:12px}.download-card{padding:23px 18px}.card-kicker{font-size:11px}.extra-feature p{font-size:12px}.support{line-height:1.8}.brand-tail{display:none}}
@media(max-width:700px){.wrap{width:calc(100% - 36px)}.nav{height:70px;gap:12px}.brand{font-size:18px;gap:8px}.brandmark{width:31px;height:31px;border-radius:8px;padding:8px}nav{gap:15px;font-size:12px}nav a:last-child{display:none}.intro{padding:36px 0 26px}h1{font-size:29px;margin-top:12px}.intro>p{font-size:15px}.feature-pills{gap:16px;font-size:12px;margin-top:18px}.feature-pills b{font-size:16px;margin-right:4px}.recommend{padding:22px 20px}.recommend-top{align-items:stretch;flex-direction:column;gap:18px}.recommend-top h2{font-size:22px}.recommend-action{align-items:stretch;gap:10px}.recommend-action>a{text-align:center}.selector{gap:12px}.selector label{min-width:calc(50% - 12px)}.selector-help{padding-bottom:0}.downloads,.features{padding-top:34px}.section-heading{margin-bottom:18px}.section-heading>p{display:none}.section-heading h2{font-size:22px}.download-grid{grid-template-columns:1fr;gap:16px}.download-card{padding:23px}.card-head{margin-bottom:13px}.card-body{padding:18px 0}.download-options{min-height:auto}.download-card h3{font-size:22px}.support{font-size:12px;margin-top:12px}.card-note{margin-top:12px}.extra-feature p{font-size:13px}.release-notice{font-size:12px}th,td{padding:13px 12px;font-size:13px}thead th{font-size:12px}tbody th{width:46%}.check{margin-right:3px}.help{padding:34px 0 38px}summary{font-size:14px}footer{flex-wrap:wrap;gap:9px 16px}footer p{font-size:11px}footer a{font-size:11px}dialog{padding:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.feature-description{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:3px}

.download-contact{margin-left:auto;color:var(--blue);font-size:13px}.release-notice{flex-wrap:wrap}.contact{margin:0 0 52px;border:1px solid var(--border);border-radius:14px;padding:32px 38px;display:flex;align-items:center;justify-content:space-between;gap:40px;background:#f8faff}.contact h2{font-size:27px;margin:10px 0 12px}.contact-copy>p{color:var(--muted);font-size:15px}.contact-benefit{font-size:14px;color:#435779;margin:17px 0}.contact-button{display:inline-flex;align-items:center;justify-content:center}.contact-copy>.contact-fallback{font-size:12px;margin-top:12px;color:#7c899d}.contact-qr{margin:0;flex:0 0 194px;text-align:center}.contact-qr img{display:block;width:194px;height:auto;border:1px solid #e5eaf1;border-radius:10px;background:white}.contact-qr figcaption{font-size:12px;color:#69768b;margin-top:9px}
@media(max-width:700px){nav a[href="#help"]{display:none}nav .contact-nav:last-child{display:block}.download-contact{margin:5px 0 0;width:100%}.contact{padding:24px 20px;flex-direction:column;gap:24px;margin-bottom:36px;align-items:stretch}.contact h2{font-size:24px}.contact-copy>p{font-size:14px}.contact-button{width:100%}.contact-qr{flex:none;align-self:center}.contact-copy>.contact-fallback{font-size:12px}.contact-fallback{max-width:100%}}
.mac-guide{padding:0 2px 24px}.mac-guide h3{font-size:16px;margin:20px 0 12px;color:#34455f}.mac-guide>p{padding:0 0 6px}.guide-table{overflow-x:auto}.guide-table table{min-width:540px}.guide-table tbody th{width:auto}.guide-table th,.guide-table td{padding:13px 18px}.guide-table thead th{white-space:nowrap}.mac-guide .guide-note{font-size:13px;margin:12px 0 0;max-width:none;color:#748198}.guide-note a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.chip-table table{min-width:500px}.guide-example{margin-top:18px;background:#f3f7ff;border-radius:8px;padding:16px 18px;font-size:14px}.guide-example strong{color:#2561ca;font-size:13px}.guide-example p{padding:5px 0 0;color:#435779}.guide-table:focus-visible{outline:3px solid #8bb5ff;outline-offset:3px}
@media(max-width:700px){.guide-table th,.guide-table td{padding:12px;font-size:13px}.mac-guide h3{font-size:15px}.mac-guide .guide-note{font-size:12px}.guide-example{padding:14px}.guide-example p{font-size:13px}}
.package-download{display:flex;flex-direction:column;gap:7px}.package-meta,.recommended-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px;color:#7c899d}.backup-link{color:var(--blue);font-size:12px}.backup-link:hover{text-decoration:underline;text-underline-offset:3px}.recommended-meta{width:100%;padding:0 2px}.recommend-action>.recommended-meta>a{color:var(--blue)}.download-options{min-height:152px;gap:15px}@media(max-width:700px){.download-options{min-height:auto}}