:root{font-family:-apple-system,"system-ui",Segoe UI,Roboto,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;color:#111827;background:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--font-ui: -apple-system, "system-ui", "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--font-cn: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;--accent: #0099ff;--text-primary: rgba(0, 0, 0, .9);--line: rgba(0, 0, 0, .08);--hero-top: #0f5cb8;--hero-mid: #6d61e8;--hero-bottom: #f0d0d8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:#fff;overflow-x:hidden;overflow-y:auto}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{appearance:none;border:0;background:transparent}#app{min-height:100dvh;width:100%}.qihang-download-page{min-height:100dvh;width:100%;background:#fff}.state-panel{width:min(720px,100%);padding:24px 26px;border-radius:28px;background:#ffffffeb;box-shadow:0 20px 44px #1f29371f,inset 0 0 0 1px #fff6;color:#111827}.state-panel.compact{width:min(640px,100%)}.state-panel.neutral,.state-panel.loading{background:#fff;box-shadow:0 18px 40px #0f172a14,inset 0 0 0 1px #0f172a0f}.state-panel.error{background:#fffffff0;box-shadow:0 20px 46px #0f172a21,inset 0 0 0 1px #ef44441f}.state-panel-eyebrow{margin:0;color:#11182775;letter-spacing:.24em;font-size:11px;font-weight:700}.state-panel-title{margin:12px 0 0;color:#111827;font-size:26px;line-height:1.2;font-weight:700}.state-panel-message{margin:12px 0 0;color:#111827ad;font-size:15px;line-height:1.8}.state-panel-action{margin-top:18px;min-width:120px;height:42px;padding:0 18px;border-radius:999px;background:#111827;color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:transform .2s ease,background-color .2s ease,opacity .2s ease}.state-panel-action:hover{background:#0f172a;transform:translateY(-1px)}:root{--site-header-height: 92px}.site-header{position:sticky;top:0;z-index:80;height:var(--site-header-height);background:#fffffff5;-webkit-backdrop-filter:blur(36px);backdrop-filter:blur(36px);border-bottom:1px solid var(--line)}.header-inner{position:relative;width:min(1560px,calc(100% - 56px));height:100%;margin:0 auto;display:flex;align-items:center;gap:56px}.brand-link{display:inline-flex;align-items:center;gap:14px;flex-shrink:0;cursor:pointer}.brand-logo{display:block;width:50px;height:auto}.brand-name{font-family:var(--font-cn);color:#111827;font-size:24px;font-weight:600;line-height:1;letter-spacing:.02em}.menu-toggle{display:none;position:relative;width:44px;height:44px;margin-left:auto;color:var(--text-primary);cursor:pointer}.menu-toggle-bar{position:absolute;left:10px;width:24px;height:2.5px;border-radius:999px;background:currentColor;transition:transform .28s ease,opacity .22s ease,top .28s ease}.menu-toggle-bar.top{top:14px}.menu-toggle-bar.middle{top:21px}.menu-toggle-bar.bottom{top:28px}.menu-toggle.open .menu-toggle-bar.top{top:21px;transform:rotate(45deg)}.menu-toggle.open .menu-toggle-bar.middle{opacity:0}.menu-toggle.open .menu-toggle-bar.bottom{top:21px;transform:rotate(-45deg)}.main-nav{display:flex;align-items:center;gap:14px}.nav-link{font-family:var(--font-ui);min-width:132px;height:var(--site-header-height);display:inline-flex;align-items:center;justify-content:center;gap:10px;color:var(--text-primary);font-size:18px;font-weight:500;cursor:pointer;transition:color .2s ease}.nav-link:hover,.nav-link.active{color:var(--accent)}.nav-link:focus{outline:none}.nav-link:focus-visible{outline:none;box-shadow:inset 0 -2px #0099ffd9}.nav-dropdown{position:relative;display:flex;align-items:center}.nav-arrow{width:10px;height:10px;margin-top:-4px;border-right:1.8px solid currentColor;border-bottom:1.8px solid currentColor;opacity:.54;transform:rotate(45deg);transition:transform .34s cubic-bezier(.22,1,.36,1),opacity .34s ease}.nav-arrow.expanded{opacity:.9;transform:translateY(1px) rotate(-135deg)}.menu-backdrop{position:fixed;inset:var(--site-header-height) 0 0;z-index:40;background:#0c122014;-webkit-backdrop-filter:blur(3px) saturate(.98);backdrop-filter:blur(3px) saturate(.98)}.menu-backdrop-fade-enter-active,.menu-backdrop-fade-leave-active{transition:opacity .38s ease,backdrop-filter .38s ease,background-color .38s ease}.menu-backdrop-fade-enter-from,.menu-backdrop-fade-leave-to{opacity:0;background:#0c122005;-webkit-backdrop-filter:blur(0px) saturate(1);backdrop-filter:blur(0px) saturate(1)}.menu-panel{z-index:90;pointer-events:auto;border-radius:20px;background:#fffffff7;box-shadow:0 30px 80px #0f172a29,inset 0 0 0 1px #0f172a0f}.downloads-panel{position:absolute;top:calc(100% - 6px);left:50%;width:292px;padding:18px 14px 12px;transform:translate(-50%)}.downloads-panel-float-enter-active,.downloads-panel-float-leave-active{transition:opacity .42s ease,transform .42s cubic-bezier(.22,1,.36,1),filter .42s ease}.downloads-panel-float-enter-from,.downloads-panel-float-leave-to{opacity:0;transform:translate(-50%) translateY(-10px) scale(.985);filter:blur(6px)}.menu-platform-item{width:100%;padding:13px 12px;display:flex;align-items:center;justify-content:space-between;border-radius:12px;color:#000000e0;cursor:pointer;transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}.menu-platform-item+.menu-platform-item{margin-top:2px}.menu-platform-item.active,.menu-platform-item:hover{color:#000000f5;background:#0099ff0e;box-shadow:inset 0 0 0 1px #0099ff0f}.menu-platform-item:active{transform:scale(.995)}.menu-platform-item.unavailable{opacity:.58}.menu-platform-main{font-family:var(--font-ui);display:inline-flex;align-items:center;gap:12px;font-size:19px;font-weight:600}.menu-platform-icon{width:28px;height:28px;object-fit:contain;opacity:.88}.home-page-shell{background:#f7f9fc}.hero-stage,.logs-page{position:relative;min-height:calc(100dvh - var(--site-header-height));overflow:hidden;transition:filter .42s cubic-bezier(.22,1,.36,1)}.hero-stage{background:linear-gradient(180deg,var(--hero-top) 0%,var(--hero-mid) 46%,var(--hero-bottom) 100%)}.hero-stage.blurred,.logs-page.blurred{filter:blur(2px) saturate(.98) brightness(.985)}.hero-raster,.hero-wash{position:absolute;inset:0}.hero-raster{background:linear-gradient(90deg,#0c469fd6,#2cb4de9e 31%,#7a54e6a8 66%,#44aee48f),repeating-linear-gradient(90deg,#ffffff24 0 2.9%,#23307042 2.9% 5.2%);mix-blend-mode:screen;opacity:.92}.hero-wash{background:radial-gradient(circle at 18% 92%,rgba(255,202,144,.8),transparent 24%),radial-gradient(circle at 20% 42%,rgba(108,221,255,.58),transparent 12%),radial-gradient(circle at 45% 58%,rgba(164,252,239,.28),transparent 16%),radial-gradient(circle at 74% 22%,rgba(135,92,255,.56),transparent 15%),radial-gradient(circle at 86% 38%,rgba(91,221,246,.44),transparent 14%),linear-gradient(180deg,#ffffff0a,#ffffff2e 82%,#ffffff38)}.stage-glow{position:absolute;border-radius:999px;filter:blur(44px);opacity:.62}.glow-left{left:12%;top:32%;width:320px;height:320px;background:#70d8ff80}.glow-center{left:44%;top:48%;width:280px;height:280px;background:#cafff83d}.glow-right{right:18%;top:22%;width:300px;height:300px;background:#c184ff75}.hero-content{position:relative;z-index:1;width:min(1440px,calc(100% - 32px));min-height:calc(100dvh - var(--site-header-height));margin:0 auto;padding:clamp(24px,3vh,34px) 0 24px;display:grid;grid-template-areas:"stack";align-items:stretch;justify-items:center;text-align:center}.hero-main{grid-area:stack;width:100%;max-width:1080px;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;align-self:center}.hero-content h1{font-family:var(--font-cn);position:relative;z-index:0;margin:0;color:#fff;display:flex;align-items:center;gap:clamp(12px,2vw,24px);font-size:clamp(68px,7.4vw,114px);line-height:1;letter-spacing:.01em;font-weight:400;text-shadow:0 0 18px rgba(255,255,255,.74),0 0 42px rgba(255,255,255,.4),0 0 86px rgba(132,240,255,.34),0 0 128px rgba(186,146,255,.22),0 10px 30px rgba(66,89,170,.2)}.hero-content h1:before{content:"";position:absolute;inset:12% -10%;z-index:-1;border-radius:999px;background:radial-gradient(circle,rgba(255,255,255,.46) 0%,rgba(193,245,255,.3) 28%,rgba(173,139,255,.24) 52%,rgba(173,139,255,.12) 68%,transparent 82%);filter:blur(40px);opacity:1;pointer-events:none}.hero-brand,.hero-slogan{display:inline-block}.hero-brand{letter-spacing:.05em}.hero-slogan{letter-spacing:.03em}.download-pill{font-family:var(--font-ui);position:relative;overflow:hidden;margin-top:clamp(26px,4vh,34px);min-width:min(548px,calc(100vw - 48px));min-height:82px;padding:20px 34px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;gap:14px;background:#ffffffeb;color:#111;font-size:clamp(25px,3vw,34px);font-weight:600;box-shadow:0 24px 40px #3f3d6b33;cursor:pointer;transform:translateZ(0);transition:transform .3s ease,box-shadow .3s ease,background-color .3s ease,color .3s ease}.download-pill:before{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(180deg,#ffffff61,#fff0);opacity:0;transition:opacity .3s ease;pointer-events:none}@media(hover:hover)and (pointer:fine){.download-pill:hover{background:#fff;box-shadow:0 4px 25px #ffffffc7,0 24px 44px #3f3d6b3d;transform:scale(1.05)}.download-pill:hover:before{opacity:1}}.download-pill:focus{outline:none}.download-pill:focus-visible{background:#fff;box-shadow:0 0 0 3px #ffffff57,0 4px 25px #ffffffb8,0 24px 44px #3f3d6b3d;transform:scale(1.04)}.download-pill:disabled{cursor:not-allowed;opacity:.7;box-shadow:0 18px 30px #3f3d6b24}.download-pill:disabled:hover,.download-pill:disabled:focus-visible{transform:none;background:#ffffffeb;box-shadow:0 18px 30px #3f3d6b24}.download-icon{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:3px solid currentColor;border-radius:50%;font-size:28px;line-height:1}.download-version{font-family:var(--font-ui);margin:18px 0 0;color:#ffffffd6;font-size:20px;font-weight:600}.hero-bottom{grid-area:stack;width:min(900px,100%);display:flex;flex-direction:column;align-items:center;gap:20px;align-self:end}.platform-row{width:100%;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:28px 34px}.platform-item{min-width:172px;padding:14px 18px;display:inline-flex;align-items:center;gap:14px;border-radius:20px;color:#00000080;cursor:pointer;transition:transform .2s ease,color .2s ease,opacity .2s ease,background-color .2s ease}.platform-item:hover,.platform-item.active{color:#000000c7;background:#ffffff24;transform:translateY(-1px)}.platform-item.unavailable{color:#0000006b}.platform-icon{width:30px;height:30px;object-fit:contain;opacity:.78}.platform-label{font-size:18px;font-weight:600;line-height:1.2}.platform-copy{display:inline-flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left}.platform-status{color:#0000007a;font-size:14px;font-weight:600;line-height:1.4}.platform-item.active .platform-icon,.platform-item:hover .platform-icon{opacity:.92}.hero-footer{width:100%;display:flex;flex-direction:column;align-items:center;gap:10px;color:#0000009e}.hero-support{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:700}.hero-support button{color:inherit;cursor:pointer}.hero-copyright{width:100%;max-width:100%;display:flex;flex-direction:column;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 10px;text-align:center;line-height:1.6}.hero-copyright span{display:block;max-width:100%}@media(max-width:1200px)and (min-width:769px){.hero-content h1{gap:16px;font-size:clamp(56px,6vw,86px)}.download-pill{min-width:min(480px,calc(100vw - 56px));min-height:76px;font-size:clamp(22px,2.6vw,30px)}.platform-row{gap:20px 22px}.platform-item{min-width:152px;padding:12px 14px}}@media(max-height:860px)and (min-width:769px){.hero-content{grid-template-areas:none;grid-template-rows:minmax(0,1fr) auto;padding-top:20px;padding-bottom:20px}.hero-main,.hero-bottom{grid-area:auto}.hero-content h1{font-size:clamp(54px,6vw,82px)}.hero-content h1:before{inset:14% -6%;filter:blur(30px)}.download-pill{margin-top:24px;min-height:72px}.download-version{margin-top:14px;font-size:18px}.hero-bottom{margin-top:30px;gap:16px;align-self:center}.platform-row{gap:20px 26px}}.logs-page{background:#fff}.info-page{min-height:calc(100dvh - 92px);background:radial-gradient(circle at top left,rgba(189,227,255,.7),transparent 28%),linear-gradient(180deg,#f7fbff,#fff)}.logs-shell{min-height:calc(100dvh - 92px);display:grid;grid-template-columns:340px minmax(0,1fr);align-items:stretch}.logs-sidebar{padding:52px 40px 40px;background:#f5f5f5;border-right:1px solid rgba(15,23,42,.08)}.logs-sidebar h1{margin:0;color:#111827;font-size:28px;font-weight:700}.logs-platform-switch{margin-top:40px;display:grid;gap:12px}.logs-platform-group{display:grid;gap:2px}.logs-platform-trigger{width:100%;padding:10px 0;display:flex;align-items:center;justify-content:space-between;color:#111827c2;font-size:16px;font-weight:500;cursor:pointer}.logs-platform-trigger.active{color:var(--accent)}.logs-platform-arrow{width:9px;height:9px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);opacity:.72;transition:transform .2s ease,opacity .2s ease}.logs-platform-trigger.expanded .logs-platform-arrow{transform:rotate(225deg);opacity:.9}.logs-version-list{display:grid;gap:0}.logs-version-item{width:100%;padding:10px 0 10px 2px;display:flex;align-items:baseline;gap:8px;color:#111827a8;text-align:left;cursor:pointer}.logs-version-item strong{font-size:14px;font-weight:700}.logs-version-item span{color:#11182775;font-size:13px}.logs-version-item.active,.logs-version-item:hover{color:#111827}.logs-version-item.active span,.logs-version-item:hover span{color:#1118279e}.logs-detail{min-width:0;padding:54px 72px 32px;display:flex;flex-direction:column}.logs-detail-header h2{margin:0;color:#111827;font-size:clamp(44px,4vw,58px);line-height:1.12;font-weight:700}.logs-detail-header p{margin:24px 0 0;color:#11182794;font-size:18px;font-weight:600}.logs-detail-section{margin-top:56px}.logs-state-panel{margin-top:8px;max-width:760px}.logs-detail-section h3{margin:0;color:#111827;font-size:22px;font-weight:700}.logs-bullet-list{margin:24px 0 0;padding-left:28px;color:#111827d1;font-size:18px;line-height:2}.logs-bullet-list li+li{margin-top:10px}.logs-empty{margin:24px 0 0;color:#11182785;font-size:15px;line-height:1.8}.logs-empty-main{margin-top:0}.logs-page-footer{margin-top:auto;padding-top:36px;border-top:1px solid rgba(15,23,42,.08);display:flex;flex-direction:column;align-items:center;gap:10px}.info-shell{width:min(960px,calc(100% - 48px));min-height:calc(100dvh - 92px);margin:0 auto;padding:40px 0 32px;display:flex;flex-direction:column;align-items:flex-start}.info-back-link{color:#111827b8;font-size:15px;font-weight:600;cursor:pointer}.info-copy{margin-top:48px;max-width:640px}.info-eyebrow{margin:0;color:#11182766;letter-spacing:.24em;font-size:12px;font-weight:700}.info-copy h1{margin:16px 0 0;color:#111827;font-size:clamp(42px,5vw,60px);line-height:1.08;font-weight:700}.info-copy p{margin:18px 0 0;color:#1118279e;font-size:18px;line-height:1.8}.info-meta{width:100%;margin-top:32px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.info-meta-item{padding:18px 20px;border-radius:20px;background:#ffffffe0;box-shadow:0 18px 40px #0f172a14,inset 0 0 0 1px #0f172a0f}.info-meta-item span{display:block;color:#11182775;font-size:13px;font-weight:600;letter-spacing:.08em}.info-meta-item strong{display:block;margin-top:10px;color:#111827;font-size:20px;line-height:1.4}.info-note{width:100%;margin:18px 0 0;padding:18px 20px;border-radius:18px;background:#0099ff0f;color:#111827bd;font-size:15px;line-height:1.8}.info-sections{width:100%;margin-top:26px;display:grid;gap:18px}.info-section-card{padding:28px 30px;border-radius:26px;background:#fffffff0;box-shadow:0 24px 54px #0f172a14,inset 0 0 0 1px #0f172a0d}.info-section-card h2{margin:0;color:#111827;font-size:24px;line-height:1.3;font-weight:700}.info-section-copy{margin-top:16px;display:grid;gap:12px}.info-section-copy p{margin:0;color:#111827b3;font-size:16px;line-height:1.9}.info-section-list{margin:16px 0 0;padding-left:22px;color:#111827c7;font-size:16px;line-height:1.9}.info-section-list li+li{margin-top:10px}.info-page-footer{width:100%;margin-top:auto}@media(max-width:960px){.logs-shell{grid-template-columns:280px minmax(0,1fr)}.logs-detail{padding:44px 40px 28px}}@media(max-width:768px){:root{--site-header-height: 72px}.hero-stage,.logs-page{min-height:calc(100dvh - var(--site-header-height))}.site-header{height:var(--site-header-height)}.header-inner{height:100%;min-height:0;flex-wrap:nowrap;padding:0;gap:16px}.brand-link{gap:10px}.brand-logo{width:40px}.brand-name{font-size:21px}.menu-toggle{display:inline-flex;align-items:center;justify-content:center}.main-nav{position:absolute;top:calc(100% + 10px);left:0;right:0;width:100%;display:flex;flex-direction:column;align-items:stretch;gap:0;margin-left:0;padding:14px 0 10px;border-radius:24px;background:#fffffffb;box-shadow:0 24px 64px #0f172a29,inset 0 0 0 1px #0f172a14;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);transition:opacity .28s ease,transform .28s ease,visibility .28s ease}.main-nav.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.nav-dropdown{width:100%;display:block}.nav-link{width:100%;min-width:0;height:64px;justify-content:flex-start;font-size:16px;padding:0 24px}.menu-backdrop{inset:var(--site-header-height) 0 0}.downloads-panel{position:static;width:calc(100% - 24px);margin:0 12px 8px;transform:none}.hero-content{width:calc(100% - 32px);max-width:420px;min-height:calc(100dvh - var(--site-header-height));padding-bottom:32px;padding-top:28px;grid-template-areas:none;grid-template-rows:minmax(0,1fr) auto;align-items:stretch}.hero-main,.hero-bottom{grid-area:auto}.hero-content h1{width:100%;max-width:100%;flex-direction:column;gap:6px;font-size:clamp(34px,10.6vw,50px);line-height:1.04;letter-spacing:.02em}.hero-content h1:before{inset:8% -8%;filter:blur(26px)}.hero-brand,.hero-slogan{width:100%;max-width:100%}.download-pill{width:min(100%,340px);max-width:100%;min-width:0;min-height:68px;font-size:19px;font-weight:700;padding:15px 18px;background:#fffffff5;box-shadow:0 12px 34px #3f3d6b33,0 2px 12px #ffffff38}.download-icon{width:32px;height:32px;border-width:2px;font-size:18px}.download-version{margin-top:16px;font-size:14px}.hero-main{justify-content:center;align-self:center;padding-top:12px}.hero-bottom{margin-top:32px;gap:28px;align-self:end}.platform-row{width:min(100%,352px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.platform-item{width:100%;min-width:0;min-height:84px;padding:12px 14px;gap:10px;border-radius:18px;background:#ffffff1f;justify-content:flex-start}.platform-icon{width:26px;height:26px}.platform-label{font-size:16px}.platform-status{font-size:12px}.hero-footer{width:100%;margin-top:6px;margin-bottom:0;gap:16px}.hero-support{flex-wrap:wrap;justify-content:center;gap:8px;font-size:14px}.hero-copyright{max-width:320px;padding:0 10px;font-size:14px}.logs-shell{min-height:calc(100dvh - var(--site-header-height));grid-template-columns:1fr}.logs-sidebar{padding:28px 16px 20px;border-right:0;border-bottom:1px solid rgba(15,23,42,.08)}.logs-sidebar h1{font-size:24px}.logs-platform-switch{margin-top:20px}.logs-version-list{max-height:220px;overflow-y:auto}.logs-detail{padding:28px 16px 24px}.logs-state-panel{margin-top:0}.logs-detail-header h2{font-size:34px}.logs-detail-header p{margin-top:14px;font-size:15px}.logs-detail-section{margin-top:30px}.logs-detail-section h3{font-size:18px}.logs-bullet-list{margin-top:16px;padding-left:22px;font-size:15px;line-height:1.85}.state-panel{padding:20px 18px;border-radius:22px}.state-panel-title{font-size:22px}.state-panel-message{font-size:14px}.info-shell{width:calc(100% - 24px);min-height:calc(100dvh - var(--site-header-height));padding-top:28px;padding-bottom:24px}.info-copy{margin-top:32px}.info-copy h1{font-size:34px}.info-copy p{font-size:15px}.info-meta{grid-template-columns:1fr;gap:12px;margin-top:24px}.info-meta-item{padding:16px 18px}.info-meta-item strong{font-size:18px}.info-note{margin-top:14px;padding:16px 18px;font-size:14px}.info-sections{margin-top:24px}.info-section-card{padding:22px 18px;border-radius:22px}.info-section-card h2{font-size:20px}.info-section-copy p,.info-section-list{font-size:15px}}