:root{--bg:#f5f6f8;--panel:rgba(255,255,255,.82);--card:#fff;--text:#101217;--muted:#707682;--line:rgba(16,18,23,.09);--soft:#eef0f4;--accent:#111318;--shadow:0 18px 55px rgba(20,24,34,.08);--radius:26px}*{box-sizing:border-box}html{color-scheme:light}html.dark{--bg:#0c0e12;--panel:rgba(21,23,29,.82);--card:#14171c;--text:#f6f7f9;--muted:#969da8;--line:rgba(255,255,255,.09);--soft:#1b1f26;--accent:#f6f7f9;--shadow:0 18px 55px rgba(0,0,0,.28);color-scheme:dark}body{margin:0;background:radial-gradient(circle at 82% 0%,rgba(126,143,255,.12),transparent 28%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}.app-shell{min-height:100vh}.topbar{height:72px;display:flex;align-items:center;gap:24px;max-width:1180px;margin:auto;padding:0 20px;position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid transparent}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);margin-right:auto}.brandmark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:var(--text);color:var(--bg);font-weight:950;letter-spacing:-1px;box-shadow:0 8px 26px rgba(0,0,0,.13)}.brand b{display:block;font-size:15px}.brand small{display:block;font-size:9px;letter-spacing:1.5px;color:var(--muted);margin-top:2px}.desktop-nav{display:flex;gap:5px;padding:4px;background:var(--soft);border-radius:14px}.desktop-nav a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:750;padding:8px 13px;border-radius:10px}.desktop-nav a.active{background:var(--card);color:var(--text);box-shadow:0 3px 10px rgba(0,0,0,.06)}.icon-btn{border:1px solid var(--line);background:var(--card);color:var(--text);width:38px;height:38px;border-radius:12px;font-size:17px;cursor:pointer}.home,.page{max-width:1180px;margin:auto;padding:24px 20px 92px}.glass{background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(20px);box-shadow:var(--shadow)}.hero-panel{min-height:470px;border-radius:34px;padding:54px;display:grid;grid-template-columns:1.45fr .8fr;align-items:center;overflow:hidden;position:relative}.hero-panel:before{content:"";position:absolute;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(113,130,255,.18),transparent 68%);right:-110px;top:-140px}.hero-copy{position:relative;z-index:2}.kicker,.eyebrow{display:inline-flex;align-items:center;gap:7px;font-size:10px;font-weight:900;letter-spacing:1.6px;color:var(--muted);text-transform:uppercase}.kicker i{width:7px;height:7px;border-radius:50%;background:#20bb70;box-shadow:0 0 0 5px rgba(32,187,112,.12)}h1,h2,h3,p{margin-top:0}.hero-copy h1{font-size:clamp(42px,6vw,76px);line-height:.99;letter-spacing:-4px;margin:20px 0 24px;max-width:800px}.hero-copy h1 em{font-style:normal;color:var(--muted);font-weight:650}.hero-copy p{max-width:640px;font-size:16px;line-height:1.85;color:var(--muted)}.hero-actions{display:flex;gap:10px;margin-top:30px}.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;gap:18px;border-radius:14px;padding:13px 18px;text-decoration:none;border:0;cursor:pointer;font-weight:850;font-size:13px}.primary-btn{background:var(--text);color:var(--bg)}.secondary-btn{background:var(--card);color:var(--text);border:1px solid var(--line)}.secondary-btn.mini{padding:8px 11px}.hero-orbit{height:310px;position:relative;display:grid;place-items:center;z-index:1}.hero-orbit:before,.hero-orbit:after{content:"";position:absolute;border:1px solid var(--line);border-radius:50%}.hero-orbit:before{width:250px;height:250px}.hero-orbit:after{width:180px;height:180px}.orbit-core{width:116px;height:116px;border-radius:34px;background:var(--text);color:var(--bg);display:grid;place-items:center;align-content:center;box-shadow:0 30px 65px rgba(0,0,0,.25);z-index:2}.orbit-core span{font-size:44px;font-weight:950}.orbit-core small{font-size:8px;letter-spacing:2px;opacity:.65}.orbit-chip{position:absolute;width:54px;height:54px;border-radius:18px;background:var(--card);border:1px solid var(--line);display:grid;place-items:center;font-size:10px;font-weight:950;box-shadow:var(--shadow)}.c1{top:15px;left:47%}.c2{right:5px;top:44%}.c3{bottom:10px;left:46%}.c4{left:0;top:45%}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0 52px}.metric-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px 20px}.metric-card span,.metric-card small{display:block;color:var(--muted);font-size:11px}.metric-card strong{display:block;font-size:31px;letter-spacing:-1px;margin:7px 0 3px}.section-block{margin-top:52px}.section-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:16px}.section-title h2{margin:5px 0 0;font-size:28px;letter-spacing:-1px}.section-title>a,.highlight-card>a,.text-link{color:var(--text);text-decoration:none;font-size:12px;font-weight:850}.intent-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:12px}.intent-card{min-height:150px;padding:22px;border-radius:22px;background:var(--card);border:1px solid var(--line);text-decoration:none;color:var(--text);display:flex;align-items:flex-start;gap:15px;position:relative;transition:.18s transform,.18s box-shadow}.intent-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.intent-card.big{grid-row:span 2;min-height:312px;align-items:flex-end;background:linear-gradient(145deg,var(--card),var(--soft))}.intent-icon{width:44px;height:44px;border-radius:15px;background:var(--soft);display:grid;place-items:center;font-weight:900;flex:none}.intent-card b{font-size:17px}.intent-card p{font-size:12px;color:var(--muted);margin:6px 0 0;line-height:1.5}.arrow{position:absolute;top:18px;right:18px;color:var(--muted)}.split-section{display:grid;grid-template-columns:1.25fr .8fr;gap:12px}.highlight-card,.operator-card{border-radius:26px;padding:32px;min-height:240px}.highlight-card{background:linear-gradient(135deg,var(--text),#313643);color:var(--bg)}html.dark .highlight-card{background:linear-gradient(135deg,#f2f3f5,#c9ced8);color:#0c0e12}.highlight-card .eyebrow,.highlight-card p{color:color-mix(in srgb,currentColor 65%,transparent)}.highlight-card h2,.operator-card h2{font-size:29px;letter-spacing:-1.2px;margin:13px 0}.highlight-card p,.operator-card p{line-height:1.75;font-size:13px}.highlight-card>a{color:currentColor}.operator-card{display:flex;flex-direction:column;justify-content:space-between}.admin-link{display:inline-flex;padding:11px 14px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--text);font-size:12px;font-weight:850;width:max-content;background:var(--card)}.popular-grid,.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.popular-card,.ai-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px;text-decoration:none;color:var(--text);display:flex;gap:13px;align-items:center}.ai-card{align-items:flex-start;flex-direction:column}.ai-card-top{width:100%;display:flex;gap:12px}.model-logo{width:46px;height:46px;border-radius:14px;background:var(--soft);display:grid;place-items:center;overflow:hidden;flex:none}.model-logo img{width:100%;height:100%;object-fit:cover}.popular-card b,.ai-card b{font-size:14px}.popular-card p,.ai-card p{font-size:11px;line-height:1.55;color:var(--muted);margin:4px 0 0}.model-provider{font-size:10px;color:var(--muted)}.ai-actions{display:flex;gap:8px;width:100%;margin-top:auto}.ai-actions a,.ai-actions button{flex:1;border:1px solid var(--line);background:var(--soft);color:var(--text);border-radius:11px;padding:9px;text-align:center;text-decoration:none;font-size:11px;font-weight:800;cursor:pointer}.ai-actions .open{background:var(--text);color:var(--bg)}.skeleton-card,.loading-block{min-height:94px;border-radius:20px;background:linear-gradient(90deg,var(--soft),var(--card),var(--soft));background-size:200% 100%;animation:shine 1.3s infinite}@keyframes shine{to{background-position:-200% 0}}footer{max-width:1180px;margin:auto;padding:24px 20px 40px;display:flex;justify-content:space-between;color:var(--muted);font-size:11px}footer a{color:var(--muted)}.mobile-nav{display:none}.page-head{padding:42px 0 32px}.page-head.compact{padding-bottom:24px}.page-head h1{font-size:46px;letter-spacing:-2.3px;margin:10px 0 7px}.page-head p{color:var(--muted);font-size:13px}.search-box{margin-top:25px;max-width:680px;height:58px;border:1px solid var(--line);background:var(--card);border-radius:18px;display:flex;align-items:center;padding:0 16px;gap:10px;box-shadow:var(--shadow)}.search-box input{border:0;outline:0;background:transparent;color:var(--text);font-size:15px;width:100%}.search-box button{border:0;background:transparent;color:var(--muted);font-size:20px}.quick-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.quick-tags button,.category-list button{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:8px 11px;font-size:11px;cursor:pointer}.quick-tags button:hover,.category-list button.active{background:var(--text);color:var(--bg)}.ai-layout{display:grid;grid-template-columns:180px 1fr;gap:24px}.ai-layout aside{position:sticky;top:94px;height:max-content}.ai-layout aside h3{font-size:12px;color:var(--muted)}.category-list{display:flex;flex-direction:column;gap:6px}.category-list button{text-align:left;border-radius:11px}.result-head{height:38px;display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.result-head b{color:var(--text);font-size:13px}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.tool-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:20px;min-height:185px;display:flex;flex-direction:column}.tool-icon{width:48px;height:48px;border-radius:16px;background:var(--soft);display:grid;place-items:center;font-weight:950;margin-bottom:20px}.tool-card h3{font-size:16px;margin-bottom:6px}.tool-card p{font-size:12px;color:var(--muted);line-height:1.6}.tool-card button{margin-top:auto;border:1px solid var(--line);background:var(--soft);color:var(--text);border-radius:11px;padding:10px;font-weight:850;cursor:pointer}.modal{position:fixed;inset:0;background:rgba(0,0,0,.38);display:none;align-items:flex-end;justify-content:center;z-index:80;padding-top:50px}.modal.show{display:flex}.modal-panel{width:min(760px,100%);max-height:88vh;overflow:auto;background:var(--bg);border-radius:28px 28px 0 0;padding:24px;box-shadow:0 -30px 80px rgba(0,0,0,.25)}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px}.modal-head h2{margin:6px 0 0}.tool-area textarea,.tool-area input{width:100%;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:14px;padding:13px;font:inherit;outline:0}.tool-area textarea{min-height:210px;resize:vertical}.tool-actions{display:flex;gap:8px;margin:10px 0}.tool-actions button{border:1px solid var(--line);background:var(--soft);color:var(--text);border-radius:11px;padding:9px 12px;font-weight:800;cursor:pointer}.tool-meta{font-size:11px;color:var(--muted);margin-top:8px}.login-card{max-width:690px;border-radius:24px;padding:26px}.login-card p{color:var(--muted);font-size:12px}.token-row{display:flex;gap:8px}.token-row input{flex:1;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:13px;padding:0 13px;min-width:0}.hidden{display:none!important}.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}.admin-stat,.admin-panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:18px}.admin-stat span{display:block;color:var(--muted);font-size:10px}.admin-stat strong{font-size:28px;display:block;margin-top:6px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.panel-head h3{font-size:14px;margin:0}.panel-head span{font-size:10px;color:var(--muted)}.admin-row{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line);font-size:11px}.admin-row:first-child{border-top:0}.admin-row small{display:block;color:var(--muted);margin-top:3px}.health-panel{margin-top:12px}.health-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.health-item{background:var(--soft);border-radius:14px;padding:12px}.health-item span{font-size:10px;color:var(--muted);display:block}.health-item b{font-size:13px}.check-list{display:grid;gap:9px;max-width:760px}.check-item{background:var(--card);border:1px solid var(--line);padding:16px;border-radius:16px;display:flex;gap:12px;align-items:center}.check-dot{width:10px;height:10px;border-radius:50%;background:#20bb70}.check-dot.bad{background:#ef4e4e}.check-item b{font-size:13px}.check-item small{display:block;color:var(--muted);margin-top:4px}.shop-page{max-width:900px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.service-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:22px}.service-card .price{font-size:31px;font-weight:950;margin:16px 0}.service-card p{color:var(--muted);font-size:12px;line-height:1.6}.service-card button{width:100%;border:0;border-radius:12px;background:var(--text);color:var(--bg);padding:11px;font-weight:850}.service-card button:disabled{opacity:.35}.service-note{margin-top:14px;background:var(--soft);border-radius:16px;padding:14px;color:var(--muted);font-size:11px;line-height:1.7}
@media(max-width:820px){.desktop-nav{display:none}.topbar{height:64px;padding:0 14px}.home,.page{padding:14px 14px 88px}.hero-panel{grid-template-columns:1fr;min-height:auto;padding:30px 22px;border-radius:26px}.hero-copy h1{font-size:43px;letter-spacing:-2.6px}.hero-copy p{font-size:13px}.hero-orbit{height:220px;margin-top:16px}.hero-orbit:before{width:190px;height:190px}.hero-orbit:after{width:135px;height:135px}.orbit-core{width:92px;height:92px;border-radius:28px}.orbit-core span{font-size:34px}.metrics{grid-template-columns:1fr 1fr;margin-bottom:38px}.metric-card:last-child{grid-column:1/-1}.intent-grid{grid-template-columns:1fr 1fr}.intent-card.big{grid-row:auto;grid-column:1/-1;min-height:190px}.split-section{grid-template-columns:1fr}.popular-grid,.ai-grid,.tool-grid,.service-grid{grid-template-columns:1fr 1fr}.ai-layout{grid-template-columns:1fr}.ai-layout aside{position:static}.category-list{flex-direction:row;overflow:auto;padding-bottom:4px}.category-list button{white-space:nowrap}.page-head{padding:28px 0 22px}.page-head h1{font-size:38px}.mobile-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:70;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(20px);border-top:1px solid var(--line);padding:7px 8px calc(7px + env(safe-area-inset-bottom))}.mobile-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;color:var(--muted);font-size:9px;font-weight:800}.mobile-nav a span{font-size:18px}.mobile-nav a.active{color:var(--text)}footer{display:none}.admin-stats{grid-template-columns:1fr 1fr}.admin-grid{grid-template-columns:1fr}.token-row{flex-direction:column}.token-row input{height:46px}.health-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.hero-actions{flex-direction:column}.metrics{gap:8px}.intent-grid,.popular-grid,.ai-grid,.tool-grid,.service-grid{grid-template-columns:1fr}.section-block{margin-top:38px}.section-title h2{font-size:24px}.highlight-card,.operator-card{padding:24px}.hero-orbit{display:none}.hero-panel{padding-bottom:34px}.admin-stats{grid-template-columns:1fr 1fr}.health-grid{grid-template-columns:1fr}}


/* V3.0.2 极速秒切：主导航不再整页刷新 */
a,button{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.mobile-nav a,.desktop-nav a,.brand{user-select:none;-webkit-user-select:none}
@supports (view-transition-name:root){
  ::view-transition-old(root){animation:aihubFadeOut .085s ease both}
  ::view-transition-new(root){animation:aihubFadeIn .11s ease both}
}
@keyframes aihubFadeOut{to{opacity:.72;transform:translateY(1px)}}
@keyframes aihubFadeIn{from{opacity:.72;transform:translateY(2px)}}
.fast-switching body{opacity:.985}


/* V3.0.3：修复 AI 中心横向撑宽导致 Android 底部四键消失 */
@media(max-width:820px){
  html,body{max-width:100%;overflow-x:hidden}
  .page,.ai-layout,.ai-layout>*,.ai-layout>div,.ai-grid,.ai-card{min-width:0;max-width:100%}
  .category-list{width:100%;max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
  .ai-actions,.ai-actions a,.ai-actions button{min-width:0}
  .mobile-nav{display:grid!important;position:fixed!important;left:0!important;right:0!important;bottom:0!important;z-index:2147483000!important;visibility:visible!important;opacity:1!important;transform:translate3d(0,0,0);will-change:transform;isolation:isolate}
}

/* V3.0.5：极速横滑底栏 —— 手指按下即动，只做 GPU transform，不做弹簧/缩放/强制回流 */
@media(max-width:820px){
  .mobile-nav{
    --nav-index:0;
    position:fixed!important;
    overflow:hidden;
    isolation:isolate;
    -webkit-backdrop-filter:blur(20px) saturate(135%);
    backdrop-filter:blur(20px) saturate(135%);
    contain:layout paint style;
  }
  .mobile-nav::before{
    content:"";
    position:absolute;
    z-index:0;
    left:8px;
    top:5px;
    width:calc((100% - 16px)/4);
    height:52px;
    border:1px solid color-mix(in srgb,var(--line) 78%,transparent);
    border-radius:18px;
    background:color-mix(in srgb,var(--card) 80%,transparent);
    box-shadow:0 4px 13px rgba(0,0,0,.045),inset 0 1px 0 rgba(255,255,255,.48);
    transform:translate3d(calc(var(--nav-index) * 100%),0,0);
    transition:transform .145s cubic-bezier(.22,.78,.24,1);
    pointer-events:none;
    will-change:transform;
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
  }
  .dark .mobile-nav::before{
    box-shadow:0 4px 14px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.08);
  }
  .mobile-nav a{
    position:relative;
    z-index:1;
    min-height:52px;
    justify-content:center;
    border-radius:18px;
    transform:none!important;
    transition:color .08s linear,opacity .08s linear;
    will-change:auto;
  }
  .mobile-nav a span{
    display:grid;
    place-items:center;
    width:30px;
    height:28px;
    transform:none!important;
    filter:none!important;
    transition:none!important;
    animation:none!important;
  }
  .mobile-nav a::before{display:none!important}
  .mobile-nav a.active{color:var(--text)}
  .mobile-nav a.nav-press,.mobile-nav a.nav-pop{transform:none!important;animation:none!important}
}
@media(prefers-reduced-motion:reduce){
  .mobile-nav::before{transition-duration:.01ms!important}
}


/* V3.0.6：底栏与页面完全同步横滑。只动画 transform/opacity，固定导航取消实时毛玻璃重采样，降低 Android 卡顿。 */
@media(max-width:820px){
  :root{--aihub-slide-ms:168ms}
  .mobile-nav{
    background:color-mix(in srgb,var(--bg) 96%,transparent)!important;
    -webkit-backdrop-filter:none!important;
    backdrop-filter:none!important;
    contain:layout paint style;
  }
  .mobile-nav::before{
    transition:transform var(--aihub-slide-ms) cubic-bezier(.2,.82,.24,1)!important;
  }

  .app-shell>main{
    transform:translate3d(0,0,0);
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
  }
  .app-shell>main.aihub-page-prime{
    transform:translate3d(calc(var(--slide-dir) * -16px),0,0);
    transition:transform 72ms cubic-bezier(.2,.82,.24,1);
    will-change:transform;
  }

  .aihub-slide-stage{
    position:relative;
    width:100%;
    overflow:hidden;
    contain:layout paint;
    isolation:isolate;
    min-height:calc(100vh - 64px);
  }
  .aihub-slide-stage>main{
    position:absolute!important;
    top:0;
    left:0;
    right:0;
    width:100%!important;
    margin-left:auto!important;
    margin-right:auto!important;
    pointer-events:none;
    will-change:transform,opacity;
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
    transition:
      transform var(--aihub-slide-ms) cubic-bezier(.2,.82,.24,1),
      opacity 132ms linear;
  }
  .aihub-slide-stage>.aihub-slide-old{
    z-index:1;
    transform:translate3d(calc(var(--slide-dir) * -16px),0,0);
    opacity:1;
  }
  .aihub-slide-stage>.aihub-slide-new{
    z-index:2;
    transform:translate3d(calc(var(--slide-dir) * 15vw),0,0);
    opacity:.88;
  }
  .aihub-slide-stage.is-moving>.aihub-slide-old{
    transform:translate3d(calc(var(--slide-dir) * -10vw),0,0);
    opacity:.90;
  }
  .aihub-slide-stage.is-moving>.aihub-slide-new{
    transform:translate3d(0,0,0);
    opacity:1;
  }

  /* 过渡期间把主内容先合成为图层，避免阴影/玻璃在每帧跟着重新布局。 */
  .aihub-slide-stage .home,
  .aihub-slide-stage .page{
    contain:layout paint style;
  }
  html.aihub-nav-moving,body.aihub-nav-moving{overflow-x:hidden}
}
@media(prefers-reduced-motion:reduce){
  .aihub-slide-stage>main,.app-shell>main.aihub-page-prime,.mobile-nav::before{
    transition-duration:.01ms!important;
  }
}

/* V3.0.7：保留 V3.0.6 同步横滑，只消除透明叠层造成的“拖尾/重影”。 */
@media(max-width:820px){
  .aihub-slide-stage>main{
    opacity:1!important;
    min-height:100%;
    background:radial-gradient(circle at 82% 0%,rgba(126,143,255,.12),transparent 28%),var(--bg)!important;
    transition:transform var(--aihub-slide-ms) cubic-bezier(.2,.82,.24,1)!important;
  }
  .aihub-slide-stage>.aihub-slide-old,
  .aihub-slide-stage>.aihub-slide-new,
  .aihub-slide-stage.is-moving>.aihub-slide-old,
  .aihub-slide-stage.is-moving>.aihub-slide-new{
    opacity:1!important;
  }
}

/* V3.0.8：正式站按演示页同款实现 —— 200% 双页轨道横滑，无叠层、无淡入淡出、无拖尾。 */
@media(max-width:820px){
  :root{
    --aihub-slide-ms:168ms;
    --aihub-slide-ease:cubic-bezier(.22,.8,.2,1);
  }

  /* 底栏与页面严格共用同一时长和缓动。 */
  .mobile-nav::before{
    transition:transform var(--aihub-slide-ms) var(--aihub-slide-ease)!important;
  }

  /* V3.0.6 的提前轻推不再使用，避免“先动一下再整页滑”的卡顿错觉。 */
  .app-shell>main.aihub-page-prime{
    transform:none!important;
    transition:none!important;
  }

  .aihub-track-stage{
    width:100%;
    overflow:hidden;
    position:relative;
    isolation:isolate;
    contain:paint;
    background:radial-gradient(circle at 82% 0%,rgba(126,143,255,.12),transparent 28%),var(--bg);
  }
  .aihub-track{
    width:200%;
    display:flex;
    align-items:flex-start;
    transform:translate3d(0,0,0);
    transition:transform var(--aihub-slide-ms) var(--aihub-slide-ease);
    will-change:transform;
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
  }
  .aihub-track-pane{
    flex:0 0 50%;
    width:50%;
    min-width:0;
    min-height:calc(100vh - 66px);
    overflow:hidden;
    background:radial-gradient(circle at 82% 0%,rgba(126,143,255,.12),transparent 28%),var(--bg);
    contain:paint;
    backface-visibility:hidden;
    -webkit-backface-visibility:hidden;
  }
  .aihub-track-pane>.topbar{
    /* 滑动的 168ms 内停止实时毛玻璃重采样，减少 Android 合成压力。 */
    -webkit-backdrop-filter:none!important;
    backdrop-filter:none!important;
    background:color-mix(in srgb,var(--bg) 98%,transparent)!important;
  }
  .aihub-track-pane>main{
    transform:none!important;
    opacity:1!important;
    transition:none!important;
    will-change:auto!important;
  }

  html.aihub-nav-moving,body.aihub-nav-moving{overflow-x:hidden}
}
@media(prefers-reduced-motion:reduce){
  .aihub-track,.mobile-nav::before{transition-duration:.01ms!important}
}


/* V3.0.9：专修第二个 AI 按钮卡顿。
   AI 页面有 100+ 卡片；过渡期固定只合成一屏，并让屏外卡片延迟绘制。 */
@media(max-width:820px){
  .aihub-track-stage{
    height:100dvh!important;
    min-height:100svh!important;
    max-height:100dvh!important;
    overflow:hidden!important;
    contain:layout paint style!important;
  }
  .aihub-track{
    height:100%!important;
    max-height:100%!important;
    overflow:hidden!important;
    contain:layout paint style!important;
  }
  .aihub-track-pane{
    height:100%!important;
    min-height:0!important;
    max-height:100%!important;
    overflow:hidden!important;
    contain:layout paint style!important;
  }
  .aihub-track-pane>main{
    max-height:calc(100dvh - 64px)!important;
    overflow:hidden!important;
    contain:layout paint style!important;
  }
  .aihub-track-stage .loading-block,
  .aihub-track-stage .skeleton-card{
    animation:none!important;
  }
  .ai-grid{contain:layout paint style}
  .ai-card{
    content-visibility:auto;
    contain-intrinsic-size:170px;
  }
}
/* V3.0.12 PLUS BADGE START */
@media(max-width:820px){
  .mobile-nav a .plus-badge{
    width:29px!important;
    height:26px!important;
    display:grid!important;
    place-items:center!important;
    border:1.6px solid currentColor!important;
    border-radius:7px!important;
    background:transparent!important;
    color:inherit!important;
    font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif!important;
    font-size:8.5px!important;
    line-height:1!important;
    font-weight:850!important;
    letter-spacing:-.15px!important;
    box-shadow:none!important;
    transform:none!important;
    filter:none!important;
    transition:none!important;
  }
  .mobile-nav a.active .plus-badge{
    border-width:1.7px!important;
  }
}
/* V3.0.12 PLUS BADGE END */
/* V3.0.14 WRENCH 06 START */
@media(max-width:820px){
  .mobile-nav a .wrench-icon{
    width:30px!important;
    height:28px!important;
    display:block!important;
    flex:0 0 28px!important;
    font-size:0!important;
    line-height:0!important;
    background-color:currentColor!important;
    -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M21.2 6.15a6.1 6.1 0 0 1-7.9 7.9l-6.58 6.58a3.15 3.15 0 1 1-4.45-4.45l6.58-6.58a6.1 6.1 0 0 1 7.9-7.9l-3.2 3.2 1.25 3 3 1.25 3.4-3Z' fill='black'/%3E%3C/svg%3E") center/22px 22px no-repeat!important;
    mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M21.2 6.15a6.1 6.1 0 0 1-7.9 7.9l-6.58 6.58a3.15 3.15 0 1 1-4.45-4.45l6.58-6.58a6.1 6.1 0 0 1 7.9-7.9l-3.2 3.2 1.25 3 3 1.25 3.4-3Z' fill='black'/%3E%3C/svg%3E") center/22px 22px no-repeat!important;
    transform:none!important;
    filter:none!important;
    transition:none!important;
    box-shadow:none!important;
  }
}
/* V3.0.14 WRENCH 06 END */