/* ==================== 言火布局样式 - 设计令牌 ==================== */
:root{
  --brand:#1980FA; --brand-dark:#0B5FD9; --brand-light:#E8F2FF;
  --flame:#FF5A36;  --flame-light:#FFECE6;
  --bg:#F4F6FB;     --surface:#FFFFFF;
  --ink-1:#0F1B2D;  --ink-2:#46546A;  --ink-3:#8A95A8;  --ink-4:#B6BFD0;
  --line:#E8ECF3;   --line-strong:#D5DCE8;
  --side-bg:#FBFCFE;
  --radius:14px;    --radius-sm:10px;
  --shadow-card:0 1px 2px rgba(15,27,45,.04);
  --shadow-md:0 6px 20px rgba(15,27,45,.07);
  --shadow-lg:0 14px 40px rgba(15,27,45,.12);
  --shadow-brand:0 8px 22px rgba(25,128,250,.25);
  --topbar-h:56px;
  --side-w:240px; --side-collapsed-w:64px;
  --footer-h:32px;
}
/* ==================== 页面布局：顶栏 + 内容 + 底部 ==================== */
body{display:flex;flex-direction:column;height:100vh!important;overflow:hidden}
.topbar{flex-shrink:0}
#app{flex-shrink:0;height:calc(100vh - var(--topbar-h) - var(--footer-h))!important;min-height:0;display:flex;flex-direction:column;overflow:hidden}
.footer{flex-shrink:0}
/* 暗色主题 */
html.dark{
  --brand:#4DA3FF; --brand-dark:#1980FA; --brand-light:#11243F;
  --flame:#FF6B4A;  --flame-light:#2E1A14;
  --bg:#0A0E16;     --surface:#141B28;
  --ink-1:#F1F5FB;  --ink-2:#AEB9CC;  --ink-3:#7C879B;  --ink-4:#566176;
  --line:#222D40;   --line-strong:#324155;
  --side-bg:#0E141F;
  --shadow-card:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 6px 20px rgba(0,0,0,.4);
  --shadow-lg:0 14px 40px rgba(0,0,0,.55);
}

/* ==================== 顶部导航栏 ==================== */
.topbar{
  flex-shrink:0;height:var(--topbar-h);
  background:rgba(255,255,255,.85);backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;z-index:99;position:relative;
}
.topbar-in{width:100%;padding:0 16px 0 0;display:flex;align-items:center;gap:14px}
.brand-toggle{
  width:calc(var(--side-w) - 8px);display:flex;align-items:center;gap:10px;padding:0 14px;
  transition:width .25s cubic-bezier(.4,0,.2,1);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-width:0}
.brand-logo-img{height:36px;width:auto;object-fit:contain;flex-shrink:0;border-radius:8px}
.brand-text{display:flex;flex-direction:column;line-height:1.12;min-width:0}
.brand-name{font-weight:800;font-size:17px;letter-spacing:.4px;white-space:nowrap}
.brand-name .flame{color:var(--flame)}
.brand-slogan{font-size:10.5px;color:var(--ink-3);white-space:nowrap}
.collapse-btn{margin-left:auto;width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--ink-3);background:transparent;transition:all .15s}
.collapse-btn:hover{background:var(--brand-light);color:var(--brand)}
.collapse-btn svg{width:14px;height:14px;transition:transform .25s}
.collapsed .collapse-btn svg{transform:rotate(180deg)}

.topnav{display:flex;align-items:center;gap:4px;margin-left:6px}
.topnav a{display:flex;align-items:center;gap:6px;padding:7px 14px;border-radius:9px;font-size:13.5px;font-weight:600;color:var(--ink-2);transition:all .15s}
.topnav a:hover{background:var(--brand-light);color:var(--brand)}
.topnav a.active{background:var(--brand-light);color:var(--brand)}
.topnav a svg{width:15px;height:15px}
.topnav a .dot{width:5px;height:5px;border-radius:50%;background:var(--flame);margin-left:2px}

.top-search{flex:1;max-width:480px;position:relative}
.top-search input{width:100%;height:38px;padding:0 14px 0 40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink-1);font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s}
.top-search input:focus{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-light)}
.top-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--ink-3)}
.kbd-hint{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:11px;color:var(--ink-3);padding:2px 6px;border-radius:5px;background:var(--bg);border:1px solid var(--line);font-family:ui-monospace,monospace}

.top-actions{display:flex;align-items:center;gap:6px;margin-left:auto;flex-shrink:0}
.icon-btn{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);transition:all .18s;position:relative}
.icon-btn:hover{background:var(--brand-light);color:var(--brand)}
.icon-btn svg{width:18px;height:18px}
/* 角标样式由 JS 动态设置（initBadgeStyle） */
.user-chip{display:flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:22px;background:var(--surface);border:1px solid var(--line);cursor:pointer;transition:all .15s}
.user-chip:hover{border-color:var(--brand)}
.user-chip .av{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:12px}
.user-chip .nm{font-size:13px;font-weight:600}
.user-chip .lv{font-size:10px;padding:1px 6px;border-radius:6px;background:linear-gradient(135deg,#FFD27A,#FF9A3C);color:#fff;font-weight:700}

/* ==================== 顶栏下拉面板 ==================== */
.dropdown-wrap{position:relative}
.dropdown{
  position:absolute;top:calc(100% + 8px);right:0;z-index:400;
  min-width:340px;background:var(--surface);border:1px solid var(--line);
  border-radius:14px;box-shadow:0 16px 48px rgba(15,27,45,.16);
  opacity:0;visibility:hidden;transform:translateY(-8px) scale(.96);
  transition:opacity .18s,transform .18s,visibility .18s;transform-origin:top right;
}
.dropdown.show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}

/* ==================== 通知下拉 Tab ==================== */
.dd-tabs{display:flex;align-items:center;padding:14px 16px 10px;border-bottom:1px solid var(--line);gap:4px}
.dd-tab{font-size:13px;font-weight:600;color:var(--ink-3);cursor:pointer;padding:5px 14px;border-radius:8px;transition:all .15s}
.dd-tab:hover{color:var(--ink-1);background:var(--bg)}
.dd-tab.active{color:var(--brand);background:var(--brand-light)}
.dd-tabs .clear{margin-left:auto;font-size:11px;color:var(--brand);cursor:pointer;font-weight:600}
.dd-tab-panel{overflow:hidden}
.dd-notice-list{max-height:320px;overflow-y:auto;padding:4px}
.dd-notice-item{display:flex;gap:10px;padding:10px 12px;border-radius:9px;cursor:pointer;transition:background .15s}
.dd-notice-item:hover{background:var(--bg)}
.dd-notice-item .dot{width:8px;height:8px;border-radius:50%;background:var(--flame);flex-shrink:0;margin-top:5px}
.dd-notice-item.read .dot{background:var(--ink-4)}
.dd-notice-item .body{flex:1;min-width:0}
.dd-notice-item .ttl{font-size:13px;font-weight:600;color:var(--ink-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dd-notice-item .desc{font-size:11.5px;color:var(--ink-3);margin-top:2px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dd-notice-item .tm{font-size:10.5px;color:var(--ink-4);margin-top:3px}
.dd-notice-empty{text-align:center;padding:30px 0;font-size:13px;color:var(--ink-3)}
/* 公告详情弹窗 */
.notice-detail-mask{position:fixed;inset:0;z-index:1002;background:rgba(15,27,45,.5);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:24px;animation:fadeIn .2s}
.notice-detail-mask.show{display:flex}
.notice-detail-box{width:min(640px,95vw);max-height:80vh;background:var(--surface);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 24px 64px rgba(0,0,0,.3);transform:scale(.96);opacity:0;transition:transform .22s,opacity .22s}
.notice-detail-mask.show .notice-detail-box{transform:scale(1);opacity:1}
.notice-detail-close{position:absolute;top:14px;right:16px;width:32px;height:32px;border-radius:50%;background:var(--bg);color:var(--ink-2);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;z-index:5}
.notice-detail-close:hover{background:var(--line-strong);color:var(--ink-1);transform:rotate(90deg)}
.notice-detail-close svg{width:16px;height:16px}
.notice-detail-hd{padding:24px 24px 0;position:relative}
.notice-detail-tag{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:6px;background:var(--brand-light);color:var(--brand);font-size:11px;font-weight:700;margin-bottom:10px}
.notice-detail-title{font-size:19px;font-weight:800;color:var(--ink-1);line-height:1.4}
.notice-detail-time{font-size:12px;color:var(--ink-3);margin-top:8px;display:flex;align-items:center;gap:6px}
.notice-detail-body{padding:16px 24px 24px;overflow-y:auto;flex:1}
.notice-detail-body p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:12px}
.notice-detail-body p:last-child{margin-bottom:0}
.notice-detail-actions{padding:14px 24px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}
.notice-detail-actions .nd-btn{padding:9px 22px;border-radius:10px;font-size:13px;font-weight:700;cursor:pointer;transition:all .15s}
.notice-detail-actions .nd-btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:0 4px 12px rgba(25,128,250,.3)}
.notice-detail-actions .nd-btn-primary:hover{transform:translateY(-1px)}

/* 命令面板 (Ctrl+K) */
.cmdk-mask{position:fixed;inset:0;z-index:1002;background:rgba(15,27,45,.55);backdrop-filter:blur(8px);display:none;align-items:flex-start;justify-content:center;padding-top:120px}
.cmdk-mask.show{display:flex}
.cmdk{width:min(560px,92vw);background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 64px rgba(0,0,0,.32);overflow:hidden}
.cmdk-in{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line)}
.cmdk-in svg{width:18px;height:18px;color:var(--ink-3);flex-shrink:0}
.cmdk-in input{flex:1;border:none;outline:none;background:transparent;font-size:15px;color:var(--ink-1)}
.cmdk-list{max-height:420px;overflow-y:auto;padding:8px}
.cmdk-section{padding:8px 10px 4px;font-size:11px;font-weight:700;color:var(--ink-3);letter-spacing:.5px}
.cmdk-row{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;cursor:pointer;transition:all .15s}
.cmdk-row:hover{background:var(--brand-light);color:var(--brand)}
.cmdk-row .ic{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--ink-2);font-size:14px}
.cmdk-row .ic svg{width:14px;height:14px}
.cmdk-row .nm{flex:1;font-size:13.5px;font-weight:600}
.cmdk-row .key{font-size:11px;padding:1px 6px;border-radius:5px;background:var(--bg);color:var(--ink-3);font-family:ui-monospace,monospace}

/* 个人中心面板 */
.dd-user-hd{padding:16px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,var(--brand-light),transparent)}
.dd-user-hd .av-lg{width:44px;height:44px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:17px;flex-shrink:0;box-shadow:0 4px 12px rgba(25,128,250,.3)}
.dd-user-hd .info{flex:1;min-width:0}
.dd-user-hd .nm{font-size:15px;font-weight:700;color:var(--ink-1)}
.dd-user-hd .meta{font-size:11.5px;color:var(--ink-3);margin-top:2px;display:flex;align-items:center;gap:6px}
.dd-user-hd .meta .lv-tag{padding:1px 7px;border-radius:5px;background:linear-gradient(135deg,#FFD27A,#FF9A3C);color:#fff;font-weight:700;font-size:10px}
.dd-user-stats{display:flex;padding:10px 0;border-bottom:1px solid var(--line)}
.dd-user-stats .st{flex:1;text-align:center;padding:4px 0}
.dd-user-stats .st .num{font-size:16px;font-weight:800;color:var(--ink-1)}
.dd-user-stats .st .lbl{font-size:10.5px;color:var(--ink-3);margin-top:1px}
.dd-user-menu{padding:4px}
.dd-user-menu .mi{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--ink-2);transition:all .15s}
.dd-user-menu .mi:hover{background:var(--bg);color:var(--brand)}
.dd-user-menu .mi svg{width:16px;height:16px;flex-shrink:0}
.dd-user-menu .mi .arr{margin-left:auto;color:var(--ink-4);font-size:12px}
.dd-user-menu .divider{height:1px;background:var(--line);margin:4px 8px}
.dd-user-menu .mi.danger{color:#E53E3E}
.dd-user-menu .mi.danger:hover{background:#FFF0F0;color:#E53E3E}

/* ==================== 左侧主导航 ==================== */
/* 覆盖 index.css 中对 menus_box 的宽度限制 */
.menus_box{max-width:none!important;width:auto!important}
.n-layout-sider-scroll-container{overflow:hidden!important}
.n-layout-sider.menus_box,
.n-layout-sider.menus_box .n-layout-sider-scroll-container{height:100%}
.side-nav{
  width:var(--side-w);height:100%;
  background:var(--side-bg);border-right:1px solid var(--line);
  flex-shrink:0;display:flex;flex-direction:column;
  transition:width .25s cubic-bezier(.4,0,.2,1);
  overflow:hidden;
}
.collapsed .side-nav{width:var(--side-collapsed-w);overflow:visible!important}
.collapsed .n-layout-sider-scroll-container{overflow:visible!important}
.collapsed .n-layout > .n-layout-scroll-container{overflow-x:visible}
.collapsed .n-layout-content .n-layout-scroll-container{overflow-x:hidden}

.side-nav-top{padding:10px 8px 0;flex-shrink:0}
.side-nav-mid{flex:1;min-height:0;overflow-y:auto;padding:10px 8px 4px}
.side-nav-bottom{padding:0 8px 10px;flex-shrink:0}

.nav-entry{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-light),#F0E6FF);
  border:1px solid color-mix(in srgb,var(--brand) 14%,transparent);
  cursor:pointer;transition:all .18s;position:relative;overflow:hidden;
}
.nav-entry:hover{transform:translateY(-1px);box-shadow:0 6px 18px color-mix(in srgb,var(--brand) 18%,transparent)}
.nav-entry::after{content:"";position:absolute;right:-20px;top:-20px;width:60px;height:60px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,54,.18),transparent 65%);pointer-events:none}
.nav-entry .ic{width:28px;height:28px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:0 3px 8px rgba(25,128,250,.3)}
.nav-entry .ic svg{width:15px;height:15px}
.nav-entry .text{display:flex;flex-direction:column;min-width:0;flex:1}
.nav-entry .t1{font-size:13px;font-weight:700;color:var(--ink-1)}
.nav-entry .t2{font-size:11px;color:var(--ink-3)}
.nav-entry .arr{color:var(--brand);font-size:14px;font-weight:700}
.collapsed .nav-entry{padding:9px 0;justify-content:center}
.collapsed .nav-entry .text,.collapsed .nav-entry .arr{display:none}

.nav-group{display:flex;flex-direction:column;gap:2px}
.nav-group-hd{display:flex;align-items:center;gap:6px;padding:4px 10px 2px;font-size:10.5px;font-weight:700;color:var(--ink-3);letter-spacing:.6px;text-transform:uppercase;user-select:none}
.nav-group-hd .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-4)}
.nav-group-hd .lbl{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-group-hd .ctr{font-size:10px;color:var(--ink-4);font-weight:500;letter-spacing:0}
.collapsed .nav-group-hd .lbl,.collapsed .nav-group-hd .ctr{display:none}

.nav-item{position:relative;display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;cursor:pointer;color:var(--ink-2);font-size:13.5px;font-weight:500;transition:all .18s;white-space:nowrap;overflow:hidden}
.nav-item .ic{width:26px;height:26px;border-radius:7px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--c,#1980FA) 11%,transparent);color:var(--c,#1980FA);transition:all .18s}
.nav-item .ic svg{width:14px;height:14px}
.nav-item .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis}
.nav-item .tag{font-size:10px;padding:1px 6px;border-radius:6px;font-weight:700;flex-shrink:0;background:var(--bg);color:var(--ink-3)}
.nav-item:hover{background:var(--brand-light);color:var(--brand)}
.nav-item:hover .ic{transform:scale(1.05)}
.nav-item.active,.nav-item.is-active{background:linear-gradient(90deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)));color:#fff;font-weight:700;box-shadow:0 4px 14px color-mix(in srgb,var(--c,var(--brand)) 32%,transparent)}
.nav-item.active .ic,.nav-item.is-active .ic{background:rgba(255,255,255,.22);color:#fff}
.nav-item.active .tag,.nav-item.is-active .tag{background:rgba(255,255,255,.22);color:#fff}

.nav-item.is-yanhuo::before{content:"";position:absolute;left:28px;top:7px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--flame),#FF8A5B);box-shadow:0 0 0 2px var(--side-bg)}
.collapsed .nav-item.is-yanhuo::before{left:6px;top:6px}

.collapsed .nav-item{justify-content:center;padding:8px 0}
.collapsed .nav-item .nm,.collapsed .nav-item .tag{display:none}
.collapsed .nav-item .ic{width:30px;height:30px}
.collapsed .nav-item:hover::after{content:attr(data-tooltip);position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);background:rgba(15,27,45,.92);color:#fff;padding:6px 10px;border-radius:6px;font-size:12px;white-space:nowrap;z-index:300;pointer-events:none;box-shadow:0 4px 12px rgba(0,0,0,.18)}
.collapsed .nav-item:hover::before{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:6px solid transparent;border-right-color:rgba(15,27,45,.92);z-index:300}

/* 折叠状态下 .nav-entry 的 tooltip */
.collapsed .nav-entry{position:relative}
.collapsed .nav-entry:hover::after{content:attr(data-sidebar-tip);position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);background:rgba(15,27,45,.92);color:#fff;padding:6px 10px;border-radius:6px;font-size:12px;white-space:nowrap;z-index:9999;pointer-events:none;box-shadow:0 4px 12px rgba(0,0,0,.18)}
.collapsed .nav-entry:hover::before{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:6px solid transparent;border-right-color:rgba(15,27,45,.92);z-index:9999}

.nav-item .key{font-size:10px;padding:1px 5px;border-radius:4px;background:rgba(0,0,0,.06);color:var(--ink-3);font-family:ui-monospace,monospace;font-weight:600}
.nav-item.active .key,.nav-item.is-active .key{background:rgba(255,255,255,.22);color:rgba(255,255,255,.85)}
.collapsed .nav-item .key{display:none}

.nav-divider{height:1px;background:var(--line);margin:6px 4px}
.collapsed .nav-divider{margin:6px 8px}

.user-card{padding:10px 12px;border-radius:11px;background:linear-gradient(135deg,#0B1B33 0%,#14306B 55%,#1B4FA8 100%);color:#fff;position:relative;overflow:hidden;display:flex;align-items:center;gap:10px}
.user-card::before{content:"";position:absolute;right:-30px;bottom:-30px;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,54,.35),transparent 65%);pointer-events:none}
.user-card .av{width:34px;height:34px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex-shrink:0;box-shadow:0 4px 10px rgba(255,90,54,.4);position:relative;z-index:1}
.user-card .info{flex:1;min-width:0;position:relative;z-index:1}
.user-card .nm{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-card .lv{font-size:11px;color:rgba(255,255,255,.7);margin-top:1px}
.user-card .stat{display:flex;gap:8px;margin-top:4px;font-size:10.5px;color:rgba(255,255,255,.75)}
.user-card .stat b{color:#FFD27A;font-weight:700}
.collapsed .user-card{padding:6px;justify-content:center}
.collapsed .user-card .info{display:none}

/* ==================== 底部版权块 ==================== */
.footer{padding:6px 22px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:11px;color:var(--ink-3);border-top:1px solid var(--line);background:var(--surface);flex-shrink:0;height:var(--footer-h)}
.footer a{color:var(--ink-3);margin:0 3px;transition:color .15s}
.footer a:hover{color:var(--brand)}

/* ==================== v2 主分类色 ==================== */
[data-c="chat"]{--c:#1980FA;--c2:#4DA3FF}
[data-c="write"]{--c:#6C4CE6;--c2:#9B7BF0}
[data-c="draw"]{--c:#EC4899;--c2:#F472B6}
[data-c="video"]{--c:#FF5A36;--c2:#FF8A5B}
[data-c="voice"]{--c:#16A37C;--c2:#34D399}
[data-c="office"]{--c:#F59E0B;--c2:#FBBF24}
[data-c="code"]{--c:#6366F1;--c2:#818CF8}
[data-c="search"]{--c:#06B6D4;--c2:#22D3EE}
[data-c="agent"]{--c:#8B5CF6;--c2:#A78BFA}
[data-c="design"]{--c:#F43F5E;--c2:#FB7185}
[data-c="translate"]{--c:#14B8A6;--c2:#2DD4BF}
[data-c="ecom"]{--c:#0EA5E9;--c2:#38BDF8}
[data-c="yanhuo"]{--c:#FF5A36;--c2:#FF8A5B}

/* ==================== AI工具导航页 - Hero ==================== */
.hero{position:relative;padding:36px 24px 28px;text-align:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:radial-gradient(900px 360px at 16% -10%,rgba(25,128,250,.16),transparent 60%),radial-gradient(720px 340px at 88% 0%,rgba(255,90,54,.12),transparent 60%)}
.hero-inner{position:relative;z-index:1;max-width:860px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);color:var(--brand);margin-bottom:14px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--flame);box-shadow:0 0 0 4px var(--flame-light)}
.hero h1{font-size:36px;font-weight:800;letter-spacing:-1px;line-height:1.18;margin-bottom:10px;background:linear-gradient(120deg,var(--ink-1) 28%,var(--brand) 68%,var(--flame));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:14.5px;color:var(--ink-2);margin-bottom:22px}

/* 搜索框 */
.search-wrap{max-width:640px;margin:0 auto;position:relative}
.search-box{display:flex;align-items:center;gap:12px;background:var(--surface);border:2px solid var(--line-strong);border-radius:16px;padding:6px 6px 6px 18px;box-shadow:var(--shadow-md);transition:border-color .2s,box-shadow .2s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-light)}
.search-box svg{width:20px;height:20px;color:var(--ink-3);flex-shrink:0}
.search-box input{flex:1;border:none;outline:none;background:transparent;font-size:15px;color:var(--ink-1);padding:9px 0}
.search-box input::placeholder{color:var(--ink-3)}
.search-go{padding:9px 22px;border-radius:12px;font-size:14px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-dark));transition:transform .15s;white-space:nowrap;cursor:pointer;border:none}
.search-go:hover{transform:scale(1.04)}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:14px}
.search-tag{font-size:12px;padding:5px 12px;border-radius:8px;background:var(--surface);border:1px solid var(--line);color:var(--ink-2);transition:all .18s;cursor:pointer}
.search-tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.stats{display:flex;justify-content:center;gap:36px;margin-top:22px;flex-wrap:wrap}
.stat{text-align:center}
.stat-num{font-size:22px;font-weight:800;color:var(--brand)}
.stat-label{font-size:12px;color:var(--ink-3);margin-top:1px}

/* v2 主体:左分类 + 右内容 */
.app-body{max-width:1440px;margin:8px auto 0;padding:0 8px;display:flex;align-items:flex-start;gap:22px}
.app-body .side-nav{
  position:sticky;top:calc(var(--topbar-h) + 48px);
  width:240px;flex-shrink:0;
  background:var(--side-bg);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-card);
  overflow:hidden;height:auto;
}
.app-body .side-nav-hd{padding:14px 16px 10px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.app-body .side-nav-hd h3{font-size:13px;font-weight:700;color:var(--ink-1);letter-spacing:.3px;display:flex;align-items:center;gap:6px}
.app-body .side-nav-hd h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--flame))}
.app-body .side-nav-hd .tip{font-size:11px;color:var(--ink-3)}
.app-body .side-nav ul{list-style:none;padding:6px}
.app-body .side-nav li{position:relative;display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;cursor:pointer;color:var(--ink-2);font-size:13.5px;font-weight:500;transition:background .18s,color .18s,transform .12s}
.app-body .side-nav li:hover{background:var(--brand-light);color:var(--brand)}
.app-body .side-nav li:active{transform:scale(0.97)}
.app-body .side-nav li.active{background:linear-gradient(90deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)));color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(25,128,250,.18);transform:none}
.app-body .side-nav li .ic{width:26px;height:26px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--c,#1980FA) 12%,transparent);color:var(--c,#1980FA);transition:all .18s}
.app-body .side-nav li .ic svg{width:15px;height:15px}
.app-body .side-nav li .ic img{width:15px;height:15px;object-fit:contain}
.app-body .side-nav li .name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-body .side-nav li .count{font-size:11px;color:var(--ink-3);background:var(--bg);padding:1px 7px;border-radius:10px}
.app-body .side-nav li.active .count{background:rgba(255,255,255,.22);color:#fff}
.app-body .side-nav li.active .ic{background:rgba(255,255,255,.22);color:#fff}
.app-body [data-c="write"]{--c:#6C4CE6;--c2:#9B7BF0}
.app-body [data-c="chat"]{--c:#1980FA;--c2:#4DA3FF}
.app-body [data-c="draw"]{--c:#EC4899;--c2:#F472B6}
.app-body [data-c="video"]{--c:#FF5A36;--c2:#FF8A5B}
.app-body [data-c="voice"]{--c:#16A37C;--c2:#34D399}
.app-body [data-c="office"]{--c:#F59E0B;--c2:#FBBF24}
.app-body [data-c="code"]{--c:#6366F1;--c2:#818CF8}
.app-body [data-c="design"]{--c:#F43F5E;--c2:#FB7185}
.app-body [data-c="ecom"]{--c:#0EA5E9;--c2:#38BDF8}
.app-body [data-c="search"]{--c:#06B6D4;--c2:#22D3EE}
.app-body [data-c="agent"]{--c:#8B5CF6;--c2:#A78BFA}
.app-body [data-c="translate"]{--c:#14B8A6;--c2:#2DD4BF}
.app-body [data-c="yanhuo"]{--c:#FF5A36;--c2:#FF8A5B}
.app-body .main{flex:1;min-width:0;display:flex;flex-direction:column;gap:22px}

/* 全局 sec-hd 基础样式 */
.sec-hd{display:flex;align-items:center;gap:10px;margin-bottom:8px;position:relative;z-index:1}
.sec-hd h2{font-size:14px;font-weight:800;color:var(--ink-1);display:flex;align-items:center;gap:8px}
.sec-hd h2::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--flame))}
.sec-hd h2 .tag{font-size:10px;padding:1px 6px;border-radius:5px;background:var(--brand-light);color:var(--brand);font-weight:600;margin-left:4px}
.sec-hd .more{font-size:13px;font-weight:500;cursor:pointer;transition:color .15s;text-decoration:none}
.sec-hd .more:hover{color:var(--brand)}

/* v2 yanhuo-block(言火自研专区) */
.yanhuo-block{position:relative;border-radius:var(--radius);background:linear-gradient(135deg,#0B1B33 0%,#14306B 55%,#1B4FA8 100%);padding:22px 24px;color:#fff;overflow:hidden;box-shadow:0 10px 30px rgba(11,91,217,.18);scroll-margin-top:80px}
.yanhuo-block::before{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,54,.4),transparent 65%);pointer-events:none}
.yanhuo-block::after{content:"";position:absolute;left:-40px;bottom:-80px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(25,128,250,.45),transparent 65%);pointer-events:none}
.yanhuo-block .sec-hd{position:relative;z-index:1;margin-bottom:14px}
.yanhuo-block .sec-hd h2{color:#fff}
.yanhuo-block .sec-hd h2::before{background:linear-gradient(180deg,#FF8A5B,#FF5A36)}
.yanhuo-block .sec-hd h2 .tag{background:rgba(255,138,91,.18);color:#FFB99A}
.yanhuo-block .sec-hd .more{color:rgba(255,255,255,.7)}
.yanhuo-block .sec-hd .more:hover{color:#fff}
.yanhuo-block .yh-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.yanhuo-block .yh-item{min-width:0;display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:11px;border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(6px);transition:all .2s;cursor:pointer;text-decoration:none;color:#fff;background:rgba(255,255,255,.08)}
.yanhuo-block .yh-item:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);border-color:rgba(255,138,91,.5);box-shadow:0 8px 18px rgba(0,0,0,.18)}
.yanhuo-block .yh-item .ic{width:34px;height:34px;border-radius:9px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(255,90,54,.85),rgba(255,138,91,.7));color:#fff;box-shadow:0 4px 10px rgba(255,90,54,.3)}
.yanhuo-block .yh-item .ic svg{width:18px;height:18px}
.yanhuo-block .yh-item .ic img{width:18px;height:18px;object-fit:contain}
.yanhuo-block .yh-item .text{display:flex;flex-direction:column;min-width:0;overflow:hidden}
.yanhuo-block .yh-item .t1{display:block;font-size:13.5px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.yanhuo-block .yh-item .t2{display:block;font-size:11px;color:rgba(255,255,255,.65);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* v2 cat-block(当前分类) - app-body 范围内 */
.app-body .cat-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow-card);scroll-margin-top:80px}
.app-body .cat-block .sec-hd{margin-bottom:14px}
.app-body .cat-block .sec-hd h2{color:var(--ink-1);font-size:18px;font-weight:800}
.app-body .cat-block .sec-hd h2::before{width:4px;height:18px;background:linear-gradient(180deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)))}
.app-body .cat-block .sec-hd h2 .tag{background:var(--brand-light);color:var(--brand);font-size:11px;padding:2px 8px;border-radius:6px;margin-left:4px}
.app-body .cat-block .sec-hd .more{color:var(--ink-3);font-size:13px}
.app-body .cat-block .sec-hd .more:hover{color:var(--brand)}
.app-body .cat-block .tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.app-body .cat-block .tool-card{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:11px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);position:relative;transition:all .2s;cursor:pointer;text-decoration:none;color:inherit}
.app-body .cat-block .tool-card:hover{transform:translateY(-2px);border-color:var(--c,var(--brand));box-shadow:0 8px 22px color-mix(in srgb,var(--c,var(--brand)) 18%,transparent)}
.app-body .cat-block .tool-card .logo{width:36px;height:36px;border-radius:9px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:#fff;background:linear-gradient(135deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)));box-shadow:0 3px 8px color-mix(in srgb,var(--c,var(--brand)) 28%,transparent)}
.app-body .cat-block .tool-card .logo img{width:20px;height:20px;object-fit:contain}
.app-body .cat-block .tool-card .meta{display:flex;flex-direction:column;min-width:0}
.app-body .cat-block .tool-card .name{font-size:13.5px;font-weight:700;color:var(--ink-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-body .cat-block .tool-card .desc{font-size:11.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.app-body .cat-block .tool-card .badge{position:absolute;top:8px;right:8px;font-size:9.5px;padding:1px 6px;border-radius:6px;background:linear-gradient(135deg,var(--flame),#FF8A5B);color:#fff;font-weight:700}
.app-body .cat-block .tool-card .icon-box{position:absolute;top:6px;right:6px;display:flex;gap:3px;opacity:0;transition:opacity .15s}
.app-body .cat-block .tool-card:hover .icon-box{opacity:1}
.app-body .cat-block .tool-card .icon-box i{font-size:12px;padding:2px 4px;border-radius:4px;background:var(--surface);color:var(--ink-2);cursor:pointer}
.app-body .cat-block .tool-card .icon-box i:hover{color:var(--brand);background:var(--brand-light)}

/* nav_container 间距（内部 cat-block 为 JS 动态填充，需与上方版块保持间距） */
.app-body #nav_container{margin-top:16px;margin-bottom:16px}
.app-body #nav_container .cat-block + .cat-block{margin-top:16px}

/* 全局 tool-grid / tool-card(用于非 app-body 内场景) */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:6px}
.tool-card{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-card);position:relative;transition:all .2s;cursor:pointer;text-decoration:none;color:inherit}
.tool-card:hover{transform:translateY(-1px);border-color:var(--c,var(--brand));box-shadow:0 5px 14px color-mix(in srgb,var(--c,var(--brand)) 18%,transparent)}
.tool-card .logo{width:28px;height:28px;border-radius:7px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:11.5px;color:#fff;background:linear-gradient(135deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)));box-shadow:0 2px 6px color-mix(in srgb,var(--c,var(--brand)) 28%,transparent)}
.tool-card .logo img{width:16px;height:16px;object-fit:contain}
.tool-card .meta{display:flex;flex-direction:column;min-width:0}
.tool-card .name{font-size:12.5px;font-weight:700;color:var(--ink-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tool-card .desc{font-size:10.5px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.tool-card .badge{position:absolute;top:5px;right:5px;font-size:8.5px;padding:0 4px;border-radius:4px;background:linear-gradient(135deg,var(--flame),#FF8A5B);color:#fff;font-weight:700}
.tool-card .icon-box{position:absolute;top:5px;right:5px;display:flex;gap:2px;opacity:0;transition:opacity .15s}
.tool-card:hover .icon-box{opacity:1}
.tool-card .icon-box i{font-size:11px;padding:1px 3px;border-radius:3px;background:var(--surface);color:var(--ink-2);cursor:pointer}
.tool-card .icon-box i:hover{color:var(--brand);background:var(--brand-light)}

/* nav-cat-section(紧凑版,用于非 app-body 内) */
.nav-cat-section{background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:10px 14px;box-shadow:var(--shadow-card);margin-top:8px}
.nav-cat-section .sec-hd{margin-bottom:7px}
.nav-cat-section .sec-hd h2{color:var(--ink-1);font-size:13.5px}
.nav-cat-section .sec-hd h2::before{background:linear-gradient(180deg,var(--c,var(--brand)),var(--c2,var(--brand-dark)));width:3px;height:13px}
.nav-cat-section .sec-hd h2 .tag{background:var(--brand-light);color:var(--brand);font-size:10px;padding:1px 5px;border-radius:4px}

/* 广告位 */
#adsBox{margin-top:16px}
#adsBox a{display:block;margin-bottom:10px}
#adsBox img{width:100%;border-radius:var(--radius-sm)}