:root { --ut-navy:#08233f; --ut-blue:#39739f; --ut-ice:#edf6fb; --ut-line:#dbe6ef; --ut-muted:#718297; }
body { color:#14283c !important; background:radial-gradient(circle at 90% 0%,rgba(142,198,230,.25),transparent 28rem),#f4f7fa !important; font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif !important; }
h1,h2,h3 { color:var(--ut-navy) !important; letter-spacing:-.02em; }
.card,.section,main.login-card,.knowledge-card,.user-card,.item-row { border-color:var(--ut-line) !important; border-radius:16px !important; box-shadow:0 10px 28px rgba(8,35,63,.055) !important; }
input,select,textarea { border-color:var(--ut-line) !important; border-radius:12px !important; }
input:focus,select:focus,textarea:focus { outline:0; border-color:#7fafd0 !important; box-shadow:0 0 0 3px rgba(57,115,159,.12); }
button { border-radius:12px !important; background:var(--ut-navy) !important; }
button,.knowledge-card,.item-row,.topbar a { transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease; }
button:active,.knowledge-card:active,.item-row:active,.topbar a:active { transform:scale(.98); }
button.secondary { color:var(--ut-navy) !important; background:var(--ut-ice) !important; }
button.danger { color:#fff !important; background:#c83d47 !important; }
button:disabled { color:#718297 !important; background:#dbe4ec !important; box-shadow:none !important; }
.back-link,.topbar a,.back { color:var(--ut-navy) !important; }
.category-button.active { border-color:var(--ut-navy) !important; background:var(--ut-navy) !important; }
.category-tag,.category { color:#285e87 !important; background:#e2f1fa !important; }
.page-login { background:linear-gradient(155deg,#061e37 0%,#174f78 48%,#e8f3f9 48.1%,#f7fafc 100%) !important; }
.page-login main { position:relative; overflow:hidden; border:1px solid rgba(255,255,255,.8); border-radius:24px; box-shadow:0 25px 60px rgba(4,24,44,.24); }
.page-login main::before { content:"销售工作台"; display:inline-flex; margin-bottom:18px; padding:5px 9px; border-radius:999px; color:#2d638b; background:var(--ut-ice); font-size:12px; font-weight:800; }
.page-login button { min-height:48px; }
.empty { padding:24px 12px !important; color:var(--ut-muted) !important; text-align:center; line-height:1.55; }
.empty::before { display:block; width:34px; height:34px; margin:0 auto 9px; border:1px solid var(--ut-line); border-radius:12px; background:var(--ut-ice); content:""; }