/* ============================================================
   AI宝贝 控制面板 — 深度美化样式表 v2.0
   主题：赛博青绿 · 玻璃态 · 科技感
============================================================ */
:root {
  --primary: #00c9a7;
  --primary-light: #4dd0e1;
  --primary-dark: #00b894;
  --primary-glow: rgba(0,201,167,0.3);
  --primary-bg: rgba(0,201,167,0.08);
  --bg-deep: #070d1a;
  --bg-card: rgba(12,22,45,0.85);
  --bg-card-hover: rgba(18,32,60,0.9);
  --bg-glass: rgba(255,255,255,0.03);
  --text-primary: #e8edf5;
  --text-secondary: #7a8ba0;
  --text-muted: #4a5a70;
  --border: rgba(0,201,167,0.12);
  --border-light: rgba(0,201,167,0.06);
  --danger: #ff6b6b;
  --warning: #ffd93d;
  --success: #00c9a7;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0,0,0,0.3);
  --shadow-glow: 0 0 30px rgba(0,201,167,0.08);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font: 'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family: var(--font); background: var(--bg-deep); color: var(--text-primary); overflow-x:hidden; min-height:100vh; -webkit-font-smoothing:antialiased; }
::selection { background: var(--primary); color: #fff; }
::-webkit-scrollbar { width:5px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--border); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--primary); }

/* ============================================================
   SPLASH SCREEN
============================================================ */
#splashScreen {
  position:fixed; inset:0; z-index:9999;
  display:flex; align-items:center; justify-content:center;
  background: var(--bg-deep);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
#splashScreen.fade-out { opacity:0; transform:scale(1.05); pointer-events:none; }
#splashCanvas { position:absolute; inset:0; width:100%; height:100%; }
.splash-content { position:relative; z-index:1; text-align:center; }
/* Animated rings */
.splash-logo-wrap { position:relative; width:120px; height:120px; margin:0 auto 30px; display:flex; align-items:center; justify-content:center; }
.splash-ring {
  position:absolute; inset:0; border-radius:50%;
  border:2px solid rgba(0,201,167,0.15);
  animation: splashRing 3s ease-out infinite;
}
.splash-ring-2 {
  inset:-15px; border-color:rgba(0,201,167,0.08);
  animation-delay:0.5s; animation-duration:4s;
}
@keyframes splashRing {
  0% { transform:scale(0.8); opacity:0; }
  50% { opacity:1; }
  100% { transform:scale(1.3); opacity:0; }
}
.splash-icon {
  font-size:52px; animation: splashIcon 1.5s ease-out;
  filter: drop-shadow(0 0 30px rgba(0,201,167,0.4));
}
@keyframes splashIcon {
  0% { transform:scale(0) rotate(-180deg); opacity:0; }
  60% { transform:scale(1.2) rotate(10deg); }
  100% { transform:scale(1) rotate(0deg); opacity:1; }
}
.splash-title {
  font-size:36px; font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--primary-light),var(--primary));
  background-size:200% 200%;
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  animation: splashGrad 3s ease infinite;
  letter-spacing:4px;
}
@keyframes splashGrad { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }
.splash-sub { color:var(--text-secondary); font-size:14px; margin-top:8px; letter-spacing:2px; opacity:0; animation:fadeUp 0.8s 0.3s forwards; }
.splash-loader { width:200px; height:3px; background:rgba(255,255,255,0.06); border-radius:3px; margin:30px auto 12px; overflow:hidden; position:relative; }
.splash-loader-bar { height:100%; width:30%; background:linear-gradient(90deg,var(--primary),var(--primary-light)); border-radius:3px; animation:splashLoad 2s ease-in-out infinite; position:absolute; }
@keyframes splashLoad { 0%{left:-30%} 100%{left:100%} }
.splash-status { color:var(--text-muted); font-size:12px; letter-spacing:1px; }
@keyframes fadeUp { to { opacity:1; transform:translateY(0); } from { opacity:0; transform:translateY(10px); } }

/* ============================================================
   LOGIN PAGE
============================================================ */
#loginPage { position:fixed; inset:0; display:flex; align-items:center; justify-content:center; z-index:100; }
#particleCanvas { position:fixed; inset:0; width:100%; height:100%; z-index:0; }
.login-container { position:relative; z-index:1; width:100%; padding:20px; display:flex; justify-content:center; }
.login-box {
  background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg);
  padding:45px 40px; width:420px; max-width:100%;
  backdrop-filter:blur(30px); -webkit-backdrop-filter:blur(30px);
  position:relative; overflow:hidden;
  animation: loginFadeIn 0.8s ease-out;
}
@keyframes loginFadeIn {
  from { opacity:0; transform:translateY(20px) scale(0.98); }
  to { opacity:1; transform:translateY(0) scale(1); }
}
.login-box::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--primary-light),transparent);
  background-size:200% 100%; animation: shimmerLine 3s ease infinite;
}
@keyframes shimmerLine { 0%{background-position:-200% 0} 100%{background-position:200% 0} }
.login-logo { text-align:center; margin-bottom:30px; }
.logo-icon { font-size:48px; margin-bottom:10px; display:inline-block; }
.login-logo h1 { font-size:26px; font-weight:700; background:linear-gradient(135deg,var(--primary),var(--primary-light)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.login-logo p { color:var(--text-secondary); font-size:13px; margin-top:5px; }
.form-group { margin-bottom:18px; }
.form-group label { display:block; font-size:13px; color:var(--text-secondary); margin-bottom:6px; font-weight:500; }
.form-group input {
  width:100%; padding:14px 16px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border); border-radius:var(--radius-sm);
  color:#fff; font-size:15px; font-family:var(--font);
  outline:none; transition:var(--transition);
}
.form-group input:focus { border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-glow); background:rgba(0,201,167,0.04); }
.form-group input::placeholder { color:var(--text-muted); }
.login-btn {
  width:100%; padding:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border:none; border-radius:var(--radius-sm);
  color:#fff; font-size:16px; font-weight:600; font-family:var(--font);
  cursor:pointer; transition:var(--transition); position:relative; overflow:hidden;
}
.login-btn:hover { transform:translateY(-2px); box-shadow:0 8px 30px var(--primary-glow); }
.login-btn:active { transform:translateY(0); }
.login-btn::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.15),transparent);
  transform:translateX(-100%); transition:0.5s;
}
.login-btn:hover::after { transform:translateX(100%); }
.login-error { color:var(--danger); font-size:13px; margin-top:10px; display:none; text-align:center; }

/* ============================================================
   MAIN APP LAYOUT
============================================================ */
#mainApp { display:none; position:relative; z-index:1; min-height:100vh; }
.sidebar-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:9; backdrop-filter:blur(4px); }

/* Sidebar */
.sidebar {
  position:fixed; left:0; top:0; width:250px; height:100vh;
  background:var(--bg-card); backdrop-filter:blur(20px);
  border-right:1px solid var(--border); z-index:10;
  display:flex; flex-direction:column;
  transition:transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.sidebar-header {
  padding:20px; border-bottom:1px solid var(--border-light);
  display:flex; align-items:center;
}
.sidebar-logo { display:flex; align-items:center; gap:12px; }
.logo-icon-sm { font-size:28px; }
.sidebar-brand-text { display:flex; flex-direction:column; }
.brand-name { font-size:16px; font-weight:700; background:linear-gradient(135deg,var(--primary),var(--primary-light)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.brand-desc { font-size:11px; color:var(--text-muted); margin-top:1px; }
.sidebar-nav { flex:1; overflow-y:auto; padding:10px 0; }
.nav-item {
  display:flex; align-items:center; gap:12px;
  padding:12px 20px; cursor:pointer;
  color:var(--text-secondary); font-size:14px;
  transition:var(--transition);
  border-left:3px solid transparent;
  position:relative;
}
.nav-item:hover { background:var(--primary-bg); color:var(--text-primary); }
.nav-item.active { background:var(--primary-bg); color:var(--primary); border-left-color:var(--primary); }
.nav-item .nav-icon { font-size:16px; width:20px; text-align:center; }
.nav-item .nav-arrow { margin-left:auto; font-size:10px; transition:transform 0.3s; }
.nav-item.open .nav-arrow { transform:rotate(180deg); }
.sub-nav { display:none; }
.sub-nav .nav-item { padding-left:52px; font-size:13px; }
.sub-nav.show { display:block; animation:slideDown 0.2s ease; }
@keyframes slideDown { from { opacity:0; transform:translateY(-5px); } to { opacity:1; transform:translateY(0); } }
.sidebar-footer { padding:12px 20px; border-top:1px solid var(--border-light); }
.sidebar-version { font-size:11px; color:var(--text-muted); text-align:center; }

/* Main Content */
.main-content { margin-left:250px; min-height:100vh; display:flex; flex-direction:column; }
.navbar {
  display:flex; justify-content:space-between; align-items:center;
  padding:16px 30px;
  background:rgba(7,13,26,0.85);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border-light);
  position:sticky; top:0; z-index:5;
}
.navbar-left { display:flex; align-items:center; gap:15px; }
.mobile-toggle { display:none; background:none; border:none; color:var(--text-secondary); font-size:20px; cursor:pointer; padding:5px; }
.page-title { font-size:20px; font-weight:600; background:linear-gradient(135deg,var(--text-primary),var(--primary-light)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.page-breadcrumb { display:block; font-size:11px; color:var(--text-muted); margin-top:1px; }
.navbar-right { display:flex; align-items:center; gap:15px; }
.navbar-time { color:var(--text-secondary); font-size:13px; }
.logout-btn {
  padding:8px 16px; background:rgba(255,255,255,0.04);
  border:1px solid var(--border); border-radius:8px;
  color:var(--text-secondary); cursor:pointer; font-size:13px; font-family:var(--font);
  transition:var(--transition);
}
.logout-btn:hover { background:rgba(255,107,107,0.1); color:var(--danger); border-color:var(--danger); }

/* Content Area */
.content-area { padding:30px; flex:1; animation:contentIn 0.4s ease; }
@keyframes contentIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }
.page-section { display:none; }
.page-section.active { display:block; }

/* ============================================================
   STATS CARDS
============================================================ */
.stats-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:20px; margin-bottom:30px;
}
.stat-card {
  background:var(--bg-card); backdrop-filter:blur(10px);
  border:1px solid var(--border); border-radius:var(--radius);
  padding:24px; position:relative; overflow:hidden;
  transition:var(--transition);
}
.stat-card:hover { transform:translateY(-4px); border-color:var(--primary); box-shadow:var(--shadow-glow); }
.stat-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-light));
  opacity:0; transition:var(--transition);
}
.stat-card:hover::before { opacity:1; }
.stat-card .icon { font-size:24px; margin-bottom:10px; display:block; }
.stat-card .value { font-size:28px; font-weight:700; background:linear-gradient(135deg,var(--primary),var(--primary-light)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.stat-card .label { color:var(--text-secondary); font-size:12px; margin-top:4px; }

/* ============================================================
   CHARTS
============================================================ */
.charts-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(380px,1fr));
  gap:20px; margin-bottom:30px;
}
.chart-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:24px;
  min-height:300px; max-height:360px;
  transition:var(--transition);
}
.chart-card:hover { border-color:var(--border); box-shadow:var(--shadow-glow); }
.chart-card h3 { font-size:14px; font-weight:500; margin-bottom:15px; color:var(--text-secondary); display:flex; align-items:center; gap:8px; }
.chart-card canvas { max-height:260px !important; width:100% !important; }

/* ============================================================
   MONITOR CARDS
============================================================ */
.monitor-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
  gap:20px; margin-bottom:30px;
}
.monitor-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:24px;
  transition:var(--transition);
}
.monitor-card:hover { border-color:var(--border); box-shadow:var(--shadow-glow); }
.monitor-card h3 { font-size:14px; font-weight:500; margin-bottom:15px; color:var(--text-secondary); display:flex; align-items:center; gap:8px; }

/* Progress bars */
.progress-item { margin-bottom:16px; }
.progress-item .label { display:flex; justify-content:space-between; font-size:12px; color:var(--text-secondary); margin-bottom:5px; }
.progress-item .label .val { color:var(--primary); font-weight:600; }
.progress-bar { height:6px; background:rgba(255,255,255,0.04); border-radius:6px; overflow:hidden; }
.progress-bar .fill { height:100%; border-radius:6px; background:linear-gradient(90deg,var(--primary),var(--primary-light)); transition:width 1s ease; position:relative; overflow:hidden; }
.progress-bar .fill::after { content:''; position:absolute; top:0; left:-100%; right:0; bottom:0; background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent); animation:shimmer 2.5s infinite; }
@keyframes shimmer { 0%{transform:translateX(0)} 100%{transform:translateX(200%)} }

/* Info rows */
.info-row { display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px solid rgba(255,255,255,0.03); font-size:13px; }
.info-row:last-child { border-bottom:none; }
.info-row .val { color:var(--primary); }
.info-row .val.danger { color:var(--danger); }
.info-row .val.warning { color:var(--warning); }

/* System cards */
.systems-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px; margin-bottom:30px;
}
.system-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:24px; cursor:pointer;
  transition:var(--transition);
}
.system-card:hover { transform:translateY(-4px); border-color:var(--primary); box-shadow:var(--shadow-glow); }
.system-card .header { display:flex; align-items:center; gap:12px; margin-bottom:12px; }
.system-card .header .emoji { font-size:26px; }
.system-card .header .info h4 { font-size:14px; font-weight:600; }
.system-card .header .info .badge { display:inline-block; padding:2px 10px; border-radius:20px; font-size:11px; background:rgba(0,201,167,0.12); color:var(--primary); margin-top:3px; }
.system-card .stats { display:flex; gap:24px; }
.system-card .stats .num { font-size:18px; font-weight:700; color:var(--primary); }
.system-card .stats .lbl { font-size:11px; color:var(--text-secondary); }
.system-card .meta-tags { display:flex; gap:8px; margin-top:12px; flex-wrap:wrap; }
.system-card .meta-tags span { font-size:11px; color:var(--text-muted); }

/* ============================================================
   TABLES
============================================================ */
.cron-table { width:100%; border-collapse:collapse; }
.cron-table th { text-align:left; padding:12px 15px; color:var(--text-secondary); font-size:12px; font-weight:500; border-bottom:1px solid var(--border); text-transform:uppercase; letter-spacing:1px; }
.cron-table td { padding:12px 15px; font-size:13px; border-bottom:1px solid rgba(255,255,255,0.03); }
.cron-table tr:hover td { background:var(--primary-bg); }
.cron-table code { font-family:'Menlo','Consolas',monospace; font-size:12px; }
.cron-badge { display:inline-block; padding:2px 8px; border-radius:12px; font-size:11px; }
.cron-badge.active { background:rgba(0,201,167,0.12); color:var(--primary); }

/* Task list */
.task-list { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:15px; }
.task-item {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:16px; cursor:pointer;
  transition:var(--transition);
}
.task-item:hover { border-color:var(--primary); transform:translateY(-2px); box-shadow:var(--shadow-glow); }
.task-item h4 { font-size:14px; margin-bottom:4px; }
.task-item .meta { font-size:12px; color:var(--text-secondary); }
.back-btn {
  padding:8px 16px; background:rgba(255,255,255,0.04);
  border:1px solid var(--border); border-radius:8px;
  color:var(--text-secondary); cursor:pointer; font-size:13px; font-family:var(--font);
  margin-bottom:15px; display:inline-block; transition:var(--transition);
}
.back-btn:hover { border-color:var(--primary); color:var(--primary); }
.task-detail pre, .monitor-card pre {
  background:rgba(0,0,0,0.3); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:20px;
  overflow-x:auto; font-size:13px; line-height:1.6;
  color:var(--text-primary); max-height:70vh; overflow-y:auto;
  font-family:'Menlo','Consolas',monospace;
}

/* AI Status */
.ai-hero { text-align:center; padding:40px; }
.ai-hero .avatar { font-size:72px; margin-bottom:10px; display:block; animation:float 3s ease-in-out infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.ai-hero h2 { font-size:22px; font-weight:700; background:linear-gradient(135deg,var(--primary),var(--primary-light)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; }
.ai-hero p { color:var(--text-secondary); font-size:13px; margin-top:5px; }
.ai-hero .skill-count { display:inline-block; margin-top:12px; padding:6px 20px; background:rgba(0,201,167,0.1); border:1px solid var(--border); border-radius:30px; color:var(--primary); font-weight:600; font-size:14px; }
.model-box { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius); padding:24px; margin-bottom:30px; }
.model-box h3 { font-size:14px; font-weight:500; margin-bottom:15px; color:var(--text-secondary); }

/* ============================================================
   RESPONSIVE - TABLET (≤1024px)
============================================================ */
@media (max-width:1024px) {
  .sidebar { width:220px; }
  .main-content { margin-left:220px; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .charts-grid { grid-template-columns:1fr; }
  .content-area { padding:20px; }
}

/* ============================================================
   RESPONSIVE - MOBILE (≤768px) — APP风格底部导航+大卡片
============================================================ */
@media (max-width:768px) {
  /* 侧边栏改为顶部下拉式菜单 */
  .sidebar {
    position:fixed; top:0; left:0; right:0; bottom:auto;
    width:100%; height:auto; min-height:auto;
    transform:translateY(-100%); z-index:100;
    transition:transform 0.3s cubic-bezier(0.4,0,0.2,1);
    flex-direction:column;
    background:rgba(7,13,26,0.97);
    backdrop-filter:blur(20px);
    border-right:none;
    border-bottom:1px solid var(--border);
    padding:0;
    max-height:85vh;
    overflow-y:auto;
  }
  .sidebar.open { transform:translateY(0); }
  .sidebar-header { display:flex; padding:12px 16px; border-bottom:1px solid var(--border-light); }
  .sidebar-footer { display:block; padding:10px; }
  .sidebar-logo { display:flex; align-items:center; gap:10px; }
  .brand-name { font-size:15px; }
  .brand-desc { font-size:10px; }
  
  /* 导航菜单 */
  .sidebar-nav {
    display:flex;
    flex-direction:column;
    gap:0;
    padding:4px 0;
  }
  .nav-item {
    padding:14px 20px;
    justify-content:flex-start;
    flex-direction:row;
    align-items:center;
    border-left:3px solid transparent;
    font-size:15px;
    gap:12px;
    min-height:48px;
  }
  .nav-item.active {
    border-left-color:var(--primary);
    border-top:none;
    background:rgba(0,201,167,0.08);
  }
  .nav-item .nav-icon { font-size:18px; width:24px; }
  .nav-item .nav-arrow { display:inline; }
  .sub-nav { display:block; padding-left:0; }
  .sub-nav .nav-item { padding:12px 20px 12px 48px; font-size:14px; }
  .has-sub { display:flex !important; }
  
  .sidebar-overlay.show { display:block; }
  
  .main-content { margin-left:0; padding-bottom:0; }
  
  /* 导航栏简化 */
  .navbar { padding:10px 14px; padding-top:calc(10px + env(safe-area-inset-top,0px)); }
  .mobile-toggle { display:block; font-size:22px; }
  .content-area { padding:14px; padding-bottom:80px; }
  .page-title { font-size:17px; }
  .page-breadcrumb { font-size:10px; }
  .navbar-time { display:block; font-size:11px; }
  .logout-btn { padding:5px 10px; font-size:11px; }
  .logout-btn i { margin-right:0; }
  .logout-btn span { display:none; }
  
  /* 统计卡片更大更易触 */
  .stats-grid { grid-template-columns:1fr 1fr; gap:10px; margin-bottom:20px; }
  .stat-card { padding:18px; }
  .stat-card .value { font-size:24px; }
  .stat-card .label { font-size:12px; }
  .stat-card .icon { font-size:22px; margin-bottom:8px; }
  
  /* 图表 */
  .charts-grid { grid-template-columns:1fr; gap:12px; }
  .chart-card { min-height:200px; max-height:260px; padding:16px; border-radius:14px; }
  .chart-card canvas { max-height:200px !important; width:100% !important; }
  .chart-card h3 { font-size:13px; }
  
  /* 监控卡片全宽 */
  .monitor-grid { grid-template-columns:1fr; gap:12px; }
  .monitor-card { padding:16px; border-radius:14px; }
  .monitor-card h3 { font-size:13px; }
  .progress-item { margin-bottom:14px; }
  .progress-item .label { font-size:12px; }
  .info-row { padding:8px 0; font-size:13px; }
  
  /* 系统卡片全宽大图 */
  .systems-grid { grid-template-columns:1fr; gap:12px; }
  .system-card { padding:20px; border-radius:14px; min-height:70px; }
  .system-card .header .emoji { font-size:30px; }
  .system-card .header .info h4 { font-size:15px; }
  .system-card .stats .num { font-size:20px; }
  .system-card .stats .lbl { font-size:12px; }
  .system-card .meta-tags span { font-size:12px; }
  
  /* 任务列表大卡片 */
  .task-list { grid-template-columns:1fr; gap:12px; }
  .task-item { padding:18px; border-radius:14px; }
  .task-item h4 { font-size:15px; }
  .task-item .meta { font-size:13px; }
  
  /* 表格横向滚动 */
  .cron-table { display:block; overflow-x:auto; font-size:12px; }
  .cron-table th, .cron-table td { padding:10px 12px; }
  
  /* 详情页 */
  .task-detail pre, .monitor-card pre { font-size:13px; padding:16px; line-height:1.7; }
  .back-btn { padding:10px 18px; font-size:13px; }
  
  /* 登录页 */
  .login-box { padding:30px 20px; border-radius:20px; }
  .login-logo h1 { font-size:22px; }
  .logo-icon { font-size:40px; }
  .login-box input { padding:16px; font-size:16px; }
  .login-btn { padding:16px; font-size:16px; }
  
  /* 开屏 */
  .splash-title { font-size:28px; }
  .splash-icon { font-size:44px; }
  .splash-logo-wrap { width:100px; height:100px; }
  
  /* AI状态页面 */
  .ai-hero { padding:24px; }
  .ai-hero .avatar { font-size:56px; }
  .detail-grid { grid-template-columns:1fr; }
}

/* ============================================================
   RESPONSIVE - SMALL MOBILE (≤480px)
============================================================ */
@media (max-width:480px) {
  .sidebar-nav { grid-template-columns:repeat(4,1fr); }
  .nav-item { font-size:9px; padding:4px 2px; min-height:42px; }
  .nav-item .nav-icon { font-size:16px; }
  .main-content { padding-bottom:64px; }
  .content-area { padding:10px; padding-bottom:70px; }
  .stats-grid { grid-template-columns:1fr 1fr; gap:8px; }
  .stat-card { padding:14px; }
  .stat-card .value { font-size:20px; }
  .stat-card .icon { font-size:18px; }
  .login-box { padding:24px 16px; }
  .login-logo h1 { font-size:20px; }
  .navbar-right { gap:6px; }
  .logout-btn { padding:4px 8px; font-size:11px; }
  .splash-title { font-size:24px; }
  .splash-logo-wrap { width:80px; height:80px; }
  .splash-icon { font-size:34px; }
  .navbar-time { font-size:10px; }
  .page-title { font-size:15px; }
}