:root {
  --header-height: 72px;
  --bg-root: #050812;
  --bg-card: #0A0F1E;
  --bg-card-hover: #0E1529;
  --bg-elevated: #111827;
  --brand-cyan: #06B6D4;
  --brand-blue: #3B82F6;
  --brand-purple: #8B5CF6;
  --brand-green: #10B981;
  --brand-amber: #F59E0B;
  --brand-rose: #F43F5E;
  --text-1: #F1F5F9;
  --text-2: #94A3B8;
  --text-3: #64748B;
  --border-subtle: rgba(59,130,246,0.10);
  --border-glow: rgba(59,130,246,0.25);
  --primary: #3B82F6;
  --secondary: #8B5CF6;
  --text-primary: var(--text-1);
  --text-secondary: var(--text-2);
  --text-muted: var(--text-3);
  --bg-secondary: var(--bg-card);
  --bg-glass: rgba(10,15,30,0.7);
  --border-color: rgba(59,130,246,0.15);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.35);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  background:var(--bg-root);
  color:var(--text-2);
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 0%, rgba(59,130,246,0.04), transparent),
    radial-gradient(ellipse 50% 40% at 80% 30%, rgba(139,92,246,0.03), transparent),
    radial-gradient(ellipse 40% 35% at 50% 100%, rgba(6,182,212,0.03), transparent);
}

/* ===================================================== */
/* LAYOUT CONTAINER */
/* ===================================================== */
#site-header,#header-app,#footer-app,.dash-wrap{position:relative;z-index:auto}
.dash-wrap{max-width:1340px;margin:0 auto;padding:0 28px 60px}
body.dash-body{padding-top:var(--header-height,72px)}
body.dash-body #site-header{position:fixed;left:0;right:0;top:0;z-index:1000}

/* ===================================================== */
/* TOP BAR — User greeting + quick actions */
/* ===================================================== */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:26px 30px;margin-bottom:28px;
  background:var(--bg-card);
  border:1px solid var(--border-subtle);border-radius:18px;
  flex-wrap:wrap;
}
.topbar-user{display:flex;align-items:center;gap:16px}
.topbar-avatar{
  width:50px;height:50px;border-radius:14px;
  background:linear-gradient(135deg, var(--brand-blue), var(--brand-purple));
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:800;color:#fff;flex-shrink:0;
  box-shadow:0 8px 28px rgba(59,130,246,0.28);
}
.topbar-info h2{font-size:20px;font-weight:800;color:var(--text-1);margin-bottom:3px}
.topbar-info .plan-tag{
  display:inline-block;padding:3px 12px;border-radius:20px;
  font-size:11px;font-weight:700;letter-spacing:0.3px;
}
.plan-free{background:rgba(100,116,139,0.12);color:var(--text-3);border:1px solid rgba(100,116,139,0.2)}
.plan-vip{background:rgba(59,130,246,0.10);color:var(--brand-blue);border:1px solid rgba(59,130,246,0.2)}
.plan-svip{background:rgba(245,158,11,0.10);color:var(--brand-amber);border:1px solid rgba(245,158,11,0.2)}
.topbar-expire{font-size:12px;color:var(--text-3);margin-top:2px}
.topbar-expire.warn{color:var(--brand-rose);font-weight:600}
.topbar-actions{display:flex;gap:10px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 22px;font-size:13px;font-weight:700;
  border:none;border-radius:10px;cursor:pointer;
  transition:all .25s ease;text-decoration:none;
}
.btn-pri{background:rgba(59,130,246,0.12);color:var(--brand-blue);border:1px solid rgba(59,130,246,0.25)}
.btn-pri:hover{background:rgba(59,130,246,0.20);box-shadow:0 4px 20px rgba(59,130,246,0.15)}
.btn-gold{background:linear-gradient(135deg, var(--brand-amber), #ea580c);color:#1a0f00;box-shadow:0 4px 20px rgba(245,158,11,0.18)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(245,158,11,0.3)}
.btn-sm{padding:7px 16px;font-size:11px;border-radius:8px}
.btn-out{background:transparent;border:1px solid rgba(255,255,255,0.15);color:var(--text-2)}
.btn-out:hover{border-color:var(--brand-blue);color:var(--brand-blue)}
.btn-rose{background:rgba(244,63,94,0.08);color:var(--brand-rose);border:1px solid rgba(244,63,94,0.15)}

/* ===================================================== */
/* STATS ROW */
/* ===================================================== */
.stats-row{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(190px, 1fr));
  gap:16px;margin-bottom:28px;
}
.stat-cell{
  background:var(--bg-card);
  border:1px solid var(--border-subtle);border-radius:16px;
  padding:22px 24px;
  display:flex;align-items:center;gap:18px;
  transition:all .3s ease;
  position:relative;overflow:hidden;
}
.stat-cell:hover{transform:translateY(-3px);border-color:var(--border-glow);box-shadow:0 12px 36px rgba(0,0,0,0.3)}
.stat-cell::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:0 4px 4px 0;}
.stat-cell:nth-child(1)::before{background:var(--brand-cyan)}
.stat-cell:nth-child(2)::before{background:var(--brand-blue)}
.stat-cell:nth-child(3)::before{background:var(--brand-purple)}
.stat-cell:nth-child(4)::before{background:var(--brand-green)}
.stat-cell:nth-child(5)::before{background:var(--brand-amber)}
.stat-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;flex-shrink:0;
}
.stat-cell:nth-child(1) .stat-icon{background:rgba(6,182,212,0.12)}
.stat-cell:nth-child(2) .stat-icon{background:rgba(59,130,246,0.12)}
.stat-cell:nth-child(3) .stat-icon{background:rgba(139,92,246,0.12)}
.stat-cell:nth-child(4) .stat-icon{background:rgba(16,185,129,0.12)}
.stat-cell:nth-child(5) .stat-icon{background:rgba(245,158,11,0.12)}
.stat-val{font-size:28px;font-weight:900;color:var(--text-1);line-height:1.1}
.stat-label{font-size:11px;color:var(--text-3);margin-top:3px;font-weight:500;letter-spacing:0.4px}

/* ===================================================== */
/* INSTALL SECTION — Terminal style one-click install */
/* ===================================================== */
.install-section{
  display:grid;grid-template-columns:1fr 1fr;
  gap:24px;margin-bottom:36px;
  align-items:center;
}
.install-intro h3{
  font-size:24px;font-weight:800;color:var(--text-1);margin-bottom:10px;
}
.install-intro h3 span{
  background:linear-gradient(135deg, var(--brand-cyan), var(--brand-purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.install-intro p{font-size:14px;color:var(--text-3);line-height:1.7;margin-bottom:18px;max-width:440px}
.install-intro .copy-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;
  background:var(--bg-card);border:1px solid var(--border-subtle);
  border-radius:10px;color:var(--text-1);font-size:14px;
  cursor:pointer;transition:all .2s ease;font-weight:600;
}
.install-intro .copy-btn:hover{border-color:var(--border-glow);background:var(--bg-card-hover)}
.install-intro .copy-btn.copied{background:rgba(16,185,129,0.12);border-color:rgba(16,185,129,0.4);color:var(--brand-green)}
.install-term{
  background:#060A14;border:1px solid rgba(59,130,246,0.15);
  border-radius:16px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,0.4);
}
.term-top{display:flex;align-items:center;gap:8px;padding:12px 18px;background:rgba(255,255,255,0.02);border-bottom:1px solid var(--border-subtle)}
.term-dot{width:12px;height:12px;border-radius:50%}
.term-dot.r{background:#FF5F57}.term-dot.y{background:#FEBC2E}.term-dot.g{background:#28C840}
.term-label{margin-left:auto;font-size:11px;color:var(--text-3);font-family:'Fira Code',monospace}
.term-code{
  padding:20px 22px;
  font-family:'JetBrains Mono','Fira Code','Cascadia Code',monospace;
  font-size:13px;line-height:1.9;color:#A5B4FC;
  overflow-x:auto;white-space:pre;
}
.term-code .c{color:#64748B}.term-code .k{color:#60A5FA}.term-code .s{color:#34D399}.term-code .w{color:#FBBF24}

/* ===================================================== */
/* TAB BAR for modules */
/* ===================================================== */
.tab-bar{
  display:flex;gap:4px;margin-bottom:24px;
  border-bottom:1px solid var(--border-subtle);
  overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.tab-bar::-webkit-scrollbar{height:0}
.tab-btn{
  padding:11px 20px;font-size:13px;font-weight:700;
  background:none;border:none;color:var(--text-3);
  cursor:pointer;white-space:nowrap;
  border-bottom:3px solid transparent;
  transition:all .25s ease;
  display:flex;align-items:center;gap:7px;
}
.tab-btn:hover{color:var(--text-2)}
.tab-btn.active{color:var(--brand-blue);border-bottom-color:var(--brand-blue)}
.tab-btn .tab-count{
  display:inline-block;padding:1px 7px;font-size:10px;font-weight:800;
  border-radius:10px;background:rgba(100,116,139,0.12);color:var(--text-3);
}
.tab-btn.active .tab-count{background:rgba(59,130,246,0.15);color:var(--brand-blue)}

/* ===================================================== */
/* MODULE GRID */
/* ===================================================== */
.module-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:14px;
}
.cat-head{
  grid-column:1/-1;
  display:flex;align-items:center;gap:12px;
  margin:28px 0 4px;
}
.cat-head:first-child{margin-top:0}
.cat-head .cat-icon{font-size:20px;width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(59,130,246,0.1)}
.cat-head h4{font-size:16px;font-weight:800;color:var(--text-1)}
.cat-head .cat-line{flex:1;height:1px;background:var(--border-subtle)}
.cat-head .cat-num{font-size:12px;color:var(--text-3);white-space:nowrap}

.module-card{
  position:relative;
  background:var(--bg-card);
  border:1px solid var(--border-subtle);border-radius:14px;
  padding:20px 18px 18px;
  cursor:pointer;
  transition:all .3s ease;
  text-decoration:none;color:inherit;display:block;
  overflow:hidden;
}
.module-card:hover{
  background:var(--bg-card-hover);
  border-color:var(--border-glow);
  transform:translateY(-4px);
  box-shadow:0 14px 40px rgba(0,0,0,0.45);
}
.module-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:100%;
  background:linear-gradient(180deg, var(--accent-color, transparent) 0%, transparent 100%);
  opacity:0;transition:opacity .3s ease;
}
.module-card .mod-icon{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:12px;
  transition:transform .3s ease;
}
.module-card:hover .mod-icon{transform:scale(1.1)}
.module-card h5{font-size:14px;font-weight:800;color:var(--text-1);margin-bottom:5px}
.module-card .mod-desc{font-size:11px;color:var(--text-3);line-height:1.5;margin-bottom:10px}
.module-card .mod-meta{display:flex;gap:6px;flex-wrap:wrap}
.module-card .mod-tag{
  font-size:10px;padding:2px 8px;border-radius:50px;font-weight:700;letter-spacing:0.3px;
}
.tag-cyan{background:rgba(6,182,212,0.12);color:var(--brand-cyan)}
.tag-blue{background:rgba(59,130,246,0.12);color:var(--brand-blue)}
.tag-purple{background:rgba(139,92,246,0.12);color:var(--brand-purple)}
.tag-green{background:rgba(16,185,129,0.12);color:var(--brand-green)}
.tag-amber{background:rgba(245,158,11,0.12);color:var(--brand-amber)}
.tag-rose{background:rgba(244,63,94,0.12);color:var(--brand-rose)}

.icon-bg-cyan{background:rgba(6,182,212,0.12);color:var(--brand-cyan)}
.icon-bg-blue{background:rgba(59,130,246,0.12);color:var(--brand-blue)}
.icon-bg-purple{background:rgba(139,92,246,0.12);color:var(--brand-purple)}
.icon-bg-green{background:rgba(16,185,129,0.12);color:var(--brand-green)}
.icon-bg-amber{background:rgba(245,158,11,0.12);color:var(--brand-amber)}
.icon-bg-rose{background:rgba(244,63,94,0.12);color:var(--brand-rose)}

.svip-badge{
  position:absolute;top:10px;right:10px;font-size:10px;font-weight:800;
  padding:2px 8px;border-radius:4px;
  background:linear-gradient(135deg, #f59e0b, #ef4444);
  color:#fff;letter-spacing:0.4px;z-index:1;
}

/* ===================================================== */
/* TICKETS & NOTICES */
/* ===================================================== */
.sub-section{margin-top:36px}
.sub-title{
  font-size:18px;font-weight:800;color:var(--text-1);margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.sub-title::after{content:'';flex:1;height:1px;background:var(--border-subtle)}
.list-card{
  background:var(--bg-card);border:1px solid var(--border-subtle);
  border-radius:14px;padding:18px 22px;margin-bottom:8px;
  transition:all .2s ease;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.list-card:hover{background:var(--bg-card-hover);border-color:var(--border-glow)}
.list-card.unread{border-left:4px solid var(--brand-blue)}
.list-card .lc-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:3px}
.list-card .lc-info{font-size:12px;color:var(--text-3)}
.list-card .lc-time{font-size:11px;color:var(--text-3);white-space:nowrap;flex-shrink:0}

/* Tab panels */
.dash-tab{display:none}.dash-tab.active{display:block}

/* Badge variants */
.badge--active{background:rgba(16,185,129,0.08);color:var(--brand-green);border:1px solid rgba(16,185,129,0.2)}
.badge--expired{background:rgba(244,63,94,0.08);color:var(--brand-rose);border:1px solid rgba(244,63,94,0.15)}
.badge--pending{background:rgba(100,116,139,0.08);color:var(--text-3);border:1px solid rgba(100,116,139,0.15)}

.badge{
  display:inline-block;padding:3px 10px;font-size:10px;font-weight:700;border-radius:10px;
}
.badge-open{background:rgba(245,158,11,0.1);color:var(--brand-amber);border:1px solid rgba(245,158,11,0.2)}
.badge-done{background:rgba(16,185,129,0.1);color:var(--brand-green);border:1px solid rgba(16,185,129,0.2)}

.empty-box{
  text-align:center;padding:60px 20px;color:var(--text-3);
  background:var(--bg-card);border:1px dashed var(--border-subtle);border-radius:16px;
}
.empty-box .em-icon{font-size:48px;margin-bottom:12px}

/* Form */
.form-card{
  background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:16px;
  padding:28px 30px;max-width:700px;margin-top:16px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-full{grid-column:1/-1}
.form-row input,.form-row select,.form-row textarea{
  width:100%;padding:12px 16px;
  background:rgba(5,8,18,0.6);border:1px solid var(--border-subtle);
  border-radius:10px;color:var(--text-1);font-size:14px;
  font-family:inherit;outline:none;
  transition:border .2s ease;
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:rgba(59,130,246,0.4);box-shadow:0 0 0 3px rgba(59,130,246,0.06)
}
.form-row textarea{min-height:130px;resize:vertical}

/* Expire popup — 居中图标风格 */
.exp-popup{
  display:none;position:fixed;inset:0;z-index:9999;
  background:rgba(5,8,18,.65);backdrop-filter:blur(6px);
  align-items:center;justify-content:center;padding:20px;
}
.exp-popup.active{display:flex}
.exp-popup__card{
  background:var(--bg-card);border:1px solid rgba(255,255,255,.06);
  border-radius:22px;padding:32px 28px;width:100%;max-width:420px;
  text-align:center;
  box-shadow:0 24px 64px rgba(0,0,0,.45);
  animation:popupSlideUp .35s cubic-bezier(.22,.61,.36,1);
  position:relative;
}
.exp-popup__icon{
  width:74px;height:74px;margin:0 auto 20px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#f59e0b;background:rgba(245,158,11,.08);
  box-shadow:0 0 0 8px rgba(245,158,11,.15);
  animation:popupIconBounce .5s cubic-bezier(.22,.61,.36,1) .1s both;
}
.exp-popup__icon svg{width:48px;height:48px;display:block}
.ep-close{
  position:absolute;top:14px;right:16px;
  background:none;border:none;color:var(--text-3);font-size:22px;cursor:pointer;
  width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.ep-close:hover{background:rgba(255,255,255,.08);color:var(--text-1)}
.ep-title{font-size:1.2rem;font-weight:800;color:var(--brand-amber);margin:0 0 8px}
.ep-desc{font-size:.9rem;color:var(--text-2);line-height:1.6;margin-bottom:18px}
.ep-coupon{
  padding:14px 16px;background:rgba(245,158,11,.06);
  border:1px dashed rgba(245,158,11,.2);border-radius:10px;
  font-family:'Fira Code',monospace;font-size:13px;color:var(--brand-amber);
  text-align:center;margin-bottom:16px;
}

/* ===================================================== */
/* RESPONSIVE */
/* ===================================================== */
@media (max-width:1200px){
  .module-grid{grid-template-columns:repeat(3,1fr)}
  .install-section{grid-template-columns:1fr}
}
@media (max-width:900px){
  .module-grid{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  .dash-wrap{padding:16px 14px 40px}
  .topbar{padding:20px 18px}
  .module-grid{grid-template-columns:1fr;gap:10px}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-cell{padding:16px 18px}
  .stat-val{font-size:22px}
  .form-row{grid-template-columns:1fr}
  .exp-popup{left:12px;right:12px;width:auto;bottom:12px}
  .tab-btn{padding:10px 14px;font-size:12px}
}