:root {
  --bg: #eef4f8;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.94);
  --border: rgba(40, 100, 140, 0.15);
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --accent: #06b6d4;
  --cta: #16a34a;
  --text: #1e293b;
  --muted: #64748b;
  --danger: #ef4444;
  --radius-lg: 1.5rem;
  --radius-md: 0.9rem;
  --shadow: 0 1.2rem 3rem rgba(30, 64, 120, 0.12);
  --font: "Avenir Next", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-strong); }

/* ===== 登录/注册 认证页 ===== */
body.auth-page {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(160deg, #eaf3fb 0%, #eef4f8 45%, #e6eef6 100%);
}
body.auth-page .bg {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(circle at 12% 14%, rgba(37, 99, 235, 0.10), transparent 22%),
    radial-gradient(circle at 88% 12%, rgba(6, 182, 212, 0.10), transparent 20%),
    radial-gradient(circle at 75% 82%, rgba(22, 163, 74, 0.08), transparent 18%);
}
.login {
  position: relative;
  top: 120px;
  width: min(calc(100% - 2rem), 26rem);
  margin: 0 auto 3rem;
  padding: 2rem 1.8rem 1.7rem;
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.login::before {
  content: ""; position: absolute; left: 1.8rem; right: 1.8rem; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cta));
  border-radius: 0 0 3px 3px;
}
.login-kicker {
  display: inline-flex; padding: 0.4rem 0.9rem; border-radius: 999px;
  background: rgba(37, 99, 235, 0.10); border: 1px solid rgba(37, 99, 235, 0.14);
  color: var(--primary); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em;
}
.login-title {
  margin: 0.9rem 0 0.3rem; font-size: 1.9rem; font-weight: 700; color: var(--text);
}
.login-subtitle { margin: 0 0 1.4rem; color: var(--muted); font-size: 0.9rem; }

.auth-form { width: 100%; }
.form-item { position: relative; margin-bottom: 0.9rem; }
.form-item .login-icon {
  position: absolute; left: 0.15rem; top: 50%; transform: translateY(-50%);
  font-size: 1rem; width: 2.4rem; text-align: center; pointer-events: none;
}
.form-item input {
  width: 100%; height: 2.9rem; padding: 0 0.9rem 0 2.6rem;
  border-radius: var(--radius-md); border: 1px solid var(--border);
  background: #fff; color: var(--text); font-size: 0.95rem;
  transition: border-color .2s, box-shadow .2s;
}
.form-item input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 0.22rem rgba(37, 99, 235, 0.14);
}
.form-label { display: block; margin-bottom: 0.4rem; font-size: 0.88rem; color: var(--muted); }

.login-links {
  display: flex; justify-content: space-between; margin: 0.2rem 0 1rem;
  font-size: 0.88rem;
}
.login-btn {
  width: 100%; height: 2.9rem; border: none; border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 1rem; font-weight: 600; letter-spacing: 0.15em; cursor: pointer;
  box-shadow: 0 0.7rem 1.6rem rgba(37, 99, 235, 0.28);
  transition: transform .15s, filter .15s;
}
.login-btn:hover { transform: translateY(-1px); filter: brightness(1.04); }
.btn-secondary {
  height: 2.9rem; padding: 0 1.4rem; border: 1px solid var(--border); border-radius: var(--radius-md);
  background: #fff; color: var(--muted); cursor: pointer;
}
.login-tip { margin-top: 0.8rem; font-size: 0.86rem; min-height: 1.2em; }
.login-tip.error { color: var(--danger); }
.login-tip.ok { color: var(--cta); }

/* ===== 主功能页 ===== */
body.user-page { min-height: 100vh; background: var(--bg); }
.user-shell { max-width: 1100px; margin: 0 auto; padding: 0 1.2rem 2rem; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 0; border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-copy { display: flex; flex-direction: column; }
.brand-kicker { font-size: 0.68rem; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase; }
.brand-title { font-size: 1.25rem; font-weight: 700; color: var(--text); }
.topbar-meta { display: flex; align-items: center; gap: 1rem; }
.vip-chip {
  display: flex; flex-direction: column; align-items: flex-end;
  padding: 0.3rem 0.8rem; border-radius: var(--radius-md);
  background: rgba(22, 163, 74, 0.10); border: 1px solid rgba(22, 163, 74, 0.2);
}
.vip-chip span { font-size: 0.68rem; color: var(--cta); }
.vip-chip strong { font-size: 0.9rem; color: var(--text); }
.topbar-actions { display: flex; gap: 0.5rem; }
.action-pill {
  padding: 0.5rem 0.9rem; border: 1px solid var(--border); border-radius: 999px;
  background: #fff; color: var(--text); font-size: 0.85rem; cursor: pointer;
}
.action-pill--accent { background: var(--primary); color: #fff; border-color: var(--primary); }
.action-pill--danger { background: #fff; color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }

.user-main { display: grid; grid-template-columns: 1fr 320px; gap: 1.5rem; margin-top: 1.5rem; }
@media (max-width: 800px) { .user-main { grid-template-columns: 1fr; } }

.module-section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.module-section-head h2 { margin: 0; font-size: 1.1rem; }
.module-section-head p { margin: 0; color: var(--muted); font-size: 0.85rem; }
.module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.module-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.2rem; box-shadow: 0 0.5rem 1.5rem rgba(30, 64, 120, 0.06);
  display: flex; flex-direction: column; gap: 0.7rem;
}
.module-card-top { display: flex; justify-content: flex-end; }
.module-status {
  padding: 0.2rem 0.6rem; border-radius: 999px; font-size: 0.72rem;
  background: rgba(22, 163, 74, 0.10); color: var(--cta);
}
.module-name { margin: 0; font-size: 1.05rem; font-weight: 600; }
.module-action {
  padding: 0.65rem; border: none; border-radius: var(--radius-md); cursor: pointer;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 0.9rem; font-weight: 600;
  transition: transform .15s, filter .15s;
}
.module-action:hover { transform: translateY(-1px); filter: brightness(1.04); }
.expire-meta { display: flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; margin: 0; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status-active { background: var(--cta); }
.status-expired { background: var(--danger); }
.status-text--active { color: var(--cta); }
.status-text--expired { color: var(--danger); }
.empty-state { grid-column: 1/-1; text-align: center; color: var(--muted); padding: 2rem; }

.notice-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.2rem; box-shadow: 0 0.5rem 1.5rem rgba(30, 64, 120, 0.06);
  align-self: start;
}
.notice-head { margin-bottom: 0.8rem; }
.section-badge {
  padding: 0.3rem 0.7rem; border-radius: 999px; font-size: 0.78rem;
  background: rgba(37, 99, 235, 0.10); color: var(--primary);
}
.notice-body p { margin: 0 0 0.6rem; font-size: 0.88rem; line-height: 1.6; }
.x-green { color: var(--cta); }
.x-red { color: var(--danger); }

/* ===== 弹窗 ===== */
.dialog-overlay {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
}
.dialog-box {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  display: flex; flex-direction: column; box-shadow: 0 2rem 4rem rgba(0,0,0,0.2);
}
.dialog-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.8rem 1.2rem; font-weight: 600; border-bottom: 1px solid var(--border);
}
.dialog-close { cursor: pointer; font-size: 1.4rem; color: var(--muted); }
.dialog-iframe { flex: 1; border: none; }

/* ===== 弹窗内页（充值/改密）===== */
body.dialog-page { background: #fff; padding: 0; }
.dialog-shell { padding: 1.6rem; }
.dialog-card { max-width: 420px; margin: 0 auto; }
.dialog-title { margin: 0.8rem 0 0.3rem; font-size: 1.3rem; }
.dialog-subtitle { margin: 0 0 1.3rem; color: var(--muted); font-size: 0.88rem; }
.dialog-actions { display: flex; gap: 0.6rem; }
.dialog-actions .login-btn { flex: 1; }