/* ============ 登录页 ============ */
.login-wrap {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  position: relative;
  width: 100%;
  max-width: 410px;
  padding: 38px 34px 26px;
  border-radius: 18px;
  background: linear-gradient(165deg, rgba(16, 28, 52, 0.92), rgba(9, 16, 32, 0.94));
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
  backdrop-filter: blur(14px);
  overflow: hidden;
  animation: fadeUp 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.login-card::before {
  content: "";
  position: absolute;
  top: -1px; left: 12%;
  width: 76%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  filter: blur(0.4px);
}

/* 扫描线装饰 */
.scan-line {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 120px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.10), transparent);
  pointer-events: none;
}

.brand { text-align: center; margin-bottom: 26px; }

.brand-logo {
  width: 60px; height: 60px;
  margin: 0 auto 14px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 30% 25%, rgba(34, 211, 238, 0.28), rgba(139, 92, 246, 0.18) 60%, transparent);
  border: 1px solid rgba(120, 200, 255, 0.28);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.28);
  animation: pulseGlow 3.2s ease-in-out infinite;
}

.brand h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 650;
  letter-spacing: 1.5px;
  background: linear-gradient(90deg, #e6f6ff, #9fd8ff 45%, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-sub {
  margin: 7px 0 0;
  font-size: 10.5px;
  letter-spacing: 2.2px;
  color: var(--text-mute);
  font-family: var(--mono);
}

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 7px;
  letter-spacing: 0.5px;
}

.field-box { position: relative; display: flex; align-items: center; }
.field-box .fi {
  position: absolute;
  left: 12px;
  color: var(--text-mute);
  pointer-events: none;
  transition: color 0.2s;
}
.field-box .input { padding-left: 36px; padding-right: 40px; }
.field-box:focus-within .fi { color: var(--accent); }

.eye {
  position: absolute;
  right: 8px;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-mute);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.18s;
}
.eye:hover { color: var(--accent); background: rgba(34, 211, 238, 0.1); }

.err {
  margin: 4px 0 12px;
  padding: 9px 12px;
  border-radius: 9px;
  font-size: 12.5px;
  color: #fecaca;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.35);
  display: flex;
  align-items: center;
  gap: 7px;
}
.err::before {
  content: "!";
  width: 16px; height: 16px;
  flex: 0 0 16px;
  border-radius: 50%;
  background: rgba(248, 113, 113, 0.85);
  color: #2b0b0b;
  font-size: 11px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.login-btn {
  width: 100%;
  height: 42px;
  margin-top: 6px;
  font-size: 14px;
  letter-spacing: 4px;
}

.login-btn.loading { pointer-events: none; opacity: 0.75; }
.login-btn.loading #btnText::after {
  content: "";
  display: inline-block;
  width: 12px; height: 12px;
  margin-left: 8px;
  border: 2px solid rgba(4, 18, 31, 0.35);
  border-top-color: #04121f;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: -1px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.login-card.shake { animation: shake 0.4s ease; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(7px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(4px); }
}

.login-foot {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px dashed rgba(120, 170, 230, 0.14);
  text-align: center;
  font-size: 11.5px;
  color: var(--text-mute);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}
.login-foot .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 8px var(--ok);
  animation: pulseGlow 2s ease-in-out infinite;
}

@media (max-width: 480px) {
  .login-card { padding: 30px 22px 20px; }
  .brand h1 { font-size: 18px; }
}