/* ==========================================================
   登录页 · 单列居中玻璃卡片
   ========================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s5);
  /* 与主界面同一套底色语言，进去/退出不跳风格 */
  background:
    radial-gradient(900px 480px at 15% 0%, #E4E9FF 0%, transparent 60%),
    radial-gradient(760px 420px at 100% 100%, #E0F2FE 0%, transparent 58%),
    linear-gradient(160deg, #F8FAFF 0%, #EEF3FA 100%);
  background-attachment: fixed;
}

.login-box {
  width: 100%;
  max-width: 384px;
  background: var(--surface-glass-solid);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  padding: var(--s6) var(--s6) var(--s5);
  box-shadow: var(--shadow-lg);
  animation: login-in 420ms cubic-bezier(.16, 1, .3, 1);
}
@keyframes login-in {
  from { opacity: 0; transform: translateY(16px) scale(.98); }
  to   { opacity: 1; transform: none; }
}

.login-head { margin-bottom: var(--s5); }

.login-mark {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: var(--s5);
}
/* 品牌渐变方块，与顶栏呼应 */
.login-mark__glyph {
  width: 38px; height: 38px;
  flex: none;
  border-radius: 11px;
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 55%, #7C3AED 100%);
  box-shadow: 0 6px 16px rgba(79, 70, 229, .34);
  position: relative;
}
.login-mark__glyph::after {
  content: "内";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 19px;
  font-weight: 800;
}
.login-mark__text {
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -.2px;
  color: var(--ink);
}

.login-title {
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.4px;
  margin-bottom: 6px;
}
.login-sub { font-size: var(--fs-sm); color: var(--ink3); line-height: 1.6; }

.login-submit { width: 100%; margin-top: var(--s3); padding: 11px; font-size: 14px; }

.login-msg {
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: var(--s4);
  display: none;
}
.login-msg--err {
  background: var(--alert-soft);
  color: var(--alert-dim);
  border: 1px solid #FECACA;
}
.login-msg--ok {
  background: var(--primary-soft);
  color: var(--primary-dim);
  border: 1px solid #A7F3D0;
}
.login-msg--show { display: block; animation: msg-in 200ms ease-out; }
@keyframes msg-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}

.login-foot {
  margin-top: var(--s5);
  padding-top: var(--s4);
  border-top: 1px solid var(--line-soft);
  font-size: var(--fs-xs);
  color: var(--ink3);
  display: flex;
  justify-content: space-between;
  gap: var(--s3);
}