/*
 * REQ-USR-004 登录页 scoped 样式。
 * 语义色（按钮/文字/边框/背景/错误）一律 var(--color-*)；
 * 主视觉深蓝渐变 / 网格透视为登录页局部装饰（D7），不挪用语义 token、不新增全局 token。
 */

.wrap {
  position: absolute;
  inset: 0;
  background: var(--color-bg-base);
  display: flex;
  flex-direction: column;
}

/* 品牌头 */
.head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 36px;
  background: var(--color-bg-base);
}

.logo {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brandName {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-primary);
}

.brandSub {
  color: var(--color-text);
  font-size: 14px;
  margin-left: 6px;
}

/* 主视觉（深蓝装饰，D7 scoped，不使用语义 token） */
.hero {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: radial-gradient(
    ellipse at center,
    #1a4ea0 0%,
    #0a1d44 60%,
    #050d20 100%
  );
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(80, 160, 255, 0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 160, 255, 0.18) 1px, transparent 1px);
  background-size: 80px 80px;
  transform: perspective(800px) rotateX(55deg) translateY(20%);
  transform-origin: center;
  opacity: 0.55;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
      ellipse 800px 300px at 50% 50%,
      rgba(140, 200, 255, 0.35),
      transparent 60%
    ),
    radial-gradient(circle 200px at 30% 40%, rgba(255, 255, 255, 0.15), transparent 70%),
    radial-gradient(circle 160px at 70% 60%, rgba(255, 255, 255, 0.12), transparent 70%);
}

.heroText {
  position: absolute;
  left: 8%;
  top: 35%;
  color: #fff;
  z-index: 2;
}

.heroEn {
  font-size: 30px;
  font-weight: 300;
  letter-spacing: 1px;
  color: #cfe1ff;
  margin-bottom: 6px;
}

.heroZh {
  font-size: 54px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 4px;
  margin-bottom: 4px;
}

.heroErp {
  font-size: 90px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 8px;
  line-height: 0.9;
}

/* 右侧浮层登录卡 */
.card {
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-form-bg-edit);
  width: 380px;
  padding: 36px 32px;
  border-radius: 2px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  z-index: 3;
}

.cardTitle {
  margin: 0 0 22px;
  font-size: 18px;
  color: var(--color-text);
  font-weight: 500;
}

.submitBtn {
  letter-spacing: 8px;
}

.emptyHint {
  margin-top: -6px;
  margin-bottom: 12px;
  color: var(--color-text-secondary);
  font-size: 12px;
}

.retryBox {
  margin-top: -6px;
  margin-bottom: 12px;
  color: var(--color-error);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 页脚版权 */
.foot {
  background: var(--color-bg-base);
  text-align: center;
  padding: 14px 8px;
  color: var(--color-text-secondary);
  font-size: 12px;
  border-top: 1px solid var(--color-border);
}

.footIcp {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
}

/* 响应式回流：窄视口卡片居中（D4 默认行为） */
@media (max-width: 768px) {
  .card {
    position: static;
    transform: none;
    margin: 24px auto;
    width: calc(100% - 48px);
    max-width: 380px;
  }
  .heroText {
    position: static;
    padding: 24px 8%;
  }
}