/* ============================================================
 * 登录页面视觉增强优化
 * 提升现代感、交互体验和视觉层次
 * ============================================================ */

/* ============================================================
 * 整页布局自适应优化
 * ============================================================ */

/* 全局布局：确保 100% 视口高度 */
html {
  height: 100%;
  height: 100vh;
  height: 100dvh;
}

body.login-shell-page {
  min-height: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* 背景层：固定全屏 */
.login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* 主框架：相对定位，覆盖背景 */
.login-frame {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  grid-template-columns: 100%;
}

/* 主区域：自适应高度 */
.login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 3vh, 32px) clamp(16px, 4vw, 48px);
  min-height: 0;
}

/* 中央卡片：响应式尺寸 */
.login-shell {
  width: 100%;
  max-width: min(960px, 95vw);
  margin: 0 auto;
}

/* 桌面端：双栏布局 */
@media (min-width: 861px) {
  .login-shell {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    min-height: clamp(500px, 70vh, 700px);
  }

  .login-hero {
    display: flex !important;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(32px, 4vw, 48px);
  }

  .login-form {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(32px, 4vw, 48px);
  }
}

/* 平板端：单栏布局 */
@media (max-width: 860px) and (min-width: 769px) {
  .login-shell {
    max-width: 540px;
  }

  .login-hero {
    display: none !important;
  }

  .login-form {
    padding: clamp(24px, 5vw, 40px);
  }

  .login-main {
    padding: clamp(12px, 2vh, 24px) clamp(16px, 4vw, 32px);
  }
}

/* 顶栏：响应式高度和间距 */
.login-topbar {
  padding: clamp(10px, 1.5vh, 16px) clamp(24px, 5vw, 48px);
  gap: clamp(12px, 2vw, 24px);
}

.login-topbar-brand {
  gap: clamp(8px, 1.5vw, 12px);
}

.login-topbar-name {
  font-size: clamp(13px, 1.2vw, 16px);
}

.login-topbar-sub {
  font-size: clamp(9px, 0.9vw, 11px);
}

.login-topbar-nav {
  gap: clamp(16px, 2.5vw, 28px);
}

.login-topbar-link {
  font-size: clamp(12px, 1.1vw, 14px);
}

/* 页脚：响应式布局 */
.login-footer {
  padding: clamp(10px, 1.5vh, 16px) clamp(24px, 5vw, 48px);
  font-size: clamp(10px, 0.95vw, 12px);
  gap: clamp(12px, 2vw, 20px);
}

.login-footer-copy {
  gap: clamp(4px, 0.8vw, 8px);
}

.login-footer-nav {
  gap: clamp(12px, 2vw, 20px);
}

/* 表单元素：响应式尺寸 */
.login-form-head h2 {
  font-size: clamp(20px, 2.2vw, 26px);
  margin-bottom: clamp(8px, 1vh, 12px);
}

.login-form-head p {
  font-size: clamp(12px, 1.1vw, 14px);
}

.login-cta {
  min-height: clamp(48px, 6vh, 60px);
  padding: clamp(10px, 1.5vh, 14px) clamp(12px, 2vw, 16px);
  gap: clamp(10px, 1.5vw, 14px);
}

.login-cta-icon {
  width: clamp(32px, 4vw, 40px);
  height: clamp(32px, 4vw, 40px);
}

.login-cta-title {
  font-size: clamp(14px, 1.3vw, 17px);
}

.login-cta-sub {
  font-size: clamp(11px, 1vw, 13px);
}

.login-phone-field {
  height: clamp(44px, 5.5vh, 52px);
  padding: 0 clamp(12px, 2vw, 16px);
  gap: clamp(8px, 1.5vw, 12px);
}

.login-phone-input {
  font-size: clamp(14px, 1.2vw, 16px);
}

.login-phone-submit {
  height: clamp(44px, 5.5vh, 52px);
  font-size: clamp(14px, 1.2vw, 16px);
}

.login-phone-code-btn {
  height: clamp(28px, 3.5vh, 34px);
  padding: 0 clamp(10px, 1.5vw, 14px);
  font-size: clamp(11px, 1vw, 13px);
}

.login-third-party-btn {
  height: clamp(40px, 5vh, 48px);
  padding: 0 clamp(12px, 2vw, 16px);
  font-size: clamp(12px, 1.1vw, 14px);
  gap: clamp(6px, 1vw, 10px);
}

.login-third-party-ico {
  width: clamp(16px, 2vw, 20px);
  height: clamp(16px, 2vw, 20px);
}

/* Hero 区域：响应式内容 */
.login-hero-head h2 {
  font-size: clamp(22px, 2.5vw, 30px);
  line-height: 1.3;
}

.login-hero-head p {
  font-size: clamp(12px, 1.2vw, 15px);
  margin-top: clamp(12px, 1.5vh, 18px);
}

.login-hero-list {
  gap: clamp(14px, 2vh, 20px);
  margin: clamp(20px, 3vh, 32px) 0;
}

.login-hero-item {
  gap: clamp(12px, 1.8vw, 18px);
  padding: clamp(8px, 1.2vh, 12px) 0;
}

.login-hero-item-title {
  font-size: clamp(13px, 1.3vw, 16px);
}

.login-hero-item-desc {
  font-size: clamp(11px, 1.1vw, 14px);
  margin-top: clamp(4px, 0.6vh, 8px);
}

.login-hero-trust {
  font-size: clamp(10px, 1vw, 12px);
  gap: clamp(6px, 1vw, 10px);
}

/* 分隔线：响应式间距 */
.login-divider {
  margin: clamp(16px, 2.5vh, 24px) 0;
  font-size: clamp(10px, 0.95vw, 12px);
  gap: clamp(10px, 1.5vw, 14px);
}

/* 第三方登录：响应式布局 */
.login-third-party {
  gap: clamp(10px, 1.5vw, 16px);
  margin: clamp(12px, 2vh, 18px) 0;
}

.login-third-party-label {
  font-size: clamp(10px, 0.95vw, 12px);
}

.login-third-party-list {
  gap: clamp(8px, 1.2vw, 12px);
}

/* 帮助和协议：响应式字号 */
.login-form-help {
  margin-top: clamp(16px, 2.5vh, 24px);
  font-size: clamp(11px, 1vw, 13px);
  gap: clamp(6px, 1vw, 10px);
}

.login-form-agreement {
  font-size: clamp(10px, 0.95vw, 12px);
  margin-top: clamp(8px, 1.2vh, 12px);
}

/* 大屏优化：限制最大宽度 */
@media (min-width: 1400px) {
  .login-shell {
    max-width: 1100px;
  }

  .login-main {
    padding: 40px 64px;
  }
}

/* 小屏优化：保持一行布局 */
@media (max-width: 640px) {
  .login-topbar {
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: clamp(6px, 1.5vw, 10px);
    padding: clamp(8px, 1.5vh, 12px) clamp(12px, 3vw, 16px);
    flex-wrap: nowrap !important;
  }

  .login-topbar-brand {
    flex-shrink: 0;
    min-width: 0;
  }

  .login-topbar-name {
    font-size: clamp(11px, 3vw, 14px);
  }

  .login-topbar-sub {
    font-size: clamp(8px, 2vw, 10px);
  }

  .login-topbar-nav {
    flex-shrink: 0;
    justify-content: flex-end;
    flex-wrap: nowrap !important;
    gap: clamp(6px, 1.5vw, 10px);
  }

  .login-topbar-icon-link,
  .login-topbar-lang {
    min-width: clamp(28px, 7vw, 36px);
    min-height: clamp(28px, 7vw, 36px);
    padding: clamp(4px, 1vh, 6px);
  }

  .login-topbar-icon-link i,
  .login-topbar-lang i {
    width: clamp(14px, 3.5vw, 18px);
    height: clamp(14px, 3.5vw, 18px);
  }

  .login-footer {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
  }

  .login-footer-nav {
    justify-content: center;
    flex-wrap: wrap;
  }
}

/* 极窄屏：保持一行，进一步压缩 */
@media (max-width: 380px) {
  .login-main {
    padding: 12px;
  }

  .login-form {
    padding: 20px 16px;
  }

  .login-third-party {
    display: none;
  }

  .login-footer-version,
  .login-footer-region {
    display: none;
  }

  .login-topbar {
    padding: clamp(6px, 1.2vh, 10px) clamp(10px, 2.5vw, 14px);
    gap: clamp(4px, 1vw, 8px);
  }

  .login-topbar-brand {
    gap: clamp(4px, 1vw, 8px);
  }

  .sidebar-brand-mark {
    width: clamp(18px, 4.5vw, 24px) !important;
    height: clamp(18px, 4.5vw, 24px) !important;
  }

  .login-topbar-name {
    font-size: clamp(10px, 2.8vw, 13px);
  }

  .login-topbar-sub {
    font-size: clamp(7px, 1.8vw, 9px);
  }

  .login-topbar-nav {
    gap: clamp(4px, 1vw, 8px);
  }

  .login-topbar-icon-link,
  .login-topbar-lang {
    min-width: clamp(24px, 6vw, 32px);
    min-height: clamp(24px, 6vw, 32px);
    padding: clamp(3px, 0.8vh, 5px);
  }

  .login-topbar-icon-link i,
  .login-topbar-lang i {
    width: clamp(12px, 3vw, 16px);
    height: clamp(12px, 3vw, 16px);
  }
}

/* 横屏优化：压缩纵向空间 */
@media (max-height: 700px) and (orientation: landscape) and (min-width: 769px) {
  .login-frame {
    grid-template-rows: auto 1fr auto;
  }

  .login-main {
    padding: 16px 32px;
  }

  .login-shell {
    min-height: auto;
    max-height: 85vh;
  }

  .login-hero,
  .login-form {
    padding: 24px 32px;
  }

  .login-hero-list {
    gap: 12px;
    margin: 16px 0;
  }

  .login-form-head h2 {
    font-size: 20px;
    margin-bottom: 6px;
  }

  .login-divider {
    margin: 12px 0;
  }

  .login-third-party {
    margin: 10px 0;
  }
}

/* ============================================================
 * 浏览器兼容性优化
 * ============================================================ */

/* Safari 兼容性 */
@supports (-webkit-backdrop-filter: blur(10px)) or (backdrop-filter: blur(10px)) {
  .login-topbar,
  .login-footer {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

/* Firefox 滚动条优化 */
@-moz-document url-prefix() {
  .login-main {
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.3) transparent;
  }
}

/* Edge 兼容性 */
@supports (-ms-ime-align: auto) {
  .login-shell {
    display: -ms-grid;
    -ms-grid-columns: 1.05fr 1fr;
  }
}

/* iOS Safari 特殊处理 */
@supports (-webkit-touch-callout: none) {
  body.login-shell-page {
    min-height: -webkit-fill-available;
  }

  .login-frame {
    min-height: -webkit-fill-available;
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  .login-shell {
    border: 2px solid currentColor !important;
  }

  .login-cta,
  .login-phone-field,
  .login-phone-submit,
  .login-third-party-btn {
    border-width: 2px !important;
  }
}

/* 暗色模式准备（预留） */
@media (prefers-color-scheme: dark) {
  /* 暗色模式样式可在此添加 */
}

/* ============================================================
 * 打印样式优化
 * ============================================================ */
@media print {
  .login-bg,
  .login-hero,
  .login-topbar-nav,
  .login-footer-nav,
  .login-third-party,
  .login-form-help {
    display: none !important;
  }

  .login-shell {
    box-shadow: none !important;
    border: 1px solid #000 !important;
  }

  .login-frame {
    min-height: auto;
  }

  body.login-shell-page {
    background: #fff !important;
  }
}

/* ============================================================
 * 性能优化
 * ============================================================ */

/* GPU 加速 */
.login-shell,
.login-cta,
.login-hero::after,
.login-third-party-btn,
.login-phone-submit {
  will-change: transform;
}

/* 动画完成后移除 will-change */
.login-shell:not(:hover),
.login-cta:not(:hover),
.login-third-party-btn:not(:hover),
.login-phone-submit:not(:hover) {
  will-change: auto;
}

/* 图片和图标优化 */
img, svg, i {
  -webkit-user-select: none;
  user-select: none;
  pointer-events: none;
}

/* 字体渲染优化 */
body.login-shell-page {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* 避免布局抖动 */
.login-shell,
.login-hero,
.login-form {
  contain: layout style paint;
}

/* ============================================================
 * 无障碍优化
 * ============================================================ */

/* 焦点可见性 */
*:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

/* 跳过链接（屏幕阅读器） */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: #3b82f6;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-to-content:focus {
  top: 0;
}

/* 高对比度文本 */
@media (prefers-contrast: more) {
  body.login-shell-page {
    color: #000;
  }

  .login-hero {
    background: #1e40af !important;
  }

  .login-cta-sub,
  .login-hero-item-desc,
  .login-form-agreement {
    opacity: 1 !important;
  }
}

/* 减少透明度（用户偏好） */
@media (prefers-reduced-transparency: reduce) {
  .login-topbar,
  .login-footer,
  .login-cta-icon {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  .login-hero::before,
  .login-hero::after {
    display: none !important;
  }
}

/* ============================================================
 * 响应式图片和媒体
 * ============================================================ */

/* 品牌 Logo 响应式 */
.sidebar-brand-mark {
  width: clamp(20px, 3vw, 32px);
  height: clamp(20px, 3vw, 32px);
}

/* 图标响应式 */
.login-topbar-icon-link i,
.login-topbar-lang i {
  width: clamp(14px, 1.5vw, 18px);
  height: clamp(14px, 1.5vw, 18px);
}

.login-form-help-link i {
  width: clamp(12px, 1.2vw, 16px);
  height: clamp(12px, 1.2vw, 16px);
}

/* ============================================================
 * 加载状态和骨架屏
 * ============================================================ */

/* 加载动画 */
@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

.loading-skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

/* 表单提交加载状态 */
.login-phone-submit.is-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.login-phone-submit.is-loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin: -8px 0 0 -8px;
  border: 2px solid #fff;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
 * 错误状态样式
 * ============================================================ */

.login-phone-field.has-error {
  border-color: #dc2626 !important;
  background: #fef2f2 !important;
}

.login-phone-field.has-error:focus-within {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1) !important;
}

.error-message {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 12px;
  color: #dc2626;
}

.error-message i {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* 成功状态 */
.login-phone-field.has-success {
  border-color: #16a34a !important;
  background: #f0fdf4 !important;
}

.login-phone-field.has-success:focus-within {
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1) !important;
}

/* ============================================================
 * 视觉增强样式
 * ============================================================ */

/* 中央卡片：更精致的阴影和悬浮效果 */
.login-shell {
  background: #ffffff !important;
  border-color: rgba(226, 232, 240, 0.75) !important;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.8) inset,
    0 32px 64px -24px rgba(30, 41, 59, 0.12),
    0 12px 24px -12px rgba(15, 23, 42, 0.08),
    0 0 0 1px rgba(15, 23, 42, 0.02) !important;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.login-shell:hover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 40px 80px -24px rgba(30, 41, 59, 0.15),
    0 16px 32px -12px rgba(15, 23, 42, 0.1),
    0 0 0 1px rgba(15, 23, 42, 0.03) !important;
  transform: translateY(-2px);
}

/* 左侧 Hero：更现代的渐变和动态光效 */
.login-hero {
  background: linear-gradient(160deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%) !important;
  position: relative;
  overflow: hidden;
}

.login-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 10%, rgba(255, 255, 255, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.login-hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: translate(0, 0) scale(1); opacity: 0.6; }
  100% { transform: translate(-30px, 20px) scale(1.1); opacity: 0.8; }
}

/* 主 CTA：精致的玻璃态和过渡效果 */
.login-cta {
  border-color: transparent !important;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 8px 16px -8px rgba(37, 99, 235, 0.3),
    0 0 0 1px rgba(37, 99, 235, 0.1) !important;
  position: relative;
  overflow: hidden;
}

.login-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.login-cta:hover::before {
  opacity: 1;
}

.login-cta:hover {
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 12px 24px -8px rgba(37, 99, 235, 0.4),
    0 0 0 1px rgba(37, 99, 235, 0.15) !important;
  transform: translateY(-2px) !important;
}

.login-cta-icon {
  background: rgba(255, 255, 255, 0.18) !important;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.login-cta:hover .login-cta-icon {
  background: rgba(255, 255, 255, 0.25) !important;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.4) !important;
  transform: scale(1.05);
}

/* 输入框：更现代的样式 */
.login-phone-field {
  background: #fafbfc !important;
  border: 1.5px solid #e5e7eb !important;
  transition: all 0.25s ease !important;
}

.login-phone-field:hover {
  border-color: #cbd5e1 !important;
  background: #ffffff !important;
}

.login-phone-field:focus-within {
  border-color: #3b82f6 !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
  background: #ffffff !important;
}

/* 验证码按钮：增强视觉反馈 */
.login-phone-code-btn {
  border: 1px solid rgba(59, 130, 246, 0.2) !important;
  background: rgba(59, 130, 246, 0.06) !important;
  transition: all 0.2s ease !important;
}

.login-phone-code-btn:hover {
  background: rgba(59, 130, 246, 0.12) !important;
  border-color: rgba(59, 130, 246, 0.3) !important;
  transform: translateY(-1px);
}

.login-phone-code-btn:active {
  transform: translateY(0);
}

/* 提交按钮：优化边框和阴影 */
.login-phone-submit {
  border: 1.5px solid #e5e7eb !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05) !important;
  transition: all 0.25s ease !important;
}

.login-phone-submit:hover {
  border-color: #3b82f6 !important;
  box-shadow: 0 4px 12px -4px rgba(59, 130, 246, 0.2) !important;
  transform: translateY(-1px) !important;
  color: #2563eb !important;
}

.login-phone-submit:active {
  transform: translateY(0) !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05) !important;
}

/* 第三方登录按钮：增强质感 */
.login-third-party-btn {
  background: #fafbfc !important;
  border: 1.5px solid #e5e7eb !important;
  transition: all 0.25s ease !important;
  position: relative;
  overflow: hidden;
}

.login-third-party-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.login-third-party-btn:hover::before {
  opacity: 1;
}

.login-third-party-btn:hover {
  background: #ffffff !important;
  box-shadow: 0 4px 12px -4px rgba(15, 23, 42, 0.15) !important;
  transform: translateY(-1px) !important;
}

.login-third-party-btn:active {
  transform: translateY(0) !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05) !important;
}

/* 企业微信品牌色 */
.login-third-party-wecom .login-third-party-ico {
  transition: all 0.25s ease;
}

.login-third-party-wecom:hover {
  border-color: #1aad19 !important;
  box-shadow: 0 4px 12px -4px rgba(26, 173, 25, 0.2) !important;
}

.login-third-party-wecom:hover .login-third-party-ico {
  color: #1aad19 !important;
  transform: scale(1.1);
}

/* 飞书品牌色 */
.login-third-party-feishu .login-third-party-ico {
  transition: all 0.25s ease;
}

.login-third-party-feishu:hover {
  border-color: #3370ff !important;
  box-shadow: 0 4px 12px -4px rgba(51, 112, 255, 0.2) !important;
}

.login-third-party-feishu:hover .login-third-party-ico {
  color: #3370ff !important;
  transform: scale(1.1);
}

/* Hero 列表项增强 */
.login-hero-item {
  transition: all 0.3s cubic-bezier(.16,1,.3,1) !important;
}

.login-hero-item:hover {
  transform: translateX(4px) !important;
}

.login-hero-item > i {
  transition: all 0.3s ease;
}

.login-hero-item:hover > i {
  transform: scale(1.05);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 4px 8px -2px rgba(0, 0, 0, 0.1);
}

/* 链接悬浮效果优化 */
.login-form-link,
.login-form-help-link,
.login-footer-link {
  transition: all 0.2s ease;
  position: relative;
}

.login-form-link:hover,
.login-form-help-link:hover,
.login-footer-link:hover {
  transform: translateX(2px);
}

/* 页脚状态点动画优化 */
@keyframes loginStatusPulse {
  0%, 100% {
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.05);
    transform: scale(1.1);
  }
}

.login-footer-status-dot {
  animation: loginStatusPulse 2s ease-in-out infinite !important;
}

/* 减少动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
  .login-shell,
  .login-hero::after,
  .login-hero-item,
  .login-cta,
  .login-third-party-btn,
  .login-phone-submit,
  .login-footer-status-dot {
    animation: none !important;
    transition: none !important;
  }

  .login-hero-item:hover,
  .login-cta:hover,
  .login-third-party-btn:hover,
  .login-phone-submit:hover {
    transform: none !important;
  }
}

/* ============================================================
 * 移动端顶栏一行显示优化
 * ============================================================ */
@media (max-width: 768px) {
  /* 顶栏：强制一行显示 */
  .login-topbar {
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: nowrap !important;
    padding: clamp(8px, 1.5vh, 12px) max(4vw, env(safe-area-inset-left)) clamp(8px, 1.5vh, 12px) max(4vw, env(safe-area-inset-right));
    gap: clamp(8px, 2vw, 12px);
  }

  .login-topbar-brand {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: clamp(6px, 1.5vw, 10px);
    min-width: 0;
  }

  .login-topbar-name {
    font-size: clamp(12px, 3.2vw, 15px);
    white-space: nowrap;
  }

  .login-topbar-sub {
    font-size: clamp(9px, 2.2vw, 11px);
    white-space: nowrap;
  }

  .login-topbar-nav {
    flex-shrink: 0;
    display: flex !important;
    align-items: center;
    flex-wrap: nowrap !important;
    gap: clamp(8px, 2vw, 12px);
  }

  /* 营销链接隐藏 */
  .login-topbar-nav > .login-topbar-link:not(.login-topbar-icon-link):not(.login-topbar-lang),
  .login-topbar-divider {
    display: none !important;
  }

  /* 图标按钮：仅显示图标 */
  .login-topbar-icon-link span,
  .login-topbar-lang span {
    display: none !important;
  }

  .login-topbar-icon-link,
  .login-topbar-lang {
    padding: clamp(6px, 1.2vh, 8px);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background 0.2s ease;
    min-width: clamp(32px, 8vw, 40px);
    min-height: clamp(32px, 8vw, 40px);
  }

  .login-topbar-icon-link:active,
  .login-topbar-lang:active {
    background: rgba(15, 23, 42, 0.08);
  }

  .login-topbar-icon-link i,
  .login-topbar-lang i {
    width: clamp(16px, 4vw, 20px);
    height: clamp(16px, 4vw, 20px);
  }

  .sidebar-brand-mark {
    width: clamp(20px, 5vw, 28px) !important;
    height: clamp(20px, 5vw, 28px) !important;
  }
}

/* 极窄屏：进一步压缩但保持一行 */
@media (max-width: 380px) {
  .login-topbar {
    padding: clamp(6px, 1.2vh, 10px) clamp(10px, 2.5vw, 14px);
    gap: clamp(4px, 1vw, 8px);
  }

  .login-topbar-brand {
    gap: clamp(4px, 1vw, 8px);
  }

  .sidebar-brand-mark {
    width: clamp(18px, 4.5vw, 24px) !important;
    height: clamp(18px, 4.5vw, 24px) !important;
  }

  .login-topbar-name {
    font-size: clamp(10px, 2.8vw, 13px);
  }

  .login-topbar-sub {
    font-size: clamp(7px, 1.8vw, 9px);
  }

  .login-topbar-nav {
    gap: clamp(4px, 1vw, 8px);
  }

  .login-topbar-icon-link,
  .login-topbar-lang {
    min-width: clamp(24px, 6vw, 32px);
    min-height: clamp(24px, 6vw, 32px);
    padding: clamp(3px, 0.8vh, 5px);
  }

  .login-topbar-icon-link i,
  .login-topbar-lang i {
    width: clamp(12px, 3vw, 16px);
    height: clamp(12px, 3vw, 16px);
  }
}

/* ============================================================
 * 智能体七大能力 · 2 列紧凑网格(末项跨两列收束)
 *   - 仅作用于 .login-hero-list-grid,不影响旧三段式列表
 *   - 卡片化:玻璃态底 + 细边 + 内阴影,与 hero 蓝紫底融合
 *   - 字号 / 行距相对原版本下沉,容纳七项不挤压表单区
 * ============================================================ */
.login-hero-list.login-hero-list-grid {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-self: stretch;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 末项:跨两列,作为「学习和自我提升」的总收束 */
.login-hero-list-grid .login-hero-item-span2 {
  grid-column: 1 / -1;
}

/* 卡片本体:玻璃态 + 细边,沿用 hero 既有蓝紫色底 */
.login-hero-list-grid .login-hero-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.03) 100%);
  border: 1px solid rgba(255, 255, 255, 0.13);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 1px 0 rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform 0.22s cubic-bezier(.16,1,.3,1), border-color 0.22s ease, background 0.22s ease !important;
}

.login-hero-list-grid .login-hero-item:hover {
  transform: translateY(-2px) !important;
  border-color: rgba(147, 197, 253, 0.35);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.10) 0%, rgba(255, 255, 255, 0.04) 100%);
}

/* 图标 chip:蓝紫渐变,与 CTA icon 同家族 */
.login-hero-list-grid .login-hero-item-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.22) 0%, rgba(99, 102, 241, 0.16) 100%);
  border: 1px solid rgba(147, 197, 253, 0.28);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
  color: rgba(219, 234, 254, 0.96);
  margin-top: 1px;
  transition: transform 0.22s ease, background 0.22s ease;
}

.login-hero-list-grid .login-hero-item:hover .login-hero-item-ico {
  transform: scale(1.06);
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.32) 0%, rgba(99, 102, 241, 0.22) 100%);
}

/* 文本主体:让 desc 在窄卡内自然换行,不被挤穿 */
.login-hero-list-grid .login-hero-item-body {
  min-width: 0;
  flex: 1;
}

.login-hero-list-grid .login-hero-item-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.005em;
  line-height: 1.35;
  color: #ffffff;
}

.login-hero-list-grid .login-hero-item-desc {
  margin-top: 4px;
  font-size: 11.5px;
  line-height: 1.55;
  color: rgba(219, 234, 254, 0.72);
  letter-spacing: 0;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

/* 入场动画:7 项错峰浮现,延续既有 loginHeroItemIn keyframe */
.login-hero-list-grid .login-hero-item:nth-child(1) { animation-delay: 0.16s; }
.login-hero-list-grid .login-hero-item:nth-child(2) { animation-delay: 0.22s; }
.login-hero-list-grid .login-hero-item:nth-child(3) { animation-delay: 0.28s; }
.login-hero-list-grid .login-hero-item:nth-child(4) { animation-delay: 0.34s; }
.login-hero-list-grid .login-hero-item:nth-child(5) { animation-delay: 0.40s; }
.login-hero-list-grid .login-hero-item:nth-child(6) { animation-delay: 0.46s; }
.login-hero-list-grid .login-hero-item:nth-child(7) { animation-delay: 0.52s; }

/* hero 段落 row-gap 收紧,腾出空间给 7 项网格 */
.login-hero {
  row-gap: clamp(20px, 1.8vw, 28px) !important;
}

/* 主标题在 7 项布局下略下沉,避免与下方网格挤压 */
.login-hero-head h2 {
  font-size: clamp(22px, 1.9vw, 27px);
  line-height: 1.32;
}
.login-hero-head p {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
}

/* 中等屏:卡片 padding 进一步收敛 */
@media (max-width: 1024px) and (min-width: 861px) {
  .login-hero-list.login-hero-list-grid {
    gap: 8px;
  }
  .login-hero-list-grid .login-hero-item {
    padding: 9px 10px;
    gap: 8px;
  }
  .login-hero-list-grid .login-hero-item-ico {
    width: 26px;
    height: 26px;
  }
  .login-hero-list-grid .login-hero-item-title {
    font-size: 12.5px;
  }
  .login-hero-list-grid .login-hero-item-desc {
    font-size: 11px;
    line-height: 1.5;
  }
}