:root {
  /* ===== 品牌色（design-scheme-6: 极简无彩色 + 单一强调色）===== */
  --njgj-white: #FFFFFF;
  --njgj-black: #1A1A1A;
  /* 灰度系统 */
  --njgj-gray-100: #F5F5F7;
  --njgj-gray-300: #D1D1D6;
  --njgj-gray-500: #86868B;
  --njgj-gray-700: #4A4A4A;
  /* 品牌强调色（唯一品牌色，取自Logo） */
  --njgj-color-primary: #5B8DEF;
  --njgj-color-primary-light: #7AADFF;
  --njgj-color-primary-dark: #4A7BD5;
  --njgj-color-primary-rgb: 91, 141, 239;
  --njgj-color-accent: #5B8DEF;
  --njgj-color-accent-glow: rgba(91, 141, 239, 0.12);
  --njgj-color-accent-light: #E8F0FE;
  --njgj-color-accent-rgb: 91, 141, 239;
  /* 功能色 */
  --njgj-color-danger: #C41E3A;
  --njgj-color-danger-rgb: 196, 30, 58;
  --njgj-color-success: #27AE60;
  /* 文字色 */
  --njgj-color-text: #1A1A1A;
  --njgj-color-text-secondary: #4A4A4A;
  --njgj-color-text-muted: #86868B;
  /* 背景色 */
  --njgj-color-bg: #F5F5F7;
  --njgj-color-card-bg: #FFFFFF;
  --njgj-color-border: #D1D1D6;
  --njgj-color-border-light: #F5F5F7;
  /* 底部 */
  --njgj-color-footer-bg: #F5F5F7;
  --njgj-color-footer-text: #4A4A4A;
  --njgj-color-footer-border: #D1D1D6;
  /* 导航栏（纯白） */
  --njgj-nav-bg: #FFFFFF;
  --njgj-nav-text: #4A4A4A;
  --njgj-nav-border: #D1D1D6;
  --njgj-nav-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  /* Hero */
  --njgj-hero-bg-start: #FFFFFF;
  --njgj-hero-bg-end: #F5F5F7;
  /* 字体 */
  --njgj-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --njgj-font-family-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", sans-serif;
  /* 圆角 */
  --njgj-radius-sm: 6px;
  --njgj-radius-md: 12px;
  --njgj-radius-lg: 20px;
  --njgj-radius-xl: 40px;
  /* 阴影（基于纯黑透明度，削弱品牌色关联） */
  --njgj-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --njgj-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
  --njgj-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08);
  --njgj-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
  --njgj-shadow-glow: 0 0 0 3px rgba(91, 141, 239, 0.25);
  --njgj-shadow-ai: 0 0 20px rgba(91, 141, 239, 0.12);
  /* 动效 */
  --njgj-transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --njgj-transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --njgj-transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  /* 布局 */
  --njgj-max-width: 1200px;
  --njgj-nav-height: 72px;
  --njgj-page-padding: 24px;
}
* {
  box-sizing: border-box;
}
body {
  font-family: var(--njgj-font-family);
  color: var(--njgj-color-text);
  background-color: var(--njgj-color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--njgj-color-primary);
  text-decoration: none;
  transition: color var(--njgj-transition-fast);
}
a:hover {
  color: var(--njgj-color-primary-dark);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul,
ol {
  list-style: none;
  padding: 0;
  margin: 0;
}
h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}
.njgj-container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0 var(--njgj-page-padding);
}
.njgj-section {
  padding: 100px 0;
}
.njgj-section__header {
  text-align: center;
  margin-bottom: 48px;
}
.njgj-section__title {
  font-size: 28px;
  font-weight: 600;
  color: var(--njgj-black);
  margin-bottom: 12px;
}
.njgj-section__subtitle {
  font-size: 16px;
  color: var(--njgj-color-text-secondary);
}
body {
  padding-top: var(--njgj-nav-height);
}
.njgj-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--njgj-nav-height);
  background: var(--njgj-nav-bg);
  border-bottom: 1px solid var(--njgj-nav-border);
  backdrop-filter: blur(12px);
  z-index: 1000;
  transition: all var(--njgj-transition-base);
}
.njgj-nav--scrolled {
  background: var(--njgj-nav-bg);
  box-shadow: var(--njgj-nav-shadow);
  border-bottom: 1px solid var(--njgj-nav-border);
}
.njgj-nav__container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0 var(--njgj-page-padding);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.njgj-nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--njgj-nav-text);
  font-size: 18px;
  font-weight: 600;
  margin-right: 8px;
  flex-shrink: 0;
}
.njgj-nav__logo:hover {
  color: var(--njgj-color-primary);
}
.njgj-nav__logo-img {
  height: 44px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}
.njgj-nav__logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.njgj-nav__logo-text {
  color: var(--njgj-black);
  font-weight: 700;
}
.njgj-nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: 16px;
}
.njgj-nav__link {
  color: var(--njgj-nav-text);
  font-size: 15px;
  font-weight: 500;
  transition: color var(--njgj-transition-fast);
  position: relative;
  padding: 8px 0;
  white-space: nowrap;
}
.njgj-nav__link:hover {
  color: var(--njgj-color-primary);
}
.njgj-nav__link--active {
  color: var(--njgj-color-primary);
  font-weight: 600;
}
.njgj-nav__link--active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--njgj-color-primary);
  border-radius: 1px;
}
.njgj-nav__cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: var(--njgj-radius-xl);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: var(--njgj-color-primary);
  text-decoration: none;
  transition: all var(--njgj-transition-base);
  white-space: nowrap;
  margin-left: 16px;
  flex-shrink: 0;
}
.njgj-nav__cta-btn:hover {
  color: #fff;
  background: var(--njgj-color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--njgj-shadow-md);
}
.njgj-nav__search {
  display: flex;
  align-items: center;
  background: var(--njgj-color-bg);
  border-radius: 20px;
  padding: 0 12px;
  height: 36px;
  border: 1px solid var(--njgj-color-border);
  transition: all var(--njgj-transition-fast);
  margin-left: 12px;
  flex-shrink: 0;
}
.njgj-nav__search:focus-within {
  background: #fff;
  border-color: var(--njgj-color-primary);
}
.njgj-nav__search-input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--njgj-color-text);
  font-size: 13px;
  padding: 6px 8px;
  width: 120px;
}
.njgj-nav__search-input::placeholder {
  color: var(--njgj-color-text-muted);
}
.njgj-nav__search-btn {
  background: none;
  border: none;
  color: var(--njgj-nav-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 0;
}
.njgj-nav__search-btn:hover {
  color: var(--njgj-color-primary);
}
.njgj-nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.njgj-nav__cta {
  padding: 10px 24px;
  border-radius: var(--njgj-radius-md);
  font-size: 15px;
  font-weight: 600;
  transition: all var(--njgj-transition-base);
  cursor: pointer;
  text-decoration: none;
  background: var(--njgj-color-primary);
  color: #fff;
}
.njgj-nav__cta:hover {
  color: #fff;
  background: var(--njgj-color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--njgj-shadow-md);
}
.njgj-nav__cta--outline {
  background: transparent;
  color: var(--njgj-nav-text);
  border: 1px solid var(--njgj-color-border);
}
.njgj-nav__cta--outline:hover {
  background: var(--njgj-color-bg);
  color: var(--njgj-color-primary);
  box-shadow: none;
  transform: none;
}
.njgj-nav__cta--login {
  background: transparent;
  color: var(--njgj-color-primary);
  border: 1px solid var(--njgj-color-primary);
}
.njgj-nav__cta--login:hover {
  background: var(--njgj-color-primary);
  color: #fff;
  box-shadow: var(--njgj-shadow-md);
}
.njgj-nav__notify {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--njgj-nav-text);
  transition: all var(--njgj-transition-fast);
  position: relative;
  text-decoration: none;
}
.njgj-nav__notify:hover {
  background: var(--njgj-color-bg);
  color: var(--njgj-color-primary);
}
.njgj-nav__notify--has {
  color: var(--njgj-color-danger);
}
.njgj-nav__notify-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--njgj-color-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}
.njgj-nav__user {
  position: relative;
  display: flex;
  align-items: center;
}
.njgj-nav__user-avatar {
  display: flex;
  align-items: center;
}
.njgj-nav__user-avatar img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 2px solid var(--njgj-color-border);
  transition: border-color var(--njgj-transition-fast);
  object-fit: cover;
}
.njgj-nav__user-avatar:hover img {
  border-color: var(--njgj-color-primary);
}
.njgj-nav__user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: #fff;
  border-radius: var(--njgj-radius-lg);
  box-shadow: var(--njgj-shadow-xl);
  min-width: 160px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--njgj-transition-fast);
  z-index: 1001;
}
.njgj-nav__user:hover .njgj-nav__user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.njgj-nav__user-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--njgj-color-border);
}
.njgj-nav__user-header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.njgj-nav__user-header-info {
  flex: 1;
  min-width: 0;
}
.njgj-nav__user-header-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--njgj-color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.njgj-nav__user-header-role {
  font-size: 12px;
  color: var(--njgj-color-text-muted);
}
.njgj-nav__user-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--njgj-color-text-secondary);
  transition: all var(--njgj-transition-fast);
  text-decoration: none;
}
.njgj-nav__user-link:hover {
  background: rgba(var(--njgj-color-primary-rgb), 0.06);
  color: var(--njgj-color-primary);
}
.njgj-nav__user-link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-size: 15px;
  flex-shrink: 0;
}
.njgj-nav__user-link-badge {
  margin-left: auto;
  background: var(--njgj-color-danger);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 10px;
  line-height: 1.4;
}
.njgj-nav__user-link--logout {
  color: var(--njgj-color-danger);
}
.njgj-nav__user-link--logout:hover {
  background: rgba(var(--njgj-color-danger-rgb), 0.06);
  color: var(--njgj-color-danger);
}
.njgj-nav__user-divider {
  height: 1px;
  background: var(--njgj-color-border);
  margin: 4px 0;
}
.njgj-nav__mobile-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--njgj-nav-text);
  cursor: pointer;
  padding: 4px;
}
.njgj-hero {
  background: linear-gradient(180deg, var(--njgj-hero-bg-start) 0%, var(--njgj-hero-bg-end) 100%);
  padding: 80px 0 64px;
  position: relative;
  overflow: hidden;
}
.njgj-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(var(--njgj-color-primary-rgb), 0.05) 0%, transparent 70%);
  pointer-events: none;
}
.njgj-hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(var(--njgj-color-primary-rgb), 0.04) 0%, transparent 70%);
  pointer-events: none;
}
.njgj-hero__container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0 var(--njgj-page-padding);
  position: relative;
  z-index: 1;
}
.njgj-hero__content {
  max-width: 640px;
}
.njgj-hero__title {
  font-size: 42px;
  font-weight: 600;
  color: var(--njgj-black);
  line-height: 1.25;
  margin-bottom: 20px;
}
.njgj-hero__title-accent {
  color: var(--njgj-color-primary);
}
.njgj-hero__desc {
  font-size: 17px;
  color: var(--njgj-color-text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}
.njgj-hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.njgj-hero__btn {
  padding: 14px 32px;
  border-radius: var(--njgj-radius-xl);
  font-size: 15px;
  font-weight: 600;
  display: inline-block;
  transition: all var(--njgj-transition-base);
}
.njgj-hero__btn--primary {
  background: var(--njgj-color-primary);
  color: #fff;
}
.njgj-hero__btn--primary:hover {
  transform: translateY(-2px);
  color: #fff;
  background: var(--njgj-color-primary-dark);
  box-shadow: var(--njgj-shadow-md);
}
.njgj-hero__btn--ghost {
  background: transparent;
  color: var(--njgj-color-text-secondary);
  border: 1px solid var(--njgj-color-border);
  border-radius: var(--njgj-radius-xl);
}
.njgj-hero__btn--ghost:hover {
  background: var(--njgj-color-bg);
  color: var(--njgj-color-primary);
}
.njgj-hero__stats {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--njgj-color-border);
}
.njgj-hero__stat {
  text-align: center;
}
.njgj-hero__stat-value {
  font-size: 32px;
  font-weight: 600;
  color: var(--njgj-color-primary);
  line-height: 1.2;
}
.njgj-hero__stat-label {
  font-size: 13px;
  color: var(--njgj-color-text-secondary);
  margin-top: 4px;
}
.njgj-course-section {
  background: var(--njgj-color-bg);
}
.njgj-course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.njgj-course-card {
  background: var(--njgj-color-card-bg);
  border: 1px solid var(--njgj-color-border);
  border-radius: var(--njgj-radius-md);
  overflow: hidden;
  transition: all var(--njgj-transition-base);
  display: flex;
  flex-direction: column;
  box-shadow: var(--njgj-shadow-sm);
}
.njgj-course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--njgj-shadow-lg);
  border-color: var(--njgj-color-primary);
  color: var(--njgj-color-text);
}
.njgj-course-card__thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--njgj-gray-100);
}
.njgj-course-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--njgj-transition-base);
}
.njgj-course-card:hover .njgj-course-card__thumb img {
  transform: scale(1.05);
}
.njgj-course-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: var(--njgj-radius-sm);
  font-size: 11px;
  font-weight: 600;
}
.njgj-course-card__badge--free {
  background: var(--njgj-color-success);
  color: #fff;
}
.njgj-course-card__badge--live {
  background: var(--njgj-color-danger);
  color: #fff;
  animation: njgj-pulse 2s infinite;
}
.njgj-course-card__info {
  padding: 16px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.njgj-course-card__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--njgj-color-text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.njgj-course-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--njgj-color-text-muted);
  font-size: 12px;
}
.njgj-course-card__meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}
.njgj-course-card__meta-item svg {
  width: 14px;
  height: 14px;
  stroke: var(--njgj-color-text-muted);
}
.njgj-course-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--njgj-color-border);
  margin-top: 12px;
}
.njgj-course-card__price {
  font-size: 17px;
  font-weight: 700;
  color: var(--njgj-color-primary);
}
.njgj-course-card__price--free {
  color: var(--njgj-color-success);
}
.njgj-course-card__teacher {
  display: flex;
  align-items: center;
  gap: 6px;
}
.njgj-course-card__teacher-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}
.njgj-course-card__teacher-name {
  font-size: 12px;
  color: var(--njgj-color-text-secondary);
}
@keyframes njgj-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}
.njgj-footer {
  background: var(--njgj-color-footer-bg);
  color: var(--njgj-color-footer-text);
  padding: 48px 0 24px;
  border-top: 1px solid var(--njgj-color-footer-border);
  /* 链接网格区域 - 由block_show渲染 */
  /* 品牌右侧区域 - Logo + 社交链接 */
}
.njgj-footer__container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0 var(--njgj-page-padding);
}
.njgj-footer__grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 40px;
  margin-bottom: 40px;
}
.njgj-footer__brand-logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--njgj-color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.njgj-footer__brand-logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
}
.njgj-footer__brand-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--njgj-color-text-muted);
  margin-bottom: 12px;
}
.njgj-footer__links-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}
.njgj-footer__brand-area {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 16px;
}
.njgj-footer__brand-logo-link {
  display: inline-block;
}
.njgj-footer__social {
  display: flex;
  gap: 12px;
  align-items: center;
}
.njgj-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--njgj-color-bg);
  color: var(--njgj-color-text-secondary);
  border: 1px solid var(--njgj-color-border);
  transition: all var(--njgj-transition-fast);
  position: relative;
}
.njgj-footer__social-link:hover {
  background: var(--njgj-color-primary);
  color: #fff;
  border-color: var(--njgj-color-primary);
}
.njgj-footer__social-link--qrcode {
  cursor: pointer;
}
.njgj-footer__qrcode-popup {
  display: none;
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 8px;
  background: #fff;
  padding: 8px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 100;
}
.njgj-footer__qrcode-popup img {
  width: 120px;
  height: 120px;
  display: block;
}
.njgj-footer__qrcode-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #fff;
}
.njgj-footer__social-link--qrcode:hover .njgj-footer__qrcode-popup {
  display: block;
}
.njgj-footer__column-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--njgj-color-primary);
  margin-bottom: 16px;
}
.njgj-footer__column-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.njgj-footer__column-links a {
  color: var(--njgj-color-text-muted);
  font-size: 13px;
  transition: color var(--njgj-transition-fast);
}
.njgj-footer__column-links a:hover {
  color: var(--njgj-color-accent);
}
.njgj-footer__bottom {
  border-top: 1px solid var(--njgj-color-footer-border);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 16px;
  font-size: 12px;
  color: var(--njgj-color-text-muted);
}
.njgj-footer__bottom a {
  color: var(--njgj-color-text-muted);
}
.njgj-footer__bottom a:hover {
  color: var(--njgj-color-accent);
}
.njgj-footer__bottom img {
  vertical-align: middle;
}
.njgj-footer__icp,
.njgj-footer__record,
.njgj-footer__record-link {
  color: var(--njgj-color-text-muted);
}
.njgj-footer__icp:hover,
.njgj-footer__record:hover,
.njgj-footer__record-link:hover {
  color: var(--njgj-color-accent);
}
/* 编辑区block样式 */
/* 轮播图区域 */
.njgj-poster {
  margin-top: 0;
}
.njgj-poster.swiper-container {
  width: 100%;
  overflow: hidden;
}
.njgj-poster .swiper-slide {
  text-align: center;
  position: relative;
  background: var(--njgj-gray-100) !important;
}
.njgj-poster .swiper-slide img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 560px;
}
.njgj-poster .swiper-slide.limit-wide .container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0;
}
.njgj-poster .swiper-slide.limit-wide .container img {
  max-width: 1140px;
  height: auto;
}
.njgj-poster .swiper-slide.full-width img {
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: cover;
}
.njgj-poster .swiper-pager {
  text-align: center;
  padding: 12px 0;
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  z-index: 10;
}
.njgj-poster .swiper-pager .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  margin: 0 6px;
  cursor: pointer;
  transition: all var(--njgj-transition-fast);
}
.njgj-poster .swiper-pager .swiper-pagination-bullet:hover,
.njgj-poster .swiper-pager .swiper-pagination-bullet.swiper-pagination-bullet-active {
  background: var(--njgj-color-primary);
  transform: scale(1.2);
}
/* 中部特色展示 */
.njgj-introduction {
  padding: 60px 0;
  background: var(--njgj-color-card-bg);
}
.njgj-introduction__item {
  text-align: center;
  padding: 24px 16px;
  transition: all var(--njgj-transition-base);
  border-radius: var(--njgj-radius-md);
}
.njgj-introduction__item:hover {
  transform: translateY(-2px);
  box-shadow: var(--njgj-shadow-md);
}
.njgj-introduction__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
}
.njgj-introduction__icon img {
  width: 100%;
  height: auto;
}
.njgj-introduction__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--njgj-black);
  margin-bottom: 8px;
}
.njgj-introduction__desc {
  font-size: 14px;
  color: var(--njgj-color-text-secondary);
  line-height: 1.6;
}
/* 中部广告横幅 */
.njgj-ad-banner {
  text-align: center;
  padding: 24px 0;
}
.njgj-ad-banner img {
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}
/* CTA区域 */
.njgj-cta {
  background: var(--njgj-color-bg);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.njgj-cta::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(var(--njgj-color-primary-rgb), 0.05) 0%, transparent 70%);
  pointer-events: none;
}
.njgj-cta__container {
  max-width: var(--njgj-max-width);
  margin: 0 auto;
  padding: 0 var(--njgj-page-padding);
  text-align: center;
  position: relative;
  z-index: 1;
}
.njgj-cta__title {
  font-size: 24px;
  font-weight: 600;
  color: var(--njgj-black);
  margin-bottom: 16px;
  line-height: 1.4;
}
.njgj-cta__desc {
  font-size: 15px;
  color: var(--njgj-color-text-secondary);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.njgj-cta__perks {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.njgj-cta__perk {
  text-align: center;
}
.njgj-cta__perk-icon {
  width: 52px;
  height: 52px;
  background: rgba(var(--njgj-color-primary-rgb), 0.08);
  border: 1px solid rgba(var(--njgj-color-primary-rgb), 0.15);
  border-radius: var(--njgj-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
}
.njgj-cta__perk-text {
  font-size: 13px;
  color: var(--njgj-color-text-secondary);
}
.njgj-cta__btn {
  background: var(--njgj-color-primary);
  color: #fff;
  padding: 14px 36px;
  border-radius: var(--njgj-radius-xl);
  font-size: 15px;
  font-weight: 600;
  display: inline-block;
  transition: all var(--njgj-transition-base);
}
.njgj-cta__btn:hover {
  transform: translateY(-2px);
  background: var(--njgj-color-primary-dark);
  color: #fff;
  box-shadow: var(--njgj-shadow-md);
}
.njgj-cta__note {
  font-size: 12px;
  color: var(--njgj-color-text-muted);
  margin-top: 16px;
}
/* 师资力量 */
.njgj-teacher-section {
  background: #fff;
}
.njgj-teacher-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.njgj-teacher-card {
  background: var(--njgj-color-card-bg);
  border: 1px solid var(--njgj-color-border);
  border-radius: var(--njgj-radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--njgj-transition-base);
}
.njgj-teacher-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--njgj-shadow-md);
  border-color: var(--njgj-color-primary);
}
.njgj-teacher-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 16px;
  border: 2px solid var(--njgj-color-border);
}
.njgj-teacher-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.njgj-teacher-card__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--njgj-color-text);
  margin-bottom: 4px;
}
.njgj-teacher-card__title {
  font-size: 13px;
  color: var(--njgj-color-primary);
  margin-bottom: 8px;
}
.njgj-teacher-card__about {
  font-size: 12px;
  color: var(--njgj-color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
/* 隐藏系统默认导航和底部 */
.es-footer {
  display: none !important;
}
.es-nav {
  display: none !important;
}
@media (min-width: 1280px) {
  .njgj-course-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media (max-width: 1024px) {
  .njgj-course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .njgj-hero__title {
    font-size: 34px;
  }
  .njgj-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .njgj-nav__links {
    display: none;
  }
  .njgj-nav__mobile-btn {
    display: block;
  }
  .njgj-teacher-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .njgj-news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
.njgj-mobile-nav {
  position: fixed;
  top: 0;
  right: -280px;
  width: 280px;
  height: 100%;
  background: #fff;
  z-index: 2000;
  transition: right 0.3s ease;
  overflow-y: auto;
}
.njgj-mobile-nav.active {
  right: 0;
}
.njgj-mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--njgj-color-border);
}
.njgj-mobile-nav__logo {
  font-size: 16px;
  font-weight: 600;
  color: var(--njgj-color-primary);
  text-decoration: none;
}
.njgj-mobile-nav__close {
  background: none;
  border: none;
  font-size: 28px;
  color: var(--njgj-color-text-muted);
  cursor: pointer;
  line-height: 1;
}
.njgj-mobile-nav__close:hover {
  color: var(--njgj-color-primary);
}
.njgj-mobile-nav__body {
  padding: 12px 0;
}
.njgj-mobile-nav__link {
  display: block;
  padding: 14px 20px;
  font-size: 15px;
  color: var(--njgj-color-text);
  text-decoration: none;
  transition: all 0.15s;
}
.njgj-mobile-nav__link:hover {
  background: var(--njgj-color-bg);
  color: var(--njgj-color-primary);
}
.njgj-mobile-nav__link--logout {
  color: var(--njgj-color-danger);
}
.njgj-mobile-nav__link--logout:hover {
  background: rgba(var(--njgj-color-danger-rgb), 0.06);
}
.njgj-mobile-nav__divider {
  height: 1px;
  background: var(--njgj-color-border);
  margin: 8px 20px;
}
.njgj-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}
.njgj-overlay.active {
  opacity: 1;
  visibility: visible;
}
@media (min-width: 1024px) {
  .njgj-mobile-nav,
  .njgj-overlay {
    display: none !important;
  }
}
@media (max-width: 768px) {
  :root {
    --njgj-page-padding: 16px;
  }
  .njgj-section {
    padding: 48px 0;
  }
  .njgj-section__title {
    font-size: 22px;
  }
  .njgj-section__subtitle {
    font-size: 14px;
  }
  .njgj-section__header {
    margin-bottom: 24px;
  }
  .njgj-nav__links {
    display: none;
  }
  .njgj-nav__search {
    display: none;
  }
  .njgj-nav__actions {
    gap: 8px;
  }
  .njgj-nav__cta {
    padding: 6px 14px;
    font-size: 12px;
  }
  .njgj-nav__cta-btn {
    display: none;
  }
  .njgj-nav__logo-img {
    height: 32px;
  }
  .njgj-nav__mobile-btn {
    display: block;
  }
  .njgj-hero {
    padding: 80px 0 48px;
  }
  .njgj-hero__title {
    font-size: 28px;
  }
  .njgj-hero__desc {
    font-size: 15px;
  }
  .njgj-hero__actions {
    flex-direction: column;
    gap: 12px;
  }
  .njgj-hero__actions a {
    text-align: center;
  }
  .njgj-hero__stats {
    gap: 24px;
    margin-top: 32px;
    padding-top: 24px;
  }
  .njgj-hero__stat-value {
    font-size: 24px;
  }
  .njgj-hero__stat-label {
    font-size: 12px;
  }
  .njgj-poster .swiper-slide img {
    max-height: 240px;
    object-fit: cover;
  }
  .njgj-course-grid {
    grid-template-columns: 1fr;
  }
  .njgj-introduction__item {
    margin-bottom: 16px;
  }
  .njgj-teacher-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .njgj-teacher-card {
    padding: 16px 12px;
  }
  .njgj-teacher-card__avatar {
    width: 60px;
    height: 60px;
  }
  .njgj-news-grid {
    grid-template-columns: 1fr;
  }
  .njgj-cta {
    padding: 48px 0;
  }
  .njgj-cta__title {
    font-size: 20px;
  }
  .njgj-cta__perks {
    gap: 24px;
  }
  .njgj-cta__btn {
    padding: 12px 28px;
    font-size: 14px;
  }
  .njgj-footer__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .njgj-footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}