/* =================================================
   AIGCTM Training Management Center - Main Stylesheet
   1:1 Replica of https://www.aigctm.com/
   ================================================= */

/* ========== CSS Variables ========== */
:root {
  --clr-primary: #235BA0;
  --clr-secondary: #3fa8e1;
  --clr-primary-dark: #1a4a85;
  --clr-heading: #1E1E1E;
  --clr-text: #595959;
  --clr-text-light: #949494;
  --clr-white: #ffffff;
  --clr-black: #000000;
  --clr-bg-light: #F8F9FA;
  --clr-bg-card: #F0F2F5;
  --clr-border: #e0e0e0;
  --clr-price: #D2093C;
  --clr-accent: #00b6c2;
  --clr-accent-pink: #ff568d;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

/* ========== Reset & Base ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--clr-text);
  background: var(--clr-white);

}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--clr-heading);
  line-height: 1.3;
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--clr-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

p {
  margin-bottom: 15px;
}

/* ========== Container ========== */
.container {
  width: 100%;
  max-width: 1200px;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

/* ========== Grid System (Bootstrap-like) ========== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 15px; }
.col-9 { flex: 0 0 75%; max-width: 75%; padding: 0 15px; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; padding: 0 15px; }
.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 15px; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; padding: 0 15px; }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 15px; }
.col-xl-3 { padding: 0 15px; }
.col-xl-4 { padding: 0 15px; }
.col-xl-6 { padding: 0 15px; }
.col-xxl-3 { padding: 0 15px; }
.col-lg-4 { padding: 0 15px; }
.col-md-6 { padding: 0 15px; }
.col-md-4 { padding: 0 15px; }
.col-md-10 { padding: 0 15px; }
.col-sm-5 { padding: 0 15px; }
.col-sm-7 { padding: 0 15px; }

/* ========== Utility ========== */
.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.text-center { text-align: center; }
.text-end { text-align: right; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mt-50 { margin-top: 50px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-25 { margin-bottom: 25px; }
.mb-30 { margin-bottom: 30px; }
.mb-60 { margin-bottom: 60px; }
.mb-70 { margin-bottom: 70px; }
.ml-0 { margin-left: 0; }
.mr-0 { margin-right: 0; }
.ml-10 { margin-left: 10px; }
.mr-10 { margin-right: 10px; }
.p-0 { padding: 0; }
.pt-20 { padding-top: 20px; }
.pt-60 { padding-top: 60px; }
.pt-70 { padding-top: 70px; }
.pb-60 { padding-bottom: 60px; }
.pb-90 { padding-bottom: 90px; }
.pb-120 { padding-bottom: 120px; }

/* ========== Header ========== */
.header-area {
  background: var(--clr-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-top-bar {
  padding: 15px 0;
}

.header-logo img {
  width: 150px;
  max-height: 60px;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--clr-heading);
  padding: 8px;
}

/* ========== Navigation ========== */
.nav-area {
  width: 100%;
  background-color: var(--clr-primary);
}

.main-menu ul {
  display: flex;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-menu ul li {
  position: relative;
}

.main-menu ul li a {
  display: block;
  padding: 12px 27px;
  font-size: 14px;
  color: var(--clr-white);
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  transition: all 0.3s;
}

.main-menu ul li a:hover,
.main-menu ul li a.active {
  background: rgba(255,255,255,0.1);
}

/* Sidebar / Offcanvas */
.sidebar-info {
  position: fixed;
  top: 0;
  left: -100%;
  width: 300px;
  height: 100%;
  background: var(--clr-white);
  z-index: 9999;
  transition: all 0.4s;
  box-shadow: 0 0 20px rgba(0,0,0,0.1);
  overflow-y: auto;
}

.sidebar-info.open {
  left: 0;
}

.offcanvas-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.offcanvas-overlay.open {
  opacity: 1;
  visibility: visible;
}

.sidebar-logo-wrapper {
  padding: 20px;
  border-bottom: 1px solid var(--clr-border);
}

.sidebar-logo img {
  max-height: 50px;
}

.sidebar-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--clr-text);
  padding: 5px;
}

.mobile-menu ul {
  padding: 20px;
}

.mobile-menu ul li {
  margin-bottom: 5px;
}

.mobile-menu ul li a {
  display: block;
  padding: 12px 15px;
  font-size: 15px;
  color: var(--clr-heading);
  border-radius: 6px;
  transition: all 0.3s;
}

.mobile-menu ul li a:hover {
  background: var(--clr-bg-card);
  color: var(--clr-primary);
}

/* ========== Breadcrumb ========== */
.breadcrumb-section {
  padding: 20px 0;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 16px;
  color: #595959;
}

.breadcrumb-list a {
  color: #595959;
  font-size: 16px;
}

.breadcrumb-list a:hover {
  color: var(--clr-primary);
}

/* ========== Hero Slider ========== */
.hero-area {
  position: relative;
  overflow: hidden;
}

.hero-slider {
  position: relative;
}

.hero-slide {
  display: none;
  position: relative;
}

.hero-slide.active {
  display: block;
}

.hero-slide img {
  width: 100%;
  min-height: 350px;
  object-fit: cover;
  display: block;
}

/* Slider dots */
.slider-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  border: none;
  transition: all 0.3s;
}

.slider-dot.active {
  background: var(--clr-white);
  transform: scale(1.2);
}

/* ========== Section Common ========== */
.section-title {
  margin-bottom: 30px;
}

.section-title h2 {
  font-size: 20px;
  color: var(--clr-heading);
  font-weight: 700;
}

.section-title .section-header {
  display: inline-block;
  color: var(--clr-white);
  font-size: 20px;
  padding: 11px 27px;
  background-color: var(--clr-primary);
}

/* ========== News Section (Homepage) ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.news-item {
  display: flex;
  gap: 20px;
  padding: 20px;
  border-radius: 8px;
  background: var(--clr-bg-light);
  transition: all 0.3s;
}

.news-item:hover {
  box-shadow: 0 5px 20px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.news-item.has-image {
  grid-column: 1 / -1;
}

.news-thumb {
  width: 220px;
  min-height: 140px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-info {
  flex: 1;
}

.news-category {
  display: inline-block;
  font-size: 12px;
  color: var(--clr-primary);
  background: rgba(18, 104, 235, 0.1);
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 8px;
}

.news-info h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-info h4 a {
  color: var(--clr-heading);
}

.news-info h4 a:hover {
  color: var(--clr-primary);
}

.news-date {
  font-size: 14px;
  color: var(--clr-text-light);
  margin-bottom: 8px;
}

.news-summary {
  font-size: 15px;
  color: var(--clr-text);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item.no-image .news-thumb {
  display: none;
}

.news-item.no-image {
  grid-column: span 1;
}

.view-more {
  text-align: center;
  margin-top: 40px;
}

.view-more a {
  display: inline-block;
  padding: 12px 35px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s;
}

.view-more a:hover {
  background: var(--clr-primary-dark);
  color: var(--clr-white);
}

/* ========== Institution Section ========== */
.institution-area {
  text-align: center;
}

.institution-logos {
  display: flex;
  justify-content: center;
  gap: 60px;
  align-items: center;
  flex-wrap: wrap;
}

.institution-logos a {
  display: block;
  transition: all 0.3s;
}

.institution-logos a:hover {
  transform: scale(1.05);
}

.institution-logos img {
  max-height: 80px;
}

/* ========== Courses Grid ========== */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.course-item {
  background: var(--clr-white);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.3s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.course-item:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transform: translateY(-4px);
}

.course-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.course-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.5s;
}

.course-item:hover .course-img img {
  transform: scale(1.05);
}

.course-content {
  padding: 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--clr-black);
}

.course-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--clr-primary);
  color: var(--clr-white);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 3px;
}

.course-provider {
  font-size: 13px;
  color: var(--clr-primary);
  background: rgba(18, 104, 235, 0.08);
  display: inline-block;
  padding: 2px 10px;
  border-radius: 3px;
}

.course-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--clr-price);
  margin-top: 10px;
}

/* ========== Expert Section ========== */
.expert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.expert-card {
  text-align: center;
  padding: 30px 20px;
  border-radius: 10px;
  background: var(--clr-bg-light);
  transition: all 0.3s;
}

.expert-card:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.expert-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 15px;
  border: 3px solid var(--clr-primary);
}

.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-card h5 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 5px;
}

.expert-card p {
  font-size: 14px;
  color: var(--clr-text);
  line-height: 1.5;
}

/* ========== Policy Section ========== */
.policy-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.policy-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 18px 20px;
  background: var(--clr-white);
  border-radius: 6px;
  transition: all 0.3s;
  border-left: 3px solid var(--clr-primary);
}

.policy-item:hover {
  box-shadow: 0 5px 20px rgba(0,0,0,0.06);
}

.policy-icon {
  font-size: 20px;
  color: var(--clr-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.policy-content {
  flex: 1;
}

.policy-content h5 {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 5px;
  line-height: 1.4;
}

.policy-content h5 a {
  color: var(--clr-heading);
}

.policy-content h5 a:hover {
  color: var(--clr-primary);
}

.policy-date {
  font-size: 13px;
  color: var(--clr-text-light);
}

/* ========== Materials Section ========== */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.material-card {
  text-align: center;
  padding: 25px 15px;
  border-radius: 10px;
  background: var(--clr-bg-light);
  transition: all 0.3s;
}

.material-card:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.material-cover {
  width: 140px;
  height: 180px;
  margin: 0 auto 15px;
  overflow: hidden;
  border-radius: 5px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.material-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.material-card h5 {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

/* ========== Tools Section ========== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.tool-card {
  text-align: center;
  padding: 30px 20px;
  background: var(--clr-white);
  border-radius: 10px;
  transition: all 0.3s;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.tool-card:hover {
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
  transform: translateY(-3px);
}

.tool-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 15px;
  overflow: hidden;
  border-radius: 10px;
}

.tool-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tool-card h5 {
  font-size: 16px;
  font-weight: 600;
}

/* ========== News List Page ========== */
.news-list-container {
  flex: 1;
  margin-right: 70px;
}

.news-list-item {
  display: flex;
  flex-direction: row;
  margin-bottom: 50px;
  color: var(--clr-heading);
}

.news-list-thumb {
  border-radius: 10px;
  min-width: 220px;
  width: 220px;
  height: 145px;
  object-fit: cover;
}

.news-list-content {
  margin-left: 15px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.news-list-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--clr-heading);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.news-list-desc {
  font-size: 14px;
  margin-top: 15px;
  line-height: 1.5;
  flex: 1;
  color: var(--clr-text);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.news-list-date {
  font-size: 14px;
  margin-top: 15px;
  color: var(--clr-text-light);
}

/* ========== Sidebar ========== */
.sidebar {
  width: 300px;
  flex-shrink: 0;
}

.sidebar-widget {
  padding: 0 20px;
}

.sidebar-widget-title {
  font-size: 20px;
  color: var(--clr-primary);
  margin-bottom: 30px;
}

.sidebar-course-item {
  margin-bottom: 30px;
  border-radius: 10px;
  overflow: hidden;
}

.sidebar-course-item .course-img {
  height: 160px;
}

.sidebar-course-item .course-name {
  display: block;
  padding: 10px 0 15px;
  color: var(--clr-black);
  font-size: 16px;
  font-weight: 700;
}

/* ========== Article Detail ========== */
.article-container {
  display: flex;
}

.article-content {
  flex: 1;
  margin-right: 70px;
  color: var(--clr-heading);
  font-size: 16px;
}

.article-title {
  font-size: 20px;
  color: var(--clr-black);
  font-weight: 700;
  margin-bottom: 20px;
}

.article-meta {
  font-size: 14px;
  color: var(--clr-black);
  margin-bottom: 38px;
}

.article-body {
  line-height: 1.8;
  font-size: 16px;
}

.article-body p {
  margin-bottom: 15px;
  line-height: 1.8;
}

.article-body img {
  max-width: 100%;
  border-radius: 8px;
  margin: 15px 0;
}

/* ========== Pagination ========== */
.pagination-area {
  margin-top: 30px;
  text-align: center;
}

.pagination {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.pagination li {
  display: inline-block;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 15px;
  border: 1px solid var(--clr-border);
  border-radius: 5px;
  font-size: 14px;
  color: var(--clr-text);
  transition: all 0.3s;
  min-width: 40px;
  height: 40px;
}

.pagination a:hover,
.pagination a.active {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

.pagination span.current {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

/* ========== Footer ========== */
.footer-area {
  background-color: var(--clr-primary);
  padding: 60px 0;
}

.footer-area .container {
  text-align: left;
}

.footer-logo img {
  width: 206px;
  height: 80px;
}

.footer-info {
  margin-top: 20px;
}

.footer-info div {
  font-size: 16px;
  color: var(--clr-white);
  margin-bottom: 5px;
}

.footer-info a {
  color: var(--clr-white);
}

.footer-info a:hover {
  text-decoration: underline;
}

/* ========== Page Banner ========== */
.page-banner-img {
  margin: 40px 0;
}

.page-banner-img img {
  height: 66px;
}

/* ========== Category Intro ========== */
.category-intro {
  margin-bottom: 40px;
  font-size: 16px;
  color: var(--clr-black);
  max-width: 75%;
}

.category-intro p {
  margin-bottom: 0;
  color: #424242;
}

/* ========== Section Header Block ========== */
.section-header-block {
  display: inline-block;
  color: var(--clr-white);
  font-size: 20px;
  padding: 11px 27px;
  background-color: var(--clr-primary);
}

/* ========== Certificate Grid ========== */
.certificate-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 30px;
}

.certificate-grid img {
  height: 320px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* ========== Partnership Section ========== */
.partnership-grid {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
}

.partnership-item {
  max-width: 550px;
  flex: 1;
  min-width: 380px;
  margin-bottom: 20px;
}

.partnership-header {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.partnership-logo {
  height: 86px;
  margin-right: 20px;
}

.partnership-name {
  font-size: 24px;
  color: var(--clr-black);
}

.partnership-badge {
  font-size: 15px;
  margin-top: 8px;
  width: fit-content;
  font-weight: 700;
  border-radius: 6px;
  padding: 2px 10px;
  color: var(--clr-white);
}

.partnership-badge.cyan {
  background-color: var(--clr-accent);
}

.partnership-badge.pink {
  background-color: var(--clr-accent-pink);
}

.partnership-desc {
  font-size: 16px;
  color: var(--clr-black);
  margin-top: 20px;
  line-height: 1.6;
}

/* ========== Hybrid News Layout (GXB/DZXH policy section) ========== */
.hyzx-grid {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
}

.hyzx-card {
  margin: 10px;
  width: 366px;
}

.hyzx-card img {
  width: 366px;
  height: 276px;
  object-fit: cover;
}

.hyzx-card-body {
  padding: 25px;
  background-color: var(--clr-bg-card);
}

.hyzx-card-title {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  font-size: 20px;
  color: var(--clr-black);
  font-weight: 700;
  line-height: 1.4;
}

.hyzx-card-date {
  font-size: 14px;
  color: var(--clr-text-light);
  margin-top: 5px;
}

.hyzx-card-desc {
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  font-size: 16px;
  color: #595959;
  margin-top: 5px;
  line-height: 1.4;
  height: 66px;
}

/* Side list in hyzx */
.hyzx-list {
  display: flex;
  flex-direction: column;
  width: 366px;
  background-color: var(--clr-bg-card);
  margin: 10px;
  padding: 25px;
  overflow: hidden;
}

.hyzx-list-item {
  margin-bottom: 25px;
}

.hyzx-list-title {
  font-size: 16px;
  height: 44px;
  overflow: hidden;
  color: var(--clr-heading);
}

.hyzx-list-title:hover {
  color: var(--clr-primary);
}

.hyzx-list-date {
  font-size: 14px;
  color: var(--clr-text-light);
}

.hyzx-more-btn {
  display: inline-block;
  width: fit-content;
  font-size: 18px;
  color: var(--clr-black);
  padding: 3px 24px;
  border: 1px solid #707070;
  transition: all 0.3s;
  margin-top: 10px;
}

.hyzx-more-btn:hover {
  background: var(--clr-primary);
  color: var(--clr-white);
  border-color: var(--clr-primary);
}

/* ========== Modal ========== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: var(--clr-white);
  border-radius: 10px;
  padding: 40px;
  max-width: 420px;
  width: 90%;
  position: relative;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--clr-text);
  line-height: 1;
}

.modal-close:hover {
  color: var(--clr-heading);
}

.modal-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 25px;
  text-align: center;
  color: var(--clr-heading);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--clr-heading);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  height: 45px;
  line-height: 45px;
  padding: 0 15px;
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  font-size: 15px;
  transition: border-color 0.3s;
}

.form-group input:focus {
  border-color: var(--clr-primary);
  outline: none;
}

.btn-submit {
  width: 100%;
  height: 45px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-submit:hover {
  background: var(--clr-primary-dark);
}

.checkbox-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 15px;
  font-size: 14px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.checkbox-group a:hover {
  color: var(--clr-primary);
}

/* Modal tabs */
.modal-tabs {
  display: flex;
  margin-bottom: 25px;
  border-bottom: 2px solid var(--clr-border);
}

.modal-tab {
  flex: 1;
  text-align: center;
  padding: 10px;
  cursor: pointer;
  font-weight: 500;
  color: var(--clr-text);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.3s;
}

.modal-tab.active {
  color: var(--clr-primary);
  border-bottom-color: var(--clr-primary);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
}

/* Search modal */
.search-modal .modal-content {
  max-width: 600px;
}

.search-modal .form-group {
  position: relative;
}

.search-modal input {
  padding-right: 50px;
}

.btn-search-submit {
  position: absolute;
  right: 5px;
  top: 5px;
  height: 35px;
  width: 40px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* ========== Responsive ========== */
@media (max-width: 1199px) {
  .courses-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .expert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .materials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 991px) {
  .header-top-bar .row {
    flex-direction: row;
  }
  
  .main-menu {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .expert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .materials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .policy-list {
    grid-template-columns: 1fr;
  }
  
  .article-container {
    flex-direction: column;
  }
  
  .article-content {
    margin-right: 0;
  }
  
  .sidebar {
    width: 100%;
  }
  
  .news-list-container {
    margin-right: 0;
  }
  
  .news-list-item {
    flex-direction: column;
  }
  
  .news-list-thumb {
    width: 100%;
    height: 200px;
    margin-bottom: 15px;
  }
  
  .news-list-content {
    margin-left: 0;
  }
  
  .hyzx-card,
  .hyzx-list {
    width: 100%;
    max-width: 366px;
  }
  
  .category-intro {
    max-width: 100%;
  }
  
  .partnership-item {
    min-width: 100%;
    max-width: 100%;
  }
  
  .col-xl-3,
  .col-xl-4,
  .col-xl-6 {
    flex: 0 0 50%;
    max-width: 50%;
  }
  
  .certificate-grid img {
    height: 200px;
  }
}

@media (max-width: 767px) {
  .section-title .section-header {
    font-size: 16px;
    padding: 8px 20px;
  }
  
  .courses-grid {
    grid-template-columns: 1fr;
  }
  
  .expert-grid {
    grid-template-columns: 1fr;
  }
  
  .materials-grid {
    grid-template-columns: 1fr;
  }
  
  .tools-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-slide img {
    min-height: 200px;
  }
  
  .institution-logos {
    gap: 30px;
  }
  
  .news-item {
    flex-direction: column;
  }
  
  .news-thumb {
    width: 100%;
    height: 180px;
  }
  
  .news-list-thumb {
    height: 180px;
  }
  
  .col-xl-3,
  .col-xl-4,
  .col-xl-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }
  
  .certificate-grid img {
    height: 180px;
  }
  
  .hyzx-card img {
    width: 100%;
    height: 200px;
  }
  
  .footer-logo img {
    width: 150px;
    height: auto;
  }
}

/* ========== Auth / Header User ========== */
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-user-area {
  display: flex;
  align-items: center;
}

.header-login-btn {
  background: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: 6px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.header-login-btn:hover {
  background: var(--clr-primary-dark);
}

.header-user {
  position: relative;
}

.header-user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--clr-bg-light);
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--clr-heading);
  cursor: pointer;
}

.header-user-name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--clr-white);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  min-width: 140px;
  padding: 6px 0;
  display: none;
  z-index: 1001;
}

.header-user-menu.open {
  display: block;
}

.header-dropdown-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--clr-heading);
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.header-dropdown-item:hover {
  background: var(--clr-bg-light);
  color: var(--clr-primary);
}

.login-error {
  color: #D2093C;
  font-size: 13px;
  margin: -10px 0 15px;
  min-height: 18px;
}

/* ========== Trial Courses ========== */
.trial-hero {
  background: linear-gradient(135deg, #235BA0 0%, #3fa8e1 100%);
  color: var(--clr-white);
  padding: 60px 0;
  text-align: center;
}

.trial-hero h1 {
  color: var(--clr-white);
  font-size: 28px;
  margin-bottom: 12px;
}

.trial-hero p {
  color: rgba(255,255,255,0.9);
  margin: 0;
}

.trial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.trial-card {
  background: var(--clr-white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s;
}

.trial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.trial-card-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.trial-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.trial-card-body {
  padding: 18px;
}

.trial-card-body h4 {
  font-size: 16px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.trial-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.trial-card-tags span {
  font-size: 12px;
  color: var(--clr-primary);
  background: rgba(35,91,160,0.08);
  padding: 2px 8px;
  border-radius: 3px;
}

.trial-card-btn {
  display: inline-block;
  padding: 10px 24px;
  background: var(--clr-primary);
  color: var(--clr-white);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
}

.trial-card-btn:hover {
  background: var(--clr-primary-dark);
  color: var(--clr-white);
}

.trial-login-tip {
  text-align: center;
  padding: 60px 20px;
}

.trial-login-tip h3 {
  margin-bottom: 16px;
}

/* ========== Course Player ========== */
.player-section {
  padding: 40px 0;
}

.video-player-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.video-format-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.7), rgba(0,0,0,0.2));
  color: #fff;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}

.video-player-wrapper:hover .video-format-bar,
.video-format-bar:focus-within {
  opacity: 1;
  pointer-events: auto;
}

.video-format-label {
  margin-right: 4px;
  opacity: 0.9;
}

.video-format-btn {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.video-format-btn:hover {
  background: rgba(255,255,255,0.3);
}

.video-format-btn.active {
  background: var(--clr-primary, #235BA0);
  border-color: var(--clr-primary, #235BA0);
}

@media (max-width: 767px) {
  .video-format-bar {
    opacity: 1;
    pointer-events: auto;
    padding: 8px;
    gap: 6px;
  }
  .video-format-btn {
    padding: 3px 8px;
  }
}

.video-player-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.player-info {
  margin-top: 25px;
}

.player-info h1 {
  font-size: 22px;
  margin-bottom: 10px;
}

.player-info p {
  color: var(--clr-text);
  line-height: 1.7;
}

.player-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  color: var(--clr-primary);
  font-size: 14px;
}

.player-back:hover {
  color: var(--clr-primary-dark);
}

@media (max-width: 991px) {
  .trial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .header-user-name {
    max-width: 90px;
  }
}

@media (max-width: 767px) {
  .trial-grid {
    grid-template-columns: 1fr;
  }
  .trial-hero h1 {
    font-size: 22px;
  }
  .header-login-btn {
    padding: 6px 14px;
    font-size: 13px;
  }
  .header-user-btn {
    padding: 6px 10px;
  }
  .header-user-name {
    max-width: 80px;
  }
}