/* ============================================================
   AI Show 2027 — 全站共用样式表
   暗系科技风 · 响应式设计 · Mobile First
   ============================================================ */

/* ─────────────────────────────────────────────
   1. 变量 & 全局重置
   ───────────────────────────────────────────── */
:root {
  --bg-primary: #0d1117;
  /*--bg-secondary: #161b22;*/
  --bg-secondary: #060918;
  --bg-tertiary: #1c2333;
  --bg-card: #1a2035;
  --border-color: #2d3748;
  --border-light: #3d4f6e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --accent-dark: #1f6feb;
  --cta: #f0883e;
  --cta-hover: #fb923c;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --success: #3fb950;
  --danger: #f85149;
  --bg-dark: #0a0e27;
  --gradient-1: linear-gradient(135deg, #6C5CE7, #00D2FF);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.6);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
  --nav-height: 72px;
  --max-width: 1280px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
}

/* ─────────────────────────────────────────────
   2. 滚动条 & 选中
   ───────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}

::selection {
  background: var(--accent-dark);
  color: #fff;
}

/* ─────────────────────────────────────────────
   3. 通用布局
   ───────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  background: var(--bg-dark);
}

.section--dark {
  background: var(--bg-secondary);
}

.section--card {
  background: var(--bg-tertiary);
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-size: clamp(20px, 4vw, 29px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 48px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* ─────────────────────────────────────────────
   4. 导航栏
   ───────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-color);
}

.navbar .container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
}

.nav-logo img {
  height: 42px;
  width: auto;
}

.nav-logo-text {
  /*display: none;*/
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo-text .cn {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
}

.nav-logo-text .en {
  font-size: 10px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 16px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  color: #fff;
  background: rgba(88, 166, 255, 0.08);
}

.nav-link.active {
  color: var(--accent);
}

.nav-link .arrow {
  font-size: 10px;
  transition: transform var(--transition);
}

.nav-item:hover .arrow {
  transform: rotate(180deg);
}

/* 二级下拉菜单 */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 100;
}

.nav-item:hover > .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item a {
  display: block;
  padding: 9px 16px;
  color: var(--text-secondary);
  font-size: 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown-item a:hover {
  background: rgba(88, 166, 255, 0.1);
  color: var(--accent);
}

/* CTA按钮 */
.nav-cta {
  background: var(--gradient-1);
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 24px !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  transition: background var(--transition), transform 0.2s !important;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--gradient-1) !important;
  transform: translateY(-1px);
  color: #fff !important;
}

/* 汉堡菜单 */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单 */
.nav-mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(13, 17, 23, 0.98);
  backdrop-filter: blur(20px);
  overflow-y: auto;
  padding: 24px;
  z-index: 999;
}

.nav-mobile.active {
  display: block;
}

.nav-mobile-item {
  border-bottom: 1px solid var(--border-color);
}

.nav-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
}

.nav-mobile-link .arrow {
  transition: transform var(--transition);
}

.nav-mobile-item.open > .nav-mobile-link .arrow {
  transform: rotate(180deg);
}

.nav-mobile-sub {
  display: none;
  padding: 8px 0 16px 16px;
}

.nav-mobile-item.open > .nav-mobile-sub {
  display: block;
}

.nav-mobile-sub a {
  display: block;
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.nav-mobile-sub a:hover {
  color: var(--accent);
}

/* ─────────────────────────────────────────────
   5. Banner 轮播（Swiper）
   ───────────────────────────────────────────── */
.banner {
  position: relative;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
  margin-top: 0;
}

.banner-swiper {
  width: 100%;
  height: 100%;
}

.banner-swiper .swiper-slide {
  position: relative;
  width: 100%;
  height: 100%;
}

.banner-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Swiper 分页器样式 */
.banner-swiper .swiper-pagination {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.banner-swiper .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  opacity: 1;
}

.banner-swiper .swiper-pagination-bullet-active {
  background: var(--accent);
  width: 28px;
  border-radius: 4px;
}

/* Swiper 导航箭头样式 */
.banner-swiper .swiper-button-prev,
.banner-swiper .swiper-button-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  transition: background 0.3s ease;
}

.banner-swiper .swiper-button-prev:hover,
.banner-swiper .swiper-button-next:hover {
  background: rgba(255, 255, 255, 0.2);
}

.banner-swiper .swiper-button-prev::after,
.banner-swiper .swiper-button-next::after {
  font-size: 18px;
  font-weight: bold;
}

/* Swiper 淡入淡出效果 */
.banner-swiper .swiper-slide {
  opacity: 0;
  transition: opacity 0.8s ease;
}

.banner-swiper .swiper-slide-active {
  opacity: 1;
}

.banner-slide-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13, 17, 23, 0.85) 0%,
    rgba(13, 17, 23, 0.5) 50%,
    rgba(13, 17, 23, 0.7) 100%
  );
}

.banner-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 24px;
}

.banner-badge {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(88, 166, 255, 0.15);
  border: 1px solid rgba(88, 166, 255, 0.3);
  border-radius: 24px;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.banner-title {
  font-size: clamp(20px, 3vw, 38px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  max-width: 900px;
}

.banner-title .highlight {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: clamp(20px, 3vw, 38px);
}

.banner-subtitle {
  font-size: clamp(16px, 2.5vw, 22px);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 40px;
  max-width: 680px;
  line-height: 1.6;
}

.banner-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}
.banner-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.banner-stat-item {
  text-align: center;
  min-width: 80px;
}

.banner-stat-number {
  display: block;
  font-size: clamp(18px, 2.5vw, 28px);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.banner-stats .stat-number {
  font-size: clamp(22px, 3vw, 36px);
}

.banner-stat-label {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(88, 166, 255, 0.3);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: #6e5ce7;
  background: rgba(108, 92, 231, 0.1);
  color: #fff;
}

.btn-cta {
  background: var(--gradient-1);
  color: #fff;
}

.btn-cta:hover {
  background: var(--gradient-1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(240, 136, 62, 0.3);
  color: #fff;
}

/* ─────────────────────────────────────────────
   6. 数据统计区
   ───────────────────────────────────────────── */
.stats {
  padding: 60px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat-item {
  padding: 16px;
}

.stat-icon {
  font-size: 32px;
  margin-bottom: 12px;
  display: block;
}

.stat-number {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  background: linear-gradient(135deg, #6C5CE7, #00D2FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-unit {
  font-size: 0.55em;
  font-weight: 600;
  color: var(--accent);
  opacity: 0.8;
}

.stat-label {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ─────────────────────────────────────────────
   7. 展会简介
   ───────────────────────────────────────────── */
.about-intro {
  overflow: hidden;
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: center;
}

.about-intro-text p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 16px;
}

.about-intro-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.highlight-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.highlight-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(88, 166, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

.highlight-item h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.highlight-item p {
  font-size: 13px;
  color: var(--text-secondary);
}

.about-intro-image {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 1px solid var(--border-color);
}

.about-intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─────────────────────────────────────────────
   8. 展品范围
   ───────────────────────────────────────────── */
.exhibits-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

@media (max-width: 1199px) {
  .exhibits-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 991px) {
  .exhibits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .exhibits-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .exhibits-grid {
    grid-template-columns: 1fr;
  }
}

.exhibit-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.exhibit-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 12px 40px rgba(88, 166, 255, 0.15);
}

.exhibit-card-img {
  width: 100%;
  overflow: hidden;
}

.exhibit-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;   /* 图片填充满容器，保持比例裁切多余部分 */
  object-position: center;
  transition: transform 0.5s ease;
}

.exhibit-card:hover .exhibit-card-img img {
  transform: scale(1.08);
}

.exhibit-card-body {
  padding: 16px;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}



.exhibit-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.exhibit-card-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ─────────────────────────────────────────────
   9. 优势亮点
   ───────────────────────────────────────────── */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-card {
  padding: 36px 28px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.advantage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.advantage-card:hover {
  border-color: rgba(88, 166, 255, 0.3);
  transform: translateY(-4px);
}

.advantage-card:hover::before {
  opacity: 1;
}

.advantage-icon {
  border-radius: 5px;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.advantage-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ─────────────────────────────────────────────
   10. 同期论坛
   ───────────────────────────────────────────── */
.forum-section {
  background: var(--bg-secondary);
}

.forum-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  justify-content: center;
}

.forum-tab {
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition);
}

.forum-tab:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.forum-tab.active {
  background: rgba(88, 166, 255, 0.12);
  color: var(--accent);
  border-color: var(--accent);
}

.forum-panels {
  position: relative;
}

.forum-panel {
  display: none;
}

.forum-panel.active {
  display: block;
}

.forum-detail {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.forum-detail h3 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.forum-detail p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
}

.forum-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}

.forum-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.forum-meta-item strong {
  color: var(--text-primary);
}

.forum-detail-img {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
}

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

/* ─────────────────────────────────────────────
   11. 媒体支持
   ───────────────────────────────────────────── */
.media-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.media-logo {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.media-logo img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.media-logo:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

/* ─────────────────────────────────────────────
   11.5 往届展商
   ───────────────────────────────────────────── */
.exhibitor-carousel {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.exhibitor-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: exhibitor-left 160s linear infinite;
}

.exhibitor-track--right {
  animation-name: exhibitor-right;
  animation-duration: 90s;
}

.exhibitor-track--slow {
  animation-duration: 220s;
}

.exhibitor-carousel:hover .exhibitor-track {
  animation-play-state: paused;
}

@keyframes exhibitor-left {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes exhibitor-right {
  0%   { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}
.exhibitor-logo {
  flex-shrink: 0;
  width: 160px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.exhibitor-logo img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  z-index: 1;
}

.exhibitor-name {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
}

.exhibitor-logo:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  border-color: rgba(88, 166, 255, 0.5);
  /*background: rgba(255, 255, 255, 0.08);*/
}

.exhibitor-logo:hover .exhibitor-name {
  color: #fff;
}
/* ─────────────────────────────────────────────
   12. CTA 区域
   ───────────────────────────────────────────── */
.cta-section {
  background: linear-gradient(135deg, #0d2b4a 0%, #0d1117 50%, #0a1628 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(88, 166, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -50%;
  right: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(240, 136, 62, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section .section-title {
  font-size: clamp(28px, 4vw, 44px);
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

/* ─────────────────────────────────────────────
   13. Footer（三列布局）
   ───────────────────────────────────────────── */
.footer {
  background: #080c12;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr 1.2fr;
  gap: 25px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  align-items: start;
}

/* ── 左：主办单位 Logo ── */
.footer-logos {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  align-self: end;
}

.footer-logos-img {
  /*max-width: 260px;*/
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

/* ── 中：联系我们 Tab ── */
.footer-contact-tabs {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.footer-tab-nav {
  display: flex;
  gap: 6px;
  padding: 4px;
  width: fit-content;
}

.footer-tab-btn {
  padding: 8px 20px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.footer-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.footer-tab-btn.active {
  background: rgba(88, 166, 255, 0.18);
  color: var(--accent);
  font-weight: 600;
}

.footer-tab-content {
  flex: 1;
}

.footer-tab-panel {
  display: none;
}

.footer-tab-panel.active {
  display: block;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-contact-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(88, 166, 255, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.footer-contact-text {
  font-size: 20px;
  color: var(--text-primary);
}

/* ── 右：官方微信（3个二维码横排） ── */
.footer-wechat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.footer-wechat-qrs {
  display: flex;
  gap: 5px;
}

.footer-wechat-qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-wechat-qr {
  width: 120px;
  height: 120px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-wechat-qr img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.footer-wechat-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ── 底部版权栏 ── */
.footer-bottom {
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 12px;
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

/* ─────────────────────────────────────────────
   14. 内页页标题区
   ───────────────────────────────────────────── */
.page-header {
  padding: 160px 0 60px;
  background: var(--bg-secondary);
  /*border-bottom: 1px solid var(--border-color);*/
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  /*content: '';*/
  /*position: absolute;*/
  /*top: 0;*/
  /*left: 0;*/
  /*right: 0;*/
  /*bottom: 0;*/
  /*background: radial-gradient(ellipse at 50% 0%, rgba(88, 166, 255, 0.06) 0%, transparent 60%);*/
  /*pointer-events: none;*/
  content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(108, 92, 231, 0.12) 0%, transparent 50%), radial-gradient(circle at 70% 50%, rgba(0, 210, 255, 0.08) 0%, transparent 50%);
    animation: rotateBg 20s linear infinite;
}
 @keyframes rotateBg {
     from {
    transform: rotate(0deg);
    }
    to {
    	transform: rotate(360deg);
    }
}
.page-header .breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.page-header .breadcrumb a {
  color: var(--text-muted);
}

.page-header .breadcrumb a:hover {
  color: var(--accent);
}

.page-header .breadcrumb span {
  color: var(--accent);
}

.page-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  position: relative;
}

.page-header p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* ─────────────────────────────────────────────
   15. 内容卡片
   ───────────────────────────────────────────── */
.content-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 36px;
}

.contact-intro {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 16px;
}

.contact-label {
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 70px;
  flex-shrink: 0;
}

.contact-value {
  color: var(--text-primary);
}

.contact-value a {
  color: var(--accent);
}

.contact-value a:hover {
  color: var(--accent-hover);
}
.content-card h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.content-card p,
.content-card li {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}
/* ─────────────────────────────────────────────
   15. 主办单位页面 — 分类布局
   ───────────────────────────────────────────── */
.organizer-section {
  margin-bottom: 48px;
}

.organizer-section:last-child {
  margin-bottom: 0;
}

.organizer-section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(88, 166, 255, 0.3);
}

.organizer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.organizer-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  border: 1px dashed var(--border-color);
  background: transparent;
}

.organizer-grid:empty {
  min-height: 60px;
}
/* ─────────────────────────────────────────────
   16. 表单样式
   ───────────────────────────────────────────── */
/* 参展申请页顶部配图 */
.apply-banner {
  margin-bottom: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  line-height: 0;
}

.apply-banner img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius);
}

.form-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 48px;
}

.form-section h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-section > p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 15px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-grid .full-width {
  grid-column: 1 / -1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236e7681' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--accent);
}

.form-submit {
  margin-top: 8px;
}

.form-submit .btn {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  justify-content: center;
}

/* 表单提交成功提示 */
.form-success {
  display: none;
  text-align: center;
  padding: 60px 24px;
}

.form-success.show {
  display: block;
}

.form-success-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(63, 185, 80, 0.1);
  border: 2px solid var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 36px;
  color: var(--success);
}

.form-success h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.form-success p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 32px;
}

/* ─────────────────────────────────────────────
   19. 展商须知列表
   ───────────────────────────────────────────── */
.notice-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.notice-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.notice-item:hover {
  border-color: var(--accent);
}

.notice-num {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(88, 166, 255, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
}

.notice-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.notice-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ─────────────────────────────────────────────
   19. 新闻列表
   ───────────────────────────────────────────── */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.news-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-tertiary);
}

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

.news-card:hover .news-img img {
  transform: scale(1.05);
}

.news-body {
  padding: 20px;
}

.news-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.news-tag {
  color: var(--accent);
  font-weight: 600;
}

.news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-title a {
  color: inherit;
}

.news-title a:hover {
  color: var(--accent);
}

.news-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─────────────────────────────────────────────
   19-B. 新闻分类筛选
   ───────────────────────────────────────────── */
.news-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.news-filter-btn {
  padding: 7px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.news-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.news-filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ─────────────────────────────────────────────
   19-C. 分页
   ───────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  list-style: none;
  margin: 56px 0 0;
  padding: 0;
}

.pagination li a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
}

.pagination li a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pagination li.active a {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.pagination li.disabled a {
  opacity: 0.4;
  pointer-events: none;
  cursor: default;
}



/* ─────────────────────────────────────────────
   19-D. 新闻详情页
   ───────────────────────────────────────────── */
.page-header-sm {
  padding: 24px 0 0;
}

.page-header-sm + .section.section-tight {
  padding-top: 32px;
}

.section-tight {
  padding: 40px 0 80px;
}

.news-detail-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

/* 文章主体 */
.news-article {
  min-width: 0;
}

.article-header {
  margin-bottom: 28px;
}

.article-meta-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.article-date,
.article-views {
  font-size: 13px;
  color: var(--text-muted);
}

.article-views {
  display: flex;
  align-items: center;
  gap: 4px;
}

.article-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 20px;
}

.article-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.author-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.author-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.author-role {
  font-size: 12px;
  color: var(--text-muted);
}

.article-cover {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  aspect-ratio: 16/7;
  background: var(--bg-tertiary);
}

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

/* 正文排版 */
.article-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: 20px;
}
.article-body p img{
  display: block;
  margin: 0 auto;
}

.article-body h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 36px 0 14px;
  padding-left: 14px;
  border-left: 3px solid var(--accent);
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 20px;
  padding: 0;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.article-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  background: var(--bg-secondary);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
  font-size: 15px;
  line-height: 1.8;
}

.article-body blockquote cite {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-muted);
  font-style: normal;
}

/* 标签 */
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.article-tag-label {
  font-size: 13px;
  color: var(--text-muted);
}

.article-tag {
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  font-size: 12px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.article-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* 分享 */
.article-share {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.share-label {
  font-size: 13px;
  color: var(--text-muted);
}

.share-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition);
}

.share-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.share-btn-wechat:hover {
  border-color: #07c160;
  color: #fff;
  background: #07c160;
}

.share-btn-wechat:hover svg {
  fill: #fff;
}

/* 上下篇 */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.article-nav-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all var(--transition);
}

.article-nav-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.article-nav-next {
  text-align: right;
}

.nav-direction {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

.article-nav-next .nav-direction {
  justify-content: flex-end;
}

.nav-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─────────────────────────────────────────────
   19-E. 新闻详情侧边栏
   ───────────────────────────────────────────── */
.news-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + 20px);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 14px;
  transition: all var(--transition);
  text-decoration: none;
}

.sidebar-back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.sidebar-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
}

.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sidebar-news-item {
  list-style: none;
}

.sidebar-news-link {
  display: flex;
  gap: 12px;
  text-decoration: none;
}

.sidebar-news-link:hover .sidebar-news-title {
  color: var(--accent);
}

.sidebar-news-img {
  width: 72px;
  height: 52px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-tertiary);
}

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

.sidebar-news-info {
  flex: 1;
  min-width: 0;
}

.sidebar-news-title {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.sidebar-news-date {
  font-size: 11px;
  color: var(--text-muted);
}

/* 侧边栏 CTA */
.sidebar-cta {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(31, 111, 235, 0.15) 100%);
  border: 1px solid var(--accent-dark);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.sidebar-cta-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(88, 166, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  color: var(--accent);
}

.sidebar-cta h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.sidebar-cta p {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* 侧边栏联系 */
.sidebar-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
}

.sidebar-contact-item svg {
  color: var(--accent);
  flex-shrink: 0;
}

/* ─────────────────────────────────────────────
   20. 图库
   ───────────────────────────────────────────── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.gallery-item {
  aspect-ratio: 16/9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-tertiary);
  cursor: pointer;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item::after {
  content: '🔍';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity var(--transition);
  font-size: 24px;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ─────────────────────────────────────────────
   21. 联系我们页面
   ───────────────────────────────────────────── */
/* 详细信息区域 */
.contact-detail-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.contact-section-title {
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 20px;
  font-weight: 600;
}

/* 办公地址 */
.contact-offices {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.office-card {
  padding: 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.office-card:hover {
  border-color: var(--accent);
}

.office-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(88, 166, 255, 0.1);
  color: var(--accent);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.office-card h4 {
  font-size: 15px;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.office-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 展馆图片 */
.contact-venue {
  display: flex;
  flex-direction: column;
}

.venue-image-wrapper {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 16px;
}

.venue-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.venue-info {
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.venue-info p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.venue-info p:last-child {
  margin-bottom: 0;
}

/* 微信公众号 */
.contact-wechat {
  max-width: 500px;
  margin: 0 auto;
}

.wechat-card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
}

.wechat-qr {
  width: 100px;
  height: 100px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.wechat-placeholder {
  font-size: 40px;
}

.wechat-info h3 {
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.wechat-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.wechat-desc {
  margin-top: 8px;
  font-size: 13px !important;
  color: var(--text-muted) !important;
}

/* ─────────────────────────────────────────────
   22. 面包屑
   ───────────────────────────────────────────── */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.breadcrumb-nav a {
  color: var(--text-muted);
}

.breadcrumb-nav a:hover {
  color: var(--accent);
}

.breadcrumb-nav .separator {
  /*color: var(--border-color);*/
}

/* ─────────────────────────────────────────────
   23. 动画
   ───────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }
.fade-in-delay-6 { transition-delay: 0.6s; }

/* ─────────────────────────────────────────────
   24. 响应式
   ───────────────────────────────────────────── */

/* Tablet */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .about-intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .exhibits-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .booth-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-logos {
    grid-column: 1 / -1;
    align-items: center;
    text-align: center;
  }

  .footer-logos-img {
    max-width: 220px;
  }

  .footer-wechat {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-detail-layout {
    grid-template-columns: 1fr;
  }

  .forum-detail {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .media-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .news-detail-layout {
    grid-template-columns: 1fr 280px;
    gap: 32px;
  }

  .article-title {
    font-size: 22px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --nav-height: 60px;
  }

  .section {
    padding: 56px 0;
  }

  .container {
    padding: 0 16px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .booth-grid {
    grid-template-columns: 1fr;
  }

  .contact-quick-grid {
    grid-template-columns: 1fr;
  }

  .wechat-card {
    flex-direction: column;
    text-align: center;
  }

  .stat-number {
    font-size: 32px;
  }

  .exhibits-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-logos {
    align-items: center;
    text-align: center;
  }

  .footer-logos-img {
    /*max-width: 200px;*/
    max-width: 100%;
  }

  .footer-tab-nav {
    width: 100%;
    justify-content: center;
  }

  .footer-wechat {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .media-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-intro-highlights {
    grid-template-columns: 1fr;
  }

  .forum-tabs {
    gap: 6px;
  }

  .forum-tab {
    padding: 8px 16px;
    font-size: 13px;
  }

  .form-section {
    padding: 24px;
  }

  .content-card {
    padding: 24px;
  }

  .form-row {
    flex-direction: column;
  }

  /* 新闻详情页移动端 */
  .news-detail-layout {
    grid-template-columns: 1fr;
  }

  .news-sidebar {
    position: static;
  }

  .article-title {
    font-size: 20px;
  }

  .article-nav {
    grid-template-columns: 1fr;
  }

  .article-nav-next {
    text-align: left;
  }

  .article-nav-next .nav-direction {
    justify-content: flex-start;
  }

  /* 分页 */
  .pagination {
    gap: 4px;
  }

  .pagination li a {
    min-width: 34px;
    height: 34px;
    font-size: 13px;
  }
}

/* ─────────────────────────────────────────────
   25. 工具类
   ───────────────────────────────────────────── */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-accent { color: var(--accent); }
.text-cta { color: var(--cta); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
}

/* 隐藏/显示 */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ─────────────────────────────────────────────
   26. 微信分享弹窗
   ───────────────────────────────────────────── */
.wechat-modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.wechat-modal-mask.active {
  opacity: 1;
  pointer-events: all;
}

.wechat-modal-box {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  margin: 20px;
  box-shadow: var(--shadow-lg);
  transform: translateY(12px) scale(0.97);
  transition: transform 0.25s ease;
}

.wechat-modal-mask.active .wechat-modal-box {
  transform: translateY(0) scale(1);
}

.wechat-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.wechat-modal-close:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.wechat-modal-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.wechat-modal-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #07c160, #00a650);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.wechat-modal-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.wechat-modal-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.wechat-qr-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.wechat-qr-wrap {
  width: 200px;
  height: 200px;
  padding: 10px;
  background: var(--bg-card);
  border: 2px solid var(--border-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 覆盖 qrcode.js 默认样式 */
.wechat-qr-wrap canvas,
.wechat-qr-wrap img {
  border-radius: 4px;
}

.wechat-qr-tip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

.wechat-qr-tip svg {
  flex-shrink: 0;
  color: var(--accent);
}

.wechat-modal-url {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.wechat-url-text {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.wechat-copy-btn {
  flex-shrink: 0;
  padding: 6px 14px;
  border-radius: 6px;
  background: var(--accent-dark);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background var(--transition);
}

.wechat-copy-btn:hover {
  background: var(--accent);
}

/* ─────────────────────────────────────────────
   27. 复制成功 Toast
   ───────────────────────────────────────────── */
.copy-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 10px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow);
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.copy-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
/* ─────────────────────────────────────────────
   28. 新闻动态模块
   ───────────────────────────────────────────── */
.news-layout {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 40px;
  align-items: start;
}

/* 左侧预览区 */
.news-preview {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: border-color var(--transition);
}

.news-preview:hover {
  border-color: var(--accent);
}

.news-preview-img {
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.news-preview-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.news-preview:hover .news-preview-img img {
  transform: scale(1.03);
}

.news-preview-body {
  padding: 24px;
}

.news-preview-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-preview-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-preview-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.news-preview-more:hover {
  color: var(--accent-hover);
}

/* 右侧面板 */
.news-panel {
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

/* TAB切换 */
.news-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.news-tab {
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -1px;
}

.news-tab:hover {
  color: var(--text-primary);
}

.news-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 新闻列表 */
.news-list {
  display: none;
  flex-direction: column;
}

.news-list.active {
  display: flex;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background 0.2s;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item:hover {
  background: rgba(88, 166, 255, 0.05);
  padding-left: 8px;
  padding-right: 8px;
  margin: 0 -8px;
  border-radius: 6px;
}

.news-item:hover .news-title-text {
  color: var(--accent);
}

.news-date {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-muted);
  min-width: 80px;
}

.news-title-text {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  transition: color var(--transition);
}

/* 查看更多 */
.news-more {
  margin-top: 12px;
  text-align: right;
}

/* 移动端 */
@media (max-width: 768px) {
  .news-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }

  /* 移动端隐藏左侧预览区 */
  .news-preview {
    display: none;
  }

  .news-panel {
    width: 100%;
  }

  .news-item {
    padding: 12px 0;
  }

  .news-date {
    min-width: 70px;
    font-size: 11px;
  }

  .news-title-text {
    font-size: 13px;
  }
  /* 主办单位页面移动端 */
  .organizer-grid {
    grid-template-columns: 1fr;
  }

  .organizer-section {
    margin-bottom: 32px;
  }
}