/* 现代化重置和基础样式 */
:root {
  --primary-color: #2a4365; 
  --accent-color: #c53030; 
  --text-color: #2d3748;
  --gradient-bg: linear-gradient(145deg, #f7fafc 0%, #edf2f7 100%);
}



body {
  background: var(--gradient-bg);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  margin: 0;
  min-height: 100vh;
}

/* 现代容器布局 */
.main_content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1rem;
  position: relative;
}

/* 视频横幅现代化改造 */
.video-container {
  position: relative;
  height: 80vh;
  overflow: hidden;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.9);
}

.video-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  text-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(4px);
  padding: 2rem;
  border-radius: 1rem;
  background: rgba(0, 0, 0, 0.3);
}

.video-overlay h1 {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.video-overlay p {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* 现代化导航按钮 */
.nf_hp_kv .btn_prev,
.nf_hp_kv .btn_next {
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.nf_hp_kv .btn_prev:hover,
.nf_hp_kv .btn_next:hover {
  background: white;
  transform: translateY(-50%) scale(1.1);
}

.nf_hp_kv .btn_prev {
  left: 2rem;
}

.nf_hp_kv .btn_next {
  right: 2rem;
}

.nf_hp_kv .btn_prev a,
.nf_hp_kv .btn_next a {
  position: relative;
  display: block;
  height: 100%;
}

.nf_hp_kv .btn_prev a::before,
.nf_hp_kv .btn_next a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-left: 3px solid var(--primary-color);
  border-bottom: 3px solid var(--primary-color);
  transform: translate(-50%, -50%) rotate(45deg);
}

.nf_hp_kv .btn_next a::before {
  transform: translate(-50%, -50%) rotate(-135deg);
}

/* 现代化公告栏 */
.notice {
  background: white;
  padding: 1rem;
  margin: 2rem 0;
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.noticecon {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.noticecon marquee {
  flex: 1;
  color: var(--accent-color);
  font-weight: 500;
}

/* 现代化搜索框 */
.search input[type="text"] {
  padding: 0.75rem;
  border: 2px solid #e2e8f0;
  border-radius: 0.5rem;
  transition: border-color 0.3s ease;
}

.search input[type="text"]:focus {
  border-color: var(--primary-color);
  outline: none;
}

.search .button {
  background: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  transition: transform 0.2s ease;
}

.search .button:hover {
  transform: translateY(-1px);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .video-container {
    height: 60vh;
  }

  .video-overlay h1 {
    font-size: 2.5rem;
  }

  .video-overlay p {
    font-size: 1.2rem;
  }

  .nf_hp_kv .btn_prev,
  .nf_hp_kv .btn_next {
    width: 40px;
    height: 40px;
  }
}