/* 通用样式文件 - Syitren 官方网站 */

/* 动画定义 */
@keyframes fadeInOut {
  0% { opacity: 0; transform: translateY(-20px); }
  20% { opacity: 1; transform: translateY(0); }
  80% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-20px); }
}

@keyframes arrowFloatLR {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(-8px); }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}


@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

@keyframes transitionContentFadeIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

/* 基础重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: white;
  color: #333;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 0;
}

/* 头部样式 */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100px;
  padding: 0 40px;
  background: transparent;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  flex-shrink: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;
  box-shadow: none;
  transition: all 0.3s ease;
}

.brand-logo {
  display: flex;
  align-items: center;
  position: relative;
  cursor: pointer;
}

.brand-logo img {
  height: 80px;
  width: auto;
  transition: all 0.3s ease;
  filter: brightness(0) invert(1);
}

/* 第二张轮播图时logo变黑色 */
.header.light-slide .brand-logo img {
  filter: none;
}

/* 品牌新闻页面logo变黑色 */
.news-page .header .brand-logo img {
  filter: none;
}

.brand-logo:hover {
  transform: scale(1.05);
  transition: all 0.3s ease;
}

.brand-logo:hover img {
  filter: brightness(1.1) contrast(1.1);
  transition: all 0.3s ease;
}

.nav-links {
  display: flex;
  gap: 50px;
  align-items: center;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
}

/* 第二张轮播图时文字变黑色 */
.header.light-slide .nav-links a {
  color: #000;
}

/* 品牌新闻页面文字变黑色 */
.news-page .header .nav-links a {
  color: #000;
}

.nav-links a:hover {
  color: #FF6B35;
  transform: translateY(-2px);
}

/* 第二张轮播图时悬停仍为橙色 */
.header.light-slide .nav-links a:hover {
  color: #FF6B35;
}

/* 品牌新闻页面悬停仍为橙色 */
.news-page .header .nav-links a:hover {
  color: #FF6B35;
}


.nav-links a[href="project.html"] {
  color: #fff;
  font-weight: 600;
  position: relative;
  transition: all 0.3s ease;
}

.nav-links a[href="project.html"]:hover {
  color: #FF6B35;
  transform: translateY(-2px);
}

.nav-links a[href="#"]:hover {
  color: #FF6B35;
  transform: translateY(-2px);
}

/* 导航链接下划线效果 */
.nav-links a[href="project.html"]::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 3px;
  background: #FF6B35;
  transform: scaleX(0);
  transition: transform 0.3s ease;
  border-radius: 2px;
}

.nav-links a[href="project.html"]:hover::after {
  width: 100%;
  transform: scaleX(1);
}





/* 主要内容区域 */
.main-content {
  position: relative;
  flex: 1;
  overflow: visible;
  z-index: 1;
  padding-top: 0;
  margin-top: 0 !important;
}

/* 所有页面的内容区域上边距都为0 */
body:not(.home-page):not(.news-page) .main-content {
  margin-top: 0 !important;
}

/* 新闻页面特殊处理 - 取消上边距 */
body.news-page .main-content {
  margin-top: 0 !important;
}

/* 底部信息 */
.footer {
  position: relative;
  text-align: center;
  padding: 20px 0;
  z-index: 10;
  margin-top: 20px;
}

.copyright {
  font-size: 12px;
  color: #666;
  font-style: italic;
  font-weight: bold;
}


/* 语言切换按钮样式 */
.language-toggle-btn {
  background: transparent;
  border: 2px solid #fff;
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  font-family: "Futura", "Futura PT", "Futura Std", sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
  min-width: 50px;
  text-align: center;
}

/* 第二张轮播图时语言按钮变黑色 */
.header.light-slide .language-toggle-btn {
  border-color: #000;
  color: #000;
}

/* 品牌新闻和技术支持页面语言按钮变白色 */
.news-page .header .language-toggle-btn,
.support-page .header .language-toggle-btn {
  border-color: #fff;
  color: #fff;
}

/* 产品页面语言按钮变黑色 */
.product-page .header .language-toggle-btn {
  border-color: #000;
  color: #000;
}

/* 项目页面语言按钮变黑色 */
.project-page .header .language-toggle-btn {
  border-color: #000;
  color: #000;
}

.language-toggle-btn:hover {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
  transform: translateY(-2px);
}

/* 第二张轮播图时语言按钮悬停仍为橙色 */
.header.light-slide .language-toggle-btn:hover {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

/* 品牌新闻和技术支持页面语言按钮悬停仍为橙色 */
.news-page .header .language-toggle-btn:hover,
.support-page .header .language-toggle-btn:hover {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

/* 产品页面语言按钮悬停仍为橙色 */
.product-page .header .language-toggle-btn:hover {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

/* 项目页面语言按钮悬停仍为橙色 */
.project-page .header .language-toggle-btn:hover {
  background: #FF6B35;
  color: #fff;
  border-color: #FF6B35;
}

.language-toggle-btn:active {
  transform: translateY(0);
}

.lang-text {
  display: inline-block;
  transition: all 0.3s ease;
}


/* 修复recruit悬停效果 Mon Sep  8 00:40:21 CST 2025 */
/* 修复重复CSS规则 Mon Sep  8 00:41:07 CST 2025 */
/* 强制应用recruit红色下划线 Mon Sep  8 00:43:34 CST 2025 */