/* 全站基础样式 - 整合版 */
/* 整合了 design-system.css, base.css, layout.css, components.css, brand-enhanced.css */

/* ===== CSS变量定义 ===== */
:root {
  /* 颜色系统 */
  --primary-color: #8B4513;
  --primary-light: #D2691E;
  --primary-dark: #5D2F0A;
  --secondary-color: #654321;
  --accent-color: #CD853F;
  
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --text-inverse: #ffffff;
  
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-light: #f1f3f4;
  --bg-dark: #333333;
  
  /* 透明度层级 */
  --transparency-ultra-light: rgba(255, 255, 255, 0.12);
  --transparency-light: rgba(255, 255, 255, 0.15);
  --transparency-medium: rgba(255, 255, 255, 0.82);
  --transparency-strong: rgba(255, 255, 255, 0.88);
  --transparency-heavy: rgba(255, 255, 255, 0.93);
  --transparency-solid: rgba(255, 255, 255, 0.95);
  --transparency-hover: rgba(255, 255, 255, 0.98);
  
  /* 模糊效果 */
  --blur-light: blur(6px);
  --blur-medium: blur(8px);
  --blur-strong: blur(10px);
  --blur-heavy: blur(12px);
  --blur-ultra: blur(15px);
  
  /* 边框颜色 */
  --border-light: rgba(255, 255, 255, 0.2);
  --border-medium: rgba(255, 255, 255, 0.3);
  --border-strong: rgba(255, 255, 255, 0.4);
  
  /* 间距系统 */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* 字体系统 */
  --font-family-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-serif: Georgia, 'Times New Roman', Times, serif;
  --font-family-mono: 'SFMono-Regular', Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  
  --font-size-xs: 0.8rem;
  --font-size-sm: 0.925rem;
  --font-size-base: 1.1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.4rem;
  --font-size-2xl: 1.65rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.4rem;
  
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* 圆角系统 */
  --radius-sm: 0.125rem;
  --radius-base: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* 阴影系统 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* 过渡系统 */
  --transition-base: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s ease;
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index系统 */
  --z-hide: -1;
  --z-base: 0;
  --z-docked: 10;
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-banner: 1200;
  --z-overlay: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;
  --z-toast: 1700;
  
  /* 容器尺寸 */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* ===== 基础重置 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family-sans);
  line-height: var(--line-height-normal);
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  overflow-x: hidden;
}

body {
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: inherit;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image: url('../images/网站背景图.png');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ===== 容器系统 ===== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

.container-fluid {
  width: 100%;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* ===== 页面结构 ===== */
.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: transparent;
}

.main-content {
  flex: 1;
  padding: 0;
  background-color: transparent;
}

.unified-content-container {
  background: transparent;
  position: relative; /* 侧边装饰定位参考 */
}

/* 侧边细竖线 + 浅水印纹样（全局轻量装饰） */
.unified-content-container::before,
.unified-content-container::after{
  content: "";
  position: absolute;
  top: var(--space-2xl);
  bottom: var(--space-2xl);
  width: 180px; /* 用于放置淡水印，同时最右侧/最左侧呈现 2px 渐隐细线 */
  pointer-events: none;
  opacity: .35; /* 总体淡化 */
}

/* 左侧：线在最右边，水印在中上位置 */
.unified-content-container::before{
  left: 0;
  /* 仅保留竹叶水印（去除细竖线） */
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 240' fill='none'><path d='M10 180 C40 130, 60 120, 110 90 C70 120, 50 140, 30 200' stroke='%238B4513' stroke-opacity='0.22' stroke-width='2'/><path d='M12 150 C50 110, 80 90, 110 70' stroke='%238B4513' stroke-opacity='0.18' stroke-width='3'/><path d='M16 205 C48 170, 78 150, 110 140' stroke='%238B4513' stroke-opacity='0.16' stroke-width='2'/></svg>"),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 240' fill='none'><path d='M8 140 C38 110, 66 92, 112 68' stroke='%238B4513' stroke-opacity='0.14' stroke-width='2'/><path d='M6 172 C42 138, 72 120, 110 102' stroke='%238B4513' stroke-opacity='0.12' stroke-width='2'/></svg>");
  background-size: 140px auto, 120px auto;          /* 两组线性竹叶 */
  background-position: 40% 24%, 26% 62%;            /* 一上一路，错位分布 */
  background-repeat: no-repeat, no-repeat;
}

/* 右侧：线在最左边，水印在中下位置（镜像感） */
.unified-content-container::after{
  right: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 240' fill='none'><path d='M110 60 C80 110, 60 120, 10 150 C50 120, 70 100, 90 40' stroke='%238B4513' stroke-opacity='0.22' stroke-width='2'/><path d='M108 90 C70 130, 40 150, 10 170' stroke='%238B4513' stroke-opacity='0.18' stroke-width='3'/><path d='M104 45 C72 80, 42 100, 10 110' stroke='%238B4513' stroke-opacity='0.16' stroke-width='2'/></svg>"),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 240' fill='none'><path d='M112 100 C82 128, 54 146, 8 168' stroke='%238B4513' stroke-opacity='0.14' stroke-width='2'/><path d='M114 70 C78 104, 48 122, 10 140' stroke='%238B4513' stroke-opacity='0.12' stroke-width='2'/></svg>");
  background-size: 140px auto, 120px auto;
  background-position: 60% 76%, 74% 34%;
  background-repeat: no-repeat, no-repeat;
}

@media (max-width: 1024px){
  .unified-content-container::before,
  .unified-content-container::after{ width: 140px; opacity: .3; }
  .unified-content-container::before{ background-size: 110px auto, 94px auto; }
  .unified-content-container::after{ background-size: 110px auto, 94px auto; }
}

@media (max-width: 768px){
  /* 移动端弱化装饰，避免干扰内容 */
  .unified-content-container::before,
  .unified-content-container::after{ width: 90px; opacity: .22; top: var(--space-xl); bottom: var(--space-xl); }
  .unified-content-container::before{ background-size: 80px auto, 62px auto; background-position: 50% 20%, 36% 70%; }
  .unified-content-container::after{ background-size: 80px auto, 62px auto; background-position: 50% 80%, 64% 30%; }
}

/* ===== 导航栏样式 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: transparent;
  border-bottom: none;
  box-shadow: none;
}

.nav-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-lg) var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  margin: var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-brand.nav-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 20px;
}

.nav-brand .logo {
  width: 112px;
  height: 90px;
  border-radius: 12px;
  object-fit: cover;
  margin-bottom: 15px;
  transition: transform 0.3s ease;
}

.nav-brand .logo:hover {
  transform: scale(1.05);
}

.brand-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.brand-text {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 2px;
  text-shadow: none;
  background: rgba(255, 255, 255, 0.05);
  padding: 8px 16px;
  border-radius: 8px;
}

.brand-motto {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  text-shadow: none;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 12px;
  border-radius: 6px;
  font-weight: 400;
  letter-spacing: 1px;
  font-style: italic;
}

.nav-menu.nav-bottom {
  display: flex;
  justify-content: center;
  gap: 30px;
  flex-wrap: wrap;
}

.nav-menu.nav-bottom .nav-link {
  padding: 12px 20px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-lg);
  border-radius: 8px;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
  background: rgba(255, 255, 255, 0.08);
  text-shadow: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-menu.nav-bottom .nav-link:hover,
.nav-menu.nav-bottom .nav-link.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ===== 页脚样式（首页风格）===== */
.horizontal-footer {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-primary);
  padding: var(--space-2xl) 0 var(--space-xl);
  margin-top: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-shadow: none;
}

.footer-container {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.footer-nav-section {
  margin-bottom: 2rem;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-column {
  margin-bottom: 1.5rem;
}

.column-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
  text-shadow: none;
}

.column-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.column-links li {
  margin-bottom: 1rem;
}

.column-links a {
  color: #333333;
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 1.1rem;
}

.column-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

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

/* ===== 联系服务与公众号布局 ===== */
.contact-service-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.contact-service-left {
  flex: 1;
}

.contact-service-right {
  flex-shrink: 0;
  margin-left: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ===== 公众号二维码样式 ===== */
.qr-code-container {
  text-align: center;
  padding: 0.3rem;
}

.qr-code {
  max-width: 80px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.qr-code:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.qr-code-text {
  margin-top: 0.3rem;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  font-weight: var(--font-weight-normal);
  line-height: 1.2;
}

/* ===== 页脚响应式优化 ===== */
@media (max-width: 768px) {
  .horizontal-footer {
    padding: var(--space-2xl) 0 var(--space-lg);
  }
  
  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  /* 移动端联系服务布局调整 */
  .contact-service-wrapper {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .contact-service-right {
    margin-left: 0;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
  }
  
  /* 移动端公众号二维码调整 */
  .qr-code {
    max-width: 60px;
  }
  
  .qr-code-text {
    font-size: 0.7rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .horizontal-footer {
    padding: var(--space-xl) 0 var(--space-md);
  }
  
  .footer-columns {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .column-title {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
  }
  
  .column-links a {
    font-size: var(--font-size-sm);
  }
  
  .footer-copyright {
    font-size: var(--font-size-xs);
  }
  
  .footer-links a {
    font-size: var(--font-size-xs);
  }
}

/* ===== 导航栏响应式优化 ===== */
@media (max-width: 768px) {
  .nav-container {
    padding: 8px 10px; /* 压缩导航容器内边距，提升首屏密度 */
    margin: 6px;      /* 减少与下方轮播的间距 */
  }
  
  .nav-menu.nav-bottom {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .nav-menu.nav-bottom .nav-link {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    text-align: center;
  }
  
  .brand-text {
    font-size: 1.5rem;
  }
  
  .brand-motto {
    font-size: 0.9rem;
    padding: 2px 8px; /* 收紧标语块的高度 */
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: var(--space-md) var(--space-xs);
    margin: var(--space-xs);
  }
  
  .nav-brand .logo {
    width: 60px;
    height: 60px;
  }
  
  .brand-text {
    font-size: 1.3rem;
    padding: 6px 12px;
  }
  
  .brand-motto {
    font-size: 0.8rem;
    padding: 3px 8px;
  }
  
  .nav-menu.nav-bottom {
    gap: var(--space-xs);
  }
  
  .nav-menu.nav-bottom .nav-link {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
  }
}

/* ===== 通用组件 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  color: white;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.card {
  background: var(--transparency-solid);

  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: var(--transition-base);
  box-shadow: var(--shadow-base);
}

.card:hover {
  background: var(--transparency-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);

}

/* ===== 响应式设计 ===== */
@media (max-width: 992px) {
  .nav-menu.nav-bottom {
    gap: 20px;
  }
  
  .nav-menu.nav-bottom .nav-link {
    padding: 10px 16px;
    font-size: 0.95rem;
  }
}

@media (max-width: 768px) {
  :root {
    --transparency-medium: rgba(255, 255, 255, 0.88);
    --transparency-strong: rgba(255, 255, 255, 0.92);
    --transparency-heavy: rgba(255, 255, 255, 0.96);
    --transparency-solid: rgba(255, 255, 255, 0.98);
  }
  
  .container {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }
  
  .brand-text {
    font-size: 1.6rem;
  }
  
  .brand-motto {
    font-size: 0.9rem;
  }
  
  .nav-menu.nav-bottom {
    gap: 15px;
  }
  
  .nav-menu.nav-bottom .nav-link {
    padding: 8px 12px;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  :root {
    --transparency-medium: rgba(255, 255, 255, 0.92);
    --transparency-strong: rgba(255, 255, 255, 0.95);
    --transparency-heavy: rgba(255, 255, 255, 0.98);
    --transparency-solid: rgba(255, 255, 255, 0.99);
  }
  
  .brand-text {
    font-size: 1.4rem;
    padding: 6px 12px;
  }
  
  .brand-motto {
    font-size: 0.85rem;
    padding: 3px 10px;
  }
  
  .footer-columns {
    grid-template-columns: 1fr;
  }
  
  .horizontal-footer {
    padding: 2rem 0 1rem;
  }
}