/* ========================================
   定制高端服饰 - 样式表
   www.gaoduanfuzhuang.cn
   ======================================== */

/* CSS 变量定义 */
:root {
  /* 主色调 - 深灰/黑色系，体现高端质感 */
  --color-primary: #1a1a1a;
  --color-secondary: #2d2d2d;
  --color-accent: #c9a962;
  --color-accent-light: #d4b978;

  /* 文字颜色 */
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-white: #ffffff;

  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f8f8;
  --bg-dark: #1a1a1a;

  /* 边框 */
  --border-color: #e5e5e5;
  --border-accent: #c9a962;

  /* 间距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* 字体 */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;

  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

  /* 过渡 */
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--bg-primary);
}

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

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

ul, ol {
  list-style: none;
}

/* ========================================
   布局容器
   ======================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

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

/* ========================================
   头部导航
   ======================================== */

.header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 2px;
}

.logo span {
  color: var(--color-accent);
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav a {
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 0.25rem 0;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: var(--transition);
}

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

.nav a:hover::after {
  width: 100%;
}

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

.nav a.active::after {
  width: 100%;
}

/* ========================================
   面包屑导航
   ======================================== */

.breadcrumb {
  background-color: var(--bg-secondary);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

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

.breadcrumb-current {
  color: var(--color-text);
}

/* ========================================
   Hero 区域
   ======================================== */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 4px;
  margin-bottom: var(--spacing-sm);
}

.hero-title span {
  color: var(--color-accent);
  font-weight: 500;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--spacing-lg);
  letter-spacing: 1px;
}

.hero-desc {
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
}

/* ========================================
   按钮样式
   ======================================== */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-light);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

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

.btn-dark:hover {
  background-color: var(--color-secondary);
}

/* ========================================
   区块标题
   ======================================== */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-title {
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 2px;
  margin-bottom: var(--spacing-xs);
}

.section-title span {
  color: var(--color-accent);
}

.section-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  letter-spacing: 1px;
}

/* ========================================
   服务分类卡片
   ======================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.service-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-accent);
}

.service-title {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  letter-spacing: 1px;
}

.service-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ========================================
   内容列表
   ======================================== */

.content-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.content-item {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-lg);
  transition: var(--transition);
}

.content-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.content-image {
  width: 200px;
  height: 150px;
  background-color: var(--bg-secondary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.content-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content-category {
  font-size: 0.75rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-xs);
}

.content-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

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

.content-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
  flex: 1;
}

.content-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ========================================
   三栏内容区
   ======================================== */

.three-col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.col-section {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.col-header {
  background-color: var(--bg-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.col-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.col-list {
  padding: var(--spacing-sm);
}

.col-item {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

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

.col-item a {
  color: var(--color-text);
  display: block;
}

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

/* ========================================
   文章详情页
   ======================================== */

.article-header {
  text-align: center;
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: var(--spacing-xl);
}

.article-category {
  font-size: 0.8rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.article-title {
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
}

.article-content p {
  margin-bottom: var(--spacing-md);
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-primary);
  margin: var(--spacing-xl) 0 var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-accent);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-primary);
  margin: var(--spacing-lg) 0 var(--spacing-sm);
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

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

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

.article-content li {
  margin-bottom: var(--spacing-xs);
}

.article-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--spacing-md);
  margin: var(--spacing-md) 0;
  color: var(--color-text-light);
  font-style: italic;
}

/* ========================================
   特色工艺展示
   ======================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-number {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--color-accent);
  margin-bottom: var(--spacing-xs);
}

.feature-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  letter-spacing: 1px;
}

/* ========================================
   404 页面
   ======================================== */

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxl) 0;
}

.error-code {
  font-size: 8rem;
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--spacing-md);
}

.error-title {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 2px;
}

.error-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

/* ========================================
   页脚
   ======================================== */

.footer {
  background-color: var(--bg-dark);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-desc {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}

.footer-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-white);
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
}

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

.footer-contact li {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--spacing-xs);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 1024px) {
  .services-grid,
  .three-col-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 768px) {
  :root {
    --spacing-xxl: 3rem;
    --spacing-xl: 2rem;
  }

  .header-inner {
    height: 60px;
  }

  .nav {
    display: none;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .services-grid,
  .three-col-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .content-item {
    flex-direction: column;
  }

  .content-image {
    width: 100%;
    height: 200px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .article-meta {
    flex-direction: column;
    gap: var(--spacing-xs);
  }

  .error-code {
    font-size: 5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
  }
}