/* 全局重置与基础设置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #f8f6f2;
  --color-text: #2d2b29;
  --color-accent: #c4bfb9;
  --color-border: #e0dcd5;
  --font-primary: "Helvetica Neue", "思源黑体", "Source Han Sans SC", sans-serif;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* 布局容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* 导航栏 */
.navbar {
  display: flex;
  justify-content: center;
  padding: 1.5rem 0;
  background-color: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

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

/* 页脚 */
footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* 首页轮播图 */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  animation: fadeIn 1.2s ease-in-out forwards;
}

.hero .caption {
  position: relative;
  z-index: 10;
  text-align: center;
  color: white;
  background: rgba(0, 0, 0, 0.4);
  padding: 1rem 2rem;
  border-radius: 4px;
  font-size: 1.8rem;
  max-width: 800px;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* 内容区块 */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 3rem;
  font-weight: 300;
  letter-spacing: 1px;
}

/* 网格布局 */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.card img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.card:hover img {
  transform: scale(1.03);
}

.card-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 1rem;
  font-size: 1rem;
  text-align: center;
}

/* 引导文案 */
.cta {
  text-align: center;
  margin-top: 2rem;
}

.cta a {
  color: var(--color-accent);
  text-decoration: none;
  font-style: italic;
  transition: color 0.3s;
}

.cta a:hover {
  color: var(--color-text);
}

/* 系列灵感与美学细节页面 */
.content-section {
  margin-bottom: 4rem;
}

.content-section h3 {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  font-weight: 400;
}

.content-section p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.content-section img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* 返回首页链接 */
.back-home {
  display: inline-block;
  margin-top: 1rem;
  color: var(--color-accent);
  text-decoration: none;
  font-style: italic;
}

.back-home:hover {
  color: var(--color-text);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  .nav-links {
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero .caption {
    font-size: 1.4rem;
    padding: 0.8rem 1.5rem;
  }

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

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3rem 0;
  }
}