/* ===========================
   全局重置与基础样式
   ========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg-primary: #F8F9FA;
  --color-bg-secondary: #F5F5F5;
  --color-bg-accent: #F3E9E2;
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-accent-1: #2C3E50;
  --color-accent-2: #B3543A;
  --color-accent-3: #A3B18A;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  --transition-smooth: all 0.3s ease;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* ===========================
   导航栏
   ========================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(248, 249, 250, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1.5rem 5%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-1);
  letter-spacing: 2px;
}

.nav-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-text-primary);
  font-size: 1rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-2);
  transition: var(--transition-smooth);
}

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

/* ===========================
   轮播图
   ========================== */
.carousel-container {
  margin-top: 80px;
  position: relative;
  width: 100%;
  height: 90vh;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.carousel-caption {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  padding: 2rem;
  max-width: 800px;
}

.carousel-caption h2 {
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: 3px;
  margin-bottom: 1rem;
}

.carousel-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.dot.active {
  background: var(--color-accent-2);
  transform: scale(1.2);
}

/* ===========================
   容器与栅格
   ========================== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 5rem 5%;
}

.section-title {
  font-size: 2rem;
  font-weight: 300;
  text-align: center;
  margin-bottom: 1rem;
  letter-spacing: 2px;
  color: var(--color-accent-1);
}

.section-intro {
  max-width: 800px;
  margin: 0 auto 4rem;
  text-align: center;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ===========================
   卡片展示
   ========================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
  margin-bottom: 5rem;
}

.card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition-smooth);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.card-image {
  width: 100%;
  height: 450px;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: 2rem;
}

.card-content h3 {
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 1rem;
  color: var(--color-accent-1);
}

.card-content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ===========================
   网格布局（风格图鉴）
   ========================== */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 0.8rem 2rem;
  background: var(--color-bg-secondary);
  border: 2px solid transparent;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.filter-tab:hover,
.filter-tab.active {
  background: var(--color-accent-2);
  color: #fff;
  border-color: var(--color-accent-2);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 3/4;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  color: #fff;
  padding: 2rem;
  transform: translateY(100%);
  transition: var(--transition-smooth);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

.gallery-overlay h4 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.gallery-overlay p {
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ===========================
   图文交替布局（穿搭艺术）
   ========================== */
.styling-section {
  display: flex;
  gap: 4rem;
  align-items: center;
  margin-bottom: 6rem;
}

.styling-section:nth-child(even) {
  flex-direction: row-reverse;
}

.styling-image {
  flex: 1;
  border-radius: 8px;
  overflow: hidden;
}

.styling-image img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.styling-image:hover img {
  transform: scale(1.05);
}

.styling-content {
  flex: 1;
}

.styling-content h3 {
  font-size: 1.8rem;
  font-weight: 400;
  margin-bottom: 1.5rem;
  color: var(--color-accent-1);
}

.styling-content p {
  color: var(--color-text-secondary);
  line-height: 2;
  font-size: 1.05rem;
}

/* ===========================
   页脚
   ========================== */
.footer {
  background: var(--color-accent-1);
  color: #fff;
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

/* ===========================
   响应式设计
   ========================== */
@media (max-width: 968px) {
  .nav-links {
    gap: 1.5rem;
  }

  .carousel-caption h2 {
    font-size: 1.8rem;
  }

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

  .styling-section,
  .styling-section:nth-child(even) {
    flex-direction: column;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .filter-tabs {
    gap: 1rem;
  }

  .filter-tab {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 1rem 3%;
  }

  .nav-logo {
    font-size: 1.2rem;
  }

  .nav-links {
    gap: 1rem;
    font-size: 0.9rem;
  }

  .carousel-container {
    height: 60vh;
  }

  .carousel-caption h2 {
    font-size: 1.5rem;
  }

  .container {
    padding: 3rem 3%;
  }

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

  .card-image {
    height: 350px;
  }

  .styling-image img {
    height: 400px;
  }

  .styling-content h3 {
    font-size: 1.4rem;
  }
}