/* 无极磁力 - 独特视觉风格 */
/* 灵感：透明玻璃层叠 + 柔和渐变 + 微光效 */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: #faf8f5; /* 米白基底 */
  color: #3a3530;
  line-height: 1.6;
}

/* 核心布局 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(135deg, #f7f3ee 0%, #f0ece7 100%);
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f0ece7; }
::-webkit-scrollbar-thumb { background: #c4b5a5; border-radius: 4px; }

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 248, 245, 0.7);
  backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid rgba(195, 180, 160, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.3rem;
  text-decoration: none;
  color: #3a3530;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, #e8d5c4, #c4a892);
  color: #fff;
  box-shadow: 0 2px 12px rgba(196, 168, 146, 0.3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: 0.25s ease;
  color: #5a524a;
  position: relative;
  padding: 4px 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #c4a892, #e8d5c4);
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: #3a3530;
}

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 50px !important;
  background: linear-gradient(135deg, #c4a892, #b89a82);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(196, 168, 146, 0.3);
  transition: all 0.3s ease !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196, 168, 146, 0.4);
  background: linear-gradient(135deg, #b89a82, #a88870);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #3a3530;
  cursor: pointer;
  padding: 8px;
}

/* 首页Hero — 玻璃层叠效果 */
.hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(165deg, #faf8f5 0%, #f2ece6 40%, #e8ddd4 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 213, 196, 0.3), transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196, 168, 146, 0.2), transparent 70%);
  pointer-events: none;
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 20px;
  background: rgba(196, 168, 146, 0.15);
  color: #8a7a6a;
  letter-spacing: 1px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(196, 168, 146, 0.2);
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #2d2823;
  font-weight: 800;
  letter-spacing: -1px;
}

.hero h1 span {
  background: linear-gradient(135deg, #c4a892, #8a7a6a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 560px;
  margin-bottom: 36px;
  color: #5a524a;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 14px;
}

.hero-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(58, 53, 48, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(2px);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #c4a892, #b89a82);
  box-shadow: 0 4px 16px rgba(196, 168, 146, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 168, 146, 0.4);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid #c4a892;
  color: #5a524a;
}

.btn-outline:hover {
  background: rgba(196, 168, 146, 0.08);
  border-color: #b89a82;
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  margin-bottom: 12px;
  color: #8a7a6a;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  color: #2d2823;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  color: #5a524a;
}

/* 卡片网格 — 玻璃卡片 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.category-card {
  border-radius: 16px;
  padding: 32px 28px;
  border: 1px solid rgba(196, 168, 146, 0.2);
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #c4a892, #e8d5c4);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(58, 53, 48, 0.06);
  border-color: rgba(196, 168, 146, 0.4);
  background: rgba(255, 255, 255, 0.7);
}

.category-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: linear-gradient(135deg, #f0ece7, #e8ddd4);
  color: #5a524a;
}

.card-link {
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  color: #c4a892;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 8px;
}

/* 特性块 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(58, 53, 48, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-text {
  padding: 20px 0;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #5a524a;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: #c4a892;
  font-size: 0.9rem;
}

/* 数据条 */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 32px 24px;
  border-radius: 16px;
  border: 1px solid rgba(196, 168, 146, 0.15);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  color: #2d2823;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #5a524a;
}

/* 内容墙 */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.content-wall-item {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(196, 168, 146, 0.15);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
  transition: all 0.3s ease;
}

.content-wall-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(58, 53, 48, 0.06);
  border-color: rgba(196, 168, 146, 0.3);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.content-wall-body {
  padding: 22px;
}

/* FAQ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid rgba(196, 168, 146, 0.15);
  border-radius: 12px;
  margin-bottom: 8px;
  overflow: hidden;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(196, 168, 146, 0.3);
  background: rgba(255, 255, 255, 0.5);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #3a3530;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: #c4a892;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  color: #5a524a;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  display: block;
}

/* CTA横幅 */
.cta-banner {
  padding: 64px 24px;
  text-align: center;
  border-radius: 20px;
  color: #fff;
  background: linear-gradient(135deg, #c4a892, #a88870, #8a7a6a);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1), transparent 60%);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #5a524a;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.cta-banner .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* 页脚 */
.site-footer {
  padding: 64px 0 28px;
  background: #f0ece7;
  border-top: 1px solid rgba(196, 168, 146, 0.15);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  color: #3a3530;
}

.footer-brand p {
  opacity: 0.7;
  margin-top: 12px;
  font-size: 0.9rem;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: #2d2823;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  text-decoration: none;
  color: #5a524a;
  opacity: 0.7;
  font-size: 0.9rem;
  transition: opacity 0.2s ease;
}

.footer-col ul li a:hover {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(196, 168, 146, 0.15);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #5a524a;
  opacity: 0.6;
}

/* 工具类 */
.text-accent {
  color: #c4a892;
}

.text-center {
  text-align: center;
}

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #5a524a;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

/* 响应式 */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .main-nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    background: rgba(250, 248, 245, 0.98);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(196, 168, 146, 0.15);
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .stat-number {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-buttons {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 48px 0;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}