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

:root {
  --bg: #fefaf6;
  --surface: #ffffff;
  --text: #3d2c2a;
  --text-secondary: #8c7a75;
  --primary: #e07b5a;
  --primary-dark: #c96a4a;
  --primary-light: #fce8e1;
  --accent: #d4956b;
  --accent-soft: #fdf0e8;
  --border: #f0e8e2;
  --highlight: #faf3ed;
  --green-accent: #8aab9e;
  --green-soft: #eef4f1;
  --shadow-sm: 0 2px 8px rgba(61, 44, 42, 0.06);
  --shadow-md: 0 8px 28px rgba(61, 44, 42, 0.10);
  --shadow-lg: 0 16px 48px rgba(61, 44, 42, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
}

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 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: #fdf7f2;
}

/* 导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(254, 250, 246, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.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: 1.2rem;
  text-decoration: none;
  color: var(--text);
  letter-spacing: -0.3px;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: linear-gradient(135deg, #e07b5a 0%, #d4956b 100%);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(224, 123, 90, 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;
  color: var(--text-secondary);
  transition: color 0.2s, transform 0.2s;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width 0.3s ease;
}

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

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

.nav-cta {
  padding: 9px 22px;
  border-radius: 25px;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, #e07b5a 0%, #d06848 100%);
  box-shadow: 0 4px 14px rgba(224, 123, 90, 0.35);
  transition: transform 0.2s, box-shadow 0.2s !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(224, 123, 90, 0.45);
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero */
.hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 88px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -180px;
  right: -160px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle at center, rgba(224, 123, 90, 0.10) 0%, rgba(212, 149, 107, 0.05) 35%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: heroGlow 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -80px;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle at center, rgba(138, 171, 158, 0.07) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  animation: heroGlow 10s ease-in-out 3s infinite;
}

@keyframes heroGlow {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-content {
  max-width: 640px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 24px;
  margin-bottom: 18px;
  background: var(--primary-light);
  color: var(--primary-dark);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text);
}

.hero h1 .highlight {
  background: linear-gradient(135deg, #e07b5a 0%, #d4956b 60%, #c17d60 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 520px;
  margin-bottom: 34px;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 1px solid var(--border);
  background: var(--surface);
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, transparent 60%, rgba(61, 44, 42, 0.03) 100%);
  pointer-events: none;
  z-index: 1;
}

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

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 28px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.25s ease;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 28px;
  opacity: 0;
  transition: opacity 0.25s;
  background: rgba(255, 255, 255, 0.15);
}

.btn:hover::after {
  opacity: 1;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #e07b5a 0%, #d06848 100%);
  box-shadow: 0 6px 20px rgba(224, 123, 90, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(224, 123, 90, 0.45);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(224, 123, 90, 0.3);
}

/* 标签/标题 */
.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 12px;
  color: var(--primary);
  text-transform: uppercase;
  position: relative;
  padding-left: 28px;
}

.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1.25;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 1.05rem;
}

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

.category-card {
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  border: 1px solid var(--border);
  transition: all 0.35s ease;
  background: var(--surface);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #e07b5a 0%, #d4956b 100%);
  border-radius: 0 0 3px 3px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.category-card:hover::before {
  transform: scaleX(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: var(--accent-soft);
  color: var(--primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.category-card:hover .card-icon {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(224, 123, 90, 0.2);
}

.category-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.category-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

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

.card-link::after {
  content: '→';
  font-size: 1.1rem;
  transition: transform 0.3s;
}

.card-link:hover::after {
  transform: translateX(3px);
}

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

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  position: relative;
}

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

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-text p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text);
}

.feature-list li::before {
  content: '✓';
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
}

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

.stat-item {
  padding: 30px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  opacity: 0;
  transition: opacity 0.3s, width 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.stat-item:hover::after {
  opacity: 1;
  width: 60px;
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -1px;
  line-height: 1;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: var(--text-secondary);
  font-weight: 500;
}

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

.content-wall-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all 0.35s ease;
  background: var(--surface);
  cursor: pointer;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.content-wall-item:hover img {
  transform: scale(1.04);
}

.content-wall-body {
  padding: 22px 20px;
}

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.content-wall-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.content-wall-body .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary-dark);
  margin-bottom: 8px;
}

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

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  background: var(--surface);
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: #e8d5c8;
  box-shadow: var(--shadow-sm);
}

.faq-item .faq-question {
  padding: 18px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 1rem;
  color: var(--text);
  user-select: none;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--primary);
  transition: transform 0.35s ease;
  flex-shrink: 0;
}

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

.faq-item .faq-answer {
  padding: 0 22px 18px;
  display: none;
  opacity: 0.7;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
  animation: fadeSlideIn 0.35s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 0.7; transform: translateY(0); }
}

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

/* CTA横幅 */
.cta-banner {
  padding: 60px 40px;
  text-align: center;
  border-radius: var(--radius-xl);
  color: #fff;
  background: linear-gradient(135deg, #e07b5a 0%, #d06848 40%, #c17d60 100%);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -15%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
  border-radius: 50%;
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}

.cta-banner .btn-primary:hover {
  background: #fffefd;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px);
}

/* 页脚 */
.site-footer {
  padding: 60px 0 24px;
  background: #fdf7f3;
  border-top: 1px solid var(--border);
}

.site-footer .container {
  position: relative;
}

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

.footer-brand .logo {
  margin-bottom: 12px;
  font-size: 1.3rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 8px;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  letter-spacing: 0.5px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.88rem;
  transition: color 0.2s, padding-left 0.2s;
  display: inline-block;
}

.footer-col ul li a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 工具类 */
.text-accent {
  color: var(--primary);
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

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

/* 装饰分割线 */
.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #e07b5a 0%, #d4956b 100%);
  border-radius: 2px;
  margin: 0 auto 32px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero .container {
    gap: 32px;
  }
  .hero h1 {
    font-size: 2.6rem;
  }
  .feature-block {
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    order: 2;
    margin: 0 auto;
  }
  .hero-image {
    order: 1;
    max-width: 480px;
    margin: 0 auto;
  }
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-buttons {
    justify-content: center;
  }
  .hero-eyebrow {
    margin-left: auto;
    margin-right: auto;
  }
  .feature-block {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  .feature-image {
    max-width: 480px;
    margin: 0 auto;
  }
  .feature-list li {
    justify-content: center;
  }
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .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(254, 250, 246, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .main-nav.open a {
    font-size: 1rem;
    padding: 8px 0;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .cta-banner {
    padding: 40px 24px;
  }
  .cta-banner h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }
  .hero h1 {
    font-size: 1.9rem;
  }
  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 40px;
  }
  .section {
    padding: 50px 0;
  }
  .section-title {
    font-size: 1.5rem;
  }
  .stat-number {
    font-size: 2rem;
  }
  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}