/* ========== 基础重置 & 全局 ========== */
*, *::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: #FFFDF9;
  color: #4A3728;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(255, 126, 95, 0.18);
  color: #3D2C1E;
}

/* ========== 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:
    radial-gradient(800px 320px at 92% 8%, rgba(254, 180, 123, 0.12), transparent 65%),
    radial-gradient(600px 300px at 8% 92%, rgba(140, 206, 191, 0.10), transparent 65%),
    linear-gradient(180deg, #FFFDF9 0%, #FFF4ED 50%, #FFFDF9 100%);
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 253, 249, 0.82);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 138, 112, 0.12);
  box-shadow: 0 4px 30px rgba(255, 184, 154, 0.07);
}

.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: 800;
  font-size: 1.2rem;
  text-decoration: none;
  color: #4A3728;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  background: linear-gradient(135deg, #FF7E5F, #FEB47B);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 126, 95, 0.35);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.05);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: #4A3728;
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.main-nav a:hover {
  color: #FF7E5F;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, #FF7E5F, #FEB47B);
  transition: width 0.3s ease;
}

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

.nav-cta {
  padding: 9px 24px !important;
  border-radius: 30px !important;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, #FF7E5F, #FF9F7E);
  box-shadow: 0 4px 18px rgba(255, 126, 95, 0.3);
  transition: transform 0.25s ease, box-shadow 0.25s ease !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 126, 95, 0.4);
}

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

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #FFF0EA, #FFE5D9);
  border: 1px solid rgba(255, 184, 154, 0.35);
  cursor: pointer;
  color: #FF7E5F;
  font-size: 1.2rem;
}

/* ========== Hero ========== */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(520px 300px at 12% 70%, rgba(254, 180, 123, 0.20), transparent 70%),
    radial-gradient(620px 360px at 88% 25%, rgba(140, 206, 191, 0.16), transparent 70%),
    linear-gradient(170deg, #FFFDF9 0%, #FFF1E9 100%);
}

.hero::before {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55), rgba(255, 184, 154, 0.12) 40%, transparent 65%);
  top: -90px;
  right: 3%;
  animation: shimmerBlob 7s ease-in-out infinite alternate;
}

@keyframes shimmerBlob {
  0% { transform: translateY(0) scale(1); opacity: 0.6; }
  100% { transform: translateY(24px) scale(1.06); opacity: 1; }
}

.hero > .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

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

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 184, 154, 0.4);
  color: #E8795C;
  letter-spacing: 0.6px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #3D2C1E;
}

.hero h1 .text-accent {
  background: linear-gradient(120deg, #FF7E5F, #FEB47B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 36px;
  color: #6B5B4E;
  line-height: 1.8;
}

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

.hero-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow:
    20px 30px 60px rgba(255, 126, 95, 0.20),
    -10px -10px 50px rgba(140, 206, 191, 0.12);
  animation: heroFloat 6s ease-in-out infinite;
  position: relative;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(2deg); }
  50% { transform: translateY(-12px) rotate(1.5deg); }
}

.hero-image:hover {
  animation: none;
  transform: rotate(0deg) scale(1.02);
  box-shadow:
    24px 34px 70px rgba(255, 126, 95, 0.25),
    -12px -12px 60px rgba(140, 206, 191, 0.16);
}

.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: 30px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}

.btn-primary {
  background: linear-gradient(135deg, #FF7E5F, #FF9F7E, #FEB47B);
  background-size: 200% 200%;
  color: #fff;
  box-shadow: 0 10px 30px rgba(255, 126, 95, 0.3);
  animation: gradientFlow 5s ease infinite;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(255, 126, 95, 0.42);
}

@keyframes gradientFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.btn-outline {
  background: transparent;
  border: 2px solid #FFB08E;
  color: #FF7E5F;
}

.btn-outline:hover {
  background: rgba(255, 126, 95, 0.08);
  border-color: #FF7E5F;
  transform: translateY(-3px);
}

/* ========== 标签 / 标题 ========== */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 14px;
  text-transform: uppercase;
  color: #FF7E5F;
  background: linear-gradient(135deg, #FFF0EA, #FDE6DB);
  padding: 6px 18px;
  border-radius: 30px;
  border: 1px solid rgba(255, 184, 154, 0.3);
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #3D2C1E;
  line-height: 1.25;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  color: #6B5B4E;
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ========== 卡片网格 ========== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  border-radius: 20px;
  padding: 32px;
  border: 1px solid rgba(255, 184, 154, 0.16);
  background: #FFFFFF;
  box-shadow: 0 8px 30px rgba(255, 184, 154, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #FF7E5F, #FEB47B, #8CCEBF);
  border-radius: 0 0 5px 5px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -80%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
  pointer-events: none;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 50px rgba(255, 126, 95, 0.15);
}

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

.category-card:hover::after {
  left: 130%;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: linear-gradient(135deg, #FFF0EA, #FFE4D8);
  color: #FF7E5F;
  box-shadow: 0 4px 12px rgba(255, 184, 154, 0.20);
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: #FF7E5F;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease, color 0.3s ease;
}

.card-link:hover {
  gap: 8px;
  color: #E8795C;
}

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

.feature-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(255, 184, 154, 0.20);
  position: relative;
}

.feature-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.feature-image:hover img {
  transform: scale(1.03);
}

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

.feature-list {
  list-style: none;
  margin-top: 12px;
}

.feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #4A3728;
  font-size: 1rem;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: #FF7E5F;
  background: linear-gradient(135deg, #FFF0EA, #FFE5D9);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(255, 126, 95, 0.15);
}

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

.stat-item {
  padding: 36px 24px;
  border-radius: 20px;
  border: 1px solid rgba(255, 184, 154, 0.16);
  background: #FFFFFF;
  box-shadow: 0 8px 30px rgba(255, 184, 154, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, #FF7E5F, #FEB47B);
  opacity: 0.6;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 42px rgba(255, 126, 95, 0.16);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FF7E5F 0%, #FEB47B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  color: #6B5B4E;
  font-weight: 500;
}

/* ========== 内容墙 ========== */
.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 184, 154, 0.16);
  background: #FFFFFF;
  box-shadow: 0 8px 30px rgba(255, 184, 154, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 50px rgba(255, 126, 95, 0.15);
}

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

.content-wall-item:hover img {
  transform: scale(1.05);
}

.content-wall-body {
  padding: 24px;
}

.content-wall-body p {
  font-size: 0.9rem;
  color: #6B5B4E;
  margin-top: 8px;
  line-height: 1.6;
}

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

.faq-item {
  border: 1px solid rgba(255, 184, 154, 0.20);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #FFFDF9;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(255, 126, 95, 0.35);
}

.faq-item.open {
  border-color: rgba(255, 126, 95, 0.40);
  box-shadow: 0 8px 30px rgba(255, 184, 154, 0.12);
  background: #FFFFFF;
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #3D2C1E;
  font-size: 1rem;
  background: transparent;
  transition: color 0.3s ease;
}

.faq-item.open .faq-question {
  color: #FF7E5F;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: #FF8A70;
  transition: transform 0.35s ease, color 0.3s ease;
  line-height: 1;
  margin-left: 12px;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
  color: #FF7E5F;
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  color: #6B5B4E;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeSlideIn 0.35s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== CTA横幅 ========== */
.cta-banner {
  padding: 60px 32px;
  text-align: center;
  border-radius: 24px;
  color: #fff;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(400px 220px at 12% 18%, rgba(255, 255, 255, 0.28), transparent 62%),
    radial-gradient(420px 220px at 88% 82%, rgba(140, 206, 191, 0.35), transparent 62%),
    linear-gradient(135deg, #FF7E5F 0%, #FEB47B 100%);
  box-shadow: 0 20px 60px rgba(255, 126, 95, 0.32);
}

.cta-banner::before,
.cta-banner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.18);
  pointer-events: none;
}

.cta-banner::before {
  width: 170px;
  height: 170px;
  top: -60px;
  right: -40px;
  border-width: 3px;
}

.cta-banner::after {
  width: 85px;
  height: 85px;
  bottom: -20px;
  left: 30px;
  border-width: 4px;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 2;
}

.cta-banner p {
  position: relative;
  z-index: 2;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn-primary {
  background: #fff;
  color: #FF7E5F;
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.10);
  animation: none;
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  background: #FFF5EF;
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.14);
}

/* ========== 页脚 ========== */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, #FFFDF9, #FDE8DD);
  color: #4A3728;
  border-top: 1px solid rgba(255, 138, 112, 0.15);
  margin-top: 40px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, #FF7E5F, #FEB47B, #8CCEBF);
}

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

.footer-brand {
  padding-right: 20px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(74, 55, 40, 0.7);
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #3D2C1E;
}

.footer-col a {
  display: block;
  color: rgba(74, 55, 40, 0.7);
  text-decoration: none;
  padding: 4px 0;
  font-size: 0.85rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
  color: #FF7E5F;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 138, 112, 0.20);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(74, 55, 40, 0.6);
}

/* ========== 工具类 ========== */
.text-accent {
  color: #FF7E5F;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #6B5B4E;
  line-height: 1.8;
}

.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(255, 253, 249, 0.96);
    backdrop-filter: blur(20px);
    padding: 24px;
    border-bottom: 1px solid rgba(255, 138, 112, 0.15);
    box-shadow: 0 20px 40px rgba(255, 184, 154, 0.16);
    gap: 16px;
    align-items: flex-start;
  }

  .main-nav.open a {
    padding: 6px 0;
  }

  .main-nav.open .nav-cta {
    margin-top: 8px;
  }

  .hero {
    min-height: 65vh;
  }

  .hero > .container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .cta-banner {
    padding: 44px 24px;
  }

  .cta-banner h2 {
    font-size: 1.7rem;
  }
}

@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 {
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-buttons .btn {
    justify-content: center;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  .stats-bar {
    gap: 16px;
  }

  .stat-item {
    padding: 28px 20px;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

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