:root {
  --cream: #FBF7F2;
  --peach: #F7E8DC;
  --coral: #FF7E6B;
  --coral-deep: #F4634F;
  --mint: #A8D8B9;
  --lavender: #CDBBE8;
  --butter: #F5D77E;
  --sky: #A9DCE0;
  --ink: #3E322C;
  --muted: rgba(62, 50, 44, 0.62);
  --card-shadow: 0 8px 30px rgba(62, 50, 44, 0.07);
  --card-shadow-hover: 0 18px 50px rgba(62, 50, 44, 0.12);
}

*, *::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: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.section {
  padding: 90px 0;
  position: relative;
}

.section:nth-child(even) {
  background: var(--peach);
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(251, 247, 242, 0.92);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid rgba(62, 50, 44, 0.06);
}

.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: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
  transition: color 0.25s;
}

.logo:hover {
  color: var(--coral-deep);
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--coral), var(--butter));
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 126, 107, 0.35);
}

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

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  opacity: 0.75;
  transition: all 0.25s;
  position: relative;
  letter-spacing: 0.01em;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--coral);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.main-nav a:not(.nav-cta):hover {
  opacity: 1;
  color: var(--coral-deep);
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  padding: 8px 22px;
  border-radius: 100px;
  color: #fff !important;
  font-weight: 700;
  background: linear-gradient(135deg, var(--coral), var(--coral-deep));
  box-shadow: 0 4px 18px rgba(255, 126, 107, 0.32);
  transition: transform 0.25s, box-shadow 0.25s !important;
  opacity: 1 !important;
  font-size: 0.85rem;
}

.nav-cta:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 28px rgba(255, 126, 107, 0.42);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.4rem;
  color: var(--ink);
  padding: 8px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: var(--peach);
}

/* ===== Hero区域 ===== */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 75%, rgba(245, 215, 126, 0.22) 0%, transparent 32%),
    radial-gradient(circle at 92% 18%, rgba(168, 216, 185, 0.3) 0%, transparent 36%),
    radial-gradient(circle at 78% 85%, rgba(255, 126, 107, 0.12) 0%, transparent 28%),
    linear-gradient(140deg, #FBF7F2 0%, #F3EBE3 100%);
}

.hero::before {
  content: '';
  position: absolute;
  right: -4%;
  top: 8%;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(205, 187, 232, 0.35) 0%, rgba(205, 187, 232, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  left: -6%;
  bottom: -18%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 126, 107, 0.08), rgba(169, 220, 224, 0.18));
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  max-width: 760px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  background: var(--mint);
  color: #2C4936;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.72;
  max-width: 560px;
  margin-bottom: 34px;
  line-height: 1.7;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 100px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  font-size: 0.95rem;
}

.btn::before {
  content: '▶';
  font-size: 0.7rem;
  opacity: 0.7;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--coral), var(--coral-deep));
  box-shadow: 0 8px 28px rgba(255, 126, 107, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(255, 126, 107, 0.52);
}

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

.btn-outline:hover {
  background: var(--ink);
  color: var(--cream);
  transform: translateY(-3px);
}

.btn-outline::before {
  content: '✦';
}

/* ===== 标签/标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  color: var(--coral-deep);
  text-transform: uppercase;
  background: rgba(255, 126, 107, 0.1);
  padding: 4px 14px;
  border-radius: 100px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 44px;
  line-height: 1.7;
}

/* ===== 卡片网格 ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 26px;
}

.category-card {
  border-radius: 24px;
  padding: 34px 28px;
  border: none;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--butter));
  opacity: 0;
  transition: opacity 0.3s;
}

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

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

.category-card:nth-child(1) {
  background: linear-gradient(145deg, #FFF0EB, #FFE1D8);
}

.category-card:nth-child(2) {
  background: linear-gradient(145deg, #EBF7EE, #DCEDE2);
}

.category-card:nth-child(3) {
  background: linear-gradient(145deg, #F1EDF8, #E6DCF2);
}

.category-card:nth-child(4) {
  background: linear-gradient(145deg, #FDF7E3, #F9ECC8);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 4px 14px rgba(62, 50, 44, 0.08);
}

.card-link {
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s, color 0.2s;
}

.card-link:hover {
  color: var(--coral-deep);
  gap: 10px;
}

.card-link::after {
  content: '→';
}

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-image {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  position: relative;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(135deg, #F5E6DA, #E8F0E9);
}

.feature-text {
  font-size: 1.05rem;
}

.feature-list {
  list-style: none;
  margin-top: 8px;
}

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.98rem;
  border-bottom: 1px dashed rgba(62, 50, 44, 0.1);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  color: var(--coral);
  background: rgba(255, 126, 107, 0.12);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

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

.stat-item {
  padding: 32px 20px;
  border-radius: 24px;
  border: none;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(4px);
  transition: transform 0.3s, box-shadow 0.3s;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--coral-deep), var(--lavender));
  -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;
  letter-spacing: 0.03em;
}

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

.content-wall-item {
  border-radius: 24px;
  overflow: hidden;
  border: none;
  background: #fff;
  transition: transform 0.35s, box-shadow 0.35s;
  box-shadow: var(--card-shadow);
}

.content-wall-item:hover {
  transform: translateY(-6px) rotate(0.5deg);
  box-shadow: var(--card-shadow-hover);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: linear-gradient(145deg, var(--peach), var(--mint));
}

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

.content-wall-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.content-wall-body p {
  font-size: 0.85rem;
  opacity: 0.65;
}

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

.faq-item {
  border: none;
  border-radius: 18px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: var(--card-shadow);
  transition: box-shadow 0.3s;
}

.faq-item:hover {
  box-shadow: var(--card-shadow-hover);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
}

.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--coral);
  transition: transform 0.3s;
}

.faq-item.open .faq-question::after {
  transform: rotate(135deg);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.72;
  line-height: 1.7;
  font-size: 0.95rem;
}

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

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 68px 40px;
  text-align: center;
  border-radius: 32px;
  color: #fff;
  background: linear-gradient(135deg, var(--coral), #FF9D8F, var(--coral-deep));
  box-shadow: 0 20px 60px rgba(255, 126, 107, 0.4);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  pointer-events: none;
}

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

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 24px;
  color: #fff;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral-deep);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.cta-banner .btn-primary::before {
  content: '▶';
  color: var(--coral);
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 64px 0 28px;
  background: #F4EAE1;
  border-top: 1px solid rgba(62, 50, 44, 0.05);
}

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

.footer-brand {
  font-size: 0.95rem;
}

.footer-brand p {
  opacity: 0.65;
  line-height: 1.7;
  margin-top: 10px;
}

.footer-col {
  font-size: 0.9rem;
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  opacity: 0.65;
  padding: 5px 0;
  transition: opacity 0.2s, color 0.2s;
}

.footer-col a:hover {
  opacity: 1;
  color: var(--coral-deep);
}

.footer-bottom {
  border-top: 1px solid rgba(62, 50, 44, 0.08);
  margin-top: 44px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.55;
}

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

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  line-height: 1.7;
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .section {
    padding: 64px 0;
  }

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

  .feature-block {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .main-nav {
    display: none;
    gap: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(251, 247, 242, 0.98);
    backdrop-filter: blur(20px);
    padding: 16px 24px 24px;
    border-bottom: 1px solid rgba(62, 50, 44, 0.06);
    gap: 8px;
    box-shadow: 0 20px 40px rgba(62, 50, 44, 0.08);
  }

  .main-nav.open a {
    padding: 12px 8px;
    border-radius: 12px;
    font-size: 1rem;
  }

  .main-nav.open a:not(.nav-cta):hover {
    background: rgba(255, 126, 107, 0.08);
  }

  .main-nav.open .nav-cta {
    margin-top: 4px;
    text-align: center;
  }

  .hero {
    min-height: 60vh;
    padding: 96px 0 48px;
  }

  .hero-buttons {
    flex-direction: row;
  }

  .cta-banner {
    padding: 48px 24px;
  }
}

@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;
    width: 100%;
  }

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

  .hero h1 {
    font-size: 1.9rem;
  }

  .section {
    padding: 48px 0;
  }

  .hero-eyebrow {
    font-size: 0.72rem;
    padding: 5px 12px;
  }

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

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

  .stats-bar {
    gap: 12px;
  }

  .stat-item {
    padding: 20px 12px;
  }

  .stat-number {
    font-size: 1.8rem;
  }
}