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

:root {
  --coral: #FF6B5E;
  --coral-dark: #F25B4E;
  --mint: #35CDB3;
  --mint-dark: #24B79F;
  --yellow: #FFCA3A;
  --peach: #FF9E7A;
  --cream: #FFF9F4;
  --pink-bg: #FFF0EB;
  --mint-bg: #E9F9F6;
  --ink: #3D2E2A;
  --white: #FFFFFF;
  --shadow-sm: 0 4px 12px rgba(61, 46, 42, 0.06);
  --shadow-lg: 0 16px 40px rgba(61, 46, 42, 0.08);
  --shadow-coral: 0 8px 24px rgba(255, 107, 94, 0.25);
}

body {
  font-family: system-ui, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--cream);
  color: var(--ink);
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--yellow);
  color: var(--ink);
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--cream);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--coral), var(--mint));
  border-radius: 8px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section:nth-child(even) {
  background: linear-gradient(160deg, var(--mint-bg) 0%, var(--white) 60%, var(--pink-bg) 100%);
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 249, 244, 0.88);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255, 107, 94, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  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: var(--ink);
  letter-spacing: -0.02em;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--coral) 0%, var(--yellow) 100%);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 107, 94, 0.3);
  transform: rotate(-8deg);
  transition: transform 0.3s ease;
}

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

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

.main-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding: 4px 2px;
  transition: color 0.2s;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--coral), var(--yellow));
  transition: width 0.3s cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

.nav-cta {
  padding: 10px 24px !important;
  border-radius: 50px !important;
  color: #fff !important;
  font-weight: 600;
  background: linear-gradient(135deg, var(--coral), var(--peach));
  box-shadow: var(--shadow-coral) !important;
  transition: all 0.3s ease !important;
}

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

.nav-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 107, 94, 0.35) !important;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: none;
  background: var(--pink-bg);
  border-radius: 12px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--coral);
  transition: background 0.2s;
}

.menu-toggle:hover {
  background: #FFE4DA;
}

/* ===== 首页 Hero ===== */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 140px 0 90px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 22% 28%, rgba(255, 202, 58, 0.16) 0%, transparent 32%),
    radial-gradient(circle at 82% 65%, rgba(53, 205, 179, 0.14) 0%, transparent 36%),
    radial-gradient(circle at 60% 10%, rgba(255, 107, 94, 0.06) 0%, transparent 22%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 70px;
  right: 6%;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2.5px dashed rgba(255, 107, 94, 0.25);
  animation: spinSlow 30s linear infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 120%;
  height: 120px;
  background: var(--white);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  z-index: 2;
  pointer-events: none;
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-content {
  max-width: 760px;
  position: relative;
  z-index: 3;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 20px;
  background: var(--mint-bg);
  color: var(--mint-dark);
  border: 1px solid rgba(53, 205, 179, 0.2);
  box-shadow: 0 2px 8px rgba(53, 205, 179, 0.1);
}

.hero-eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(53, 205, 179, 0.2);
}

.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: 36px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 24px 24px 0 -8px var(--yellow), 48px 48px 0 -24px var(--mint-bg);
  transform: rotate(1.5deg);
  transition: transform 0.4s ease;
}

.hero-image:hover {
  transform: rotate(0) scale(1.01);
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--coral) 0%, var(--peach) 100%);
  color: #fff;
  box-shadow: var(--shadow-coral);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(255, 107, 94, 0.35);
}

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

.btn-outline:hover {
  background: var(--mint-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(53, 205, 179, 0.15);
}

/* ===== 标签 / 标题 ===== */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 14px;
  background: var(--yellow);
  color: var(--ink);
  padding: 4px 16px;
  border-radius: 50px;
  transform: rotate(-2deg);
  box-shadow: 0 2px 8px rgba(255, 202, 58, 0.3);
}

.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: inline-block;
  width: 56px;
  height: 5px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--coral), var(--yellow));
  margin-left: 12px;
  vertical-align: middle;
}

.section-desc {
  max-width: 620px;
  opacity: 0.7;
  margin-bottom: 48px;
  font-size: 1rem;
  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 {
  background: var(--white);
  border-radius: 28px;
  padding: 32px 28px;
  border: none;
  border-top: 5px solid var(--coral);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  border-radius: 0 28px 0 50%;
  background: var(--pink-bg);
  z-index: 1;
}

.category-card:nth-child(2) {
  border-top-color: var(--mint);
}
.category-card:nth-child(2)::before {
  background: var(--mint-bg);
}
.category-card:nth-child(3) {
  border-top-color: var(--yellow);
}
.category-card:nth-child(3)::before {
  background: #FFF8E1;
}
.category-card:nth-child(4) {
  border-top-color: var(--peach);
}
.category-card:nth-child(4)::before {
  background: #FFF0EA;
}

.category-card:hover {
  transform: translateY(-6px) rotate(-1deg);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
  background: var(--pink-bg);
  position: relative;
  z-index: 2;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--coral);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
  margin-top: 12px;
}

.card-link:hover {
  gap: 10px;
}

/* ===== 特性块 ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.feature-image {
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  box-shadow: 20px 20px 0 -6px var(--yellow), 40px 40px 0 -20px var(--pink-bg);
  transition: transform 0.4s ease;
}

.feature-image:hover {
  transform: translateY(-4px) rotate(0.5deg) scale(1.01);
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 28px;
}

.feature-text h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.feature-list {
  list-style: none;
  margin-top: 20px;
}

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

.feature-list li::before {
  content: '✓';
  font-weight: 900;
  font-size: 0.8rem;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--mint);
  color: #fff;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===== 数据条 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item {
  background: var(--white);
  padding: 36px 24px;
  border-radius: 28px;
  border: none;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all 0.35s ease;
}

.stat-item:nth-child(1) {
  transform: rotate(-2deg);
  background: linear-gradient(135deg, #fff 0%, #FFF0EB 100%);
}
.stat-item:nth-child(2) {
  transform: rotate(1.5deg);
  margin-top: 12px;
  background: linear-gradient(135deg, #fff 0%, #E9F9F6 100%);
}
.stat-item:nth-child(3) {
  transform: rotate(-1deg);
  margin-top: 6px;
  background: linear-gradient(135deg, #fff 0%, #FFF8E1 100%);
}
.stat-item:nth-child(4) {
  transform: rotate(2deg);
  background: linear-gradient(135deg, #fff 0%, #F5F0FF 100%);
}

.stat-item:hover {
  transform: rotate(0) translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--coral), var(--peach));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item:nth-child(2) .stat-number {
  background: linear-gradient(135deg, var(--mint), var(--yellow));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item:nth-child(3) .stat-number {
  background: linear-gradient(135deg, var(--yellow), var(--coral));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item:nth-child(4) .stat-number {
  background: linear-gradient(135deg, var(--peach), var(--mint));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-top: 8px;
  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: 24px;
  overflow: hidden;
  background: var(--white);
  border: 1px solid rgba(61, 46, 42, 0.05);
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
}

.content-wall-item:nth-child(odd) {
  transform: rotate(-0.5deg);
}

.content-wall-item:nth-child(even) {
  transform: rotate(0.8deg) translateY(8px);
}

.content-wall-item:hover {
  transform: rotate(0) translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-lg);
}

.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(1.06);
}

.content-wall-body {
  padding: 22px 24px;
}

.content-wall-body h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.content-wall-body p {
  font-size: 0.88rem;
  opacity: 0.65;
  line-height: 1.6;
}

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

.faq-item {
  background: var(--white);
  border: 2px solid var(--mint-bg);
  border-radius: 20px;
  margin-bottom: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 4px;
}

.faq-item.open {
  border-color: var(--mint);
  background: linear-gradient(135deg, var(--white) 0%, var(--mint-bg) 100%);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  border-radius: 14px;
  background: var(--cream);
}

.faq-item.open .faq-question {
  background: transparent;
}

.faq-item .faq-question::after {
  content: '✦';
  font-size: 1.1rem;
  color: var(--coral);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
}

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

.faq-item .faq-answer {
  padding: 0 24px 18px;
  display: none;
  opacity: 0.72;
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeSlideIn 0.3s ease;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 0.72; transform: translateY(0); }
}

/* ===== CTA横幅 ===== */
.cta-banner {
  padding: 72px 48px;
  text-align: center;
  border-radius: 36px;
  background: linear-gradient(135deg, var(--coral) 0%, var(--peach) 50%, var(--yellow) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(255, 107, 94, 0.3);
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40px;
  right: 30px;
  width: 120px;
  height: 120px;
  border: 3px dashed rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  animation: spinSlow 20s linear infinite;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 20px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
  letter-spacing: -0.02em;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--coral);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  background: #FFF8F3;
  transform: translateY(-3px) scale(1.02);
}

/* ===== 页脚 ===== */
.site-footer {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, var(--cream) 0%, var(--pink-bg) 100%);
  border-top: 2px solid var(--pink-bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .logo {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.footer-brand p {
  opacity: 0.65;
  font-size: 0.9rem;
  max-width: 240px;
  line-height: 1.7;
}

.footer-col h5 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.footer-col h5::after {
  content: '';
  display: block;
  width: 24px;
  height: 3px;
  border-radius: 3px;
  background: var(--coral);
  margin-top: 6px;
}

.footer-col a {
  display: block;
  font-size: 0.9rem;
  padding: 5px 0;
  text-decoration: none;
  color: rgba(61, 46, 42, 0.7);
  transition: all 0.2s;
}

.footer-col a:hover {
  color: var(--coral);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 107, 94, 0.12);
  margin-top: 48px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.55;
}

/* ===== 工具类 ===== */
.text-accent {
  color: var(--coral);
  font-weight: 700;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 56px;
  opacity: 0.7;
  line-height: 1.8;
  font-size: 1rem;
}

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

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

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255, 249, 244, 0.98);
    backdrop-filter: blur(20px);
    padding: 24px 32px;
    gap: 18px;
    border-bottom: 1px solid var(--pink-bg);
    box-shadow: var(--shadow-lg);
    align-items: flex-start;
    z-index: 999;
  }

  .main-nav.open .nav-cta {
    color: #fff !important;
  }

  .hero {
    padding: 120px 0 70px;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

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

  .hero-image {
    box-shadow: 16px 16px 0 -8px var(--yellow), 32px 32px 0 -16px var(--mint-bg);
  }

  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 1.9rem;
  }

  .section-title::after {
    width: 36px;
    height: 4px;
  }

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

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

  .stats-bar {
    gap: 16px;
  }

  .stat-item {
    padding: 28px 18px;
  }

  .stat-number {
    font-size: 2.1rem;
  }
}

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

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

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

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

  .hero {
    min-height: 0;
    padding: 110px 0 100px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-image {
    transform: rotate(-1deg);
  }

  .hero::after {
    height: 70px;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section {
    padding: 60px 0;
  }

  .category-card:nth-child(even),
  .content-wall-item:nth-child(even) {
    transform: rotate(0);
  }

  .content-wall-item:hover {
    transform: translateY(-6px);
  }
}