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

:root {
  --primary: #FF5C8A;
  --primary-light: #FFD6E0;
  --primary-dark: #E84A7A;
  --secondary: #6C5CE7;
  --secondary-light: #E8DFFF;
  --yellow: #FFD93D;
  --yellow-light: #FFF8E6;
  --mint: #00D2A0;
  --mint-light: #E6FFF8;
  --bg-main: #FFF7FA;
  --bg-alt: #F8F2FF;
  --text-main: #2D1B2E;
  --text-light: #6B5E6E;
}

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background-color: var(--bg-main);
  background-image: radial-gradient(rgba(255, 92, 138, 0.05) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  color: var(--text-main);
  line-height: 1.7;
}

::selection { background: var(--primary); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-light), var(--secondary-light));
  border-radius: 10px;
}

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

.section { padding: 80px 0; position: relative; }
.section:nth-child(even) { background: var(--bg-alt); }

/* ---------- 导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 247, 250, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 92, 138, 0.12);
  box-shadow: 0 4px 24px rgba(255, 92, 138, 0.05);
}

.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: 900;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #FF5C8A, #FF9A5C);
  color: #fff;
  font-size: 1rem;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(255, 92, 138, 0.3);
  transform: rotate(-6deg);
  transition: transform 0.3s ease;
}

.logo:hover .logo-icon { transform: rotate(6deg) scale(1.08); }

.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: #4A3B52;
  transition: color 0.3s ease;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  transition: width 0.3s ease;
}

.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after { width: 100%; }

.nav-cta {
  padding: 10px 24px;
  border-radius: 24px;
  color: #fff !important;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 4px 16px rgba(255, 92, 138, 0.25);
  transition: all 0.3s ease;
}

.nav-cta::after { display: none; }
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.35);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(255, 92, 138, 0.1);
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--primary);
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
}

.menu-toggle:hover { background: rgba(255, 92, 138, 0.18); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  gap: 60px;
  padding-top: 68px;
  position: relative;
  background: linear-gradient(135deg, #FFF0F5 0%, #F3EEFF 50%, #FFF8E6 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 92, 138, 0.08), transparent 60%);
  top: -80px;
  right: -80px;
  border-radius: 50%;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.08), transparent 60%);
  bottom: 20px;
  left: 20%;
  border-radius: 50%;
  z-index: 0;
}

.hero-content {
  flex: 1;
  max-width: 720px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 24px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
  color: var(--primary-dark);
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 92, 138, 0.15);
  backdrop-filter: blur(4px);
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  font-weight: 900;
  letter-spacing: -1.5px;
  color: var(--text-main);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.75;
  max-width: 560px;
  margin-bottom: 32px;
  color: #4A3B52;
  line-height: 1.8;
}

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

.hero-image {
  flex: 1;
  height: 420px;
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #FFE8F0, #E8DFFF, #FFF5E6);
  padding: 50px 40px;
  box-shadow: 0 24px 64px rgba(255, 92, 138, 0.15);
  z-index: 1;
}

.hero-image::before {
  content: '233333';
  position: absolute;
  top: 30px;
  left: 20px;
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 24px;
  box-shadow: 0 4px 16px rgba(255, 92, 138, 0.3);
  z-index: 2;
  animation: floatDanmaku1 3s infinite ease-in-out;
}

.hero-image::after {
  content: '前方高能前方高能';
  position: absolute;
  bottom: 45px;
  right: 25px;
  background: linear-gradient(90deg, var(--secondary), #8B5CF6);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 24px;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
  z-index: 2;
  animation: floatDanmaku2 4s infinite ease-in-out reverse;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
  position: relative;
  z-index: 1;
}

@keyframes floatDanmaku1 {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50% { transform: translateY(-12px) rotate(-4deg); }
}

@keyframes floatDanmaku2 {
  0%, 100% { transform: translateY(0) rotate(4deg); }
  50% { transform: translateY(-10px) rotate(6deg); }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 28px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  line-height: 1.4;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #FF7E9E);
  box-shadow: 0 6px 20px rgba(255, 92, 138, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255, 92, 138, 0.4);
}

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

.btn-outline:hover {
  background: rgba(255, 92, 138, 0.08);
  transform: translateY(-2px);
}

/* ---------- 标签/标题 ---------- */
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 12px;
  color: var(--primary);
  text-transform: uppercase;
  background: rgba(255, 92, 138, 0.08);
  padding: 4px 14px;
  border-radius: 20px;
}

.section-title {
  font-size: 2.4rem;
  margin-bottom: 14px;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: var(--text-main);
  line-height: 1.3;
}

.section-desc {
  max-width: 600px;
  opacity: 0.7;
  margin-bottom: 40px;
  color: #4A3B52;
  font-size: 1.05rem;
}

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

.category-card {
  border-radius: 24px;
  padding: 32px 28px;
  border: 1px solid rgba(255, 92, 138, 0.08);
  background: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.06);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--yellow));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(255, 92, 138, 0.12);
  border-color: rgba(255, 92, 138, 0.2);
}

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

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--primary-light), #FFE8F0);
  color: var(--primary);
}

.category-card:nth-child(2n) .card-icon {
  background: linear-gradient(135deg, var(--secondary-light), #F3EEFF);
  color: var(--secondary);
}

.category-card:nth-child(3n) .card-icon {
  background: linear-gradient(135deg, var(--yellow-light), #FFF5E6);
  color: #D4A200;
}

.category-card:nth-child(4n) .card-icon {
  background: linear-gradient(135deg, var(--mint-light), #E6FFFA);
  color: #00A37E;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--primary);
  display: inline-block;
  transition: letter-spacing 0.3s ease;
}

.card-link:hover { letter-spacing: 1px; }

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

.feature-image {
  border-radius: 24px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #FFE8F0, #E8DFFF);
  box-shadow: 0 16px 48px rgba(108, 92, 231, 0.1);
  min-height: 320px;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-image:hover img { transform: scale(1.04); }

.feature-text {
  font-size: 1.05rem;
  color: #4A3B52;
  line-height: 1.7;
}

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

.feature-list li {
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: #4A3B52;
}

.feature-list li::before {
  content: '✦';
  font-weight: 700;
  color: var(--primary);
  background: rgba(255, 92, 138, 0.1);
  min-width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

/* ---------- 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: 24px;
  border: 1px solid rgba(255, 92, 138, 0.08);
  background: #fff;
  box-shadow: 0 4px 20px rgba(255, 92, 138, 0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.stat-item:nth-child(1) { background: linear-gradient(135deg, #FFF0F5, #fff); }
.stat-item:nth-child(2) { background: linear-gradient(135deg, #F3EEFF, #fff); }
.stat-item:nth-child(3) { background: linear-gradient(135deg, #FFF8E6, #fff); }
.stat-item:nth-child(4) { background: linear-gradient(135deg, #E6FFF8, #fff); }

.stat-item::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 60px;
  height: 60px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.06;
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(108, 92, 231, 0.1);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -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: 6px;
  color: #4A3B52;
  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;
  border: 1px solid rgba(255, 92, 138, 0.08);
  background: #fff;
  box-shadow: 0 4px 16px rgba(108, 92, 231, 0.05);
  transition: all 0.3s ease;
}

.content-wall-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(255, 92, 138, 0.12);
}

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

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

.content-wall-body {
  padding: 24px;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
}

.content-wall-body::after {
  content: '→';
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 1.2rem;
  opacity: 0;
  transition: all 0.3s ease;
}

.content-wall-item:hover .content-wall-body::after {
  opacity: 1;
  right: 20px;
}

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

.faq-item {
  border: 1px solid rgba(255, 92, 138, 0.1);
  border-radius: 18px;
  margin-bottom: 12px;
  overflow: hidden;
  cursor: pointer;
  background: #fff;
  box-shadow: 0 2px 12px rgba(108, 92, 231, 0.04);
  transition: all 0.3s ease;
}

.faq-item:hover { border-color: rgba(255, 92, 138, 0.25); }

.faq-item.open {
  border-color: rgba(255, 92, 138, 0.3);
  box-shadow: 0 8px 24px rgba(255, 92, 138, 0.08);
}

.faq-item .faq-question {
  padding: 20px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-main);
  font-size: 1.02rem;
}

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

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

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  color: #4A3B52;
  line-height: 1.7;
}

.faq-item.open .faq-answer { display: block; animation: fadeIn 0.4s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* ---------- CTA横幅 ---------- */
.cta-banner {
  padding: 64px 40px;
  text-align: center;
  border-radius: 32px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #FF7E9E 30%, var(--secondary) 70%, #8B5CF6);
  box-shadow: 0 20px 60px rgba(255, 92, 138, 0.3);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -60px;
  right: -40px;
}

.cta-banner::after {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  bottom: -30px;
  left: -20px;
}

.cta-banner h2 {
  color: #fff;
  font-size: 2.2rem;
  margin-bottom: 14px;
  font-weight: 900;
  position: relative;
  z-index: 1;
  letter-spacing: -0.5px;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.3);
  position: relative;
  z-index: 1;
  margin-top: 8px;
}

.cta-banner .btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.4);
}

/* ---------- 页脚 ---------- */
.site-footer {
  padding: 56px 0 28px;
  background: linear-gradient(135deg, #FFF0F5, #F8F2FF);
  border-top: 1px solid rgba(255, 92, 138, 0.12);
}

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

.site-footer .container::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), var(--yellow));
  border-radius: 0 0 8px 8px;
}

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

.footer-brand {
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.footer-brand p {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-light);
  margin-top: 10px;
  line-height: 1.7;
  max-width: 240px;
}

.footer-col {
  color: #4A3B52;
  font-size: 0.95rem;
}

.footer-col h4 {
  font-size: 1rem;
  margin-bottom: 14px;
  color: var(--text-main);
  font-weight: 800;
}

.footer-col a {
  color: #4A3B52;
  text-decoration: none;
  display: block;
  padding: 4px 0;
  font-size: 0.9rem;
  transition: color 0.3s ease, padding-left 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 92, 138, 0.1);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ---------- 工具类 ---------- */
.text-accent {
  color: var(--primary);
  position: relative;
  display: inline-block;
}

.text-accent::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(255, 217, 61, 0.3);
  border-radius: 4px;
  z-index: -1;
}

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

.seo-description {
  max-width: 600px;
  margin: 0 auto 48px;
  opacity: 0.7;
  color: #4A3B52;
  line-height: 1.8;
}

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

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
    padding-top: 100px;
    gap: 40px;
  }

  .hero h1 {
    font-size: 2.2rem;
    letter-spacing: -0.5px;
  }

  .hero-image {
    width: 100%;
    height: 320px;
  }

  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .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, 247, 250, 0.98);
    padding: 20px;
    box-shadow: 0 20px 40px rgba(108, 92, 231, 0.1);
    gap: 18px;
    border-bottom: 1px solid rgba(255, 92, 138, 0.1);
  }

  .main-nav.open a { font-size: 1rem; }

  .nav-cta { align-self: flex-start; }

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

  .category-card { padding: 24px 20px; }
}

@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;
    width: 100%;
  }

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

  .hero-image {
    height: 260px;
    padding: 30px 20px;
  }

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

  .cta-banner h2 {
    font-size: 1.6rem;
  }

  .section { padding: 56px 0; }

  .hero p { font-size: 0.95rem; }
}