:root {
  --pink: #FF69B4;
  --pink-light: #FFB6C1;
  --yellow: #FFD700;
  --yellow-light: #FFFACD;
  --blue: #87CEEB;
  --blue-light: #B0E0E6;
  --purple: #DDA0DD;
  --purple-light: #E6E6FA;
  --green: #98FB98;
  --green-light: #F0FFF0;
  --bg: #FFF5F8;
  --text: #4A4A4A;
  --white: #FFFFFF;
  --shadow: rgba(255, 105, 180, 0.2);
}

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

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

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

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

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

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  box-shadow: 0 2px 20px var(--shadow);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  transition: all 0.3s ease;
}

.nav-links a:hover {
  background: linear-gradient(135deg, var(--pink-light), var(--purple-light));
  color: var(--white);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: var(--pink);
  border-radius: 3px;
  transition: 0.3s;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 2rem 2rem;
  background: linear-gradient(135deg, var(--pink-light) 0%, var(--purple-light) 25%, var(--blue-light) 50%, var(--green-light) 75%, var(--yellow-light) 100%);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('https://img95.699pic.com/photo/40243/3142.jpg_wh860.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.hero-content {
  text-align: center;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--pink), var(--yellow), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: pulse 2s ease-in-out infinite;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2rem;
  color: var(--text);
}

.hero-image {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  margin: 2rem auto;
  background-image: url('https://pic.616pic.com/ys_bnew_img/00/17/20/a1cpbOtQpy.jpg');
  background-size: cover;
  background-position: center;
  box-shadow: 0 10px 40px var(--shadow);
  animation: float 3s ease-in-out infinite;
  border: 5px solid var(--white);
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  color: var(--white);
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 5px 20px var(--shadow);
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--shadow);
}

.btn-yellow {
  background: linear-gradient(135deg, var(--yellow), var(--pink));
}

.section {
  padding: 5rem 2rem;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.services {
  background: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background: linear-gradient(135deg, var(--pink-light), var(--purple-light));
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 5px 20px var(--shadow);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px var(--shadow);
}

.service-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  animation: float 3s ease-in-out infinite;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--pink);
}

.diet-preview {
  background: linear-gradient(135deg, var(--blue-light), var(--green-light));
}

.diet-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto 3rem;
}

.diet-day {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 5px 20px var(--shadow);
  transition: all 0.3s ease;
  cursor: pointer;
}

.diet-day:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 30px var(--shadow);
}

.diet-day-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.diet-day h4 {
  color: var(--pink);
  margin-bottom: 0.5rem;
}

.diet-day p {
  font-size: 0.9rem;
  color: var(--text);
}

.footer {
  background: linear-gradient(135deg, var(--pink), var(--purple));
  color: var(--white);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
}

.footer h3 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 1.5rem 0;
}

.footer-links a {
  color: var(--white);
  text-decoration: none;
  transition: opacity 0.3s;
}

.footer-links a:hover {
  opacity: 0.8;
}

.diet-page {
  padding-top: 80px;
}

.diet-hero {
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, var(--yellow-light), var(--pink-light));
}

.diet-hero h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.diet-hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
}

.week-plan {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 2rem;
}

.meal-card {
  background: var(--white);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
  transition: all 0.3s ease;
}

.meal-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow);
}

.meal-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px dashed var(--pink-light);
}

.meal-card-icon {
  font-size: 2.5rem;
}

.meal-card h3 {
  color: var(--pink);
  font-size: 1.3rem;
}

.meal-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  background: linear-gradient(135deg, var(--pink-light), var(--purple-light));
  border-radius: 15px;
}

.meal-item-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.meal-item-content h4 {
  color: var(--purple);
  margin-bottom: 0.3rem;
  font-size: 1rem;
}

.meal-item-content p {
  font-size: 0.9rem;
  color: var(--text);
}

.tips-section {
  background: linear-gradient(135deg, var(--green-light), var(--blue-light));
  padding: 3rem 2rem;
  margin-top: 2rem;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 1000px;
  margin: 0 auto;
}

.tip-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px var(--shadow);
}

.tip-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.about-page {
  padding-top: 80px;
}

.about-hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--purple-light), var(--blue-light));
}

.about-hero h1 {
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
}

.about-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: 2rem auto;
  background-image: url('https://ts4.tc.mm.bing.net/th/id/OIP-C.JHe5koBmV7zOAQ4k3PN_JAHaEJ?rs=1&pid=ImgDetMain&o=7&rm=3');
  background-size: cover;
  background-position: center;
  box-shadow: 0 10px 40px var(--shadow);
  border: 5px solid var(--white);
  animation: float 3s ease-in-out infinite;
}

.about-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 2rem;
}

.about-section {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 20px;
  margin-bottom: 2rem;
  box-shadow: 0 5px 20px var(--shadow);
}

.about-section h2 {
  color: var(--pink);
  font-size: 1.8rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.team-member {
  text-align: center;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--pink-light), var(--purple-light));
  border-radius: 15px;
}

.team-avatar {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.team-member h4 {
  color: var(--pink);
  margin-bottom: 0.5rem;
}

.contact-form {
  background: linear-gradient(135deg, var(--pink-light), var(--purple-light));
  padding: 2rem;
  border-radius: 20px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--pink);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--white);
  border-radius: 15px;
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--pink);
  box-shadow: 0 0 0 3px var(--pink-light);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    box-shadow: 0 5px 20px var(--shadow);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.1rem;
  }

  .hero-image {
    width: 200px;
    height: 200px;
  }

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

  .week-grid {
    grid-template-columns: 1fr;
  }
}