:root {
  --primary-color: #ff5252; /* 香澄的代表色红色 */
  --secondary-color: #ffca28; /* 星星黄 */
  --bg-color: #fffaf0; /* 暖色调原色背景 */
  --text-color: #333;
  --card-bg: rgba(255, 255, 255, 0.85);
}

body {
  margin: 0;
  padding: 0;
  font-family: "Nunito", "M PLUS Rounded 1c", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  background-image:
    radial-gradient(
      circle at 10% 20%,
      rgba(255, 202, 40, 0.15) 0%,
      transparent 30%
    ),
    radial-gradient(
      circle at 90% 80%,
      rgba(255, 82, 82, 0.1) 0%,
      transparent 30%
    ),
    radial-gradient(
      circle at 50% 50%,
      rgba(255, 255, 255, 0.8) 0%,
      transparent 60%
    );
  min-height: 100vh;
  overflow-x: hidden;
}

/* 背景星星动画 */
.stars-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="150" height="150"><path d="M50 10 L60 40 L90 40 L65 60 L75 90 L50 70 L25 90 L35 60 L10 40 L40 40 Z" fill="rgba(255, 202, 40, 0.3)" transform="scale(0.2) translate(100, 100)"/><path d="M50 10 L60 40 L90 40 L65 60 L75 90 L50 70 L25 90 L35 60 L10 40 L40 40 Z" fill="rgba(255, 82, 82, 0.2)" transform="scale(0.15) translate(400, 300)"/></svg>')
    repeat;
  animation: twinkle 4s ease-in-out infinite alternate;
}

@keyframes twinkle {
  0% {
    opacity: 0.3;
    transform: scale(1);
  }
  100% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

.container {
  max-width: 850px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 头部样式 */
.hero {
  position: relative;
  width: 100%;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(255, 82, 82, 0.2);
  background: white;
  transition:
    transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
    box-shadow 0.4s ease;
  border: 3px solid white;
}

.hero-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: center 35%;
  -webkit-user-drag: none; /* Prevent image dragging */
  user-select: none;
}

.pico-img {
  position: fixed;
  bottom: 50px;
  right: 50px;
  width: 140px;
  height: 140px;
  object-fit: contain;
  z-index: 9999;
  cursor: grab; /* Indicate it's draggable */
  filter: drop-shadow(0 10px 15px rgba(255, 82, 82, 0.4));
}

.pico-img:active {
  cursor: grabbing;
}

.hero-content {
  padding: 30px 20px;
  text-align: center;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.95), #ffffff);
  width: 100%;
  box-sizing: border-box;
  border-top: 6px dashed var(--secondary-color);
  position: relative;
}

.stars-decoration {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
}

.star {
  font-size: 2.2rem;
  animation:
    spin 8s linear infinite,
    float 3s ease-in-out infinite alternate;
}

.star-left {
  color: var(--primary-color);
  text-shadow: 0 0 10px rgba(255, 82, 82, 0.5);
}

.star-right {
  color: var(--secondary-color);
  text-shadow: 0 0 10px rgba(255, 202, 40, 0.5);
  animation-delay: -1.5s; /* 错开动画时间 */
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

@keyframes float {
  0% {
    transform: translateY(-5px);
  }
  100% {
    transform: translateY(5px);
  }
}

.main-title {
  font-family: "Fredoka One", "M PLUS Rounded 1c", cursive;
  font-size: 3.5rem;
  margin: 0;
  color: var(--primary-color);
  /* 卡通双层阴影效果 */
  text-shadow:
    3px 3px 0px var(--secondary-color),
    -2px -2px 0px white,
    0 5px 15px rgba(255, 82, 82, 0.4);
  letter-spacing: 2px;
}

.subtitle {
  font-size: 1.3rem;
  color: #ff7675; /* 较柔和的红色 */
  margin-top: 12px;
  font-weight: 800;
}

/* 项目子域名部分 */
.projects-section {
  width: 100%;
  margin-top: 40px;
  padding: 10px;
  box-sizing: border-box;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
  width: 100%;
}

/* 卡片样式：活泼、圆润、带有强烈的色彩感 */
.project-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  background: var(--card-bg);
  border-radius: 25px;
  text-decoration: none;
  color: white;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 3px solid rgba(255, 255, 255, 0.5);
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: all 0.5s ease;
}

.project-card:hover {
  transform: translateY(-10px) scale(1.03);
  border-color: white;
}

.project-card:hover::after {
  animation: shine 0.7s;
}

@keyframes shine {
  100% {
    left: 200%;
  }
}

.project-title {
  font-family: "Fredoka One", "M PLUS Rounded 1c", cursive;
  font-size: 2rem;
  margin: 0 0 10px 0;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.25);
}

.project-desc {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
  opacity: 0.95;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

/* 页脚 */
.footer {
  margin-top: 60px;
  margin-bottom: 30px;
  text-align: center;
  color: #ff7675;
  background: rgba(255, 255, 255, 0.6);
  padding: 15px 30px;
  border-radius: 30px;
  font-weight: bold;
}

.footer p {
  margin: 5px 0;
}

.copyright {
  font-size: 0.95rem;
  color: #999;
  font-weight: normal;
}

/* 动画：项目卡片载入 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式调整 */
@media (max-width: 650px) {
  .main-title {
    font-size: 2.5rem;
  }
  .hero-image {
    height: 250px;
  }
  .project-card {
    padding: 25px 15px;
  }
  .project-title {
    font-size: 1.6rem;
  }
}