/* main.css - 全局栅格布局、导航与响应式设计 */

.site-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px;
  position: relative;
  z-index: 10;
}

/* 头部导航栏设计 */
header {
  margin-bottom: 30px;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  border-radius: 20px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-pink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: white;
  box-shadow: inset 2px 2px 4px rgba(255,255,255,0.4), 2px 2px 6px rgba(229,194,200,0.8);
  animation: logoPulse 4s infinite ease-in-out;
}

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

.nav-links {
  display: flex;
  gap: 16px;
}

.nav-btn {
  padding: 12px 24px;
  font-size: 0.95rem;
  gap: 8px;
  border-radius: 14px;
  position: relative;
  overflow: hidden;
}

.nav-btn.active {
  box-shadow: var(--shadow-active);
  color: var(--accent-pink-dark);
}

.nav-btn i {
  font-size: 1.1rem;
}

/* 主栅格布局：左侧侧边栏(大屏2.5/3), 右侧内容区(大屏7.5/10) */
.main-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 30px;
  align-items: start;
}

/* 侧边栏小部件层叠容器 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 30px;
  position: sticky;
  top: 24px;
}

/* 内容板块主容器 */
.content-area {
  min-height: 500px;
}

.page-section {
  display: none; /* 默认隐藏所有页面板块 */
  animation: sectionBouncyPop 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.page-section.active {
  display: block;
}

@keyframes sectionBouncyPop {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.97);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 底部声明 */
footer {
  text-align: center;
  padding: 40px 0 20px;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.footer-btn {
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 8px;
}

/* 移动端响应式布局 */
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: static;
  }
  
  .navbar {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
  }
  
  .nav-links {
    width: 100%;
    justify-content: space-around;
  }
  
  .nav-btn {
    padding: 10px 14px;
    font-size: 0.85rem;
    flex: 1;
    text-align: center;
  }
}