/* ===== 极简博客样式表 v1.2 ===== */
:root {
  --primary: #2D2D2D;    /* 主文本色 */
  --secondary: #7F7F7F;  /* 辅助文本色 */
  --accent: #5BCB7D;     /* 强调色 */
  --bg: #FFFFFF;         /* 背景色 */
  --gap: 2rem;           /* 通用间距 */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94); /* 动画曲线 */
  --border: 1px solid rgba(45, 45, 45, 0.1);
  --draft: #FF9500;
  --pending: #007AFF;
  --published: #5BCB7D;
  --reject: #FF3B30;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    --category-color-1: #5BCB7D; /* 文档工具 */
    --category-color-2: #FF9500; /* 图片工具 */
    --category-color-3: #007AFF; /* 开发工具 */
    --category-color-4: #5856D6; /* 多媒体工具 */
    --category-color-5: #FF2D55; /* 网络工具 */
    --category-color-6: #8E8E93; /* 其他工具 */
}

/* ===== 基础重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* ===== 交互增强 ===== */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

a:hover { color: var(--accent); }

body {
  font: 1em/1.6 'Helvetica Neue', sans-serif;
  color: var(--primary);
  background: var(--bg);
  opacity: 0; /* GSAP淡入控制点 */
}

/* ===== 布局系统 ===== */
.container {
  width: 88%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== 导航栏样式 ===== */
header {
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(45,45,45,0.1);
  position: relative;
}

.logo {
    --size: clamp(3rem, 5vw, 6rem); /* 动态尺寸 */
    display: grid;
    aspect-ratio: 1; /* 强制正方形 */
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    width: 60px;
    height: 60px;
}

.logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    image-rendering: -webkit-optimize-contrast;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  z-index: 999;                        /* 确保在顶层 */
}

.hidden-visibility {
    visibility: hidden;
}

/* ===== 汉堡菜单组件 ===== */
.hamburger {
  display: none;
  background: transparent;
  border: 0;
  padding: 8px;
  cursor: pointer;
  z-index: 1000;
}

.hamburger .line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  margin: 5px 0;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

/* 激活状态动画 */
.hamburger.active .line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active .line:nth-child(2) {
  opacity: 0;
}
.hamburger.active .line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 关闭菜单 */
.close-menu {
    position: absolute;
    top: 24px;
    right: 30px;
    color: #fff;
    font-size: 3em;
    background: none;
    border: none;
    cursor: pointer;
    transition: opacity 0.3s;
    padding: 8px;
    z-index: 1000;
}
/* 关闭菜单样式 */
.close-menu .line {
  display: block;
  width: 24px;
  height: 2px;
  /*background: var(--primary);*/
  background: #fff;
  margin: 5px 0;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.close-menu .line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.close-menu .line:nth-child(2) {
  opacity: 0;
}
.close-menu .line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 全屏菜单样式 */
.fullscreen-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(15, 15, 15, 0.96);
    /*background: rgba(15, 15, 15, 0.96);*/
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.fullscreen-menu.active {
    visibility: visible;
    opacity: 1;
}
.menu-content {
    transform: translateY(30px);
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
.active .menu-content {
    transform: translateY(0);
}

/* 导航链接动效 */
.menu-content a {
    color: white;
    font-size: 2.5em;
    margin: 15px 0;
    opacity: 0.8;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    display: block;
    text-align: center;
}
.active .menu-content a {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 智能页脚样式 ===== */
.footer {
    padding: 2rem 0;
    border-top: 1px solid rgba(45,45,45,0.1);
    transition: all 0.3s ease;
    bottom: 0;
    left: 0;
    right: 0;
    color: var(--secondary);


}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    align-items: center;
}
.legal-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    justify-content: flex-end;
    font-size: 14px;
}
.legal-links img {
    width: 20px;
    vertical-align: middle;
}
.beian-icon {
    height: 1.2em;
    vertical-align: middle;
    margin-right: 0.5rem;
    filter: brightness(0.95);
}
.divider {
    opacity: 0.3;
    padding: 0 0.5rem;
}


/* ===== 响应式设计 - 移动端优先 ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    /* height: 100vh; */
    /* padding: 6rem 2rem; */
    height: calc(100vh - env(safe-area-inset-top)); /* 安全区域适配 */
    padding-top: max(env(safe-area-inset-top), 1.5rem);
    background: var(--bg);
    flex-direction: column;
    box-shadow: -4px 0 20px rgba(0,0,0,0.05);
    transition: right 0.4s var(--ease);
  }

  .hamburger { display: block; }

  /* 菜单展开时锁定滚动 */
  body.menu-open { overflow: hidden; }

  /* ===== 页脚 ===== */
  .footer-grid {
      text-align: center;
  }
  .legal-links {
      flex-direction: column;
      justify-content: center;
      margin-top: 1rem;
  }
  .divider {
      display: none;
  }

}