/* === Reset & Base Font === */
* {
  margin: 0;
  padding: 0;
  font-family: "Roboto Flex", sans-serif;
}

body {
  width: 100vw;
  height: 100vh;
  overflow-x: hidden;
  display: flex;
}


/* === NAV Sidebar === */
#nav {
  flex: 0.3;
  display: flex;
  flex-direction: column;
  padding-left: 80px; /* ← 加大左侧内边距 */
  padding-right: 50px;
}


/* === Profile Icon === */
#nav .icon img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
}

/* === Link Navigation === */
#nav .link {
  margin-top: 5vh;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  font-size: 14px;
  font-weight: 300;
}

.link div {
  cursor: pointer;
  transition: font-weight 0.3s ease;
}

.link div:hover,
.link .active {
  font-weight: 700;
  color: black;
}

/* === Logo Icon Group === */
#nav .logo {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 5vh; /* 稍微拉远一些，让图标区更舒展 */
}

.logo svg {
  stroke: #000;
  transition: stroke 0.3s ease;
}

body.dark .logo svg {
  stroke: #fff;
}

.logo svg:hover {
  stroke: #888;
}

/* === Link 样式 (备用 a 标签用法) === */
.link a {
  font-weight: normal;
  text-decoration: none;
  color: black;
  margin-bottom: 1rem;
  display: block;
  transition: font-weight 0.3s;
}

.link a:hover,
.link a.active {
  font-weight: bold;
}

/* === 图标 hover 颜色 for <i> 元素 (备用) === */
a i:hover {
  color: #6b7280 !important; /* Tailwind gray-500 */
}

/* === Main Content Area === */
#main {
  display: flex;
  flex: 0.7;
  flex-wrap: wrap;
  gap: 20px; /* 图之间间距 */
  justify-content: flex-start;
  margin-top: 40px;
  padding: 0 20px; /* 左右留白 */
}

body {
  width: 100vw;
  height: 100vh;
  overflow-x: hidden;
  display: flex;
  padding: 40px; /* 四周留白 */
  box-sizing: border-box;
  flex-direction: column;
}


.wrapper {
  flex: 1;
  display: flex;
  flex-direction: row; /* 原来 body 的效果移过来 */
  padding: 40px;
  box-sizing: border-box;
}


#nav {
  font-family: 'Roboto Flex', sans-serif;
}

/* 图标默认黑色，hover 时变灰 */
.icon-link i {
  color: black;
  transition: color 0.3s ease;
  text-decoration: none; /* 确保无下划线 */
}

.icon-link i:hover {
  color: #6b7280; /* Tailwind 的 gray-500 */
}

/* 去除链接下划线（双重保险） */
.icon-link {
  text-decoration: none;
}


.page-footer {
  width: 100%;
  text-align: center;
  margin-top: 50px;
  padding: 20px 0;
  font-size: 14px;
  color: #888;
}