:root {
	color-scheme: light dark;
}

* {
	margin: 0;
	padding: 0;
}

.icon {
	width: 1em;
	height: 1em;
	vertical-align: -0.15em;
	fill: currentColor;
	overflow: hidden;
}

input,
a,
textarea {
	outline: none;
	text-decoration: none;
	-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

ul,
li {
	list-style: none;
}

body {
	background: light-dark(#ffffff, #000000);
}

/* === 毛玻璃导航栏 === */
header {
  padding: 14px 20px;
  width: calc(100% - 40px - 2px);
  max-width: calc(600px - 0px - 2px);
  height: 30px;
  margin: 0 auto;
  border-radius: 999px;
  
  /* 毛玻璃核心效果 */
  background: light-dark(rgba(255, 255, 255, 0.45), rgba(17, 24, 39, 0.45));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px); /* 兼容 Safari */
  border: 1px solid light-dark(rgba(238, 238, 238, 0.5), rgba(41, 51, 66, 0.5));
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08); /* 更柔和的阴影 */

  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  user-select: none;
  display: flex;
  z-index: 9999;
}

/* 左侧图标容器 */
.header_left {
  flex-grow: 1;
  display: flex;
  gap: 10px;
  position: relative;
}

/* 毛玻璃图标按钮 */
.header_left a {
  border: 1px solid light-dark(rgba(238, 238, 238, 0.6), rgba(41, 51, 66, 0.6));
  background: light-dark(rgba(255, 255, 255, 0.35), rgba(17, 24, 39, 0.35));
  border-radius: 999px;
  display: block;
  width: 28px;
  height: 28px;
  position: relative;
  text-align: center;
  line-height: 28px;
  transition: all 0.25s ease;
}

.header_left a span {
  font-size: 18px;
  color: light-dark(#333333, #AAB1BC);
  transition: color 0.25s ease;
}

.header_left a:hover {
  background: light-dark(rgba(51, 72, 231, 0.15), rgba(51, 72, 231, 0.5));
  border-color: light-dark(rgba(51, 72, 231, 0.2), rgba(51, 72, 231, 0.7));
  transform: translateY(-2px);
}

.header_left a:hover span {
  color: light-dark(#3348e7, #ffffff);
}

/* 右侧链接容器 */
.header_right {
  display: flex;
  gap: 10px;
}

.header_right a {
  display: block;
  line-height: 28px;
  padding: 0 20px;
  border-radius: 999px;
  font-size: 14px;
  transition: all 0.25s ease;
}

/* 右侧次要按钮 (ESign) */
.header_right_1 {
  border: 1px solid light-dark(rgba(238, 238, 238, 0.6), rgba(47, 57, 72, 0.6));
  background: light-dark(rgba(255, 255, 255, 0.35), rgba(31, 41, 55, 0.35));
  color: light-dark(#333333, #AAB1BC);
}

.header_right_1:hover {
  background: light-dark(rgba(51, 72, 231, 0.15), rgba(31, 41, 55, 0.5));
  color: light-dark(#3348e7, #ffffff);
  border-color: light-dark(rgba(51, 72, 231, 0.2), rgba(51, 72, 231, 0.5));
  transform: translateY(-2px);
}

/* 右侧主要按钮 (Email) */
.header_right_2 {
  border: 1px solid rgba(51, 72, 231, 0.5);
  color: #ffffff;
  background: rgba(51, 72, 231, 0.85);
}

.header_right_2:hover {
  background: rgba(51, 72, 231, 1);
  border-color: rgba(51, 72, 231, 0.8);
  transform: translateY(-2px) scale(1.02);
}

.center {
	width: 100%;
	max-width: 600px;
	margin: 0 auto;
	margin-top: 122px;
	margin-bottom: 40px;
}

.center_user {
	display: flex;
	gap: 10px;
}

.center_user img {
	height: 50px;
	border-radius: 10px;
}

.center_user_right {
	position: relative;
}

.center_user_right_1 {
	font-size: 16px;
	font-weight: bold;
}

.center_user_right_2 {
	position: absolute;
	bottom: 0;
	background: light-dark(#F3F3F3, #121728);
	font-size: 12px;
	padding: 3px 10px;
	color: light-dark(#666666, #AAB1BC);
	border-radius: 4px;
	transition: .2s;
	cursor: pointer;
}

.center_user_right_2:hover {
	background: #3348e7;
	color: #ffffff;
}

.center_welcome {
	margin-top: 40px;
}

.center_welcome_1 {
	font-size: 32px;
	font-weight: bold;
	margin-bottom: 10px;
	color: light-dark(#333333, #ffffff);
	line-height: 1.5;
}

.center_welcome_1 .center_welcome_1_name {
	border-radius: 10px;
	font-size: 28px;
	padding: 0 10px;
	margin: 0px 5px 0px 0px;
	background: light-dark(#3348e7, #111926);
	color: light-dark(#ffffff, #AAB1BC);
}

.center_welcome_2 {
	font-size: 14px;
	color: light-dark(#999999, #ACB3BF);
	line-height: 1.5;
}

.center_hover {
	margin: 40px 0px;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 60px;
	user-select: none;
}

.center_hover_book {
	position: relative;
	box-shadow: 0 10px 20px rgba(0, 0, 0, .0);
	transition: .4s;
}

.center_hover_book img {
	display: flex;
}

.center_hover_book_img_1 {
	width: 100%;
}

.center_hover_book_img_2 {
	width: 100%;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 99;
}

.center_hover_book_img_3 {
	width: 100%;
	position: absolute;
	top: 0;
	left: 0;
	z-index: 999;
	opacity: 0.1;
	transition: .4s;
}

.book_icon_shu1,
.book_icon_shu2,
.book_icon_shu3 {
	position: absolute;
	transition: .4s;
	top: 50%;
	transform: translateY(-50%);
	filter: drop-shadow(0px 0px 10px rgba(0, 0, 0, 0.2));
	width: 40%;
}

.book_icon_shu1 {
	left: 10px;
	z-index: 1;
}

.book_icon_shu2 {
	left: 30%;
	z-index: 2;
}

.book_icon_shu3 {
	right: 10px;
	z-index: 3;
}

.center_hover_book:hover .book_icon_shu1 {
	top: 40%;
}

.center_hover_book:hover .book_icon_shu2 {
	top: 35%;
}

.center_hover_book:hover .book_icon_shu3 {
	top: 40%;
}

.center_hover_book:hover .center_hover_book_img_3 {
	opacity: 1;
}

.center_hover_book:hover {
	filter: drop-shadow(0px 20px 10px rgba(65, 71, 238, 0.2));
}

.center_hover_app {
	position: relative;
	box-shadow: 0 10px 20px rgba(0, 0, 0, .0);
	transition: .4s;
}

.center_hover_app img {
	display: flex;
}

.center_hover_app_1 {
	width: 100%;
}

.center_hover_app_2 {
	position: absolute;
	top: 0;
	left: 0;
	z-index: 99;
	width: 100%;
}

.center_hover_app_3 {
	position: absolute;
	top: 0;
	left: 0;
	z-index: 999;
	opacity: .2;
	transition: .4s;
	width: 100%;
}

.center_hover_app_app {
	position: absolute;
	transition: .4s;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	filter: drop-shadow(0px 0px 10px rgba(0, 0, 0, 0.2));
	width: 40%;
}

.center_hover_app:hover .center_hover_app_3 {
	opacity: 1;
}

.center_hover_app:hover .center_hover_app_app {
	top: 40%;
}

.center_hover_app:hover {
	filter: drop-shadow(0px 20px 10px rgba(0, 0, 0, 0.1));
}

.center_exp_title {
    font-size: 22px;    /* 控制整体大小 */
    font-weight: 700;
    color: #333333;
    margin-bottom: 20px;
    display: flex;      /* 让 icon 和文字自然对齐 */
    align-items: center;
    gap: 8px;           /* 图标和文字的间距 */
}

.center_exp_title .iconfont {
    font-size: inherit; /* 跟随父元素大小 */
    line-height: 1;     /* 避免上下留白 */
    display: inline-flex;
    align-items: center;
}

.center_exp_box {
	display: grid;
	grid-template-columns: repeat(6, 1fr);
	gap: 10px;
	margin-top: 20px;
	user-select: none;
}

.center_exp_box_list {
	border: 1px solid light-dark(#ffffff, #000000);
	background: light-dark(#ffffff, #111827);
	border-radius: 20px;
	transition: .2s;
	text-align: center;
	height: 90px;
	width: 100%;
	position: relative;
}

.center_exp_box_list img {
	width: 50%;
	display: flex;
	border-radius: 10px;
	transition: .4s;
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
}

.center_exp_box_list_tc {
	display: none;
	position: absolute;
	z-index: 99;
	top: calc(100% + 10px);
	left: 0;
	width: 160px;
	text-align: left;
	background: light-dark(#FBFAFB, #1F2937);
	padding: 20px;
	border-radius: 20px;
	border: 1px solid light-dark(#eeeeee, #2F3948);
}

.center_exp_box_list_tc_1 {
	font-size: 14px;
	padding-bottom: 10px;
	margin-bottom: 10px;
	border-bottom: 1px solid light-dark(#eeeeee, #2F3948);
	color: light-dark(#333333, #ffffff);
}

.center_exp_box_list_tc_2 {
	font-size: 12px;
	color: light-dark(#999999, #ACB3BF);
}

.center_exp_box_list:hover {
	border: 1px solid light-dark(#eeeeee, #2F3948);
	background: light-dark(#FBFAFB, #1F2937);
}

.center_exp_box_list:hover img {
	width: 55%;
}

.center_exp_box_list:hover .center_exp_box_list_tc {
	display: block;
}

.center_test {
	margin-top: 40px;
}

.center_test_box {
	margin-top: 20px;
	display: grid;
	gap: 20px;
	grid-template-columns: repeat(6, 1fr);
}

.center_test_box_list {
	padding: 4px;
	border: 1px solid light-dark(#eeeeee, #293342);
	background: light-dark(#ffffff, #121728);
	border-radius: 999px;
	position: relative;
}

.center_test_box_list img {
	width: 100%;
	border-radius: 999px;
	display: flex;
}

.center_test_box_list_box {
	width: calc(100% - 8px);
	height: calc(100% - 8px);
	position: absolute;
	top: 4px;
	left: 4px;
	background: rgba(0, 0, 0, .8);
	border-radius: 999px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #ffffff;
	font-size: 12px;
	opacity: 0;
	transition: .4s;
}

.center_test_box_list:hover .center_test_box_list_box {
	opacity: 1;
}

.center_footer {
	margin-top: 40px;
	text-align: center;
	font-size: 12px;
	color: light-dark(#999999, #ACB3BF);
	display: block;
}

.center_project {
	margin-top: 40px;
}

.center_project_box {
	margin-top: 20px;
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}

.center_project_box_list {
	background: light-dark(#ffffff, #121728);
	border: 1px solid light-dark(#eeeeee, #293342);
	border-radius: 20px;
	overflow: hidden;
	transition: .2s;
}

.center_project_box_list:hover {
	background: light-dark(#FBFAFB, #1F2937);
	border: 1px solid light-dark(#eeeeee, #2F3948);
}

.center_project_box_list img {
	width: 100%;
	display: flex;
}

.center_project_box_list_text_biaoqian {
    display: flex;
    flex-wrap: wrap;      /* 允许换行 */
    gap: 6px 4px;         /* 上下间距6px，左右间距4px */
    margin-top: 10px;
}

.center_project_box_list_text_biaoqian span {
    display: inline-block; /* 保持块状 */
    background: light-dark(#eeeeee, #083343);
    font-size: 12px;
    color: light-dark(#666666, #05C4DE);
    padding: 4px 10px;
    user-select: none;
    border-radius: 5px;
    transition: .4s;
}

.center_project_box_list_text_biaoqian span:hover {
    background: #3348e7;
    color: #ffffff;
}
/* 描述/正文 */
.center_theme_box_list_txt_content {     
    font-size: 14px;                       /* 字体大小 */     
    color: light-dark(#555555, #AAAAAA);   /* 文字颜色，浅色/深色模式 */     
    line-height: 1.6;                      /* 行高略大，更易读 */     
    margin: 0 0 12px 0;                     /* 与标题和下方内容间距 */
}

.center_theme {
    margin-top: 40px;
    padding: 0 15px; /* 增加左右内边距，避免移动端贴边 */
}

/* 标题样式优化 */
.center_exp_title {
    font-size: 18px;
    font-weight: 600;
    color: light-dark(#1f2937, #e0e7ff);
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 12px;
    border-bottom: 1px solid light-dark(#e5e7eb, #2d3748);
    margin: 0;
}

.center_exp_title .iconfont {
    color: #3b82f6;
}

.center_theme_box {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); /* 响应式网格 */
    gap: 20px;
}

/* 链接容器样式 */
.center_theme_box_link {
    display: block;
    text-decoration: none;
    border-radius: 16px;
    overflow: hidden;
}

/* 卡片主体样式 */
.center_theme_box_list {
    background: light-dark(#ffffff, #121728);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid light-dark(#e5e7eb, #293342);
    transition: all 0.3s ease;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.04);
    cursor: pointer;
}

/* 卡片悬停效果 */
.center_theme_box_link:hover .center_theme_box_list {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
    border-color: light-dark(#dbeafe, #3b82f6);
}

/* 图片容器 */
.center_theme_box_list_img {
    position: relative;
    aspect-ratio: 16 / 9; /* 保持图片比例 */
    overflow: hidden;
}

/* 图片样式 */
.center_theme_box_list_img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* 图片悬停放大效果 */
.center_theme_box_link:hover .center_theme_box_list_img img {
    transform: scale(1.05);
}

/* 图片覆盖层 - 悬停时显示 */
.img_overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.6));
    padding: 20px 15px 10px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.center_theme_box_link:hover .img_overlay {
    transform: translateY(0);
}

/* 阅读更多文字 */
.read_more {
    color: #ffffff;
    font-size: 14px;
    display: inline-block;
    padding: 4px 10px;
    background: rgba(59, 130, 246, 0.8);
    border-radius: 20px;
    backdrop-filter: blur(3px);
}

/* 文字内容区 */
.center_theme_box_list_txt {
    padding: 20px;
}

/* 标题样式 */
.center_theme_box_list_txt_title {
    font-size: 18px;
    font-weight: 700;
    color: light-dark(#1f2937, #e0e7ff);
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color 0.2s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.center_theme_box_link:hover .center_theme_box_list_txt_title {
    color: #3b82f6;
}

/* 描述文字 */
.center_theme_box_list_txt_miaoshu {
    font-size: 14px;
    color: light-dark(#6b7280, #aab1bc);
    line-height: 1.7;
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2; /* 限制显示2行 */
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 移动端适配 */
@media (max-width: 600px) {
    .center_theme {
        margin-top: 30px;
    }
    
    .center_theme_box {
        gap: 15px;
    }
    
    .center_theme_box_list_txt {
        padding: 16px;
    }
    
    .center_theme_box_list_txt_title {
        font-size: 16px;
    }
}

.center_project_box_list_text {
	padding: 20px;
}

.center_theme_box_list:hover {
	background: light-dark(#FBFAFB, #1F2937);
}

/* === 文章卡片容器 === */
.poster {
  width: 100%;
  max-width: 600px;
  margin: 20px auto 40px;
  padding: 25px;
  background: light-dark(#ffffff, #111728);
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.poster:hover {
  transform: translateY(-2px);
}

/* === 文章头部信息 (作者/时间) === */
.poster_header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: light-dark(#6b7280, #a5b4fc);
  user-select: none;
  padding-bottom: 8px;
  border-bottom: 1px dashed light-dark(#e5e7eb, #374151);
}

.poster_header .iconfont {
  font-size: 15px;
  transition: color 0.2s ease;
}

.poster_header:hover .iconfont {
  color: light-dark(#3b82f6, #93c5fd);
}

.poster_header p {
  font-size: 13px;
}

/* === 文章标题 === */
.poster_title {
  margin: 16px 0 14px;
  font-size: 24px;
  font-weight: 700;
  color: light-dark(#1f2937, #e0e7ff);
  letter-spacing: 0.3px;
  line-height: 1.3;
  position: relative;
  padding-bottom: 12px;
}

.poster_title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  border-radius: 3px;
}

/* === 文章数据 (分类/阅读量) === */
.poster_data {
  display: flex;
  font-size: 12px;
  color: light-dark(#9ca3af, #818cf8);
  margin-bottom: 8px;
}

.poster_data p:first-child {
  flex-grow: 1;
}

.poster_data p:last-child {
  display: flex;
  gap: 12px;
}

.poster_data span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* === 文章正文内容区 === */
.poster_center {
  margin-top: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: light-dark(#374151, #e5e7eb);
}

.poster_center p {
  margin-bottom: 14px;
  text-align: justify;
}

/* 图片 */
.poster_center p img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 20px auto;
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  image-rendering: -webkit-optimize-contrast;
  border: 4px solid light-dark(#f9fafb, #1f2937);
}

.poster_center p img:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

/* 图片说明文字 */
.poster_center p img + em {
  display: block;
  text-align: center;
  font-size: 12px;
  color: light-dark(#9ca3af, #94a3b8);
  margin-top: -15px;
  margin-bottom: 15px;
  font-style: normal;
}

/* 引用块 */
.poster_center blockquote {
  padding: 16px 20px;
  margin: 20px 0;
  background: light-dark(#f0fdf4, #0f172a);
  border-left: 4px solid #34d399;
  border-radius: 0 10px 10px 0;
  color: light-dark(#065f46, #6ee7b7);
  font-style: italic;
  position: relative;
}

.poster_center blockquote::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 30px;
  color: rgba(52, 211, 153, 0.3);
  font-family: Georgia, serif;
}

/* 标题 */
.poster_center h1,
.poster_center h2,
.poster_center h3 {
  margin: 30px 0 15px;
  font-weight: 600;
  color: light-dark(#111827, #c7d2fe);
  position: relative;
  padding-left: 12px;
}

.poster_center h1::before,
.poster_center h2::before,
.poster_center h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 60%;
  width: 3px;
  background: #3b82f6;
  border-radius: 3px;
}

.poster_center h1 { font-size: 22px; }
.poster_center h2 { font-size: 20px; }
.poster_center h3 { font-size: 18px; }

/* 列表 */
.poster_center ul,
.poster_center ol {
  margin: 15px 0;
  padding-left: 25px;
}

.poster_center ul li,
.poster_center ol li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 5px;
}

.poster_center ul li { 
  list-style: none; 
}

.poster_center ul li::before {
  content: '•';
  position: absolute;
  left: -18px;
  color: #3b82f6;
  font-weight: bold;
}

.poster_center ol li { 
  list-style: none;
  counter-increment: item;
}

.poster_center ol li::before {
  content: counter(item) ".";
  position: absolute;
  left: -22px;
  color: #3b82f6;
  font-weight: 500;
}

/* 行内代码 */
.poster_center p code,
.poster_center li code {
  padding: 2px 6px;
  margin: 0 2px;
  background: light-dark(#f3f4f6, #1f2937);
  border-radius: 6px;
  color: light-dark(#d97706, #fbbf24);
  font-size: 0.9em;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05) inset;
}

/* 代码块 */
.poster_center pre {
  margin: 20px 0;
  padding: 16px;
  background: light-dark(#fafafa, #0f172a);
  border: 1px solid light-dark(#e5e7eb, #1f2937);
  border-radius: 10px;
  overflow-x: auto;
  position: relative;
  transition: all 0.2s ease;
}

.poster_center pre:hover {
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.poster_center pre::before {
  content: 'Code';
  position: absolute;
  top: 5px;
  right: 10px;
  font-size: 10px;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.poster_center pre code {
  color: light-dark(#111827, #e5e7eb);
  font-size: 13px;
}

/* 表格 */
.poster_center table {
  width: 100%;
  margin: 20px 0;
  border-collapse: collapse;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.poster_center th,
.poster_center td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid light-dark(#e5e7eb, #1f2937);
}

.poster_center th {
  background: light-dark(#fafafa, #111827);
  color: light-dark(#111827, #e0e7ff);
  font-weight: 600;
  user-select: none;
  position: sticky;
  top: 0;
}

.poster_center tbody tr:hover td {
  background: light-dark(#f0fdfa, #111827);
}

/* 分割线 */
.poster_center hr {
  margin: 30px 0;
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, light-dark(#e5e7eb, #1f2937), transparent);
  opacity: 0.6;
}

/* === 文章底部信息 (标签/版权) === */
.poster_center_footer {
  margin: 30px 0 10px;
  padding: 15px;
  background: light-dark(#f9fafb, #1f2937);
  border-radius: 10px;
  user-select: none;
}

.poster_center_footer_text {
  font-size: 12px;
  color: light-dark(#9ca3af, #a5b4fc);
}

.poster_center_footer_text p {
  margin-bottom: 6px;
}

/* 标签样式 */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.tags a {
  display: inline-block;
  padding: 4px 10px;
  background: light-dark(#eff6ff, #1e3a8a);
  color: light-dark(#3b82f6, #93c5fd);
  font-size: 12px;
  border-radius: 20px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.tags a:hover {
  background: light-dark(#dbeafe, #3b82f6);
  color: light-dark(#2563eb, #ffffff);
  transform: translateY(-2px);
}

/* === 评论区容器 === */
.poster_comments {
  margin-top: 30px;
  background: linear-gradient(180deg, #e0f2fe, #dbeafe);
  padding: 15px 15px 20px;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.poster_comments::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
}

/* 评论区标题 */
.poster_comments_header {
  display: flex;
  align-items: center;
}

.poster_comments_header p {
  line-height: 36px;
  font-size: 13px;
  color: #0369a1;
}

.poster_comments_header p:first-child {
  flex-grow: 1;
  font-weight: 600;
  font-size: 15px;
}

/* === 评论列表 === */
.comment-list {
  background: #ffffff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  margin-top: 10px;
}

.comment-list li {
  padding-top: 18px;
  margin-top: 18px;
  border-top: 1px solid #f3f4f6;
  transition: transform 0.2s ease;
}

.comment-list li:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: none;
}

.comment-list li:hover {
  transform: translateX(5px);
}

/* 评论作者信息 */
.comment-author {
  display: flex;
  align-items: center;
  gap: 8px;
}

.comment-author .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #f0f9ff;
}

.comment-author .fn a,
.comment-author cite {
  font-size: 14px;
  color: #1e3a8a;
  font-style: normal;
  font-weight: 600;
}

.comment-meta {
  margin-left: 40px;
  margin-top: 4px;
}

.comment-meta a {
  font-size: 12px;
  color: #6b7280;
  text-decoration: none;
}

.comment-meta a:hover {
  color: #3b82f6;
  text-decoration: underline;
}

/* 嵌套评论 */
.comment-children .comment-list {
  background: #f8fafc !important;
  margin-top: 12px;
  padding: 15px;
  border-left: 2px solid #dbeafe;
}

/* 评论内容 */
.comment-content {
  margin-top: 8px;
  font-size: 14px;
  color: #374151;
  line-height: 1.6;
  padding: 10px;
  border-radius: 6px;
  transition: background 0.2s ease;
}

.comment-content:hover {
  background: light-dark(#f9fafb, #1f2937);
}

/* === 分页导航 === */
.page-navigator {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  list-style: none;
  padding: 10px 0;
}

.page-navigator li a {
  display: block;
  padding: 5px 12px;
  color: #3b82f6;
  font-size: 12px;
  border-radius: 6px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.page-navigator li a:hover {
  background: #dbeafe;
  color: #2563eb;
  transform: translateY(-2px);
}

.current a {
  background: #3b82f6 !important;
  color: #ffffff !important;
}

/* === 评论输入框区域 === */
#comments {
  margin-top: 20px;
}

.comment_bbb {
  background: light-dark(#f9fafb, #121728);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}

.comment-top p textarea {
  width: calc(100% - 22px);
  min-height: 120px;
  margin-bottom: 12px;
  padding: 12px;
  background: light-dark(#ffffff, #1f2937);
  border: 1px solid light-dark(#e5e7eb, #2d3748);
  border-radius: 8px;
  outline: none;
  font-size: 14px;
  resize: vertical;
  transition: all 0.25s ease;
}

.comment-top p textarea:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.2);
  transform: translateY(-2px);
}

/* 评论表单底部 (输入框/按钮) */
.comment-bottom,
.comment-user-bottom {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.comment-bottom input {
  flex-grow: 1;
  padding: 10px 12px;
  background: light-dark(#ffffff, #1f2937);
  border: 1px solid light-dark(#e5e7eb, #2d3748);
  border-radius: 8px;
  outline: none;
  font-size: 14px;
  transition: all 0.25s ease;
}

.comment-bottom input:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.2);
}

.comment-bottom button,
.comment-user-bottom button {
  border: 0;
  padding: 10px 20px;
  background: #3b82f6;
  color: #ffffff;
  font-size: 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.comment-bottom button:hover,
.comment-user-bottom button:hover {
  background: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* 评论区其他链接按钮 */
.comment-user-bottom-1,
.comment-user-bottom a {
  display: block;
  height: 38px;
  padding: 0 12px;
  background: #ffffff;
  color: #1f2937;
  font-size: 14px;
  line-height: 38px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.comment-user-bottom a:hover {
  background: #f3f4f6;
  transform: translateY(-2px);
}

/* === 上一篇/下一篇 === */
.post-near {
  margin-top: 30px;
  font-size: 14px;
  color: #6b7280;
  text-align: center;
  display: flex;
  justify-content: space-between;
  padding: 0 10px;
}

.post-near a {
  color: #3b82f6;
  text-decoration: none;
  padding: 5px 10px;
  border-radius: 6px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-near a:hover {
  color: #2563eb;
  background: #eff6ff;
  transform: translateY(-2px);
}

.post-near .prev {
  justify-content: flex-start;
}

.post-near .next {
  justify-content: flex-end;
}

/* 移动端适配优化 */
@media (max-width: 600px) {
  .poster {
    padding: 18px;
    margin: 15px 10px 30px;
    border-radius: 12px;
  }
  
  .poster_title {
    font-size: 22px;
  }
  
  .poster_center {
    font-size: 14px;
  }
  
  .poster_center p img {
    border-radius: 10px;
    margin: 15px auto;
    border-width: 3px;
  }
  
  .poster_comments {
    padding: 12px 12px 15px;
  }
  
  .comment-list {
    padding: 15px;
  }
  
  .comment_bbb {
    padding: 15px;
  }
  
  .post-near {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
  
  .post-near .next {
    justify-content: flex-start;
  }
}

/* === 页脚备案信息样式 (修复版) === */
.footer-beian {
  /* 1. 基础 Flex 布局，确保在一行 */
  display: flex;
  align-items: center; /* 2. 关键：让图片和文字在垂直方向完全居中对齐 */
  justify-content: center; /* 水平居中 */
  gap: 8px; /* 图片与文字的间距 */

  /* 其他样式 */
  padding: 15px 0;
  font-size: 12px;
  color: light-dark(#9ca3af, #a5b4fc);
}

/* 强制图片为块级元素，并消除任何潜在的间隙 */
.footer-beian img {
  display: block;
  width: 18px;
  height: 18px;
  object-fit: contain;
  vertical-align: middle; /* 额外保险，防止基线对齐问题 */
}

.footer-beian .center_footer {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-beian .center_footer:hover {
  color: light-dark(#3b82f6, #93c5fd);
  text-decoration: underline;
}