/* 全局变量 */
:root {
    --primary-color: #4CAF50;
    --secondary-color: #b2d8b2;
    --text-color: #333;
    --background-color: #fff;
    --transition-speed: 0.3s;
}

/* 深色模式变量 */
[data-theme="dark"] {
    --primary-color: #45a049;
    --secondary-color: #2c662c;
    --text-color: #e1e1e1;
    --background-color: #1a1a1a;
}

/* 基础样式 */
body {
    font-family: 'SimSun', serif;
    margin: 0;
    padding: 0;
    background: url("../images/background_2.jpg?v=1.2.5") no-repeat center center fixed;
    background-size: 88%;
    color: var(--text-color);
    position: relative;
    z-index: 0;
    transition: color var(--transition-speed);
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-color);
    opacity: 0.6;
    z-index: -1;
    transition: background-color var(--transition-speed);
}

/* 容器样式 */
.container {
    width: 80%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    animation: fadeIn 1s ease-in;
}

/* 导航栏样式 */
.navbar-container {
    width: 80%;
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--secondary-color);
    border-radius: 0 0 10px 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--transition-speed);
}

.navbar {
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    display: inline-block;
    color: var(--text-color);
    padding: 14px 20px;
    text-decoration: none;
    transition: all var(--transition-speed);
    position: relative;
}

.navbar a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all var(--transition-speed);
}

.navbar a:hover::after {
    width: 100%;
    left: 0;
}

.navbar a.active {
    background-color: var(--primary-color);
    color: white;
}

/* 个人资料部分 */
.profile {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    padding: 27px 20px 17px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.profile img {
    height: 180px;
    width: auto;
    margin-right: 25px;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.profile img:hover {
    transform: scale(1.05);
}

.profile-info {
    max-width: 600px;
}

.profile-info h1 {
    margin: 0;
    font-size: 2em;
    color: var(--text-color);
}

.profile-info p {
    margin: 10px 0;
    line-height: 1.6;
}

/* 段落内普通超链接（非列表项） */
.profile-info a,
.content a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-speed);
}

.profile-info a:visited,
.content a:visited {
    color: inherit;
}

.profile-info a:hover,
.content a:hover {
    color: var(--primary-color);
}

/* 内容区块样式 */
.sections {
    margin-bottom: 30px;
    padding: 27px 20px 17px 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-speed);
}

.sections:hover {
    transform: translateY(-5px);
}

.sections a {
    text-decoration: none;
    color: var(--text-color);
    transition: color var(--transition-speed);
}

.sections a:hover {
    color: var(--primary-color);
}

.sections h2 {
    margin: 0 0 15px 0;
    color: var(--text-color);
}

.sections ul {
    list-style: none;
    padding: 0;
}

.sections li {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
    border-radius: 5px;
    transition: all var(--transition-speed);
}

.sections li:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.sections li a {
    text-decoration: none;
    color: var(--text-color);
    transition: color var(--transition-speed);
}

.sections li a:hover {
    color: var(--primary-color);
}

/* 浮动按钮整体容器（默认在导航栏右侧，通过 anchor 放置） */
.float-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 主题切换按钮 */
.theme-switch {
    position: fixed;
    right: 70px;
    bottom: 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: all var(--transition-speed);
}

.theme-switch:hover {
    transform: scale(1.1);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 语言切换按钮组 */
.language-switch {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 15px;
}

.language-switch .globe-icon {
    color: var(--text-color);
    margin-right: 8px;
    font-size: 1.1em;
}

.language-btn-group {
    display: flex;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2px;
}

.language-btn {
    border: none;
    background: none;
    color: var(--text-color);
    padding: 5px 10px;
    cursor: pointer;
    font-family: 'SimSun', serif;
    font-size: 0.9em;
    border-radius: 18px;
    transition: all var(--transition-speed);
}

.language-btn.active {
    background: var(--primary-color);
    color: white;
}

.language-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.2);
} 

/* 浮动语言切换（主要给移动端使用，位置在 mobile.css 里定义） */
.language-float {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px 10px;
    border-radius: 999px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    user-select: none;
    transition: transform var(--transition-speed);
}

.language-float:hover {
    transform: scale(1.05);
}

.language-float .globe-icon {
    color: white;
    margin: 0;
    font-size: 1em;
}

.language-float .language-btn-group {
    display: flex;
    background: rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    padding: 2px;
}

.language-float .language-btn {
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    cursor: pointer;
    font-family: 'SimSun', serif;
    font-size: 0.85em;
    border-radius: 999px;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.language-float .language-btn.active {
    background: rgba(255, 255, 255, 0.95);
    color: #1a1a1a;
}

.aligncenter {
    clear: both;
    display: block;
    margin: auto;
} /*图片水平居中类*/

figure {
    text-align: center;
    padding: 10px;
    margin: auto;
  }

figcaption {
   margin-top: 10px; /* 数值越大，间距越大 */
}

.bigger {
    font-size: larger;
  }