/* ================= 变量 ================= */
:root {
    --bg: url("/static/img/bg.jpg") no-repeat center/cover fixed;
    --card: rgba(255, 255, 255, 0.2);
    --text: #2b97bc;
    --primary: #2b97bc;
    --radius: 8px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
/* ================= 基础 reset ================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}
a {
    color: var(--primary);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
/* ================= 布局 ================= */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}
/* ================= 导航 ================= */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: var(--shadow);
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: var(--radius);
}
.nav-brand {
    font-size: 1.4rem;
    font-weight: 600;
}
.nav-links a {
    margin-left: 15px;
    font-size: .95rem;
    opacity: .9;
}
.nav-links a:hover {
    opacity: 1;
}
/* ================= 卡片通用 ================= */
.card {
    background: var(--card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: var(--shadow);
    padding: 25px;
    margin-bottom: 20px;
    border-radius: var(--radius);
}
.center-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}
/* ================= 文章页专用 ================= */
.card-content {
    line-height: 1.8;
    padding: 0 20px;
}
.card-content p {
    margin-bottom: 1em;
}
.post-card {
    max-width: 900px;
    padding: 40px 50px;
    border-radius: 12px;
    min-height: 60vh;
}
/* ================= 按钮 ================= */
.btn {
    display: inline-block;
    padding: 8px 16px;
    background: #fff;
    color: #667eea;
    border-radius: var(--radius);
    font-size: .95rem;
    transition: background .3s;
    text-decoration: none !important;
}
.btn:hover {
    background: #f0f4ff;
}
.atn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 4px;
    padding: 8px 16px;
    font-size: .9rem;
    border-radius: 20px;
    background: #fff;
    color: #667eea !important;
    box-shadow: var(--shadow);
    transition: transform .2s, background .3s;
    text-decoration: none !important;
    white-space: nowrap;
}
.atn:hover {
    background: #f0f4ff;
    transform: translateY(-2px);
}
.center-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
/* ================= 列表 ================= */
.post-list {
    list-style: none;
    padding-left: 0;
}
.post-list li {
    margin: 10px 0;
}
/* ================= 底栏 ================= */
.footer {
    text-align: center;
    padding: 20px;
    font-size: .9rem;
    opacity: .7;
}
/* ================= 头图 ================= */
.hero {
    height: 60vh;
    background: none;              /* 去掉渐变，用 body 大图 */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fafafa;
}
.hero-title {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.hero-sub {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: .9;
}
.hero-btn {
    display: inline-block;
    padding: 12px 32px;
    background: #fff;
    color: #6366f1;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
    transition: transform .3s;
    text-decoration: none !important;
}
.hero-btn:hover {
    background: #f0f4ff;
    transform: translateY(-3px);
}
/* ===== 文章页返回按钮 ===== */
.back-lint {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 30px;
    padding: 8px 18px;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    color: #db98e6;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.2s, background 0.3s;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.back-lint:hover {
    background: #fff;
    transform: translateY(-2px);
}
/* 弹幕式滚动音乐名  */
.track-danmaku-container {
    width: 160px;        /* 匹配播放器宽度 */
    height: 24px;        /* 固定高度，适配18px字体 */
    overflow: hidden;     /* 隐藏溢出内容 */
    margin: 0 auto 8px;   /* 居中+底部间距 */
    position: relative;   /* 相对定位，作为滚动容器 */
}
.track-danmaku {
    white-space: nowrap;
    font-size: 18px;
    line-height: 24px;   /* 文字垂直居中 */
    color: #5695ea;      /* 强制文字颜色，避免和背景融合 */
    position: absolute;   /* 绝对定位，基于容器滚动 */
    left: 0;
    top: 0;
    /* 核心：移除 alternate，改为单向无限滚动 */
    animation: scroll-text 8s linear infinite;
}
/* 左→右滚动关键帧：从左侧进入→右侧消失→重新从左侧出现 */
@keyframes scroll-text {
    0% {
        transform: translateX(-100%);  /* 初始：文字完全在容器左侧外 */
    }
    100% {
        transform: translateX(100%); /* 结束：文字完全在容器右侧外 */
    }
}
/* 控制按钮布局 */
#music-player .controls button {
    display: block;
    width: 120px;
    margin: 4px auto;
    padding: 6px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
}
/* 加载动画 */
body.pjax-loading {
  cursor: progress;
  opacity: .9;
  transition: opacity .2s;
}
/* 主题切换按钮（仅红框位置） */
.theme-toggle{
  margin-left:12px;                 /* 与左侧链接保持一点距离 */
  background:var(--card-bg);
  border:1px solid var(--border-color);
  color:var(--text-color);
  border-radius:50%;
  width:20px;
  height:13px;
  display:inline-flex;              /* 让按钮在行内对齐，不破坏原flex */
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background .3s, transform .2s;
}
.theme-toggle:hover{
  background:var(--toggle-hover);
  transform:scale(1.1);
}
.theme-toggle svg{
  width:18px;
  height:18px;
  transition:opacity .3s, transform .3s;
}
.theme-toggle .sun-icon{opacity:1;position:absolute;}
.theme-toggle .moon-icon{opacity:0;position:absolute;transform:rotate(90deg);}
[data-theme="dark"] .theme-toggle .sun-icon{opacity:0;transform:rotate(-90deg);}
[data-theme="dark"] .theme-toggle .moon-icon{opacity:1;transform:rotate(0);}
/* 锁定文章页文字色 */
.post-card,
.post-card .card-content {
    color: #f64628 !important;
}
.post-card blockquote {          /*  blockquote  */
    color: #9e4519 !important;
}