* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}
:root {
    /* Miku默认兜底配色，JS运行时覆盖 */
    --dyn-color1: rgb(14, 58, 56);
    --dyn-color2: rgb(220, 248, 246);
    --dyn-rgb1: 14, 58, 56;
    --dyn-rgb2: 220, 248, 246;
    color-scheme: light;
    --page-bg: var(--dyn-color2);
    --text-color: var(--dyn-color1);
    --text-secondary: rgba(var(--dyn-rgb1), 0.72);
    --surface: rgba(255, 255, 255, 0.18);
    --radius: 20px;
    --border: rgba(var(--dyn-rgb1), 0.16);
    --shadow-normal: 0 10px 30px rgba(0, 0, 0, 0.18);
}
/* 修复！主题挂载在html根节点 :root，不要写body */
:root[data-theme="dark"] {
    color-scheme: dark;
    --page-bg: var(--dyn-color1);
    --text-color: var(--dyn-color2);
    --text-secondary: rgba(var(--dyn-rgb2), 0.78);
    --surface: rgba(0, 0, 0, 0.22);
    --border: rgba(var(--dyn-rgb2), 0.14);
    --shadow-normal: 0 10px 30px rgba(0, 0, 0, 0.35);
}
body.empty-state {
    background: rgb(57, 197, 187);
    color: #ffffff;
}
body.empty-state .card {
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.25);
}
body.empty-state .song-title,
body.empty-state .song-artist,
body.empty-state .lyric-wrap {
    color: #ffffff;
}
body.empty-state .back-home {
    color: #ffffff;
}
body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Noto Sans, Helvetica Neue, sans-serif;
    min-height: 100vh;
    background: var(--page-bg);
    color: var(--text-color);
    transition: background 0.4s ease, color 0.4s ease;
}
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}
.back-home {
    color: var(--text-color);
    text-decoration: none;
    font-size: 16px;
}
/* 昼夜按钮：加粗 hover放大1.05 */
#theme {
    font-weight: 700;
    border: 1px solid color-mix(in srgb, var(--text-color) 65%, transparent);
    background: color-mix(in srgb, var(--text-color) 18%, var(--surface));
    color: var(--text-color);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.25s ease, transform 0.18s ease;
}
#theme:hover {
    transform: scale(1.05);
    background: var(--text-color);
    color: var(--page-bg);
    border-color: var(--text-color);
}
.container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: calc(100vh - 80px);
    padding: 12px;
}
.card {
    width: min(920px, calc(100vw - 24px));
    background: color-mix(in srgb, var(--text-color) 12%, var(--page-bg));
    backdrop-filter: blur(14px);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-normal);
    overflow: visible;
}

.radio-inner {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap; /* ✅手机屏幕太窄自动换行，封面跑到上方，不会硬挤一行 */
}
/* media-card 作为cqw容器查询的父级 */
.media-card {
    container-type: inline-size;
    width: 100%;
    display: flex;
    gap: 24px;
    align-items: center;
    padding: 22px;
    border-radius: 20px;
    background: color-mix(in srgb, var(--text-color) 6%, var(--page-bg));
    box-shadow:
        0 8px 28px rgba(0, 0, 0, 0.16),
        0 2px 8px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1px var(--border);
    backdrop-filter: blur(10px);
    transition: background 0.4s ease, box-shadow 0.4s ease;
    min-width: 0;
    overflow: visible;
}
:root[data-theme="dark"] .media-card {
    box-shadow:
        0 8px 28px rgba(0, 0, 0, 0.34),
        0 2px 8px rgba(0, 0, 0, 0.18),
        0 0 22px rgba(80, 220, 210, 0.10);
}
/* 封面容器：强制1:1正方形，基于media‑card容器自动缩放，设置上下限，不会溢出 */
/* 外层容器：固定正方形，控制封面整体大小 */
.radio-cover-wrap {
  width: 240px;
  /* 删除写死height，改用aspect‑ratio强制1:1正方形 */
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  overflow: hidden;
  flex-shrink: 0;
}

.radio-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  opacity: 1;
  transition: opacity 0.35s ease;
}

.radio-inner {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
  justify-content: center; /* 手机换行之后，封面整体居中，和截图UI匹配 */
}

@media (max-width: 640px) {
  .radio-cover-wrap {
    width: 160px;
    /* aspect‑ratio继承1/1，自动得到160px高度，保证正方形 */
  }
}
.radio-right {
    flex: 1 1 0%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
    text-align: center;
}
.text-scroll-mask {
    width: 100%;
    overflow: hidden;
    position: relative;
}
.song-title {
    font-size: clamp(18px, 2.6cqw, 24px);
    font-weight: 700;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    transition: transform 0.18s ease, color 0.4s ease;
    text-align: center;
}
.song-title:hover {
    transform: scale(1.05);
}
.song-artist {
    font-size: clamp(14px, 2cqw, 16px);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    transition: transform 0.18s ease, color 0.4s ease;
    text-align: center;
}
.song-artist:hover {
    transform: scale(1.05);
}
.scroll-marquee {
    display: inline-block;
    animation: marquee 9s linear infinite;
}
@keyframes marquee {
    0% { transform: translateX(0); }
    50% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}
/* 歌词框：背景10%透明度，无边框，磨砂，hover放大 */
.lyric-box {
    width: 100%;
    height: clamp(140px, 22cqw, 200px);
    overflow: hidden;
    background: color-mix(in srgb, var(--text-color) 10%, var(--page-bg));
    border: none;
    border-radius: 14px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.18s ease, background 0.4s ease;
    margin: 0 auto;
}
.lyric-box:hover {
    transform: scale(1.05);
}
.lyric-wrap {
    width: 100%;
    max-height: 100%;
    text-align: center;
    line-height: 1.7;
    overflow: hidden;
    color: var(--text-color);
}
.lyric-line {
    margin: 3px 0;
    color: var(--text-color);
    opacity: 0.85;
    transition: all 0.25s;
}
.lyric-line.active {
    font-weight: 800;
    opacity: 1;
    transform: scale(1.05);
}
.control-group {
    display: flex;
    gap: clamp(6px,2cqw,12px);
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    flex-shrink: 1;
    min-width: 0;
}
/* 圆形按钮，基于media-card容器cqw自动适配；宽高完全相等保证永久正圆 */
.btn-icon {
    width: clamp(34px,11cqw,50px);
    height: clamp(34px,11cqw,50px);
    border-radius: 50%;
    border: none;
    background: rgba(var(--dyn-rgb1), 0.22);
    backdrop-filter: blur(6px);
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.18s ease, background 0.3s ease, color 0.3s ease;
    flex: 0 0 auto;
}
.btn-icon:hover {
    transform: scale(1.05);
}
.btn-icon:active {
    transform: scale(0.94);
}
.btn-play {
    width: clamp(40px,13cqw,58px);
    height: clamp(40px,13cqw,58px);
    background: rgba(var(--dyn-rgb1), 0.72);
    color: #ffffff;
}
/* 夜间模式按钮配色 */
:root[data-theme="dark"] .btn-icon {
    background: rgba(var(--dyn-rgb2), 0.18);
    color: var(--text-color);
}
:root[data-theme="dark"] .btn-play {
    background: rgba(var(--dyn-rgb2), 0.72);
    color: var(--dyn-color1);
}
.btn-icon svg {
    width: clamp(20px, 3cqw, 24px);
    height: clamp(20px, 3cqw, 24px);
    pointer-events: none;
}
.btn-play svg {
    width: clamp(24px, 3.6cqw, 30px);
    height: clamp(24px, 3.6cqw, 30px);
    pointer-events: none;
}
.like-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
}
.like-count-text {
    font-size: clamp(14px, 2cqw, 16px);
    color: var(--text-color);
}
/* 音量控件：音量键 + 悬浮音量条（行内，与其他按钮同一排） */
.volume-control {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: 2px;
}
/* 音量键与其他播放按钮视觉对齐（尺寸/图标一致） */
.btn-mute {
    width: clamp(34px, 11cqw, 50px);
    height: clamp(34px, 11cqw, 50px);
}
.btn-mute svg {
    width: clamp(20px, 3cqw, 24px);
    height: clamp(20px, 3cqw, 24px);
    pointer-events: none;
}
.btn-mute.muted {
    background: rgba(var(--dyn-rgb1), 0.12);
}
:root[data-theme="dark"] .btn-mute.muted {
    background: rgba(var(--dyn-rgb2), 0.12);
}
/* 悬浮音量条：默认隐藏，悬浮音量键/音量条时显示 */
.volume-popover {
    position: absolute;
    left: 50%;
    bottom: calc(100% + 12px);
    transform: translateX(-50%) translateY(6px);
    opacity: 0;
    visibility: hidden;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--text-color) 90%, var(--page-bg));
    color: var(--page-bg);
    box-shadow: var(--shadow-normal);
    white-space: nowrap;
    z-index: 30;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0s 0.22s;
}
.volume-popover.open {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    transition: opacity 0.22s ease, transform 0.22s ease;
}
#volumeSlider {
    width: 110px;
    height: 6px;
    margin: 0;
    accent-color: var(--page-bg);
    cursor: pointer;
}
.volume-text {
    font-size: clamp(13px, 2cqw, 15px);
    min-width: 34px;
    text-align: center;
    color: var(--page-bg);
}
/* 移动端响应式 */
@media (max-width: 720px) {
    .radio-inner {
        flex-direction: column;
        min-width: 0;
    }
    .media-card {
        flex-direction: column;
        gap: 16px;
        padding: 18px;
        min-width: 0;
    }
    .card {
        padding: 16px;
    }
    .radio-cover-wrap {
        width: clamp(70px,45cqw,200px);
    }
    .radio-right {
        width: 100%;
        min-width: 0;
    }
}