/* ========================================
 * 星浪音乐首页高端美化 — index-extra.css
 * 目标：整体更高端大气，统一金色品牌色系
 * ======================================== */

/* ========== 全局 ========== */
body.index-page {
    overflow-x: hidden;
}

/* 页面滚动平滑 */
html {
    scroll-behavior: smooth;
}

/* 页面背景统一暗色 */
body.index-page {
    background: linear-gradient(180deg, #0d0f14 0%, #11141a 30%, #0e1118 100%);
    color: rgba(255, 255, 255, 0.88);
}

/* 全局文字 */
body.index-page p,
body.index-page span,
body.index-page a:not(.navbar-brand *) {
    color: rgba(255, 255, 255, 0.78);
}

/* ========== 顶部导航栏 ========== */
body.index-page .site-shell {
    background: linear-gradient(180deg, rgba(10, 12, 18, 0.95) 0%, rgba(10, 12, 18, 0.75) 80%, transparent 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(230, 182, 92, 0.1);
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100000;
}

body.index-page .navbar-default {
    background: transparent !important;
    border: none !important;
    margin: 0 !important;
    min-height: 80px;
}

/* Logo 更精致 */
body.index-page .starwaves-brand {
    transition: transform 0.3s ease, filter 0.3s ease;
}

body.index-page .starwaves-brand:hover {
    transform: scale(1.03);
}

body.index-page .brand-mark {
    width: 54px;
    height: 54px;
    filter: drop-shadow(0 2px 12px rgba(230, 182, 92, 0.35));
    transition: filter 0.3s ease;
}

body.index-page .starwaves-brand:hover .brand-mark {
    filter: drop-shadow(0 4px 20px rgba(230, 182, 92, 0.6));
}

body.index-page .brand-text-wrap strong {
    font-size: 24px;
    letter-spacing: 2px;
    color: #fff !important;
}

body.index-page .brand-text-wrap em {
    color: var(--sw-gold) !important;
    font-size: 11px;
}

/* 导航链接 */
body.index-page .navbar-default .navbar-nav > li > a {
    color: rgba(255, 255, 255, 0.72) !important;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    padding: 8px 18px !important;
    border-radius: 999px;
    transition: all 0.3s ease;
    position: relative;
}

body.index-page .navbar-default .navbar-nav > li > a:hover,
body.index-page .navbar-default .navbar-nav > .active > a,
body.index-page .navbar-default .navbar-nav > .active > a:hover {
    background: rgba(230, 182, 92, 0.12) !important;
    color: #f0c060 !important;
    box-shadow: 0 0 20px rgba(230, 182, 92, 0.1);
}

/* 登录按钮 */
body.index-page .site-login-pill {
    background: linear-gradient(135deg, #e6b65c, #f0c86e) !important;
    color: #15120d !important;
    font-weight: 700;
    border-radius: 999px;
    padding: 10px 24px !important;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(230, 182, 92, 0.25);
}

body.index-page .site-login-pill:hover {
    background: linear-gradient(135deg, #f0c86e, #f8d98a) !important;
    color: #15120d !important;
    box-shadow: 0 6px 24px rgba(230, 182, 92, 0.4);
    transform: translateY(-1px);
}

/* 已登录用户 Chip */
body.index-page .site-user-chip {
    background: rgba(230, 182, 92, 0.12);
    border: 1px solid rgba(230, 182, 92, 0.2);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

body.index-page .site-user-chip:hover {
    background: rgba(230, 182, 92, 0.2);
    border-color: rgba(230, 182, 92, 0.35);
    transform: translateY(-1px);
}

body.index-page .site-user-chip img {
    border: 2px solid rgba(230, 182, 92, 0.3);
    border-radius: 12px;
}

/* 导航栏移动端 */
@media (max-width: 991px) {
    body.index-page .site-shell {
        position: relative !important;
    }
}

/* ========== Hero Banner 区域 ========== */
body.index-page .site-hero {
    min-height: 750px;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(230, 182, 92, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(230, 182, 92, 0.08) 0%, transparent 40%),
        linear-gradient(160deg, rgba(8, 12, 20, 0.96) 0%, rgba(14, 20, 30, 0.92) 40%, rgba(20, 28, 40, 0.88) 100%),
        url('../images/banner3.jpg') center center/cover no-repeat;
    overflow: hidden;
    padding-top: 80px;
}

/* Hero 叠加层增加精致感 */
body.index-page .hero-overlay {
    background:
        radial-gradient(circle at 30% 0%, rgba(230, 182, 92, 0.08) 0%, transparent 40%),
        linear-gradient(180deg, transparent 0%, rgba(8, 12, 18, 0.5) 100%);
}

/* Hero 内容区 */
body.index-page .hero-content {
    padding-top: 100px;
    padding-bottom: 80px;
    gap: 60px;
}

/* Hero 左侧文案 */
body.index-page .hero-copy {
    max-width: 640px;
}

body.index-page .hero-kicker {
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.2), rgba(230, 182, 92, 0.08));
    border: 1px solid rgba(230, 182, 92, 0.25);
    color: #f0c060;
    font-size: 12px;
    padding: 8px 18px;
    letter-spacing: 2px;
    animation: hero-kicker-pulse 3s ease-in-out infinite;
}

@keyframes hero-kicker-pulse {
    0%, 100% { box-shadow: 0 0 12px rgba(230, 182, 92, 0.15); }
    50% { box-shadow: 0 0 24px rgba(230, 182, 92, 0.25); }
}

body.index-page .hero-copy h2 {
    font-size: 58px;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #ffffff 0%, #f0e0c0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
}

body.index-page .hero-copy h2 span {
    background: linear-gradient(135deg, #e6b65c, #f5d89a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

body.index-page .hero-copy p {
    font-size: 17px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.65);
    max-width: 560px;
}

body.index-page .hero-actions {
    margin-top: 36px;
}

body.index-page .hero-primary {
    background: linear-gradient(135deg, #e6b65c, #f0c86e) !important;
    color: #15120d !important;
    font-weight: 700;
    border-radius: 999px !important;
    padding: 14px 34px !important;
    font-size: 15px;
    letter-spacing: 1px;
    box-shadow: 0 6px 30px rgba(230, 182, 92, 0.3);
    transition: all 0.3s ease;
}

body.index-page .hero-primary:hover {
    background: linear-gradient(135deg, #f0c86e, #f8d98a) !important;
    color: #15120d !important;
    box-shadow: 0 10px 40px rgba(230, 182, 92, 0.45);
    transform: translateY(-2px);
}

body.index-page .hero-secondary {
    background: transparent !important;
    border-color: rgba(255, 255, 255, 0.2) !important;
    color: #fff !important;
    border-radius: 999px !important;
    padding: 14px 30px !important;
    font-size: 15px;
    transition: all 0.3s ease;
}

body.index-page .hero-secondary:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    border-color: rgba(255, 255, 255, 0.35) !important;
    color: #fff !important;
    transform: translateY(-2px);
}

/* Hero 右侧面板 */
body.index-page .hero-panel-card {
    border: 1px solid rgba(230, 182, 92, 0.2);
    background: rgba(15, 20, 30, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 28px;
    padding: 32px;
    color: #fff;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), 0 0 40px rgba(230, 182, 92, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.index-page .hero-panel-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4), 0 0 60px rgba(230, 182, 92, 0.1);
}

body.index-page .hero-panel-card ul li {
    border-color: rgba(255, 255, 255, 0.06);
    padding: 14px 0;
}

body.index-page .hero-panel-card li strong {
    color: #f0c060;
    font-size: 18px;
}

/* ========== STAR.AI 特色条 ========== */
body.index-page .feature-strip {
    margin-top: -60px;
    z-index: 5;
}

body.index-page .section-card {
    background: linear-gradient(135deg, rgba(255, 250, 241, 0.96), rgba(255, 245, 230, 0.96));
    border: 1px solid rgba(230, 182, 92, 0.25);
    border-radius: 26px;
    padding: 28px 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25), 0 0 30px rgba(230, 182, 92, 0.05);
    backdrop-filter: blur(12px);
    min-height: auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

body.index-page .section-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3), 0 0 40px rgba(230, 182, 92, 0.08);
}

body.index-page .section-card h4 {
    color: #1a1408 !important;
}

body.index-page .section-card p {
    color: #5a4f3e !important;
}

body.index-page .section-card i {
    color: #e6b65c !important;
}

body.index-page .wthree_banner_bottom_grid_left_grid {
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.15), rgba(230, 182, 92, 0.05)) !important;
    border-color: rgba(230, 182, 92, 0.2) !important;
}

body.index-page .wthree_banner_bottom_grid_left_grid i {
    color: #c79534 !important;
    font-size: 24px;
}

body.index-page .wthree_banner_bottom_grid_right h4 a {
    color: #1a1408 !important;
    font-weight: 700;
    transition: color 0.3s ease;
}

body.index-page .wthree_banner_bottom_grid_right h4 a:hover {
    color: #e6b65c !important;
}

/* ========== AI 音乐工作台 (Service Matrix) ========== */
body.index-page .service-matrix-zone {
    background: linear-gradient(180deg, rgba(15, 18, 24, 0.95), rgba(12, 15, 22, 0.95));
    padding-top: 3.5em;
    padding-bottom: 4em;
    border-top: 1px solid rgba(230, 182, 92, 0.08);
}

body.index-page .service-path-card {
    background: linear-gradient(180deg, rgba(20, 25, 35, 0.8), rgba(16, 20, 30, 0.85));
    border: 1px solid rgba(230, 182, 92, 0.15);
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.35s ease;
}

body.index-page .service-path-card:hover {
    border-color: rgba(230, 182, 92, 0.3);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25), 0 0 30px rgba(230, 182, 92, 0.06);
    transform: translateY(-6px);
}

body.index-page .service-path-tag {
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.2), rgba(230, 182, 92, 0.08));
    color: #f0c060;
    font-weight: 700;
    border: 1px solid rgba(230, 182, 92, 0.2);
}

body.index-page .service-path-card h4 {
    color: #fff;
    font-size: 24px;
}

body.index-page .service-path-card p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

body.index-page .service-path-card li {
    color: rgba(255, 255, 255, 0.65);
}

/* ========== STAR TOP 音乐榜 ========== */
body.index-page .dynamic-upload-zone {
    background: linear-gradient(180deg, #0e1118 0%, #11141d 50%, #0e1118 100%);
    padding: 5em 0;
    border-top: 1px solid rgba(230, 182, 92, 0.06);
    border-bottom: 1px solid rgba(230, 182, 92, 0.06);
}

/* 榜单标题 */
body.index-page .wthree_head_section.topchart-home-head {
    margin-bottom: 28px;
}

body.index-page .w3l_header {
    color: #fff;
    font-size: 30px;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

body.index-page .w3l_header span {
    color: var(--sw-gold);
    font-weight: 400;
    font-size: 16px;
}

body.index-page .chart-board-copy {
    color: rgba(255, 255, 255, 0.5);
    margin-top: 8px;
    font-size: 14px;
}

/* ========== 榜单 Tab 按钮 ========== */
body.index-page .topchart-home-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

body.index-page .topchart-home-tab {
    display: inline-flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 14px 20px;
    background: linear-gradient(135deg, rgba(20, 25, 35, 0.8), rgba(16, 20, 30, 0.85));
    border: 1px solid rgba(230, 182, 92, 0.15);
    border-radius: 16px;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: all 0.3s ease;
    flex: 1;
    min-width: 160px;
}

body.index-page .topchart-home-tab:hover {
    border-color: rgba(230, 182, 92, 0.35);
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.12), rgba(230, 182, 92, 0.04));
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(230, 182, 92, 0.15);
    color: #fff;
}

body.index-page .topchart-home-tab span {
    font-size: 11px;
    letter-spacing: 1.5px;
    font-weight: 700;
    background: rgba(230, 182, 92, 0.12);
    color: #e6b65c;
    padding: 4px 10px;
    border-radius: 8px;
}

body.index-page .topchart-home-tab strong {
    color: #fff;
    font-size: 15px;
}

body.index-page .topchart-home-tab em {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    width: 100%;
}

/* ========== 全部播放按钮 ========== */
body.index-page .chart-play-all-btn {
    background: linear-gradient(135deg, #e6b65c, #f0c86e);
    color: #15120d;
    border: none;
    border-radius: 999px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 6px 24px rgba(230, 182, 92, 0.3);
    transition: all 0.3s ease;
}

body.index-page .chart-play-all-btn:hover:not(.is-disabled) {
    background: linear-gradient(135deg, #f0c86e, #f8d98a);
    box-shadow: 0 8px 32px rgba(230, 182, 92, 0.45);
    transform: translateY(-2px);
}

body.index-page .chart-play-all-btn.is-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

body.index-page .chart-play-all-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.15);
    font-size: 12px;
}

/* ========== 歌曲列表卡片 ========== */
body.index-page .topchart-home-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

body.index-page .topchart-home-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(20, 25, 35, 0.6), rgba(16, 20, 30, 0.7));
    border: 1px solid rgba(230, 182, 92, 0.08);
    border-radius: 16px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

body.index-page .topchart-home-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.03), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

body.index-page .topchart-home-card:hover {
    border-color: rgba(230, 182, 92, 0.25);
    background: linear-gradient(135deg, rgba(25, 32, 45, 0.8), rgba(20, 25, 38, 0.85));
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2), 0 0 20px rgba(230, 182, 92, 0.05);
    transform: translateX(4px);
}

body.index-page .topchart-home-card:hover::before {
    opacity: 1;
}

body.index-page .topchart-home-card.is-current {
    border-color: rgba(230, 182, 92, 0.3);
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.08), rgba(230, 182, 92, 0.03));
}

/* 排名数字 */
body.index-page .topchart-home-rank {
    min-width: 36px;
    font-size: 22px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.25);
    text-align: center;
}

body.index-page .topchart-home-card:hover .topchart-home-rank {
    color: rgba(230, 182, 92, 0.6);
}

body.index-page .topchart-home-card.is-current .topchart-home-rank {
    color: var(--sw-gold);
}

/* Top 3 排名用金色 */
body.index-page .topchart-home-card:nth-child(1) .topchart-home-rank {
    color: #e6b65c;
    font-size: 26px;
    text-shadow: 0 0 16px rgba(230, 182, 92, 0.4);
}
body.index-page .topchart-home-card:nth-child(2) .topchart-home-rank {
    color: #d4a855;
    font-size: 24px;
}
body.index-page .topchart-home-card:nth-child(3) .topchart-home-rank {
    color: #c49a4a;
    font-size: 22px;
}

/* 歌曲头像 */
body.index-page .topchart-home-avatar-wrap {
    position: relative;
    flex-shrink: 0;
}

body.index-page .topchart-home-avatar {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    object-fit: cover;
    border: 2px solid rgba(230, 182, 92, 0.15);
    transition: border-color 0.3s ease;
}

body.index-page .topchart-home-card:hover .topchart-home-avatar {
    border-color: rgba(230, 182, 92, 0.35);
}

/* 播放按钮（头像上的金色按钮） */
body.index-page .topchart-home-avatar-play {
    position: absolute;
    inset: 0;
    border: none;
    background: rgba(0, 0, 0, 0.45);
    border-radius: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.index-page .topchart-home-card:hover .topchart-home-avatar-play {
    opacity: 1;
}

body.index-page .topchart-home-avatar-play:hover {
    background: rgba(230, 182, 92, 0.25);
}

body.index-page .topchart-home-avatar-play__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(230, 182, 92, 0.9);
    color: #15120d;
    font-size: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

body.index-page .topchart-home-avatar-play.is-playing .topchart-home-avatar-play__icon {
    background: #e6b65c;
    animation: play-pulse 1.5s ease-in-out infinite;
}

@keyframes play-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(230, 182, 92, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(230, 182, 92, 0); }
}

/* 歌曲信息 */
body.index-page .topchart-home-copy {
    flex: 1;
    min-width: 0;
}

body.index-page .topchart-home-copy h4 {
    color: #fff;
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s ease;
}

body.index-page .topchart-home-card:hover .topchart-home-copy h4 {
    color: #f0d08a;
}

body.index-page .topchart-home-copy p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    margin: 0 0 4px;
}

body.index-page .topchart-home-copy span {
    color: rgba(255, 255, 255, 0.4);
    font-size: 12px;
}

/* ========== 底部 CTA ========== */
body.index-page .topchart-home-cta {
    text-align: center;
}

body.index-page .topchart-home-cta a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.15), rgba(230, 182, 92, 0.05));
    border: 1px solid rgba(230, 182, 92, 0.25);
    color: #f0c060;
    border-radius: 999px;
    padding: 14px 36px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    text-decoration: none;
    transition: all 0.3s ease;
}

body.index-page .topchart-home-cta a:hover {
    background: linear-gradient(135deg, rgba(230, 182, 92, 0.25), rgba(230, 182, 92, 0.1));
    border-color: rgba(230, 182, 92, 0.4);
    box-shadow: 0 6px 24px rgba(230, 182, 92, 0.2);
    color: #f7d97a;
    transform: translateY(-2px);
}

/* ========== 底部播放器 ========== */
body.index-page .song-bottom-player {
    background: rgba(8, 10, 16, 0.96);
    border-top: 1px solid rgba(230, 182, 92, 0.1);
}

body.index-page .song-bottom-player__audio {
    filter: sepia(20%) saturate(120%) brightness(1.05);
}

/* ========== Footer ========== */
body.index-page .footer {
    background: #0a0c12;
    border-top: 1px solid rgba(230, 182, 92, 0.06);
}

body.index-page .footer h2 {
    color: rgba(255, 255, 255, 0.85);
    font-size: 28px;
    margin-bottom: 12px;
}

body.index-page .footer h2 span {
    color: var(--sw-gold);
}

body.index-page .w3l_footer_nav {
    list-style: none;
    padding: 0;
    margin: 0 0 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

body.index-page .w3l_footer_nav li a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    padding: 4px 0;
}

body.index-page .w3l_footer_nav li a:hover {
    color: #f0c060;
}

body.index-page .w3l_footer_nav li a.active {
    color: var(--sw-gold);
    font-weight: 600;
}

body.index-page .footer p {
    color: rgba(255, 255, 255, 0.35);
    font-size: 13px;
}

/* ========== 响应式 ========== */
@media (max-width: 767px) {
    body.index-page .hero-content {
        padding-top: 70px;
        padding-bottom: 50px;
        flex-direction: column;
        align-items: flex-start;
    }

    body.index-page .hero-copy h2 {
        font-size: 36px;
    }

    body.index-page .hero-copy p {
        font-size: 15px;
    }

    body.index-page .w3l_header {
        font-size: 24px !important;
    }

    body.index-page .w3l_header span {
        font-size: 14px !important;
    }

    body.index-page .topchart-home-card {
        padding: 14px 16px !important;
        gap: 12px !important;
    }

    body.index-page .topchart-home-copy h4 {
        font-size: 15px !important;
    }
}

@media (max-width: 480px) {
    body.index-page .hero-copy h2 {
        font-size: 30px;
    }

    body.index-page .topchart-home-tab {
        min-width: 100%;
    }

    body.index-page .site-shell {
        position: relative !important;
    }
}

/* ========== 额外高级感装饰 ========== */

/* 页面滚动时的视差光效 */
@keyframes bg-glow {
    0% { transform: translate(0, 0); opacity: 0.5; }
    50% { transform: translate(-20px, -20px); opacity: 0.8; }
    100% { transform: translate(0, 0); opacity: 0.5; }
}

body.index-page .site-hero::after {
    content: '';
    position: absolute;
    top: 10%;
    right: 5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(230, 182, 92, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    animation: bg-glow 8s ease-in-out infinite;
    pointer-events: none;
    z-index: 1;
}

/* 榜单卡片的入场动画效果（CSS-only via hover） */
body.index-page .topchart-home-card.is-clickable {
    cursor: pointer;
}