:root {
    --bg: #f4f8f4;
    --bg-deep: #e4efe6;
    --panel: rgba(255, 255, 255, 0.92);
    --panel-strong: #ffffff;
    --text: #223229;
    --muted: #66746b;
    --border: rgba(47, 133, 90, 0.14);
    --accent: #2f855a;
    --accent-strong: #256b48;
    --accent-soft: rgba(47, 133, 90, 0.12);
    --shadow: 0 20px 50px rgba(33, 59, 43, 0.10);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    font-family: "Avenir Next", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(47, 133, 90, 0.12), transparent 30%),
        radial-gradient(circle at 86% 8%, rgba(129, 194, 151, 0.16), transparent 24%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
    padding: 28px 18px 54px;
}

body::before,
body::after {
    content: "";
    position: fixed;
    border-radius: 50%;
    filter: blur(20px);
    pointer-events: none;
    z-index: 0;
}

body::before {
    width: 220px;
    height: 220px;
    top: 88px;
    right: 5%;
    background: rgba(47, 133, 90, 0.10);
}

body::after {
    width: 180px;
    height: 180px;
    bottom: 100px;
    left: 4%;
    background: rgba(167, 215, 182, 0.18);
}

.page-shell {
    position: relative;
    z-index: 1;
    width: min(1120px, calc(100% - 12px));
    margin: 0 auto;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
    color: var(--accent-strong);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
}

.back-link:hover {
    text-decoration: underline;
}

.hero-card,
.playlist-panel,
.music-card,
.empty-state {
    background: var(--panel);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.hero-card {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    gap: 22px;
    padding: 30px;
    border-radius: 30px;
}

.eyebrow {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--accent-strong);
    font-weight: 700;
}

.hero-copy h1,
.section-head h2,
.music-card h3 {
    margin-top: 12px;
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.12;
}

.hero-copy h1 {
    font-size: clamp(2.4rem, 5vw, 4rem);
    max-width: 11ch;
}

.subtitle {
    margin-top: 16px;
    color: var(--muted);
    line-height: 1.85;
    font-size: 1.02rem;
    max-width: 62ch;
}

.hero-note {
    border-radius: 24px;
    padding: 24px;
    background: linear-gradient(150deg, rgba(47, 133, 90, 0.96), rgba(92, 184, 131, 0.88));
    color: #f4fff7;
}

.note-label {
    display: inline-flex;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    opacity: 0.84;
}

.hero-note p {
    margin-top: 12px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.9rem;
    line-height: 1.16;
}

.hero-note ul {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.hero-note li {
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.14);
}

.playlist-panel {
    margin-top: 24px;
    border-radius: 30px;
    padding: 28px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: end;
}

.section-head h2 {
    font-size: clamp(1.8rem, 3.8vw, 2.5rem);
}

.section-tip {
    color: var(--muted);
    font-size: 0.94rem;
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 22px;
}

.music-card {
    border-radius: 24px;
    padding: 22px;
}

.music-meta {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 16px;
}

.music-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 0.78rem;
    font-weight: 700;
}

.music-artist {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.65;
}

.music-note {
    margin-top: 10px;
    color: var(--text);
    line-height: 1.72;
}

.player-shell {
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(47, 133, 90, 0.12);
    background: #f7fbf8;
}

.player-shell iframe {
    display: block;
    width: 100%;
}

.empty-state {
    margin-top: 20px;
    border-radius: 20px;
    padding: 20px;
    color: var(--muted);
    text-align: center;
}

footer {
    text-align: center;
    margin-top: 28px;
    color: var(--muted);
    font-size: 0.84rem;
}

@media (max-width: 860px) {
    .hero-card,
    .music-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .section-head {
        align-items: start;
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    body {
        padding: 18px 12px 42px;
    }

    .hero-card,
    .playlist-panel,
    .music-card,
    .empty-state {
        border-radius: 22px;
    }

    .hero-card,
    .playlist-panel,
    .music-card {
        padding: 20px 16px;
    }

    .hero-copy h1 {
        font-size: clamp(2rem, 12vw, 3.1rem);
    }
}