/* ==================== TOKENS ==================== */
            :root {
                --bg: #f4f5f9;
                --surface: #fff;
                --surface-hover: #fafbff;
                --accent: #4f6ef7;
                --accent-hover: #3d5ce0;
                --accent-light: #eef1fe;
                --accent-glow: rgba(79, 110, 247, 0.14);
                --accent-subtle: rgba(79, 110, 247, 0.06);
                --text-primary: #0f1225;
                --text-secondary: #5a607f;
                --text-muted: #9499b8;
                --border: #e8eaf2;
                --border-light: #f0f1f6;
                --danger: #ef4565;
                --danger-light: #fef0f2;
                --success: #30a46c;
                --success-light: #e9f9ef;
                --warning: #f5a623;
                --warning-light: #fff7e8;
                --radius-sm: 12px;
                --radius: 16px;
                --radius-lg: 24px;
                --radius-xl: 28px;
                --shadow-xs: 0 1px 2px rgba(15, 18, 37, 0.04);
                --shadow-sm: 0 2px 8px rgba(15, 18, 37, 0.06);
                --shadow: 0 4px 20px rgba(15, 18, 37, 0.07);
                --shadow-lg: 0 8px 40px rgba(15, 18, 37, 0.1);
                --content-w: 920px;
                --nav-bottom: 14px;
                --nav-h: 56px;
                --mini-h: 0px;
                --total-bottom: calc(
                    var(--nav-bottom) + var(--nav-h) + var(--mini-h) + 14px
                );
            }
            .mini-player-visible {
                --mini-h: 82px;
            }

            /* ==================== RESET ==================== */
            *,
            *::before,
            *::after {
                box-sizing: border-box;
                margin: 0;
                padding: 0;
            }
            body {
                font-family:
                    "Plus Jakarta Sans",
                    -apple-system,
                    BlinkMacSystemFont,
                    sans-serif;
                color: var(--text-primary);
                height: 100dvh;
                display: flex;
                flex-direction: column;
                -webkit-font-smoothing: antialiased;
                overflow: hidden;
            }
            img {
                display: block;
                max-width: 100%;
                height: auto;
            }
            button {
                font-family: inherit;
                cursor: pointer;
                -webkit-tap-highlight-color: transparent;
            }
            input {
                font-family: inherit;
            }

            /* ==================== BG ==================== */
            .page-bg {
                position: fixed;
                inset: 0;
                z-index: 0;
                pointer-events: none;
                background:
                    radial-gradient(
                        ellipse at 20% 0%,
                        rgba(79, 110, 247, 0.04) 0%,
                        transparent 50%
                    ),
                    radial-gradient(
                        ellipse at 80% 100%,
                        rgba(139, 92, 246, 0.03) 0%,
                        transparent 50%
                    ),
                    var(--bg);
            }
            .bg-shapes {
                position: fixed;
                inset: 0;
                z-index: 0;
                pointer-events: none;
                overflow: hidden;
            }
            .bg-shapes .s {
                position: absolute;
                border-radius: 50%;
                opacity: 0.03;
                animation: floatShape 22s ease-in-out infinite alternate;
            }
            .bg-shapes .s:nth-child(1) {
                width: 520px;
                height: 520px;
                top: -15%;
                left: -10%;
                background: var(--accent);
            }
            .bg-shapes .s:nth-child(2) {
                width: 420px;
                height: 420px;
                bottom: -10%;
                right: -8%;
                background: #8b5cf6;
                animation-delay: -6s;
            }
            .bg-shapes .s:nth-child(3) {
                width: 300px;
                height: 300px;
                top: 40%;
                left: 60%;
                background: var(--success);
                animation-delay: -12s;
            }
            @keyframes floatShape {
                0% {
                    transform: translate(0, 0) scale(1);
                }
                100% {
                    transform: translate(40px, -30px) scale(1.12);
                }
            }

            /* ==================== HEADER ==================== */
            .top-header {
                flex-shrink: 0;
                z-index: 100;
                background: rgba(244, 245, 249, 0.78);
                backdrop-filter: blur(28px) saturate(180%);
                padding: 0.55rem 1rem;
                animation: headerSlide 0.5s cubic-bezier(0.22, 1, 0.36, 1);
            }
            @keyframes headerSlide {
                from {
                    opacity: 0;
                    transform: translateY(-100%);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            .header-inner {
                max-width: var(--content-w);
                margin: 0 auto;
                display: flex;
                justify-content: space-between;
                align-items: center;
                gap: 0.5rem;
            }
            .brand {
                display: flex;
                align-items: center;
                gap: 0.5rem;
                font-weight: 800;
                font-size: 0.98rem;
                color: var(--text-primary);
                letter-spacing: -0.02em;
            }
            .brand-icon {
                width: 30px;
                height: 30px;
                border-radius: 9px;
                display: flex;
                align-items: center;
                justify-content: center;
                overflow: hidden;
                box-shadow: 0 2px 12px rgba(79, 110, 247, 0.3);
                flex-shrink: 0;
            }
            .brand-icon img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            .live-pill {
                display: inline-flex;
                align-items: center;
                gap: 0.28rem;
                font-size: 0.56rem;
                font-weight: 700;
                background: var(--success);
                color: #fff;
                padding: 0.18rem 0.5rem;
                border-radius: 20px;
                letter-spacing: 0.06em;
                text-transform: uppercase;
                animation: livePulse 2.5s ease-in-out infinite;
            }
            .live-dot {
                width: 4px;
                height: 4px;
                background: #fff;
                border-radius: 50%;
                animation: dotPulse 1.5s ease-in-out infinite;
            }
            @keyframes livePulse {
                0%,
                100% {
                    box-shadow: 0 0 0 0 rgba(48, 164, 108, 0.35);
                }
                50% {
                    box-shadow: 0 0 0 8px rgba(48, 164, 108, 0);
                }
            }
            @keyframes dotPulse {
                0%,
                100% {
                    opacity: 1;
                    transform: scale(1);
                }
                50% {
                    opacity: 0.3;
                    transform: scale(0.8);
                }
            }
            .header-actions {
                display: flex;
                align-items: center;
                gap: 0.45rem;
            }
            .cache-pill {
                font-size: 0.66rem;
                font-weight: 500;
                color: var(--text-secondary);
                background: var(--surface);
                padding: 0.22rem 0.55rem;
                border-radius: 20px;
                display: inline-flex;
                align-items: center;
                gap: 0.28rem;
                border: 1px solid var(--border-light);
                font-family: "JetBrains Mono", monospace;
                letter-spacing: -0.02em;
            }
            .btn-link-sm {
                font-size: 0.7rem;
                font-weight: 600;
                color: var(--accent);
                text-decoration: none;
                padding: 0.28rem 0.6rem;
                border-radius: 10px;
                transition: all 0.2s;
                display: inline-flex;
                align-items: center;
                gap: 0.25rem;
            }
            .btn-link-sm:hover {
                background: var(--accent-light);
            }

            /* ==================== PAGE CONTAINER ==================== */
            .page-container {
                position: relative;
                z-index: 1;
                max-width: var(--content-w);
                margin: 0 auto;
                width: 100%;
                padding: 1rem 1.25rem 2rem;
                padding-bottom: calc(var(--total-bottom) + 1.5rem);
                flex: 1;
                min-height: 0;
                display: flex;
                flex-direction: column;
            }
            .page-container::-webkit-scrollbar {
                width: 5px;
            }
            .page-container::-webkit-scrollbar-track {
                background: transparent;
            }
            .page-container::-webkit-scrollbar-thumb {
                background: var(--border);
                border-radius: 10px;
            }
            .page-container::-webkit-scrollbar-thumb:hover {
                background: var(--text-muted);
            }
            .page {
                display: none;
            }
            .page.active {
                display: flex;
                flex-direction: column;
                flex: 1;
                min-height: 0;
                animation: pageEnter 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
            }
            @keyframes pageEnter {
                from {
                    opacity: 0;
                    transform: translateY(12px) scale(0.995);
                }
                to {
                    opacity: 1;
                    transform: translateY(0) scale(1);
                }
            }

            /* ==================== CARDS ==================== */
            .section-card,
            .search-card,
            .about-card {
                background: var(--surface);
                border-radius: var(--radius-xl);
                box-shadow: var(--shadow);
                border: 1px solid var(--border-light);
                animation: cardRise 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
            }
            .section-card {
                display: flex;
                flex-direction: column;
                min-height: 0;
            }
            @keyframes cardRise {
                from {
                    opacity: 0;
                    transform: translateY(18px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }

            /* ==================== SEARCH ==================== */
            .search-card {
                display: flex;
                flex-direction: column;
                min-height: 0;
                overflow-y: auto;
            }
            .search-header {
                padding: 1.5rem 1.5rem 0.3rem;
            }
            .search-header h2 {
                font-size: 1.12rem;
                font-weight: 800;
                letter-spacing: -0.03em;
                margin-bottom: 0.12rem;
            }
            .search-header p {
                font-size: 0.78rem;
                color: var(--text-muted);
            }
            .search-input-wrap {
                padding: 0.75rem 1.5rem;
            }
            .search-field {
                display: flex;
                gap: 0.5rem;
                align-items: stretch;
            }
            .search-field input {
                flex: 1;
                border: 1.5px solid var(--border);
                border-radius: var(--radius-sm);
                padding: 0.65rem 0.85rem;
                font-size: 0.84rem;
                background: var(--bg);
                color: var(--text-primary);
                outline: none;
                transition:
                    border-color 0.25s,
                    box-shadow 0.25s,
                    background 0.25s;
            }
            .search-field input:focus {
                border-color: var(--accent);
                box-shadow: 0 0 0 3px var(--accent-glow);
                background: var(--surface);
            }
            .search-field input::placeholder {
                color: var(--text-muted);
                font-size: 0.82rem;
            }
            .btn-search {
                border: none;
                background: var(--accent);
                color: #fff;
                padding: 0 1.2rem;
                border-radius: var(--radius-sm);
                font-weight: 700;
                font-size: 0.82rem;
                transition: all 0.2s;
                white-space: nowrap;
                letter-spacing: -0.01em;
                position: relative;
                overflow: hidden;
            }
            .btn-search::after {
                content: "";
                position: absolute;
                inset: 0;
                background: rgba(255, 255, 255, 0.2);
                transform: translateX(-100%);
                transition: transform 0.3s;
            }
            .btn-search:hover::after {
                transform: translateX(0);
            }
            .btn-search:hover {
                background: var(--accent-hover);
                box-shadow: 0 4px 16px rgba(79, 110, 247, 0.25);
            }
            .btn-search:active {
                transform: scale(0.97);
            }
            .btn-search:disabled {
                opacity: 0.5;
                cursor: not-allowed;
            }

            /* Parse hint */
            .parse-hint {
                padding: 0 1.5rem;
                margin-bottom: 0.3rem;
                display: flex;
                align-items: center;
                gap: 0.35rem;
                font-size: 0.68rem;
                color: var(--text-muted);
                max-height: 0;
                opacity: 0;
                overflow: hidden;
                transition: all 0.3s ease;
            }
            .parse-hint.visible {
                opacity: 1;
                max-height: 36px;
                padding-top: 0.1rem;
            }
            .parse-hint i {
                color: var(--accent);
                font-size: 0.75rem;
            }
            .parse-hint code {
                font-family: "JetBrains Mono", monospace;
                font-size: 0.64rem;
                background: var(--accent-light);
                color: var(--accent);
                padding: 0.08rem 0.35rem;
                border-radius: 5px;
                font-weight: 500;
            }

            /* Preview card — info only, no inline player */
            .preview-card {
                margin: 0 1.5rem 1.5rem;
                background: var(--bg);
                border-radius: var(--radius-lg);
                overflow: hidden;
                border: 1px solid var(--border-light);
                animation: slideUp 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            }
            @keyframes slideUp {
                from {
                    opacity: 0;
                    transform: translateY(16px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            .preview-cover-section {
                display: flex;
                align-items: center;
                gap: 0.9rem;
                padding: 0.9rem 1.1rem;
            }
            .preview-cover-wrap {
                position: relative;
                width: 64px;
                height: 64px;
                flex-shrink: 0;
            }
            .preview-cover {
                width: 64px;
                height: 64px;
                border-radius: var(--radius);
                object-fit: cover;
                box-shadow: var(--shadow-sm);
            }
            .preview-cover-wrap::after {
                content: "";
                position: absolute;
                inset: 0;
                border-radius: var(--radius);
                box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.06);
                pointer-events: none;
            }
            .preview-info {
                flex: 1;
                min-width: 0;
            }
            .preview-title {
                font-weight: 700;
                font-size: 0.95rem;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                letter-spacing: -0.02em;
                margin-bottom: 0.1rem;
            }
            .preview-artist {
                font-size: 0.78rem;
                color: var(--text-secondary);
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .preview-details {
                display: flex;
                flex-wrap: wrap;
                gap: 0.4rem;
                padding: 0 1.1rem 0.9rem;
            }
            .detail-tag {
                display: inline-flex;
                align-items: center;
                gap: 0.25rem;
                font-size: 0.66rem;
                font-weight: 500;
                color: var(--text-secondary);
                background: var(--surface);
                padding: 0.24rem 0.55rem;
                border-radius: 10px;
                border: 1px solid var(--border-light);
            }
            .detail-tag i {
                font-size: 0.7rem;
                color: var(--text-muted);
            }
            .detail-tag.album-tag i {
                color: var(--accent);
            }
            .detail-tag.quality-tag i {
                color: var(--success);
            }
            .detail-tag.duration-tag i {
                color: var(--warning);
            }
            .preview-actions {
                display: flex;
                gap: 0.5rem;
                padding: 0 1.1rem 1.1rem;
            }
            .btn-download {
                border: none;
                background: var(--accent);
                color: #fff;
                padding: 0.5rem 1rem;
                border-radius: var(--radius-sm);
                font-weight: 700;
                font-size: 0.78rem;
                transition: all 0.2s;
                display: inline-flex;
                align-items: center;
                gap: 0.35rem;
                white-space: nowrap;
                letter-spacing: -0.01em;
                flex: 1;
                justify-content: center;
                position: relative;
                overflow: hidden;
            }
            .btn-download::after {
                content: "";
                position: absolute;
                inset: 0;
                background: rgba(255, 255, 255, 0.2);
                transform: translateX(-100%);
                transition: transform 0.3s;
            }
            .btn-download:hover::after {
                transform: translateX(0);
            }
            .btn-download:hover {
                background: var(--accent-hover);
                box-shadow: 0 4px 16px rgba(79, 110, 247, 0.25);
            }
            .btn-download:active {
                transform: scale(0.97);
            }
            .btn-download:disabled {
                opacity: 0.5;
                cursor: not-allowed;
            }

            /* Search results */
            .searchResults {
                margin: 0 1.5rem 1.5rem;
                animation: slideUp 0.4s cubic-bezier(0.22, 1, 0.36, 1);
            }
            .sr-head {
                font-size: 0.74rem;
                color: var(--text-muted);
                margin-bottom: 0.5rem;
                padding: 0 0.25rem;
            }
            .sr-head b {
                color: var(--accent);
                font-weight: 700;
            }
            .sr-list {
                display: flex;
                flex-direction: column;
                gap: 0.3rem;
            }
            .sr-item {
                display: flex;
                align-items: center;
                gap: 0.65rem;
                padding: 0.55rem 0.75rem;
                background: var(--bg);
                border: 1.5px solid transparent;
                border-radius: var(--radius);
                cursor: pointer;
                transition: all 0.25s ease;
                opacity: 0;
                animation: srFadeIn 0.35s ease forwards;
            }
            .sr-item:hover {
                border-color: var(--accent);
                box-shadow: 0 2px 10px rgba(79, 110, 247, 0.12);
                transform: translateY(-1px);
            }
            .sr-item.active {
                border-color: var(--accent);
                background: var(--accent-light);
            }
            @keyframes srFadeIn {
                from {
                    opacity: 0;
                    transform: translateY(6px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            .sr-main {
                flex: 1;
                min-width: 0;
            }
            .sr-name {
                font-weight: 600;
                font-size: 0.84rem;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .sr-artist {
                font-size: 0.72rem;
                color: var(--text-secondary);
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                margin-top: 0.06rem;
            }
            .sr-alias {
                font-size: 0.66rem;
                color: var(--text-muted);
                background: var(--surface);
                padding: 0.15rem 0.4rem;
                border-radius: 7px;
                border: 1px solid var(--border-light);
                max-width: 160px;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .sr-duration {
                font-family: "JetBrains Mono", monospace;
                font-size: 0.7rem;
                color: var(--text-muted);
                flex-shrink: 0;
            }

            /* Tips — expand on tall screens */
            .search-tips {
                padding: 2rem 1.5rem 2.5rem;
                text-align: center;
            }
            .tips-icon {
                width: 60px;
                height: 60px;
                background: var(--accent-light);
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                margin: 0 auto 0.9rem;
                font-size: 1.3rem;
                color: var(--accent);
                animation: float 3s ease-in-out infinite;
            }
            @keyframes float {
                0%,
                100% {
                    transform: translateY(0);
                }
                50% {
                    transform: translateY(-7px);
                }
            }
            .tips-title {
                font-weight: 700;
                font-size: 0.9rem;
                margin-bottom: 0.3rem;
                letter-spacing: -0.02em;
            }
            .tips-desc {
                font-size: 0.76rem;
                color: var(--text-muted);
                line-height: 1.7;
            }
            .tips-desc code {
                font-family: "JetBrains Mono", monospace;
                font-size: 0.68rem;
                background: var(--accent-light);
                color: var(--accent);
                padding: 0.08rem 0.3rem;
                border-radius: 5px;
                font-weight: 500;
            }

            /* ==================== RESOURCE / PLAYLIST ==================== */
            .section-header {
                padding: 1.1rem 1.1rem 0.65rem;
                display: flex;
                justify-content: space-between;
                align-items: center;
                gap: 0.6rem;
                flex-wrap: wrap;
                flex-shrink: 0;
            }
            .section-title {
                font-size: 0.92rem;
                font-weight: 800;
                display: flex;
                align-items: center;
                gap: 0.4rem;
                letter-spacing: -0.03em;
            }
            .section-count {
                min-width: 20px;
                height: 20px;
                background: var(--accent-light);
                color: var(--accent);
                font-size: 0.62rem;
                font-weight: 700;
                border-radius: 7px;
                display: inline-flex;
                align-items: center;
                justify-content: center;
                padding: 0 5px;
            }
            .section-body {
                padding: 0 0.5rem 0.5rem 0.5rem;
                margin-bottom: 0.5rem;
                flex: 1;
                min-height: 0;
                overflow-y: auto;
                overscroll-behavior: contain;
                scrollbar-width: thin;
                scrollbar-color: var(--border) transparent;
            }
            .section-body::-webkit-scrollbar {
                width: 5px;
            }
            .section-body::-webkit-scrollbar-track {
                background: transparent;
            }
            .section-body::-webkit-scrollbar-thumb {
                background: var(--border);
                border-radius: 10px;
            }
            .section-body::-webkit-scrollbar-thumb:hover {
                background: var(--text-muted);
            }
            .resource-search {
                border: 1.5px solid var(--border);
                border-radius: var(--radius-sm);
                padding: 0.35rem 0.65rem;
                font-size: 0.74rem;
                background: var(--bg);
                color: var(--text-primary);
                outline: none;
                width: 135px;
                transition:
                    border-color 0.25s,
                    box-shadow 0.25s,
                    width 0.25s;
            }
            .resource-search:focus {
                border-color: var(--accent);
                box-shadow: 0 0 0 3px var(--accent-glow);
                width: 175px;
            }
            .resource-search::placeholder {
                color: var(--text-muted);
            }

            /* Resource item */
            .res-item {
                position: relative;
                overflow: hidden;
                border-radius: var(--radius-lg);
                margin: 0.2rem 0;
                transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
                cursor: default;
                opacity: 0;
                animation: itemFadeIn 0.4s ease forwards;
            }
            .res-item:hover {
                box-shadow: var(--shadow-sm);
                transform: translateY(-2px);
            }
            .res-item:active {
                transform: translateY(0);
            }
            .res-bg {
                position: absolute;
                inset: -40px;
                background-size: cover;
                background-position: center;
                filter: blur(50px) saturate(1.3);
                opacity: 0.07;
                z-index: 0;
                transition: opacity 0.35s;
            }
            .res-item:hover .res-bg {
                opacity: 0.15;
            }
            .res-row {
                position: relative;
                z-index: 1;
                display: flex;
                align-items: center;
                padding: 0.6rem 0.75rem;
            }
            .res-cover {
                width: 44px;
                height: 44px;
                border-radius: 11px;
                object-fit: cover;
                flex-shrink: 0;
                box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
            }
            .res-cover-ph {
                width: 44px;
                height: 44px;
                border-radius: 11px;
                flex-shrink: 0;
                display: flex;
                align-items: center;
                justify-content: center;
                color: var(--text-muted);
                background: var(--bg);
                font-size: 1rem;
                border: 1px solid var(--border-light);
            }
            .res-meta {
                flex: 1;
                min-width: 0;
                margin: 0 0.65rem;
            }
            .res-title {
                font-weight: 700;
                font-size: 0.83rem;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                letter-spacing: -0.01em;
            }
            .res-artist {
                font-size: 0.71rem;
                color: var(--text-secondary);
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                margin-top: 0.08rem;
            }
            .res-actions {
                display: flex;
                align-items: center;
                gap: 0.25rem;
                flex-shrink: 0;
            }
            .heat-chip {
                font-size: 0.62rem;
                font-weight: 600;
                background: var(--warning-light);
                color: var(--warning);
                padding: 0.14rem 0.4rem;
                border-radius: 7px;
                display: inline-flex;
                align-items: center;
                gap: 0.18rem;
            }
            .btn-icon {
                width: 32px;
                height: 32px;
                display: flex;
                align-items: center;
                justify-content: center;
                border: none;
                background: none;
                color: var(--text-muted);
                font-size: 1rem;
                border-radius: 9px;
                transition: all 0.2s;
            }
            .btn-icon:hover {
                background: var(--accent-light);
                color: var(--accent);
            }
            .btn-icon:active {
                transform: scale(0.85);
            }
            .btn-icon.danger:hover {
                background: var(--danger-light);
                color: var(--danger);
            }
            .res-detail {
                position: relative;
                z-index: 1;
                max-height: 0;
                opacity: 0;
                overflow: hidden;
                transition:
                    max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1),
                    opacity 0.3s,
                    padding 0.35s;
                font-size: 0.68rem;
                color: var(--text-secondary);
                padding: 0 0.75rem 0 calc(0.75rem + 44px + 0.65rem);
            }
            .res-item:hover .res-detail {
                max-height: 36px;
                opacity: 1;
                padding-bottom: 0.45rem;
            }
            .res-detail span {
                display: inline-flex;
                align-items: center;
                gap: 0.15rem;
            }
            .detail-sep {
                color: var(--border);
                margin: 0 0.3rem;
            }

            /* Playlist item */
            .pl-item {
                position: relative;
                display: flex;
                align-items: center;
                gap: 0.55rem;
                padding: 0.6rem 0.75rem;
                border-radius: var(--radius-lg);
                margin: 0.2rem 0;
                transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
                cursor: grab;
                opacity: 0;
                animation: itemFadeIn 0.4s ease forwards;
            }
            .pl-item:active {
                cursor: grabbing;
            }
            .pl-item:hover {
                background: var(--bg);
                transform: translateY(-1px);
            }
            .pl-grip {
                color: var(--text-muted);
                font-size: 0.8rem;
                flex-shrink: 0;
                opacity: 0.3;
                transition: opacity 0.2s;
            }
            .pl-item:hover .pl-grip {
                opacity: 0.7;
            }
            .pl-num {
                width: 20px;
                height: 20px;
                background: var(--accent-light);
                color: var(--accent);
                font-size: 0.6rem;
                font-weight: 700;
                border-radius: 6px;
                display: flex;
                align-items: center;
                justify-content: center;
                flex-shrink: 0;
                font-family: "JetBrains Mono", monospace;
            }
            .pl-info {
                flex: 1;
                min-width: 0;
            }
            .pl-name {
                font-weight: 700;
                font-size: 0.82rem;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                letter-spacing: -0.01em;
            }
            .pl-sub {
                display: flex;
                align-items: center;
                gap: 0.4rem;
                margin-top: 0.12rem;
            }
            .pl-cache {
                font-size: 0.6rem;
                font-weight: 600;
                display: inline-flex;
                align-items: center;
                gap: 0.18rem;
                padding: 0.08rem 0.35rem;
                border-radius: 6px;
            }
            .pl-cache.ready {
                background: var(--success-light);
                color: var(--success);
            }
            .pl-cache.pending {
                background: var(--warning-light);
                color: var(--warning);
            }
            .pl-cache.none {
                background: var(--bg);
                color: var(--text-muted);
            }
            .pl-heat {
                font-size: 0.6rem;
            }
            .btn-clear {
                border: none;
                background: var(--danger-light);
                color: var(--danger);
                font-size: 0.68rem;
                font-weight: 700;
                padding: 0.3rem 0.7rem;
                border-radius: 10px;
                transition: all 0.2s;
                display: inline-flex;
                align-items: center;
                gap: 0.25rem;
            }
            .btn-clear:hover {
                background: #fdd;
                box-shadow: 0 2px 8px rgba(239, 69, 101, 0.15);
            }
            .btn-clear:active {
                transform: scale(0.97);
            }

            /* Sortable */
            .sortable-ghost {
                opacity: 0.3;
                background: var(--accent-light) !important;
                border-radius: var(--radius-lg);
            }

            /* ==================== ABOUT PAGE ==================== */
            .about-card {
                display: flex;
                flex-direction: column;
                min-height: 0;
            }
            .about-hero {
                text-align: center;
                padding: 2.2rem 1.5rem 1.8rem;
                background: linear-gradient(
                    135deg,
                    var(--accent-light) 0%,
                    rgba(139, 92, 246, 0.06) 100%
                );
                flex-shrink: 0;
                border-radius: var(--radius-xl) var(--radius-xl) 0 0;
            }
            .about-logo {
                width: 72px;
                height: 72px;
                border-radius: 18px;
                overflow: hidden;
                margin: 0 auto 1rem;
                box-shadow: 0 4px 24px rgba(79, 110, 247, 0.25);
            }
            .about-logo img {
                width: 100%;
                height: 100%;
                object-fit: cover;
            }
            .about-hero h2 {
                font-size: 1.25rem;
                font-weight: 800;
                letter-spacing: -0.03em;
                margin-bottom: 0.15rem;
            }
            .about-hero p {
                font-size: 0.82rem;
                color: var(--text-secondary);
            }
            .about-body {
                padding: 0.5rem 1.5rem 1.8rem;
                flex: 1;
                min-height: 0;
                overflow-y: auto;
                overscroll-behavior: contain;
                scrollbar-width: thin;
                scrollbar-color: var(--border) transparent;
            }
            .about-body::-webkit-scrollbar {
                width: 5px;
            }
            .about-body::-webkit-scrollbar-track {
                background: transparent;
            }
            .about-body::-webkit-scrollbar-thumb {
                background: var(--border);
                border-radius: 10px;
            }
            .about-body::-webkit-scrollbar-thumb:hover {
                background: var(--text-muted);
            }
            .about-section {
                display: flex;
                gap: 0.75rem;
                padding: 0.9rem 0;
                border-bottom: 1px solid var(--border-light);
            }
            .about-section:last-child {
                border-bottom: none;
            }
            .about-section-icon {
                width: 34px;
                height: 34px;
                background: var(--accent-light);
                border-radius: 10px;
                display: flex;
                align-items: center;
                justify-content: center;
                color: var(--accent);
                font-size: 0.95rem;
                flex-shrink: 0;
            }
            .about-section-content h3 {
                font-size: 0.82rem;
                font-weight: 700;
                margin-bottom: 0.25rem;
            }
            .about-section-content p {
                font-size: 0.76rem;
                color: var(--text-secondary);
                line-height: 1.7;
            }
            .tech-tags {
                display: flex;
                flex-wrap: wrap;
                gap: 0.35rem;
            }
            .tech-tags span {
                font-size: 0.68rem;
                font-weight: 600;
                background: var(--bg);
                color: var(--text-secondary);
                padding: 0.2rem 0.55rem;
                border-radius: 8px;
                border: 1px solid var(--border-light);
            }
            .disclaimer-section .about-section-icon {
                background: var(--warning-light);
                color: var(--warning);
            }
            .about-version {
                text-align: center;
                padding: 0.8rem;
                font-size: 0.65rem;
                color: var(--text-muted);
                font-family: "JetBrains Mono", monospace;
                letter-spacing: -0.01em;
                flex-shrink: 0;
            }

            /* ==================== ABOUT — EXTENSIONS ==================== */
            /* 核心功能列表 */
            .about-feature-list {
              display: flex;
              flex-direction: column;
              gap: 0.35rem;
              margin-top: 0.2rem;
            }

            .about-feat {
              display: flex;
              align-items: flex-start;
              gap: 0.45rem;
              font-size: 0.76rem;
              color: var(--text-secondary);
              line-height: 1.65;
              padding: 0.3rem 0;
            }

            .about-feat i {
              font-size: 0.72rem;
              flex-shrink: 0;
              margin-top: 0.18rem;
            }

            /* GitHub 链接徽章 */
            .about-gh-link {
              display: inline-flex;
              align-items: center;
              gap: 0.3rem;
              padding: 0.3rem 0.7rem;
              background: var(--bg);
              border: 1px solid var(--border-light);
              border-radius: 10px;
              font-size: 0.72rem;
              font-weight: 600;
              color: var(--text-secondary);
              text-decoration: none;
              transition: all 0.2s;
              font-family: "JetBrains Mono", monospace;
              letter-spacing: -0.01em;
            }

            .about-gh-link:hover {
              color: var(--accent);
              border-color: var(--accent);
              background: var(--accent-light);
            }

            .about-gh-link i:first-child {
              font-size: 0.9rem;
            }

            /* ==================== MINI PLAYER ==================== */
            .mini-player {
                position: fixed;
                bottom: calc(var(--nav-bottom) + var(--nav-h) + 12px);
                left: 50%;
                transform: translateX(-50%);
                width: min(var(--content-w), calc(100% - 2rem));
                z-index: 99;
                border-radius: 20px;
                overflow: hidden;
                background: rgba(255, 255, 255, 0.85);
                backdrop-filter: blur(28px) saturate(200%);
                border: 1px solid rgba(255, 255, 255, 0.6);
                box-shadow:
                    0 4px 24px rgba(15, 18, 37, 0.1),
                    0 1px 4px rgba(15, 18, 37, 0.04),
                    inset 0 1px 0 rgba(255, 255, 255, 0.8);
                opacity: 0;
                pointer-events: none;
                transform: translateX(-50%) translateY(16px) scale(0.96);
                transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            }
            .mini-player.show {
                opacity: 1;
                pointer-events: auto;
                transform: translateX(-50%) translateY(0) scale(1);
            }
            /* progress = full background */
            .mp-progress {
                position: absolute;
                inset: 0;
                width: 0;
                background: linear-gradient(
                    90deg,
                    rgba(79, 110, 247, 0.11),
                    rgba(139, 92, 246, 0.08)
                );
                pointer-events: none;
                z-index: 0;
                transition: width 0.15s linear;
            }
            .mini-player:hover .mp-progress {
                background: linear-gradient(
                    90deg,
                    rgba(79, 110, 247, 0.16),
                    rgba(139, 92, 246, 0.12)
                );
            }
            .mp-body {
                position: relative;
                z-index: 1;
                display: flex;
                align-items: center;
                gap: 0.6rem;
                padding: 0.5rem 0.9rem 0.55rem;
                cursor: pointer;
                user-select: none;
                -webkit-user-select: none;
            }
            .mp-cover {
                width: 40px;
                height: 40px;
                border-radius: 9px;
                object-fit: cover;
                flex-shrink: 0;
                box-shadow: var(--shadow-xs);
            }
            .mp-info {
                flex: 1;
                min-width: 0;
            }
            .mp-name {
                font-weight: 700;
                font-size: 0.8rem;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                letter-spacing: -0.01em;
            }
            .mp-artist {
                font-size: 0.68rem;
                color: var(--text-secondary);
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
                margin-top: 0.04rem;
            }
            .mp-controls {
                display: flex;
                align-items: center;
                gap: 0.3rem;
                flex-shrink: 0;
            }
            .mp-time {
                font-family: "JetBrains Mono", monospace;
                font-size: 0.64rem;
                color: var(--text-muted);
                flex-shrink: 0;
                min-width: 40px;
                text-align: center;
            }
            .mp-play {
                width: 34px;
                height: 34px;
                border: none;
                border-radius: 50%;
                background: var(--accent);
                color: #fff;
                font-size: 0.95rem;
                display: flex;
                align-items: center;
                justify-content: center;
                transition: all 0.2s;
            }
            .mp-play:hover {
                background: var(--accent-hover);
                box-shadow: 0 2px 8px rgba(79, 110, 247, 0.3);
            }
            .mp-play:active {
                transform: scale(0.88);
            }
            .mp-expand {
                width: 30px;
                height: 30px;
                border: none;
                border-radius: 50%;
                background: transparent;
                color: var(--text-muted);
                font-size: 0.85rem;
                display: flex;
                align-items: center;
                justify-content: center;
                transition: all 0.2s;
            }
            .mp-expand:hover {
                background: var(--accent-light);
                color: var(--accent);
            }

            /* ==================== BOTTOM NAV ==================== */
            .bottom-nav {
                position: fixed;
                bottom: var(--nav-bottom);
                left: 50%;
                transform: translateX(-50%);
                z-index: 100;
                pointer-events: none;
                animation: navSlideUp 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.15s
                    both;
            }
            @keyframes navSlideUp {
                from {
                    opacity: 0;
                    transform: translateX(-50%) translateY(24px);
                }
                to {
                    opacity: 1;
                    transform: translateX(-50%) translateY(0);
                }
            }
            .bottom-nav-inner {
                pointer-events: auto;
                display: inline-flex;
                align-items: center;
                gap: 4px;
                padding: 6px 8px;
                background: rgba(255, 255, 255, 0.72);
                backdrop-filter: blur(32px) saturate(220%);
                -webkit-backdrop-filter: blur(32px) saturate(220%);
                border: 1px solid rgba(255, 255, 255, 0.55);
                border-radius: 22px;
                box-shadow:
                    0 2px 12px rgba(15, 18, 37, 0.07),
                    0 0 0 0.5px rgba(15, 18, 37, 0.03),
                    inset 0 1px 0 rgba(255, 255, 255, 0.9);
            }
            .nav-tab {
                position: relative;
                display: flex;
                flex-direction: column;
                align-items: center;
                gap: 2px;
                padding: 8px 18px;
                border: none;
                background: none;
                color: var(--text-muted);
                font-size: 0.56rem;
                font-weight: 600;
                letter-spacing: 0.03em;
                border-radius: 16px;
                z-index: 1;
                transition:
                    color 0.3s ease,
                    transform 0.2s ease;
            }
            .nav-tab i {
                font-size: 1.25rem;
                transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
                position: relative;
                z-index: 1;
                line-height: 1;
            }
            .nav-tab span {
                position: relative;
                z-index: 1;
                line-height: 1;
            }
            /* active pill */
            .nav-tab::before {
                content: "";
                position: absolute;
                inset: 0;
                background: var(--accent);
                border-radius: 16px;
                opacity: 0;
                transform: scale(0.6);
                transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
                z-index: 0;
            }
            .nav-tab.active {
                color: #fff;
            }
            .nav-tab.active::before {
                opacity: 1;
                transform: scale(1);
            }
            .nav-tab.active i {
                transform: scale(1.1) translateY(-1px);
            }
            .nav-tab:hover:not(.active) {
                color: var(--text-secondary);
            }
            .nav-tab:hover:not(.active)::before {
                opacity: 0.04;
                transform: scale(0.85);
                background: var(--accent);
            }
            .nav-tab:active {
                transform: scale(0.92);
            }

            /* ==================== EMPTY / SCROLL ==================== */
            .empty-state {
                text-align: center;
                padding: 2rem 1.5rem;
                color: var(--text-muted);
            }
            .empty-icon {
                width: 48px;
                height: 48px;
                background: var(--bg);
                border-radius: 50%;
                display: flex;
                align-items: center;
                justify-content: center;
                margin: 0 auto 0.75rem;
                font-size: 1.1rem;
                color: var(--text-muted);
                border: 1px solid var(--border-light);
                animation: float 3.5s ease-in-out infinite;
            }
            .empty-title {
                font-weight: 700;
                font-size: 0.82rem;
                color: var(--text-secondary);
                margin-bottom: 0.15rem;
            }
            .empty-desc {
                font-size: 0.74rem;
            }

            /* ==================== TOAST ==================== */
            .toast-container {
                position: fixed;
                top: 68px;
                left: 50%;
                transform: translateX(-50%);
                z-index: 9999;
                display: flex;
                flex-direction: column;
                gap: 0.4rem;
                pointer-events: none;
            }
            .toast-msg {
                background: var(--text-primary);
                color: #fff;
                padding: 0.5rem 1.1rem;
                border-radius: var(--radius-sm);
                font-size: 0.78rem;
                font-weight: 600;
                box-shadow: var(--shadow-lg);
                animation:
                    toastIn 0.35s cubic-bezier(0.22, 1, 0.36, 1) forwards,
                    toastOut 0.3s ease 2.5s forwards;
                pointer-events: auto;
                white-space: nowrap;
                letter-spacing: -0.01em;
            }
            .toast-msg.error {
                background: var(--danger);
            }
            .toast-msg.success {
                background: var(--success);
            }
            @keyframes toastIn {
                from {
                    opacity: 0;
                    transform: translateY(-10px) scale(0.95);
                }
                to {
                    opacity: 1;
                    transform: translateY(0) scale(1);
                }
            }
            @keyframes toastOut {
                from {
                    opacity: 1;
                }
                to {
                    opacity: 0;
                    transform: translateY(-8px) scale(0.95);
                }
            }

            /* ==================== ANIMATIONS ==================== */
            @keyframes itemFadeIn {
                from {
                    opacity: 0;
                    transform: translateY(7px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }
            @keyframes itemFadeOut {
                from {
                    opacity: 1;
                    transform: translateY(0);
                }
                to {
                    opacity: 0;
                    transform: translateY(-5px);
                }
            }
            .res-item.enter,
            .pl-item.enter {
                animation: itemFadeIn 0.35s ease forwards;
            }
            .res-item.leave,
            .pl-item.leave {
                animation: itemFadeOut 0.25s ease forwards;
            }
            .spinner-sm {
                width: 15px;
                height: 15px;
                border: 2.5px solid rgba(255, 255, 255, 0.3);
                border-top-color: #fff;
                border-radius: 50%;
                animation: spin 0.6s linear infinite;
                display: inline-block;
            }
            @keyframes spin {
                to {
                    transform: rotate(360deg);
                }
            }

            /* ==================== RESPONSIVE ==================== */
            /* Tablet */
            @media (min-width: 768px) {
                .page-container {
                    padding: 1.2rem 2rem 2rem;
                    padding-bottom: calc(var(--total-bottom) + 2rem);
                }
                .res-detail {
                    display: block;
                }
                .search-header {
                    padding: 1.8rem 2rem 0.4rem;
                }
                .search-input-wrap {
                    padding: 0.8rem 2rem;
                }
                .preview-card {
                    margin: 0 2rem 2rem;
                }
                .searchResults {
                    margin: 0 2rem 2rem;
                }
                .parse-hint {
                    padding: 0 2rem;
                }
                .search-tips {
                    padding: 2.5rem 2rem 3rem;
                }
                .about-body {
                    padding: 0.5rem 2rem 2rem;
                }
            }
            /* Large desktop */
            @media (min-width: 1200px) {
                :root {
                    --content-w: 960px;
                }
                .mini-player {
                    width: min(960px, calc(100% - 3rem));
                }
            }
            /* Small phones */
            @media (max-width: 380px) {
                :root {
                    --nav-bottom: 10px;
                }
                .nav-tab {
                    font-size: 0.54rem;
                }
                .nav-tab i {
                    font-size: 1.05rem;
                }
                .cache-pill {
                    display: none;
                }
                .search-header {
                    padding: 1.1rem 1.1rem 0.25rem;
                }
                .search-input-wrap {
                    padding: 0.6rem 1.1rem;
                }
                .preview-card {
                    margin: 0 1.1rem 1.1rem;
                }
                .searchResults {
                    margin: 0 1.1rem 1.1rem;
                }
                .parse-hint {
                    padding: 0 1.1rem;
                }
                .about-body {
                    padding: 0.4rem 1.1rem 1.2rem;
                }
            }
            /* Landscape phone */
            @media (max-height: 500px) and (orientation: landscape) {
                .top-header {
                    padding: 0.3rem 0.8rem;
                }
                .page-container {
                    padding: 0.5rem 1rem 1rem;
                }
                .search-tips {
                    padding: 0.8rem;
                }
                .tips-icon {
                    width: 40px;
                    height: 40px;
                    font-size: 0.9rem;
                    margin-bottom: 0.5rem;
                }
                .preview-cover-section {
                    padding: 0.6rem 0.8rem;
                }
                .preview-cover,
                .preview-cover-wrap {
                    width: 48px;
                    height: 48px;
                }
                .sr-list,
                .scroll-area {
                    max-height: 38vh;
                }
                .about-hero {
                    padding: 1.2rem 1rem 1rem;
                }
                .about-logo {
                    width: 52px;
                    height: 52px;
                }
            }
            /* Reduced motion */
            @media (prefers-reduced-motion: reduce) {
                *,
                *::before,
                *::after {
                    animation-duration: 0.01ms !important;
                    animation-iteration-count: 1 !important;
                    transition-duration: 0.01ms !important;
                }
            }