:root {
    --tools-accent: #713dea;
    --tools-accent-soft: #ab7aff;
    --tools-border: rgba(221, 216, 238, 0.9);
    --tools-shadow: 0 16px 34px rgba(28, 21, 55, 0.08);
}

body.page-tools {
    background: radial-gradient(circle at 12% 0%, rgba(112, 61, 234, 0.12), transparent 34%),
        radial-gradient(circle at 100% 100%, rgba(95, 142, 255, 0.08), transparent 36%),
        #f7f8fc;
}

body.page-tools .main-content {
    margin-left: var(--mx-sidebar-width);
    width: calc(100% - var(--mx-sidebar-width));
    min-height: 100vh;
    padding: clamp(22px, 3vw, 30px) 0 56px;
    background: transparent;
    border-radius: 0;
}

body.page-tools .main-content > .container {
    max-width: 1640px;
    padding: 0 clamp(18px, 2.8vw, 40px);
}

.tools-panel {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--tools-border);
    border-radius: 22px;
    box-shadow: var(--tools-shadow);
    padding: clamp(16px, 2vw, 24px);
}

.tool-catalog {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 16px;
}

.tool-chip {
    border: 1px solid rgba(111, 95, 161, 0.24);
    background: #fff;
    color: #3b315d;
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    padding: 10px 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tool-chip span {
    font-size: 11px;
    color: rgba(59, 49, 93, 0.68);
    margin-left: 6px;
    font-weight: 500;
}

.tool-chip.active {
    border-color: rgba(113, 61, 234, 0.55);
    background: rgba(113, 61, 234, 0.12);
    color: var(--tools-accent);
}

.tool-chip.disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.tool-content {
    display: none;
}

.tool-content.active {
    display: block;
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
    gap: clamp(14px, 2vw, 22px);
    align-items: start;
}

.split-control-card,
.split-result-card {
    border-radius: 18px;
    border: 1px solid rgba(225, 220, 240, 0.95);
    background: #fff;
    box-shadow: 0 10px 22px rgba(27, 20, 53, 0.06);
}

.split-control-card {
    padding: 16px;
    position: sticky;
    top: 12px;
}

.split-control-card h2,
.split-result-head h2 {
    margin: 0;
    color: #2a1f4a;
    font-size: 16px;
}

.split-upload-zone {
    margin-top: 12px;
    border: 1.5px dashed rgba(113, 61, 234, 0.35);
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(113, 61, 234, 0.08), rgba(113, 61, 234, 0.03));
    padding: 18px 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    display: block;
}

.split-upload-zone input {
    display: none;
}

.split-upload-zone:hover,
.split-upload-zone.is-dragover {
    border-color: rgba(113, 61, 234, 0.62);
    background: linear-gradient(180deg, rgba(113, 61, 234, 0.16), rgba(113, 61, 234, 0.05));
}

.split-upload-icon {
    width: 36px;
    height: 36px;
    margin: 0 auto 8px;
    border-radius: 10px;
    background: #fff;
    border: 1px solid rgba(113, 61, 234, 0.28);
    color: var(--tools-accent);
    font-size: 24px;
    line-height: 33px;
    font-weight: 600;
}

.split-upload-title {
    font-size: 13px;
    font-weight: 600;
    color: #322555;
}

.split-upload-sub {
    margin-top: 4px;
    font-size: 12px;
    color: rgba(50, 37, 85, 0.7);
}

.split-queue {
    margin-top: 14px;
}

.split-queue-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
    color: rgba(53, 40, 92, 0.8);
}

.split-queue-head strong {
    font-size: 13px;
    color: #2f2252;
}

.split-queue-list {
    max-height: 220px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 4px;
}

.split-queue-item {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 28px;
    gap: 8px;
    align-items: center;
    background: rgba(246, 244, 252, 0.85);
    border: 1px solid rgba(216, 208, 238, 0.92);
    border-radius: 10px;
    padding: 6px;
}

.split-queue-thumb {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    background: #f0edf8;
}

.split-queue-text {
    min-width: 0;
}

.split-queue-name {
    font-size: 12px;
    font-weight: 600;
    color: #2c214d;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.split-queue-meta {
    font-size: 11px;
    color: rgba(44, 33, 77, 0.68);
    margin-top: 2px;
}

.split-queue-remove {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 8px;
    background: rgba(113, 61, 234, 0.1);
    color: #5e38c4;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
}

.split-queue-remove:hover {
    background: rgba(113, 61, 234, 0.2);
}

.split-settings {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.split-settings label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: rgba(43, 34, 74, 0.82);
    font-size: 12px;
    font-weight: 500;
}

.split-settings label:not(.inline-setting):not(.checkbox-row) {
    grid-column: span 2;
}

.split-settings select,
.split-settings input[type="range"] {
    width: 100%;
}

.split-settings select {
    height: 36px;
    border: 1px solid rgba(170, 158, 208, 0.6);
    border-radius: 10px;
    padding: 0 10px;
    background: #fff;
    color: #2f2352;
}

.checkbox-row {
    flex-direction: row !important;
    align-items: flex-start;
    gap: 8px !important;
    line-height: 1.4;
}

.checkbox-row input {
    margin-top: 2px;
}

.split-actions {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.split-actions .btn {
    min-height: 36px;
    border-radius: 10px;
    font-size: 13px;
    padding: 0 14px;
}

.split-status {
    margin-top: 12px;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 12px;
    border: 1px solid rgba(181, 169, 217, 0.5);
    background: rgba(247, 244, 255, 0.8);
    color: #3f2f69;
}

.split-status[data-state="working"] {
    background: rgba(255, 239, 205, 0.62);
    border-color: rgba(255, 182, 81, 0.46);
    color: #795311;
}

.split-status[data-state="success"] {
    background: rgba(209, 246, 228, 0.74);
    border-color: rgba(86, 184, 137, 0.42);
    color: #1c6547;
}

.split-status[data-state="error"] {
    background: rgba(255, 223, 228, 0.72);
    border-color: rgba(231, 94, 122, 0.45);
    color: #84253d;
}

.split-result-card {
    min-height: 560px;
    padding: 14px;
}

.split-result-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 2px 12px;
    border-bottom: 1px solid rgba(225, 220, 240, 0.76);
}

.split-result-meta {
    color: rgba(55, 43, 96, 0.66);
    font-size: 12px;
}

.split-empty {
    margin-top: 18px;
    border-radius: 14px;
    border: 1px dashed rgba(180, 170, 220, 0.6);
    background: rgba(246, 243, 254, 0.7);
    color: rgba(65, 50, 112, 0.7);
    font-size: 13px;
    text-align: center;
    padding: 44px 20px;
}

.split-result-list {
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 12px;
}

.split-result-group {
    border: 1px solid rgba(224, 217, 244, 0.96);
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 8px 16px rgba(26, 19, 48, 0.05);
    overflow: hidden;
}

.split-result-group-head {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(231, 225, 247, 0.84);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.split-group-title {
    font-size: 12px;
    font-weight: 600;
    color: #2f2450;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 78%;
}

.split-group-meta {
    font-size: 11px;
    color: rgba(47, 36, 80, 0.66);
    margin-top: 2px;
}

.split-group-download {
    border: 1px solid rgba(113, 61, 234, 0.25);
    background: rgba(113, 61, 234, 0.08);
    color: var(--tools-accent);
    border-radius: 8px;
    padding: 5px 8px;
    font-size: 11px;
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
}

.split-group-download:hover {
    background: rgba(113, 61, 234, 0.14);
}

.split-tile-grid {
    padding: 10px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
    gap: 8px;
}

.split-tile-item {
    border: 1px solid rgba(220, 211, 242, 0.9);
    border-radius: 10px;
    padding: 4px;
    background: rgba(248, 246, 255, 0.65);
}

.split-tile-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    object-fit: cover;
    background: #f1edf9;
}

.split-tile-caption {
    margin-top: 4px;
    text-align: center;
    font-size: 10px;
    color: rgba(49, 38, 84, 0.74);
}

body.page-tools.theme-night {
    background: radial-gradient(circle at 14% 0%, rgba(116, 92, 186, 0.22), transparent 38%),
        radial-gradient(circle at 100% 100%, rgba(67, 115, 172, 0.17), transparent 38%),
        #121522;
}

body.page-tools.theme-night .tools-panel,
body.page-tools.theme-night .split-control-card,
body.page-tools.theme-night .split-result-card,
body.page-tools.theme-night .split-result-group {
    background: rgba(21, 25, 40, 0.92);
    border-color: rgba(112, 116, 154, 0.35);
}

body.page-tools.theme-night .split-upload-zone {
    background: linear-gradient(180deg, rgba(113, 61, 234, 0.24), rgba(113, 61, 234, 0.12));
    border-color: rgba(174, 139, 255, 0.45);
}

body.page-tools.theme-night .split-queue-item,
body.page-tools.theme-night .split-tile-item {
    background: rgba(34, 40, 61, 0.85);
    border-color: rgba(121, 132, 171, 0.38);
}

body.page-tools.theme-night .split-control-card h2,
body.page-tools.theme-night .split-result-head h2,
body.page-tools.theme-night .split-queue-name,
body.page-tools.theme-night .split-group-title,
body.page-tools.theme-night .tool-chip,
body.page-tools.theme-night .split-settings label,
body.page-tools.theme-night .split-queue-head,
body.page-tools.theme-night .split-result-meta,
body.page-tools.theme-night .split-group-meta,
body.page-tools.theme-night .split-empty,
body.page-tools.theme-night .split-tile-caption,
body.page-tools.theme-night .split-status {
    color: rgba(232, 235, 255, 0.9);
}

body.page-tools.theme-night .tool-chip {
    background: rgba(42, 48, 75, 0.8);
    border-color: rgba(140, 147, 186, 0.5);
}

body.page-tools.theme-night .tool-chip.active {
    background: rgba(113, 61, 234, 0.24);
    color: #d8c7ff;
    border-color: rgba(167, 130, 255, 0.68);
}

body.page-tools.theme-night .tool-chip span {
    color: rgba(219, 223, 245, 0.72);
}

body.page-tools.theme-night .split-settings select {
    background: rgba(30, 36, 57, 0.95);
    border-color: rgba(131, 140, 177, 0.6);
    color: rgba(235, 238, 255, 0.95);
}

body.page-tools.theme-night .split-status[data-state="working"] {
    color: #ffdba0;
}

body.page-tools.theme-night .split-status[data-state="success"] {
    color: #9de8c5;
}

body.page-tools.theme-night .split-status[data-state="error"] {
    color: #ffb6c6;
}

@media (max-width: 1280px) {
    .split-layout {
        grid-template-columns: 1fr;
    }

    .split-control-card {
        position: static;
    }

    .split-result-list {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 900px) {
    body.page-tools .main-content {
        margin-left: 0;
        width: 100%;
        padding: 18px 0 32px;
    }

    .split-settings {
        grid-template-columns: 1fr;
    }

    .split-settings label,
    .split-settings label:not(.inline-setting):not(.checkbox-row) {
        grid-column: span 1;
    }
}

@media (max-width: 600px) {
    .split-result-list {
        grid-template-columns: 1fr;
    }

    .split-actions .btn {
        width: 100%;
    }
}