.classic-colors-nav {
    position: fixed !important;
    right: 20px;
    top: 300px;
    background: none;
    border: none;
    border-radius: 0;
    padding: 10px;
    width: 140px;
    box-shadow: none;
    z-index: 9999;
    overflow-y: auto;
    max-height: 80vh;
    display: none;
}


.classic-colors-nav.show {
    display: block !important;
}

.nav-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--card-border);
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    padding: 6px 30px 6px 8px;
    margin-bottom: 4px;
    font-size: 0.75rem;
    color: var(--text-color-secondary);
    cursor: pointer;
    border-radius: 0;
    transition: all 0.2s ease;
    text-align: right;
    position: relative;
    background: none !important;
}

.nav-item::after {
    content: "";
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 1px;
    background: var(--text-color-secondary);
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.nav-item:hover {
    color: var(--primary);
    background: none !important;
}

.nav-item:hover::after {
    background: var(--primary);
}

.nav-item.active {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    background: none !important;
}

.nav-item.active::before {
    content: "▶";
    margin-right: 4px;
}

.nav-item.active::after {
    background: var(--primary);
    height: 2px;
}

.color-section {
    margin-bottom: 40px;
}

.usage-tip-block {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg) 100%);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 25px;
    margin-top: 30px;
    box-shadow: 0 4px 20px var(--shadow-color);
    border-left: 4px solid var(--accent-color);
}


.color-scheme-tips {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg) 100%);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 25px;
    margin-top: 30px;
    box-shadow: 0 4px 20px var(--shadow-color);
    border-left: 4px solid rgba(59, 130, 246, 0.4);
}

.tips-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: var(--primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.tips-header i {
    margin-right: 8px;
    font-size: 1rem;
}

.tips-content {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.tips-content br {
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .classic-colors-nav {
        right: 10px;
        width: 140px;
        font-size: 0.8rem;
    }
    
    .nav-item {
        font-size: 0.75rem;
        padding: 4px 6px;
    }
    
    .nav-item.active {
        font-size: 0.85rem;
    }
}
    .color-scheme-tips {
        padding: 20px;
        margin-top: 20px;
    }
    
    .tips-header {
        font-size: 1rem;
    }
    
    .tips-content {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

.tip-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

.tip-header i {
    color: var(--accent-color);
    font-size: 1rem;
}

.tip-content {
    color: var(--text-color);
    line-height: 1.6;
    opacity: 0.9;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .usage-tip-block {
        padding: 20px;
        margin-top: 20px;
    }
    
    .tip-header {
        font-size: 1rem;
    }
    
    .tip-content {
        font-size: 0.9rem;
    }
}

.color-integrated-section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px var(--shadow-color);
}

.color-picker-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-display-container {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 25px;
}

@media (max-width: 900px) {
    .color-display-container {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
}

.color-preview {
    width: 120px;
    height: 120px;
    border-radius: 12px;
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 15px var(--shadow-color);
    flex-shrink: 0;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    background-color: #3B82F6;
}

.color-preview:hover::after {
    content: '点击选择颜色';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    border-radius: 10px;
}

.color-values-container {
    flex: 1;
    display: flex;
    gap: 30px;
    justify-content: space-between;
}

@media (max-width: 768px) {
    .color-values-container {
        flex-direction: column;
        gap: 20px;
    }
}

.color-value-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.color-value-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hex-input-container {
    width: 100%;
    position: relative;
}

.hex-input {
    width: 100%;
    padding: 14px 45px 14px 15px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 1.1rem;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    text-align: center;
    letter-spacing: 1px;
}

.hex-input:focus {
    outline: none;
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.paste-hex-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    transition: color 0.2s ease;
}

.paste-hex-btn:hover {
    color: var(--primary-light);
}

.hsl-controls {
    margin-top: 15px;
    width: 100%;
}

.hsl-control-group,
.rgb-channel-container,
.cmyk-channel-container {
    margin-bottom: 15px;
}

.control-group-label,
.channel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.control-label,
.channel-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    min-width: 120px;
}

.value-display {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
}

.number-input {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    width: 50px;
    text-align: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 5px 8px;
    transition: all 0.2s ease;
    -moz-appearance: textfield;
    appearance: textfield;
}

.number-input:focus {
    outline: none;
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.number-input::-webkit-outer-spin-button,
.number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.rgb-display, .cmyk-display {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.rgb-channel-container,
.cmyk-channel-container {
    padding: 10px 12px;
    background: rgba(59, 130, 246, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .rgb-channel-container,
[data-theme="light"] .cmyk-channel-container {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.separator {
    width: 1px;
    background: var(--card-border);
    align-self: stretch;
    margin: 20px 0;
}

@media (max-width: 768px) {
    .separator {
        width: 100%;
        height: 1px;
        margin: 20px 0;
    }
}

.color-schemes-container {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--card-border);
}

.scheme-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

@media (max-width: 900px) {
    .scheme-grid {
        grid-template-columns: 1fr;
    }
}

.scheme-group {
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    padding: 20px;
    height: 100%;
    transition: all 0.3s ease;
}

[data-theme="light"] .scheme-group {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.scheme-group:hover {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

[data-theme="light"] .scheme-group:hover {
    border-color: rgba(255, 152, 0, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.scheme-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .scheme-title {
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.scheme-colors {
    display: grid;
    gap: 15px;
    margin-bottom: 20px;
    position: relative;
}

.scheme-colors[data-count="5"] {
    grid-template-columns: repeat(5, 1fr);
    grid-template-rows: 1fr;
}

.scheme-colors[data-count="6"] {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.scheme-color {
    height: 70px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    box-shadow: 0 1px 4px var(--shadow-color);
    border: none;
    margin: 0;
    overflow: hidden;
}

.scheme-color:hover {
    transform: translateY(2px);
    box-shadow: 0 3px 10px var(--shadow-color);
}

.scheme-color-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 0 0 6px 6px;
    z-index: 1;
    transition: all 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    white-space: nowrap;
    overflow: visible;
}

.scheme-color-label span:first-child {
    text-align: left;
    flex: 1;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
}

.scheme-color-label span:last-child {
    text-align: right;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.7rem;
    margin-left: 8px;
    flex-shrink: 0;
}

.scheme-color:hover .scheme-color-label {
    background: rgba(0, 0, 0, 0.85);
    font-size: 0.8rem;
}

.scheme-description {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.6;
    margin-top: 15px;
    padding-left: 15px;
    border-left: 3px solid var(--primary);
    background: rgba(59, 130, 246, 0.05);
    padding: 12px 15px;
    border-radius: 0 6px 6px 0;
    position: relative;
}

[data-theme="light"] .scheme-description {
    border-left: 3px solid rgba(255, 152, 0, 0.3);
    background: rgba(0, 0, 0, 0.02);
}

.scheme-description::before {
    content: '';
    position: absolute;
    left: -3px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary), var(--primary-light));
    border-radius: 3px;
}

[data-theme="light"] .scheme-description::before {
    background: linear-gradient(to bottom, #FF9800, #FFB74D);
}

.classic-colors-section {
    margin-top: 40px;
    margin-bottom: 30px;
    text-align: left;
}

.classic-colors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 20px;
}

@media (max-width: 900px) {
    .classic-colors-grid {
        grid-template-columns: 1fr;
    }
}


.classic-color-group[data-id="pantone_annual"] {
    grid-column: span 2;
    max-width: 100%;
}

@media (max-width: 768px) {
    .classic-color-group[data-id="pantone_annual"] {
        grid-column: span 1;
        max-width: calc(100% - 20px);
        margin: 0 10px;
    }
}

.classic-color-group {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 25px;
    height: 100%;
    transition: all 0.3s ease;
}

.classic-color-group:hover {
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

[data-theme="light"] .classic-color-group:hover {
    border-color: rgba(0, 0, 0, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.classic-group-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--card-border);
}

.classic-color-palette {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}


.classic-color-group[data-id="pantone_annual"] .classic-color-palette {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.classic-color-group[data-id="pantone_annual"] .classic-color-item {
    height: 60px;
}

@media (max-width: 1200px) {
    .classic-color-group[data-id="pantone_annual"] .classic-color-palette {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .classic-color-group[data-id="pantone_annual"] .classic-color-item {
        height: 55px;
    }
}

@media (max-width: 768px) {
    .classic-color-group[data-id="pantone_annual"] .classic-color-palette {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .classic-color-group[data-id="pantone_annual"] .classic-color-item {
        height: 50px;
    }
}

.classic-color-item {
    height: 60px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    box-shadow: 0 1px 4px var(--shadow-color);
    overflow: hidden;
}

.classic-color-item:hover {
    transform: translateY(2px);
    box-shadow: 0 3px 10px var(--shadow-color);
}

.classic-color-code {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 0 0 6px 6px;
    z-index: 1;
    transition: all 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    white-space: nowrap;
    overflow: visible;
}

.classic-color-code span:first-child {
    text-align: left;
    flex: 1;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
}

.classic-color-code span:last-child {
    text-align: right;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.7rem;
    margin-left: 8px;
    flex-shrink: 0;
}


.classic-color-group[data-id="pantone_annual"] .classic-color-code {
    justify-content: flex-start;
}

.classic-color-group[data-id="pantone_annual"] .classic-color-code span:first-child {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.9);
    text-align: left;
    margin-right: 8px;
}

.classic-color-group[data-id="pantone_annual"] .classic-color-code span:last-child {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.6);
    text-align: right;
    flex: 1;
}

.classic-color-item:hover .classic-color-code {
    font-size: 0.8rem;
    background: rgba(0, 0, 0, 0.85);
}


.classic-color-group[data-id="pantone_annual"] .classic-color-item:hover .classic-color-code span:first-child {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 1);
}

.classic-color-group[data-id="pantone_annual"] .classic-color-item:hover .classic-color-code span:last-child {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.9);
}

.classic-color-desc {
    font-size: 0.8rem;
    color: var(--gray);
    line-height: 1.5;
    margin-top: 10px;
    background: rgba(59, 130, 246, 0.05);
    padding: 12px 15px;
    border-radius: 6px;
}

[data-theme="light"] .classic-color-desc {
    background: rgba(0, 0, 0, 0.02);
}



.color-scheme-controls {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.color-category-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.color-category-row {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    width: 100%;
}

.category-group-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
    min-width: 80px;
}

.color-tag-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    flex: 1 1 100%;
    width: 100%;
    margin-bottom: 6px;
}


.color-section-label {
    cursor: pointer;
    background: rgba(107, 114, 128, 0.12);
    color: #6B7280;
    border: 1px solid rgba(107, 114, 128, 0.15);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 20px;
    transition: all 0.2s ease;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    backface-visibility: hidden;
    transform: translateZ(0);
    white-space: nowrap;
    line-height: 1.4;
    user-select: none;
}


.color-section-label:hover {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    border-color: rgba(var(--primary-rgb), 0.3);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
}


.color-section-label.active {
    font-weight: 600;
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
    box-shadow: 0 3px 8px rgba(var(--primary-rgb), 0.25);
    transform: translateY(-1px);
}


.color-tag-row .category-tag {
    cursor: pointer;
    background: rgba(107, 114, 128, 0.08);
    color: #6B7280;
    border: 1px solid rgba(107, 114, 128, 0.15);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 20px;
    transition: all 0.2s ease;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    backface-visibility: hidden;
    transform: translateZ(0);
    white-space: nowrap;
    line-height: 1.4;
}


.color-tag-row .category-tag:hover {
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    border-color: rgba(var(--primary-rgb), 0.3);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.15);
}


.color-tag-row .category-tag.active {
    font-weight: 600;
    background: var(--primary) !important;
    color: white !important;
    border-color: var(--primary) !important;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.25);
    transform: translateY(-1px);
}


[data-theme="light"] .color-tag.category-tag:hover:not(.active) {
    background: rgba(255, 152, 0, 0.15) !important;
    color: #FF9800 !important;
    border-color: rgba(255, 152, 0, 0.3) !important;
}


[data-theme="dark"] .color-tag.category-tag:hover:not(.active) {
    background: rgba(59, 130, 246, 0.2) !important;
    color: #60A5FA !important;
    border-color: rgba(59, 130, 246, 0.4) !important;
}



.classic-subgroup {
    margin-bottom: 25px;
}

.classic-subgroup:last-child {
    margin-bottom: 0;
}

.classic-subgroup-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.classic-subgroup-title::before {
    content: '';
    width: 4px;
    height: 16px;
    background: var(--primary);
    border-radius: 2px;
    flex-shrink: 0;
}

.classic-color-palette {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-bottom: 0;
}


@media (max-width: 768px) {
    .classic-color-palette {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }
    
    .classic-color-item {
        height: 50px;
    }
    
    .classic-subgroup-title {
        font-size: 0.9rem;
        margin-bottom: 10px;
    }
    
    .classic-subgroup {
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .classic-color-palette {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }
    
    .classic-color-item {
        height: 45px;
    }
    
    .classic-color-code {
        padding: 3px 6px;
        font-size: 0.7rem;
    }
}


.color-family-heading {
    display: flex;
    align-items: center;
    margin: 8px 0 12px 0;
    padding: 12px 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow-color);
    backdrop-filter: blur(10px);
}

.color-family-heading::before {
    content: '';
    width: 3px;
    height: 20px;
    background: var(--accent-color);
    margin-right: 12px;
    flex-shrink: 0;
    border-radius: 2px;
}

.heading-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.2;
}


@media (prefers-color-scheme: light) {
    .color-family-heading::before {
        background: #007acc;
    }
    
    .heading-text {
        color: #333333;
        font-weight: 700;
    }
}


@media (prefers-color-scheme: dark) {
    .color-family-heading::before {
        background: var(--accent-color);
    }
    
    .heading-text {
        color: var(--text-color);
        font-weight: 600;
    }
}