:root {
    --primary-color: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --accent-color: #2563eb;
    --text-primary: #374151;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --background-primary: #ffffff;
    --background-secondary: #f8fafc;
    --background-accent: #f1f5f9;
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1),
        0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1),
        0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1),
        0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto",
        "Helvetica Neue", Arial, sans-serif;
    background: var(--background-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--background-primary);
}

.contributors-section {
    margin-top: 3rem;
    padding: 2.5rem;
    background: linear-gradient(
        135deg,
        var(--background-secondary) 0%,
        var(--background-accent) 100%
    );
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
}

.contributors-header {
    text-align: center;
    margin-bottom: 2rem;
}

.contributors-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.contributors-title i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.contributors-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.contributors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
}

.contributor-avatar {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: visible;
    border: 3px solid var(--background-primary);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    cursor: pointer;
}

.contributor-avatar:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.contributor-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.contributor-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10000;
    margin-bottom: 0.5rem;
    box-shadow: var(--shadow-md);
    pointer-events: none;
}

.contributor-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--text-primary);
}

.contributor-avatar:hover .contributor-tooltip {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateX(-50%) translateY(-2px);
}

.become-contributor {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
}

.contributor-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.become-contributor-btn {
    padding: 1rem 2rem;
    background: linear-gradient(
        135deg,
        var(--primary-color),
        var(--primary-dark)
    );
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
}

.become-contributor-btn:hover {
    background: linear-gradient(
        135deg,
        var(--primary-dark),
        var(--primary-color)
    );
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.become-contributor-btn:active {
    transform: translateY(0);
}

.become-contributor-btn i {
    font-size: 1.2rem;
}

@media (max-width: 768px) {
    .contributors-section {
        padding: 1.5rem;
        margin-top: 2rem;
    }

    .contributors-title {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .contributors-grid {
        gap: 0.75rem;
    }

    .contributor-avatar {
        width: 50px;
        height: 50px;
    }

    .contributor-tooltip {
        font-size: 0.7rem;
        padding: 0.4rem 0.6rem;
    }

    .contributor-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .become-contributor-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
    min-height: 64px;
    margin-bottom: 32px;
    padding-bottom: 10px;
}

.nav-left h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #1039a2;
    margin: 0;
    letter-spacing: 1px;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.nav-right {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item a {
    display: block;
    font-size: 1.08rem;
    font-weight: 500;
    color: #1039a2;
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 6px;
    transition: background 0.18s, color 0.18s;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    letter-spacing: 0.5px;
}

.nav-item a:hover,
.nav-item a:focus {
    background: #f0f4ff;
    color: #1a53c1;
    text-decoration: none;
}

.header-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem; /* Space between Like and Subscribe buttons */
}

.header h1 {
    font-size: 3.2rem;
    font-weight: 700;
    background: linear-gradient(to right, #00bfff, #000080);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: 0.03em;
    padding: 5px 0;
    margin: 0;
    position: relative;
}

.header::before {
    display: none;
}

.controls-section {
    padding: 0 0 1.5rem;
    margin-bottom: 0.5rem;
    margin-top: -0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.control-row {
    display: flex;
    gap: 1.5rem;
    align-items: flex-end;
    flex-wrap: wrap;
    padding-left: 20px;
    padding-top: 0;
    padding-bottom: 0;
}

.control-row:first-child {
    justify-content: flex-start;
    align-items: center;
    padding-right: 20px;
    gap: 1rem;
}

.control-row:first-child .model-switcher {
    flex: 0 0 auto;
}

.control-row:first-child .improvement-type-section {
    flex: 0 0 auto;
}

.control-row:first-child .type-buttons-section {
    flex: 0 0 auto;
}

.control-row:first-child .search-box-container {
    flex: 0 0 auto;
    margin-left: 0;
    margin-bottom: -2.5rem;
}

.control-row:first-child .size-range-section {
    flex: 0 0 auto;
    margin-left: auto;
    width: 245px;
    margin-bottom: -2.5rem;
}

.control-row:last-child {
    display: flex;
    justify-content: flex-start;
    align-items: flex-end;
    gap: 1.5rem;
    padding-left: 20px;
    padding-right: 20px;
}

.control-row:last-child .data-tag-buttons-section {
    flex: 1;
    min-width: 0;
}

.control-row:last-child .size-range-section {
    flex: 0 0 auto;
    min-width: 250px;
    max-width: 300px;
}

.control-row:last-child .search-box-container {
    flex: 0 0 auto;
    min-width: 200px;
    margin-left: auto;
    margin-top: 2rem;
}

.model-switcher,
.data-domain-buttons-section,
.search-box-container {
    flex-grow: 1;
    flex-basis: 150px;
}

.model-switcher label,
.type-buttons-section label,
.data-tag-buttons-section label,
.size-range-section label,
.improvement-type-section label,
.search-box-container label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    margin-top: 0.5rem;
}

.control-row:last-child .data-tag-buttons-section label,
.control-row:last-child .size-range-section label {
    margin-top: 0;
}

.control-row:first-child .size-range-section label {
    margin-bottom: -1rem;
    margin-top: 0.25rem;
    line-height: 1;
    margin-left: 1rem;
}

.model-buttons-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.model-buttons-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.model-button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-medium);
    background-color: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    font-size: 0.875rem;
    text-align: center;
}

.model-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--background-accent);
}

.model-button.active {
    background-color: var(--primary-dark);
    color: var(--background-primary);
    border-color: var(--primary-dark);
}

.search-box-container {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.search-box-container .search-box {
    width: 100%;
}

.search-box-container label {
    display: block;
    margin-bottom: 0;
}

.data-tag-buttons-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
}

.tag-filter-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.tag-filter-mode {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.filter-mode-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.filter-mode-radio {
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary-color);
}

.filter-mode-text {
    font-weight: 500;
}

.tag-buttons-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag-button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-medium);
    background-color: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    text-align: center;
}

.tag-button i {
    margin-right: 0.35rem;
    font-size: 0.9em;
}

.tag-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--background-accent);
}

.tag-button.active {
    background-color: var(--primary-dark);
    color: var(--background-primary);
    border-color: var(--primary-dark);
}

/* 选项卡按钮特定类型颜色样式 */
.tag-button[data-type="general"] {
    background-color: #e3f2fd;
    color: #1976d2;
    border-color: #bbdefb;
}

.tag-button[data-type="general"]:hover {
    background-color: #bbdefb;
    color: #1565c0;
    border-color: #90caf9;
}

.tag-button[data-type="general"].active {
    background-color: #1976d2;
    color: white;
    border-color: #1976d2;
}

.tag-button[data-type="math"] {
    background-color: #f3e5f5;
    color: #7b1fa2;
    border-color: #e1bee7;
}

.tag-button[data-type="math"]:hover {
    background-color: #e1bee7;
    color: #6a1b9a;
    border-color: #ce93d8;
}

.tag-button[data-type="math"].active {
    background-color: #7b1fa2;
    color: white;
    border-color: #7b1fa2;
}

.tag-button[data-type="code"] {
    background-color: #e8f5e8;
    color: #388e3c;
    border-color: #c8e6c9;
}

.tag-button[data-type="code"]:hover {
    background-color: #c8e6c9;
    color: #2e7d32;
    border-color: #a5d6a7;
}

.tag-button[data-type="code"].active {
    background-color: #388e3c;
    color: white;
    border-color: #388e3c;
}

.tag-button[data-type="science"] {
    background-color: #fff3e0;
    color: #f57c00;
    border-color: #ffcc02;
}

.tag-button[data-type="science"]:hover {
    background-color: #ffe0b2;
    color: #ef6c00;
    border-color: #ffb74d;
}

.tag-button[data-type="science"].active {
    background-color: #f57c00;
    color: white;
    border-color: #f57c00;
}

.tag-button[data-type="reasoning"] {
    background-color: #e8eaf6;
    color: #3f51b5;
    border-color: #c5cae9;
}

.tag-button[data-type="reasoning"]:hover {
    background-color: #c5cae9;
    color: #303f9f;
    border-color: #9fa8da;
}

.tag-button[data-type="reasoning"].active {
    background-color: #3f51b5;
    color: white;
    border-color: #3f51b5;
}

/* 数据领域按钮组样式 */
.data-domain-buttons-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.domain-buttons-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.domain-button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-medium);
    background-color: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    text-align: center;
}

.domain-button i {
    margin-right: 0.35rem;
    font-size: 0.9em;
}

.domain-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--background-accent);
}

.domain-button.active {
    background-color: var(--primary-dark);
    color: var(--background-primary);
    border-color: var(--primary-dark);
}

/* 领域按钮特定类型颜色样式 */
.domain-button[data-type="general"] {
    background-color: #e3f2fd;
    color: #1976d2;
    border-color: #bbdefb;
}

.domain-button[data-type="general"]:hover {
    background-color: #bbdefb;
    color: #1565c0;
    border-color: #90caf9;
}

.domain-button[data-type="general"].active {
    background-color: #1976d2;
    color: white;
    border-color: #1976d2;
}

.domain-button[data-type="math"] {
    background-color: #f3e5f5;
    color: #7b1fa2;
    border-color: #e1bee7;
}

.domain-button[data-type="math"]:hover {
    background-color: #e1bee7;
    color: #6a1b9a;
    border-color: #ce93d8;
}

.domain-button[data-type="math"].active {
    background-color: #7b1fa2;
    color: white;
    border-color: #7b1fa2;
}

.domain-button[data-type="code"] {
    background-color: #e8f5e8;
    color: #388e3c;
    border-color: #c8e6c9;
}

.domain-button[data-type="code"]:hover {
    background-color: #c8e6c9;
    color: #2e7d32;
    border-color: #a5d6a7;
}

.domain-button[data-type="code"].active {
    background-color: #388e3c;
    color: white;
    border-color: #388e3c;
}

.domain-button[data-type="science"] {
    background-color: #fff3e0;
    color: #f57c00;
    border-color: #ffcc02;
}

.domain-button[data-type="science"]:hover {
    background-color: #ffe0b2;
    color: #ef6c00;
    border-color: #ffb74d;
}

.domain-button[data-type="science"].active {
    background-color: #f57c00;
    color: white;
    border-color: #f57c00;
}

.domain-button[data-type="reasoning"] {
    background-color: #e8eaf6;
    color: #3f51b5;
    border-color: #c5cae9;
}

.domain-button[data-type="reasoning"]:hover {
    background-color: #c5cae9;
    color: #303f9f;
    border-color: #9fa8da;
}

.domain-button[data-type="reasoning"].active {
    background-color: #3f51b5;
    color: white;
    border-color: #3f51b5;
}

.size-range-section {
    display: flex;
    flex-direction: column;
    gap: 0rem;
}

.size-slider-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.size-slider-wrapper {
    position: relative;
    padding: 10px;
    margin: 10px 0;
}

.size-slider-track {
    position: relative;
    height: 6px;
    background-color: var(--border-light);
    border-radius: 3px;
    margin: 10px 0;
}

.size-slider-range {
    position: absolute;
    height: 100%;
    background: linear-gradient(
        to right,
        var(--primary-color),
        var(--primary-light)
    );
    border-radius: 3px;
    transition: all 0.1s ease;
}

.size-slider {
    position: absolute;
    top: -7px;
    left: 0;
    width: 100%;
    height: 20px;
    background: transparent;
    pointer-events: none;
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
    padding: 0;
    outline: none;
}

.size-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 2px solid var(--background-primary);
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    box-shadow: var(--shadow-md);
    transition: all 0.2s ease;
    margin: 0;
}

.size-slider::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.size-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 2px solid var(--background-primary);
    border-radius: 50%;
    cursor: pointer;
    pointer-events: all;
    box-shadow: var(--shadow-md);
    transition: all 0.2s ease;
    -moz-appearance: none;
    margin: 0;
}

.size-slider::-moz-range-thumb:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.size-slider::-moz-range-track {
    background: transparent;
    border: none;
    height: 6px;
    outline: none;
}

.size-slider::-webkit-slider-track {
    background: transparent;
    border: none;
    height: 6px;
    outline: none;
}

.size-slider:focus {
    outline: none;
}

.size-slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.size-label-min,
.size-label-max {
    padding: 4px 8px;
    background: var(--background-accent);
    border-radius: var(--radius-sm);
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
}

.reset-button-container {
    margin-left: auto;
    align-self: flex-end;
    padding-bottom: 0;
}

.reset-btn {
    padding: 0.6rem 1rem;
    background: var(--background-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.reset-btn:hover {
    background: var(--background-accent);
    color: var(--text-primary);
    border-color: var(--border-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}
*/ .model-selector {
    display: flex;
    gap: 0.5rem;
}

.model-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--blue-200);
    background: var(--white);
    color: var(--gray-700);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.model-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.model-btn.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.switch-buttons {
    display: flex;
    gap: 0.5rem;
}

.switch-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--border-medium);
    background: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.875rem;
}

.switch-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--background-accent);
}

.switch-btn.active {
    background: var(--primary-color);
    color: var(--background-primary);
    border-color: var(--primary-color);
}

.filter-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.type-buttons-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-left: auto;
    flex-shrink: 0;
    margin-right: 0;
}

.type-buttons-container {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.type-button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-medium);
    background-color: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    text-align: center;
}

.type-button i {
    margin-right: 0.35rem;
    font-size: 0.9em;
}

.type-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--background-accent);
}

.type-button.active {
    background-color: var(--primary-dark);
    color: var(--background-primary);
    border-color: var(--primary-dark);
}

/* 类型按钮特定类型颜色样式 */
.type-button[data-type="general"] {
    background-color: #e3f2fd;
    color: #1976d2;
    border-color: #bbdefb;
}

.type-button[data-type="general"]:hover {
    background-color: #bbdefb;
    color: #1565c0;
    border-color: #90caf9;
}

.type-button[data-type="general"].active {
    background-color: #1976d2;
    color: white;
    border-color: #1976d2;
}

.type-button[data-type="math"] {
    background-color: #f3e5f5;
    color: #7b1fa2;
    border-color: #e1bee7;
}

.type-button[data-type="math"]:hover {
    background-color: #e1bee7;
    color: #6a1b9a;
    border-color: #ce93d8;
}

.type-button[data-type="math"].active {
    background-color: #7b1fa2;
    color: white;
    border-color: #7b1fa2;
}

.type-button[data-type="code"] {
    background-color: #e8f5e8;
    color: #388e3c;
    border-color: #c8e6c9;
}

.type-button[data-type="code"]:hover {
    background-color: #c8e6c9;
    color: #2e7d32;
    border-color: #a5d6a7;
}

.type-button[data-type="code"].active {
    background-color: #388e3c;
    color: white;
    border-color: #388e3c;
}

.type-button[data-type="science"] {
    background-color: #fff3e0;
    color: #f57c00;
    border-color: #ffcc02;
}

.type-button[data-type="science"]:hover {
    background-color: #ffe0b2;
    color: #ef6c00;
    border-color: #ffb74d;
}

.type-button[data-type="science"].active {
    background-color: #f57c00;
    color: white;
    border-color: #f57c00;
}

.type-button[data-type="reasoning"] {
    background-color: #e8eaf6;
    color: #3f51b5;
    border-color: #c5cae9;
}

.type-button[data-type="reasoning"]:hover {
    background-color: #c5cae9;
    color: #303f9f;
    border-color: #9fa8da;
}

.type-button[data-type="reasoning"].active {
    background-color: #3f51b5;
    color: white;
    border-color: #3f51b5;
}

.improvement-type-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 180px;
}

.improvement-type-section label {
    text-align: left;
}

.improvement-type-buttons {
    display: flex;
    gap: 0.5rem;
}

.improvement-type-button {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border-medium);
    background-color: var(--background-primary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    font-weight: 500;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    text-align: center;
}

.improvement-type-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--background-accent);
}

.improvement-type-button.active {
    background-color: var(--primary-dark);
    color: var(--background-primary);
    border-color: var(--primary-dark);
}

.filter-tags-row {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.75rem;
    overflow-x: auto;
    padding: 0.5rem 0;
    margin: 0 -0.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--border-medium) transparent;
    white-space: nowrap;
}

.filter-tags-row::-webkit-scrollbar {
    height: 4px;
}

.filter-tags-row::-webkit-scrollbar-track {
    background: transparent;
}

.filter-tags-row::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 10px;
}

.filter-tag-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

.filter-tag-group:not(:first-child)::before {
    content: "";
    position: absolute;
    left: -0.5rem;
    height: 60%;
    width: 1px;
    background-color: var(--border-light);
}

.filter-tag {
    padding: 0.4rem 0.8rem;
    border-radius: 9999px;
    background: var(--background-accent);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.filter-tag i {
    font-size: 0.9rem;
}

.filter-tag:hover {
    background: var(--background-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.filter-tag.active {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.filter-tag.primary-tag {
    background: var(--background-secondary);
    color: var(--primary-color);
    border-color: var(--primary-light);
}

.top-controls-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
    gap: 1rem;
}

.search-wrapper {
    padding: 0.5rem 0;
    display: flex;
    justify-content: center;
}

.search-box {
    position: relative;
    width: 100%;
    max-width: 400px;
    min-width: 250px;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 0.75rem;
    color: var(--text-light);
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--background-primary);
    color: var(--text-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.search-input::placeholder {
    color: var(--text-light);
}

.leaderboard-container {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.table-container {
    overflow-x: auto;
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--background-primary);
}

.ranking-table th {
    background: var(--background-secondary);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem;
    text-align: left;
    border-bottom: 2px solid var(--border-medium);
    white-space: nowrap;
}

.ranking-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}

.table-row:hover {
    background: var(--background-accent);
}

.table-row.base-row {
    background-color: #f0f8ff;
}

.table-row.base-row:hover {
    background-color: #e6f2ff;
}

.table-row.instruct-row {
    background-color: #f0f8ff;
}

.table-row.instruct-row:hover {
    background-color: #e6f2ff;
}

/* 比较基准指示器样式 */
.baseline-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    font-size: 12px;
    box-shadow: 0 2px 4px rgba(30, 64, 175, 0.3);
    margin: 0 auto;
}

.baseline-indicator i {
    font-size: 10px;
}

/* 自定义工具提示样式 */
.baseline-indicator {
    position: relative;
}

.custom-tooltip {
    position: absolute;
    bottom: 100%;
    left: 100%;
    transform: translateX(10px);
    background-color: #1f2937;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.custom-tooltip::after {
    content: "";
    position: absolute;
    top: 50%;
    left: -4px;
    transform: translateY(-50%);
    border: 4px solid transparent;
    border-right-color: #1f2937;
}

.table tbody tr {
    transition: all 0.2s ease;
}

.ranking-table tbody tr {
    transition: all 0.2s ease;
}

.table tbody tr:hover {
    background: var(--blue-50);
}

.ranking-table tbody tr:hover {
    background-color: #f5f7fa !important;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.ranking-table tbody tr:last-child td {
    border-bottom: none;
}

.leaderboard-container .ranking-table th,
.leaderboard-container .ranking-table td {
    text-align: center;
}

.leaderboard-container .ranking-table th.name-col,
.leaderboard-container .ranking-table td.name-col {
    text-align: left;
}

.rank-col {
    width: 80px;
    text-align: center;
}

.name-col {
    min-width: 200px;
    vertical-align: top;
}

.year-col {
    width: 80px;
    text-align: center;
    min-width: 60px;
}

.size-col {
    width: 90px;
    text-align: center;
    min-width: 60px;
}

.dataset-name-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 100%;
    overflow: hidden;
    word-break: break-all;
    text-overflow: ellipsis;
}

.dataset-name-with-tags {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.dataset-tags {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.tag-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--background-accent);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid var(--border-light);
}

.tag-icon.tag-general {
    background: #e3f2fd;
    color: #1976d2;
    border-color: #bbdefb;
}

.tag-icon.tag-math {
    background: #f3e5f5;
    color: #7b1fa2;
    border-color: #e1bee7;
}

.tag-icon.tag-code {
    background: #e8f5e8;
    color: #388e3c;
    border-color: #c8e6c9;
}

.tag-icon.tag-science {
    background: #fff3e0;
    color: #f57c00;
    border-color: #ffcc02;
}

.tag-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-sm);
}

.tag-icon i {
    font-size: 0.7rem;
}

.dataset-link {
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: underline dotted;
    word-break: break-all;
}
.dataset-link:hover {
    color: var(--accent-color);
    text-decoration: underline solid;
}

.dataset-affiliation {
    font-size: 0.92em;
    color: var(--text-secondary);
    margin-top: 2px;
    font-style: italic;
    line-height: 1.2;
    word-break: break-all;
}

.score-col {
    width: 100px;
    text-align: center;
    white-space: nowrap;
}

.rank-cell {
    font-weight: 700;
    color: var(--primary-blue);
    font-size: 1.125rem;
    text-align: center;
    width: 80px;
}

.rank-cell.rank-1 {
    color: #ffd700;
}

.rank-cell.rank-2 {
    color: #c0c0c0;
}

.rank-cell.rank-3 {
    color: #cd7f32;
}

.overall-score {
    font-weight: 700;
}

/* Rank Badge */
.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1rem;
    color: var(--background-primary);
    background: var(--text-light);
}

.rank-badge.rank-1 {
    background: #ffd700;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.rank-badge.rank-2 {
    background: #c0c0c0;
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(192, 192, 192, 0.4);
}

.rank-badge.rank-3 {
    background: #cd7f32;
    color: var(--background-primary);
    box-shadow: 0 4px 12px rgba(205, 127, 50, 0.4);
}

/* Dataset Name */
.dataset-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* 左对齐 */
    justify-content: flex-start; /* 顶部对齐 */
}

/* Domain Badge */
.domain-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.domain-general {
    background: #e0f2fe;
    color: #0277bd;
}

.domain-math {
    background: #f3e5f5;
    color: #7b1fa2;
}

.domain-code {
    background: #e8f5e8;
    color: #2e7d32;
}

.domain-reasoning {
    background: #fff3e0;
    color: #ef6c00;
}

.domain-unknown {
    background: var(--background-accent);
    color: var(--text-secondary);
}

.domain-badge.clickable {
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.domain-badge.clickable:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.domain-badge.clickable:active {
    transform: translateY(0);
}

.domain-badge.clickable::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.3);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.domain-badge.clickable:hover::after {
    opacity: 1;
}

.score-container {
    display: flex;
    flex-direction: column; /* Stack items vertically */
    align-items: flex-end; /* Align items (score and diff) to the right */
}

.score-diff {
    margin-left: 0; /* Removed original margin-left: 8px; */
    margin-top: 3px; /* Add space below the score value */
    font-size: 0.75em; /* Make font smaller, was 0.9em */
    padding: 2px 6px; /* Existing padding */
    border-radius: 4px; /* Existing border-radius */
    font-weight: bold; /* Existing font-weight */
}

.score-diff-positive {
    color: #28a745; /* 绿色表示提升 */
    background-color: rgba(40, 167, 69, 0.1); /* 淡绿色背景 */
}

.score-diff-negative {
    color: #dc3545; /* 红色表示下降 */
    background-color: rgba(220, 53, 69, 0.1); /* 淡红色背景 */
}

/* Loading and Error States */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.loading-spinner {
    text-align: center;
    color: var(--primary-color);
}

.loading-spinner i {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.error-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.error-message {
    text-align: center;
    color: var(--error-color);
    padding: 2rem;
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.error-message i {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--blue-200);
    border-top: 4px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
    text-align: center;
    color: var(--primary-blue);
}

.loading-spinner i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.loading-spinner p {
    font-size: 1.125rem;
    font-weight: 500;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: var(--gray-600);
    font-size: 1.125rem;
}

.error-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
}

.error-container {
    text-align: center;
    padding: 3rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--blue-100);
}

.error-message {
    text-align: center;
    color: #d32f2f;
    max-width: 400px;
    padding: 2rem;
}

.error-message i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.error-message p {
    font-size: 1.125rem;
}

.error-text {
    color: #d32f2f;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.error-icon {
    font-size: 3rem;
    color: #d32f2f;
    margin-bottom: 1rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--gray-500);
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--blue-100);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--gray-400);
}

/* 详细类型表格样式 */
.detailed-leaderboard-container {
    margin-top: 2rem;
}

.detailed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: linear-gradient(
        135deg,
        var(--primary-color),
        var(--primary-light)
    );
    border-radius: var(--radius-lg);
    color: white;
    box-shadow: var(--shadow-lg);
}

.detailed-title {
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
}

.detailed-title i {
    font-size: 1.5rem;
    opacity: 0.9;
}

.back-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.back-btn:active {
    transform: translateY(0);
}

.detailed-table {
    min-width: 100%;
}

.detailed-table th {
    font-size: 0.9rem;
    padding: 1rem 0.75rem;
    text-align: center;
    background: var(--background-accent);
    border-bottom: 2px solid var(--border-medium);
    position: sticky;
    top: 0;
    z-index: 10;
    white-space: nowrap;
}

.task-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    white-space: nowrap;
}

.task-name {
    font-weight: 600;
    color: var(--text-primary);
}

/* Column Highlighting */
.highlighted-col {
    /* This rule is less specific and might be overridden, kept for consistency if ever needed directly */
    background-color: #f5f7fa !important; /* Even lighter grey-blue */
    color: var(--text-primary) !important;
}

.ranking-table th.highlighted-col,
.ranking-table td.highlighted-col {
    background-color: #f5f7fa !important; /* Even lighter grey-blue */
    color: var(--text-primary) !important; /* Dark text for readability */
}

.ranking-table th.highlighted-col .sort-icon,
.ranking-table th.highlighted-col .task-name,
.ranking-table th.highlighted-col .metric-name {
    color: var(
        --text-primary
    ) !important; /* Ensure icons and text within header are also dark */
}

.ranking-table td.highlighted-col .score-value {
    color: var(
        --text-primary
    ) !important; /* Ensure score values in highlighted cells are dark */
    font-weight: bold; /* Keep bold for emphasis */
}

.detailed-table th small {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-top: 0.25rem;
}

.detailed-table td {
    padding: 1rem 0.75rem;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
    white-space: nowrap;
}

.detailed-table .name-col,
.detailed-table .name-col.sortable {
    text-align: left !important;
    vertical-align: middle !important;
    min-height: 50px;
    max-width: 200px;
    width: 200px;
    white-space: normal !important;
    word-break: break-all;
}

.dataset-name-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 100%;
    overflow: hidden;
    word-break: break-all;
    white-space: normal;
}

.detailed-table .domain-col {
    min-width: 100px;
    max-width: 150px;
    width: 150px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 排序功能样式 */
.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.sortable:hover {
    background-color: var(--background-accent);
}

.sort-icon {
    margin-left: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
    display: inline-block;
}

.sortable:hover .sort-icon {
    color: var(--primary);
}

.sort-icon.fas.fa-sort-up,
.sort-icon.fas.fa-sort-down {
    color: var(--primary);
}

/* 详细表格任务列排序样式 */
.detailed-table .task-header .task-name {
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    gap: 0.25rem;
    margin-bottom: 0.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.detailed-table .task-header .task-name .sort-icon {
    margin-left: 0.25rem;
    font-size: 0.7rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
    display: inline-block;
    flex-shrink: 0;
}

.detailed-table .sortable:hover .task-header .task-name .sort-icon {
    color: var(--primary-color);
}

.detailed-table .task-header .task-name .sort-icon.fas.fa-sort-up,
.detailed-table .task-header .task-name .sort-icon.fas.fa-sort-down {
    color: var(--primary-color);
}

/* 详细表格任务列指标名样式（更浅色、更小字体） */
.detailed-table .task-header .metric-name {
    font-size: 0.75em;
    color: var(--text-light);
    font-weight: 400;
    margin-top: 2px;
}

/* 响应式优化 */
@media (max-width: 1200px) {
    .detailed-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .detailed-table {
        font-size: 0.9rem;
    }

    .detailed-table th,
    .detailed-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 768px) {
    .detailed-header {
        padding: 1rem;
    }

    .detailed-title {
        font-size: 1.5rem;
    }

    .detailed-table {
        font-size: 0.8rem;
    }

    .detailed-table th,
    .detailed-table td {
        padding: 0.5rem 0.25rem;
    }

    .detailed-table th small {
        font-size: 0.7rem;
    }
}

/* 滚动条样式优化 */
.table-container::-webkit-scrollbar {
    height: 8px;
}

.table-container::-webkit-scrollbar-track {
    background: var(--background-secondary);
    border-radius: var(--radius-sm);
}

.table-container::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-sm);
}

.table-container::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

/* 动画效果 */
.table-row {
    transition: background-color 0.2s ease;
}

.switch-btn,
.filter-select,
.reset-btn,
.search-input {
    transition: all 0.3s ease;
}

.rank-badge {
    transition: transform 0.2s ease;
}

.rank-badge:hover {
    transform: scale(1.1);
}

/* 焦点样式优化 */
.switch-btn:focus,
.filter-select:focus,
.reset-btn:focus,
.search-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 领域标签筛选样式 */
.domain-tags-container,
.type-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

/* 领域标签样式 */
.domain-tag,
.type-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    background: var(--background-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    user-select: none;
}

.domain-tag i,
.type-tag i {
    margin-right: 8px;
    font-size: 0.9rem;
}

/* 领域标签悬停效果 */
.domain-tag:hover,
.type-tag:hover {
    background: var(--background-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 当前选中标签样式 */
.domain-tag.active,
.type-tag.active {
    background: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

/* 特定领域标签样式 */
CSS
/* Domain Badge */
.domain-badge {
    display: inline-block;
    padding: 8px 16px; /* 统一内边距，使其大小更固定 */
    border-radius: 4px; /* 稍微减少圆角，使其更规整 */
    font-size: 14px; /* 统一字体大小 */
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-width: 80px; /* 设置最小宽度，避免内容过少时标签过窄 */
    text-align: center; /* 文本居中 */
}

.domain-general {
    background: #f0f0f0; /* 极浅灰色，更明亮纯净 */
    color: #555555; /* 中等深度的灰色文字 */
}

.domain-math {
    background: #e3f2fd; /* 非常浅的纯蓝色 */
    color: #1a73e8; /* 亮眼的蓝色文字 */
}

.domain-code {
    background: #e8f5e9; /* 非常浅的纯绿色 */
    color: #34a853; /* 亮眼的绿色文字 */
}

/* 推理 - 沉稳棕/暖灰 */
.domain-reasoning {
    background: #f5f0e6; /* 极浅的米白色/暖灰 */
    color: #7b4f3a; /* 沉稳的暖棕色文字 */
}

.domain-tag-math:hover {
    background-color: rgba(123, 31, 162, 0.15);
}

.domain-tag-math.active {
    background-color: #7b1fa2;
    color: white;
    border-color: #7b1fa2;
}

.domain-tag-code {
    background-color: rgba(46, 125, 50, 0.1);
    color: #2e7d32;
    border-color: rgba(46, 125, 50, 0.3);
}

.domain-tag-code:hover {
    background-color: rgba(46, 125, 50, 0.15);
}

.domain-tag-code.active {
    background-color: #2e7d32;
    color: white;
    border-color: #2e7d32;
}

.domain-tag-reasoning {
    background-color: rgba(239, 108, 0, 0.1);
    color: #ef6c00;
    border-color: rgba(239, 108, 0, 0.3);
}

.domain-tag-reasoning:hover {
    background-color: rgba(239, 108, 0, 0.15);
}

.domain-tag-reasoning.active {
    background-color: #ef6c00;
    color: white;
    border-color: #ef6c00;
}

/* 类型标签样式 */
.filter-tag.type-tag-general {
    background-color: rgba(0, 119, 189, 0.08);
    color: #0277bd;
    border-color: rgba(0, 119, 189, 0.2);
}

.filter-tag.type-tag-general:hover {
    background-color: rgba(0, 119, 189, 0.15);
    border-color: rgba(0, 119, 189, 0.4);
}

.filter-tag.type-tag-general.active {
    background-color: #0277bd;
    color: white;
    border-color: #0277bd;
}

.filter-tag.type-tag-math {
    background-color: rgba(123, 31, 162, 0.08);
    color: #7b1fa2;
    border-color: rgba(123, 31, 162, 0.2);
}

.filter-tag.type-tag-math:hover {
    background-color: rgba(123, 31, 162, 0.15);
    border-color: rgba(123, 31, 162, 0.4);
}

.filter-tag.type-tag-math.active {
    background-color: #7b1fa2;
    color: white;
    border-color: #7b1fa2;
}

.filter-tag.type-tag-code {
    background-color: rgba(46, 125, 50, 0.08);
    color: #2e7d32;
    border-color: rgba(46, 125, 50, 0.2);
}

.filter-tag.type-tag-code:hover {
    background-color: rgba(46, 125, 50, 0.15);
    border-color: rgba(46, 125, 50, 0.4);
}

.filter-tag.type-tag-code.active {
    background-color: #2e7d32;
    color: white;
    border-color: #2e7d32;
}

.filter-tag.type-tag-reasoning {
    background-color: rgba(239, 108, 0, 0.08);
    color: #ef6c00;
    border-color: rgba(239, 108, 0, 0.2);
}

.filter-tag.type-tag-reasoning:hover {
    background-color: rgba(239, 108, 0, 0.15);
    border-color: rgba(239, 108, 0, 0.4);
}

.filter-tag.type-tag-reasoning.active {
    background-color: #ef6c00;
    color: white;
    border-color: #ef6c00;
}

/* 优化筛选区域整体布局 */
.filter-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
    padding: 16px;
    background: var(--background-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .top-controls-row {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        margin-top: 0.5rem;
    }

    .filter-tag {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }

    .filter-tags-row {
        gap: 0.5rem;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
        justify-content: flex-start;
    }

    .filter-tag-group:not(:first-child)::before {
        display: none;
    }

    .filter-tag i {
        font-size: 0.8rem;
    }

    .reset-btn {
        padding: 0.3rem 0.6rem;
        font-size: 0.7rem;
    }

    .controls-section {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .filter-tags-row {
        justify-content: flex-start;
        flex-wrap: nowrap;
        overflow-x: auto;
    }

    .filter-tag {
        flex-shrink: 0;
    }

    .search-wrapper {
        margin-top: 0.5rem;
    }

    .search-input {
        font-size: 0.9rem;
        padding: 0.6rem 1rem 0.6rem 2.2rem;
    }
}

/* 页脚样式 */
footer {
    background-color: var(--background-secondary);
    color: var(--text-primary);
    border-top: 1px solid var(--border-light);
    margin-top: 50px;
    padding: 40px 0 20px 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-links {
    text-align: center;
    margin-bottom: 30px;
}

.footer-links h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.links-container {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.links-container a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--background-primary);
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.links-container a:hover {
    color: var(--primary-color);
    border-color: var(--primary-light);
    background: var(--background-accent);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.links-container a i {
    font-size: 1rem;
    width: 16px;
}

.github-repo-link {
    position: relative;
}

.github-repo-link::after {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-left: 5px;
    font-style: italic;
}

.footer-copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.footer-copyright p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-light);
}

/* 订阅按钮样式 */
.subscribe-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: var(--background-primary);
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    margin-left: 16px;
    transition: all 0.2s;
}
.subscribe-btn i {
    font-size: 1.1em;
}
.subscribe-btn:hover {
    background: var(--primary-color);
    color: var(--background-primary);
    box-shadow: var(--shadow-md);
}

/* 订阅弹窗样式 */
.subscribe-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.25);
    align-items: center;
    justify-content: center;
}
.subscribe-modal.show {
    display: flex;
}
.subscribe-modal-content {
    background: var(--background-primary);
    padding: 2rem 2.5rem 1.5rem 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 320px;
    max-width: 90vw;
    text-align: center;
    position: relative;
}
.subscribe-modal-content h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}
.subscribe-modal-content input[type="email"] {
    width: 80%;
    padding: 0.7rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: 1rem;
    outline: none;
    transition: border 0.2s;
}
.subscribe-modal-content input[type="email"]:focus {
    border: 1.5px solid var(--primary-color);
}
.subscribe-modal-content button[type="submit"] {
    padding: 0.6rem 1.5rem;
    background: var(--primary-color);
    color: var(--background-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.subscribe-modal-content button[type="submit"]:hover {
    background: var(--primary-dark);
}
.close-modal {
    position: absolute;
    top: 12px;
    right: 18px;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.2s;
}
.close-modal:hover {
    color: var(--error-color);
}
.subscribe-success {
    color: var(--success-color);
    margin-top: 1rem;
    font-size: 1rem;
}
.subscribe-error {
    color: var(--error-color);
    margin-top: 1rem;
    font-size: 1rem;
}

/* 保证主榜单和详细榜单所有分数、diff、属性等都居中 */
.leaderboard-table th,
.leaderboard-table td {
    justify-content: center;
    align-items: center;
}

/* 让分数和diff垂直居中显示 */
.score-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* 数据集名字和属性居中 */
.dataset-name {
    display: flex;
    flex-direction: column;
    align-items: flex-start; /* 左对齐 */
    justify-content: flex-start; /* 顶部对齐 */
}

/* Header buttons unified styling */
.header .likebtn-wrapper {
    margin-left: 15px;
    margin-right: -5px; /* 使用负边距强制让subscribe按钮更靠近 */
    height: 30px;
    display: inline-flex;
    align-items: center;
}

.header .subscribe-btn {
    padding: 5px 12px;
    font-family: Verdana, sans-serif;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.2;
    color: #1039a2;
    background-color: #ffffff;
    border: 1.5px solid #1039a2;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    height: 30px;
    box-sizing: border-box;
    transition: all 0.2s ease-in-out;
}

.header .subscribe-btn:hover {
    background-color: #1039a2;
    color: #ffffff;
}

.header .subscribe-btn i.fas.fa-envelope {
    margin-right: 6px;
    font-size: 14px;
}

/* Title container to hold main title and rules link */
.title-container {
    display: flex;
    align-items: baseline; /* Align text baselines */
    gap: 1rem; /* Space between title and rules link */
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

/* Rules link styled as small text */
.rules-link-text {
    font-size: 0.875rem; /* Small text size */
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 400;
    transition: color 0.2s ease-in-out;
    white-space: nowrap; /* Prevent breaking */
}

/* Rules link styled as tab button */
.rules-link-tab {
    display: inline-flex;
    align-items: center;
    background: var(--background-primary);
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
    font-size: 1rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    margin-top: 2px; /* 向下微调 */
}
.rules-link-tab:hover,
.rules-link-tab:focus {
    background: #f0f3fa;
    color: #072058;
    text-decoration: none;
    cursor: pointer;
}

.rules-link-text:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Feedback Button Styles */
.feedback-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.feedback-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
    background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
}

.feedback-btn:active {
    transform: translateY(0);
}

.feedback-btn svg {
    flex-shrink: 0;
}

/* Responsive feedback button */
@media (max-width: 768px) {
    .feedback-container {
        bottom: 20px;
        right: 20px;
    }

    .feedback-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
}

.nav-item a.active,
.nav-home-link.active {
    background: linear-gradient(90deg, #1039a2 60%, #1a53c1 100%);
    color: #fff !important;
    font-weight: 800;
    box-shadow: 0 4px 16px rgba(16, 57, 162, 0.13);
    border-bottom: 3px solid #ffd600;
    letter-spacing: 1px;
    transform: scale(1.08);
    transition: all 0.18s cubic-bezier(0.4, 1.3, 0.6, 1);
}

.nav-home-link {
    color: #1039a2;
    text-decoration: none;
    transition: color 0.18s;
}

.nav-home-link:hover,
.nav-home-link:focus {
    color: #1a53c1;
    text-decoration: underline;
}

.hero-section {
    background: linear-gradient(90deg, #f0f4ff 0%, #eaf0fa 100%);
    padding: 48px 0 32px 0;
    border-radius: 0 0 18px 18px;
    margin-bottom: 32px;
    box-shadow: 0 2px 16px rgba(16, 57, 162, 0.04);
}
.hero-section .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 4px;
}
.hero-content {
    padding-right: 8px;
    margin-top: -30px;
}
.hero-title {
    font-size: 2.6rem;
    font-weight: 800;
    color: #1039a2;
    margin-bottom: 10px;
    letter-spacing: 1px;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
.hero-subtitle {
    font-size: 1.35rem;
    font-weight: 600;
    color: #1a53c1;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}
.hero-desc {
    font-size: 1.08rem;
    color: #333;
    margin-bottom: 0;
    line-height: 1.7;
}
.hero-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    margin-top: 18px;
}
.subscribe-btn {
    background: #1039a2;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 28px;
    font-size: 1.08rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.18s, box-shadow 0.18s;
    box-shadow: 0 2px 8px rgba(16, 57, 162, 0.08);
    margin-top: 0;
}
.subscribe-btn i {
    margin-right: 8px;
}
.subscribe-btn:hover,
.subscribe-btn:focus {
    background: #1a53c1;
}
@media (max-width: 900px) {
    .hero-section .row {
        flex-direction: column;
        gap: 32px;
    }
    .hero-content {
        padding-right: 0;
        text-align: center;
    }
    .col-lg-7,
    .col-lg-5 {
        width: 100%;
        max-width: 100%;
    }
}
.row.align-items-center {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.text-center {
    text-align: center;
}

/* --- FAB菜单样式优化 --- */
.fab-menu {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}
.fab-main {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #fff;
    border: none;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: background 0.2s;
}
.fab-main:hover {
    background: var(--primary-dark);
}
.fab-actions {
    display: flex;
    flex-direction: column-reverse;
    align-items: flex-end;
    gap: 1rem;
    padding-bottom: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px) scale(0.95);
    transition: opacity 0.25s, transform 0.25s;
}
.fab-menu:hover .fab-actions,
.fab-actions:focus-within {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}
.fab-action {
    position: relative;
    display: flex;
    align-items: center;
}
.fab-icon,
.fab-label-btn {
    min-width: 160px;
    height: 48px;
    border-radius: 24px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s, min-width 0.2s;
    padding: 0 18px;
    overflow: hidden;
    white-space: nowrap;
    text-decoration: none;
    outline: none;
}
.fab-icon {
    min-width: 48px;
    width: 48px;
    justify-content: center;
    padding: 0;
}
.fab-icon:hover,
.fab-label-btn:hover {
    background: var(--primary-dark);
}
.fab-label-btn {
    position: absolute;
    right: 0;
    top: 0;
    opacity: 0;
    pointer-events: none;
    z-index: 2;
    justify-content: flex-start;
    gap: 0.7rem;
}
.fab-action:hover .fab-label-btn {
    opacity: 1;
    pointer-events: auto;
    animation: fabLabelIn 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}
.fab-action .fab-icon {
    z-index: 3;
}
.fab-action:hover .fab-icon {
    opacity: 0;
}
@keyframes fabLabelIn {
    from {
        opacity: 0;
        transform: translateX(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}
@media (max-width: 768px) {
    .fab-menu {
        right: 1rem;
        bottom: 1rem;
    }
    .fab-main,
    .fab-icon,
    .fab-label-btn {
        width: 40px;
        min-width: 40px;
        height: 40px;
        border-radius: 20px;
        font-size: 1rem;
        padding: 0 10px;
    }
    .fab-label-btn {
        font-size: 0.92rem;
    }
}

/* Compare Section Styles */
.compare-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.compare-toggle-btn {
    background: none;
    border: none;
    color: #1e40af;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
}

.compare-toggle-btn:hover {
    color: #1d4ed8;
}

.compare-toggle-btn .icon-circle {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: #6b7280;
    transition: all 0.2s ease;
}

.compare-toggle-btn:hover .icon-circle {
    background: #1e40af;
    color: white;
}

.compare-toggle-btn.active .icon-circle {
    background: #dc2626;
    color: white;
}

.compare-selection {
    background: #f8fafc;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.compare-dropdown label {
    font-weight: 600;
    color: #374151;
    margin-bottom: 15px;
    display: block;
}

.compare-dataset-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    background: white;
}

.compare-dataset-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid #f3f4f6;
    cursor: pointer;
    transition: all 0.2s ease;
}

.compare-dataset-item:last-child {
    border-bottom: none;
}

.compare-dataset-item:hover {
    background: #f1f5f9;
}

.compare-dataset-item.selected {
    background: #dbeafe;
    border-left: 4px solid #1e40af;
}

.compare-dataset-item input[type="checkbox"] {
    margin: 0;
    width: 16px;
    height: 16px;
}

.compare-dataset-item .dataset-name {
    flex: 1;
    font-weight: 500;
    color: #111827;
}

.compare-dataset-item .dataset-domain {
    background: #e5e7eb;
    color: #374151;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.compare-actions {
    margin-top: 20px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.compare-update-btn {
    background: #059669;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.compare-update-btn:hover:not(:disabled) {
    background: #047857;
    transform: translateY(-1px);
}

.compare-update-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
}

.compare-clear-btn {
    background: #dc2626;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.compare-clear-btn:hover {
    background: #b91c1c;
    transform: translateY(-1px);
}
.back-btn {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    left: auto;
    top: auto;
    padding: 0.45rem 0.7rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.95rem;
    transition: all 0.3s ease, width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    overflow: hidden;
    white-space: nowrap;
}

/* --- News & Roadmap Section Styles --- */
.news-roadmap-section {
    max-width: 1400px;
    margin: 0 auto 2.5rem auto;
    padding: 2rem;
    background: none;
}
.news-roadmap-container {
    display: flex;
    gap: 2.5rem;
    /* max-width: 1100px; */
    /* margin: 0 auto; */
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    flex-wrap: wrap;
}
.news-block,
.roadmap-block {
    flex: 1 1 340px;
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.2rem 1.7rem 1.5rem 1.7rem;
    min-width: 320px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    border: 1.5px solid var(--border-light);
    transition: box-shadow 0.22s, transform 0.22s;
    position: relative;
}
.news-block:hover,
.roadmap-block:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px) scale(1.02);
    z-index: 2;
}
.news-title,
.roadmap-title {
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    border-bottom: 1.5px solid var(--border-light);
    padding-bottom: 0.7rem;
}
.news-list,
.roadmap-content {
    margin-top: 0.7rem;
}
.news-list li:not(:last-child) {
    border-bottom: 1px dashed var(--border-light);
    padding-bottom: 0.7rem;
    margin-bottom: 0.7rem;
}
.roadmap-short-term,
.roadmap-midlong-term {
    background: var(--background-accent);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
    margin-bottom: 0.7rem;
    box-shadow: 0 1px 4px rgba(30, 64, 175, 0.04);
}
.roadmap-label {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
@media (max-width: 900px) {
    .news-block,
    .roadmap-block {
        min-width: 0;
        padding: 1.2rem 1rem 1rem 1rem;
        border-radius: var(--radius-md);
    }
}

/* --- 导航栏主标题与Slogan美化 --- */
.nav-title-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    line-height: 1.1;
}
.nav-main-title {
    font-size: 1.08rem;
    font-weight: 800;
    margin: 0;
    padding: 0;
    background: linear-gradient(90deg, #1039a2 60%, #1a53c1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    letter-spacing: 0.03em;
    font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
.nav-slogan {
    font-size: 0.82rem;
    font-weight: 500;
    color: #2563eb;
    margin-top: 0.32rem;
    margin-left: 2px;
    margin-bottom: 0.5rem;
    letter-spacing: 0.01em;
    background: linear-gradient(90deg, #2563eb 60%, #1e40af 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    line-height: 1.1;
    white-space: nowrap;
}
@media (max-width: 600px) {
    .nav-main-title {
        font-size: 1rem;
    }
    .nav-slogan {
        font-size: 0.9rem;
        margin-bottom: 0.3rem;
    }
}

.hero-content h3 {
    margin-top: 0.7rem;
    margin-bottom: 1.2rem;
    font-size: 1.18rem;
    color: #1a53c1;
    font-weight: 600;
    letter-spacing: 0.01em;
}
.hero-content p {
    margin-bottom: 1.15em;
    margin-top: 0;
    font-size: 1.04rem;
    line-height: 1.8;
}
.hero-content p:last-child {
    margin-bottom: 0;
}

.hero-section .row.align-items-center {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 48px;
}
.col-lg-7 {
    flex: 0 0 55%;
    max-width: 55%;
}
.col-lg-5 {
    flex: 0 0 40%;
    max-width: 40%;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
@media (max-width: 900px) {
    .hero-section .row.align-items-center {
        flex-direction: column;
        gap: 32px;
    }
    .col-lg-7,
    .col-lg-5 {
        width: 100%;
        max-width: 100%;
    }
}
/* 右侧ul美化为卡片样式 */
.col-lg-5 ul {
    background: var(--background-accent);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(30, 64, 175, 0.06);
    padding: 1.1rem 1.1rem 1.1rem 2.1rem;
    margin: 0 auto;
    list-style: disc inside;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    border: 1px solid var(--border-light);
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
    text-align: left;
}
.col-lg-5 ul li {
    display: list-item;
    align-items: flex-start;
    gap: 0.6em;
    line-height: 1.7;
    padding-left: 0;
    text-align: left;
}

.hero-title-row {
    display: flex;
    align-items: center;
    gap: 1.1rem;
    margin-bottom: 0.2em;
}
.hero-title-row .subscribe-btn,
.hero-title-row a.subscribe-btn {
    margin: 0;
    padding: 0.45em 1.1em;
    font-size: 1.01rem;
    height: 40px;
    box-shadow: var(--shadow-sm);
    border-radius: 6px;
    white-space: nowrap;
    min-width: 150px;
    text-align: center;
    justify-content: center;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-sizing: border-box;
}
@media (max-width: 600px) {
    .hero-title-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    .hero-title-row .subscribe-btn,
    .hero-title-row a.subscribe-btn {
        width: 100%;
        margin-left: 0;
        min-width: auto;
    }
}

.news-list-card {
    background: var(--background-accent);
    border-radius: var(--radius-md);
    padding: 1rem 1.1rem;
    margin-bottom: 0.7rem;
    box-shadow: 0 1px 4px rgba(30, 64, 175, 0.04);
    border: none;
}
.news-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}
.news-list li:not(:last-child) {
    border-bottom: 1px dashed var(--border-light);
    padding-bottom: 0.7rem;
    margin-bottom: 0.7rem;
}

.nav-main-title .nav-home-link {
    text-decoration: none !important;
}

.hero-section .col-lg-5 ul {
    min-height: 340px;
    margin-top: 20px;
}

.hero-section .col-lg-5 {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
}
.hero-section .col-lg-5 ul {
    align-self: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Comparison Cards Styles */
.comparison-cards {
    margin-bottom: 32px;
}
.comparison-card {
    background: #fff;
    border: 1.5px solid #e5e7eb;
    border-radius: 12px;
    margin-bottom: 18px;
    box-shadow: 0 2px 8px 0 rgba(30, 64, 175, 0.04);
    transition: box-shadow 0.2s;
    overflow: hidden;
}
.comparison-card:hover {
    box-shadow: 0 4px 16px 0 rgba(30, 64, 175, 0.1);
}
.comparison-card-header,
.comparison-card-header.compact-header {
    padding: 0px 10px 30px 20px;
    min-height: 24px;
    font-size: 0.97rem;
    height: 24px;
}
.comparison-card-header:hover {
    background: #e0e7ef;
}
.comparison-card-title {
    font-size: 1.18rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}
.comparison-card-tags {
    display: flex;
    gap: 6px;
}
.comparison-card-body {
    padding: 18px 24px 4px 24px;
    background: #fff;
    animation: fadeIn 0.2s;
}
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.comparison-card-body .dataset-affiliation {
    color: #fff !important;
}

.comparison-card-header .external-link {
    padding: 4px 10px;
    font-size: 0.92rem;
    border-radius: 6px;
    height: 24px;
    min-height: 0;
    line-height: 1.1;
    display: flex;
    align-items: center;
}