/* --- Lab 工坊模块 --- */
.lab {
    padding: 120px 32px;
    position: relative;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-light);
}

.lab-container {
    max-width: 1152px;
    margin: 0 auto;
}

.lab-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

@media (min-width: 768px) {
    .lab-grid { grid-template-columns: repeat(2, 1fr); }
}

.lab-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    padding: 40px;
    background: var(--surface-overlay);
    transition: all 0.5s ease;
    cursor: pointer;
    min-height: 320px;
}

.lab-card:hover {
    border-color: var(--ink-faint);
    background: var(--surface-overlay-hover);
    transform: translateY(-4px);
}

.lab-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}

.lab-card-headline {
    min-width: 0;
}

.lab-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink-pale);
    border: 1px solid var(--border-color);
    transition: all 0.5s ease;
    flex-shrink: 0;
}

.lab-card:hover .lab-card-icon {
    color: var(--ink-heavy);
    border-color: var(--ink-heavy);
}

.lab-card-title {
    font-family: var(--font-brush);
    font-size: 28px;
    letter-spacing: 0.15em;
    color: var(--ink-dark);
    margin-bottom: 4px;
}

.lab-card-label {
    display: block;
    font-size: 10px;
    color: var(--ink-pale);
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-weight: bold;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.lab-card-status {
    align-self: flex-start;
    margin-bottom: 22px;
    padding: 2px 10px;
    border: 1px solid var(--accent-seal-soft);
    color: var(--accent-seal);
    font-size: 10px;
    letter-spacing: 0.18em;
    font-family: var(--font-serif);
    line-height: 1.7;
}

.lab-card-desc {
    font-family: var(--font-serif);
    font-size: 15px;
    color: var(--ink-medium);
    line-height: 1.8;
    margin-bottom: 32px;
    flex: 1;
}

.lab-card-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.lab-card-link,
.lab-card-note {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--ink-dark);
    font-weight: bold;
    transition: all 0.5s ease;
}

.lab-card-note {
    color: var(--ink-pale);
    font-weight: normal;
    letter-spacing: 0.12em;
}

.lab-card:hover .lab-card-link {
    color: var(--ink-heavy);
    letter-spacing: 0.3em;
}

.search-icon {
    cursor: pointer;
    margin-left: 16px;
    transition: color 0.3s ease;
}
.search-icon:hover { color: var(--ink-heavy); }

/* --- Tools strip / 工具入口（弱化版） --- */
.tools {
    padding: 80px 32px 90px;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-light);
}
.tools-container {
    max-width: 1024px;
    margin: 0 auto;
}
.tools-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 36px;
    font-family: var(--font-serif);
}
.tools-head h2 {
    font-family: var(--font-brush);
    font-size: 24px;
    letter-spacing: 0.18em;
    font-weight: 400;
    color: var(--ink-dark);
    margin: 0;
}
.tools-head .tools-en {
    font-size: 10px;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--ink-pale);
}

.tools-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}
@media (min-width: 720px) {
    .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
}

.tool-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 24px;
    border: 1px solid var(--border-color);
    background: var(--surface-overlay);
    color: inherit;
    text-decoration: none;
    transition: border-color 0.4s ease, background 0.4s ease, transform 0.4s ease;
    min-width: 0;
}
.tool-card:hover {
    border-color: var(--ink-faint);
    background: var(--surface-overlay-hover);
    transform: translateY(-2px);
}
.tool-card-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.tool-card-title {
    font-family: var(--font-brush);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.12em;
    color: var(--ink-dark);
    line-height: 1.3;
}

.tool-card-title--latin {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 21px;
    font-style: italic;
    font-weight: 500;
    letter-spacing: 0.03em;
}
.tool-card-desc {
    font-family: var(--font-serif);
    font-size: 13px;
    color: var(--ink-light);
    line-height: 1.6;
    overflow-wrap: anywhere;
}
.tool-card-arrow {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--ink-pale);
    transition: color 0.4s ease, border-color 0.4s ease;
}
.tool-card:hover .tool-card-arrow {
    color: var(--ink-heavy);
    border-color: var(--ink-heavy);
}

@media (max-width: 767px) {
    .lab {
        padding-left: 24px;
        padding-right: 24px;
        padding-top: 84px;
        padding-bottom: 84px;
    }

    .lab-card {
        padding: 30px 24px;
        min-height: 0;
    }

    .lab-card-header {
        align-items: flex-start;
        gap: 16px;
    }

    .lab-card-title {
        font-size: 25px;
    }

    .lab-card-actions {
        align-items: flex-start;
    }

    .tools {
        padding-left: 24px;
        padding-right: 24px;
        padding-top: 64px;
        padding-bottom: 72px;
    }
}