/* ===== Changelog 页面样式 ===== */

.changelog-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.changelog-page h2 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--card-border);
}

/* ===== 版本规划时间线 ===== */

.roadmap-section {
    margin-bottom: 3rem;
}

.roadmap-timeline {
    position: relative;
    padding-left: 2rem;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--card-border);
}

.roadmap-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.roadmap-dot {
    position: absolute;
    left: -2rem;
    top: 1.2rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 3px solid var(--primary);
    background: var(--bg-primary);
    z-index: 1;
}

.roadmap-item.planned .roadmap-dot {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.roadmap-item.completed .roadmap-dot {
    border-color: #22c55e;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.roadmap-item.future .roadmap-dot {
    border-color: var(--text-muted);
}

.roadmap-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: transform 0.2s;
}

.roadmap-card:hover {
    transform: translateX(4px);
}

.roadmap-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.roadmap-version {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary-light);
    font-family: monospace;
}

.roadmap-status {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-weight: 600;
}

.roadmap-status.planned {
    background: rgba(59, 130, 246, 0.15);
    color: #3b82f6;
}

.roadmap-status.future {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
}

.roadmap-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.roadmap-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.roadmap-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.roadmap-features li {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 999px;
    color: var(--text-secondary);
}

/* ===== 版本号规则 ===== */

.version-scheme {
    margin-bottom: 3rem;
}

.scheme-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.scheme-format {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    font-weight: 700;
    font-family: monospace;
}

.scheme-dot {
    color: var(--text-muted);
}

.scheme-num.major { color: #ef4444; }
.scheme-num.minor { color: #f59e0b; }
.scheme-num.patch { color: #22c55e; }

.scheme-labels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.scheme-label {
    text-align: center;
}

.scheme-label .scheme-num {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.scheme-label span:last-child {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* ===== 更新日志 ===== */

.changelog-section {
    margin-bottom: 2rem;
}

.version-block {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--card-border);
    background: var(--bg-secondary);
}

.version-title-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.version-number {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-light);
    font-family: monospace;
}

.version-tag {
    font-size: 0.65rem;
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    color: white;
    font-weight: 700;
    text-transform: uppercase;
}

.version-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.version-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: monospace;
}

.version-changes {
    padding: 1rem 1.25rem;
}

.change-group {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    align-items: flex-start;
}

.change-group:last-child {
    margin-bottom: 0;
}

.change-type {
    flex-shrink: 0;
    font-size: 0.7rem;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    color: white;
    font-weight: 700;
    margin-top: 0.2rem;
}

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

.change-list li {
    font-size: 0.85rem;
    color: var(--text-primary);
    line-height: 1.8;
    padding-left: 1rem;
    position: relative;
}

.change-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

/* ===== 响应式 ===== */

@media (max-width: 640px) {
    .changelog-page {
        padding: 1rem 0.5rem;
    }

    .scheme-labels {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .scheme-format {
        font-size: 1.5rem;
    }

    .version-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .version-title-row {
        flex-wrap: wrap;
    }

    .change-group {
        flex-direction: column;
        gap: 0.25rem;
    }

    .roadmap-features {
        gap: 0.35rem;
    }
}