/* 基础样式重置 */
html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background: #ffffff;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
}

/* CSS变量定义 */
:root {
    --primary-color: #42b983;
    --secondary-color: #35495e;
    --accent-color: #4e54c8;
    --text-color: #2c3e50;
    --border-color: #e9ecef;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --transition-timing: 0.3s ease;
}

/* 导航栏样式 */
.navbar {
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.8rem 1rem;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

/* 公告栏样式 */
.announcement-banner {
    background: linear-gradient(135deg, var(--accent-color), #8f94fb);
    color: white;
    padding: 0.75rem 0;
    text-align: center;
    box-shadow: 0 2px 10px var(--shadow-color);
    margin: 0;
}

.logo { 
    width: 36px; 
    height: 36px; 
}

.navbar-brand {
    display: flex;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 500;
    color: #333;
}

.nav-link { 
    color: #333 !important;
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.nav-link:hover {
    color: #42b983 !important;
}

.btn-outline { 
    border: 1px solid #42b983; 
    color: #42b983; 
    background: #fff;
    border-radius: 4px;
    padding: 0.375rem 1rem;
    transition: all 0.3s;
}

.btn-outline:hover { 
    background: #42b983;
    color: white;
}

.btn-primary {
    background: #42b983;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 0.6rem 2rem;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: #3aa876;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(66, 185, 131, 0.2);
}

.btn-secondary {
    background: #f1f1f1;
    color: #333;
    border: none;
    border-radius: 4px;
    padding: 0.6rem 2rem;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: #e5e5e5;
}

.card {
    background: white;
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-header {
    font-weight: 600;
    background: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.card-body {
    padding: 1.5rem;
}

.main-title {
    font-size: 3.5rem;
    font-weight: 600;
    color: #42b983;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.feature-icon {
    font-size: 1.5rem;
    color: #42b983;
    margin-bottom: 1rem;
}

/* 波纹效果 */
.btn {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* 更新日志样式 */
.log-title {
    font-weight: 500;
}

.log-icon {
    cursor: pointer;
    color: #6c757d;
    transition: transform 0.2s ease, color 0.2s ease;
    font-size: 0.9rem;
}

.log-icon:hover {
    color: #42b983;
}

.log-details {
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: 0;
}

.log-details:not(.d-none) {
    margin-top: 12px !important;
}

.log-details pre {
    margin-bottom: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    background-color: #f8f9fa;
    border-radius: 6px;
    padding: 12px 16px;
    border-left: 3px solid #42b983;
    color: #555;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.log-toggle-all {
    transition: all 0.3s ease;
}

.log-toggle-all:hover {
    background-color: #42b983;
    color: white;
    border-color: #42b983;
}

/* 历史版本样式 */
#historyVersionsContainer {
    transition: opacity 0.3s ease;
}

#historyVersions {
    border-top: 1px dashed #e0e0e0;
    padding-top: 1rem;
    margin-top: 0;
}

#historyVersions .badge {
    opacity: 0.8;
}

/* 收起历史版本后减少留白 */
#historyVersionsContainer:not(:visible) + .mt-3,
#historyVersionsContainer:not(:visible) ~ .mt-3 {
    margin-top: 0 !important;
}

.list-group-item {
    padding: 0.75rem 1.25rem;
    transition: padding 0.3s ease;
}

.list-group-item:has(.log-details:not(.d-none)) {
    padding-bottom: 1rem;
}

/* 页脚样式 */
footer {
    background-color: #fff !important;
    box-shadow: 0 -1px 4px rgba(0, 0, 0, 0.05);
}

footer h4, footer h5 {
    font-weight: 600;
}

footer .text-primary {
    color: #42b983 !important;
}

footer .text-muted {
    color: #6c757d !important;
}

footer a.text-muted:hover {
    color: #42b983 !important;
    text-decoration: none;
}

footer hr {
    opacity: 0.1;
    margin: 1.5rem 0;
}

footer .alert-secondary {
    background-color: #f8f9fa;
    border-color: #eaeaea;
    color: #6c757d;
}

/* 响应式调整 */
@media (max-width: 767.98px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    footer .alert-secondary {
        margin-top: 1rem;
    }
    
    footer .d-flex {
        flex-direction: column;
    }
}

/* 基础样式优化 */
:root {
    --primary-color: #42b983;
    --secondary-color: #35495e;
    --accent-color: #4e54c8;
    --text-color: #2c3e50;
    --border-color: #e9ecef;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --transition-timing: 0.3s ease;
}

/* 性能优化：使用CSS变量和will-change */
.card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: transform var(--transition-timing),
                box-shadow var(--transition-timing);
    will-change: transform, box-shadow;
    transform: translateZ(0);
}

/* 使用CSS类控制动画，避免直接操作style */
.card-visible {
    opacity: 1;
    transform: translateY(0);
}

.card:not(.card-visible) {
    opacity: 0;
    transform: translateY(20px);
}

/* 优化卡片悬停效果 */
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px var(--shadow-color);
}

/* 3D卡片效果优化 */
.card-3d {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.card-3d-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: box-shadow var(--transition-timing);
    box-shadow: 0 8px 24px 0 rgba(80, 80, 160, 0.13),
                0 1.5px 6px 0 rgba(0, 0, 0, 0.07);
}

/* 按钮波纹效果优化 */
.btn {
    position: relative;
    overflow: hidden;
    transform: translate3d(0, 0, 0);
}

.ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple 0.6s linear;
    background-color: rgba(255, 255, 255, 0.7);
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* 优化更新日志展开/收起动画 */
.log-details {
    overflow: hidden;
    transition: max-height var(--transition-timing);
}

/* 历史版本列表优化 */
#historyVersionsContainer {
    opacity: 0;
    transition: opacity var(--transition-timing);
}

/* 导航栏优化 */
.navbar {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid var(--border-color);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* 打印样式优化 */
@media print {
    .card {
        break-inside: avoid;
        box-shadow: none !important;
    }
    
    .btn,
    .navbar {
        display: none !important;
    }
}