/* 关于我们页面专用样式 */

/* 导航栏激活状态 */
.nav-menu a.active {
    color: var(--accent-color);
    position: relative;
}

.nav-menu a.active::after {
    width: 100%;
}

/* 页面头部样式 */
.about-hero {
    padding: 120px 0 80px;
    background: var(--gradient-blue);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 210, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.about-hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
}

.about-hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.about-hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.about-hero-divider {
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 0 auto;
    border-radius: 2px;
}

/* 公司介绍样式 */
.company-intro {
    padding: 100px 0;
    background: var(--primary-color);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-icon {
    margin-bottom: 2rem;
}

.icon-circle {
    width: 80px;
    height: 80px;
    background: rgba(0, 210, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 2px solid rgba(0, 210, 255, 0.2);
}

.icon-text {
    font-size: var(--icon-size-lg);
    color: var(--icon-color-primary);
    transition: var(--icon-transition);
    filter: drop-shadow(var(--icon-glow));
}

.icon-text:hover {
    filter: drop-shadow(var(--icon-glow-hover));
    transform: scale(1.1);
}

.intro-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

.intro-text {
    text-align: left;
    margin-bottom: 4rem;
}

.intro-main {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-weight: 500;
}

.intro-detail {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    line-height: 1.8;
}

/* 数据统计卡片 */
.company-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 210, 255, 0.15);
    border-color: rgba(0, 210, 255, 0.3);
}

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

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 使命愿景样式 */
.mission-vision-section {
    padding: 100px 0;
    background: var(--secondary-color);
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.mission-card, .vision-card {
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    transition: var(--transition);
}

.mission-card:hover, .vision-card:hover {
    /* 悬停效果已合并到 .glass-card 中 */
}

.card-icon {
    font-size: var(--icon-size-xxl);
    color: var(--icon-color-primary);
    margin-bottom: 1.5rem;
    display: block;
    transition: var(--icon-transition);
    filter: drop-shadow(var(--icon-glow));
}

.card-icon:hover {
    filter: drop-shadow(var(--icon-glow-hover));
    transform: scale(1.1);
}

.mission-card h3, .vision-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.mission-card p, .vision-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 发展历程样式 */
.growth-history {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
}

.growth-history::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 210, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 210, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.history-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 2;
}

.history-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.history-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 400;
}

/* 科技时间轴容器 */
.tech-timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 时间轴主线 */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, 
        rgba(0, 210, 255, 0.2) 0%, 
        rgba(0, 210, 255, 0.8) 50%, 
        rgba(0, 210, 255, 0.2) 100%);
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.3);
}

.timeline-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, 
        var(--accent-color) 0%, 
        rgba(0, 255, 255, 0.8) 100%);
    border-radius: 2px;
    transition: height 2s ease-out;
    box-shadow: 0 0 30px rgba(0, 210, 255, 0.6);
}

/* 里程碑节点 */
.timeline-milestone {
    position: relative;
    margin-bottom: 80px;
    display: flex;
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline-milestone.animate {
    opacity: 1;
    transform: translateY(0);
}

.timeline-milestone.left {
    justify-content: flex-end;
    padding-right: calc(50% + 40px);
}

.timeline-milestone.right {
    justify-content: flex-start;
    padding-left: calc(50% + 40px);
}

/* 里程碑标记 */
.milestone-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    z-index: 3;
}

.marker-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 3px solid rgba(0, 210, 255, 0.3);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
}

.marker-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-color), rgba(0, 255, 255, 0.8));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 0 20px rgba(0, 210, 255, 0.5),
        inset 0 2px 10px rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.milestone-marker:hover .marker-core {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 
        0 0 30px rgba(0, 210, 255, 0.8),
        inset 0 2px 15px rgba(255, 255, 255, 0.3);
}

.milestone-icon {
    font-size: var(--icon-size-sm);
    color: var(--icon-color-primary);
    filter: drop-shadow(var(--icon-glow));
    transition: var(--icon-transition);
}

.milestone-icon:hover {
    filter: drop-shadow(var(--icon-glow-hover));
    transform: scale(1.1);
}

.marker-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
    opacity: 0.6;
}

/* 里程碑内容 */
.milestone-content {
    border-radius: 20px;
    padding: 2rem;
    max-width: 450px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.milestone-date {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.milestone-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.milestone-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* 统计数据 */
.milestone-stats {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem;
    background: rgba(0, 210, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(0, 210, 255, 0.2);
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

/* 成就徽章 */
.milestone-achievements {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.achievement-badge {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.8rem;
    background: rgba(0, 210, 255, 0.15);
    border-radius: 20px;
    border: 1px solid rgba(0, 210, 255, 0.3);
    font-size: 0.8rem;
    color: var(--text-primary);
}

.badge-icon {
    font-size: var(--icon-size-xs);
    color: var(--icon-color-primary);
    transition: var(--icon-transition);
}

/* 技术栈标签 */
.tech-stack {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.tech-item {
    padding: 0.4rem 0.8rem;
    background: linear-gradient(135deg, rgba(0, 210, 255, 0.2), rgba(0, 255, 255, 0.1));
    border-radius: 15px;
    border: 1px solid rgba(0, 210, 255, 0.3);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 未来规划 */
.timeline-milestone.future .milestone-content {
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.1), rgba(0, 210, 255, 0.05));
    border-color: rgba(138, 43, 226, 0.3);
}

.timeline-milestone.future .marker-core {
    background: linear-gradient(135deg, #8a2be2, var(--accent-color));
}

.timeline-milestone.future .milestone-date {
    color: #8a2be2;
}

.future-goals {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.goal-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(138, 43, 226, 0.1);
    border-radius: 20px;
    border: 1px solid rgba(138, 43, 226, 0.3);
    font-size: 0.9rem;
    color: var(--text-primary);
}

.goal-icon {
    font-size: var(--icon-size-sm);
    color: var(--icon-color-future);
    transition: var(--icon-transition);
    filter: drop-shadow(0 0 8px rgba(138, 43, 226, 0.4));
}

/* 动画效果 */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.3;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-hero {
        padding: 100px 0 60px;
    }
    
    .about-hero-title {
        font-size: 2.2rem;
    }
    
    .about-hero-subtitle {
        font-size: 1.1rem;
    }
    
    .company-intro, .mission-vision-section, .growth-history, .core-values, .contact-cta {
        padding: 60px 0;
    }
    
    .intro-title, .history-title, .values-title {
        font-size: 2rem;
    }
    
    .intro-main {
        font-size: 1.1rem;
    }
    
    .intro-detail {
        font-size: 1rem;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .mission-card, .vision-card {
        padding: 2rem;
    }
    
    .tech-timeline {
        padding: 0 1rem;
    }
    
    .timeline-line {
        left: 2rem;
    }
    
    .timeline-milestone {
        padding-left: 4rem !important;
        padding-right: 0 !important;
        justify-content: flex-start !important;
    }
    
    .milestone-marker {
        left: 2rem;
    }
    
    .milestone-content {
        max-width: 100%;
    }
    
    .history-title {
        font-size: 2rem;
    }
    
    .milestone-title {
        font-size: 1.2rem;
    }
    
    .future-goals, .milestone-achievements {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .about-hero-title {
        font-size: 1.8rem;
    }
    
    .intro-title, .history-title, .values-title {
        font-size: 1.8rem;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .mission-card, .vision-card, .value-item {
        padding: 1.5rem;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .icon-circle {
        width: 60px;
        height: 60px;
    }
    
    .icon-text {
        font-size: var(--icon-size-md);
    }
}

/* 高对比度模式适配 */
@media (prefers-contrast: high) {
    .stat-card, .mission-card, .vision-card, .timeline-content, .value-item {
        border: 2px solid var(--accent-color);
    }
    
    .timeline::before {
        background: var(--accent-color);
    }
    
    .timeline-marker {
        box-shadow: 0 0 0 4px var(--accent-color);
    }
    
    .qr-code {
        border: 2px solid var(--accent-color);
    }
    
    .nav-group h4::after, .qr-section h4::after {
        background: var(--accent-color);
    }
}

/* 减少动画效果适配 */
@media (prefers-reduced-motion: reduce) {
    .stat-card, .mission-card, .vision-card, .timeline-content, .value-item {
        transition: none;
    }
    
    .stat-card:hover, .mission-card:hover, .vision-card:hover, 
    .timeline-content:hover, .value-item:hover {
        transform: none;
    }
    
    .nav-group a {
        transition: none;
    }
    
    .nav-group a:hover {
        transform: none;
    }
}

/* 核心价值观样式 */
.core-values {
    padding: 100px 0;
    background: var(--secondary-color);
}

.values-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1920px;
    margin: 0 auto;
}

.value-item {
    border-radius: 16px;
    padding: 2.5rem;
    text-align: center;
    transition: var(--transition);
}

.value-item:hover {
    /* 悬停效果已合并到 .glass-card 中 */
}

.value-icon {
    font-size: var(--icon-size-xl);
    color: var(--icon-color-primary);
    margin-bottom: 1.5rem;
    display: block;
    transition: var(--icon-transition);
    filter: drop-shadow(var(--icon-glow));
}

.value-icon:hover {
    filter: drop-shadow(var(--icon-glow-hover));
    transform: scale(1.1);
}

.value-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.value-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}