/* ========== 关于我们独立样式 ========== */
.about-banner {
    background: linear-gradient(rgba(10,37,64,0.8), rgba(10,37,64,0.8)), url('/template/zizhi/images/5.png') center/cover;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 76px;
}
@media (max-width:992px) {
    .about-banner { margin-top: 0; }
}
.about-banner h2 {
    font-size: 3.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    animation: bannerGlow 2s infinite alternate;
}
.about-banner p {
    font-size: 1.3rem;
    opacity: 0.9;
}
@keyframes bannerGlow {
    0% { text-shadow: 0 0 10px rgba(198,164,63,0.2); }
    100% { text-shadow: 0 0 25px rgba(198,164,63,0.6); }
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 20px;
}
.mission-card {
    background: #F9FAFD;
    border-radius: 30px;
    padding: 40px 30px;
    text-align: center;
    transition: 0.4s;
    border: 1px solid #eef2f6;
}
.mission-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 30px -10px rgba(10,37,64,0.15);
    border-color: #C6A43F;
}
.mission-card i {
    font-size: 3rem;
    color: #C6A43F;
    margin-bottom: 24px;
}
.mission-card h3 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}
.mission-card p {
    color: #4e5e73;
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 40px auto;
}
.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: #C6A43F;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
}
.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    animation: fadeInLeft 1s;
}
.timeline-item:nth-child(odd) {
    left: 0;
}
.timeline-item:nth-child(even) {
    left: 50%;
}
.timeline-item .timeline-content {
    padding: 24px 28px;
    background: white;
    border-radius: 24px;
    box-shadow: 0 15px 30px -8px rgba(0,0,0,0.1);
    border: 1px solid #f0f3f7;
    transition: 0.3s;
}
.timeline-item .timeline-content:hover {
    box-shadow: 0 25px 40px -8px rgba(198,164,63,0.2);
    border-color: #C6A43F;
}
.timeline-item .timeline-year {
    display: inline-block;
    background: #0A2540;
    color: white;
    padding: 6px 20px;
    border-radius: 40px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}
.timeline-item:nth-child(odd) .timeline-year {
    background: #C6A43F;
    color: #0A2540;
}
.timeline-item::before {
    content: '';
    position: absolute;
    width: 24px;
    height: 24px;
    background: white;
    border: 4px solid #C6A43F;
    border-radius: 50%;
    top: 28px;
    right: -12px;
    z-index: 2;
}
.timeline-item:nth-child(even)::before {
    left: -12px;
    right: auto;
}
@media (max-width: 768px) {
    .timeline::after { left: 20px; }
    .timeline-item { width: 100%; padding-left: 70px; padding-right: 20px; }
    .timeline-item:nth-child(odd), .timeline-item:nth-child(even) { left: 0; }
    .timeline-item::before { left: 8px !important; right: auto; }
}
@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.structure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.structure-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 10px 25px -12px rgba(0,0,0,0.08);
    border: 1px solid #eef2f6;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}
.structure-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: #C6A43F;
    transform: scaleY(0);
    transition: transform 0.3s;
    transform-origin: top;
}
.structure-card:hover::after {
    transform: scaleY(1);
}
.structure-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 30px -12px rgba(10,37,64,0.15);
}
.structure-icon {
    font-size: 2.4rem;
    color: #C6A43F;
    margin-bottom: 20px;
}
.structure-card h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.resource-item {
    background: #F9FAFD;
    border-radius: 32px;
    padding: 40px 20px;
}
.resource-item i {
    font-size: 3rem;
    color: #C6A43F;
    margin-bottom: 20px;
}
.resource-item h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}
.resource-item p {
    color: #5f6c80;
}
@media (max-width: 992px) {
    .resource-grid { grid-template-columns: repeat(2, 1fr); }
    .mission-grid { grid-template-columns: 1fr; }
}

.future-card {
    background: linear-gradient(145deg, #0A2540, #1F3A5F);
    color: white;
    border-radius: 60px;
    padding: 60px;
    text-align: center;
    margin-top: 40px;
}
.future-card h3 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}
.future-card p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}
.future-card i {
    color: #C6A43F;
    margin-right: 8px;
}

.quality-steps {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin: 40px 0;
}
.quality-step {
    background: white;
    border-radius: 48px;
    padding: 30px 40px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.02);
    border: 1px solid #eef2f6;
    min-width: 200px;
    animation: softGlow 4s infinite;
}
.quality-step:nth-child(2) { animation-delay: 1s; }
.quality-step:nth-child(3) { animation-delay: 2s; }
@keyframes softGlow {
    0% { background: white; }
    50% { background: #fcf8ed; box-shadow: 0 8px 25px rgba(198,164,63,0.1); }
}