.fleet-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 60px;
}

.fleet-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: center;
    max-width: 1200px;
    width: 100%;
}

.fleet-card {
    flex: 1 1 300px;
    max-width: 350px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: 0.3s;
    cursor: pointer;
    text-decoration: none;
    color: white;
    display: block;
}

.fleet-card:hover {
    transform: translateY(-6px);
}

/* 科研与管理舰队 */
.fleet-card--research:hover {
    background: rgba(61, 174, 255, 0.10);
    border-color: #3DAEFF;
}

/* 工业与收集舰队 */
.fleet-card--industry:hover {
    background: rgba(219, 164, 0, 0.10);
    border-color: #DBA400;
}

/* 主防御舰队 */
.fleet-card--defense:hover {
    background: rgba(224, 84, 76, 0.10);
    border-color: #E0544C;
}

.fleet-card h2 {
    font-size: 22px;
    letter-spacing: 4px;
    margin-bottom: 8px;
}

.fleet-card .english {
    font-size: 14px;
    opacity: 0.6;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.fleet-card .desc {
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.6;
}