/* 页面标题 */
.page-header {
    padding: 60px 0 40px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    margin-bottom: 40px;
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.9);
}

/* 赞助商页面样式 */
.sponsors-content {
    padding: 40px 0 80px;
}

.sponsor-intro {
    text-align: center;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.sponsor-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text);
}

.sponsor-level {
    margin-bottom: 60px;
}

.level-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.level-title {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 10px;
    display: inline-block;
    padding: 0 20px;
    background-color: var(--white);
    position: relative;
    z-index: 2;
}

.level-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 10px;
}

.level-header::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-light);
    z-index: 1;
}

.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.sponsor-grid a {
    text-decoration: none;
    color: inherit;
}

.sponsor-card {
    background: var(--white);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.sponsor-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.sponsor-logo {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.sponsor-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.sponsor-logo i {
    font-size: 4rem;
    color: var(--primary-light);
}

.sponsor-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
}

.sponsor-desc {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* 赞助商等级样式调整 */
.sponsored-by .sponsor-card {
    border-top: 5px solid #d4af37;
    /* 金色 */
}

.co-sponsored-by .sponsor-card {
    border-top: 5px solid #c0c0c0;
    /* 银色 */
}

.technically-co-sponsored-by .sponsor-card {
    border-top: 5px solid #cd7f32;
    /* 青铜色 */
}

/* 赞助号召部分 */
.become-sponsor {
    background-color: var(--primary);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
    border-radius: 10px;
    margin-top: 40px;
}

.become-sponsor h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.become-sponsor p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 30px;
    line-height: 1.7;
}

.btn-light {
    background-color: var(--white);
    color: var(--primary);
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
}

.btn-light:hover {
    background-color: var(--light);
    transform: translateY(-2px);
}