/* ===== 合作单位页面专属样式 ===== */

/* 面包屑 */
.partner-breadcrumb {
    background: var(--c-bg-alt);
    border-bottom: 1px solid var(--c-border);
    padding: 14px 0;
}
.partner-breadcrumb .container {
    font-size: 13px;
    color: var(--c-text-muted);
}
.partner-breadcrumb a {
    color: var(--c-text-muted);
    transition: color 0.2s;
}
.partner-breadcrumb a:hover { color: var(--c-gold); }
.partner-breadcrumb .sep { margin: 0 8px; color: #ccc; }

/* 数据概览条 */
.partner-stats {
    background: var(--c-primary);
    border-bottom: 2px solid var(--c-gold);
}
.partner-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
}
.partner-stat-item {
    padding: 28px 20px;
    border-right: 1px solid rgba(255,255,255,0.06);
}
.partner-stat-item:last-child { border-right: none; }
.partner-stat-num {
    font-family: var(--font-en);
    font-size: 40px;
    font-weight: 300;
    color: var(--c-gold);
    line-height: 1;
    margin-bottom: 6px;
}
.partner-stat-num sup { font-size: 20px; }
.partner-stat-label {
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 2px;
}

/* 分类导航 */
.partner-filter {
    padding: 40px 0 0;
    background: var(--c-bg);
}
.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 28px;
    border: 1px solid var(--c-border);
    background: var(--c-bg);
    color: var(--c-text-body);
    font-size: 14px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
}
.filter-tab:hover {
    border-color: var(--c-gold);
    color: var(--c-gold);
}
.filter-tab.active {
    background: var(--c-primary);
    border-color: var(--c-primary);
    color: #fff;
}
.filter-tab .count {
    display: inline-block;
    background: rgba(184,148,90,0.15);
    color: var(--c-gold);
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 10px;
    font-family: var(--font-en);
}
.filter-tab.active .count {
    background: rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.8);
}

/* 合作单位网格 */
.partners-section {
    padding: 50px 0 80px;
    background: var(--c-bg);
}
.partner-category-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--c-border);
}
.partner-category-title i {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: var(--c-primary);
    color: var(--c-gold);
    font-size: 16px;
    flex-shrink: 0;
}
.partner-category-title h2 {
    font-size: 22px;
    color: var(--c-text);
    font-weight: 500;
    letter-spacing: 2px;
}
.partner-category-title .cat-count {
    font-size: 13px;
    color: var(--c-text-muted);
    font-family: var(--font-en);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}
.partner-card {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    padding: 24px 16px 18px;
    text-align: center;
    transition: all 0.35s var(--ease);
    position: relative;
    overflow: hidden;
}
.partner-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--c-gold);
    transition: width 0.4s var(--ease);
}
.partner-card:hover {
    border-color: var(--c-gold);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(14,34,64,0.1);
}
.partner-card:hover::after {
    width: 100%;
}

/* Logo 容器 — 固定尺寸、居中显示 */
.partner-logo-wrap {
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    padding: 8px;
    background: #fafafa;
    border-radius: 6px;
}
.partner-logo-wrap img {
    max-width: 100%;
    max-height: 74px;
    object-fit: contain;
    filter: grayscale(20%);
    transition: filter 0.3s, transform 0.3s;
}
.partner-card:hover .partner-logo-wrap img {
    filter: grayscale(0%);
    transform: scale(1.05);
}
.partner-card .partner-name {
    font-size: 13px;
    color: var(--c-text);
    letter-spacing: 1px;
    line-height: 1.5;
    font-weight: 500;
}
.partner-card .partner-cat-tag {
    display: inline-block;
    margin-top: 6px;
    font-size: 11px;
    color: var(--c-gold);
    background: rgba(184,148,90,0.08);
    padding: 2px 10px;
    border-radius: 10px;
}

/* CTA 区域 */
.partner-cta {
    background: var(--c-primary);
    padding: 60px 0;
    text-align: center;
}
.partner-cta .en-label {
    display: block;
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--c-gold);
    margin-bottom: 16px;
}
.partner-cta h2 {
    font-size: 28px;
    color: #fff;
    letter-spacing: 3px;
    margin-bottom: 14px;
    font-weight: 400;
}
.partner-cta p {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 30px;
}
.partner-cta .btn-gold {
    font-size: 15px;
    padding: 12px 40px;
}

/* 响应式 */
@media (max-width: 1100px) {
    .partners-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 992px) {
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .partner-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .partner-hero h1 { font-size: 28px; }
}
@media (max-width: 768px) {
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .partner-hero { height: 240px; }
    .partner-hero h1 { font-size: 24px; }
    .filter-tab { padding: 8px 18px; font-size: 13px; }
}
@media (max-width: 480px) {
    .partners-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .partner-card { padding: 16px 10px 14px; }
    .partner-logo-wrap { height: 70px; }
}