/* =====================================================
   合作伙伴展示栏 - 深蓝科技风格
   双排横向自动滚动设计
   ===================================================== */

.partners-section {
    padding: 96px 0;
    background: #0f1a44;
    overflow: hidden;
    position: relative;
}

/* 区域标题样式 - 与首页其他板块一致（黄色渐变标题） */
.partners-section .section-title {
    text-align: center;
    margin-bottom: 40px;
}

.partners-section .section-title h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #F59E0B, #FBBF24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.partners-section .section-title p {
    font-size: 1.125rem;
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
    color: #94A3B8;
}

/* =====================================================
   滚动容器基础样式
   ===================================================== */

.partners-marquee {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.marquee-row {
    position: relative;
    width: 100%;
    padding: 16px 0;
    overflow: hidden;
}

.marquee-track {
    display: flex;
    align-items: center;
    gap: 28px;
    width: max-content;
    will-change: transform;
}

/* =====================================================
   滚动动画定义
   ===================================================== */

/* 企业排：从左向右滚动 */
@keyframes marquee-enterprise {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0%);
    }
}

/* 院校排：从右向左滚动（反向） */
@keyframes marquee-university {
    0% {
        transform: translateX(0%);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 应用动画 */
.marquee-row-enterprise .marquee-track {
    animation: marquee-enterprise 40s linear infinite;
}

.marquee-row-university .marquee-track {
    animation: marquee-university 40s linear infinite;
}

/* 悬停暂停效果 */
.marquee-row:hover .marquee-track {
    animation-play-state: paused;
}

/* =====================================================
   合作伙伴项目样式 - Logo和文字并排展示
   ===================================================== */

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 6px;
    background: transparent;
    border: 0;
    border-radius: 14px;
    min-width: auto;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
}

.partner-item:hover {
    transform: translateY(-1px);
}

/* Logo容器 - 彩色展示 */
.partner-logo {
    width: 220px;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FFFFFF;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    overflow: hidden;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.partner-item:hover .partner-logo {
    transform: scale(1.03);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
}

.partner-logo img {
    width: 100%;
    height: 100%;
    padding: 12px 16px;
    box-sizing: border-box;
    display: block;
    object-fit: contain;
    filter: none;
    transition: all 0.3s ease;
}

.partner-item:hover .partner-logo img {
    transform: scale(1.02);
}

/* 合作伙伴名称 */
.partner-name {
    font-size: 1.125rem;
    font-weight: 500;
    color: #E2E8F0;
    letter-spacing: 0.01em;
    text-align: left;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.partner-item:hover .partner-name {
    color: #FFFFFF;
}

/* =====================================================
   边缘渐变遮罩
   ===================================================== */

.partners-marquee::before,
.partners-marquee::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 10;
    pointer-events: none;
}

.partners-marquee::before {
    left: 0;
    background: linear-gradient(90deg,
        #0f1a44 0%,
        rgba(15, 23, 42, 0.9) 50%,
        transparent 100%
    );
}

.partners-marquee::after {
    right: 0;
    background: linear-gradient(-90deg,
        #0f1a44 0%,
        rgba(15, 23, 42, 0.9) 50%,
        transparent 100%
    );
}

/* =====================================================
   响应式设计
   ===================================================== */

@media (max-width: 1200px) {
    .partner-logo {
        width: 196px;
        height: 86px;
    }

    .partner-logo img {
        padding: 10px 14px;
    }
}

@media (max-width: 768px) {
    .partners-section {
        padding: 40px 0;
    }

    .partners-section .section-title h2 {
        font-size: 1.75rem;
    }

    .partners-section .section-title p {
        font-size: 0.875rem;
    }

    .marquee-track {
        gap: 16px;
    }

    .partner-item {
        padding: 4px;
        gap: 8px;
    }

    .partner-logo {
        width: 160px;
        height: 70px;
    }

    .partner-logo img {
        padding: 8px 12px;
    }

    .partners-marquee::before,
    .partners-marquee::after {
        width: 40px;
    }
}

/* 触控设备优化 */
@media (hover: none) {
    .partner-item:hover {
        transform: none;
        box-shadow: none;
    }

    .partner-item:active {
        background: rgba(30, 58, 138, 0.5);
        transform: scale(0.98);
    }
}

/* =====================================================
   减弱动画模式支持
   ===================================================== */

@media (prefers-reduced-motion: reduce) {
    .marquee-row-enterprise .marquee-track,
    .marquee-row-university .marquee-track {
        animation: none;
    }

    .partner-item {
        transition: none;
    }

    .partner-item:hover {
        transform: none;
    }
}