/* ============================================
   萬大發電廠環境教育學習網 - 友善連結頁面
   kun 2025-01-17
   ============================================ */

/* ============================================
   4張輪播圖設定覆蓋
   ============================================ */
.banner-carousel .carousel-slide {
    animation: fadeSlide4 16s infinite;
}

.banner-carousel .carousel-slide:nth-child(1) {
    animation-delay: 0s;
}

.banner-carousel .carousel-slide:nth-child(2) {
    animation-delay: 4s;
}

.banner-carousel .carousel-slide:nth-child(3) {
    animation-delay: 8s;
}

.banner-carousel .carousel-slide:nth-child(4) {
    animation-delay: 12s;
}

@keyframes fadeSlide4 {
    0% {
        opacity: 0;
    }

    5% {
        opacity: 1;
    }

    25% {
        opacity: 1;
    }

    30% {
        opacity: 0;
    }

    100% {
        opacity: 0;
    }
}

/* ============================================
   LINKS SECTION - 友善連結區塊
   ============================================ */
.links-section {
    max-width: var(--container-content);
    margin: var(--spacing-6xl) auto;
    padding: 0 var(--container-padding-md);
}

/* ============================================
   LINKS GRID - 連結卡片網格
   ============================================ */
.links-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3xl);
}

/* ============================================
   LINK CARD - 連結卡片
   ============================================ */
.link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.link-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

/* Logo 區域 */
.link-logo {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.link-logo img {
    max-width: 200%;
    max-height: 100%;
    object-fit: contain;
}

/* 連結名稱 */
.link-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
}

.link-card:hover .link-name {
    color: var(--color-primary);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    .links-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-2xl);
    }

    .link-card {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .link-logo {
        width: 80px;
        height: 80px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .links-section {
        margin: var(--spacing-4xl) auto;
        padding: 0 var(--container-padding-sm);
    }

    .links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }

    .link-card {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .link-logo {
        width: 70px;
        height: 70px;
        margin-bottom: var(--spacing-lg);
    }

    .link-name {
        font-size: var(--font-size-sm);
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .link-card {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .link-logo {
        width: 60px;
        height: 60px;
    }

    .link-name {
        font-size: var(--font-size-xs);
    }
}