/**
 * 组件样式 - 合作伙伴Logo墙 + FAQ + 新闻卡片
 */

/* ==================== 合作伙伴Logo墙 ==================== */

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

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

.partners-track {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    align-items: center;
    padding: 1rem 0;
}

.partners-track-left,
.partners-track-right {
    animation: none !important;
}

.partner-logo {
    flex-shrink: 0;
    width: 160px;
    height: 100px;
    background: white;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: grayscale(60%);
    position: relative;
    overflow: hidden;
}

.partner-logo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(34, 197, 94, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.partner-logo:hover {
    transform: scale(1.2);
    z-index: 10;
    filter: grayscale(0%) brightness(1.1);
    box-shadow: 0 8px 32px rgba(34, 197, 94, 0.3);
}

.partner-logo:hover::before {
    opacity: 1;
}

.partner-logo i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    transition: transform 0.4s ease;
}

.partner-logo:hover i {
    transform: scale(1.1) rotate(5deg);
}

.partner-logo span {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    text-align: center;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: 2rem;
    font-weight: 700;
    color: #166534;
    margin-bottom: 1.5rem;
}

/* ==================== FAQ常见问题 ==================== */

.faq-item {
    background: white;
    border-radius: 1rem;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.faq-item:hover {
    border-color: #e5e7eb;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.faq-item.expanded {
    border-color: #22c55e;
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.1);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f9fafb;
}

.faq-question-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: #111827;
    flex: 1;
    display: flex;
    align-items: center;
}

.faq-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #f3f4f6;
    color: #6b7280;
    font-size: 1.25rem;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    flex-shrink: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
}

.faq-answer-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
    color: #6b7280;
    line-height: 1.8;
}

.faq-answer-content p {
    margin-bottom: 1rem;
}

.faq-answer-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.faq-answer-content ul li {
    margin-bottom: 0.5rem;
}

.faq-answer-content strong {
    color: #374151;
    font-weight: 600;
}

.faq-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: 0.5rem;
    margin-top: 0.5rem;
}

.faq-search-box {
    position: relative;
    margin-bottom: 2rem;
}

.faq-search-input {
    width: 100%;
    padding: 1.25rem 3.5rem 1.25rem 3.5rem;
    border: 2px solid #e5e7eb;
    border-radius: 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.faq-search-input:focus {
    outline: none;
    border-color: #22c55e;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.1);
}

.faq-search-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 1.25rem;
    pointer-events: none;
}

.faq-search-clear {
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border: none;
    background: #f3f4f6;
    border-radius: 50%;
    color: #6b7280;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0;
}

.faq-search-input:not(:placeholder-shown) ~ .faq-search-clear {
    opacity: 1;
}

.faq-search-clear:hover {
    background: #ef4444;
    color: white;
}

/* ==================== 新闻卡片 ==================== */

.news-card {
    background: white;
    border-radius: 1.25rem;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.news-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.news-card img {
    transition: transform 0.4s ease;
}

.news-card:hover img {
    transform: scale(1.1);
}

.news-category-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e5e7eb;
    background: white;
    color: #6b7280;
    border-radius: 2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.news-category-btn:hover {
    border-color: #22c55e;
    color: #22c55e;
    transform: translateY(-2px);
}

.news-category-btn.active {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: white;
    border-color: transparent;
}

/* ==================== 通用动画 ==================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translate(-50%, -100%);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@keyframes slideUp {
    from {
        opacity: 1;
        transform: translate(-50%, 0);
    }
    to {
        opacity: 0;
        transform: translate(-50%, -100%);
    }
}

/* ==================== 响应式 ==================== */

@media (max-width: 768px) {
    .partners-track {
        gap: 2rem;
    }

    .partner-logo {
        width: 120px;
        height: 80px;
        padding: 1rem;
    }

    .partner-logo i {
        font-size: 2rem;
    }

    .partner-logo span {
        font-size: 0.75rem;
    }

    .faq-question-text {
        font-size: 1rem;
    }

    .faq-answer-content {
        font-size: 0.9375rem;
    }

    .news-card {
        margin-bottom: 1.5rem;
    }
}

/* ==================== line-clamp工具类 ==================== */

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}