@import 'variables.css';

/* 页面基础样式 */
body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
}

/* 页面标题区 */
.page-header {
    background: var(--bg-gradient);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-light);
    z-index: 1;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: 2.5em;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.page-description {
    color: var(--text-secondary);
    font-size: 1.1em;
    max-width: 800px;
    margin: 0 auto;
}

/* 案例展示区 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 60px 0;
}

.case-item {
    background: var(--bg-light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-overlay i {
    color: var(--text-primary);
    font-size: 2em;
}

.case-info {
    padding: 25px;
}

.case-info h3 {
    color: var(--text-primary);
    font-size: 1.4em;
    margin-bottom: 15px;
}

.case-info p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 合作流程 */
.cooperation-process {
    padding: 80px 0;
    background: var(--bg-gradient);
    position: relative;
}

.cooperation-process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-light);
    z-index: 1;
}

.cooperation-process .container {
    position: relative;
    z-index: 2;
}

.process-timeline {
    position: relative;
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 0 20px;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--accent-color);
    opacity: 0.3;
}

.process-step {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.step-icon {
    position: relative;
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    flex-shrink: 0;
}

.step-icon i {
    font-size: 30px;
    color: var(--text-primary);
}

.step-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: var(--accent-color);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    font-weight: bold;
    box-shadow: var(--shadow-sm);
}

.step-content {
    flex: 1;
    max-width: 500px;
    margin-left: 30px;
    background: var(--bg-light);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow-md);
}

.step-content h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 客户反馈 */
.client-feedback {
    padding: 80px 0;
    background-color: var(--bg-dark);
}

.feedback-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feedback-item {
    background: var(--bg-light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.feedback-item:hover {
    transform: translateY(-5px);
}

.feedback-content {
    padding: 30px;
}

.feedback-content blockquote {
    margin: 0 0 20px;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    padding-left: 20px;
    border-left: 4px solid var(--accent-color);
}

.feedback-content footer {
    text-align: right;
    color: var(--text-muted);
}

.feedback-content cite {
    font-style: normal;
    font-weight: 600;
    color: var(--text-primary);
}

/* 合作咨询 */
.cooperation-inquiry {
    padding: 80px 0;
    background: var(--gradient-primary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cooperation-inquiry::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-light);
    z-index: 1;
}

.cooperation-inquiry .container {
    position: relative;
    z-index: 2;
}

.cooperation-inquiry .section-title {
    color: var(--text-primary);
    margin-bottom: 20px;
}

.cooperation-inquiry .section-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.inquiry-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.inquiry-btn {
    display: inline-flex;
    align-items: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.inquiry-btn.primary {
    background-color: var(--accent-color);
    color: var(--text-primary);
}

.inquiry-btn.primary:hover {
    background-color: var(--accent-dark);
    transform: translateY(-2px);
}

.inquiry-btn.secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--text-primary);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .process-timeline::before {
        left: 40px;
    }

    .process-step {
        justify-content: flex-start;
    }

    .step-icon {
        width: 60px;
        height: 60px;
        margin-left: 10px;
    }

    .step-icon i {
        font-size: 24px;
    }

    .step-number {
        width: 25px;
        height: 25px;
        font-size: 12px;
    }

    .step-content {
        margin-left: 20px;
    }

    .feedback-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .page-title {
        font-size: 2em;
    }

    .feedback-grid {
        grid-template-columns: 1fr;
    }

    .inquiry-buttons {
        flex-direction: column;
        align-items: center;
    }

    .inquiry-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .cooperation-process {
        padding: 60px 0;
    }

    .step-content {
        padding: 15px;
    }

    .step-content h3 {
        font-size: 1.2rem;
    }

    .cooperation-inquiry {
        padding: 60px 0;
    }

    .cooperation-inquiry .section-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    .inquiry-btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
}

/* 仅深色背景区块字体为白色 */
.project-statistics, .project-statistics *,
.cooperation-process, .cooperation-process *,
.page-title, .page-title *,
.section-title, .section-title * {
    color: #fff !important;
    text-shadow: 0 0 2px #000, 0 1px 4px rgba(0,0,0,0.7) !important;
}

/* 统计数字加粗 */
.project-statistics h3 {
    font-weight: bold !important;
}

/* Cooperation Process主标题加粗 */
.cooperation-process .section-title, .cooperation-process h2, .cooperation-process h3 {
    font-weight: bold !important;
}

/* 强制项目统计区块所有文字为白色并加阴影 */
.project-statistics, .project-statistics *,
.statistics-grid, .statistics-grid *,
.statistic-item, .statistic-item *,
.project-statistics h3, .project-statistics p, .project-statistics i {
    color: #fff !important;
    text-shadow: 0 0 2px #000, 0 1px 4px rgba(0,0,0,0.7) !important;
}

.project-statistics h3 {
    font-weight: bold !important;
}

/* 浅色背景区块字体为黑色 */
.page-title, .page-title *,
.breadcrumb, .breadcrumb * {
    color: #222 !important;
    text-shadow: none !important;
}

/* 合作流程区块字体为黑色 */
.cooperation-process, .cooperation-process *,
.cooperation-process .step-content, .cooperation-process .step-content *,
.cooperation-process .section-title, .cooperation-process h2, .cooperation-process h3, .cooperation-process p {
    color: #222 !important;
    text-shadow: none !important;
}

/* 案例筛选按钮样式（放大为与产品页相近大小） */
.case-filter {
    padding: 40px 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 12px 25px;
    border: 2px solid #007bff;
    border-radius: 25px;
    background: none;
    color: #007bff;
    cursor: pointer;
    font-weight: 600;
    font-size: 16px; /* 接近产品页按钮文字大小 */
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-width: 140px; /* 与产品页类似的最小宽度 */
    justify-content: center;
    transition: all 0.25s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: #007bff;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,123,255,0.2);
}

.filter-btn:focus-visible {
    outline: 3px solid rgba(0,123,255,0.35);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .filter-buttons { gap: 10px; }
    .filter-btn {
        padding: 10px 20px;
        font-size: 14px;
        flex: 1;
        min-width: 120px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .filter-btn { transition: none; }
}