/* ============================================
   Project Detail Page Styles
   ============================================ */

/* 确保内容在 canvas 之上 */
body {
    position: relative;
}

/* Project Header */
.project-header {
    padding: 160px 0 80px;
    background: transparent;
    text-align: center;
}

.project-header-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.project-back {
    margin-bottom: 32px;
}

.project-back a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s var(--ease-out);
}

.project-back a:hover {
    color: var(--accent-primary);
}

.project-back i {
    font-size: 0.8rem;
}

.project-meta {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.project-tag {
    padding: 6px 16px;
    background: var(--accent-gradient);
    border-radius: 50px;
    color: var(--bg-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.project-year {
    padding: 6px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.project-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.2;
}

.project-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.project-tech {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.project-tech span {
    padding: 8px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

/* Project Gallery */
.project-gallery {
    padding: 80px 24px;
    background: transparent;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.gallery-grid {
    display: grid;
    gap: 24px;
}

.gallery-main {
    border-radius: 16px;
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.gallery-image {
    width: 100%;
    height: auto;
    display: block;
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.thumb-item {
    border-radius: 12px;
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.thumb-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.thumb-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

/* Project Section */
.project-section {
    padding: 80px 24px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: transparent;
}

.project-section.section-dark {
    background: transparent;
}

.project-section.section-light {
    background: transparent;
}

.project-content {
    max-width: 1000px;
    margin: 0 auto;
}

.content-block {
    margin-bottom: 48px;
    text-align: center;
}

.content-block .section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.lead-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.feature-card {
    padding: 32px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    transition: all 0.3s var(--ease-out);
}

.feature-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 12px;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--bg-primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Tech Stack */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.tech-category h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--glass-border);
}

.tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-item {
    padding: 6px 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Architecture Diagram */
.architecture-diagram {
    margin-top: 48px;
    padding: 32px;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

.architecture-diagram h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.diagram-content pre {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
    overflow-x: auto;
    padding: 20px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

/* Feature Detail */
.feature-detail {
    margin-top: 48px;
}

.detail-item {
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--glass-border);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.detail-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-modes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.mode-card {
    padding: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.mode-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 8px;
}

.mode-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

.search-example {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.search-example code {
    padding: 16px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.platform-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.platform-tag {
    padding: 10px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Stats Grid Simple */
.stats-grid-simple {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.stat-box {
    text-align: center;
    padding: 32px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

.stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Project Footer */
.project-footer {
    padding: 80px 24px;
    background: transparent;
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
}

.project-footer .container {
    max-width: 800px;
    margin: 0 auto;
}

.project-footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.project-contact {
    text-align: right;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.project-contact-text {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 992px) {
    .gallery-thumbs {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .project-header {
        padding: 120px 0 60px;
    }

    .project-footer-content {
        flex-direction: column;
        text-align: center;
        gap: 32px;
    }

    .project-contact {
        text-align: center;
        align-items: center;
    }

    .feature-modes {
        grid-template-columns: 1fr;
    }

    .architecture-diagram pre {
        font-size: 0.75rem;
    }

    .gallery-thumbs {
        grid-template-columns: 1fr;
    }

    .thumb-image {
        height: 100px;
    }
}