/* CSS for Portfolio Page */

.portfolio-hero {
    background: white;
    padding: 25px 0;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.portfolio-hero h1 {
    font-size: 1.8rem;
    color: var(--text-primary);
    margin-bottom: 5px;
    font-weight: 700;
}

.portfolio-hero p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    max-width: 600px;
}

.portfolio-main {
    padding: 0 0 80px 0;
    background: white;
}

/* Filter Bar */
.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.filter-btn {
    background: white;
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 50px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2);
}

/* Portfolio Grid Update for Dedicated Page */
.portfolio-main {
    padding: 0 0 80px 0;
    background: white;
}

.portfolio-page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px; /* 从 30px 缩小至 20px */
}

/* Custom Card Style for Full Page */
.project-card {
    background: white;
    border-radius: 12px; /* 从 16px 降至 12px，更紧凑 */
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease; /* 统一过渡时间 */
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-2px); /* 与博客一致，保持微动感 */
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color); /* 悬浮颜色对齐 */
}

.project-img-wrapper {
    position: relative;
    width: 100%;
    padding-top: 60%; /* 16:9 aspect ratio */
    overflow: hidden;
    background: #f1f5f9;
}

.project-img-wrapper img, .project-img-wrapper .fa-icon {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.project-img-wrapper .placeholder-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    color: #cbd5e1;
    transition: all 0.4s ease;
}

.project-card:hover .project-img-wrapper img {
    transform: scale(1.05);
}

.project-card:hover .placeholder-icon {
    color: var(--primary-color);
    transform: translate(-50%, -50%) scale(1.1);
}

/* Overlay for buttons */
.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.overlay-btn {
    width: 45px;
    height: 45px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    transform: translateY(20px);
}

.project-card:hover .overlay-btn {
    transform: translateY(0);
}

.overlay-btn:nth-child(2) {
    transition-delay: 0.1s;
}

.overlay-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px) !important;
}

/* Project Info */
.project-info {
    padding: 18px 15px; /* 从 25px 大幅缩小，紧凑感提升 */
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px; /* 缩小间距 */
}

.project-title {
    font-size: 1.15rem; /* 微调标题大小 */
    color: var(--text-primary);
    font-weight: 700;
}

.project-category {
    font-size: 0.8rem;
    color: var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    padding: 4px 10px;
    border-radius: 6px;
    font-weight: 600;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9rem; /* 从 0.95 降至 0.9 */
    line-height: 1.5;
    margin-bottom: 15px;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
}

.project-tags span {
    font-size: 0.8rem;
    color: var(--secondary-color);
    background: #f8fafc;
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #f1f5f9;
}

@media (max-width: 968px) {
    .portfolio-page-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .portfolio-page-grid {
        grid-template-columns: 1fr;
    }
}
/* Project Detail Specific Styles - Center Wide Layout */
.portfolio-detail-main .container {
    max-width: var(--container-width); /* 使用全站统一宽度 1100px */
    margin: 0 auto;
}

.portfolio-detail-main .article-container {
    background: white;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.project-info-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 24px;
    background: #f8fafc;
    border-radius: 12px;
    margin: 30px 0;
    border: 1px solid var(--border-color);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.info-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.info-content {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.info-value {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.status-running {
    color: #10b981;
}

/* Horizontal Project Slider */
.more-projects-section {
    margin-top: 60px;
    padding-bottom: 40px;
}

.more-projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.more-projects-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.view-all-link {
    font-size: 0.9rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.view-all-link:hover {
    text-decoration: underline;
    opacity: 0.8;
}

.more-projects-mask {
    position: relative;
    overflow: hidden; /* 这里负责剪裁多余的卡片边角 */
}

.more-projects-slider {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 10px 0 25px;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-behavior: smooth;
    width: 100%;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px; /* 稍微加大一点更好点 */
    height: 44px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    z-index: 50; /* 极高层级，确保在卡片之上 */
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.slider-arrow:hover {
    background: var(--primary-color);
    color: white;
    border-color: transparent; /* 去掉悬浮时的边框环 */
    transform: translateY(-50%) scale(1.1);
}

.arrow-prev {
    left: -22px; /* 箭头的一半悬浮在外面 */
}

.arrow-next {
    right: -22px;
}

@media (max-width: 1200px) {
    .arrow-prev { left: 5px; }
    .arrow-next { right: 5px; }
}


.more-projects-slider::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.slider-card {
    flex: 0 0 calc(25% - 15px); /* 4个卡片3个空隙，(100% - 20*3)/4 = 25% - 15px */
    scroll-snap-align: start;
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05);
}

.slider-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 20px -5px rgb(0 0 0 / 0.1);
    border-color: var(--primary-color);
}

.slider-card-img {
    height: 100px; /* 从 120px 进一步缩小至 100px */
    width: 100%;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.slider-card-content {
    padding: 10px; /* 从 12px 缩小至 10px */
}

.slider-card-title {
    font-size: 0.95rem; /* 微调字体大小 */
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.slider-card-tag {
    font-size: 0.7rem;
    color: var(--text-secondary);
}


.project-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 30px 0;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.tech-stack-wall {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 20px 0;
}

.tech-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.tech-badge:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 25px 0;
}

.feature-card {
    padding: 20px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.feature-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: block;
}

.feature-card h4 {
    margin-bottom: 8px;
    font-size: 1.1rem;
    font-weight: 700;
}

.feature-card p {
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

@media (max-width: 640px) {
    .feature-cards {
        grid-template-columns: 1fr;
    }
}