/* ==================== 项目案例页面专用样式 ==================== */

/* Banner 变体 */
.projects-banner {
    background: linear-gradient(135deg, #1F4421 0%, #2C5F2D 50%, #4A8B4D 100%);
    color: var(--color-white);
    padding: 140px 0 80px;
}

.projects-banner::before {
    background: radial-gradient(circle, rgba(151, 188, 98, 0.25) 0%, transparent 70%);
}

.projects-banner h1 {
    color: var(--color-white);
}

.projects-banner p {
    color: rgba(255, 255, 255, 0.85);
}

.projects-banner .breadcrumb {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
}

.projects-banner .breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
}

.projects-banner .breadcrumb a:hover {
    color: var(--color-accent-light);
}

.projects-banner .breadcrumb span {
    color: var(--color-accent-light);
}

/* ==================== 分类筛选 ==================== */
.projects-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 32px;
}

.filter-btn {
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: 24px;
    cursor: pointer;
    transition: var(--transition);
}

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

.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 6px 16px rgba(44, 95, 45, 0.20);
}

/* 工具栏 */
.projects-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 36px;
    gap: 16px;
}

.search-input {
    flex: 1;
    max-width: 400px;
    padding: 12px 18px;
    background: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: 24px;
    font-size: 14px;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(44, 95, 45, 0.10);
    outline: none;
}

.result-count {
    font-size: 14px;
    color: var(--color-text-light);
}

/* ==================== 项目卡片网格 ==================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.project-card {
    background: var(--color-white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent-light);
}

.project-card-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.project-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-card-image img {
    transform: scale(1.08);
}

.project-card-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 64px;
}

.project-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.45) 100%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
}

.project-card-badge {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-primary);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.project-card-body {
    padding: 24px;
}

.project-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
}

.project-card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.project-card-summary {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

.project-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}

.project-card-services {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.service-tag-mini {
    font-size: 11px;
    padding: 3px 8px;
    background: rgba(151, 188, 98, 0.15);
    color: var(--color-primary-dark);
    border-radius: 10px;
}

.project-card-link {
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.project-card-link::after {
    content: '→';
    transition: transform 0.3s ease;
}

.project-card:hover .project-card-link::after {
    transform: translateX(4px);
}

/* 加载更多 */
.load-more-wrapper {
    text-align: center;
    margin-top: 60px;
}

.no-more {
    color: var(--color-text-light);
    font-size: 14px;
    margin-top: 32px;
}

/* 空状态 */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--color-text-light);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* ==================== 项目详情页 ==================== */
.loading-screen {
    text-align: center;
    padding: 200px 20px 80px;
    color: var(--color-text-light);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto 16px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error-screen {
    text-align: center;
    padding: 200px 20px 80px;
}

.error-icon {
    font-size: 72px;
    margin-bottom: 20px;
}

.error-screen h2 {
    color: var(--color-primary-dark);
    margin-bottom: 12px;
}

.error-screen p {
    color: var(--color-text-light);
    margin-bottom: 32px;
}

/* 项目封面 */
.project-hero {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: flex-end;
    padding-bottom: 60px;
    margin-top: 0;
    padding-top: 120px;
    overflow: hidden;
    color: var(--color-white);
}

.project-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1F4421 0%, #2C5F2D 50%, #4A8B4D 100%);
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.project-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.55) 100%);
    z-index: -1;
}

.project-hero .container {
    position: relative;
    z-index: 1;
}

.project-hero-content {
    max-width: 800px;
}

.project-category-tag {
    display: inline-block;
    background: rgba(151, 188, 98, 0.95);
    color: var(--color-primary-dark);
    padding: 6px 16px;
    border-radius: 18px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
}

.project-hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 24px;
    text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    font-size: 15px;
}

.project-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0.92;
}

/* 项目正文 */
.project-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 60px;
    align-items: start;
}

.project-main h2 {
    font-size: 28px;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.project-main > div {
    margin-bottom: 48px;
}

.project-summary p {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.9;
}

/* 服务内容 */
.project-services-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg-alt);
    border-radius: 10px;
    border-left: 3px solid var(--color-accent);
}

.service-item-icon {
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Word 文档转换后的内容样式 */
.project-content-html {
    font-size: 16px;
    line-height: 1.9;
    color: var(--color-text);
}

.project-content-html h1,
.project-content-html h2,
.project-content-html h3 {
    color: var(--color-primary-dark);
    margin: 28px 0 16px;
    font-weight: 600;
}

.project-content-html h1 { font-size: 26px; }
.project-content-html h2 { font-size: 22px; }
.project-content-html h3 { font-size: 18px; }

.project-content-html p {
    margin-bottom: 16px;
}

.project-content-html ul,
.project-content-html ol {
    margin: 16px 0;
    padding-left: 24px;
    list-style: disc;
}

.project-content-html img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 20px 0;
    box-shadow: var(--shadow-sm);
    loading: lazy;
}

.project-content-html table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.project-content-html th,
.project-content-html td {
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    text-align: left;
}

.project-content-html th {
    background: var(--color-bg-alt);
    color: var(--color-primary-dark);
    font-weight: 600;
}

.project-content-html blockquote {
    border-left: 4px solid var(--color-accent);
    padding: 12px 20px;
    margin: 20px 0;
    background: var(--color-bg-alt);
    color: var(--color-text-light);
}

/* 项目图集 */
.project-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.gallery-item {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-bg-alt);
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow-md);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 侧边栏 */
.project-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: var(--color-white);
    border-radius: 14px;
    padding: 28px;
    margin-bottom: 20px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.sidebar-card h4 {
    font-size: 17px;
    color: var(--color-primary-dark);
    margin-bottom: 20px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 14px;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--color-text-light);
}

.info-value {
    color: var(--color-text);
    font-weight: 500;
    text-align: right;
    max-width: 60%;
}

.sidebar-cta {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
}

.sidebar-cta h4 {
    color: var(--color-white);
}

.sidebar-cta p {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 20px;
    line-height: 1.6;
}

.sidebar-cta .btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
    width: 100%;
}

.sidebar-cta .btn-primary:hover {
    background: var(--color-accent-light);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
    .project-layout { grid-template-columns: 1fr; }
    .project-sidebar { position: static; }
    .project-hero h1 { font-size: 36px; }
}

@media (max-width: 768px) {
    .projects-grid { grid-template-columns: 1fr; }
    .projects-toolbar { flex-direction: column; align-items: stretch; }
    .search-input { max-width: 100%; }
    .project-gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .project-services-list { grid-template-columns: 1fr; }
    .project-hero { min-height: 360px; padding-bottom: 40px; }
    .project-hero h1 { font-size: 28px; }
    .project-meta { gap: 12px; font-size: 13px; }
}

@media (max-width: 480px) {
    .filter-btn { padding: 8px 14px; font-size: 13px; }
    .project-card-body { padding: 20px; }
}

/* ==================== 精选案例滚动轮播 ==================== */
.project-showcase {
    padding: 52px 0 64px;
    background: var(--color-bg);
    overflow: hidden;
}

.project-showcase-header {
    text-align: center;
    margin-bottom: 32px;
}

.project-showcase-header .showcase-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(44, 95, 45, 0.08);
    color: var(--color-primary);
    border-radius: 16px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.project-showcase-header h2 {
    font-size: 28px;
    color: var(--color-primary-dark);
    margin-bottom: 8px;
}

.project-showcase-header p {
    color: var(--color-text-light);
    font-size: 15px;
}

.showcase-track {
    display: flex;
    gap: 24px;
    width: max-content;
    animation: showcase-scroll 50s linear infinite;
    will-change: transform;
}

.showcase-track:hover {
    animation-play-state: paused;
}

.showcase-item {
    position: relative;
    width: 420px;
    height: 280px;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    text-decoration: none;
}

.showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.showcase-item:hover img {
    transform: scale(1.05);
}

.showcase-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.65) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    color: #fff;
}

.showcase-item-overlay h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.35;
}

.showcase-item-overlay p {
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    margin: 0;
}

.showcase-item-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(255,255,255,0.95);
    color: var(--color-primary);
    padding: 5px 12px;
    border-radius: 14px;
    font-size: 12px;
    font-weight: 600;
}

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

@media (max-width: 768px) {
    .showcase-item {
        width: 300px;
        height: 200px;
    }
    .project-showcase-header h2 {
        font-size: 22px;
    }
}

/* ==================== 详情页内容增强 ==================== */
.project-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.highlight-card {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
    padding: 24px;
    border-radius: 14px;
    text-align: center;
}

.highlight-card strong {
    display: block;
    font-size: 22px;
    margin-bottom: 6px;
}

.highlight-card span {
    font-size: 13px;
    opacity: 0.9;
}

.project-section {
    margin-bottom: 48px;
}

.project-section h2 {
    font-size: 22px;
    color: var(--color-primary-dark);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.project-section p,
.project-section li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text);
}

.project-section ul {
    padding-left: 22px;
    list-style: disc;
}

.project-section li {
    margin-bottom: 8px;
}

.project-gallery-main {
    margin-bottom: 48px;
}

.gallery-main-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 14px;
    overflow: hidden;
    background: var(--color-bg-alt);
    margin-bottom: 16px;
}

.gallery-main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
}

.gallery-thumbs {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 6px;
}

.gallery-thumb {
    width: 96px;
    height: 72px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.gallery-thumb.active,
.gallery-thumb:hover {
    border-color: var(--color-primary);
}

.gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Lightbox */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-img {
    max-width: 92vw;
    max-height: 88vh;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 24px;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    opacity: 0.8;
}

.lightbox-close:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .project-highlights {
        grid-template-columns: 1fr;
    }
    .gallery-main-image {
        aspect-ratio: 4 / 3;
    }
}