/* ===== PAGE HEADER ===== */
.page-header {
    background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%);
    padding: 140px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(212,33,61,.06) 0%, transparent 70%);
    border-radius: 50%;
}

.page-header h1 {
    font-family: 'Noto Serif SC', serif;
    font-size: 42px;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: rgba(255,255,255,.6);
    font-size: 14px;
    position: relative;
}

.breadcrumb a { color: rgba(255,255,255,.8); }
.breadcrumb a:hover { color: #fff; text-decoration: none; }
.breadcrumb i { font-size: 10px; }

/* ===== PAGE CONTENT ===== */
.page-content { padding: 60px 0; }

/* ===== FILTER BAR ===== */
.filter-bar {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 30px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-group:last-child { margin-bottom: 0; }

.filter-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    min-width: 50px;
}

.filter-chip {
    padding: 6px 16px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-light);
}

.filter-chip:hover,
.filter-chip.active {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

/* ===== CASES GRID LARGE ===== */
.cases-grid-large {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.case-card-lg {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card-lg:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.case-img-lg {
    position: relative;
    overflow: hidden;
}

.case-img-lg .img-placeholder { height: 240px; transition: var(--transition); }

.case-card-lg:hover .case-img-lg .img-placeholder { transform: scale(1.05); }

.case-overlay-lg {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.9) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
    color: #fff;
}

.case-card-lg:hover .case-overlay-lg { opacity: 1; }

.case-overlay-lg h3 { font-size: 18px; margin-bottom: 6px; }
.case-overlay-lg p { font-size: 13px; opacity: .8; margin-bottom: 12px; }

.case-detail-btn {
    color: #fff;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.case-detail-btn:hover { gap: 10px; color: #fff; text-decoration: none; }

.case-info-lg {
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.case-info-left h4 { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.case-info-left span { font-size: 13px; color: var(--text-muted); }

.case-info-right {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
}

.case-info-right i { color: var(--red); margin-right: 4px; }

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover,
.page-btn.active {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.page-btn.next { width: auto; padding: 0 16px; }

/* ===== DESIGNERS PAGE ===== */
.designers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.designer-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.designer-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.designer-img {
    position: relative;
    overflow: hidden;
}

.designer-img .img-placeholder { height: 280px; }

.designer-level {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 14px;
    background: var(--red);
    color: #fff;
    font-size: 12px;
    border-radius: 20px;
}

.designer-info { padding: 20px; text-align: center; }
.designer-info h4 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.designer-exp { font-size: 13px; color: var(--red); font-weight: 500; margin-bottom: 8px; display: block; }
.designer-style { font-size: 13px; color: var(--text-light); margin-bottom: 12px; }

.designer-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    margin-bottom: 16px;
}

.designer-stats span { font-size: 12px; color: var(--text-muted); }
.designer-stats strong { font-size: 18px; color: var(--red); margin-right: 4px; }

.designer-btn {
    display: block;
    padding: 10px;
    background: var(--bg-light);
    border-radius: var(--radius);
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--red);
    transition: var(--transition);
}

.designer-btn:hover { background: var(--red); color: #fff; text-decoration: none; }

/* ===== LOCATIONS PAGE ===== */
.locations-map {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.map-placeholder {
    height: 400px;
    background: linear-gradient(135deg, #e8f4f8 0%, #d1ecf1 100%);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.map-placeholder i { font-size: 60px; color: var(--red); margin-bottom: 12px; }
.map-placeholder span { font-size: 16px; }

.province-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.province-tab {
    padding: 8px 16px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.province-tab:hover,
.province-tab.active {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.locations-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.location-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.location-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--red);
    display: inline-block;
}

.location-card .loc-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 13px;
    color: var(--text-light);
}

.location-card .loc-item i { color: var(--red); margin-top: 3px; width: 16px; flex-shrink: 0; }

/* ===== ENGINEERING PAGE ===== */
.engineering-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.eng-feature-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.eng-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.eng-feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: rgba(212,33,61,.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--red);
    font-size: 32px;
}

.eng-feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.eng-feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

.process-detail {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}

.process-detail h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    text-align: center;
    margin-bottom: 30px;
}

.process-detail-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.process-detail-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.process-detail-item:hover { background: #fff; box-shadow: var(--shadow); }

.process-detail-num {
    width: 40px;
    height: 40px;
    background: var(--red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.process-detail-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.process-detail-item p { font-size: 13px; color: var(--text-light); }

/* ===== MATERIALS PAGE ===== */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.material-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.material-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.material-img .img-placeholder { height: 180px; }

.material-info { padding: 20px; }
.material-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.material-info p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; }

.material-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(76,175,80,.1);
    color: #4caf50;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.materials-standards {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}

.materials-standards h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    text-align: center;
    margin-bottom: 30px;
}

.standards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.standard-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.standard-item i { font-size: 36px; color: var(--red); margin-bottom: 12px; }
.standard-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.standard-item p { font-size: 13px; color: var(--text-light); }

/* ===== GUIDE PAGE ===== */
.guide-categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.guide-cat-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.guide-cat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.guide-cat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: rgba(212,33,61,.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--red);
    font-size: 24px;
}

.guide-cat-card h4 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.guide-cat-card p { font-size: 13px; color: var(--text-muted); }

.guide-articles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.guide-article-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.guide-article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.guide-article-img .img-placeholder { height: 180px; }

.guide-article-info { padding: 20px; }
.guide-article-tag { display: inline-block; padding: 3px 10px; background: var(--red); color: #fff; border-radius: 12px; font-size: 11px; margin-bottom: 10px; }
.guide-article-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.guide-article-info p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 12px; }
.guide-article-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-muted); }

/* ===== PRODUCTS PAGE ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-img .img-placeholder { height: 200px; }

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 3px 10px;
    background: var(--red);
    color: #fff;
    font-size: 11px;
    border-radius: 12px;
}

.product-info { padding: 20px; }
.product-info h4 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.product-info p { font-size: 13px; color: var(--text-light); margin-bottom: 12px; }

.product-price {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.product-price .price { font-size: 20px; font-weight: 700; color: var(--red); }
.product-price .original { font-size: 13px; color: var(--text-muted); text-decoration: line-through; }

.product-btn {
    display: block;
    padding: 10px;
    background: var(--bg-light);
    border-radius: var(--radius);
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--red);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    width: 100%;
}

.product-btn:hover { background: var(--red); color: #fff; }

/* ===== ABOUT PAGE ===== */
.about-hero {
    background: linear-gradient(135deg, var(--dark), #16213e);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.about-hero h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    margin-bottom: 16px;
}

.about-hero p { font-size: 18px; opacity: .8; max-width: 700px; margin: 0 auto; }

.about-content-section {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.about-grid.reverse { direction: rtl; }
.about-grid.reverse > * { direction: ltr; }

.about-text h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--text);
}

.about-text p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-img-placeholder {
    height: 350px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-img-placeholder .img-placeholder { height: 100%; }

.about-timeline {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    margin-top: 40px;
}

.about-timeline h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    text-align: center;
    margin-bottom: 30px;
}

.timeline-list {
    position: relative;
    padding-left: 30px;
}

.timeline-list::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--red);
    opacity: .3;
}

.timeline-item {
    position: relative;
    padding-bottom: 24px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 6px;
    width: 12px;
    height: 12px;
    background: var(--red);
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--red);
}

.timeline-year {
    font-size: 14px;
    font-weight: 700;
    color: var(--red);
    margin-bottom: 4px;
}

.timeline-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.timeline-item p { font-size: 14px; color: var(--text-light); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .cases-grid-large,
    .designers-grid,
    .materials-grid,
    .guide-articles,
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    
    .engineering-features,
    .standards-grid,
    .guide-categories { grid-template-columns: repeat(2, 1fr); }
    
    .locations-list { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .process-detail-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .page-header h1 { font-size: 28px; }
    .cases-grid-large,
    .designers-grid,
    .materials-grid,
    .guide-articles,
    .products-grid,
    .engineering-features,
    .standards-grid,
    .guide-categories,
    .locations-list { grid-template-columns: 1fr; }
}