/* ============================================
   iNNOVA 分类页优化样式
   按文档规范：分类介绍 + 子分类入口 + 专业筛选面板
   ============================================ */

/* PLP 双栏布局 */
.innova-plp-page {
    padding-bottom: 64px;
    background: var(--color-bg-light, #F4F7F9);
}
.innova-plp-banner {
    background: #fff;
    border-bottom: 1px solid #eef0f3;
}
.innova-plp-banner img {
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    display: block;
    aspect-ratio: 1920 / 400;
}
.innova-plp-header {
    background: #fff;
    padding: 24px 0 28px;
    border-bottom: 1px solid #eef0f3;
    margin-bottom: 28px;
}
.innova-plp-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    margin-top: 20px;
}
.innova-plp-trust span {
    font-size: 13px;
    font-weight: 600;
    color: #0B1E33;
    padding-left: 22px;
    position: relative;
}
.innova-plp-trust span::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #F5C300;
    font-weight: 800;
}
.innova-plp-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    align-items: start;
}
.innova-plp-main {
    min-width: 0;
}
.innova-filter-sidebar {
    position: sticky;
    top: 100px;
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #eef0f3;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.innova-filter-sidebar-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #0B1E33;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f0f0f0;
}
.innova-filter-group {
    border-bottom: 1px solid #f5f5f5;
    padding: 8px 0;
}
.innova-filter-group summary {
    font-size: 13px;
    font-weight: 700;
    color: #0B1E33;
    cursor: pointer;
    padding: 8px 0;
    list-style: none;
}
.innova-filter-group summary::-webkit-details-marker { display: none; }
.innova-filter-check {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 13px;
    color: #555;
    cursor: pointer;
}
.innova-filter-check input {
    width: 16px;
    height: 16px;
    accent-color: #F5C300;
}
.innova-active-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.innova-active-filter-tag {
    padding: 6px 12px;
    background: #fff;
    border: 1px solid #F5C300;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: #0B1E33;
}
.innova-plp-seo {
    margin-top: 40px;
    padding: 24px;
    background: #fff;
    border-radius: 10px;
    border: 1px solid #eef0f3;
}
.innova-plp-seo p {
    font-size: 14px;
    line-height: 1.8;
    color: #666;
    margin: 0;
}

/* 分类页头部 */
.innova-category-header {
    margin-bottom: 24px;
}
.innova-category-title {
    font-size: 28px;
    font-weight: 800;
    color: #0B1E33;
    margin: 0 0 12px;
    padding: 0;
    line-height: 1.3;
}
.innova-category-desc {
    font-size: 15px;
    line-height: 1.7;
    color: #555;
    margin: 0;
    max-width: 900px;
}

/* 子分类快捷入口 */
.innova-subcategory-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}
.innova-subcategory-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid #eef0f3;
    border-radius: 10px;
    text-decoration: none !important;
    color: #0B1E33 !important;
    transition: all 0.25s ease;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.innova-subcategory-card:hover {
    border-color: #F5C300;
    box-shadow: 0 4px 16px rgba(245, 195, 0, 0.15);
    transform: translateY(-2px);
}
.innova-subcategory-img {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    background: #f8fafb;
    display: flex;
    align-items: center;
    justify-content: center;
}
.innova-subcategory-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.innova-subcategory-img--placeholder {
    color: #ccc;
}
.innova-subcategory-info {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 0;
}
.innova-subcategory-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.innova-subcategory-arrow {
    font-size: 16px;
    color: #999;
    transition: color 0.2s, transform 0.2s;
    flex-shrink: 0;
}
.innova-subcategory-card:hover .innova-subcategory-arrow {
    color: #F5C300;
    transform: translateX(3px);
}

/* 筛选面板 */
.innova-filter-panel {
    background: #fff;
    border-radius: 10px;
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 1px solid #eef0f3;
}
.innova-filter-panel-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #0B1E33;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f0f0f0;
}
.innova-filter-panel .plp-filter-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid #f8f8f8;
}
.innova-filter-panel .plp-filter-row:last-of-type {
    border-bottom: none;
}
.innova-filter-panel .plp-filter-label {
    font-size: 13px;
    color: #666;
    white-space: nowrap;
    padding-top: 5px;
    min-width: 80px;
    flex-shrink: 0;
    font-weight: 600;
}
.innova-filter-panel .plp-filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.innova-filter-panel .plp-filter-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border: 1px solid #e0e4e8;
    border-radius: 20px;
    font-size: 13px;
    color: #444;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    background: #fafbfc;
}
.innova-filter-panel .plp-filter-tag:hover {
    border-color: #F5C300;
    color: #0B1E33;
    background: #fffdf0;
}
.innova-filter-panel .plp-filter-tag.active {
    background: #F5C300;
    color: #0B1E33;
    border-color: #F5C300;
    font-weight: 600;
}
.innova-filter-clear {
    font-size: 13px;
    color: #F5C300;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.innova-filter-clear:hover {
    color: #e6b600;
}

/* 工具栏 */
.innova-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
}
.innova-toolbar-count {
    font-weight: 500;
}
.innova-sort-select {
    padding: 8px 14px;
    border: 1px solid #e0e4e8;
    border-radius: 8px;
    font-size: 13px;
    background: #fff;
    color: #333;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}
.innova-sort-select:focus {
    border-color: #F5C300;
}

/* 空状态 */
.innova-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    background: #fff;
    border-radius: 12px;
    border: 1px dashed #e0e4e8;
}
.innova-empty-state p {
    color: #666;
    font-size: 18px;
    font-weight: 600;
    margin: 16px 0 8px;
}
.innova-empty-state span {
    color: #999;
    font-size: 14px;
}

/* 分页 */
.innova-pagination {
    margin-top: 36px;
    display: flex;
    justify-content: center;
}

/* 响应式 */
@media (max-width: 992px) {
    .innova-plp-layout {
        grid-template-columns: 1fr;
    }
    .innova-filter-sidebar {
        display: none;
    }
}
@media (max-width: 768px) {
    .innova-category-title {
        font-size: 22px;
    }
    .innova-category-desc {
        font-size: 14px;
    }
    .innova-subcategory-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .innova-subcategory-card {
        padding: 10px 12px;
    }
    .innova-subcategory-img {
        width: 36px;
        height: 36px;
    }
    .innova-filter-panel {
        padding: 14px 16px;
        display: none;
    }
    .innova-toolbar {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
}
@media (max-width: 480px) {
    .innova-subcategory-nav {
        grid-template-columns: 1fr;
    }
}

/* Generator Parts PLP */
.innova-parts-plp .innova-product-grid {
    gap: 20px;
}
.innova-parts-card .innova-parts-card-img {
    aspect-ratio: 1;
    position: relative;
}
.innova-parts-card .innova-parts-card-img img {
    object-fit: contain;
    padding: 12px;
}
.innova-parts-card-tags {
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    z-index: 2;
}
.innova-parts-card-tags .innova-parts-tag-gold,
.innova-parts-card-tags .innova-parts-tag-navy {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.innova-parts-card-tags .innova-parts-tag-gold {
    background: #F5C300;
    color: #0B1E33;
}
.innova-parts-card-tags .innova-parts-tag-navy {
    background: #0B1E33;
    color: #fff;
}
.innova-parts-card-no {
    font-size: 20px;
    font-weight: 800;
    color: #0B1E33;
    line-height: 1.2;
    margin-bottom: 4px;
}
.innova-parts-card-type {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}
.innova-parts-card-params {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: #777;
    line-height: 1.4;
}
.innova-filter-group-muted summary,
.innova-filter-group-muted .innova-filter-group-title {
    color: #999;
    font-size: 12px;
}
.innova-filter-group-muted .innova-filter-check {
    font-size: 12px;
    color: #888;
}
.innova-parts-filter-sidebar .innova-filter-group-muted {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #e8e8e8;
}

/* Switchgear PLP */
.innova-switchgear-plp .innova-product-grid {
    gap: 20px;
}
.innova-switchgear-card .innova-switchgear-card-img {
    aspect-ratio: 16 / 10;
    position: relative;
}
.innova-switchgear-card .innova-switchgear-card-img img {
    object-fit: cover;
}
.innova-switchgear-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: #0B1E33;
    color: #fff;
}
.innova-switchgear-model {
    font-size: 12px;
    font-weight: 700;
    color: #F5C300;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 4px;
}
.innova-switchgear-title {
    font-size: 15px;
    font-weight: 700;
    color: #0B1E33;
    line-height: 1.35;
    margin-bottom: 4px;
}
.innova-switchgear-type {
    font-size: 13px;
    color: #666;
    margin-bottom: 8px;
}
.innova-switchgear-params {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
    font-size: 12px;
    color: #777;
    line-height: 1.4;
}

.innova-genset-apps {
    padding: 24px 0 8px;
    background: #fff;
}
.innova-genset-apps .innova-section-head {
    margin-bottom: 16px;
}
.innova-genset-apps .innova-lead {
    margin-top: 8px;
    color: #666;
    font-size: 15px;
}

/* EPC 9-screen authority hero (Screen 1) */
.innova-sg-epic-authority {
    background: #0B1E33;
    color: #fff;
    padding: 48px 0 56px;
}
.innova-sg-epic-authority-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
    align-items: center;
}
.innova-sg-epic-authority-text h1 {
    font-size: clamp(26px, 3.2vw, 36px);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 12px;
    color: #fff;
}
.innova-sg-hero-h2 {
    font-size: 17px;
    line-height: 1.5;
    color: rgba(255,255,255,0.85);
    margin: 0 0 14px;
}
.innova-sg-hero-tagline {
    font-size: 15px;
    font-weight: 600;
    color: #F5C300;
    margin: 0 0 16px;
    line-height: 1.5;
}
.innova-sg-hero-bullets {
    margin: 0 0 24px;
    padding: 0;
    list-style: none;
}
.innova-sg-hero-bullets li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255,255,255,0.78);
}
.innova-sg-hero-bullets li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #F5C300;
    font-weight: 800;
}
.innova-sg-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.innova-sg-hero-actions .btn-outline {
    color: #fff;
    border-color: rgba(255,255,255,0.45);
}
.innova-sg-architecture {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 12px;
    padding: 20px;
}
.innova-sg-architecture h3 {
    font-size: 16px;
    margin: 0 0 14px;
    color: #F5C300;
}
.innova-sg-architecture img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 14px;
    display: block;
}
.innova-sg-arch-steps {
    margin: 0;
    padding-left: 18px;
    color: rgba(255,255,255,0.75);
    font-size: 13px;
    line-height: 1.7;
}
.innova-sg-sticky-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 2px 12px rgba(11,30,51,0.06);
}
.innova-sg-sticky-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    padding: 10px 0;
    font-size: 13px;
}
.innova-sg-sticky-inner a {
    color: #0B1E33;
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
}
.innova-sg-sticky-inner a:hover {
    color: #c9a000;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.innova-sg-sticky-divider {
    width: 1px;
    height: 18px;
    background: #d9dee5;
    margin: 0 4px;
}
.innova-sg-certs,
.innova-sg-markets {
    margin-top: 28px;
    text-align: center;
}
.innova-sg-certs h2,
.innova-sg-markets h2 {
    font-size: 18px;
    margin-bottom: 14px;
    color: #0B1E33;
}
.innova-sg-cert-list,
.innova-sg-market-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 14px;
}
.innova-sg-cert-list span,
.innova-sg-market-list span {
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid #e0e4ea;
    color: #0B1E33;
}

.innova-switchgear-landing {
    padding: 0 0 32px;
    background: #F4F7F9;
}
.innova-switchgear-landing.is-epic {
    padding: 32px 0 40px;
}
.innova-switchgear-epic-tagline {
    max-width: 920px;
    margin: 0 auto 16px;
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.45;
    color: #0B1E33;
}
.innova-switchgear-trust {
    justify-content: center;
    margin-bottom: 28px;
}
.innova-switchgear-epic-block,
.innova-switchgear-epic-split,
.innova-switchgear-products-head {
    margin-top: 32px;
}
.innova-switchgear-epic-block h2,
.innova-switchgear-epic-split h2,
.innova-switchgear-products-head h2 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #0B1E33;
}
.innova-switchgear-epic-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}
.innova-switchgear-spec-block .innova-project-spec-list div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e5e7eb;
}
.innova-switchgear-spec-block .innova-project-spec-list span {
    font-size: 13px;
    color: #666;
}
.innova-switchgear-spec-block .innova-project-spec-list strong {
    text-align: right;
    color: #0B1E33;
}
.innova-switchgear-cap-block .innova-check-list li {
    padding: 8px 0 8px 24px;
    position: relative;
}
.innova-switchgear-cap-block .innova-check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #C9A000;
    font-weight: 700;
}
@media (max-width: 768px) {
    .innova-switchgear-epic-split { grid-template-columns: 1fr; }
    .innova-switchgear-epic-tagline { font-size: 17px; }
}
.innova-switchgear-landing-lead {
    max-width: 820px;
    margin: 0 auto 24px;
    text-align: center;
    font-size: 16px;
    line-height: 1.6;
    color: #666;
}
.innova-switchgear-landing-features {
    margin-bottom: 24px;
}
.innova-switchgear-landing-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}
.innova-switchgear-landing-workflow,
.innova-switchgear-landing-faq {
    margin-top: 32px;
}
.innova-switchgear-landing-workflow h2,
.innova-switchgear-landing-faq h2 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 20px;
    color: #0B1E33;
}
.innova-switchgear-landing-faq .innova-faq-list {
    max-width: 860px;
    margin: 0 auto;
}
.innova-switchgear-landing-faq .innova-faq-item {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    margin-bottom: 12px;
    background: #fff;
}
.innova-switchgear-landing-faq .innova-faq-item summary {
    padding: 14px 18px;
    font-weight: 700;
    cursor: pointer;
    color: #0B1E33;
}
.innova-switchgear-landing-faq .innova-faq-item p {
    padding: 0 18px 14px;
    margin: 0;
    color: #666;
    line-height: 1.6;
}
.innova-switchgear-epic-hero {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 28px;
    align-items: center;
    margin-bottom: 24px;
}
.innova-switchgear-epic-hero-text .innova-switchgear-epic-tagline {
    text-align: left;
    margin: 0 0 12px;
}
.innova-switchgear-landing-lead.is-left {
    text-align: left;
    margin: 0;
}
.innova-switchgear-epic-hero-media img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(11, 30, 51, 0.14);
    display: block;
}
.innova-switchgear-projects,
.innova-switchgear-related,
.innova-switchgear-epic-cta {
    margin-top: 36px;
}
.innova-switchgear-projects h2,
.innova-switchgear-related h2 {
    text-align: center;
    font-size: 22px;
    margin-bottom: 20px;
    color: #0B1E33;
}
.innova-switchgear-project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.innova-switchgear-project-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e5e7eb;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.innova-switchgear-project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(11, 30, 51, 0.12);
    border-color: rgba(245, 195, 0, 0.35);
}
.innova-switchgear-project-img {
    height: 180px;
    overflow: hidden;
}
.innova-switchgear-project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.innova-switchgear-project-body {
    padding: 18px 20px 20px;
}
.innova-switchgear-project-body h3 {
    font-size: 17px;
    margin: 0 0 8px;
    color: #0B1E33;
}
.innova-switchgear-project-body p {
    margin: 0 0 10px;
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}
.innova-switchgear-related-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}
.innova-switchgear-related-links a {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid #d9dee5;
    color: #0B1E33;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: border-color 0.2s, color 0.2s;
}
.innova-switchgear-related-links a:hover {
    border-color: #F5C300;
    color: #c9a000;
}
.innova-switchgear-epic-cta .innova-global-cta {
    border-radius: 12px;
    overflow: hidden;
}
@media (max-width: 768px) {
    .innova-sg-epic-authority-grid { grid-template-columns: 1fr; }
    .innova-sg-sticky-inner { gap: 8px 12px; }
    .innova-sg-sticky-divider { display: none; }
    .innova-switchgear-epic-hero { grid-template-columns: 1fr; }
    .innova-switchgear-epic-hero-text .innova-switchgear-epic-tagline,
    .innova-switchgear-landing-lead.is-left { text-align: center; }
    .innova-switchgear-project-grid { grid-template-columns: 1fr; }
}