/* 自定义样式 */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
}

/* 英雄区 */
.hero-banner {
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
}

.min-vh-75 {
    min-height: 75vh;
}

/* 产品卡片 */
.product-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.2) !important;
}

/* 图片适配 */
.object-fit-cover {
    object-fit: cover;
}

/* 导航栏 */
.navbar {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.site-navbar {
    background-color: #0c2e54 !important;
}

.site-navbar .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
}

.site-navbar .nav-link:hover {
    color: #ffffff !important;
}

.site-navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
}

.site-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.site-brand-text {
    color: #ffffff !important;
}

.navbar-brand {
    font-size: 1.75rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
}

.site-brand-logo {
    height: 58px;
    width: auto;
    margin-right: 12px;
}

.site-brand-text {
    font-weight: 700;
    font-size: 1.8rem;
}

/* 按钮悬停效果 */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* 卡片 */
.card {
    border: none;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.15) !important;
}

/* 页脚 */
footer {
    background-color: #212529 !important;
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: #0d6efd !important;
}

/* 表单 */
.form-control:focus,
.form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* 徽章 */
.badge {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

/* 面包屑 */
.breadcrumb {
    background-color: #f8f9fa;
    border-radius: 0.375rem;
    padding: 0.75rem 1rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .display-4 {
        font-size: 2rem;
    }
    
    .display-5 {
        font-size: 1.5rem;
    }
    
    .hero-banner h1 {
        font-size: 1.75rem;
    }
}

/* 特殊类 */
.bg-primary-light {
    background-color: rgba(13, 110, 253, 0.1);
}

/* Logo红色标题 */
.text-logo-red {
    color: #C41E3A !important;
}

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.text-truncate-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 动画 */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: slideInUp 0.6s ease-out;
}

/* 用户体验优化 */
input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
    font-size: 16px; /* 防止iPhone缩放 */
}

/* 打印样式 */
@media print {
    .navbar,
    footer,
    .btn,
    .no-print {
        display: none;
    }
}

/* SEO 和易用性 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 加载状态 */
.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    vertical-align: -0.125em;
    border: 0.2em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    -webkit-animation: spinner-border 0.75s linear infinite;
    animation: spinner-border 0.75s linear infinite;
}

@-webkit-keyframes spinner-border {
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes spinner-border {
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

.hero-grid {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at top right, rgba(126, 219, 194, 0.18), transparent 28%),
        radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.12), transparent 26%),
        linear-gradient(135deg, #0d2a45 0%, #123c67 45%, #0f675a 100%);
}

.hero-copy {
    max-width: 720px;
}

.hero-eyebrow,
.section-kicker {
    letter-spacing: 0.18em;
    font-weight: 700;
}

.hero-subtitle {
    max-width: 52rem;
    color: rgba(255, 255, 255, 0.84);
}

.hero-panel,
.statement-card,
.quote-panel,
.partner-card,
.advantage-card,
.info-chip,
.hero-mini-card {
    border-radius: 1.25rem;
}

.hero-panel {
    background: rgba(255, 255, 255, 0.94);
    padding: 1.5rem;
    color: #1c2b39;
}

.hero-feature-card {
    padding: 1rem 1.1rem;
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
    border: 1px solid rgba(15, 35, 60, 0.08);
    border-radius: 1rem;
}

.hero-feature-card h5 {
    margin-bottom: 0.35rem;
}

.hero-mini-card {
    display: inline-block;
    background: rgba(255, 255, 255, 0.08);
    padding: 1rem 1.1rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
}

.hero-stat-card {
    height: 100%;
    padding: 1.1rem 1.2rem;
    border-radius: 1.1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stat-value {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.section-kicker {
    color: #0f675a;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.statement-card {
    padding: 1.25rem 1.5rem;
    background: linear-gradient(180deg, #ffffff 0%, #f5f7fa 100%);
    border: 1px solid rgba(13, 42, 69, 0.08);
}

.company-name-block {
    padding: 1.75rem 1.5rem;
    border-radius: 1.4rem;
    background: linear-gradient(180deg, #ffffff 0%, #f5f7fa 100%);
    border: 1px solid rgba(13, 42, 69, 0.08);
}

.company-name-en {
    font-size: 1.05rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #5f6b76;
}

.info-chip {
    height: 100%;
    padding: 1rem 1.1rem;
    background: #f7fbfd;
    border: 1px solid rgba(13, 42, 69, 0.08);
}

.factory-stage {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.factory-image-wrapper {
    overflow: hidden;
    border-radius: 1.5rem;
}

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

.about-visual-stack {
    display: grid;
    grid-template-rows: repeat(2, minmax(280px, 1fr));
    gap: 1rem;
    min-height: 640px;
}

.about-visual-card {
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
    background-size: cover;
    background-position: center;
    box-shadow: 0 18px 45px rgba(13, 42, 69, 0.12);
    min-height: 300px;
}

.about-visual-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.about-visual-content {
    position: absolute;
    inset: auto 0 0 0;
    z-index: 1;
    padding: 1.75rem;
    color: #ffffff;
}

.about-visual-content h3,
.about-visual-content p {
    color: #ffffff;
}

.about-visual-eyebrow {
    display: inline-block;
    margin-bottom: 0.85rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.factory-stage-card {
    position: relative;
    min-height: 240px;
    padding: 1.5rem;
    border-radius: 1.5rem;
    overflow: hidden;
    display: flex;
    align-items: end;
    background:
        linear-gradient(135deg, rgba(9, 24, 38, 0.92), rgba(16, 73, 67, 0.86)),
        linear-gradient(45deg, rgba(255, 255, 255, 0.08), transparent);
    background-size: cover;
    background-position: center;
}

.factory-stage-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.04) 48%, transparent 100%);
    pointer-events: none;
}

.factory-stage-card-main {
    min-height: 360px;
}

.factory-stage-card-sub {
    min-height: 180px;
}

.advantage-card {
    height: 100%;
    padding: 1.4rem;
    background: #ffffff;
    border: 1px solid rgba(13, 42, 69, 0.08);
    box-shadow: 0 18px 45px rgba(13, 42, 69, 0.06);
}

.product-matrix-card,
.product-group-hero {
    position: relative;
    overflow: hidden;
    border-radius: 1.5rem;
    background-size: cover;
    background-position: center;
    color: #ffffff;
    box-shadow: 0 20px 50px rgba(10, 33, 54, 0.14);
}

.product-matrix-card {
    min-height: 500px;
}

.product-group-hero {
    min-height: 100%;
}

.product-matrix-inner,
.product-group-hero-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.75rem;
}

.product-matrix-kicker {
    color: rgba(255, 255, 255, 0.82);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-size: 0.76rem;
    font-weight: 700;
}

.product-matrix-subtitle {
    color: rgba(255, 255, 255, 0.92);
}

.product-matrix-bottom {
    color: rgba(255, 255, 255, 0.88);
}

.product-matrix-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.product-matrix-tags span {
    display: inline-flex;
    align-items: center;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    color: #ffffff;
    font-size: 0.84rem;
}

.product-matrix-count {
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.products-hero {
    max-width: 920px;
}

.product-group-nav {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 1.35rem 1.4rem;
    border-radius: 1.25rem;
    background: #ffffff;
    border: 1px solid rgba(13, 42, 69, 0.08);
    box-shadow: 0 16px 40px rgba(15, 35, 60, 0.05);
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.product-group-nav:hover {
    transform: translateY(-4px);
    box-shadow: 0 22px 48px rgba(15, 35, 60, 0.1);
    border-color: rgba(15, 103, 90, 0.28);
}

.product-group-nav-active {
    border-color: rgba(15, 103, 90, 0.35);
    box-shadow: 0 22px 48px rgba(15, 103, 90, 0.12);
}

.product-group-nav-kicker {
    margin-bottom: 0.55rem;
    color: #0f675a;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.product-group-nav-title {
    margin-bottom: 0.55rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: #10283f;
}

.product-group-nav-text {
    color: #62707c;
    line-height: 1.6;
}

.product-group-section {
    scroll-margin-top: 110px;
}

.group-category-list {
    display: grid;
    gap: 1.25rem;
}

.group-category-item {
    padding-top: 1.1rem;
    border-top: 1px solid rgba(13, 42, 69, 0.08);
}

.group-category-item:first-child {
    padding-top: 0;
    border-top: none;
}

.group-category-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.group-product-card {
    height: 100%;
    overflow: hidden;
    border-radius: 1.15rem;
    background: #f8fafb;
    border: 1px solid rgba(13, 42, 69, 0.08);
}

.group-product-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.group-product-body {
    padding: 1rem 1.05rem 1.1rem;
}

.purpose-item,
.value-stack-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(13, 42, 69, 0.08);
}

.purpose-item:last-child,
.value-stack-item:last-child {
    border-bottom: none;
}

.purpose-icon,
.value-stack-icon {
    width: 3rem;
    height: 3rem;
    flex: 0 0 3rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 103, 90, 0.12);
    color: #0f675a;
    font-size: 1.2rem;
}

.quote-panel {
    height: 100%;
    padding: 2rem;
    background: linear-gradient(135deg, #0f2b46 0%, #134f73 100%);
    color: #fff;
    font-size: 1.2rem;
    line-height: 1.8;
    box-shadow: 0 20px 50px rgba(10, 33, 54, 0.16);
}

.partner-card {
    height: 100%;
    padding: 1.25rem 1rem;
    background: #ffffff;
    border: 1px solid rgba(13, 42, 69, 0.08);
    box-shadow: 0 16px 40px rgba(15, 35, 60, 0.05);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.partner-logo-wrap {
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-logo {
    max-width: 100%;
    max-height: 72px;
    width: auto;
    height: auto;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.88;
    transition: filter 0.25s ease, opacity 0.25s ease, transform 0.25s ease;
}

.partner-card:hover .partner-logo {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.03);
}

.partner-mark {
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 0.04em;
    color: #123c67;
}

.cta-band {
    background: linear-gradient(135deg, #10334f 0%, #0f675a 100%);
}

.about-hero {
    background:
        linear-gradient(135deg, rgba(11, 35, 59, 0.96), rgba(15, 103, 90, 0.9)),
        radial-gradient(circle at right top, rgba(255, 255, 255, 0.08), transparent 35%);
}

.about-highlight {
    padding: 0.75rem 0.85rem;
    background: #f7fbfd;
    border-radius: 1rem;
    height: 100%;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.85rem;
    background: #f7fbfd;
    border-radius: 0.75rem;
    border: 1px solid rgba(13, 42, 69, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    cursor: default;
}

.highlight-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(13, 42, 69, 0.12);
    border-color: rgba(13, 110, 253, 0.3);
}

.highlight-item i {
    flex-shrink: 0;
    margin-top: 2px;
}

.highlight-item h6 {
    font-size: 0.95rem;
    line-height: 1.3;
}

.highlight-item small {
    display: block;
    line-height: 1.4;
}

.value-stack {
    padding: 1.25rem 1.5rem;
    border-radius: 1.25rem;
    border: 1px solid rgba(13, 42, 69, 0.08);
    background: #ffffff;
    box-shadow: 0 16px 40px rgba(15, 35, 60, 0.05);
}

.content-panel,
.mini-feature-card,
.catalog-card,
.scenario-card {
    border-radius: 1.25rem;
    background: #ffffff;
    border: 1px solid rgba(13, 42, 69, 0.08);
    box-shadow: 0 16px 40px rgba(15, 35, 60, 0.05);
}

.content-panel {
    padding: 1.4rem 1.5rem;
}

.mini-feature-card {
    padding: 1.2rem;
}

.catalog-card {
    overflow: hidden;
}

.catalog-card-active {
    border-color: rgba(15, 103, 90, 0.35);
    box-shadow: 0 22px 48px rgba(15, 103, 90, 0.12);
}

.catalog-card-image,
.scenario-card-image {
    min-height: 180px;
    background-size: cover;
    background-position: center;
}

.catalog-card-body,
.scenario-card-body {
    padding: 1.2rem 1.25rem;
}

.spec-preview ul,
.specs-content ul {
    padding-left: 1.2rem;
    margin-bottom: 0;
}

.scenario-card {
    overflow: hidden;
}

.case-hero {
    padding: 1rem 0 0.5rem;
}

.case-highlight-grid {
    align-items: stretch;
}

.case-highlight-card {
    height: 100%;
    padding: 1.5rem 1.2rem;
    border-radius: 1.15rem;
    background: linear-gradient(135deg, #10334f 0%, #0f675a 100%);
    text-align: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    cursor: default;
}

.case-highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(15, 103, 90, 0.35);
}

.case-highlight-value {
    margin-bottom: 0.35rem;
    font-size: 1.2rem;
    font-weight: 800;
    color: #ffffff;
    white-space: nowrap;
    line-height: 1.2;
}

.case-highlight-card .text-muted {
    color: rgba(255, 255, 255, 0.8) !important;
    font-size: 0.85rem;
    line-height: 1.4;
}

.case-study-card {
    overflow: hidden;
    border-radius: 1.5rem;
    background: #ffffff;
    border: 1px solid rgba(13, 42, 69, 0.08);
    box-shadow: 0 20px 50px rgba(10, 33, 54, 0.08);
}

.case-study-media {
    background: linear-gradient(135deg, #e7eef5 0%, #d8e4ee 100%);
}

.case-study-image {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
    display: block;
}

.case-study-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    padding: 2rem 2rem 2.15rem;
}

.case-study-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 1rem;
}

.case-study-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 999px;
    background: rgba(15, 103, 90, 0.12);
    color: #0f675a;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.case-study-tag {
    display: inline-flex;
    align-items: center;
    min-height: 2.25rem;
    padding: 0.45rem 0.95rem;
    border-radius: 999px;
    background: #f2f7fb;
    color: #123c67;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.case-study-points {
    display: grid;
    gap: 0.85rem;
}

.case-study-point {
    position: relative;
    padding-left: 1.25rem;
    color: #4d5a66;
}

.case-study-point::before {
    content: "";
    position: absolute;
    top: 0.62rem;
    left: 0;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 999px;
    background: #0f675a;
}

@media (max-width: 768px) {
    .hero-grid .display-3 {
        font-size: 2.2rem;
    }

    .about-visual-stack {
        min-height: auto;
        grid-template-rows: 1fr;
    }

    .about-visual-card {
        min-height: 260px;
    }

    .quote-panel {
        font-size: 1.05rem;
        padding: 1.5rem;
    }

    .product-matrix-card {
        min-height: 420px;
    }

    .group-product-image {
        height: 200px;
    }

    .case-study-body {
        padding: 1.5rem;
    }

    .case-study-image {
        min-height: 240px;
    }
}

.products-shell {
    padding: 28px 0 80px;
}

.products-wrap {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 15px;
}

.products-breadcrumb {
    margin-bottom: 28px;
    color: #667167;
    font-size: 0.92rem;
}

.products-breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.products-breadcrumb li + li::before {
    content: "/";
    margin-right: 10px;
    color: #92a08f;
}

.products-breadcrumb a {
    color: inherit;
    text-decoration: none;
}

.products-overview-hero,
.group-page-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: 28px;
    margin-bottom: 44px;
    align-items: stretch;
}

.products-overview-main,
.products-overview-side,
.group-page-main,
.group-page-side,
.products-summary-panel,
.group-category-panel,
.products-empty-state {
    border-radius: 28px;
}

.products-overview-main,
.group-page-main {
    padding: 44px 42px;
    display: flex;
    flex-direction: column;
}

.products-overview-side,
.group-page-side {
    padding: 30px;
}

.products-overview-kicker,
.group-page-kicker {
    margin: 0 0 14px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #2c6e2f;
}

.products-overview-main h1,
.group-page-main h1 {
    margin: 0 0 18px;
    font-size: clamp(2.6rem, 5vw, 4.2rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    color: #1e2a1f;
}

.products-overview-copy,
.group-page-copy {
    max-width: 720px;
    margin: 0;
    font-size: 1.06rem;
    line-height: 1.8;
    color: #445046;
}

.products-overview-tags,
.group-page-tags,
.products-summary-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.products-overview-tags {
    margin-top: 26px;
}

.products-overview-tags span,
.group-page-tags span,
.products-summary-tags span {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 999px;
    background: #f1f5ee;
    border: 1px solid #dce3d8;
    color: #324135;
    font-size: 0.94rem;
}

.products-overview-banner {
    margin-top: auto;
    padding-top: 24px;
    flex: 1;
    display: flex;
    align-items: flex-end;
}

.products-overview-banner-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    border-radius: 1rem;
    background: #e8ece6;
}

.products-overview-side,
.group-page-side {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 24px;
}

.products-overview-side h2 {
    margin: 0 0 14px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #2c6e2f;
}

.products-overview-side p,
.group-page-side p,
.products-section-head p,
.products-summary-panel p,
.group-category-panel p,
.products-empty-state p {
    margin: 0;
    color: #667167;
    line-height: 1.75;
}

.products-overview-points {
    display: grid;
    gap: 14px;
    flex: 1;
    align-content: start;
}

.products-overview-point {
    padding: 14px 16px;
    border-radius: 16px;
    background: #eef0e8;
    border: 1px solid #e0e5dc;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    cursor: default;
    text-decoration: none;
    color: inherit;
    display: block;
}

.products-overview-point:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(18, 34, 18, 0.12);
    background: #f5f7f1;
}

.products-overview-tag-link {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 999px;
    background: #f1f5ee;
    border: 1px solid #dce3d8;
    color: #324135;
    font-size: 0.94rem;
    text-decoration: none;
    transition: background 0.2s ease, transform 0.2s ease;
}

.products-overview-tag-link:hover {
    background: #e8ede3;
    transform: translateY(-2px);
}

.products-section {
    margin-bottom: 52px;
}

.products-section-head {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 16px;
    margin-bottom: 24px;
}

.products-section-head h2 {
    margin: 0 0 8px;
    font-size: 2rem;
    line-height: 1.1;
    color: #1e2a1f;
}

.products-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}

.products-category-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100%;
    background: #ffffff;
    border: 1px solid rgba(217, 221, 211, 0.95);
    border-radius: 20px;
    box-shadow: 0 10px 24px rgba(18, 34, 18, 0.08);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.products-category-card h3,
.products-category-card p,
.products-category-card span {
    text-decoration: none;
}

.products-category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 36px rgba(18, 34, 18, 0.14);
    border-color: #cfd6c8;
}

.products-category-media {
    min-height: 200px;
    background: linear-gradient(180deg, #eef1ec 0%, #e7ebe3 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
    overflow: hidden;
}

.products-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.products-category-placeholder {
    max-width: 100%;
    color: #7b857b;
}

.products-category-emoji {
    display: block;
    margin-bottom: 10px;
    font-size: 2.2rem;
    line-height: 1;
}

.products-category-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px 28px;
}

.products-category-body h3 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    line-height: 1.2;
    color: #233023;
    word-break: break-word;
}

.products-category-body p {
    margin: 0 0 24px;
    font-size: 0.95rem;
    line-height: 1.72;
    color: #667167;
    word-break: break-word;
}

.products-category-link {
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #2c6e2f;
    font-weight: 700;
    text-decoration: none;
}

.products-category-card:hover .products-category-link {
    gap: 14px;
    color: #1d5120;
}

.products-summary-stack,
.group-category-list {
    display: grid;
    gap: 22px;
}

.products-summary-panel,
.group-category-panel,
.products-empty-state {
    padding: 28px;
}

.products-summary-panel h3,
.group-category-panel h3,
.products-empty-state h2 {
    margin: 0 0 10px;
    font-size: 1.55rem;
    color: #1e2a1f;
}

.group-category-panel-head {
    display: flex;
    justify-content: space-between;
    align-items: start;
    gap: 16px;
    margin-bottom: 10px;
}

.group-category-panel-head span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    min-height: 2rem;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    background: #eef3eb;
    color: #2c6e2f;
    font-weight: 700;
}

.group-page-stat {
    display: grid;
    gap: 4px;
}

.group-page-stat strong {
    font-size: 2rem;
    line-height: 1;
    color: #1e2a1f;
}

.group-page-stat span {
    color: #667167;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.group-page-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.8rem 1.3rem;
    border-radius: 999px;
    background: #2c6e2f;
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
}

.group-page-cta:hover {
    background: #1d5120;
    color: #ffffff;
}

.products-empty-state {
    text-align: center;
}

@media (max-width: 980px) {
    .products-overview-hero,
    .group-page-hero {
        grid-template-columns: 1fr;
    }

    .products-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .products-shell {
        padding: 18px 0 56px;
    }

    .products-wrap {
        max-width: 960px;
        padding: 0 12px;
    }

    .products-overview-main,
    .products-overview-side,
    .group-page-main,
    .group-page-side,
    .products-summary-panel,
    .group-category-panel,
    .products-empty-state {
        padding: 24px 18px;
    }

    .products-overview-main h1,
    .group-page-main h1 {
        font-size: 2.2rem;
    }

    .products-section-head h2 {
        font-size: 1.7rem;
    }

    .products-card-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .products-category-body h3 {
        font-size: 1.3rem;
    }
}

/* ========================================
   Product Catalog Page Styles
   ======================================== */

.catalog-page {
    min-height: 100vh;
    background: #f8f9fa;
}

.catalog-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: calc(100vh - 80px);
    max-width: 1440px;
    margin: 0 auto;
}

/* Sidebar Navigation */
.catalog-sidebar {
    background: #ffffff;
    border-right: 1px solid #e9ecef;
    padding: 24px 0;
    position: sticky;
    top: 80px;
    height: calc(100vh - 80px);
    overflow-y: auto;
}

.catalog-sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid #e9ecef;
}

.catalog-sidebar-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a2b3c;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.catalog-tree {
    padding: 16px 0;
}

.catalog-tree-group {
    margin-bottom: 4px;
}

.catalog-tree-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.2s ease;
}

.catalog-tree-toggle:hover {
    background: #f5f7fa;
}

.catalog-tree-group.active > .catalog-tree-toggle {
    background: #eef2f7;
}

.catalog-tree-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
    transition: transform 0.3s ease;
}

.catalog-tree-group.active .catalog-tree-icon {
    transform: rotate(90deg);
    color: #10334f;
}

.catalog-tree-name {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 600;
    color: #2c3e50;
}

.catalog-tree-count {
    font-size: 0.8rem;
    color: #6c757d;
    background: #e9ecef;
    padding: 2px 8px;
    border-radius: 10px;
}

.catalog-tree-subcategories {
    list-style: none;
    margin: 0;
    padding: 0;
    display: none;
    background: #fafbfc;
}

.catalog-tree-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 12px 46px;
    color: #5a6c7d;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.catalog-tree-link:hover {
    color: #10334f;
    background: #eef2f7;
}

.catalog-tree-link.active {
    color: #10334f;
    font-weight: 600;
    background: #e8f0f8;
    border-left: 3px solid #10334f;
}

.catalog-tree-subcount {
    font-size: 0.75rem;
    color: #adb5bd;
}

/* Main Content Area */
.catalog-main {
    padding: 32px 40px;
    background: #f8f9fa;
}

.catalog-header {
    margin-bottom: 32px;
}

.catalog-breadcrumb {
    margin-bottom: 16px;
}

.catalog-breadcrumb ol {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.85rem;
}

.catalog-breadcrumb li {
    color: #6c757d;
}

.catalog-breadcrumb li:not(:last-child)::after {
    content: "/";
    margin-left: 8px;
    color: #adb5bd;
}

.catalog-breadcrumb a {
    color: #10334f;
    text-decoration: none;
}

.catalog-breadcrumb a:hover {
    text-decoration: underline;
}

.catalog-header-info h1 {
    margin: 0 0 8px;
    font-size: 2rem;
    font-weight: 700;
    color: #1a2b3c;
}

.catalog-subtitle {
    margin: 0;
    color: #6c757d;
    font-size: 1rem;
}

/* Product Grid */
.catalog-grid-section {
    margin-bottom: 40px;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

/* Product Card */
.product-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: row;
    align-items: stretch;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.product-card-info {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-card-title {
    margin: 0 0 20px;
    font-size: 18px;
    font-weight: 700;
    color: #10334f;
    line-height: 1.4;
}

.product-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #10334f;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
}

.product-card-link:hover {
    color: #0f675a;
}

.product-card-arrow {
    transition: transform 0.3s ease;
}

.product-card-link:hover .product-card-arrow {
    transform: translateX(5px);
}

.product-card-image {
    width: 200px;
    min-width: 200px;
    height: 200px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-placeholder {
    color: #adb5bd;
}

/* Empty State */
.catalog-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
}

.catalog-empty-content {
    color: #6c757d;
}

.catalog-empty-content svg {
    margin-bottom: 16px;
    color: #adb5bd;
}

.catalog-empty-content h2 {
    margin: 0 0 8px;
    color: #2c3e50;
}

.catalog-empty-content p {
    margin: 0 0 20px;
}

.catalog-empty-cta {
    display: inline-block;
    padding: 12px 24px;
    background: #10334f;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.2s ease;
}

.catalog-empty-cta:hover {
    background: #0f675a;
}

/* Responsive */
@media (max-width: 1024px) {
    .catalog-container {
        grid-template-columns: 240px 1fr;
    }

    .catalog-main {
        padding: 24px;
    }
}

@media (max-width: 768px) {
    .catalog-container {
        grid-template-columns: 1fr;
    }

    .catalog-sidebar {
        position: relative;
        top: 0;
        height: auto;
        border-right: none;
        border-bottom: 1px solid #e9ecef;
    }

    .catalog-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .catalog-main {
        padding: 20px;
    }

    .product-card {
        flex-direction: column;
    }

    .product-card-image {
        width: 100%;
        min-width: auto;
        height: 200px;
    }
}

/* ========================================
   Product Detail Page Styles
   ======================================== */

.product-detail {
    background: #ffffff;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.product-detail-title {
    margin: 0 0 32px;
    font-size: 2rem;
    font-weight: 700;
    color: #10334f;
    padding-bottom: 16px;
    border-bottom: 2px solid #e9ecef;
}

.product-detail-hero {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.product-detail-image {
    width: 100%;
    height: 400px;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e9ecef;
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #ffffff;
}

.product-detail-placeholder {
    color: #adb5bd;
}

.product-detail-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.product-detail-section {
    margin-bottom: 0;
}

.product-detail-section h2 {
    margin: 0 0 16px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #10334f;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-detail-section h2::before {
    content: "";
    width: 4px;
    height: 20px;
    background: #0f675a;
    border-radius: 2px;
}

.product-detail-description {
    color: #5a6c7d;
    line-height: 1.8;
    margin: 0;
}

.product-applications {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.product-application-tag {
    display: inline-block;
    padding: 8px 16px;
    background: #eef2f7;
    color: #10334f;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Specifications Table */
.product-specs-section {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 12px;
}

.product-specs-table {
    width: 100%;
    border-collapse: collapse;
}

.product-specs-table th,
.product-specs-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.product-specs-table th {
    width: 200px;
    font-weight: 600;
    color: #5a6c7d;
    background: #ffffff;
}

.product-specs-table td {
    color: #1a2b3c;
    font-weight: 500;
    background: #ffffff;
}

.product-specs-table tr:last-child th,
.product-specs-table tr:last-child td {
    border-bottom: none;
}

/* Application Scenarios */
.product-scenarios-section {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid #e9ecef;
}

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

.product-scenario-card {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.product-scenario-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #10334f;
    border-radius: 50%;
    color: #ffffff;
}

.product-scenario-card h4 {
    margin: 0 0 8px;
    font-size: 1rem;
    font-weight: 600;
    color: #10334f;
}

.product-scenario-card p {
    margin: 0;
    font-size: 0.85rem;
    color: #6c757d;
    line-height: 1.5;
}

/* Related Products */
.related-products-section {
    margin-top: 48px;
    margin-bottom: 32px;
}

.related-products-section h2 {
    margin: 0 0 24px;
    font-size: 1.5rem;
    font-weight: 700;
    color: #10334f;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* Responsive */
@media (max-width: 1024px) {
    .product-detail-hero {
        grid-template-columns: 1fr;
    }

    .product-detail-image {
        height: 300px;
    }

    .product-scenarios {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-detail {
        padding: 20px;
    }

    .product-detail-title {
        font-size: 1.5rem;
    }

    .product-scenarios {
        grid-template-columns: 1fr;
    }

    .related-products-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Solutions Section Styles
   ======================================== */

.solutions-section {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px;
    margin-top: 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.solutions-section h2 {
    margin: 0 0 16px;
    font-size: 1.75rem;
    font-weight: 700;
    color: #10334f;
}

.solutions-intro {
    color: #5a6c7d;
    line-height: 1.8;
    margin: 0 0 32px;
    font-size: 1.05rem;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 24px;
}

.solution-item {
    background: #f8f9fa;
    padding: 24px;
    border-radius: 12px;
    border-left: 4px solid #10334f;
}

.solution-item h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #10334f;
}

.solution-item p {
    margin: 0;
    color: #5a6c7d;
    line-height: 1.7;
    font-size: 0.95rem;
}

.solutions-footer {
    color: #5a6c7d;
    line-height: 1.8;
    margin: 0;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
    font-style: italic;
}

/* ========================================
   Project Support CTA Styles
   ======================================== */

.project-support-cta {
    background: linear-gradient(135deg, #10334f 0%, #0f675a 100%);
    padding: 48px 0;
}

.project-support-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.project-support-text {
    flex: 1;
}

.project-support-kicker {
    margin: 0 0 8px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
}

.project-support-text h3 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.4;
}

.project-support-text p {
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
}

.project-support-action .btn {
    background: #ffffff;
    color: #10334f;
    border: none;
    font-weight: 600;
    padding: 14px 32px;
}

.project-support-action .btn:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 1024px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .solutions-section {
        padding: 24px;
    }

    .project-support-content {
        flex-direction: column;
        text-align: center;
        padding: 0 20px;
    }

    .project-support-action {
        width: 100%;
    }

    .project-support-action .btn {
        width: 100%;
    }
}