/* ======================================================================
   NGV Precision Sensor — Blue-Tech Design System
   科技蓝主题 | 精致、现代、科技感
   ====================================================================== */

/* --- Design Tokens --- */
:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #93c5fd;
    --blue-400: #60a5fa;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-800: #1e40af;
    --blue-900: #1e3a8a;

    --cyan-400: #22d3ee;
    --cyan-500: #06b6d4;

    --navy-900: #0a1628;
    --navy-800: #0f1d32;
    --navy-700: #162544;
    --navy-600: #1c2d52;

    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    --primary: var(--blue-600);
    --primary-light: var(--blue-500);
    --primary-dark: var(--blue-800);
    --accent: var(--cyan-400);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.15);
    --shadow-glow-lg: 0 0 40px rgba(37, 99, 235, 0.2);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==================== Base ==================== */
body {
    padding-top: 72px;
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
    color: var(--gray-800);
    background: var(--gray-50);
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--blue-200);
    color: var(--blue-900);
}

img {
    image-rendering: auto;
}

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

.section-title {
    font-weight: 800;
    font-size: 2rem;
    letter-spacing: -0.02em;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.section-title-line {
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin: 0 auto 1rem;
}

/* ==================== Navbar ==================== */
.site-navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid rgba(37, 99, 235, 0.08);
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
    transition: all 0.4s var(--ease);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    height: 80px;
}

.site-navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(37, 99, 235, 0.05);
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
    height: 72px;
}

.site-navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.45rem;
    color: var(--primary);
    letter-spacing: -0.01em;
    text-decoration: none;
    transition: color 0.3s var(--ease);
}

.site-navbar .navbar-brand .brand-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.site-navbar .navbar-brand:hover {
    color: var(--blue-800);
}

.site-navbar .navbar-nav {
    gap: 0.5rem;
}

.site-navbar .nav-item {
    margin: 0 0.25rem;
}

.site-navbar .nav-link {
    color: var(--gray-700);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 0.6rem 1.2rem !important;
    border-radius: var(--radius-md);
    transition: all 0.3s var(--ease);
    position: relative;
    letter-spacing: 0.02em;
}

.site-navbar .nav-link:hover {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

.site-navbar .nav-link.active {
    color: var(--primary);
    font-weight: 700;
    background: rgba(37, 99, 235, 0.08);
}

.site-navbar .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px 3px 0 0;
    transition: width 0.3s var(--ease);
    opacity: 0;
}

.site-navbar .nav-link:hover::before,
.site-navbar .nav-link.active::before {
    width: 60%;
    opacity: 1;
}

.site-navbar .nav-link.dropdown-toggle::after {
    display: none !important; /* Hide default bootstrap dropdown arrow */
}

.site-navbar .dropdown-icon {
    font-size: 0.75rem;
    transition: transform 0.3s var(--ease);
    opacity: 0.7;
}

.site-navbar .dropdown:hover .dropdown-icon,
.site-navbar .dropdown-toggle[aria-expanded="true"] .dropdown-icon {
    transform: rotate(180deg);
    opacity: 1;
}

.site-navbar .dropdown-menu {
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,0.5) inset;
    padding: 0.8rem;
    animation: dropdownFadeIn 0.3s var(--ease);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    min-width: 200px;
    margin-top: 0.5rem;
}

.site-navbar .dropdown-item {
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: all 0.25s var(--ease);
    display: flex;
    align-items: center;
    margin-bottom: 2px;
}

.site-navbar .dropdown-item:last-child {
    margin-bottom: 0;
}

.site-navbar .dropdown-item i {
    width: 20px;
    text-align: center;
    transition: transform 0.25s var(--ease);
}

.site-navbar .dropdown-item:hover {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), transparent);
    color: var(--primary);
    transform: translateX(4px);
}

.site-navbar .dropdown-item:hover i {
    transform: scale(1.1);
}

@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(-10px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ==================== Footer ==================== */
.site-footer {
    background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
    color: var(--gray-400);
    padding: 48px 0 24px;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--primary) 50%, transparent 100%);
}

.site-footer::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.footer-heading {
    color: #fff;
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 1.2rem;
    letter-spacing: 0.01em;
}

.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-nav-list li {
    margin-bottom: 2px;
}
.footer-nav-list a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.88rem;
    line-height: 2;
    display: inline-block;
    transition: color 0.2s, padding-left 0.2s;
}
.footer-nav-list a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-contact-list li {
    font-size: 0.88rem;
    line-height: 2.2;
    color: var(--gray-400);
}
.footer-contact-list i {
    color: var(--accent);
    width: 16px;
}

.footer-btns {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.footer-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    border-radius: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}
.footer-btn--primary {
    background: #e85d04;
    color: #fff;
}
.footer-btn--primary:hover {
    background: #c94d02;
    color: #fff;
}
.footer-btn--secondary {
    background: #e85d04;
    color: #fff;
}
.footer-btn--secondary:hover {
    background: #c94d02;
    color: #fff;
}

.footer-qrcode {
    flex-shrink: 0;
    text-align: center;
}
.footer-qrcode-img {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.footer-qrcode-label {
    font-size: 0.78rem;
    color: var(--gray-500);
    margin-top: 6px;
    margin-bottom: 0;
}

.footer-hr {
    border-color: rgba(255, 255, 255, 0.06);
    margin: 2rem 0 1.2rem;
}

.footer-bottom {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ==================== Breadcrumb ==================== */
.page-breadcrumb {
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
    padding: 16px 0;
    margin-bottom: 0;
    border-bottom: 1px solid var(--gray-200);
}

.page-breadcrumb .breadcrumb {
    font-size: 0.88rem;
    margin-bottom: 0;
}

.page-breadcrumb .breadcrumb-item a {
    color: var(--gray-500);
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

.page-breadcrumb .breadcrumb-item a:hover {
    color: var(--primary);
}

.page-breadcrumb .breadcrumb-item.active {
    color: var(--gray-700);
    font-weight: 500;
}

.page-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
    color: var(--gray-300);
}

/* ==================== Sub Nav Tabs ==================== */
.sub-nav-tabs {
    background: #fff;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 72px;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.sub-nav-tabs .nav-pills .nav-link {
    color: var(--gray-500);
    border-radius: 100px;
    padding: 8px 22px;
    margin: 4px;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all 0.3s var(--ease);
    border: 1px solid transparent;
}

.sub-nav-tabs .nav-pills .nav-link.active {
    background: linear-gradient(135deg, var(--primary), var(--blue-500));
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    border-color: transparent;
}

.sub-nav-tabs .nav-pills .nav-link:hover:not(.active) {
    background: var(--blue-50);
    color: var(--primary);
    border-color: var(--blue-200);
}

/* ==================== Hero Section ==================== */
.home-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #1d4ed8 100%);
    margin-top: -72px;
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
    color: #fff;
}

.home-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0MCIgaGVpZ2h0PSI0MCI+CjxwYXRoIGQ9Ik0wIDBoNDB2NDBIMHoiIGZpbGw9Im5vbmUiLz4KPHBhdGggZD0iTTAgMGgxdjQwSDB6TTAgMGg0MHYxSDB6IiBmaWxsPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMDUpIi8+Cjwvc3ZnPg==');
    opacity: 0.5;
    pointer-events: none;
}

.home-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    padding: 4px 16px 4px 4px;
    backdrop-filter: blur(10px);
}

.hero-badge .badge-icon {
    background: var(--accent);
    color: #fff;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    margin-right: 10px;
}

.hero-badge .badge-text {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #fff;
}

.home-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.15;
    color: #fff;
    margin-bottom: 1.5rem;
}

.home-hero-title .text-gradient {
    background: linear-gradient(135deg, var(--cyan-400) 0%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home-hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-top: 1rem;
    max-width: 540px;
}

.hero-stats {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
}

.stat-card {
    text-align: left;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: baseline;
}

.stat-unit {
    font-size: 1rem;
    color: var(--accent);
    margin-left: 2px;
}

.stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
}

.hero-image-wrapper {
    position: relative;
    padding: 20px;
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.4) 0%, transparent 70%);
    z-index: 0;
}

.home-hero .hero-img {
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 2;
    color: var(--gray-900);
    animation: float 6s ease-in-out infinite;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.floating-card.card-1 {
    top: 10%;
    left: -10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 15%;
    right: -5%;
    animation-delay: 3s;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* ==================== Buttons ==================== */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--blue-500));
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.7rem 1.8rem;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s var(--ease);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--blue-700), var(--primary));
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-outline-primary {
    color: var(--primary);
    border: 2px solid var(--blue-200);
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.65rem 1.8rem;
    transition: all 0.3s var(--ease);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
    transform: translateY(-1px);
}

.btn-light {
    background: #fff;
    color: var(--primary);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    padding: 0.7rem 2rem;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
    transition: all 0.3s var(--ease);
}

.btn-light:hover {
    background: var(--blue-50);
    color: var(--blue-700);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ==================== Cards ==================== */
.case-card,
.article-card,
.rd-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    background: #fff;
    box-shadow: var(--shadow-sm);
    transition: all 0.35s var(--ease);
    overflow: hidden;
}

.case-card:hover,
.article-card:hover,
.rd-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(37, 99, 235, 0.08);
    border-color: var(--blue-200);
}

.case-card .card-img-top,
.article-card .card-img-top,
.rd-card .card-img-top {
    transition: transform 0.5s var(--ease);
}

.case-card:hover .card-img-top,
.article-card:hover .card-img-top,
.rd-card:hover .card-img-top {
    transform: scale(1.04);
}

.case-card .card-body,
.article-card .card-body,
.rd-card .card-body {
    padding: 1.2rem 1.4rem;
}

.case-card .card-title,
.article-card .card-title {
    color: var(--gray-800);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 0.4rem;
    transition: color 0.25s var(--ease);
}

.case-card:hover .card-title,
.article-card:hover .card-title {
    color: var(--primary);
}

/* Card image overflow clip */
.case-card .card-img-top,
.article-card .card-img-top,
.rd-card .card-img-top {
    overflow: hidden;
}

.card-img-top {
    overflow: hidden;
}

/* ==================== Products Page ==================== */
.products-banner {
    position: relative;
    height: 400px;
    overflow: hidden;
    display: flex;
    align-items: center;
}
.products-banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 0.6s var(--ease);
}
.products-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,22,40,0.80) 0%, rgba(37,99,235,0.55) 100%);
}
.products-banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
}
.products-banner-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}
.products-banner-content p {
    font-size: 1.1rem;
    opacity: 0.85;
}

.products-cat-tabs {
    background: #fff;
    border-bottom: 2px solid var(--gray-100);
    padding: 20px 0;
}
.products-cat-tabs .nav-pills {
    gap: 0.75rem;
}
.products-cat-tabs .nav-link {
    color: var(--gray-600);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 8px 24px;
    border-radius: 30px;
    border: 1.5px solid var(--gray-200);
    transition: all 0.2s var(--ease);
    white-space: nowrap;
}
.products-cat-tabs .nav-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--blue-50);
}
.products-cat-tabs .nav-link.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.products-series-section {
    padding: 72px 0;
}
.products-series-section--light {
    background: var(--gray-50);
}
.products-series-section--white {
    background: #fff;
}
.products-series-img-wrap {
    overflow: hidden;
    border-radius: var(--radius-lg);
}
.products-series-img-wrap img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}
.products-series-img-wrap:hover img {
    transform: scale(1.04);
}
.products-series-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 0.75rem;
}
.products-series-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 48px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}
.products-series-bullets {
    list-style: none;
    padding: 0;
    margin: 0 0 0.5rem;
}
.products-series-bullets li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 0.6rem;
    color: var(--gray-700);
    font-size: 0.95rem;
    line-height: 1.7;
}
.products-series-bullets li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
}
.btn-primary-custom {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.25s var(--ease);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-primary-custom:hover {
    background: var(--blue-700);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(37,99,235,0.3);
}

/* ==================== Product Series Detail Page ==================== */
.psd-banner {
    position: relative;
    height: 320px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    padding-bottom: 48px;
}
.psd-banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}
.psd-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(5,10,20,0.82) 40%, rgba(5,10,20,0.45));
}
.psd-banner-content {
    position: relative;
    z-index: 1;
    color: #fff;
}
.psd-banner-content h1 {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.psd-cat-tabs {
    background: #fff;
    border-bottom: 2px solid var(--gray-100);
    padding: 0;
}
.psd-cat-tabs .nav {
    gap: 0;
}
.psd-cat-link {
    display: block;
    padding: 14px 28px;
    color: var(--gray-600);
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}
.psd-cat-link:hover {
    color: var(--primary);
    background: var(--blue-50);
}
.psd-cat-link--active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    font-weight: 700;
}

.psd-series-title-bar {
    padding: 32px 0 20px;
    background: #fff;
}
.psd-series-h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--gray-900);
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}
.psd-series-h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

/* Filter box */
.psd-filter-box {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    background: #fafafa;
    margin-bottom: 20px;
}
.psd-filter-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 0;
}
.psd-filter-row + .psd-filter-row {
    border-top: 1px solid var(--gray-100);
}
.psd-filter-row--center {
    justify-content: center;
    padding-top: 12px;
}
.psd-filter-label {
    background: #e85d04;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
}
.psd-filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.psd-tag {
    display: inline-block;
    padding: 4px 14px;
    border: 1px solid var(--gray-300);
    border-radius: 20px;
    font-size: 0.82rem;
    color: var(--gray-600);
    text-decoration: none;
    transition: all 0.15s;
}
.psd-tag:hover {
    border-color: #e85d04;
    color: #e85d04;
}
.psd-tag--active {
    background: #e85d04;
    border-color: #e85d04;
    color: #fff;
}
.psd-filter-select {
    height: 32px;
    padding: 0 10px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--gray-600);
    min-width: 120px;
}
.psd-btn-query {
    background: #e85d04;
    color: #fff;
    border: none;
    padding: 7px 28px;
    border-radius: 4px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.psd-btn-query:hover { background: #c94d02; }
.psd-btn-reset {
    background: #fff;
    color: var(--gray-600);
    border: 1px solid var(--gray-300);
    padding: 7px 28px;
    border-radius: 4px;
    font-size: 0.88rem;
    cursor: pointer;
    transition: all 0.2s;
}
.psd-btn-reset:hover { border-color: var(--gray-500); color: var(--gray-800); }

/* Product spec table */
.psd-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    min-width: 960px;
}
.psd-table thead tr {
    background: #e85d04;
    color: #fff;
}
.psd-table thead th {
    padding: 10px 8px;
    text-align: center;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid rgba(255,255,255,0.2);
}
.psd-table tbody tr {
    border-bottom: 1px solid var(--gray-200);
}
.psd-table tbody tr:hover {
    background: var(--blue-50);
}
.psd-table tbody td {
    padding: 10px 8px;
    text-align: center;
    vertical-align: middle;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}
.psd-table-model a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}
.psd-table-model a:hover { text-decoration: underline; }
.psd-table-img img {
    width: 52px;
    height: 52px;
    object-fit: contain;
    border-radius: 4px;
    border: 1px solid var(--gray-200);
}

.psd-btn-trial {
    background: #1e293b;
    color: #fff;
    padding: 12px 48px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    border: none;
    transition: background 0.2s;
}
.psd-btn-trial:hover {
    background: #0f172a;
    color: #fff;
}

/* ==================== Product Cards ==================== */

.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.4s var(--ease);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--blue-200);
}

.product-card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

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

.product-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

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

.product-card-body {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.product-card-desc {
    color: var(--gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.product-card-footer {
    border-top: 1px solid var(--gray-100);
    padding-top: 1rem;
    margin-top: auto;
}

.product-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: color 0.2s var(--ease);
}

.product-link i {
    transition: transform 0.2s var(--ease);
}

.product-link:hover {
    color: var(--blue-800);
}

.product-link:hover i {
    transform: translateX(4px);
}

/* ==================== Case Cards ==================== */
.case-img-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    aspect-ratio: 16/10;
}

.case-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.case-card:hover .case-img-wrapper img {
    transform: scale(1.08);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.8) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.case-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transform: translateY(20px);
    transition: all 0.3s var(--ease);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
}

.case-card:hover .case-icon {
    transform: translateY(0);
}

.bg-light-blue {
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
}

.text-primary-light {
    color: var(--blue-300);
}

.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;
}

/* ==================== Product Table ==================== */
.product-table {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.product-table th {
    white-space: nowrap;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.product-table td {
    font-size: 0.9rem;
    vertical-align: middle;
    color: var(--gray-600);
}

.product-table thead.table-dark {
    background: linear-gradient(135deg, var(--navy-800), var(--navy-700)) !important;
}

.product-table thead.table-dark th {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.1);
}

.product-table tbody tr {
    transition: background 0.2s var(--ease);
}

.product-table tbody tr:hover {
    background: var(--blue-50);
}

/* ==================== Article Detail ==================== */
.article-detail .article-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.article-detail .article-meta {
    font-size: 0.88rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-500);
}

.article-detail .article-meta i {
    color: var(--primary);
}

.article-detail .article-content {
    line-height: 1.9;
    font-size: 1.02rem;
    color: var(--gray-700);
}

.article-detail .article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin: 1rem 0;
}

.article-detail .article-content h2,
.article-detail .article-content h3 {
    color: var(--gray-900);
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

/* ==================== Sidebar ==================== */
.sidebar-widget {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow-sm);
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--primary), var(--accent)) 1;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.related-item {
    padding: 10px 0;
    border-bottom: 1px solid var(--gray-100);
    transition: all 0.25s var(--ease);
    border-radius: var(--radius-sm);
}

.related-item:last-child {
    border-bottom: none;
}

.related-item:hover {
    background: var(--blue-50);
    padding-left: 8px;
}

.related-item h6 {
    font-size: 0.9rem;
    margin-bottom: 4px;
    font-weight: 600;
    color: var(--gray-700);
    transition: color 0.2s var(--ease);
}

.related-item:hover h6 {
    color: var(--primary);
}

/* ==================== CTA Section ==================== */
.section-cta {
    background: linear-gradient(135deg, var(--navy-900) 0%, var(--blue-900) 50%, var(--primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.5;
}

.section-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.section-cta::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-btn {
    transition: all 0.3s var(--ease);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* ==================== About / Company ==================== */
.section-badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--blue-50);
    padding: 6px 16px;
    border-radius: 100px;
    border: 1px solid var(--blue-100);
}

.feature-icon-box {
    width: 48px;
    height: 48px;
    background: var(--blue-50);
    color: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: inset 0 0 0 1px var(--blue-100);
}

.about-img-wrapper {
    position: relative;
    padding: 20px 20px 20px 0;
}

.about-shape-1 {
    position: absolute;
    top: 0;
    right: 0;
    width: 80%;
    height: 80%;
    background: var(--blue-50);
    border-radius: var(--radius-xl);
    z-index: 0;
}

.about-shape-2 {
    position: absolute;
    bottom: 0;
    left: -20px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, var(--accent) 10%, transparent 11%);
    background-size: 15px 15px;
    z-index: 2;
    opacity: 0.5;
}

.experience-badge {
    position: absolute;
    bottom: 40px;
    right: -20px;
    background: #fff;
    padding: 20px 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--gray-100);
}

.exp-num {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    display: flex;
    align-items: flex-start;
}

.exp-plus {
    font-size: 1.5rem;
    color: var(--accent);
}

.exp-text {
    font-size: 0.9rem;
    color: var(--gray-600);
    font-weight: 600;
    margin-top: 5px;
}

/* ==================== Timeline ==================== */
.timeline {
    position: relative;
    padding: 30px 0 30px 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary), var(--accent), var(--primary));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
    display: flex;
}

.timeline-marker {
    position: absolute;
    left: -48px;
    top: 6px;
    width: 18px;
    height: 18px;
    background: #fff;
    border: 3px solid var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15), var(--shadow-sm);
    z-index: 1;
    transition: all 0.3s var(--ease);
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.2), 0 0 16px rgba(37, 99, 235, 0.3);
}

.timeline-content {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    width: 100%;
    transition: all 0.35s var(--ease);
}

.timeline-item:hover .timeline-content {
    box-shadow: var(--shadow-md);
    border-color: var(--blue-200);
    transform: translateY(-2px);
}

.timeline-year {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.timeline-month {
    font-size: 0.88rem;
    color: var(--gray-400);
    margin-left: 8px;
    font-weight: 500;
}

.timeline-unit {
    font-size: 0.7em;
    font-weight: 500;
    margin-left: 3px;
    opacity: 0.45;
    -webkit-text-fill-color: initial;
    background: none;
}

.timeline-text {
    margin-top: 8px;
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ==================== Certificate Card ==================== */
.cert-card {
    padding: 16px;
    border-radius: var(--radius-lg);
    background: #fff;
    border: 1px solid var(--gray-200);
    transition: all 0.3s var(--ease);
    box-shadow: var(--shadow-sm);
}

.cert-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--blue-200);
}

.cert-card img {
    border-radius: var(--radius-md);
}

.cert-name {
    font-weight: 600;
    color: var(--gray-700);
    margin-top: 8px;
}

/* ==================== Download Table ==================== */
.download-table {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.download-table td {
    vertical-align: middle;
    padding: 1rem;
}

.download-table tbody tr {
    transition: background 0.2s var(--ease);
}

.download-table tbody tr:hover {
    background: var(--blue-50);
}

/* ==================== FAQ Accordion ==================== */
.accordion-item {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md) !important;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s var(--ease);
}

.accordion-item:hover {
    border-color: var(--blue-200);
    box-shadow: var(--shadow-sm);
}

.accordion-button {
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--gray-700);
    padding: 1rem 1.2rem;
    background: #fff;
}

.accordion-button:not(.collapsed) {
    background: linear-gradient(135deg, var(--blue-50), #f0f9ff);
    color: var(--primary);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    border-color: var(--blue-200);
}

.accordion-button::after {
    transition: transform 0.35s var(--ease);
}

.accordion-body {
    color: var(--gray-600);
    line-height: 1.8;
    padding: 1rem 1.2rem 1.2rem;
}

/* ==================== Forms ==================== */
.form-control,
.form-select {
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    color: var(--gray-700);
    transition: all 0.25s var(--ease);
    background: #fff;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-700);
    margin-bottom: 0.4rem;
}

/* Form section headings (Trial page) */
.form-section-title {
    font-weight: 700;
    color: var(--gray-800);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid transparent;
    border-image: linear-gradient(90deg, var(--primary), transparent) 1;
}

/* ==================== Badges ==================== */
.badge.bg-primary {
    background: linear-gradient(135deg, var(--primary), var(--blue-500)) !important;
    font-weight: 600;
    font-size: 0.78rem;
    padding: 0.35em 0.75em;
    border-radius: 100px;
}

.badge.bg-secondary {
    background: var(--gray-200) !important;
    color: var(--gray-600) !important;
    font-weight: 500;
    font-size: 0.78rem;
    padding: 0.35em 0.75em;
    border-radius: 100px;
}

/* ==================== Alerts ==================== */
.alert-success {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 1px solid #6ee7b7;
    color: #065f46;
    border-radius: var(--radius-md);
}

.alert-danger {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fca5a5;
    color: #991b1b;
    border-radius: var(--radius-md);
}

/* ==================== Pagination ==================== */
.pagination .page-link {
    border-radius: var(--radius-sm);
    margin: 0 3px;
    color: var(--primary);
    border: 1px solid var(--gray-200);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem;
    transition: all 0.25s var(--ease);
}

.pagination .page-link:hover {
    background: var(--blue-50);
    border-color: var(--blue-200);
    color: var(--primary);
}

.pagination .page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary), var(--blue-500));
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* ==================== Map ==================== */
.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

/* ==================== Rich Content ==================== */
.rich-content {
    line-height: 1.9;
    font-size: 1.02rem;
    color: var(--gray-700);
}

.rich-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin: 1rem 0;
}

.rich-content h2, .rich-content h3, .rich-content h4 {
    color: var(--gray-900);
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

/* ==================== Empty State ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    color: var(--gray-300);
    margin-bottom: 16px;
}

.empty-state p {
    color: var(--gray-400);
    font-size: 0.95rem;
}

/* ==================== Section Backgrounds ==================== */
.bg-light {
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%) !important;
}

section.section-padding.bg-light {
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--gray-50) 100%) !important;
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s var(--ease) forwards;
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ==================== Responsive ==================== */
@media (max-width: 991px) {
    .section-padding {
        padding: 50px 0;
    }

    .home-hero {
        padding: 60px 0 50px;
    }
}

@media (max-width: 768px) {
    .home-hero-title {
        font-size: 2rem;
    }

    .section-padding {
        padding: 40px 0;
    }

    .case-category-tabs .nav-pills {
        flex-wrap: wrap;
    }

    .sub-nav-tabs {
        top: 60px;
    }

    .sub-nav-tabs .nav-pills {
        flex-wrap: wrap;
    }

    .sub-nav-tabs .nav-pills .nav-link {
        font-size: 0.85rem;
        padding: 6px 16px;
    }

    body {
        padding-top: 60px;
    }

    .site-navbar {
        padding-top: 0.3rem;
        padding-bottom: 0.3rem;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.5rem;
    }

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

    .timeline-content {
        padding: 16px;
    }
}

/* ==================== Service Cards ==================== */
.service-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s var(--ease);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--blue-200);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.4rem;
    color: var(--primary);
}

.service-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.75;
    margin: 0;
}

/* ==================== Why Cards ==================== */
.why-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s var(--ease);
}

.why-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--blue-200);
}

.why-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: #fff;
}

.why-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 12px;
}

.why-desc {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.75;
    margin: 0;
}

/* ==================== Home Product Tabs ==================== */
.home-product-tabs {
    gap: 8px;
    flex-wrap: wrap;
}

.home-product-tab-btn {
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-600);
    background: #fff;
    border: 2px solid var(--gray-200);
    transition: all 0.25s var(--ease);
    white-space: nowrap;
}

.home-product-tab-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--blue-50);
}

.home-product-tab-btn.active {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

/* ==================== About Stats ==================== */
.about-stats {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-stat-item {
    padding: 20px 16px;
    text-align: center;
}

.about-stat-num {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.about-stat-unit {
    font-size: 1rem;
    font-weight: 600;
}

.about-stat-label {
    font-size: 0.82rem;
    color: var(--gray-500);
    margin-top: 4px;
}

/* ==================== Home Industry ==================== */
.home-industry {
    background: #0a1628;
    position: relative;
}

.industry-card {
    display: block;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 240px;
    background-size: cover;
    background-position: center;
    text-decoration: none;
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.industry-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.industry-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10,22,40,0.1) 0%, rgba(10,22,40,0.82) 100%);
    transition: background 0.35s;
}

.industry-card:hover .industry-card-overlay {
    background: linear-gradient(180deg, rgba(37,99,235,0.25) 0%, rgba(10,22,40,0.9) 100%);
}

.industry-card-body {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 18px;
}

.industry-icon {
    font-size: 1.6rem;
    color: rgba(255,255,255,0.9);
    display: block;
    margin-bottom: 8px;
    transition: color 0.3s;
}

.industry-card:hover .industry-icon {
    color: #60a5fa;
}

.industry-title {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 6px 0;
}

.industry-desc {
    color: rgba(255,255,255,0.7);
    font-size: 0.78rem;
    line-height: 1.55;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    transition: max-height 0.35s var(--ease), opacity 0.35s var(--ease);
}

.industry-card:hover .industry-desc {
    max-height: 60px;
    opacity: 1;
}

/* ==================== Service Items (row layout) ==================== */
.service-row-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: #fff;
}

/* ==================== Why Section ==================== */
.home-why-section {
    background: #050d1f url('/asset/image/ngv-why-bg.jpg') center/cover no-repeat;
    position: relative;
    padding: 80px 0;
}

.home-why-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(5, 13, 31, 0.82);
}

.home-why-section .container {
    position: relative;
    z-index: 1;
}

.why-stat-num {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.why-stat-unit {
    font-size: 1.8rem;
}

.why-stat-label {
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    margin-top: 4px;
}

.why-stat-desc {
    font-size: 0.92rem;
    color: rgba(255,255,255,0.75);
    margin-top: 6px;
}

/* ==================== News Cards ==================== */
.news-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s var(--ease);
    background: #fff;
}

.news-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--blue-200);
}

.news-img-wrapper {
    height: 200px;
    overflow: hidden;
    background: var(--gray-100);
}

.news-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--ease);
}

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

.news-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
}

.news-card-body {
    padding: 20px;
}

.news-date {
    font-size: 0.82rem;
    color: var(--gray-400);
    margin-bottom: 8px;
}

.news-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-800);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary {
    font-size: 0.88rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}