/* ============================================
   Nanjing Chechi Technology - Global Styles
   Dark Mode + Glassmorphism Design System
   ============================================ */

/* --- Self-hosted Inter Font --- */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/Inter-Light.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/Inter-Regular.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/Inter-Medium.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/Inter-SemiBold.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/Inter-Bold.woff2') format('woff2');
}

/* --- CSS Variables / Design Tokens --- */
:root {
    --color-primary: #0059A8;
    --color-primary-light: #0070CC;
    --color-secondary: #00D4FF;
    --color-accent: #7B2FBE;
    --color-bg: #0A0E17;
    --color-bg-light: #0F1520;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-surface-strong: rgba(255, 255, 255, 0.08);
    --color-surface-hover: rgba(255, 255, 255, 0.1);
    --color-text: #E8ECF1;
    --color-muted: #8892A4;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.15);
    --color-success: #00E676;
    --color-warning: #FFB300;
    --color-error: #FF5252;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-display: 64px;
    --font-size-h1: 48px;
    --font-size-h2: 36px;
    --font-size-h3: 24px;
    --font-size-body: 16px;
    --font-size-caption: 14px;
    --font-size-button: 15px;

    --container-width: 1400px;
    --section-spacing: 100px;
    --section-spacing-mobile: 60px;
    --grid-gap: 24px;
    --card-padding: 32px;
    --card-radius: 16px;
    --btn-radius: 8px;
    --input-radius: 8px;
    --img-radius: 12px;

    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 16px 48px rgba(0, 89, 168, 0.15);
    --shadow-glow: 0 0 60px rgba(0, 89, 168, 0.2);

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --header-height: 80px;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-body);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    position: relative;
    animation: pageFadeIn 0.3s ease-out;
}

@keyframes pageFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    body {
        animation: none;
    }
}

/* Subtle noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.025;
    pointer-events: none;
    z-index: 9999;
    background-image: url("data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgMjU2IDI1NiIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZmlsdGVyIGlkPSJub2lzZSI+PGZlVHVyYnVsZW5jZSB0eXBlPSJmcmFjdGFsTm9pc2UiIGJhc2VGcmVxdWVuY3k9IjAuOSIgbnVtT2N0YXZlcz0iNCIgc3RpdGNoVGlsZXM9InN0aXRjaCIvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbHRlcj0idXJsKCNub2lzZSkiLz48L3N2Zz4=");
    background-repeat: repeat;
    background-size: 256px 256px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input,
textarea {
    font-family: inherit;
    font-size: inherit;
}

/* --- Container --- */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* --- Typography --- */
h1 {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-h2);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

h3 {
    font-size: var(--font-size-h3);
    font-weight: 600;
    line-height: 1.4;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: var(--font-size-button);
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: var(--btn-radius);
    transition: all var(--transition-normal);
    white-space: nowrap;
    min-height: 48px;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 89, 168, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 89, 168, 0.5);
}

.btn--primary:active {
    transform: translateY(0);
}

.btn--outline {
    border: 1px solid var(--color-border-strong);
    color: var(--color-text);
    background: var(--color-surface);
    backdrop-filter: blur(10px);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-strong);
    transform: translateY(-2px);
}

.btn--submit {
    padding: 16px 48px;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    transition: all var(--transition-normal);
}

.site-header.scrolled {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo-img {
    height: 36px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item a {
    display: block;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 400;
    color: var(--color-muted);
    transition: color var(--transition-fast);
    border-radius: 6px;
}

.nav-item a:hover {
    color: var(--color-text);
}

.nav-item--active a {
    color: var(--color-text);
    font-weight: 500;
}

/* Dropdown */
.nav-item--has-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 260px;
    background: rgba(15, 21, 32, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-card);
}

.nav-item--has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--color-muted);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    color: var(--color-text);
    background: var(--color-surface-strong);
}

.header-cta {
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    background: var(--color-primary);
    border-radius: var(--btn-radius);
    transition: all var(--transition-normal);
}

.header-cta:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 89, 168, 0.4);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.mobile-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: center;
}

.mobile-nav-link {
    display: block;
    padding: 16px 32px;
    font-size: 24px;
    font-weight: 500;
    color: var(--color-muted);
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link--active {
    color: var(--color-text);
}

/* --- Hero Section --- */
.section-hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.hero-carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-slide--active {
    opacity: 1;
}

.hero-slide-bg {
    position: absolute;
    inset: 0;
    background-color: #0a1628;
    background-image: linear-gradient(135deg, #0a1628 0%, #1a2332 50%, #0f1520 100%);
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}

.hero-slide--active .hero-slide-bg {
    transform: scale(1);
}

.hero-slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 14, 23, 0.85) 0%,
        rgba(10, 14, 23, 0.5) 50%,
        rgba(10, 14, 23, 0.7) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: var(--header-height);
}

.hero-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 24px;
    background: rgba(0, 212, 255, 0.05);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero-title {
    font-size: var(--font-size-display);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero-subtitle {
    font-size: 20px;
    font-weight: 300;
    color: var(--color-muted);
    max-width: 560px;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.7s forwards;
}

.hero-actions {
    display: flex;
    gap: 16px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease 0.9s forwards;
}

/* Carousel Controls */
.hero-controls {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 24px;
    z-index: 10;
}

.hero-control-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-strong);
    border-radius: 50%;
    color: var(--color-text);
    background: var(--color-surface);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.hero-control-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-strong);
    transform: scale(1.05);
}

.hero-dots {
    display: flex;
    gap: 8px;
}

.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border-strong);
    transition: all var(--transition-normal);
    padding: 0;
}

.hero-dot--active {
    background: var(--color-primary);
    box-shadow: 0 0 12px rgba(0, 89, 168, 0.5);
    transform: scale(1.2);
}

.hero-dot:hover {
    background: var(--color-primary-light);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    right: 40px;
    z-index: 10;
}

.scroll-indicator-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollPulse 2s ease infinite;
}

/* --- Form Section --- */
.section-form {
    padding: var(--section-spacing) 0;
    position: relative;
}

.form-wrapper {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.form-glow {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 89, 168, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.form-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    padding: 60px;
}

.form-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 24px;
    background: rgba(0, 212, 255, 0.05);
    width: fit-content;
}

.form-title {
    font-size: 40px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.form-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.7;
}

.contact-form {
    display: flex;
    flex-direction: column;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group--full {
    margin-top: 20px;
}

.form-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.form-input {
    padding: 14px 18px;
    font-size: 15px;
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--input-radius);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--color-muted);
    opacity: 0.6;
}

.form-input:focus {
    border-color: var(--color-primary);
    background: rgba(0, 89, 168, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 89, 168, 0.1);
}

.form-input.error {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(255, 82, 82, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 28px;
    gap: 20px;
}

.form-privacy {
    font-size: 13px;
    color: var(--color-muted);
    opacity: 0.7;
}

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    margin-top: 20px;
    background: rgba(0, 230, 118, 0.08);
    border: 1px solid rgba(0, 230, 118, 0.2);
    border-radius: var(--input-radius);
    color: var(--color-success);
    font-size: 15px;
}

.form-success.show {
    display: flex;
}

/* --- Footer --- */
.site-footer {
    padding: 80px 0 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-light);
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-col--brand {
    display: flex;
    flex-direction: column;
}

.footer-logo-link {
    display: inline-flex;
    margin-bottom: 20px;
}

.footer-logo {
    height: 32px;
    width: auto;
}

.footer-brand-desc {
    font-size: 15px;
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 28px;
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-muted);
    background: var(--color-surface);
    transition: all var(--transition-normal);
}

.social-link:hover {
    color: var(--color-text);
    border-color: var(--color-primary);
    background: var(--color-surface-strong);
    transform: translateY(-2px);
}

.footer-heading {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    color: var(--color-text);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 14px;
    color: var(--color-muted);
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-text);
    transform: translateX(4px);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--color-muted);
}

.footer-contact li svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding: 24px 0;
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-muted);
    opacity: 0.6;
}

/* --- Animations --- */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.2);
    }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .container {
        padding: 0 24px;
    }

    .header-inner {
        padding: 0 24px;
    }

    .form-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-spacing: 60px;
        --font-size-display: 40px;
        --font-size-h1: 32px;
        --font-size-h2: 28px;
    }

    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 0 20px;
    }

    .main-nav,
    .header-cta {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--font-size-display);
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-actions {
        flex-direction: column;
        gap: 12px;
    }

    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-controls {
        bottom: 40px;
    }

    .scroll-indicator {
        display: none;
    }

    .form-content {
        padding: 28px 20px;
    }

    .form-title {
        font-size: 28px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .site-footer {
        padding: 48px 0 0;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-display: 32px;
    }

    .hero-tag {
        font-size: 11px;
        padding: 5px 12px;
    }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .hero-slide-bg {
        transform: none;
    }
}

/* --- Focus Styles --- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.hero-dot:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 4px;
}

/* ============================================
   Page Hero Banner (Sub-pages)
   ============================================ */
.page-hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    max-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    margin-top: var(--header-height);
}

.page-hero--short {
    height: 45vh;
    min-height: 320px;
    max-height: 450px;
}

.page-hero-bg {
    position: absolute;
    inset: 0;
    background-color: #0a1628;
    background-image: linear-gradient(135deg, #0a1628 0%, #1a2332 50%, #0f1520 100%);
    background-size: cover;
    background-position: center;
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(10, 14, 23, 0.9) 0%,
        rgba(10, 14, 23, 0.6) 50%,
        rgba(10, 14, 23, 0.8) 100%
    );
}

.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.page-hero-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 20px;
    background: rgba(0, 212, 255, 0.05);
}

.page-hero-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.page-hero-desc {
    font-size: 18px;
    font-weight: 300;
    color: var(--color-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Category Navigation (Products Page)
   ============================================ */
.section-category-nav {
    padding: 30px 0;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-light);
    position: sticky;
    top: var(--header-height);
    z-index: 100;
}

.category-nav-scroll {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-strong) transparent;
}

.category-nav-scroll::-webkit-scrollbar {
    height: 4px;
}

.category-nav-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.category-nav-scroll::-webkit-scrollbar-thumb {
    background: var(--color-border-strong);
    border-radius: 2px;
}

.category-nav-item {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-muted);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    white-space: nowrap;
    transition: all var(--transition-fast);
    background: var(--color-surface);
}

.category-nav-item:hover {
    color: var(--color-text);
    border-color: var(--color-border-strong);
    background: var(--color-surface-strong);
}

.category-nav-item--active {
    color: #fff;
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.category-nav-item--active:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

/* ============================================
   Products Section
   ============================================ */
.section-products {
    padding: var(--section-spacing) 0;
    min-height: 400px;
}

.section-products:empty::before,
.section-scenarios:empty::before {
    content: '';
    display: block;
    height: 200px;
    background: linear-gradient(90deg, var(--color-surface) 25%, var(--color-surface-strong) 50%, var(--color-surface) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--card-radius);
    margin-bottom: 24px;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.product-category {
    margin-bottom: 80px;
}

.product-category:last-child {
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
}

.category-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    opacity: 0.5;
}

.category-info {
    flex: 1;
}

.category-title {
    font-size: var(--font-size-h2);
    font-weight: 600;
    margin-bottom: 12px;
}

.category-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.7;
    max-width: 700px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--grid-gap);
}

.product-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.product-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.product-card-img {
    aspect-ratio: 1/1;
    overflow: hidden;
    background: var(--color-bg-light);
}

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

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

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

.product-card-tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(0, 212, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 12px;
}

.product-card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.product-card-desc {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.product-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-light);
    transition: all var(--transition-fast);
}

.product-card-link:hover {
    color: var(--color-secondary);
    gap: 10px;
}

/* ============================================
   Scenarios Section (Application Scenarios Page)
   ============================================ */
.section-scenarios {
    padding: var(--section-spacing) 0;
}

.scenario-block {
    margin-bottom: 100px;
}

.scenario-block:last-child {
    margin-bottom: 0;
}

.scenario-block-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.scenario-block--reverse .scenario-block-grid {
    direction: rtl;
}

.scenario-block--reverse .scenario-block-grid > * {
    direction: ltr;
}

.scenario-block-img {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.scenario-block-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scenario-block-content {
    padding: 20px 0;
}

.scenario-number {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-light);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.scenario-title {
    font-size: var(--font-size-h2);
    font-weight: 600;
    margin-bottom: 16px;
}

.scenario-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 24px;
}

.scenario-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    list-style: none;
    padding: 0;
}

.scenario-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--color-text);
}

.scenario-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.btn--sm {
    padding: 10px 24px;
    font-size: 14px;
    min-height: 40px;
}

/* ============================================
   Company Profile Section (About Page)
   ============================================ */
.section-company-profile {
    padding: var(--section-spacing) 0;
}

.profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.profile-text h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 24px;
}

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

.profile-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.profile-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary-light);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Section Label */
.section-label {
    display: inline-block;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 20px;
    background: rgba(0, 212, 255, 0.05);
}

/* Section Header Row */
.section-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 48px;
    gap: 40px;
}

.section-header-row h2 {
    margin-bottom: 0;
}

.section-header-desc {
    font-size: 16px;
    color: var(--color-muted);
    max-width: 400px;
    text-align: right;
}

/* ============================================
   Blog & News Section (About Page)
   ============================================ */
.section-blog-news {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--grid-gap);
}

.news-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

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

.news-card-img {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.news-card-date {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border-radius: 6px;
}

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

.news-card-tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(0, 212, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 12px;
}

.news-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-card-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-light);
    transition: all var(--transition-fast);
}

.news-card-link:hover {
    color: var(--color-secondary);
    gap: 10px;
}

/* ============================================
   Download Section (About Page)
   ============================================ */
.section-download {
    padding: var(--section-spacing) 0;
}

.download-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.download-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    transition: all var(--transition-fast);
}

.download-item:hover {
    border-color: var(--color-border-strong);
    background: var(--color-surface-strong);
}

.download-item-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 89, 168, 0.1);
    border-radius: 12px;
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.download-item-info {
    flex: 1;
}

.download-item-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.download-item-meta {
    font-size: 13px;
    color: var(--color-muted);
}

.download-btn {
    flex-shrink: 0;
}

/* ============================================
   Contact Section (Contacts Page)
   ============================================ */
.section-contact {
    padding: var(--section-spacing) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
}

.contact-info-panel {
    position: relative;
    padding: 48px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.contact-info-glow {
    position: absolute;
    top: -30%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 89, 168, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.contact-info-panel h2 {
    position: relative;
    font-size: var(--font-size-h3);
    margin-bottom: 16px;
}

.contact-info-desc {
    position: relative;
    font-size: 15px;
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-details {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-detail-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 89, 168, 0.1);
    border-radius: 10px;
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.contact-detail-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-detail-value {
    font-size: 15px;
    color: var(--color-text);
}

.contact-social {
    position: relative;
    display: flex;
    gap: 12px;
}

.contact-form-panel {
    padding: 48px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
}

.contact-form-panel h3 {
    font-size: var(--font-size-h3);
    margin-bottom: 8px;
}

.contact-form-desc {
    font-size: 15px;
    color: var(--color-muted);
    margin-bottom: 32px;
}

.contact-form--standalone .form-grid {
    grid-template-columns: 1fr 1fr;
}

.form-footer--single {
    justify-content: flex-start;
    margin-top: 24px;
}

/* ============================================
   Responsive - Sub-pages
   ============================================ */
@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .scenario-block-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .scenario-block--reverse .scenario-block-grid {
        direction: ltr;
    }

    .profile-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-header-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-header-desc {
        text-align: left;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-hero {
        height: 50vh;
        min-height: 320px;
    }

    .page-hero-title {
        font-size: 28px;
    }

    .page-hero-desc {
        font-size: 15px;
    }

    .category-header {
        flex-direction: column;
        gap: 12px;
    }

    .category-number {
        font-size: 32px;
    }

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

    .scenario-block {
        margin-bottom: 60px;
    }

    .profile-stats {
        flex-wrap: wrap;
        gap: 24px;
    }

    .stat-value {
        font-size: 28px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .download-item {
        flex-direction: column;
        text-align: center;
    }

    .download-item-info {
        text-align: center;
    }

    .contact-info-panel,
    .contact-form-panel {
        padding: 32px 24px;
    }

    .contact-form--standalone .form-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .category-nav-item {
        padding: 8px 16px;
        font-size: 13px;
    }
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb-bar {
    padding: 100px 0 20px;
    border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--color-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.breadcrumb-sep {
    color: var(--color-muted);
}

.breadcrumb-current {
    color: var(--color-text);
    font-weight: 500;
}

/* Section Title Center */
.section-title-center {
    text-align: center;
    font-size: var(--font-size-h2);
    margin-bottom: 48px;
}

/* ============================================
   Product Detail Hero
   ============================================ */
.product-detail-hero {
    padding: 60px 0;
}

.product-detail-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-detail-gallery {
    position: sticky;
    top: 100px;
}

.product-detail-main-img {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 1/1;
    margin-bottom: 16px;
}

.product-detail-main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-thumbs {
    display: flex;
    gap: 12px;
}

.product-thumb {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0;
    background: none;
    transition: border-color var(--transition-fast);
}

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

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

.product-detail-info {
    padding-top: 20px;
}

.product-detail-category {
    display: inline-block;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 20px;
    background: rgba(0, 212, 255, 0.05);
}

.product-detail-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.product-detail-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}

.product-detail-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 32px;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
}

.highlight-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.highlight-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-light);
}

.highlight-label {
    font-size: 12px;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-detail-actions {
    display: flex;
    gap: 16px;
}

/* ============================================
   Product Content Section
   ============================================ */
.section-product-content {
    padding: var(--section-spacing) 0;
}

.product-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-content-text h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 24px;
}

.product-content-text h3 {
    font-size: var(--font-size-h3);
    margin-top: 32px;
    margin-bottom: 16px;
}

.product-content-text p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--color-muted);
    line-height: 1.7;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--color-primary-light);
    border-radius: 50%;
}

.product-content-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 1/1;
}

.product-content-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   Specifications Section
   ============================================ */
.section-specs {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.specs-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

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

.specs-table tr {
    border-bottom: 1px solid var(--color-border);
}

.specs-table tr:last-child {
    border-bottom: none;
}

.specs-table td {
    padding: 16px 0;
    font-size: 15px;
}

.spec-label {
    width: 40%;
    font-weight: 600;
    color: var(--color-text);
}

.specs-table td:last-child {
    color: var(--color-muted);
}

/* ============================================
   Video Section
   ============================================ */
.section-video {
    padding: var(--section-spacing) 0;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
}

.video-placeholder {
    aspect-ratio: 16/9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    color: var(--color-muted);
}

.video-placeholder svg {
    opacity: 0.5;
}

/* ============================================
   Related Products Section
   ============================================ */
.section-related,
.section-recommended {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
}

.related-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.related-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.related-card-img {
    aspect-ratio: 1/1;
    overflow: hidden;
}

.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

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

.related-card-tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(0, 212, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 8px;
}

.related-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

/* ============================================
   CTA Section
   ============================================ */
.section-cta {
    padding: var(--section-spacing) 0;
}

.cta-panel {
    position: relative;
    padding: 80px 60px;
    background: linear-gradient(135deg, rgba(0, 89, 168, 0.1) 0%, rgba(0, 212, 255, 0.05) 100%);
    border: 1px solid rgba(0, 89, 168, 0.2);
    border-radius: var(--card-radius);
    text-align: center;
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 89, 168, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
}

.cta-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 16px;
    color: var(--color-muted);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Scenario Detail Hero
   ============================================ */
.scenario-detail-hero {
    padding: 60px 0;
}

.scenario-detail-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.scenario-detail-content {
    padding-top: 20px;
}

.scenario-detail-tag {
    display: inline-block;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 20px;
    background: rgba(0, 212, 255, 0.05);
}

.scenario-detail-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.scenario-detail-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}

.scenario-detail-gallery {
    position: sticky;
    top: 100px;
}

.scenario-detail-main-img {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    margin-bottom: 16px;
}

.scenario-detail-main-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scenario-detail-thumbs {
    display: flex;
    gap: 12px;
}

.scenario-thumb {
    width: 100px !important;
    height: 75px !important;
    max-height: 75px !important;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0 !important;
    margin: 0 !important;
    background: none;
    transition: border-color var(--transition-fast);
    flex-shrink: 0;
    box-sizing: border-box;
    line-height: 0;
}

.scenario-thumb img {
    width: 100% !important;
    height: 100% !important;
    max-height: 75px !important;
    object-fit: cover;
    display: block;
    vertical-align: top;
}

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

/* ============================================
   Scenario Content Section
   ============================================ */
.section-scenario-content {
    padding: var(--section-spacing) 0;
}

.scenario-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.scenario-content-text h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 24px;
}

.scenario-content-text h3 {
    font-size: var(--font-size-h3);
    margin-top: 32px;
    margin-bottom: 16px;
}

.scenario-content-text p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

.scenario-content-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.scenario-content-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   News Detail Page
   ============================================ */
.news-detail-hero {
    padding: 60px 0;
}

.news-detail-hero-inner {
    max-width: 800px;
    margin-bottom: 40px;
}

.news-detail-tag {
    display: inline-block;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-secondary);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    margin-bottom: 16px;
    background: rgba(0, 212, 255, 0.05);
}

.news-detail-date {
    display: block;
    font-size: 14px;
    color: var(--color-muted);
    margin-bottom: 16px;
}

.news-detail-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
}

.news-detail-summary {
    font-size: 18px;
    color: var(--color-muted);
    line-height: 1.7;
}

.news-detail-hero-img {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.news-detail-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.section-news-content {
    padding: var(--section-spacing) 0;
}

.news-content-wrapper {
    max-width: 800px;
}

.news-content-wrapper p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.9;
    margin-bottom: 24px;
}

.section-news-nav {
    padding: 40px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.news-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.news-nav-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    border-radius: var(--card-radius);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: border-color var(--transition-fast), background var(--transition-fast);
    text-decoration: none;
}

.news-nav-card:hover {
    border-color: var(--color-primary-light);
    background: rgba(0, 212, 255, 0.03);
}

.news-nav-card--next {
    text-align: right;
}

.news-nav-label {
    font-size: 12px;
    color: var(--color-primary-light);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.news-nav-title {
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    line-height: 1.5;
}

.section-related-news {
    padding: var(--section-spacing) 0;
}

/* ============================================
   Responsive - Detail Pages
   ============================================ */
@media (max-width: 1024px) {
    .product-detail-hero-grid,
    .scenario-detail-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-detail-gallery,
    .scenario-detail-gallery {
        position: static;
    }

    .product-content-grid,
    .scenario-content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

    .news-nav-grid {
        grid-template-columns: 1fr;
    }
}

    .product-detail-gallery,
    .scenario-detail-gallery {
        position: static;
    }

    .product-content-grid,
    .scenario-content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

@media (max-width: 768px) {
    .product-detail-title,
    .scenario-detail-title {
        font-size: 28px;
    }

    .product-detail-actions {
        flex-direction: column;
    }

    .product-detail-actions .btn {
        text-align: center;
    }

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

    .cta-panel {
        padding: 48px 24px;
    }

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

@media (max-width: 480px) {
    .product-detail-thumbs,
    .scenario-detail-thumbs {
        gap: 8px;
    }

    .product-thumb {
        width: 60px;
        height: 45px;
    }

    .scenario-thumb {
        width: 80px;
        height: 60px;
    }
}

/* ============================================
   Why Choose CHECHI Section (Home)
   ============================================ */
.section-why-choose {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.why-choose-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-choose-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 20px;
}

.why-choose-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.why-choose-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.why-choose-features li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 16px;
    color: var(--color-text);
}

.why-choose-features li svg {
    flex-shrink: 0;
    color: var(--color-success);
}

.why-choose-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.why-choose-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   Applications Section (Home)
   ============================================ */
.section-applications {
    padding: var(--section-spacing) 0;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--grid-gap);
    margin-bottom: 48px;
}

.app-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

.app-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.app-card-img {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.app-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

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

.app-card-body h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.3;
}

.app-card-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.5;
}

.section-cta {
    text-align: center;
}

/* ============================================
   Featured Products Section (Home)
   ============================================ */
.section-featured-products {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.featured-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--grid-gap);
    margin-bottom: 48px;
}

.featured-product-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

.featured-product-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.featured-product-img {
    aspect-ratio: 1/1;
    overflow: hidden;
    background: var(--color-bg);
}

.featured-product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.featured-product-body {
    padding: 24px;
}

.featured-product-tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(0, 212, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 12px;
}

.featured-product-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.3;
}

.featured-product-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.5;
    margin-bottom: 16px;
}

.featured-product-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-light);
    transition: all var(--transition-fast);
}

.featured-product-link:hover {
    color: var(--color-secondary);
    gap: 10px;
}

/* ============================================
   Global Service, Stats & Certificates (Home)
   ============================================ */
.section-global-service {
    padding: var(--section-spacing) 0;
}

.global-service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 60px;
}

.global-service-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 20px;
    line-height: 1.25;
}

.global-service-content h2 strong {
    color: var(--color-primary-light);
}

.global-service-desc {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
}

.global-service-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.global-service-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Stats Bar */
.stats-bar {
    background: var(--color-primary);
    padding: 48px 0;
    margin: 0 0 80px;
}

.stats-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.stats-grid .stat-item {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stats-grid .stat-value {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
    line-height: 1;
}

.stats-grid .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.25);
    flex-shrink: 0;
}

/* Certificates Stacked */
.certificates-stacked-wrapper {
    text-align: center;
    padding-top: 60px;
}

.certificates-stacked-header {
    margin-bottom: 40px;
}

.certificates-stacked-header h2 {
    font-size: var(--font-size-h2);
}

.certificates-stacked {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0 40px;
}

.certificates-stacked img {
    max-width: 100%;
    height: auto;
    border-radius: var(--img-radius);
}

/* ============================================
   Responsive - Global Service Section
   ============================================ */
@media (max-width: 1024px) {
    .global-service-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .global-service-visual {
        order: -1;
    }

    .stats-grid {
        flex-wrap: wrap;
        gap: 32px;
    }

    .stat-divider {
        display: none;
    }

    .stats-grid .stat-item {
        flex: 0 0 calc(50% - 16px);
    }
}

@media (max-width: 768px) {
    .stats-bar {
        padding: 32px 0;
        margin: 40px 0;
    }

    .stats-grid .stat-value {
        font-size: 32px;
    }

    .stats-grid .stat-item {
        flex: 0 0 100%;
    }
}

/* ============================================
   About Us - Our Story Section
   ============================================ */
.section-about-story {
    padding: var(--section-spacing) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.about-story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-story-visual {
    position: relative;
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.about-story-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-story-video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(10, 14, 23, 0.4);
    transition: background var(--transition-normal);
}

.about-story-video-placeholder:hover {
    background: rgba(10, 14, 23, 0.2);
}

.video-play-btn {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 89, 168, 0.8);
    border-radius: 50%;
    color: #fff;
    transition: all var(--transition-normal);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.video-play-btn:hover {
    background: var(--color-primary);
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.6);
}

.video-label {
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    letter-spacing: 1px;
}

.about-story-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 24px;
}

.about-story-content p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 16px;
}

/* ============================================
   About Us - Contact Sales Section
   ============================================ */
.section-about-contact {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.about-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-contact-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 20px;
}

.about-contact-content > p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-contact-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.about-contact-features li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 16px;
    color: var(--color-text);
}

.about-contact-features li svg {
    flex-shrink: 0;
    color: var(--color-primary-light);
}

.about-contact-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.about-contact-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   About Us - Become a Partner Section
   ============================================ */
.section-about-partner {
    padding: var(--section-spacing) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.about-partner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-partner-visual {
    border-radius: var(--img-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.about-partner-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-partner-content h2 {
    font-size: var(--font-size-h2);
    margin-bottom: 20px;
}

.about-partner-content > p {
    font-size: 16px;
    color: var(--color-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about-partner-benefits {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.about-partner-benefits li {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 16px;
    color: var(--color-text);
}

.about-partner-benefits li svg {
    flex-shrink: 0;
    color: var(--color-success);
}

.section-resources-downloads {
    padding: var(--section-spacing) 0;
    margin-bottom: 60px;
}

.section-resources-downloads .download-list {
    margin-bottom: 0;
}

/* ============================================
   Knowledge Center Section (Resources)
   ============================================ */
.section-knowledge-center {
    padding: var(--section-spacing) 0;
    background: var(--color-bg-light);
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--grid-gap);
}

.knowledge-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

.knowledge-card:hover {
    border-color: var(--color-border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}

.knowledge-card-img {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.knowledge-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.knowledge-card-type {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: var(--color-primary);
    border-radius: 6px;
}

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

.knowledge-card-tag {
    display: inline-block;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-secondary);
    background: rgba(0, 212, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 12px;
}

.knowledge-card-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.knowledge-card-body p {
    font-size: 14px;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.knowledge-card-date {
    font-size: 13px;
    color: var(--color-muted);
    opacity: 0.7;
}

/* ============================================
   FAQ Section (Resources)
   ============================================ */
.section-faq {
    padding: var(--section-spacing) 0;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--card-radius);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item--active {
    border-color: var(--color-primary);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    text-align: left;
    transition: color var(--transition-fast);
    background: none;
    border: none;
    cursor: pointer;
}

.faq-question:hover {
    color: var(--color-primary-light);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform var(--transition-normal);
    color: var(--color-muted);
}

.faq-item--active .faq-icon {
    transform: rotate(180deg);
    color: var(--color-primary-light);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item--active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 24px;
    font-size: 15px;
    color: var(--color-muted);
    line-height: 1.8;
}

/* ============================================
   Responsive - New Sections
   ============================================ */
@media (max-width: 1024px) {
    .why-choose-grid,
    .about-story-grid,
    .about-contact-grid,
    .about-partner-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .applications-grid,
    .featured-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .about-story-visual,
    .about-contact-visual,
    .about-partner-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .applications-grid,
    .featured-products-grid,
    .knowledge-grid {
        grid-template-columns: 1fr;
    }

    .section-about-story,
    .section-about-contact,
    .section-about-partner {
        min-height: auto;
    }

    .faq-question {
        font-size: 15px;
        padding: 20px;
    }

    .faq-answer p {
        padding: 0 20px 20px;
    }
}

/* Scenario Row - Alternating Layout */
.scenario-row {
    display: flex;
    align-items: center;
    gap: 60px;
    padding: 80px 0;
    max-width: 1200px;
    margin: 0 auto;
}

.scenario-row--reversed {
    flex-direction: row-reverse;
}

.scenario-row-image {
    flex: 1;
    min-width: 0;
}

.scenario-row-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
}

.scenario-row-content {
    flex: 1;
    min-width: 0;
}



@media (max-width: 768px) {
    .scenario-row,
    .scenario-row--reversed {
        flex-direction: column;
        gap: 30px;
        padding: 40px 0;
    }
    
    .scenario-row-content .scenario-title {
        font-size: 24px;
    }
}

/* Product Category Section */
.product-category-section {
    padding: 80px 40px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.product-category-header {
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.product-category-header .category-number {
    display: inline-block;
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.3;
    margin-right: 16px;
    vertical-align: middle;
}

.product-category-header .category-title {
    display: inline-block;
    font-size: 32px;
    font-weight: 700;
    margin: 0;
    vertical-align: middle;
}

.product-category-header .category-desc {
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 16px 0 0 0;
    max-width: 600px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--color-card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.product-card-image {
    width: 100%;
    height: 240px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

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

.product-card-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 12px 0;
    line-height: 1.3;
}

.product-card-desc {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0;
}

@media (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .product-category-header .category-number {
        font-size: 36px;
    }
    
    .product-category-header .category-title {
        font-size: 24px;
    }
}