/* ========================================
   GUIDEON TECH - Premium B2B Website Styles
   Performance Optimized
   ======================================== */

/* Font Display Optimization - Prevent FOIT */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400 800;
    font-display: swap;
}

/* CSS Variables */
:root {
    --primary: #1E3A8A;
    --primary-dark: #172554;
    --primary-light: #DBEAFE;
    --accent: #F97316;
    --accent-light: #FED7AA;
    --dark: #0F172A;
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --white: #FFFFFF;
    --success: #10B981;
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, #3B82F6 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #FBBF24 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(30, 58, 138, 0.15);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --nav-height: 80px;
    --container-max: 1280px;
    --container-padding: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: var(--nav-height);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--dark);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p { line-height: 1.7; }

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

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    color: var(--gray-500);
    font-size: 1.125rem;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.nav-header.scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-md);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.logo-text span {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    position: relative;
    padding: 10px 16px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: 8px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-search {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: 10px;
    color: var(--gray-700);
    cursor: pointer;
    transition: var(--transition);
}

.nav-search:hover {
    background: var(--gray-200);
    color: var(--primary);
}

.btn-quote {
    padding: 12px 24px;
    background: var(--accent);
    color: white;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 10px;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.btn-quote:hover {
    background: #EA580C;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

/* Language Switcher */
.lang-switcher {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.lang-switcher select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: transparent;
    border: none;
    padding: 10px 28px 10px 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
}

.lang-switcher select:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.lang-switcher select:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.lang-switcher select option {
    background: white;
    color: var(--gray-800);
    padding: 8px;
}

.lang-arrow {
    position: absolute;
    right: 10px;
    pointer-events: none;
    color: var(--gray-500);
    transition: transform 0.2s;
}

.lang-switcher select:focus + .lang-arrow,
.lang-switcher:hover .lang-arrow {
    color: var(--primary);
}

/* RTL Support for Language Switcher */
[dir="rtl"] .lang-switcher select {
    padding: 10px 12px 10px 28px;
}

[dir="rtl"] .lang-arrow {
    right: auto;
    left: 10px;
    transform: rotate(180deg);
}

/* RTL Support for Product Pages */
[dir="rtl"] .product-hero-container {
    direction: rtl;
}

[dir="rtl"] .product-hero-container > div {
    direction: rtl;
}

[dir="rtl"] .product-hero-container img,
[dir="rtl"] .product-hero-container picture {
    direction: ltr;
}

[dir="rtl"] section[style*="grid-template-columns: repeat(3, 1fr)"] {
    direction: rtl;
}

[dir="rtl"] section[style*="grid-template-columns: repeat(3, 1fr)"] > div {
    direction: rtl;
}

/* RTL Support for tables in specs */
[dir="rtl"] section table td:first-child {
    text-align: right;
}

[dir="rtl"] section table td:last-child {
    text-align: left;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 50%, #BFDBFE 100%);
}

.hero-grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(30, 58, 138, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 58, 138, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 0%, transparent 70%);
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 8px;
    background: var(--white);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.badge-dot {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(30, 58, 138, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

.btn-primary svg {
    transition: transform var(--transition);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: transparent;
    color: var(--primary);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    border: 2px solid var(--primary);
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.trust-item {
    display: flex;
    flex-direction: column;
}

.trust-number {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.trust-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.trust-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-200);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: fadeInRight 0.8s ease 0.3s both;
}

.hero-showcase {
    position: relative;
    width: 100%;
    max-width: 420px;
    margin: 0 auto;
}

.showcase-ring {
    position: absolute;
    border: 2px solid rgba(30, 58, 138, 0.08);
    border-radius: 50%;
    animation: rotate 30s linear infinite;
}

.showcase-ring-1 {
    inset: 0;
    animation-duration: 40s;
}

.showcase-ring-2 {
    inset: 12%;
    animation-duration: 35s;
    animation-direction: reverse;
}

.showcase-ring-3 {
    inset: 24%;
    animation-duration: 30s;
}

.showcase-ring::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(30, 58, 138, 0.4);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.showcase-core {
    position: relative;
    width: 160px;
    height: 160px;
    margin: 0 auto;
    background: var(--gradient-primary);
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    animation: float 6s ease-in-out infinite;
}

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

.showcase-label {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    padding: 16px 28px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    white-space: nowrap;
}

.label-title {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.label-model {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-top: 4px;
}

.hero-specs {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--gray-200);
}

.spec-item {
    text-align: center;
}

.spec-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--dark);
}

.spec-unit {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
}

.spec-name {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--gray-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    position: relative;
}

.scroll-dot {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 24px; opacity: 0.3; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ========================================
   WHY CHOOSE US
   ======================================== */
.section-why {
    padding: 120px 0;
    background: var(--white);
}

.why-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.why-content h2 {
    margin-bottom: 16px;
}

.why-intro {
    color: var(--gray-500);
    font-size: 1.125rem;
    margin-bottom: 40px;
}

.why-features {
    display: grid;
    gap: 28px;
}

.why-feature {
    display: flex;
    gap: 20px;
}

.why-feature-icon {
    width: 52px;
    height: 52px;
    background: var(--primary-light);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.why-feature-text h4 {
    margin-bottom: 8px;
}

.why-feature-text p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.why-visual {
    position: relative;
}

.certifications-card {
    background: var(--dark);
    color: white;
    padding: 40px;
    border-radius: 24px;
    margin-bottom: 24px;
}

.certifications-card h4 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.cert-badges {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.cert-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 16px 8px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.cert-badge:hover {
    background: rgba(255, 255, 255, 0.15);
}

.cert-badge svg {
    margin: 0 auto 8px;
    opacity: 0.8;
}

.cert-badge span {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    opacity: 0.9;
}

.cert-note {
    color: var(--gray-400);
    font-size: 0.875rem;
    text-align: center;
}

.stats-card {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stats-card .stat {
    background: var(--gray-100);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
}

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

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   PRODUCTS SECTION
   ======================================== */
.section-products {
    padding: 120px 0;
    background: var(--gray-100);
}

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

.category-card {
    background: var(--white);
    border-radius: 20px;
    padding: 32px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.category-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.category-info h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
}

.category-count {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.category-card > p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.category-list {
    margin-bottom: 20px;
}

.category-list li {
    position: relative;
    padding-left: 16px;
    color: var(--gray-700);
    font-size: 0.875rem;
    margin-bottom: 6px;
    font-weight: 500;
}

.category-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.category-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.category-link svg {
    transition: transform var(--transition);
}

.category-card:hover .category-link svg {
    transform: translateX(4px);
}

.section-cta {
    text-align: center;
    margin-top: 60px;
}

.btn-outline-dark {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: var(--dark);
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid var(--gray-300);
    border-radius: 12px;
    transition: var(--transition);
}

.btn-outline-dark:hover {
    background: var(--dark);
    border-color: var(--dark);
    color: white;
}

/* ========================================
   APPLICATIONS SECTION
   ======================================== */
.section-applications {
    padding: 120px 0;
    background: var(--white);
}

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

.application-card {
    position: relative;
    padding: 36px 28px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 20px;
    transition: var(--transition);
    overflow: hidden;
}

.application-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.application-card:hover {
    transform: translateY(-6px);
    border-color: transparent;
    box-shadow: var(--shadow-lg);
}

.application-card:hover::before {
    transform: scaleX(1);
}

.app-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
    transition: var(--transition);
}

.application-card:hover .app-icon {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.application-card h3 {
    margin-bottom: 12px;
}

.application-card > p {
    color: var(--gray-500);
    font-size: 0.9375rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.app-features {
    margin-bottom: 20px;
}

.app-features li {
    position: relative;
    padding-left: 20px;
    color: var(--gray-700);
    font-size: 0.875rem;
    margin-bottom: 8px;
}

.app-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.app-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.app-link svg {
    transition: transform var(--transition);
}

.application-card:hover .app-link svg {
    transform: translateX(4px);
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.section-testimonials {
    padding: 120px 0;
    background: var(--gray-100);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    background: var(--white);
    padding: 36px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-rating svg {
    color: var(--accent);
}

.testimonial-text {
    color: var(--gray-700);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--dark);
}

.author-role {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ========================================
   CTA BANNER
   ======================================== */
.section-cta-banner {
    padding: 100px 0;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.section-cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-container {
    position: relative;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.cta-content h2 {
    color: white;
    margin-bottom: 12px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
}

.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: white;
    color: var(--primary);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    white-space: nowrap;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 0;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    line-height: 1.8;
    margin-top: 20px;
    margin-bottom: 24px;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-links h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 4px;
}

.footer-contact h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-contact .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--gray-400);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.footer-contact .contact-item svg {
    flex-shrink: 0;
    opacity: 0.6;
    margin-top: 2px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 32px;
}

.footer-legal a {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: white;
}

/* ========================================
   BREADCRUMB NAVIGATION
   ======================================== */
.breadcrumb {
    padding: 20px 0;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
}

.breadcrumb ol {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.875rem;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    color: var(--gray-500);
}

.breadcrumb li:not(:last-child)::after {
    content: "›";
    margin-left: 8px;
    color: var(--gray-400);
}

.breadcrumb a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.breadcrumb li[aria-current="page"] {
    color: var(--gray-700);
    font-weight: 500;
}

/* ========================================
   PRODUCT DETAIL PAGE
   ======================================== */
.product-detail {
    padding: 80px 0;
}

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

.product-detail-image {
    background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
    border-radius: 16px;
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.product-detail-info .section-tag {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.product-detail-info h1 {
    margin-bottom: 8px;
}

.product-subtitle {
    color: var(--gray-500);
    font-size: 1.125rem;
    margin-bottom: 24px;
}

.product-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

.product-features .feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--gray-50);
    border-radius: 8px;
}

.product-features .feature-icon {
    font-size: 1.25rem;
}

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

.product-specs {
    padding: 80px 0;
    background: var(--gray-50);
}

.product-specs h2 {
    text-align: center;
    margin-bottom: 40px;
}

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

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

.specs-table th {
    background: var(--primary);
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

.specs-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
}

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

.specs-table td:first-child {
    font-weight: 500;
    color: var(--gray-700);
    width: 40%;
}

.product-applications {
    padding: 80px 0;
}

.product-applications h2 {
    text-align: center;
    margin-bottom: 40px;
}

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

.application-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.application-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.application-card h3 {
    margin-bottom: 8px;
    font-size: 1.125rem;
}

.application-card p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.related-products {
    padding: 80px 0;
    background: var(--gray-50);
}

.related-products h2 {
    text-align: center;
    margin-bottom: 40px;
}

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

.related-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.related-card img {
    width: 100%;
    max-width: 150px;
    height: auto;
    margin-bottom: 16px;
    object-fit: contain;
}

.related-card h4 {
    margin-bottom: 4px;
    color: var(--primary);
}

.related-card p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ========================================
   PAGE HEADERS (Interior Pages)
   ======================================== */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    text-align: center;
}

.page-header h1 {
    margin-bottom: 16px;
}

.page-header p {
    color: var(--gray-500);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   PRODUCT DETAIL PAGE
   ======================================== */
.product-detail {
    padding: 80px 0;
}

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

.product-gallery {
    position: sticky;
    top: 120px;
}

.product-main-image {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gray-100);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product-main-image svg {
    width: 120px;
    height: 120px;
    color: var(--gray-400);
}

.product-info h1 {
    margin-bottom: 8px;
}

.product-category {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 24px;
}

.product-description {
    color: var(--gray-600);
    font-size: 1.0625rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 32px;
}

.specs-table th,
.specs-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.specs-table th {
    color: var(--gray-500);
    font-weight: 500;
    font-size: 0.875rem;
    width: 40%;
}

.specs-table td {
    color: var(--dark);
    font-weight: 500;
}

.product-features {
    margin-bottom: 32px;
}

.product-features h4 {
    margin-bottom: 16px;
}

.product-features ul {
    display: grid;
    gap: 12px;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--gray-700);
    font-size: 0.9375rem;
}

.product-features li svg {
    flex-shrink: 0;
    color: var(--success);
    margin-top: 2px;
}

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

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--gray-100);
    color: var(--dark);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
}

.btn-download:hover {
    background: var(--gray-200);
}

.btn-request {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--accent);
    color: white;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.btn-request:hover {
    background: #EA580C;
    transform: translateY(-2px);
}

/* ========================================
   CONTACT PAGE
   ======================================== */
.contact-section {
    padding: 100px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    background: var(--dark);
    color: white;
    padding: 48px;
    border-radius: 24px;
}

.contact-info h3 {
    color: white;
    margin-bottom: 32px;
}

.contact-item-block {
    margin-bottom: 32px;
}

.contact-item-block h4 {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.contact-item-block p,
.contact-item-block a {
    color: white;
    font-size: 1rem;
    line-height: 1.6;
}

.contact-item-block a:hover {
    color: var(--accent);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 48px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h3 {
    margin-bottom: 8px;
}

.contact-form-wrapper > p {
    color: var(--gray-500);
    margin-bottom: 32px;
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 10px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-submit {
    margin-top: 8px;
}

.form-submit button {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.form-submit button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ========================================
   ABOUT PAGE
   ======================================== */
.about-section {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.about-grid.reverse {
    direction: rtl;
}

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

.about-content h2 {
    margin-bottom: 20px;
}

.about-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.about-visual {
    background: var(--gray-100);
    border-radius: 24px;
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-visual svg {
    width: 200px;
    height: 200px;
    color: var(--gray-400);
}

/* ========================================
   FAQ ACCORDION
   ======================================== */
.faq-section {
    padding: 100px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-question {
    width: 100%;
    padding: 24px 0;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.faq-question svg {
    flex-shrink: 0;
    transition: transform var(--transition);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding-bottom: 24px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========================================
   PRODUCTS PAGE - 9 CATEGORIES LAYOUT
   ======================================== */

/* Quick Navigation */
.quick-nav {
    padding: 40px 0;
    background: var(--dark);
}

.quick-nav-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.quick-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: var(--transition);
    flex: 1;
    min-width: 180px;
}

.quick-nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.quick-nav-num {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
    font-family: monospace;
}

.quick-nav-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
}

/* Products Main Section */
.products-main {
    padding: 80px 0;
    background: var(--gray-100);
}

/* Product Categories */
.product-category {
    background: var(--white);
    border-radius: 24px;
    padding: 48px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-sm);
}

.category-header {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 2px solid var(--gray-200);
}

.category-icon {
    width: 72px;
    height: 72px;
    background: var(--gradient-primary);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.category-info {
    flex: 1;
}

.category-number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.category-info h2 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.category-info p {
    color: var(--gray-500);
    font-size: 1rem;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

/* Comparison Table */
table.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    font-size: 0.9375rem;
}

table.comparison-table thead th {
    background: var(--gray-100);
    padding: 16px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

table.comparison-table tbody td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

table.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

table.comparison-table tbody tr:hover {
    background: var(--gray-50);
}

/* Product Card */
.product-card {
    background: var(--gray-100);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

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

.product-image {
    height: 180px;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
}

.product-content {
    padding: 28px;
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    background: var(--accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
}

.product-content h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.product-content > p {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.product-specs {
    list-style: none;
    margin-bottom: 20px;
}

.product-specs li {
    position: relative;
    padding-left: 16px;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 6px;
}

.product-specs li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 5px;
    height: 5px;
    background: var(--primary);
    border-radius: 50%;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.product-link:hover {
    color: var(--primary-dark);
    gap: 12px;
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #3B82F6 100%);
    text-align: center;
}

.cta-content h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 16px;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: white;
    color: var(--primary);
}

.cta-buttons .btn-primary:hover {
    background: var(--gray-100);
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-buttons .btn-secondary:hover {
    background: white;
    color: var(--primary);
}

/* Footer Grid Override */
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: block;
    margin-bottom: 16px;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    letter-spacing: 0.05em;
}

.footer-logo:hover {
    color: #93C5FD;
}

.footer-brand > p {
    color: var(--gray-400);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1200px) {
    .hero-container {
        gap: 60px;
    }

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

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

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

    .footer-main {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }

    .footer-brand {
        grid-column: span 3;
    }

    .why-grid {
        gap: 60px;
    }

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

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

    .about-grid.reverse {
        direction: ltr;
    }

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

@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 700px;
        margin: 0 auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-trust {
        justify-content: center;
    }

    .hero-visual {
        max-width: 400px;
        margin: 0 auto;
    }

    .why-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .why-visual {
        order: -1;
    }

    .cta-container {
        flex-direction: column;
        text-align: center;
    }

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

    .product-gallery {
        position: static;
    }

    .product-category {
        padding: 32px;
    }

    .quick-nav-item {
        min-width: 150px;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 70px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

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

    .nav-link {
        font-size: 1.25rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .btn-quote {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-scroll {
        display: none;
    }

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

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

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

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

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

    .footer-brand {
        grid-column: span 1;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-legal {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

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

    .form-group.full-width {
        grid-column: span 1;
    }

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

    .product-category {
        padding: 24px;
    }

    .category-header {
        flex-direction: column;
        gap: 16px;
    }

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

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

    /* Product Category Layout - Grid override */
    .product-category > div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }

    .product-category .cta-section {
        padding: 60px 0;
    }

    .product-category .cta-content h2 {
        font-size: 1.5rem;
    }

    /* 4-column grid for process steps */
    .product-grid > div[style*="repeat(4, 1fr)"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .hero-trust {
        flex-direction: column;
        gap: 16px;
    }

    .trust-divider {
        display: none;
    }

    .hero-specs {
        flex-wrap: wrap;
        gap: 24px;
    }

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

    .btn-download, .btn-request {
        width: 100%;
        justify-content: center;
    }

    .quick-nav-grid {
        flex-direction: column;
    }

    .quick-nav-item {
        min-width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons a {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   BLOG PAGE STYLES
   ======================================== */
.page-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
    text-align: center;
    position: relative;
}

.page-hero-sm {
    padding: 120px 0 60px;
}

.page-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(30, 58, 138, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
}

.page-hero .hero-subtitle {
    color: var(--gray-500);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Blog Featured */
.blog-featured {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    background: var(--white);
    border-radius: 24px;
    overflow: hidden;
    margin-bottom: 60px;
    box-shadow: var(--shadow);
}

.blog-featured-image {
    position: relative;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-category {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 14px;
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.blog-featured-content {
    padding: 48px 48px 48px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.blog-date,
.blog-read-time {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.blog-date::after {
    content: '•';
    margin-left: 16px;
    color: var(--gray-300);
}

.blog-featured-content h2 {
    font-size: 1.75rem;
    margin-bottom: 16px;
    line-height: 1.3;
}

.blog-featured-content p {
    color: var(--gray-600);
    margin-bottom: 24px;
    line-height: 1.7;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.blog-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-card-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, #F8FAFC 0%, #E2E8F0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.blog-card-image .blog-category {
    font-size: 0.7rem;
    padding: 4px 10px;
}

.blog-card-content {
    padding: 28px;
}

.blog-card-content h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.blog-card-content > p {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: 16px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.blog-link:hover {
    color: var(--primary-dark);
}

/* Newsletter */
.newsletter-section {
    background: var(--dark);
    border-radius: 24px;
    padding: 60px;
    text-align: center;
}

.newsletter-content h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.newsletter-content > p {
    color: var(--gray-400);
    margin-bottom: 24px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 500px;
    margin: 0 auto 16px;
}

.newsletter-form input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
}

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

.newsletter-form button {
    padding: 14px 28px;
    white-space: nowrap;
}

.newsletter-note {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ========================================
   LEGAL PAGES STYLES
   ======================================== */
.container-narrow {
    max-width: 900px;
}

.legal-content {
    background: var(--white);
    padding: 60px;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.legal-toc {
    background: var(--gray-100);
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 48px;
}

.legal-toc h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
}

.legal-toc ul {
    list-style: none;
}

.legal-toc li {
    margin-bottom: 12px;
}

.legal-toc a {
    color: var(--primary);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.legal-toc a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.legal-section {
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--gray-200);
}

.legal-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.legal-section h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
    color: var(--gray-800);
}

.legal-section p {
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.7;
}

.legal-section ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.legal-section li {
    color: var(--gray-600);
    margin-bottom: 8px;
    line-height: 1.6;
}

.contact-info-box {
    background: var(--gray-100);
    padding: 24px;
    border-radius: 12px;
    margin-top: 16px;
}

.contact-info-box p {
    margin-bottom: 8px;
}

.contact-info-box p:last-child {
    margin-bottom: 0;
}

/* Patent Table */
.patent-table {
    margin: 24px 0;
    overflow-x: auto;
}

.patent-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.patent-table th {
    background: var(--primary);
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

.patent-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

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

.patent-note {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-style: italic;
}
/* RTL: 导航栏布局修复 */
[dir="rtl"] .nav-container {
    direction: ltr; /* 导航栏内部从左到右 */
}
[dir="rtl"] .nav-logo,
[dir="rtl"] .nav-menu,
[dir="rtl"] .nav-actions {
    direction: ltr;
}
/* 链接文字保持RTL */
[dir="rtl"] .nav-link,
[dir="rtl"] .btn-quote {
    direction: rtl;
    unicode-bidi: embed;
}