:root {
    --primary: #25D366;
    --primary-dark: #128C7E;
    --primary-light: #dcfce7;
    --primary-50: #f0fdf4;
    --primary-100: #dcfce7;
    --primary-200: #bbf7d0;
    --primary-600: #16a34a;
    --primary-700: #15803d;
    --primary-800: #166534;
    --primary-900: #064e3b;
    --secondary: #075e54;
    --accent: #34b7f1;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --warning: #f59e0b;
    --danger: #ef4444;
    --success: #10b981;
    --white: #ffffff;
    --font-sans: 'Inter', 'Noto Sans SC', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 24px;
    padding: 12px 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-md);
    z-index: 1000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 12px;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary);
    color: var(--primary-dark);
}

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

.btn-primary-sm {
    background-color: var(--primary);
    color: var(--white);
    padding: 8px 16px;
}

.btn-outline-sm {
    padding: 8px 16px;
    border-color: var(--gray-300);
    color: var(--primary-dark);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 16px;
    height: 16px;
}

/* ==================== HEADER ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255,255,255,0.95);
    border-bottom: 1px solid var(--gray-200);
    backdrop-filter: blur(10px);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    gap: 24px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-900);
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.nav-link {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    background-color: var(--gray-100);
    color: var(--primary-dark);
}

.nav-link.active {
    background-color: var(--primary-50);
    color: var(--primary-dark);
}

.nav-link-highlight {
    position: relative;
}

.badge-new {
    display: inline-block;
    padding: 2px 6px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    margin-left: 4px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    position: relative;
    transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: all var(--transition-base);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* ==================== HERO SECTION ==================== */
.hero {
    position: relative;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 50%, var(--primary-200) 100%);
    overflow: hidden;
}

.hero-bg-gradient {
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.1;
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.hero-badge {
    margin-bottom: 24px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-xl);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: 32px;
    color: var(--gray-700);
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.stat-unit {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-dark);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-trust {
    margin-top: 48px;
}

.trust-text {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.trust-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.trust-logo {
    color: var(--gray-400);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Hero Visual/Dashboard */
.hero-visual {
    display: none;
}

@media (min-width: 768px) {
    .hero > .container {
        flex: 1;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
    }

    .hero-visual {
        display: block;
    }
}

/* ==================== FEATURES SECTION ==================== */
.features {
    padding: 80px 0;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 60px;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background-color: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

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

.feature-icon {
    margin-bottom: 20px;
    width: 64px;
    height: 64px;
    display: flex;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--gray-600);
    font-size: 0.938rem;
}

/* ==================== HOW IT WORKS SECTION ==================== */
.how-it-works {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.step-card {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.step-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.step-desc {
    color: var(--gray-600);
    font-size: 0.938rem;
    line-height: 1.6;
}

/* ==================== PRICING SECTION ==================== */
.pricing {
    padding: 80px 0;
    background-color: var(--white);
}

.pricing-toggle {
    display: flex;
    justify-content: center;
    background-color: var(--gray-100);
    padding: 6px;
    border-radius: var(--radius-lg);
    max-width: 320px;
    margin: 0 auto;
    margin-bottom: 48px;
}

.toggle-btn {
    flex: 1;
    padding: 12px 24px;
    background: none;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-btn.active {
    background-color: var(--white);
    color: var(--primary-dark);
    box-shadow: var(--shadow-sm);
}

.badge-discount {
    display: inline-block;
    padding: 2px 6px;
    background-color: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    margin-left: 4px;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1080px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: 40px;
    background-color: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

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

.pricing-card-popular {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.popular-label {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: var(--radius-xl);
}

.card-heading {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.price-currency {
    font-size: 1.5rem;
    vertical-align: super;
    color: var(--gray-900);
}

.price-amount {
    color: var(--gray-900);
}

.price-period {
    font-size: 1rem;
    color: var(--gray-600);
    font-weight: 400;
}

.plan-desc {
    color: var(--gray-600);
    font-size: 0.938rem;
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 0.938rem;
    color: var(--gray-700);
}

.feature-item::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ==================== CONTACT SECTION ==================== */
.testimonials {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.testimonial-card {
    padding: 32px;
    background-color: var(--white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.testimonial-rating {
    margin-bottom: 16px;
    font-size: 1.25rem;
    color: var(--warning);
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    margin-bottom: 24px;
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
}

.author-title {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.company-logo {
    margin-top: 4px;
    height: 24px;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 24px 0 0 0;
}

.stat-big-item {
    text-align: center;
}

.stat-big-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.stat-big-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    padding: 80px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

.contact-info h2 {
    text-align: left;
}

.section-d {
    color: var(--gray-600);
    text-align: left;
    margin-bottom: 24px;
    max-width: 600px;
}

.contact-contact {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.contact-list-item h3 {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 4px;
    font-weight: 500;
}

.contact-list-item a {
    color: var(--gray-900);
    font-weight: 500;
}

.contact-form {
    padding: 40px;
    background-color: var(--gray-50);
    border-radius: var(--radius-xl);
    border: 1px solid var(--gray-200);
}

.form-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-200);
}

.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    resize: vertical;
    min-height: 120px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-200);
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.form-checkbox input {
    margin-top: 4px;
}

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

/* ==================== CTA SECTION ==================== */
.cta-section {
    padding: 80px 0;
    background-color: var(--primary-50);
}

.cta-content {
    display: flex;
    align-items: center;
    gap: 48px;
    padding: 48px;
    background-color: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.cta-text {
    flex: 1;
}

.cta-text h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-text p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 24px;
}

.cta-visual {
    flex: 1;
    max-width: 400px;
}

@media (max-width: 768px) {
    .cta-content {
        flex-direction: column;
        padding: 32px;
    }
}

/* ==================== FOOTER ==================== */
.footer {
    padding: 60px 0 24px;
    background-color: var(--gray-900);
    color: var(--gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 0.938rem;
    margin-bottom: 16px;
}

.footer-nav h4,
.footer-nav .footer-nav-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
    list-style: none;
}

.footer-nav a {
    color: var(--gray-400);
    font-size: 0.938rem;
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-700);
}

.copyright {
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

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

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

/* ==================== BACK TO TOP ==================== */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 100;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-4px);
}

/* ==================== CHAT PREVIEW ==================== */
.hero-dashboard {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background-color: var(--primary-dark);
    color: var(--white);
}

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

.dashboard-dots span {
    width: 12px;
    height: 12px;
    background-color: #ff5f56;
    border-radius: 50%;
}

.dashboard-dots span:nth-child(2) {
    background-color: #ffbd2e;
}

.dashboard-dots span:nth-child(3) {
    background-color: #27c93f;
}

.dashboard-title {
    font-size: 0.875rem;
    font-weight: 500;
}

.dashboard-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.chat-preview {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.chat-message {
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    font-size: 0.938rem;
    max-width: 80%;
}

.chat-message.received {
    background-color: var(--gray-100);
    align-self: flex-start;
    margin-left: 16px;
}

.chat-received {
    color: var(--gray-900);
}

.chat-message.sent {
    background-color: var(--primary-100);
    align-self: flex-end;
    margin-right: 16px;
}

.message-sender {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.ai-badge {
    display: inline-block;
    padding: 2px 6px;
    background-color: var(--primary);
    color: var(--white);
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
}

.read-receipt {
    display: inline-block;
    margin-top: 4px;
    font-size: 0.75rem;
    color: var(--primary);
}

.chat-message time {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 4px;
    text-align: right;
}

.ai-processing {
    padding: 16px;
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

.processing-indicator {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--gray-500);
    font-size: 0.875rem;
}

.processing-dots {
    display: inline-flex;
    gap: 4px;
}

.processing-dots span {
    width: 6px;
    height: 6px;
    background-color: var(--primary);
    border-radius: 50%;
    animation: processingDots 1.4s infinite;
}

.processing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.processing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes processingDots {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.processing-metrics {
    display: flex;
    gap: 16px;
}

.metric {
    flex: 1;
    padding: 8px 12px;
    background-color: var(--white);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
    text-align: left;
}

.metric-label {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-600);
}

.metric-value {
    display: block;
    font-weight: 600;
    color: var(--primary-dark);
    font-size: 1rem;
}

/* ==================== ANIMATE ON SCROLL ==================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== RESPONSIVE STYLES ==================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-visual {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav {
        height: auto;
        padding: 16px 24px;
        flex-wrap: wrap;
    }
    
    .nav-toggle {
        display: block;
        order: 4;
    }
    
    .nav-menu {
        display: none;
        order: 5;
        width: 100%;
        flex-direction: column;
        padding-top: 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero {
        padding: 60px 0 40px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .trust-logos {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-d {
        font-size: 0.938rem;
    }
}

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

/* ==================== BREADCRUMB NAV ==================== */
.breadcrumb-nav {
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
}

.breadcrumb-nav .breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.breadcrumb-nav .breadcrumb-item::after {
    content: '/';
    margin: 0 8px;
    color: var(--gray-400);
}

.breadcrumb-nav .breadcrumb-item a {
    color: var(--gray-600);
}

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

.breadcrumb-nav .breadcrumb-current {
    color: var(--primary-dark);
    font-weight: 500;
}

/* ==================== SILO ASIDE (Internal Linking) ==================== */
.silo-aside {
    padding: 64px 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--primary-50) 100%);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.silo-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.silo-desc {
    font-size: 1.063rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}

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

.silo-link {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 24px;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    color: var(--gray-800);
}

.silo-link:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
    color: var(--gray-800);
}

.silo-link-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    padding-top: 2px;
}

.silo-link-content strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.silo-link-content span {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.silo-link:hover .silo-link-content strong {
    color: var(--primary);
}

.contact-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 4px;
    font-weight: 500;
}

@media print {
    .back-to-top,
    .nav-toggle {
        display: none;
    }
    
    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}