/* ============================================
   Smile Align 皓適美 - Stylesheet
   Updated to match PRD color scheme:
   - Fresh Blue: #1E90FF
   - Light Gray: #F5F6F7
   - White: #FFFFFF
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+TC:wght@400;500;600;700&display=swap');

:root {
    --color-primary: #1E90FF;
    --color-primary-dark: #1873CC;
    --color-primary-light: #4DA6FF;
    --color-gray-light: #F5F6F7;
    --color-gray: #9CA3AF;
    --color-gray-dark: #6B7280;
    --color-text: #111827;
    --color-text-muted: #6B7280;
    --color-white: #FFFFFF;
    --color-border: #E5E7EB;
    
    --font-primary: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-chinese: 'Noto Sans TC', 'Microsoft YaHei', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 5rem;
    
    --container-max-width: 1280px;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
}

/* Navigation Styles */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

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

.navbar .flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 6rem;
    position: relative;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--color-text);
}

.navbar .logo img {
    height: 5rem;
    width: auto;
    aspect-ratio: 16 / 9;
}

.navbar .logo-text {
    display: none;
}

.navbar .logo-tagline {
    color: #0D52B7;
    font-family: var(--font-chinese);
    font-weight: 500;
    font-size: 1rem;
    margin-left: var(--spacing-sm);
    white-space: nowrap;
    display: none;
}

@media (min-width: 768px) {
    .navbar .logo-tagline {
        display: block;
        font-size: 1.125rem;
    }
}

@media (min-width: 1024px) {
    .navbar .logo-tagline {
        font-size: 1.25rem;
    }
}

.navbar .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
}

.navbar .nav-links.is-open {
    display: flex;
}

.navbar .nav-links .nav-link,
.navbar .nav-links .cta-button {
    width: 100%;
}

.navbar .nav-links .lang-switcher {
    width: 100%;
    justify-content: flex-start;
}

body.mobile-menu-open {
    overflow: hidden;
}

@media (min-width: 768px) {
    .navbar .nav-links {
        position: static;
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-lg);
        padding: 0;
        background: transparent;
        border: none;
        box-shadow: none;
    }

    .navbar .nav-links .nav-link,
    .navbar .nav-links .cta-button,
    .navbar .nav-links .lang-switcher {
        width: auto;
    }
}

.navbar .nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-family: var(--font-chinese);
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--color-primary);
}

.navbar .lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.navbar .lang-btn {
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    background: transparent;
    color: var(--color-gray-dark);
    cursor: pointer;
    font-weight: 500;
}

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

.navbar .lang-btn:hover {
    color: var(--color-text);
}

.navbar .cta-button {
    padding: 0.5rem 1rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.875rem;
}

.navbar .cta-button:hover {
    background: var(--color-primary-dark);
}

/* Hero Section */
.hero {
    position: relative;
    background: linear-gradient(135deg, #3b82f6 0%, #ef4444 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) var(--spacing-sm);
    overflow: hidden;
    margin-top: 6rem;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.1);
}

.hero .container {
    position: relative;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

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

.hero h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-chinese);
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }
}

.hero .subtitle {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
    font-weight: 500;
    font-family: var(--font-chinese);
    letter-spacing: 0.05em;
}

@media (min-width: 768px) {
    .hero .subtitle {
        font-size: 1.125rem;
    }
}

.hero .subtitle-description {
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    opacity: 0.85;
    font-weight: 400;
    font-family: var(--font-chinese);
    max-width: 28rem;
}

@media (min-width: 768px) {
    .hero .subtitle-description {
        font-size: 1rem;
        line-height: 1.7;
    }
}

.hero .tagline {
    font-size: 1.75rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-lg);
    opacity: 1;
    font-family: var(--font-chinese);
    font-weight: 600;
    letter-spacing: 0.02em;
}

@media (min-width: 768px) {
    .hero .tagline {
        font-size: 2.25rem;
        line-height: 1.3;
    }
}

.hero .description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    opacity: 0.92;
    max-width: 36rem;
    font-family: var(--font-chinese);
    font-weight: 400;
}

@media (min-width: 768px) {
    .hero .description {
        font-size: 1.25rem;
        line-height: 1.75;
    }
}

.hero-button-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

@media (min-width: 640px) {
    .hero-button-row {
        flex-direction: row;
    }
}

.hero-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.75rem;
    padding: 0 2rem;
    border-radius: var(--border-radius);
    background: var(--color-white);
    color: #2563eb;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: var(--font-chinese);
    text-decoration: none;
}

.hero-btn-primary:hover {
    background: #f3f4f6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.hero-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.75rem;
    padding: 0 2rem;
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--color-white);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    border: 2px solid var(--color-white);
    transition: var(--transition);
    font-family: var(--font-chinese);
    text-decoration: none;
}

.hero-btn-secondary:hover {
    background: var(--color-white);
    color: #2563eb;
}

.hero img {
    width: 100%;
    max-width: 28rem;
    margin-left: auto;
    margin-right: 0;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    display: block;
}

/* Why Choose Us Section */
.why-choose-us {
    padding: var(--spacing-3xl) var(--spacing-sm);
    background-color: var(--color-gray-light);
}

.why-choose-us .section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.why-choose-us .section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-chinese);
}

.why-choose-us .section-subtitle {
    font-size: 20px;
    color: var(--color-text-muted);
    max-width: 48rem;
    margin: 0 auto;
    font-family: var(--font-chinese);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--color-gray-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(30, 144, 255, 0.1);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: var(--color-primary);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 2rem;
    height: 2rem;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-family: var(--font-chinese);
}

.feature-card p {
    color: var(--color-text-muted);
    font-family: var(--font-chinese);
    line-height: 1.8;
    text-align: left;
    font-size: 20px;
}

@media (max-width: 1023px) {
    .hero img {
        margin-left: auto;
        margin-right: auto;
    }
}

.section img {
    width: 100%;
    max-width: 28rem;
    margin-left: auto;
    margin-right: 0;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    display: block;
}

@media (max-width: 1023px) {
    .section img {
        margin-left: auto;
        margin-right: auto;
    }
}

/* Sections */
.section {
    padding: var(--spacing-3xl) var(--spacing-sm);
}

#brand-story {
    padding: 1.875rem var(--spacing-sm);
}

.section-alt {
    background-color: var(--color-gray-light);
}

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

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

.mb-16 {
    margin-bottom: var(--spacing-2xl);
}

.mb-8 {
    margin-bottom: var(--spacing-lg);
}

.mb-4 {
    margin-bottom: var(--spacing-sm);
}

.text-3xl {
    font-size: 1.875rem;
    line-height: 2.25rem;
}

.text-2xl {
    font-size: 1.5rem;
    line-height: 2rem;
}

.text-xl {
    font-size: 1.25rem;
    line-height: 1.75rem;
}

.text-lg {
    font-size: 1.125rem;
    line-height: 1.75rem;
}

.text-base {
    font-size: 1.125rem;
    line-height: 1.75rem;
}

.service-title {
    font-size: 1.1875rem; /* 19px */
    line-height: 1.75rem;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

.text-foreground {
    color: var(--color-text);
}

.text-muted-foreground {
    color: var(--color-text-muted);
}

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

.text-white {
    color: var(--color-white);
}

.leading-relaxed {
    line-height: 1.625;
}

.max-w-2xl {
    max-width: 42rem;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

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

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Cards */
.card {
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    box-shadow: 0 8px 24px rgba(30, 144, 255, 0.15);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--spacing-md);
}

.card-content {
    padding: var(--spacing-md);
    padding-top: 0;
    flex-grow: 1;
}

.card-footer {
    padding: var(--spacing-md);
    padding-top: 0;
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

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

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--spacing-xs);
}

.gap-4 {
    gap: var(--spacing-sm);
}

.gap-6 {
    gap: var(--spacing-md);
}

.gap-8 {
    gap: var(--spacing-lg);
}

.mb-6 {
    margin-bottom: var(--spacing-md);
}

.mb-12 {
    margin-bottom: var(--spacing-xl);
}

.w-12 {
    width: 3rem;
}

.h-12 {
    height: 3rem;
}

.w-6 {
    width: 2.25rem;
}

.h-6 {
    height: 2.25rem;
}

[class*="w-3.5"] {
    width: 0.875rem;
}

[class*="h-3.5"] {
    height: 0.875rem;
}

.rounded-lg {
    border-radius: var(--border-radius-lg);
}

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

.bg-primary-gradient {
    background: linear-gradient(135deg, #2563eb 0%, #dc2626 100%);
}

.bg-icon-light-blue {
    background-color: #E3F2FD;
}

.text-white {
    color: var(--color-white);
}

.flex-col {
    flex-direction: column;
}

.space-y-2 > * + * {
    margin-top: var(--spacing-xs);
}

.space-y-3 > * + * {
    margin-top: 0.75rem;
}

.space-y-6 > * + * {
    margin-top: var(--spacing-md);
}

/* Price Badge */
.price-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #E53E3E;
    color: var(--color-white);
    border-radius: 9999px;
    font-size: 1rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1E3A5F 0%, #0F172A 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) var(--spacing-sm);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer .col-span-2 {
    grid-column: span 2;
}

.footer .logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.95);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-lg);
    width: fit-content;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.footer .logo-section img {
    height: 3rem;
    width: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
}

.footer .logo-text {
    font-size: 1.125rem;
    font-weight: 600;
    color: #111827;
    font-family: var(--font-chinese);
}

.footer .footer-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    max-width: 20rem;
    line-height: 1.6;
    font-family: var(--font-chinese);
    font-size: 1rem;
}

.footer .footer-disclaimer {
    font-size: 0.875rem;
    line-height: 1.5;
    margin-top: var(--spacing-md);
    color: rgba(255, 255, 255, 0.6);
}

.footer .footer-disclaimer strong {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

.footer .footer-title {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    color: var(--color-white);
    font-family: var(--font-chinese);
}

.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links-list li {
    margin-bottom: 0.5rem;
}

.footer .footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    font-family: var(--font-chinese);
    font-size: 1rem;
    line-height: 1.6;
}

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

.footer .contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer .contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    line-height: 1.6;
    font-family: var(--font-chinese);
}

.footer .contact-item span {
    flex: 1;
}

.footer .contact-icon {
    color: rgba(255, 255, 255, 0.7);
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
}

.footer .copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1rem;
    font-family: var(--font-chinese);
}

/* Grid utilities */
.grid {
    display: grid;
}

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

@media (min-width: 768px) {
    .md\:grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.gap-12 {
    gap: var(--spacing-xl);
}

.items-center {
    align-items: center;
}

.rounded-2xl {
    border-radius: var(--border-radius-lg);
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.w-full {
    width: 100%;
}

.text-yellow-400 {
    color: #fbbf24;
}

.fill-current {
    fill: currentColor;
}

.w-5 {
    width: 1.25rem;
}

.h-5 {
    height: 1.25rem;
}

.w-10 {
    width: 2.5rem;
}

.h-10 {
    height: 2.5rem;
}

.rounded-full {
    border-radius: 9999px;
}

.mr-3 {
    margin-right: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
    line-height: 1.25rem;
}

/* Increase font size in the services section specifically */
#services .text-sm {
    font-size: 1rem; /* 16px */
}

.text-xs {
    font-size: 0.75rem;
    line-height: 1rem;
}

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

.hover\:bg-gray-100:hover {
    background-color: var(--color-gray-light);
}

.transition-smooth {
    transition: var(--transition);
}

/* CTA Buttons */
.cta-btn-primary,
.cta-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-chinese);
    min-width: 160px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Ensure button container is centered */
.flex.justify-center {
    justify-content: center !important;
    width: 100%;
}

.flex.items-center {
    align-items: center !important;
}

.cta-btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid transparent;
}

.cta-btn-primary:hover {
    background: #f3f4f6;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.cta-btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.cta-btn-secondary:hover {
    background: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.px-8 {
    padding-left: 2rem;
    padding-right: 2rem;
}

.py-3 {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.rounded-md {
    border-radius: var(--border-radius);
}

.border {
    border-width: 1px;
}

.border-white {
    border-color: var(--color-white);
}

.hover\:bg-white:hover {
    background-color: var(--color-white);
}

.hover\:text-primary:hover {
    color: var(--color-primary);
}

.opacity-90 {
    opacity: 0.9;
}

.sm\:flex-row {
    flex-direction: row;
}

@media (min-width: 640px) {
    .sm\:flex-row {
        flex-direction: row;
    }
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 1px solid var(--color-border);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.testimonial-rating {
    margin-bottom: var(--spacing-md);
}

.stars {
    font-size: 1.25rem;
    color: #fbbf24;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.testimonial-quote {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
    font-family: var(--font-chinese);
    position: relative;
    padding-left: var(--spacing-md);
}

.testimonial-quote::before {
    content: '"';
    font-size: 3rem;
    color: var(--color-primary);
    position: absolute;
    left: 0;
    top: -0.5rem;
    font-family: serif;
    opacity: 0.3;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.author-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.author-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.author-name {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text);
    font-family: var(--font-chinese);
}

.author-title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-chinese);
}

/* YouTube Section */
.youtube-section {
    background: var(--color-gray-light);
    padding: var(--spacing-3xl) var(--spacing-sm);
}

.youtube-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

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

@media (min-width: 1024px) {
    .youtube-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.youtube-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.youtube-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.youtube-card iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
}

.youtube-card-content {
    padding: var(--spacing-sm);
}

/* FAQ Section */
.faq-section {
    padding: var(--spacing-3xl) var(--spacing-sm);
}

.faq-item {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-md);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-family: var(--font-chinese);
    transition: var(--transition);
}

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

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-muted);
    display: none;
    font-family: var(--font-chinese);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

.mobile-menu-btn.is-active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-menu-btn.is-active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.is-active span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}