/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Mobile-first responsive container */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.3s forwards;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #667eea;
    border-color: #667eea;
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    transform: translateY(0);
    animation: slideInDown 0.8s ease-out;
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    opacity: 0;
    animation: fadeIn 1s ease-out 0.2s forwards;
}

.logo-divider {
    margin: 0 8px;
    color: #667eea;
    opacity: 0;
    animation: scaleIn 0.5s ease-out 0.8s forwards;
}

.logo-subtitle {
    font-weight: 300;
    color: #667eea;
    opacity: 0;
    animation: fadeIn 1s ease-out 0.4s forwards;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.nav-link:nth-child(1) { animation-delay: 0.6s; }
.nav-link:nth-child(2) { animation-delay: 0.7s; }
.nav-link:nth-child(3) { animation-delay: 0.8s; }
.nav-link:nth-child(4) { animation-delay: 0.9s; }
.nav-link:nth-child(5) { animation-delay: 1.0s; }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #667eea;
    transform: translateY(-2px);
}

.nav-link:hover::after {
    width: 100%;
}

.language-toggle {
    margin-left: 20px;
    position: relative;
    z-index: 1000;
}

.lang-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    position: relative;
    z-index: 1000;
    pointer-events: auto;
    outline: none;
}

.lang-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.lang-btn:focus {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #2c3e50;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="%23667eea" opacity="0.1"/><circle cx="80" cy="40" r="0.3" fill="%23764ba2" opacity="0.1"/><circle cx="40" cy="80" r="0.4" fill="%23667eea" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-align: center;
    opacity: 0;
    animation: fadeInScale 1.2s ease-out 0.5s forwards;
}

.hero-tagline {
    font-size: 1.5rem;
    color: #666;
    margin-bottom: 2rem;
    font-style: italic;
    text-align: center;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1s forwards;
}

.hero-brand {
    display: block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-brand::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
    opacity: 0;
    animation: expandWidth 0.8s ease-out 1.8s forwards;
}

.hero-description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.8;
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.3s forwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 3rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.6s forwards;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #667eea;
    border-color: #667eea;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

/* Keyframe Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes fadeInScale {
    from { 
        opacity: 0; 
        transform: scale(0.9); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

@keyframes slideInDown {
    from { 
        opacity: 0; 
        transform: translateY(-100%); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes scaleIn {
    from { 
        opacity: 0; 
        transform: scale(0); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

@keyframes expandWidth {
    from { 
        opacity: 0; 
        width: 0; 
    }
    to { 
        opacity: 1; 
        width: 60px; 
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Advanced Animation Classes */
.animate-in {
    animation: bounceIn 0.8s ease-out forwards;
}

.slide-in {
    animation: slideInFromLeft 0.8s ease-out forwards;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(50px);
    }
    50% {
        opacity: 1;
        transform: scale(1.05) translateY(-10px);
    }
    70% {
        transform: scale(0.95) translateY(5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideInFromLeft {
    0% {
        opacity: 0;
        transform: translateX(-50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Enhanced Hover Effects */
.service-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(102, 126, 234, 0.1), 
        transparent);
    transition: left 0.6s;
    z-index: 1;
}

.service-card:hover::before {
    left: 100%;
}

.service-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.service-card .service-icon {
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(360deg);
}

.comparison-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.05) 0%, 
        rgba(118, 75, 162, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.comparison-card:hover::before {
    opacity: 1;
}

.comparison-card:hover {
    border-color: #667eea;
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
}

/* Glowing text effect */
.glow-text {
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from {
        text-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(118, 75, 162, 0.8);
    }
}

/* Pulse animation for buttons */
.pulse {
    animation: pulseAnimation 2s infinite;
}

@keyframes pulseAnimation {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(102, 126, 234, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
    }
}

/* Morphing background shapes */
.morphing-bg {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(45deg, 
        rgba(102, 126, 234, 0.1), 
        rgba(118, 75, 162, 0.1));
    animation: morphShape 15s ease-in-out infinite;
    z-index: 1;
}

@keyframes morphShape {
    0%, 100% {
        border-radius: 50% 50% 50% 50%;
        transform: rotate(0deg) scale(1);
    }
    25% {
        border-radius: 60% 40% 60% 40%;
        transform: rotate(90deg) scale(1.1);
    }
    50% {
        border-radius: 40% 60% 40% 60%;
        transform: rotate(180deg) scale(0.9);
    }
    75% {
        border-radius: 50% 50% 30% 70%;
        transform: rotate(270deg) scale(1.05);
    }
}

/* Floating animation for particles */
@keyframes floatParticle {
    0% {
        transform: translateY(100vh) translateX(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-10vh) translateX(100px) rotate(360deg);
        opacity: 0;
    }
}

/* Gradient text animation */
.gradient-text {
    background: linear-gradient(45deg, #667eea, #764ba2, #667eea);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Responsive enhancements */
@media (max-width: 768px) {
    .service-card:hover {
        transform: translateY(-10px) scale(1.02);
    }
    
    .comparison-card:hover {
        transform: translateY(-5px) scale(1.01);
    }
    
    .morphing-bg {
        width: 200px;
        height: 200px;
    }
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.pricing .section-title {
    color: white;
    margin-bottom: 1rem;
}

.pricing-intro {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 4rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: #333;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.pricing-card.featured {
    transform: scale(1.05);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 15px;
}

.currency {
    font-size: 1.5rem;
    color: #667eea;
    margin-right: 5px;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
}

.plan-description {
    color: #666;
    font-size: 1rem;
    line-height: 1.5;
}

.pricing-features ul {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: #22c55e;
    font-size: 1rem;
}

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

.btn-outline {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.pricing-addons {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
}

.pricing-addons h3 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
}

.addons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.addon-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.addon-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.addon-item h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.addon-item p {
    margin-bottom: 15px;
    opacity: 0.9;
    font-size: 0.95rem;
}

.addon-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffd700;
}

/* About Section Responsive */
@media (max-width: 768px) {
    .about {
        padding: 60px 0;
    }
    
    .about-intro {
        margin-bottom: 40px;
    }
    
    .main-quote {
        font-size: 1.1rem;
        padding: 1.5rem;
        margin-bottom: 1rem;
        line-height: 1.5;
    }
    
    .author {
        text-align: center;
        margin-bottom: 0;
        font-size: 1rem;
    }
    
    /* Profile Stats - 手機版改為垂直排列 */
    .profile-stats-section {
        flex-direction: column;
        gap: 20px;
        padding: 1.5rem;
        margin-bottom: 40px;
    }
    
    .profile-placeholder {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
        width: 100%;
    }
    
    .stat-item {
        padding: 0.75rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .about-details h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .about-details p {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
        text-align: left;
    }
    
    .about-highlights {
        margin: 2rem 0;
    }
    
    .highlight-item {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem 1rem;
        margin-bottom: 1rem;
        background: rgba(255, 255, 255, 0.8);
        border-radius: 10px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }
    
    .highlight-item i {
        margin-bottom: 0.5rem;
        font-size: 1.5rem;
        color: #667eea;
    }
    
    .highlight-item h4 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
        color: #333;
    }
    
    .highlight-item p {
        font-size: 0.9rem;
        line-height: 1.5;
        color: #666;
        margin-bottom: 0;
    }
    
    .skills {
        margin-top: 2rem;
    }
    
    .skills h4 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
        text-align: center;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        justify-items: center;
    }
    
    .skill-tag {
        font-size: 0.85rem;
        padding: 6px 12px;
        white-space: nowrap;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .addons-grid {
        grid-template-columns: 1fr;
    }
}

/* Portfolio Section */
.portfolio {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
}

.portfolio-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.portfolio-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.portfolio-item.featured {
    grid-column: span 1;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    border: 2px solid rgba(102, 126, 234, 0.1);
}

.portfolio-item.coming-soon {
    opacity: 0.8;
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f2ff, #e8ecff);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    font-size: 4rem;
    position: relative;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
    padding: 30px;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.portfolio-info p {
    margin-bottom: 15px;
    opacity: 0.9;
}

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 20px;
}

.tag {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
}

.portfolio-actions {
    margin-top: auto;
}

.portfolio-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    color: #667eea;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.portfolio-btn:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.portfolio-content {
    padding: 30px;
}

.portfolio-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: #888;
}

.project-type {
    background: #667eea;
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.portfolio-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #333;
}

.portfolio-description {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-item,
.tech-tag {
    padding: 6px 12px;
    background: #f0f2ff;
    color: #667eea;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.portfolio-cta {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-cta p {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 25px;
}

/* Portfolio Responsive */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .portfolio-item.featured {
        grid-column: span 1;
    }
    
    .portfolio-image {
        height: 200px;
    }
    
    .portfolio-placeholder {
        font-size: 3rem;
    }
    
    .portfolio-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* Additional Services Section */
.additional-services {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.additional-services .section-title {
    color: #ffffff;
    margin-bottom: 1rem;
    text-shadow: 0 3px 8px rgba(0, 0, 0, 0.7);
    font-weight: 700;
}

.additional-intro {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 4rem;
    color: #ffffff;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.6);
    font-weight: 500;
}

.networking-welcome {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 25px;
    padding: 40px;
    margin-bottom: 4rem;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.welcome-content h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    color: #ffffff;
    text-shadow: 0 3px 8px rgba(0, 0, 0, 0.5);
    font-weight: 700;
}

.welcome-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    text-align: center;
    margin-bottom: 2rem;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.welcome-highlights {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.welcome-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, color 0.3s ease;
}

.welcome-item i {
    font-size: 1.5rem;
    background: linear-gradient(45deg, #ffd700, #ffeb3b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.welcome-item:hover {
    transform: translateY(-3px);
    color: #ffd700;
}

.additional-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.additional-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.additional-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transition: left 0.6s;
    z-index: 1;
}

.additional-card:hover::before {
    left: 100%;
}

.additional-card:hover {
    transform: translateY(-10px) scale(1.02);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.additional-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.additional-card:hover .additional-icon {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1) rotateY(180deg);
}

.additional-card h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    font-weight: 600;
    position: relative;
    z-index: 2;
    color: #ffffff;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.additional-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
}

.additional-list li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.95rem;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
    font-weight: 500;
}

.additional-list li:last-child {
    border-bottom: none;
}

.commission-note {
    background: rgba(255, 255, 255, 0.35);
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #ffffff;
    position: relative;
    z-index: 2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.additional-cta {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 25px;
    padding: 50px;
    text-align: center;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-content h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #ffffff;
    text-shadow: 0 3px 8px rgba(0, 0, 0, 0.7);
    font-weight: 700;
}

.cta-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    color: #ffffff;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.6);
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

/* Special styling for buttons in additional services section */
.additional-services .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.5);
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.additional-services .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    border-color: rgba(255, 255, 255, 0.9);
    text-shadow: none;
}

.additional-services .btn-primary {
    background: rgba(255, 255, 255, 0.9);
    color: #667eea;
    border: 2px solid rgba(255, 255, 255, 0.9);
    font-weight: 600;
}

.additional-services .btn-primary:hover {
    background: #ffffff;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.cta-highlight {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    color: #667eea;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 20px;
    border-radius: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.highlight-item i {
    color: #ffd700;
    font-size: 1.2rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Additional Services Responsive */
@media (max-width: 768px) {
    .additional-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .additional-cta {
        padding: 30px 20px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-highlight {
        flex-direction: column;
        gap: 20px;
    }
    
    .additional-card h3 {
        font-size: 1.2rem;
    }
    
    .additional-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* Additional Animation Classes */
.animate-in {
    animation: bounceIn 0.8s ease-out forwards;
}

.slide-in {
    animation: slideInFromLeft 0.8s ease-out forwards;
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3) translateY(50px);
    }
    50% {
        opacity: 1;
        transform: scale(1.05) translateY(-10px);
    }
    70% {
        transform: scale(0.95) translateY(5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideInFromLeft {
    0% {
        opacity: 0;
        transform: translateX(-50px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hover Effects */
.service-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.comparison-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.comparison-card:hover {
    border-color: #667eea;
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.1);
}

/* About Section Enhanced */
.about {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
}

/* About Intro (Quote Section) */
.about-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.main-quote {
    font-size: 1.4rem;
    font-style: italic;
    color: #333;
    margin-bottom: 1rem;
    padding: 2rem;
    border-left: 4px solid #667eea;
    line-height: 1.6;
    text-align: left;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
}

.author {
    font-weight: 600;
    color: #667eea;
    margin-bottom: 0;
    text-align: right;
    font-size: 1.1rem;
}

/* Profile Stats Section - 新的統計區域 */
.profile-stats-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    max-width: 600px;
    margin: 0 auto 60px;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.profile-avatar {
    flex-shrink: 0;
}

.profile-placeholder {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* About Content - 現在只是單列佈局 */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    width: 100%;
}

.about-details h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: #333;
    text-align: center;
}

.about-details p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: #666;
    margin-bottom: 2rem;
    text-align: center;
}

.about-highlights {
    margin: 3rem 0;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 2.5rem;
    padding: 25px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.highlight-item i {
    font-size: 2rem;
    color: #667eea;
    margin-top: 5px;
}

.highlight-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.highlight-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.skills h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #333;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    padding: 8px 16px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
}

.about-image {
    position: sticky;
    top: 120px;
}

.profile-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.profile-card:hover {
    transform: translateY(-10px);
}

.profile-placeholder {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 3rem;
}

.profile-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 25px;
}

.stat-item {
    text-align: center;
    padding: 15px;
    background: #f8f9ff;
    border-radius: 10px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-title {
    font-size: 1.3rem;
    margin: 0;
    color: #2c3e50;
    font-weight: 500;
}

/* Guide Section */
.guide {
    padding: 100px 0;
    background: white;
}

.guide-intro {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.comparison-card {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 20px;
    border: 3px solid transparent;
    transition: all 0.3s ease;
}

.comparison-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
}

.comparison-title {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.comparison-section {
    margin-bottom: 2rem;
}

.comparison-section h4 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.comparison-section ul {
    padding-left: 1.5rem;
}

.comparison-section li {
    margin-bottom: 0.5rem;
    color: #666;
}

.comparison-table {
    margin-top: 4rem;
}

.comparison-table h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.table-container {
    overflow-x: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

th, td {
    padding: 1.5rem 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 600;
}

tr:hover {
    background: #f8f9fa;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
}

.contact .section-title {
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    margin-bottom: 0;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.contact-note {
    background: rgba(255, 255, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 2rem;
}

.contact-note h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #74c0fc;
}

.contact-note p {
    margin: 0;
    line-height: 1.6;
    opacity: 0.95;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: none;
    margin: 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #eee;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
}

.footer-social {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.social-link {
    width: 40px;
    height: 40px;
    background: #667eea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #764ba2;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .language-toggle {
        margin-left: 0;
        margin-top: 20px;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-tagline {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .comparison-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }

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

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

    .hero-visual {
        width: 300px;
        height: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    /* Hero Section Mobile Fixes */
    .hero {
        padding: 80px 0 60px;
        min-height: auto;
    }

    .hero-container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
        margin-bottom: 1rem;
    }

    .hero-tagline {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .hero-description {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: 2rem;
        padding: 0 10px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
        width: 200px;
        text-align: center;
    }

    /* Section Spacing */
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
        padding: 0 15px;
    }

    /* About Section */
    .about {
        padding: 60px 0;
    }

    .main-quote {
        font-size: 1.1rem;
        line-height: 1.6;
        padding-left: 15px;
        margin-bottom: 1.5rem;
    }

    .about-details h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    .about-details p {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
    }

    .highlight-item {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .highlight-item i {
        margin-bottom: 0.5rem;
        font-size: 1.5rem;
    }

    .highlight-item h4 {
        font-size: 1.1rem;
        margin-bottom: 0.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .skill-tag {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    /* About Section Mobile - 480px */
    .about {
        padding: 50px 0;
    }
    
    .about-intro {
        margin-bottom: 30px;
    }
    
    .main-quote {
        font-size: 1rem;
        padding: 1rem;
        border-left-width: 3px;
        line-height: 1.4;
        margin-bottom: 1rem;
    }
    
    .author {
        font-size: 0.95rem;
        margin-bottom: 0;
    }
    
    /* Profile Stats - 極小螢幕全部垂直排列 */
    .profile-stats-section {
        flex-direction: column;
        gap: 15px;
        padding: 1rem;
        margin-bottom: 30px;
    }
    
    .profile-placeholder {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 10px;
        width: 100%;
        max-width: 200px;
    }
    
    .stat-item {
        padding: 0.75rem;
    }
    
    .stat-number {
        font-size: 1.4rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .about-details h3 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }
    
    .about-details p {
        font-size: 0.95rem;
        line-height: 1.5;
        margin-bottom: 1.5rem;
    }
    
    .highlight-item {
        padding: 1rem 0.75rem;
        margin-bottom: 0.75rem;
    }
    
    .highlight-item h4 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .highlight-item p {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .skills h4 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .skill-tag {
        font-size: 0.8rem;
        padding: 5px 10px;
        text-align: center;
        max-width: 200px;
        margin: 0 auto;
    }

    /* Services Section Mobile */
    .services {
        padding: 60px 0;
    }

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

    .service-card {
        padding: 2rem 1.5rem;
    }

    .service-title {
        font-size: 1.2rem;
        line-height: 1.4;
    }

    /* Portfolio Section */
    .portfolio {
        padding: 60px 0;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .portfolio-item {
        margin-bottom: 1rem;
    }

    /* Additional Services */
    .additional-services {
        padding: 60px 0;
    }

    .networking-welcome {
        padding: 25px 20px;
        margin-bottom: 2.5rem;
    }

    .welcome-content h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .welcome-content p {
        font-size: 1rem;
        line-height: 1.6;
        margin-bottom: 1.5rem;
    }

    .welcome-highlights {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .welcome-item {
        justify-content: center;
        font-size: 0.95rem;
    }

    .welcome-item i {
        font-size: 1.3rem;
    }

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

    .additional-card {
        padding: 1.5rem;
    }

    .additional-card h3 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .additional-list li {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    /* Pricing Section */
    .pricing {
        padding: 60px 0;
    }

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

    .pricing-card {
        padding: 30px 20px;
        margin-bottom: 1rem;
    }

    .pricing-card.featured {
        transform: none;
        margin: 0 0 1rem 0;
    }

    .plan-name {
        font-size: 1.3rem;
    }

    .amount {
        font-size: 2.5rem;
    }

    .addons-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    /* Guide/Comparison Section */
    .guide {
        padding: 60px 0;
    }

    .comparison-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .comparison-card {
        padding: 2rem 1.5rem;
    }

    .comparison-title {
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
    }

    .comparison-section h4 {
        font-size: 1.1rem;
    }

    .comparison-section p,
    .comparison-section li {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 500px;
        font-size: 0.85rem;
    }

    /* Contact Section */
    .contact {
        padding: 60px 0;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-info {
        text-align: center;
        margin-bottom: 2rem;
    }

    .contact-info h3 {
        font-size: 1.4rem;
        margin-bottom: 1rem;
    }

    .contact-info p {
        font-size: 1rem;
        line-height: 1.6;
    }

    .contact-note {
        padding: 1.5rem;
        margin-top: 1.5rem;
    }

    .contact-note h4 {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-group label {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 1rem;
        padding: 12px 15px;
    }

    /* Navigation Mobile */
    .nav-container {
        padding: 0 15px;
    }

    .nav-logo {
        font-size: 1.2rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 2rem;
        transition: left 0.3s ease;
        z-index: 999;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        padding: 1rem 0;
        font-size: 1.1rem;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid rgba(0,0,0,0.1);
    }

    .language-toggle {
        margin-top: 1rem;
    }

    .hamburger {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        z-index: 1001;
    }

    .hamburger .bar {
        width: 25px;
        height: 3px;
        background: #333;
        margin: 3px 0;
        transition: 0.3s;
        border-radius: 3px;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Footer */
    .footer {
        padding: 40px 0 20px;
    }

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .footer-links a {
        font-size: 0.9rem;
    }

    /* Utility Classes for Mobile */
    .mobile-hidden {
        display: none !important;
    }

    .mobile-full-width {
        width: 100% !important;
    }

    .mobile-center {
        text-align: center !important;
    }

    .mobile-small-text {
        font-size: 0.9rem !important;
    }

    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }

    /* Improve touch targets */
    .btn,
    .nav-link,
    .social-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}