/* ========================================
   SHXJ 驛站 - 2026 科技風藍色主題
   Neo-Cyberpunk + Dark Mode First Design
   ======================================== */

/* CSS Variables - 配色系統 */
:root {
    /* 主色調 - Electric Blue */
    --primary: #0ea5e9;
    --primary-light: #38bdf8;
    --primary-dark: #0284c7;
    --primary-glow: rgba(14, 165, 233, 0.4);
    
    /* 強調色 - Neon Cyan */
    --accent: #22d3ee;
    --accent-glow: rgba(34, 211, 238, 0.3);
    
    /* 漸層 */
    --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #22d3ee 50%, #a78bfa 100%);
    --gradient-text: linear-gradient(90deg, #38bdf8, #22d3ee, #a78bfa);
    --gradient-card: linear-gradient(145deg, rgba(14, 165, 233, 0.1), rgba(34, 211, 238, 0.05));
    
    /* 背景色 - Dark Mode First */
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    
    /* 文字色 */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* 邊框 */
    --border: rgba(148, 163, 184, 0.1);
    --border-glow: rgba(14, 165, 233, 0.3);
    
    /* 間距 */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    
    /* 圓角 */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    /* 動畫 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 動態背景 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(14, 165, 233, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14, 165, 233, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(167, 139, 250, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: glowMove 20s ease-in-out infinite;
}

@keyframes glowMove {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-5%, 5%); }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    position: relative;
    z-index: 1;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    background: rgba(10, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition-base);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    text-decoration: none;
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}


/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--space-2xl)) 0 var(--space-2xl);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary-light);
    margin-bottom: var(--space-md);
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

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

.hero-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

.btn-full {
    width: 100%;
}

/* Code Window */
.hero-visual {
    display: flex;
    justify-content: center;
}

.code-window {
    width: 100%;
    max-width: 480px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
                0 0 40px var(--primary-glow);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #eab308; }
.dot.green { background: #22c55e; }

.filename {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: monospace;
}

.code-body {
    padding: var(--space-md);
    font-family: 'Fira Code', 'SF Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-body code {
    display: block;
    white-space: pre;
}

.keyword { color: #c084fc; }
.variable { color: #38bdf8; }
.property { color: #22d3ee; }
.string { color: #4ade80; }
.function { color: #fbbf24; }
.comment { color: var(--text-muted); }

/* ========================================
   Section Common Styles
   ======================================== */
section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--primary);
    margin-bottom: var(--space-sm);
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background: linear-gradient(180deg, transparent, rgba(14, 165, 233, 0.02), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
    box-shadow: 0 10px 40px rgba(14, 165, 233, 0.1);
}

.service-card.featured {
    border-color: var(--primary);
    background: var(--gradient-card);
}

.featured-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    padding: 4px 12px;
    background: var(--gradient-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
}

.service-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--primary-light);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.service-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.service-features li {
    padding: 4px 12px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--primary-light);
}

.services-more {
    text-align: center;
    margin-top: var(--space-xl);
    padding: var(--space-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border);
    color: var(--text-secondary);
}

.services-more strong {
    color: var(--accent);
}


/* ========================================
   Features Section
   ======================================== */
.features {
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.feature-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.feature-item:hover {
    border-color: var(--border-glow);
    background: var(--bg-card-hover);
}

.feature-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.feature-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing {
    background: linear-gradient(180deg, transparent, rgba(14, 165, 233, 0.02), transparent);
}

.pricing-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
}

.pricing-single {
    display: flex;
    justify-content: center;
}

.pricing-single .pricing-card {
    max-width: 420px;
    width: 100%;
}

.pricing-dual {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    align-items: start;
}

.pricing-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-base);
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
}

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: 0 20px 60px rgba(14, 165, 233, 0.2);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--gradient-primary);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.pricing-header {
    padding: var(--space-lg) var(--space-lg) var(--space-md);
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.pricing-header h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.pricing-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pricing-body {
    padding: var(--space-lg);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: var(--space-md);
}

.currency {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-note {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.price-desc {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pricing-features svg {
    width: 18px;
    height: 18px;
    stroke: var(--accent);
    flex-shrink: 0;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    position: relative;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact-info h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-sm);
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.contact-method svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary-light);
}

.contact-method span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

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

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 16px;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    border-top: 1px solid var(--border);
    padding: var(--space-xl) 0 var(--space-lg);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

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

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

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .code-window {
        max-width: 400px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .pricing-dual {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        padding: var(--space-md);
        gap: 0;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        padding: var(--space-sm) 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}