/* ================================================
   在地網站 - Landing Page Styles
   Color Palette:
   - Primary: #1B2D4F (deep blue)
   - Background: #FAFBFC (white)
   - Accent: #3B82F6 (tech blue)
   - Success: #10B981 (green)
   ================================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #1B2D4F;
    --color-primary-light: #2A4470;
    --color-accent: #3B82F6;
    --color-accent-light: #60A5FA;
    --color-success: #10B981;
    --color-success-light: #34D399;
    --color-bg: #FAFBFC;
    --color-bg-alt: #F1F5F9;
    --color-text: #1A1A1A;
    --color-text-secondary: #64748B;
    --color-text-muted: #94A3B8;
    --color-border: #E2E8F0;
    --color-white: #FFFFFF;
    --color-danger: #EF4444;

    /* Typography */
    --font-sans: 'Noto Sans TC', 'DM Sans', system-ui, -apple-system, sans-serif;
    --font-en: 'DM Sans', system-ui, sans-serif;

    /* Font Weights */
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: var(--fw-regular);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
}

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

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.3;
    font-weight: var(--fw-bold);
}

.section-title {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: var(--fw-semibold);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

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

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

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

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

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ================================================
   Navbar
   ================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 251, 252, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: var(--fw-bold);
    font-size: 1.25rem;
    color: var(--color-primary);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-cta {
    padding: 0.5rem 1rem;
    background: var(--color-accent);
    color: var(--color-white) !important;
    border-radius: var(--radius-md);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.mobile-nav-links a {
    font-size: 1.125rem;
    font-weight: var(--fw-medium);
    color: var(--color-text);
    padding: var(--space-sm) 0;
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.hero-shape-1 {
    width: 600px;
    height: 600px;
    top: -200px;
    right: -200px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
}

.hero-shape-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
}

.hero-shape-3 {
    width: 300px;
    height: 300px;
    top: 40%;
    left: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    text-align: center;
    padding: var(--space-3xl) 0;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(59, 130, 246, 0.2);
    z-index: -1;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

/* ================================================
   Pain Points Section
   ================================================ */
.pain-points {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
}

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

.pain-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

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

.pain-card-alert {
    background: linear-gradient(135deg, #FEF2F2 0%, #FEE2E2 100%);
    border-color: #FECACA;
}

.pain-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.pain-stat {
    font-size: 3.5rem;
    font-weight: var(--fw-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-md);
    font-family: var(--font-en);
}

.pain-card-alert .pain-stat {
    color: var(--color-danger);
}

.pain-text {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.pain-text strong {
    color: var(--color-text);
}

/* ================================================
   Features Section
   ================================================ */
.features {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-xl);
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-lg);
}

.feature-title {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.feature-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ================================================
   Pricing Section
   ================================================ */
.pricing {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

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

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

.pricing-card-featured {
    background: var(--color-white);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.pricing-card-featured:hover {
    transform: scale(1.02) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-accent);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: var(--fw-semibold);
}

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

.pricing-name {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 4px;
}

.price-currency {
    font-size: 1rem;
    font-weight: var(--fw-medium);
    color: var(--color-text-secondary);
    margin-top: 8px;
}

.price-amount {
    font-size: 2.75rem;
    font-weight: var(--fw-bold);
    color: var(--color-primary);
    font-family: var(--font-en);
    line-height: 1;
}

.pricing-features {
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-size: 0.9375rem;
    color: var(--color-text);
}

.pricing-features .check {
    color: var(--color-success);
    font-weight: var(--fw-bold);
}

.pricing-addon {
    color: var(--color-text-muted) !important;
    font-size: 0.875rem !important;
    margin-top: var(--space-sm);
    padding-top: var(--space-sm) !important;
    border-top: 1px dashed var(--color-border);
}

.pricing-highlight {
    color: var(--color-success) !important;
    font-weight: var(--fw-semibold);
}

.pricing-note {
    text-align: center;
    font-size: 1rem;
    color: var(--color-text-secondary);
}

.pricing-note strong {
    color: var(--color-accent);
}

/* ================================================
   Portfolio Section
   ================================================ */
/* ================================================
   FAQ Section
   ================================================ */
.faq {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

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

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: rgba(59, 130, 246, 0.3);
}

.faq-item.active {
    border-color: var(--color-accent);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.1);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-tc);
    font-size: 1.0625rem;
    font-weight: var(--fw-semibold);
    color: var(--color-primary);
    line-height: 1.5;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-toggle {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    color: var(--color-accent);
    font-size: 1.25rem;
    font-weight: var(--fw-bold);
    transition: all var(--transition-base);
}

.faq-item.active .faq-toggle {
    background: var(--color-accent);
    color: var(--color-white);
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 var(--space-xl) var(--space-lg);
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

/* ================================================
   Process Section
   ================================================ */
.process {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
}

.process-timeline {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    right: 0;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: var(--fw-bold);
    font-family: var(--font-en);
}

.step-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    display: inline-block;
    padding: var(--space-lg);
    background: var(--color-bg);
    border-radius: 50%;
}

.step-title {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.step-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.process-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-success));
    margin-top: 70px;
    flex-shrink: 0;
}

/* ================================================
   Contact Section
   ================================================ */
.contact {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-white) 100%);
}

.contact-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-form-wrapper {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
}

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

.form-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: var(--fw-medium);
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

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

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

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-detail {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.contact-value {
    font-size: 1.0625rem;
    font-weight: var(--fw-medium);
    color: var(--color-primary);
}

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

.line-qr {
    text-align: center;
    padding: var(--space-xl);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.qr-placeholder {
    width: 140px;
    height: 140px;
    margin: 0 auto var(--space-md);
    background: var(--color-bg);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: var(--fw-medium);
}

.qr-hint {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* ================================================
   Footer
   ================================================ */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-2xl) 0;
}

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

.footer .logo-icon {
    color: var(--color-accent-light);
}

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-md);
}

.footer-copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ================================================
   Reveal Animation
   ================================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================
   Responsive Design
   ================================================ */

/* Tablet and below */
@media (max-width: 1024px) {
    .pricing-card-featured {
        transform: none;
    }

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

    .faq-question {
        font-size: 1rem;
        padding: var(--space-md) var(--space-lg);
    }

    .faq-answer p {
        padding: 0 var(--space-lg) var(--space-md);
    }
}

/* Tablet */
@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .pain-stat {
        font-size: 2.75rem;
    }

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

    .process-timeline {
        flex-direction: column;
        align-items: center;
    }

    .process-connector {
        width: 2px;
        height: 40px;
        margin: 0;
    }

    .process-step {
        max-width: 100%;
    }

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

    .contact-info {
        order: -1;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .pain-cards {
        grid-template-columns: 1fr;
    }

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

    .faq-question {
        font-size: 0.9375rem;
        padding: var(--space-sm) var(--space-md);
    }

    .faq-answer p {
        padding: 0 var(--space-md) var(--space-sm);
        font-size: 0.875rem;
    }
}