/* 基礎樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 導航欄 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #6366f1;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #6366f1;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主頁區域 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    padding-top: 80px;
    color: white;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: #fff;
    color: #6366f1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: #fff;
    color: #6366f1;
}

/* 手機模型 */
.phone-mockup {
    width: 300px;
    height: 600px;
    background: #333;
    border-radius: 30px;
    padding: 20px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.app-preview {
    text-align: center;
    color: white;
}

.app-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.app-preview h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* 功能區域 */
.features {
    padding: 6rem 0;
    background: #f8fafc;
}

.features h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 4rem;
    color: #1e293b;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-card p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    color: #64748b;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.feature-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* 聲音預覽區域 */
.sounds-preview {
    padding: 6rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.sounds-preview h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.sounds-preview p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.sounds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.sound-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    cursor: pointer;
}

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

.sound-item i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

/* 下載區域 */
.download {
    padding: 6rem 0;
    background: #1e293b;
    color: white;
    text-align: center;
}

.download h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.download p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: #333;
    color: white;
    padding: 1rem 2rem;
    border-radius: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: #444;
    transform: translateY(-2px);
}

.download-btn i {
    font-size: 2rem;
}

.download-btn div {
    text-align: left;
}

.download-btn span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-btn strong {
    font-size: 1.1rem;
    display: block;
}

/* 頁腳 */
.footer {
    background: #0f172a;
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    color: #6366f1;
}

.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Contact Page Styles */
.contact-page {
    padding: 8rem 0 4rem;
    background: #f8fafc;
    min-height: 100vh;
}

.contact-header {
    text-align: center;
    margin-bottom: 4rem;
}

.contact-header h1 {
    font-size: 3rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.contact-header p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.contact-icon i {
    font-size: 2rem;
    color: white;
}

.contact-card h2 {
    font-size: 2rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.email-contact {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    margin: 2rem 0;
}

.email-link {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    transition: transform 0.3s ease;
}

.email-link:hover {
    transform: scale(1.05);
}

.contact-info h3,
.response-time h3 {
    color: #1e293b;
    margin: 2rem 0 1rem;
    font-size: 1.3rem;
}

.contact-list {
    list-style: none;
    margin: 1rem 0;
}

.contact-list li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: #64748b;
}

.contact-list i {
    color: #10b981;
    font-size: 0.9rem;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.quick-links,
.social-media,
.app-info {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.quick-links h3,
.social-media h3,
.app-info h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.quick-links ul {
    list-style: none;
}

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

.quick-links a {
    color: #64748b;
    text-decoration: none;
    transition: color 0.3s ease;
}

.quick-links a:hover {
    color: #6366f1;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #64748b;
    text-decoration: none;
    padding: 0.8rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #f1f5f9;
    color: #6366f1;
}

.social-link i {
    font-size: 1.2rem;
    width: 20px;
}

/* Legal Pages Styles */
.legal-page {
    padding: 8rem 0 4rem;
    background: #f8fafc;
    min-height: 100vh;
}

.legal-header {
    text-align: center;
    margin-bottom: 4rem;
}

.legal-header h1 {
    font-size: 3rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.last-updated {
    color: #64748b;
    font-style: italic;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.legal-section {
    margin-bottom: 3rem;
}

.legal-section h2 {
    color: #1e293b;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}

.legal-section h3 {
    color: #374151;
    font-size: 1.3rem;
    margin: 1.5rem 0 0.8rem;
}

.legal-section p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-section ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.legal-section li {
    color: #64748b;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.legal-section a {
    color: #6366f1;
    text-decoration: none;
    font-weight: 500;
}

.legal-section a:hover {
    text-decoration: underline;
}

.legal-navigation {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

/* Navigation Active State */
.nav-menu a.active {
    color: #6366f1;
    font-weight: 600;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .features h2,
    .sounds-preview h2,
    .download h2 {
        font-size: 2rem;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }

    /* Contact Page Mobile */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-header h1,
    .legal-header h1 {
        font-size: 2.5rem;
    }

    .contact-card,
    .legal-content {
        padding: 2rem;
    }

    .email-link {
        font-size: 1.2rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .legal-navigation {
        flex-direction: column;
        align-items: center;
    }
}