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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo h1 {
    font-size: 24px;
    color: #6c5ce7;
    font-weight: bold;
}

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

.nav-menu li {
    margin-left: 30px;
}

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

.nav-menu a:hover {
    color: #6c5ce7;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

/* Ad Banner */
.ad-banner {
    padding: 30px 0;
    background: #fff;
    border-bottom: 1px solid #eee;
}

.ad-container {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    min-height: 90px;
}

.ad-container ins {
    background-color: transparent;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* 測試用佔位符 - 大幅增強可見度 */
.ad-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 728px;
    height: 90px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa8a8 100%);
    border: 3px solid #ff4757;
    border-radius: 8px;
    color: #fff;
    font-size: 20px;
    line-height: 1.4;
    font-weight: bold;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}

.ad-placeholder small {
    font-size: 14px;
    color: #fff;
    font-weight: normal;
    margin-top: 5px;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: #fff;
    color: #6c5ce7;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

/* Button Group */
.button-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

/* Create Button */
.create-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.create-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0,184,148,0.4);
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

.about h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
    color: #333;
}

.about-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 18px;
    margin-bottom: 20px;
    line-height: 1.8;
}

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

.services h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

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

.service-card {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #6c5ce7;
}

.service-card p {
    color: #666;
    font-size: 16px;
}

/* Portfolio Section */
.portfolio {
    padding: 100px 0;
    background: #f8f9fa;
}

.portfolio h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

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

.portfolio-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    margin-bottom: 15px;
}

.portfolio-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.portfolio-item p {
    color: #666;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: #fff;
}

.contact h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
}

.contact-form textarea {
    resize: vertical;
}

.contact-form button {
    width: 100%;
    padding: 15px;
    background: #6c5ce7;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.contact-form button:hover {
    background: #5a4ad1;
}

/* Footer */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 30px 0;
}

footer p {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .hero-content h2 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 18px;
    }

    .about h2,
    .services h2,
    .portfolio h2,
    .contact h2 {
        font-size: 28px;
    }
}