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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-mark {
    font-size: 1.8rem;
    font-weight: bold;
}

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

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

.nav-menu a:hover {
    color: #ffd700;
}

.top-banner-wrap {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.top-banner-wrap h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.top-banner-wrap p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.ui-btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    margin: 0 6px;
}

.ui-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}

.layout-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.module-title {
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #333;
}

.prod-grid-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.prod-item-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

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

.prod-item-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.prod-item-card h3 {
    margin-bottom: 1rem;
    color: #333;
}

.prod-item-card p {
    color: #666;
}

.news-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.news-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.news-card:hover {
    transform: translateX(10px);
}

.news-card h3 {
    margin-bottom: 1rem;
    color: #333;
}

.time-label {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-card p {
    color: #666;
    line-height: 1.8;
}

.intro-panel {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.intro-panel h3 {
    margin-bottom: 1.5rem;
    color: #333;
}

.intro-panel p {
    margin-bottom: 1.5rem;
    color: #666;
    line-height: 1.8;
}

.feedback-form {
    background: white;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.feedback-form input,
.feedback-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
}

.feedback-form textarea {
    height: 150px;
    resize: vertical;
}

.feedback-form button {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s;
}

.feedback-form button:hover {
    transform: translateY(-3px);
}

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

.contact-cell {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.contact-cell i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #667eea;
}

footer {
    background: #333;
    color: white;
    padding: 3rem 2rem;
    text-align: center;
}

footer p {
    margin-bottom: 1rem;
}

footer a {
    color: #ffd700;
    text-decoration: none;
}

@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
    }
    
    .top-banner-wrap h1 {
        font-size: 2rem;
    }
    
    .layout-wrap {
        padding: 2rem 1rem;
    }
}

#float-download-bar {
    position: fixed;
    bottom: 12px;
    left: 10px;
    right: 10px;
    background: #ffffff;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: 999999;
    font-family: -apple-system, system-ui, sans-serif;
}
.bar-left-part { display: flex; align-items: center; gap: 8px; }
.bar-icon-box {
    width: 36px; height: 36px; background: #000; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.bar-text-group h4 { margin: 0; font-size: 13px; font-weight: bold; color: #000; line-height: 1.2; }
.bar-text-group p { margin: 0; font-size: 10px; color: #999; }
.bar-right-part { display: flex; align-items: center; gap: 6px; margin-right: 15px; }
.btn-dark-style {
    background: #000;
    color: #fff !important;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
}
.btn-outline-style {
    background: #fff;
    color: #000 !important;
    border: 1px solid #000;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    text-decoration: none;
}
.bar-close-btn {
    position: absolute;
    right: 6px;
    top: 4px;
    color: #ddd;
    font-size: 16px;
    cursor: pointer;
}