/* 非關鍵CSS樣式 - 延遲加載 */
.form-section {
    padding: 80px 0;
}

.form-container {
    background: linear-gradient(145deg, rgba(23, 42, 69, 0.9), rgba(15, 30, 50, 0.9));
    border-radius: 20px;
    padding: 50px;
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.5),
        inset 0 0 20px rgba(100, 255, 218, 0.1);
    border: 1px solid rgba(100, 255, 218, 0.2);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.form-container:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.05), transparent);
    z-index: -1;
}

.form-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 36px;
    color: var(--accent-color);
    position: relative;
}

.form-title:after {
    content: '';
    position: absolute;
    width: 120px;
    height: 4px;
    background: var(--accent-color);
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 0;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-size: 18px;
    color: var(--accent-color);
    font-weight: 500;
    display: flex;
    align-items: center;
}

.form-group label i {
    margin-right: 10px;
    font-size: 20px;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border-radius: 8px;
    border: 1px solid rgba(100, 255, 218, 0.3);
    background-color: rgba(10, 25, 47, 0.7);
    color: var(--text-color);
    font-size: 17px;
    font-family: inherit;
    transition: all 0.3s;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.4);
    background-color: rgba(10, 25, 47, 0.9);
}

.form-group textarea {
    min-height: 180px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 10px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(10, 25, 47, 0.5);
    padding: 10px 15px;
    border-radius: 6px;
    transition: all 0.3s;
}

.checkbox-item:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
}

.checkbox-item input {
    width: auto;
    transform: scale(1.2);
}

.radio-group {
    display: flex;
    gap: 25px;
    background: rgba(10, 25, 47, 0.5);
    padding: 15px;
    border-radius: 8px;
}

.radio-item {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    padding: 8px 15px;
    border-radius: 6px;
    transition: all 0.3s;
}

.radio-item:hover {
    background: rgba(100, 255, 218, 0.1);
}

.radio-item input {
    width: auto;
    transform: scale(1.2);
}

.btn {
    display: inline-block;
    background: transparent;
    color: var(--accent-color);
    padding: 16px 45px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    border: 2px solid var(--accent-color);
    transition: all 0.4s;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    font-size: 19px;
    cursor: pointer;
    width: 100%;
    margin-top: 20px;
    z-index: 1;
}

.btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(100, 255, 218, 0.2), transparent);
    transition: 0.5s;
    z-index: -1;
}

.btn:hover {
    background-color: rgba(100, 255, 218, 0.1);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.4);
}

.btn:hover:before {
    left: 100%;
}

.optional-text {
    font-size: 14px;
    color: var(--light-gray);
    margin-left: 5px;
    font-weight: normal;
}

.required::after {
    content: " *";
    color: #ff4d4d;
}

footer {
    background-color: var(--primary-color);
    padding: 48px 0 24px;
    text-align: center;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
    position: relative;
}

footer:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent-color), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: left;
    margin-bottom: 40px;
}

.footer-column h3 {
    color: var(--accent-color);
    margin-bottom: 20px;
    font-size: 22px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-color);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 16px;
    display: flex;
    align-items: center;
}

.footer-links a i {
    margin-right: 10px;
    font-size: 14px;
    color: var(--accent-color);
    transition: transform 0.3s;
}

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

.footer-links a:hover i {
    transform: translateX(5px);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-item i {
    color: var(--accent-color);
    font-size: 20px;
    margin-top: 4px;
}

.copyright {
    color: var(--light-gray);
    opacity: 0.7;
    font-size: 15px;
    margin-top: 40px;
    padding-top: 25px;
    border-top: 1px solid rgba(100, 255, 218, 0.1);
}

.esoteric-symbol {
    font-size: 22px;
    margin: 0 8px;
    color: var(--accent-color);
    display: inline-block;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .menu-toggle {
        display: block;
    }

    nav ul {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--primary-color);
        padding: 20px 0;
        border-bottom: 1px solid rgba(100, 255, 218, 0.1);
        z-index: 999;
        box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    }

    nav ul.show {
        display: flex;
        flex-direction: column;
        animation: fadeIn 0.3s ease;
    }

    nav ul li {
        margin: 0;
        padding: 12px 20px;
        border-bottom: 1px solid rgba(100, 255, 218, 0.05);
    }

    nav ul li a {
        display: block;
        padding: 8px 0;
        font-size: 18px;
    }

    /* Smooth transitions */
    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .form-grid {
        gap: 20px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .form-container {
        padding: 30px;
    }
    
    .form-title {
        font-size: 28px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .form-container {
        padding: 25px 20px;
    }
    
    .form-group label {
        font-size: 16px;
    }
    
    .form-group input, 
    .form-group select, 
    .form-group textarea {
        padding: 14px;
        font-size: 16px;
    }
    
    .btn {
        padding: 14px;
        font-size: 17px;
    }
    
    .logo {
        font-size: 26px;
    }
}