/* 二维码生成器样式 */
.qr-section {
    min-height: 100vh;
    padding: 120px 0 80px;
    background: var(--dark-bg);
}

.qr-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 40px rgba(0,0,0,.1);
    backdrop-filter: blur(10px);
}

.qr-container h2 {
    text-align: center;
    margin-bottom: .5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.5rem;
    font-weight: 700;
}

.qr-subtitle {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    font-size: 1.2rem;
}

/* 类型选择按钮 */
.qr-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.type-btn {
    padding: 1rem;
    background: var(--dark-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-gray);
    cursor: pointer;
    transition: all .3s ease;
    text-align: center;
    font-weight: 500;
    font-size: 0.95rem;
}

.type-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
}

.type-btn.active {
    background: var(--gradient-accent);
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(0,198,255,.3);
}

/* 表单容器 */
.form-container {
    margin-bottom: 2rem;
}

.input-group {
    animation: fadeIn .5s ease;
}

.input-group.hidden {
    display: none;
}

.input-group label {
    display: block;
    margin-bottom: .8rem;
    color: var(--text-gray);
    font-weight: 500;
    font-size: 1.1rem;
}

.input-group input,
.input-group textarea,
.input-group select {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    background: var(--dark-bg);
    color: var(--text-light);
    border-radius: 12px;
    outline: none;
    transition: all .3s ease;
    font-family: inherit;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(0,198,255,.2);
}

.input-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* 设置组 */
.settings-group {
    background: linear-gradient(135deg, rgba(0,198,255,.05), rgba(0,198,255,.02));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.settings-group h3 {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 1.2rem;
    font-weight: 600;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.setting-row:last-child {
    margin-bottom: 0;
}

.setting-row label {
    color: var(--text-gray);
    font-weight: 500;
}

.setting-row select {
    width: auto;
    min-width: 120px;
    padding: .6rem 1rem;
    margin: 0;
    border-radius: 8px;
}

/* 生成按钮 */
.generate-btn {
    width: 100%;
    padding: 1.2rem;
    margin-bottom: 2rem;
    font-size: 1.2rem;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-color), #00a8e8);
    color: white;
    cursor: pointer;
    transition: all .4s ease;
    box-shadow: 0 8px 25px rgba(0,198,255,.4);
}

.generate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0,198,255,.5);
}

.generate-btn i {
    margin-right: .5rem;
}

/* 结果容器 */
.result-container {
    display: none;
    animation: fadeIn .5s ease;
}

.result-container.show {
    display: block;
}

.qr-display {
    text-align: center;
    margin-bottom: 1.5rem;
    padding: 2rem;
    background: var(--dark-bg);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

#qr-code {
    display: inline-block;
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,.1);
}

.qr-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.download-btn,
.copy-btn {
    padding: .8rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all .3s ease;
    display: flex;
    align-items: center;
    gap: .5rem;
}

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

.download-btn:hover {
    background: #00a8e8;
    transform: scale(1.05);
}

.copy-btn {
    background: var(--success-color);
    color: white;
}

.copy-btn:hover {
    background: #28a745;
    transform: scale(1.05);
}

/* 返回链接 */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    margin-top: 2rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    transition: all .3s ease;
}

.back-link:hover {
    gap: .8rem;
    color: #00a8e8;
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .qr-container {
        padding: 2rem;
        margin: 0 1rem;
    }
    
    .qr-types {
        grid-template-columns: repeat(2, 1fr);
        gap: .8rem;
    }
    
    .setting-row {
        flex-direction: column;
        align-items: flex-start;
        gap: .5rem;
    }
    
    .qr-actions {
        flex-direction: column;
    }
    
    .download-btn,
    .copy-btn {
        width: 100%;
        justify-content: center;
    }
}