/* 定制游戏表单样式 - 黑色主题 */
.custom-game-section {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.form-container {
    background: linear-gradient(145deg, #1e1e1e, #2a2a2a);
    border-radius: 16px;
    padding: 50px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
    border: 1px solid #333;
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 40%, rgba(255, 68, 68, 0.05) 50%, transparent 60%);
    animation: formShine 6s infinite;
}

@keyframes formShine {
    0%, 100% { background-position: -200% 0; }
    50% { background-position: 200% 0; }
}

.form-title {
    font-size: 32px;
    color: #fff;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    background: linear-gradient(45deg, #ff4444, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 8px rgba(255, 68, 68, 0.3);
}

.demand-form {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.form-group {
    margin-bottom: 30px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: #e0e0e0;
    font-size: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: rgba(30, 30, 30, 0.8);
    border: 2px solid #444;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s;
    box-sizing: border-box;
    color: #e0e0e0;
    backdrop-filter: blur(10px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #888;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #ff4444;
    box-shadow: 0 0 0 4px rgba(255, 68, 68, 0.2);
    background: rgba(40, 40, 40, 0.9);
    transform: translateY(-2px);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ff4444;
    box-shadow: 0 0 0 4px rgba(255, 68, 68, 0.2);
}

.error-message {
    color: #ff6b6b;
    font-size: 14px;
    margin-top: 8px;
    display: block;
    min-height: 20px;
    font-weight: 500;
    text-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.submit-button {
    width: 100%;
    background: linear-gradient(135deg, #ff4444, #ff6b6b);
    color: white;
    border: none;
    padding: 18px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(255, 68, 68, 0.4);
}

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

.submit-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 68, 68, 0.6);
}

.submit-button:hover::before {
    left: 100%;
}

.submit-button:active {
    transform: translateY(-1px);
}

.submit-button:disabled {
    background: #444;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    color: #888;
}

.submit-button:disabled::before {
    display: none;
}

.submit-button.submitted {
    background: linear-gradient(135deg, #28a745, #20c997);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.submit-button.submitted:hover {
    box-shadow: 0 10px 30px rgba(40, 167, 69, 0.6);
}

/* 输入框聚焦时的发光效果 */
.form-group:focus-within label {
    color: #ff4444;
    text-shadow: 0 0 10px rgba(255, 68, 68, 0.5);
}