/* ============================================================
   提交页面 (submit.php) 样式修复
   ============================================================ */

/* 表单容器 */
.submit-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px 0;
}
.submit-form .form-group {
    margin-bottom: 18px;
}
.submit-form label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    color: #2d3748;
    margin-bottom: 4px;
}
.submit-form label .required {
    color: #e53e3e;
    margin-left: 2px;
}
.submit-form input[type="text"],
.submit-form input[type="url"],
.submit-form textarea,
.submit-form select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #f7fafc;
    outline: none;
    color: #2d3748;
}
.submit-form input:focus,
.submit-form textarea:focus,
.submit-form select:focus {
    border-color: #4a6cf7;
    background: #ffffff;
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.08);
}
.submit-form textarea {
    min-height: 80px;
    resize: vertical;
}
.submit-form .captcha-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}
.submit-form .captcha-row input {
    flex: 1;
    min-width: 150px;
}
.submit-form .captcha-row img {
    height: 42px;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid #e2e8f0;
    background: #f7fafc;
}
.submit-form .btn-submit {
    background: #4a6cf7;
    color: #fff;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    width: 100%;
}
.submit-form .btn-submit:hover {
    background: #3a5cd9;
    transform: translateY(-1px);
}
.submit-form .btn-submit:active {
    transform: scale(0.98);
}
.submit-form .alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 16px;
    font-size: 14px;
    border: 1px solid transparent;
}
.submit-form .alert-success {
    background: #f0fff4;
    color: #22543d;
    border-color: #c6f6d5;
}
.submit-form .alert-error {
    background: #fff5f5;
    color: #9b2c2c;
    border-color: #fed7d7;
}

/* 提示信息 */
.submit-tips {
    background: #fffbeb;
    border-left: 4px solid #f6ad55;
    border-radius: 10px;
    padding: 16px 20px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #4a5568;
    line-height: 1.8;
}
.submit-tips p {
    margin: 0 0 4px 0;
}
.submit-tips p:last-child {
    margin-bottom: 0;
}
.submit-tips .tips-title {
    font-weight: 600;
    color: #1a202c;
}
.submit-tips a {
    color: #4a6cf7;
    text-decoration: none;
}
.submit-tips a:hover {
    text-decoration: underline;
}

/* 手机端适配 */
@media (max-width: 768px) {
    .submit-form {
        padding: 12px 0;
    }
    .submit-form .captcha-row {
        flex-wrap: wrap;
    }
    .submit-form .captcha-row img {
        width: 100%;
        height: 48px;
    }
    .submit-tips {
        padding: 12px 14px;
        font-size: 13px;
    }
}

/* 深色模式适配 */
body.dark-mode .submit-form label {
    color: #cbd5e0;
}
body.dark-mode .submit-form input[type="text"],
body.dark-mode .submit-form input[type="url"],
body.dark-mode .submit-form textarea,
body.dark-mode .submit-form select {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
}
body.dark-mode .submit-form input:focus,
body.dark-mode .submit-form textarea:focus,
body.dark-mode .submit-form select:focus {
    border-color: #4a6cf7;
    background: #3a4460;
}
body.dark-mode .submit-form .alert-success {
    background: #1a3a2a;
    color: #9ae6b4;
    border-color: #2f855a;
}
body.dark-mode .submit-form .alert-error {
    background: #3a1a1a;
    color: #fc8181;
    border-color: #9b2c2c;
}
body.dark-mode .submit-tips {
    background: #2a2a2a;
    border-left-color: #d69e2e;
    color: #cbd5e0;
}
body.dark-mode .submit-tips .tips-title {
    color: #e2e8f0;
}