/* submit 页面特有样式 */
body {
    background: url(../../images/bodybg.jpg) repeat;
    background-position: 0 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
}
.letter-container {
    max-width: 1200px;
    margin: 24px auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.07);
    overflow: hidden;
}
.letter-header {
    padding: 20px 28px;
    border-bottom: 1px solid #e8f3fc;
    background: linear-gradient(90deg,#f0f8ff 0%,#fff 100%);
    display: flex;
    align-items: baseline;
    gap: 14px;
}
.letter-header h2 {
    margin: 0;
    font-size: 20px;
    color: #333;
}
.letter-header .header-tip {
    font-size: 13px;
    color: #999;
}
.letter-form {
    padding: 28px;
}
.form-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}
.form-row:last-child {
    border-bottom: none;
}
.form-label {
    width: 80px;
    color: #666;
    font-size: 14px;
    flex-shrink: 0;
}
.form-label .required {
    color: #ff4d4f;
    margin-right: 2px;
}
.form-content {
    flex: 1;
}
.form-content input,
.form-content select,
.form-content textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #dcdcdc;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s, box-shadow 0.3s;
    box-sizing: border-box;
}
.form-content input:focus,
.form-content select:focus,
.form-content textarea:focus {
    outline: none;
    border-color: #00A5FF;
    box-shadow: 0 0 0 3px rgba(28, 49, 112, 0.1);
}
.form-content textarea {
    height: 150px;
    resize: vertical;
    line-height: 1.6;
}
.form-content select {
    cursor: pointer;
}
.type-grid {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.type-item {
    position: relative;
}
.type-item input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.type-item label {
    display: inline-block;
    padding: 6px 14px;
    background: #f5f7fa;
    border: 1px solid #e8ecf1;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 13px;
    color: #666;
}
.type-item input:checked + label {
    background: #00A5FF;
    border-color: #00A5FF;
    color: #fff;
}
.type-item label:hover {
    border-color: #00A5FF;
    color: #00A5FF;
}
.btn-row {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}
.btn {
    padding: 10px 30px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-primary:hover {
    background: #00A5FF;
}
.btn-default {
    background: #f5f7fa;
    color: #666;
    border: 1px solid #dcdcdc;
}
.btn-default:hover {
    background: #e8ecf1;
}
.letter-tip {
    background: #f0f5ff;
    border-left: 3px solid #00A5FF;
    border-radius: 4px;
    padding: 10px 15px;
    margin-bottom: 15px;
    font-size: 13px;
    color: #666;
}
.captcha-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}
.captcha-row .form-label {
    width: 80px;
    flex-shrink: 0;
}
.captcha-img {
    width: 120px;
    height: 38px;
    border: 1px solid #dcdcdc;
    border-radius: 4px;
    cursor: pointer;
    vertical-align: middle;
}
.captcha-input {
    width: 100px;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #dcdcdc;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}
.captcha-input:focus {
    outline: none;
    border-color: #00A5FF;
}
.captcha-refresh {
    font-size: 12px;
    color: #00A5FF;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
}
.captcha-refresh:hover { text-decoration: underline; }
.success-modal {
    display: none;
    text-align: center;
    padding: 30px 20px;
}
.success-modal .success-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: #52c41a;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.success-modal .success-icon::after {
    content: '!';
    font-size: 30px;
    color: #fff;
}
.success-modal h3 {
    margin: 0 0 10px;
    font-size: 18px;
    color: #333;
}
.success-modal p {
    color: #666;
    margin: 0 0 15px;
    font-size: 14px;
}
.success-modal .code-box {
    background: #f5f7fa;
    border: 1px dashed #dcdcdc;
    border-radius: 4px;
    padding: 12px;
    margin: 10px 0;
}
.success-modal .code-box .label {
    font-size: 12px;
    color: #999;
}
.success-modal .code-box .code {
    font-size: 20px;
    color: #00A5FF;
    font-weight: bold;
    letter-spacing: 2px;
}
.form-input-error {
    border-color: #ff4d4f !important;
}
.error-msg {
    color: #ff4d4f;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}
.field-hint {
    font-size: 12px;
    color: #999;
    margin-top: 6px;
}
/* 短信发送前的图形验证码弹窗 */
.sms-pop {
    padding: 20px 24px 24px;
}
.sms-pop .pop-tip {
    font-size: 13px;
    color: #888;
    margin-bottom: 14px;
}
.sms-pop .pop-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.sms-pop .pop-row input {
    flex: 1;
    height: 38px;
    padding: 0 12px;
    border: 1px solid #d0dce8;
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
}
.sms-pop .pop-row input:focus {
    outline: none;
    border-color: #00A5FF;
    box-shadow: 0 0 0 3px rgba(0,165,255,0.1);
}
.sms-pop .pop-btn {
    width: 100%;
    height: 38px;
    background: #00A5FF;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}
.sms-pop .pop-btn:hover { background: #0090e0; }
.sms-pop .pop-btn:active { background: #0077cc; }