/**
 * 留言/报名页面样式
 * 兼容手机验证码组件
 */

.guestbook-wrap {
    padding: 20px 30px 40px;
    background: #ffffff;
    border-radius: 4px;
}

.guestbook-title {
    font-size: 24px;
    font-weight: 700;
    color: #b71c1c;
    text-align: center;
    padding-bottom: 20px;
    margin-bottom: 25px;
    border-bottom: 2px solid #f0f0f0;
    letter-spacing: 4px;
}

/* 表单行 */
.form-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px 12px -10px;
}

.form-group {
    padding: 0 10px;
    margin-bottom: 6px;
    box-sizing: border-box;
}

.form-group.half {
    flex: 0 0 50%;
    max-width: 50%;
}

.form-group.full {
    flex: 0 0 100%;
    max-width: 100%;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
    line-height: 1.8;
}

.form-group label .required {
    color: #e60000;
    font-style: normal;
    font-weight: 700;
    margin-right: 2px;
}

/* 单选框组 */
.radio-group {
    padding-top: 6px;
}
.radio-group label {
    display: inline-block;
    margin-right: 20px;
    font-weight: 400;
    font-size: 14px;
    cursor: pointer;
}
.radio-group input[type="radio"] {
    margin-right: 4px;
    vertical-align: middle;
}

/* 表单控件 */
.form-control {
    width: 100%;
    height: 40px;
    padding: 6px 12px;
    font-size: 14px;
    color: #555;
    background-color: #fff;
    background-image: none;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.06);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: #b71c1c;
    outline: 0;
    box-shadow: 0 0 0 3px rgba(183, 28, 28, 0.12);
}

textarea.form-control {
    height: auto;
    resize: vertical;
    min-height: 80px;
}

select.form-control {
    appearance: auto;
    -webkit-appearance: auto;
    cursor: pointer;
}

/* 验证码组 */
.verify-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 15px;
    margin-top: 6px;
}

.verify-item {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.verify-img-input {
    width: 130px !important;
    flex-shrink: 0;
}

.verify-img-wrap {
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.verify-img {
    height: 34px;
    vertical-align: middle;
    cursor: pointer;
}

.verify-change {
    color: #b71c1c;
    cursor: pointer;
    font-size: 13px;
}

.verify-change:hover {
    text-decoration: underline;
}

.verify-code-input {
    width: 130px !important;
    flex-shrink: 0;
}

.verify-get-btn {
    display: inline-block;
    padding: 6px 14px;
    font-size: 14px;
    color: #fff;
    background-color: #b71c1c;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.3s;
}

.verify-get-btn:hover {
    background-color: #8b0000;
}

/* 提交 & 重置按钮 */
.submit-btn,
.reset-btn {
    display: inline-block;
    padding: 10px 48px;
    margin: 0 8px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 2px;
}

.submit-btn {
    color: #fff;
    background-color: #b71c1c;
    box-shadow: 0 2px 8px rgba(183, 28, 28, 0.30);
}

.submit-btn:hover {
    background-color: #8b0000;
    box-shadow: 0 4px 14px rgba(183, 28, 28, 0.40);
    transform: translateY(-1px);
}

.reset-btn {
    color: #666;
    background-color: #f5f5f5;
    border: 1px solid #ddd;
}

.reset-btn:hover {
    background-color: #e8e8e8;
    border-color: #ccc;
}

/* ===== 响应式适配 ===== */
@media screen and (max-width: 768px) {
    .guestbook-wrap {
        padding: 15px 16px 30px;
    }
    .guestbook-title {
        font-size: 20px;
        padding-bottom: 14px;
        margin-bottom: 18px;
    }
    .form-group.half {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .form-row {
        margin: 0 -6px 8px -6px;
    }
    .form-group {
        padding: 0 6px;
    }
    .form-control {
        height: 38px;
        font-size: 13px;
    }
    .verify-group {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .verify-item {
        flex-wrap: wrap;
    }
    .verify-img-input,
    .verify-code-input {
        width: 100% !important;
    }
    .submit-btn,
    .reset-btn {
        padding: 8px 30px;
        font-size: 14px;
        margin: 0 4px;
    }
}

@media screen and (max-width: 480px) {
    .guestbook-wrap {
        padding: 10px 10px 20px;
    }
    .guestbook-title {
        font-size: 17px;
        letter-spacing: 2px;
    }
    .form-group label {
        font-size: 13px;
    }
    .form-control {
        height: 36px;
        font-size: 13px;
        padding: 4px 10px;
    }
    .radio-group label {
        margin-right: 12px;
    }
    .submit-btn,
    .reset-btn {
        padding: 6px 20px;
        font-size: 13px;
        width: 100%;
        margin: 4px 0;
    }
    .form-row .form-group.full[style*="text-align:center"] {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
}