/* ===== 客户留言 - 蓝色科技风 ===== */
:root {
    --mc-primary: #1e6bff;
    --mc-primary-deep: #0a3fd6;
    --mc-cyan: #21d4fd;
    --mc-text-main: #1a2b4a;
    --mc-text-sub: #5b6b88;
    --mc-shadow: 0 10px 40px rgba(30, 107, 255, .15);
    --mc-radius: 14px;
}

* {
    box-sizing: border-box;
}

/* Banner */
.m-top {
    position: relative;
    width: 100%;
    min-height: 360px;
    display: flex;
    justify-content: center;
    align-items: end;
    padding-bottom: 5vh;
    overflow: hidden;
    background: linear-gradient(120deg, #04124a 0%, #0a3fd6 55%, #21d4fd 130%);
    background-image: url('../../static/img/chat-image.jpg'); /*设置边框宽度*/
    background-size: 100% 100%;
}

.m-top::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(33, 212, 253, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 212, 253, .08) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
}

.m-top-ct {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 24px;
}

.m-top-ct h1 {
    font-size: clamp(26px, 4vw, 46px);
    font-weight: 800;
    margin: 0;
    letter-spacing: 2px;
    text-shadow: 0 4px 30px rgba(33, 212, 253, .6);
}

.m-top-ct .m-hr {
    width: 70px;
    height: 4px;
    margin: 22px auto 16px;
    border: 0;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--mc-cyan), var(--mc-primary));
    box-shadow: 0 0 24px rgba(33, 212, 253, .5);
}

.m-top-ct p {
    font-size: clamp(13px, 1.4vw, 17px);
    color: rgba(255, 255, 255, .9);
    margin: 0;
}

/* 主体 */
.m-section {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 70px 0;
}

.m-title {
    text-align: center;
    margin-bottom: 46px;
}

.m-title h2 {
    font-size: clamp(22px, 2.6vw, 32px);
    font-weight: 700;
    color: var(--mc-text-main);
    margin: 0 0 14px;
}

.m-title h2::after {
    content: "";
    display: block;
    width: 54px;
    height: 4px;
    margin: 16px auto 0;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--mc-primary), var(--mc-cyan));
}

.m-title p {
    font-size: 13px;
    color: #9aa6bd;
    letter-spacing: 2px;
    margin: 0;
    text-transform: uppercase;
}

/* 左右布局 */
.m-body {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 36px;
    align-items: stretch;
}

/* 左侧联系信息卡（深蓝渐变） */
.m-info {
    position: relative;
    border-radius: var(--mc-radius);
    overflow: hidden;
    background: linear-gradient(135deg, #0a3fd6 0%, #04124a 100%);
    padding: 40px 34px;
    color: #fff;
    box-shadow: var(--mc-shadow);
    background-image: url('../../static/img/chat_38.jpg');
    background-size: 100% 100%;

}

.m-info::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 80% 20%, rgba(33, 212, 253, .35), transparent 40%),
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: auto, 34px 34px, 34px 34px;
}

.m-info > * {
    position: relative;
    z-index: 1;
}

.m-info h3 {
    font-size: 22px;
    margin: 0 0 8px;
    font-weight: 700;
}

.m-info .sub {
    font-size: 13px;
    color: var(--mc-cyan);
    margin: 0 0 28px;
    letter-spacing: 1px;
}

.m-info-list {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.m-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.m-info-item .ico {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(33, 212, 253, .18);
    border: 1px solid rgba(33, 212, 253, .4);
    color: var(--mc-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
}

.m-info-item .txt h4 {
    font-size: 13px;
    color: rgba(255, 255, 255, .7);
    margin: 0 0 4px;
    font-weight: 400;
}

.m-info-item .txt p {
    font-size: 15px;
    color: #fff;
    margin: 0;
    line-height: 1.6;
}

/* 右侧表单 */
.m-form-card {
    background: #fff;
    border-radius: var(--mc-radius);
    box-shadow: var(--mc-shadow);
    padding: 40px 38px;
}

.m-form-row {
    display: grid;
    gap: 20px;
    margin-bottom: 20px;
}

.m-form-group {
    margin-bottom: 20px;
}

.m-form-group label {
    display: block;
    font-size: 14px;
    color: var(--mc-text-main);
    margin-bottom: 8px;
    font-weight: 500;
}

.m-form-group label .req {
    color: #ff5b5b;
    margin-left: 2px;
}

.m-form-group input,
.m-form-group select,
.m-form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--mc-text-main);
    background: #f7faff;
    border: 1px solid #e3ecff;
    border-radius: 10px;
    outline: none;
    transition: all .25s;
    font-family: inherit;
}

.m-form-group textarea {
    resize: vertical;
    min-height: 200px;
}

.m-form-group input:focus,
.m-form-group select:focus,
.m-form-group textarea:focus {
    border-color: var(--mc-primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(30, 107, 255, .12);
}

.m-form-group input.err,
.m-form-group textarea.err {
    border-color: #ff5b5b;
    background: #fff5f5;
}

.m-form-submit {
    text-align: center;
    margin-top: 8px;
}

.m-form-submit button {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-deep));
    border: 0;
    border-radius: 30px;
    cursor: pointer;
    transition: all .3s;
    box-shadow: 0 8px 22px rgba(30, 107, 255, .35);
}

.m-form-submit button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(30, 107, 255, .45);
}

.m-form-submit button:disabled {
    opacity: .65;
    cursor: not-allowed;
    transform: none;
}

/* 提示框 */
.m-tip {
    display: none;
    margin-top: 18px;
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 14px;
    text-align: center;
}

.m-tip.ok {
    display: block;
    background: rgba(60, 200, 130, .12);
    color: #2e9e63;
    border: 1px solid rgba(60, 200, 130, .3);
}

.m-tip.fail {
    display: block;
    background: rgba(255, 91, 91, .1);
    color: #e23b3b;
    border: 1px solid rgba(255, 91, 91, .3);
}

/* 响应式 */
@media (max-width: 900px) {
    .m-body {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .m-section {
        padding: 44px 0;
    }

    .m-form-card {
        padding: 26px 20px;
    }

    .m-form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .m-info {
        padding: 30px 24px;
    }
}


a:hover {
    text-decoration: none;
    color: #dddffa !important;
}