.support_box .fl_l {
    width: 580px;
    background: #fff;
    height: 374px;
    padding: 36px 54px;
    box-shadow: 0px 0px 15px 0px rgba(48, 50, 71, 0.1);
}

.support_box .tit {
    font-family: SourceHanSansCN;
    font-weight: 500;
    font-size: 32px;
    line-height: 40px;
    text-align: center;
    color: rgba(7, 29, 66, 1);
    margin-bottom: 60px;
    margin-top: 90px;
}

.support_box .p2,
.support_box .p3 {
    font-family: SourceHanSansCN;
    font-weight: 400;
    font-size: 14px;
    line-height: 30px;
    margin-top: 24px;
}

.support_box .p2 {
    color: rgba(0, 0, 0, 1);
}

.support_box .p3 {
    color: rgba(0, 0, 0, 0.65);
}

.support_box .p1 {
    color: rgba(7, 29, 66, 1);
    font-family: SourceHanSansCN;
    font-weight: 500;
    font-size: 20px;
    line-height: 24px;
}

.support_box .btn {
    display:inline-block;
    width: 112px;
    height: 40px;
    border-radius: 4px;
    background: rgba(35, 128, 255, 1);
    color: #fff;
    font-family: SourceHanSansCN;
    font-weight: 500;
    font-size: 16px;
    line-height: 40px;
    text-align: center;
}
    .support_box .btn:hover {
    opacity:0.9
    }
.support_box .c_blue:hover {
    text-decoration:underline;
    cursor:pointer;
}



    .help_section {
        margin-top: 30px;
        padding: 30px;
        border-radius: 5px;
        background: rgba(35, 128, 255, 0.04);
        border: 1px solid rgba(35, 128, 255, 0.15);
    }
    .help_section .help_title {
        font-size: 20px;
        color: #2380ff;
        margin-bottom: 10px;
    }
    .help_section .help_desc {
        color: rgba(0, 0, 0, 0.65);
        margin-bottom: 20px;
        line-height: 1.6;
    }
    .help_section .help_links {
        display: flex;
        gap: 24px;
        flex-wrap: wrap;
    }
    .help_section .help_links a {
        display: inline-flex;
        align-items: center;
        padding: 8px 20px;
        border-radius: 4px;
        font-size: 14px;
        text-decoration: none;
        transition: all 0.2s;
    }
    .help_section .help_links a.link_doc {
        background: #2380ff;
        color: #fff;
    }
    .help_section .help_links a.link_doc:hover {
        background: #1a6fe0;
    }
    .help_section .help_links a.link_contact {
        background: #fff;
        color: #2380ff;
        border: 1px solid #2380ff;
    }
    .help_section .help_links a.link_contact:hover {
        background: rgba(35, 128, 255, 0.08);
    }
    .help_section .help_links a.link_faq {
        background: #fff;
        color: rgba(0, 0, 0, 0.45);
        border: 1px solid rgba(0, 0, 0, 0.15);
        cursor: not-allowed;
    }


    /* 帮助反馈弹出层 */
    .help_section .contact-overlay {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.45);
        z-index: 19999;
        align-items: center;
        justify-content: center;
    }
    .help_section .contact-overlay.active { display: flex; }
    .help_section .contact-layer {
        background: #fff;
        border-radius: 4px;
        width: 660px;
        max-width: 100%;
        box-shadow: 0 8px 40px rgba(0,0,0,0.15);
        overflow: hidden;
    }
    .help_section .contact-layer-title {
        position: relative;
        padding: 22px 48px 0 24px;
        height: 60px;
        font: 15px/1 "SourceHanSansCN", "Source Han Sans SC", "Microsoft YaHei", Arial, sans-serif;
        font-weight: 600;
        color: #071D42;
        border-bottom: 1px solid #e8e8e8;
        cursor: move;
        user-select: none;
        letter-spacing: 0.3px;
    }
    .help_section .contact-layer-close {
        position: absolute;
        right: 14px;
        top: 14px;
        width: 30px;
        height: 30px;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        color: #9099a8;
        border-radius: 4px;
        transition: all 0.15s;
        font-size: 20px;
        font-family: Arial, sans-serif;
        line-height: 1;
        user-select: none;
    }
    .help_section .contact-layer-close:hover {
        background: #f0f2f5;
        color: #1a1a2e;
    }
    .help_section .contact-layer-content { padding: 20px 24px 0; }
    .help_section .contact-form-item {
        display: flex;
        margin-bottom: 16px;
        align-items: flex-start;
    }
    .help_section .contact-form-label {
        width: 110px;
        min-width: 110px;
        font: 13px/20px "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        font-weight: 700;
        color: rgba(10, 44, 99, 0.65);
        padding: 8px 16px 0 0;
        text-align: right;
    }
    .help_section .contact-form-label .required { color: #e54545; margin-right: 2px; }
    .help_section .contact-form-input-block { flex: 1; }
    .help_section .contact-form-input {
        width: 100%;
        max-width: 420px;
        height: 36px;
        padding: 0 12px;
        border: 1px solid #d9dde6;
        border-radius: 4px;
        font: 14px/36px "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        color: #1a1a2e;
        outline: none;
        transition: border-color 0.2s, box-shadow 0.2s;
        background: #fff;
    }
    .help_section .contact-form-input:focus {
        border-color: #287EFE;
        box-shadow: 0 0 0 3px rgba(40, 126, 254, 0.1);
    }
    .help_section .contact-form-input::placeholder { color: #aab0bc; font-size: 13px; }
    .help_section .contact-form-textarea {
        width: 95%;
        height: 88px;
        padding: 8px 12px;
        border: 1px solid #d9dde6;
        border-radius: 4px;
        font: 14px/1.6 "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        color: #1a1a2e;
        outline: none;
        resize: vertical;
        transition: border-color 0.2s, box-shadow 0.2s;
        background: #fff;
    }
    .help_section .contact-form-textarea:focus {
        border-color: #287EFE;
        box-shadow: 0 0 0 3px rgba(40, 126, 254, 0.1);
    }
    .help_section .contact-form-textarea::placeholder { color: #aab0bc; font-size: 13px; }
    .help_section .contact-checkbox-group { padding: 2px 0 0; }
    .help_section .contact-checkbox-item {
        display: flex;
        align-items: center;
        margin-bottom: 10px;
        cursor: pointer;
        font: 14px/1.5 "SourceHanSansCN", "Source Han Sans SC", "Microsoft YaHei", Arial, sans-serif;
        color: rgba(0,0,0,0.85);
        user-select: none;
        transition: color 0.15s;
    }
    .help_section .contact-checkbox-item:hover { color: #287EFE; }
    .help_section .contact-checkbox-item input[type="checkbox"] { display: none; }
    .help_section .contact-check-custom {
        width: 18px;
        height: 18px;
        border: 2px solid #c8ccd6;
        border-radius: 3px;
        margin-right: 10px;
        position: relative;
        flex-shrink: 0;
        transition: all 0.2s;
    }
    .help_section .contact-checkbox-item input[type="checkbox"]:checked + .contact-check-custom {
        background: #287EFE;
        border-color: #287EFE;
    }
    .help_section .contact-checkbox-item input[type="checkbox"]:checked + .contact-check-custom::after {
        content: '';
        position: absolute;
        left: 4px;
        top: 1px;
        width: 7px;
        height: 11px;
        border: solid #fff;
        border-width: 0 2.5px 2.5px 0;
        transform: rotate(45deg);
    }
    .help_section .contact-checkbox-item:hover .contact-check-custom { border-color: #287EFE; }
    .help_section .contact-other-wrap {
        display: inline-flex;
        align-items: center;
    }
    .help_section .contact-other-input {
        width: 180px;
        height: 28px;
        padding: 0 6px;
        border: none;
        border-bottom: 1.5px solid #d9dde6;
        font: 14px/28px "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        color: #1a1a2e;
        outline: none;
        margin-left: 6px;
        transition: border-color 0.2s;
        background: transparent;
    }
    .help_section .contact-other-input:focus { border-color: #287EFE; }
    .help_section .contact-other-input::placeholder { color: #aab0bc; font-size: 13px; }
    .help_section .contact-layer-btn {
        text-align: right;
        padding: 12px 24px 20px;
        border-top: 1px solid #f0f2f5;
        margin-top: 6px;
    }
    .help_section .contact-layer-btn a {
        display: inline-block;
        height: 36px;
        line-height: 36px;
        padding: 0 22px;
        margin: 0 0 0 8px;
        border-radius: 4px;
        font: 14px/36px "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        cursor: pointer;
        text-decoration: none;
        vertical-align: top;
        transition: all 0.2s;
        border: none;
    }
    .help_section .contact-btn-cancel {
        background: #f5f7fa;
        color: #606a7a;
    }
    .help_section .contact-btn-cancel:hover {
        background: #e8ecf1;
        color: #287EFE;
    }
    .help_section .contact-btn-primary {
        background: #287EFE;
        color: #FFFFFF;
        box-shadow: 0 2px 6px rgba(40, 126, 254, 0.3);
    }
    .help_section .contact-btn-primary:hover {
        background: #1a6de0;
        box-shadow: 0 4px 12px rgba(40, 126, 254, 0.35);
    }
    .help_section .contact-error-tip {
        font-size: 12px;
        color: #e54545;
        margin-top: 4px;
        display: none;
    }
    .help_section .contact-form-item.has-error .contact-error-tip { display: block; }
    .help_section .contact-form-item.has-error .contact-form-input { border-color: #e54545; }
    .help_section .contact-form-item.has-error .contact-form-input:focus {
        box-shadow: 0 0 0 3px rgba(229, 69, 69, 0.12);
    }
    .help_section .contact-modal-overlay {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.45);
        z-index: 29999;
        align-items: center;
        justify-content: center;
    }
    .help_section .contact-modal-overlay.active { display: flex; }
    .help_section .contact-modal-box {
        background: #fff;
        border-radius: 6px;
        width: 480px;
        max-width: 92%;
        box-shadow: 0 12px 48px rgba(0,0,0,0.2);
        overflow: hidden;
        animation: contactModalFadeIn 0.3s ease;
    }
    @keyframes contactModalFadeIn {
        from { opacity: 0; transform: translateY(-24px) scale(0.95); }
        to { opacity: 1; transform: translateY(0) scale(1); }
    }
    .help_section .contact-modal-accent {
        height: 4px;
        background: linear-gradient(90deg, #287EFE, #5BA0FF, #287EFE);
        background-size: 200% 100%;
        animation: contactAccentSlide 2s ease infinite;
    }
    @keyframes contactAccentSlide {
        0% { background-position: 0% 0; }
        50% { background-position: 100% 0; }
        100% { background-position: 0% 0; }
    }
    .help_section .contact-modal-icon-wrap {
        text-align: center;
        padding: 32px 24px 0;
    }
    .help_section .contact-modal-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: linear-gradient(135deg, #E8F0FE, #D4E4FF);
        animation: contactIconPop 0.4s ease 0.1s both;
    }
    @keyframes contactIconPop {
        0% { transform: scale(0); }
        60% { transform: scale(1.15); }
        100% { transform: scale(1); }
    }
    .help_section .contact-modal-icon svg { width: 32px; height: 32px; }
    .help_section .contact-modal-header {
        text-align: center;
        padding: 16px 24px 0;
    }
    .help_section .contact-modal-header h3 {
        font: 18px/1.3 "SourceHanSansCN", "Source Han Sans SC", "Microsoft YaHei", Arial, sans-serif;
        font-weight: 700;
        color: #071D42;
        letter-spacing: 0.5px;
    }
    .help_section .contact-modal-header .subtitle {
        font: 13px/1.5 "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        color: #9099a8;
        margin-top: 6px;
    }
    .help_section .contact-modal-divider {
        height: 1px;
        background: #f0f2f5;
        margin: 20px 24px 0;
    }
    .help_section .contact-modal-body {
        padding: 20px 24px 24px;
        font: 14px/1.8 "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        color: rgba(0,0,0,0.75);
    }
    .help_section .contact-modal-body .contact-highlight {
        color: #287EFE;
        font-weight: 600;
    }
    .help_section .contact-modal-body .contact-note-tag {
        display: inline-block;
        background: #FFF3E0;
        color: #E65100;
        font-size: 12px;
        font-weight: 600;
        padding: 1px 8px;
        border-radius: 3px;
        margin-right: 4px;
    }
    .help_section .contact-modal-footer {
        text-align: center;
        padding: 0 24px 28px;
    }
    .help_section .contact-modal-footer .contact-btn-primary {
        display: inline-block;
        height: 36px;
        line-height: 36px;
        padding: 0 22px;
        border-radius: 4px;
        font: 14px/36px "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
        cursor: pointer;
        text-decoration: none;
        transition: all 0.2s;
        border: none;
    }