@media screen and (max-width:768px) {

  :root {
    --head: 60px;
    --sec-radius: 24px;
    --sec-pad-lr: 12px;
    --card-gap: 20px;
  }

  .f_16 { font-size: 12px; }
  .f_18 { font-size: 13px; }
  .f_20 { font-size: 14px; }
  .f_24 { font-size: 16px; }
  .f_28 { font-size: 18px; }
  .f_32 { font-size: 20px; }
  .f_38 { font-size: 22px; }
  .f_42 { font-size: 24px; }
  .f_48 { font-size: 26px; }
  .f_52 { font-size: 28px; }

  .head1 {
    padding: 0 16px;
    height: 60px;
  }
  .head1 .logo {
    width: 120px;
  }
  .sec5-form .ipt-row .ipt-wrap {
    flex: none;
  }
  .head1 .right {
    gap: 12px;
  }
  .head1 .lang {
    display: none;
  }
  .btn-inquiry {
    padding: 8px 14px;
    font-size: 12px;
  }
  .btn-inquiry .arrow {
    width: 22px;
    height: 8px;
  }
  .btn-submit .arrow {
    width: 22px;
    height: 8px;
  }
  .head1 .menu {
    position: fixed;
    left: 0;
    top: -120vh;
    width: 100%;
    height: calc(100vh - var(--head));
    background: #fff;
    display: block;
    opacity: 0;
    overflow: auto;
    transition: all ease .3s;
    z-index: 50;
    color: #333;
  }
  header.open .menu {
    top: var(--head);
    opacity: 1;
  }
  .head1 .link {
    width: 100%;
    margin-left: 0;
  }
  .head1 .link>a {
    display: block;
    border-bottom: 1px solid #ddd;
    line-height: 50px;
    color: #333;
  }
  .head1 .link a {
    padding: 0 20px;
  }
  .head1 .link::after {
    display: none;
  }
  .head1 .down {
    min-width: 80px;
    overflow: hidden;
    padding: 0;
  }
  .head1 .link .down {
    left: 50%;
    top: 100%;
    margin-top: 0;
    transform: translate(0, 0);
    min-width: 160px;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    position: static;
    opacity: 1;
    width: 100%;
    pointer-events: visible;
    border-bottom: 1px solid #ddd;
    display: none;
  }
  .head1 .link .down::before {
    width: 100%;
    height: 40px;
    bottom: 100%;
  }
  .head1 .link .down a {
    padding: 10px 30px;
    text-align: left;
    font-size: 14px;
    color: #666;
  }
  .head1 .link .down a:not(:last-child) {
    border-bottom: none;
  }
  .head1 .link .down-jt {
    width: 50px;
    height: 50px;
    position: absolute;
    right: 0;
    top: 0;
    background: url('/img/icon-jia.svg') no-repeat center/15px;
  }
  .head1 .link.on .down-jt {
    background: url('/img/icon-jian.svg') no-repeat center/15px;
  }

  .banner-inner {
    flex-direction: column;
    padding: 90px 16px 0;
  }
  .banner-left {
    max-width: 100%;
    margin-bottom: 24px;
    padding-top: 0;
    text-align: center;
    width: 100%;
  }
  .banner-left p {
    margin-bottom: 6px;
    text-align: center;
  }
  .banner-right {
    width: 100%;
  }
  .banner-right > p {
    margin-bottom: 20px;
    text-align: center;
  }
  .banner-card {
    max-width: 280px;
    margin: 16px auto 0;
    border-radius: 20px;
  }

  .sec {
    margin-bottom: 40px;
    padding: 0 5%;
  }
  .sec1 .star-item::before {
    width: 6px;
    height: 6px;
  }
  .btn-download .arrow {
    width: 16px;
    height: 6px;
  }
  .tier-card .t2 {
    max-width: none;
  }
  .search-box .ic {
    width: 16px;
    height: 16px;
  }
  .search-box {
    padding: 5px 10px;
        height: auto;
        gap: 10px;
        border-radius: 20px;
  }
  .sec-inner {
    padding: 30px 16px 40px;
  }
  .sec2 .sec-inner {
    padding: 30px 16px 40px;
  }
  .sec-body {
    gap: 12px;
  }
  .sec-body > .num {
    padding-top: 0;
  }
  .sec-main {
    max-width: calc(100% - 30px);
  }
  .sec-head {
    margin-bottom: 24px;
    flex-wrap: wrap;
  }
  .sec-head .head-title {
    flex-wrap: wrap;
    gap: 6px;
  }

  .dot-list {
    padding-left: 0;
  }
  .dot-list .dot-item {
    padding-left: 14px;
    margin-bottom: 10px;
  }
  .dot-list .dot-item::before {
    top: 8px;
    width: 5px;
    height: 5px;
  }

  .star-list .star-item {
    padding-left: 18px;
    line-height: 1.4;
    margin-bottom: 10px;
  }
  .sec1 .compare-title .icon {
    width: 20px;
    height: 20px;
  }
  .sec1 .compare-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    margin: 24px 0;
  }
  .sec1 .compare-col {
    width: 100%;
  }
  .sec1 .compare-hi {
    padding: 16px 12px 20px;
    border-radius: 16px;
  }
  .sec1 .compare-col .compare-img,
  .sec1 .compare-grid > .compare-col:nth-child(n+3) .compare-img {
    height: auto;
    aspect-ratio: 16/10;
  }
  .sec1 .compare-title {
    gap: 8px;
    margin-top: 10px;
    padding-left: 0;
  }
  .sec1 .compare-desc {
    padding-left: 0;
    margin-top: 6px;
    line-height: 1.6;
  }
  .sec1 .compare-hi .compare-title,
  .sec1 .compare-hi .compare-desc {
    padding-left: 0;
    padding-right: 0;
  }

  .sec1 .ref-title {
    margin-top: 24px;
    margin-bottom: 12px;
  }
  .sec1 .ref-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .sec1 .ref-col p {
    line-height: 1.6;
  }

  .sec2 .sec2-body {
    flex-direction: column;
    gap: 20px;
  }
  .sec2 .sec2-left,
  .sec2 .sec2-right {
    width: 100%;
  }
  .manual-card {
    width: 100%;
    aspect-ratio: 16/10;
  }
  .manual-card .manual-text .cn {
    margin-bottom: 4px;
  }
  .sec2 .sec2-desc {
    margin: 12px 0;
    max-width: 100%;
  }
  .btn-download {
    height: 40px;
    gap: 6px;
  }

  .sec3 .sec3-body {
    flex-direction: column;
    gap: 20px;
  }
  .sec3 .honor-list {
    width: 100%;
    max-height: 300px;
  }
  .sec3 .honor-item {
    gap: 10px;
    margin-bottom: 20px;
  }
  .sec3 .honor-item .icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
  }
  .sec3 .sec3-title {
    margin-bottom: 20px;
    line-height: 1.4;
  }
  .sec3 .sec3-right {
    width: 100%;
  }

  .sec4 .sub-title {
    margin-top: 20px;
    margin-bottom: 12px;
    line-height: 1.4;
  }
  .sec4 .tier-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .tier-card {
    padding: 20px 16px;
    border-radius: 16px;
  }
  .tier-card .icon {
    width: 28px;
    height: 28px;
    margin-bottom: 12px;
  }
  .tier-card .t1 {
    margin-bottom: 6px;
  }

  .sec4 .mode-tabs {
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    position: static;
  }
  .mode-tab {
    flex: 1 1 100%;
    padding: 10px;
    border-radius: 100px;
  }

  .mode-panel {
    padding: 16px 0 30px;
    margin-top: 12px;
  }
  .mode-desc .t1 {
    margin-bottom: 12px;
  }
  .mode-desc .t2 {
    margin-bottom: 12px;
  }
  .mode-desc .notes {
    max-width: 100%;
  }
  .mode-desc .notes .notes-item {
    padding-left: 14px;
    margin-bottom: 8px;
  }
  .mode-desc .notes .notes-item::before {
    top: 8px;
    width: 5px;
    height: 5px;
  }

  .mode-a {
    padding-bottom: 40px;
  }
  .mode-a .mode-head {
    flex-direction: column;
    gap: 20px;
  }
  .mode-a .mode-desc {
    width: 100%;
  }
  .search-box {
    margin-left: 0;
    width: 100%;
    margin-bottom: 16px;
  }

  .mode-table {
    overflow-x: auto;
  }
  .mode-table .thead {
    padding: 10px 8px;
  }
  .mode-table .tr {
    padding: 12px 8px;
  }
  .mode-table .th1,
  .mode-table .td1 {
    width: 60px;
    margin-right: 12px;
  }
  .mode-table .th2,
  .mode-table .td2 {
    width: auto;
    flex: 1;
    margin-right: 12px;
  }
  .mode-table .td2 {
    height: auto;
    line-height: 1.5;
    transition: none;
  }
  .mode-table .th3,
  .mode-table .td3 {
    width: 115px;
    flex: none;
  }
  .mode-table .td3 .play {
    width: 30px;
    height: 30px;
  }

  .mode-b .sub-content {
    flex-direction: column;
    gap: 20px;
  }
  .mode-b .notes {
    width: 100%;
    max-width: 100%;
  }
  .mode-b .sub-table {
    width: 100%;
  }
  .mode-b .sub-t {
    margin-bottom: 12px;
  }
  .mode-b .tb-head {
    padding: 10px 0;
  }
  .mode-b .tb-head .col,
  .mode-b .tb-row .col {
    width: 25%;
    padding: 0 4px;
    text-align: center;
    line-height: 1.3;
    word-break: break-word;
  }
  .mode-b .tb-row {
    padding: 12px 0;
  }

  .mode-c .mode-c-tip {
    margin-top: 12px;
    line-height: 1.5;
  }

  .sec5 .sec5-body {
    flex-direction: column;
    gap: 24px;
  }
  .sec5-left {
    width: 100%;
  }
  .sec5-left .tel,
  .sec5-left .email {
    line-height: 1.4;
    margin-bottom: 8px;
    word-break: break-all;
  }
  .sec5-form {
    width: 100%;
  }
  .sec5-form .ipt-row {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-bottom: 14px;
  }
  .sec5-form .ipt-row.ipt-row-area {
    align-items: stretch;
  }
  .sec5-form .ipt-label {
    width: 100%;
  }
  .sec5-form .ipt-wrap {
    height: 40px;
    padding: 0 14px;
    border-radius: 6px;
    margin-bottom: 0;
  }
  .sec5-form .ipt-wrap.ipt-area {
    height: auto;
    min-height: 100px;
    padding: 12px 14px;
  }
  .sec5-form .ipt-area textarea {
    min-height: 76px;
    line-height: 1.5;
  }
  .sec5-form .ipt-row-agree {
    margin-top: 4px;
    margin-bottom: 10px;
  }
  .sec5-form .ipt-row-agree .ipt-label-empty {
    display: none;
  }
  .sec5-form .ipt-agree {
    gap: 8px;
  }
  .sec5-form .ipt-agree .agree-box {
    width: 16px;
    height: 16px;
    margin-top: 2px;
    border-radius: 3px;
  }
  .sec5-form .ipt-agree input:checked + .agree-box::after {
    width: 8px;
    height: 5px;
  }
  .btn-submit {
    width: 100%;
    max-width: 260px;
    height: 44px;
    border-radius: 50px;
    gap: 8px;
    margin: 14px auto 0;
    box-shadow: inset 0 0 8px rgba(255, 255, 255, 0.15);
  }
  .btn-submit .arrow {
    width: 18px;
    height: 8px;
  }

  footer {
    padding: 24px 16px;
  }
  .foot1 {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .protein-modal .pm-dialog {
    width: calc(100% - 24px);
    max-width: calc(100% - 24px);
    max-height: calc(100vh - 40px);
    padding: 20px 16px 24px;
    border-radius: 16px;
  }
  .protein-modal .pm-close {
    width: 28px;
    height: 28px;
    right: 0px;
    top: 0px;
  }
  .protein-modal .pm-video {
    margin-bottom: 16px;
    border-radius: 12px;
  }
  .protein-modal .pm-play {
    width: 56px;
    height: 56px;
  }
  .protein-modal .pm-desc {
    line-height: 1.6;
  }
  .protein-modal .pm-nav {
    margin-top: 16px;
  }
  .sec5 .sec-inner {
    padding: 42px 5%;
  }
  .tier-card:hover {
    box-shadow: none;
  }
  .sec2 .sec2-left .sec-head {
    margin-bottom: 25px;
  }
  .sec2 .sec2-list {
    padding-left: 0;
  }

  .C-Alert .alertPop {
    width: calc(100% - 40px) !important;
    max-width: 340px;
    padding: 40px 20px 30px !important;
    border-radius: 18px !important;
  }
  .C-Alert .alertPop .close {
    top: 12px !important;
    right: 12px !important;
    width: 24px !important;
    height: 24px !important;
  }
  .C-Alert .alertPop .close::before,
  .C-Alert .alertPop .close::after {
    width: 18px;
    height: 2px;
  }
  .C-Alert .alertPop .tips {
    font-size: 18px !important;
    margin-bottom: 24px !important;
  }
  .C-Alert .alertPop .btn {
    min-width: 160px;
    padding: 0 24px;
    line-height: 42px !important;
    font-size: 14px !important;
    gap: 6px;
  }
  .C-Alert .alertPop .btn::before {
    width: 22px;
    height: 8px;
  }
}