.swiper {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    height: 800px !important;
}
.sinpic {
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    text-align: center;
}
.sinpic img {
    width: 100%;
    height: 100%;
}

.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.banner_Box {
    padding-top: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: start;
    text-align: center;
    color: #fff; 
    z-index: 10;
    height: 65%;
}

.banner_Box2 {
    width: 100%;
    position: absolute;
    top: -120px;
    align-items: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    z-index: 10;
}
.banner_Box3 {
    position: absolute;
    top: 0;
    right: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    color: #fff;
    z-index: 10;
}

.banner_txt1 {
    font-weight: bold;
    font-size: var(--fontsize4);
    display: flex;
    align-items: center;
}
.banner_txt2 {
    font-size: var(--fontsize5);
    margin-top: 30px;
}
.banner_txt3 {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: var(--fontsize8);
    max-width: 750px;
    font-weight: bold;
}
h1.banner_txt3 {
    display: block;
    margin: 0;
}
h2.kuai_txt1 {
    margin: 0.67em 0;
}
.banner_txt4 {
    font-weight: bold;
    font-size: 60px;
    display: flex;
    align-items: center;
}
.banner_txt5 {
    font-size: 40px;
    display: flex;
    align-items: center;
    margin-top: 30px;
    margin-bottom: 30px;
}
.banner_txt6 {
    font-size: 20px;
    display: flex;
    align-items: center;
}

.zhihuijiaoyu_txt4 {
    font-weight: bold;
    font-size: var(--fontsize2);
    text-align: left;
    margin-top: 30px;
    line-height: 51px;
    width: 75%;
}
.zhihuijiaoyu_txt3 {
    margin-top: 45px;
    font-size: var(--fontsize2);
    text-align: center;
    background: #00d1b2;
    color: #fff;
    border-radius: 22px;
    width: max-content;
    width: 178px;
    height: 44px;
    line-height: 44px;
    font-weight: bold;
}

.sanjiao {
    border: 25px solid transparent;
    border-right-color: #00d1b2;
}
.sanjiao_con {
    width: 160px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: #00d1b2;
    font-size: var(--fontsize6);
}
.con_gg1 {
    padding-top: 80px;
}
.con_gg2 {
    padding: 120px 0;
}
.iconbox {
    width: 48px;
    height: 48px;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}
.iconbg1 {
    background: #edecfc;
}
.iconbg2 {
    background: #e7f8f2;
}
.iconbg3 {
    background: #e1f4fa;
}
.duihaobox {
    width: 16px;
    height: 16px;
    background: var(--color1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.con1 {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 80px;
    row-gap: 30px;
}
.con2_1 {
    width: calc(100% / 3 - 24px);
    box-shadow: 0px 1px 7px 0px rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    padding: 30px 40px;
    box-sizing: border-box;
}
.con2_2 {
    width: 24%;
    box-shadow: 0px 1px 7px 0px rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    padding: 30px 40px;
    box-sizing: border-box;
}
.contags {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 35px;
}
.contags span {
    padding: 4px 10px;
    background: #e8f8f5;
    border-radius: 10px;
    font-size: 16px;
    line-height: 26px;
}
.con4_1 {
    width: 375px;
    padding: 30px 0 30px 40px;
    box-sizing: border-box;
    display: flex;
    gap: 70px;
}
.con1_1 {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 600px;
    height: 60px;
    background: #ffffff;
    border-radius: 30px;
    padding: 0 30px;
    cursor: pointer;
}
.con2_btn1 {
    margin: 30px auto 0;
    width: 180px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    background: #ffffff;
    border-radius: 22px;
    border: 1px solid #00d1b2;
    color: #00d1b2;
    cursor: pointer;
}

/* 左边轮播按钮 */
.swiper-button-prev {
    width: 50px !important;
    height: 50px !important;
    left: 30px !important;
    border-radius: 50%;
    /* background-color: rgba(0, 0, 0, 0.37); */
}
.swiper-button-prev::after {
    font-size: 47px !important;
    color: #fff;
    font-weight: bold;
}
/* 右边轮播按钮 */
.swiper-button-next {
    width: 50px !important;
    height: 50px !important;
    right: 30px !important;
    border-radius: 50%;
    /* background-color: rgba(0, 0, 0, 0.37); */
}
.swiper-button-next::after {
    font-size: 47px !important;
    color: #fff;
    font-weight: bold;
}
/* 轮播下方图例 */
.swiper-pagination {
    bottom: 30px !important;
}
.swiper-pagination-bullet {
    background: rgba(255, 255, 255, 0.6) !important;
    width: 16px !important;
    height: 16px !important;
    border-radius: 50% !important;
}
.swiper-pagination-bullet-active {
    background: #00d1b2 !important;
}

/* --- 布局容器 --- */
.productitem1,
.productitem2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 50px;
}

/* --- 文字在右 --- */
.productitem1-left {
    flex: 0 0 52%;
}
.productitem1-left .main-img {
    width: 100%;
    display: block;
   
    border-radius: 8px;
}
.productitem1-right {
    flex: 0 0 48%;
    padding-left: 0;
}
.productitem1-left .ai-window {
    width: 100%;
    position: relative;
    justify-content: flex-start;
}
.productitem1-left .ai-bg {
    width: 100%;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0);
    border-radius: 8px;
}

.convert-container {
    width: 100%;
    height: 400px; /*做出背景框*/
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    background: #ffffff;
    border-radius: 12px;
}
.convert-container img {
    max-width: 100%;
    height: auto;
    display: block;
    flex-shrink: 1; /* 允许在空间不足时缩小 */
}

/* --- 文字在左 --- */
.productitem2-left {
    flex: 0 0 48%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.productitem2-right {
    flex: 0 0 52%;
}
.productitem2-right .ai-window {
    width: 100%;
    position: relative;
}
.productitem2-right .ai-bg {
    width: 100%;
    display: block;
    border-radius: 8px;
}

.subtitle {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}
.feature-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 15px 30px;
    margin-bottom: 40px;
    margin-left: 0px;
    padding: 0;
}
.feature-list li {
    font-size: 15px;
    color: #00d1b2;
    display: flex;
    align-items: center;
}
.feature-list li img {
    width: 18px;
    margin-right: 8px;
}
.title-line {
    display: flex;
    align-items: baseline;
    gap: 5px;
}
.btn-change {
    display: inline-block;
    padding: 12px 50px;
    border: 2px solid #00d1b2;
    color: #00d1b2;
    border-radius: 30px;
    text-decoration: none !important;
    font-size: 16px;
    transition: all 0.3s;
    background: #fff;
}
.btn-change:hover {
    background: #00d1b2;
    color: #fff;
}

/*------------------架构图1 --------------------*/
.teaching-process {
    position: relative;

    width: 100%;
    max-width: 1455px;
    aspect-ratio: 1455 / 535;
    margin: 0 auto;
    overflow: hidden;
}
/* 背景图 */
.teaching-process-bg {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    z-index: 1;
}
.process-content {
    position: absolute;
    z-index: 2;
    box-sizing: border-box;
}  
.process-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 6px;
}
.process-desc {
    font-size: 14px;  
    color: #666;
    line-height: 1.8;
    margin-bottom: 12px;
}
.process-desc strong {
    color: #333;
    font-weight: 600;
}
.ai-value {
    color: #51cdbb;
}
.teaching {
    color: #d8753a;
}
.group1 {
    position: absolute;
    left: 17.2%;
    top: 12%;
    z-index: 2;
    font-size: 24px;
    line-height: 1.15;
    text-align: center;
    color: #222;
}
.group1-text {
    left: 22%;
    top: 4.5%;
    width: 24%;
    text-align: left;
}
.group2 {
    position: absolute;
    left: 40.5%;
    top: 64%;
    z-index: 2;
    font-size: 24px;
    line-height: 1.15;
    text-align: center;
    color: #222;
}
.group2-text {
    left: 16.5%;
    top: 57%;
    width: 24%;
    text-align: left;
}
.group3 {
    position: absolute;
    left: 55.8%;
    top: 14%;
    z-index: 2;
    font-size: 24px;
    line-height: 1.15;
    text-align: center;
    color: #222;
}
.group3-text {
    left: 60.8%;
    top: 4.5%;
    width: 25%;
    text-align: left;
}
.group4 {
    position: absolute;
    left: 80%;
    top: 63%;
    z-index: 2;
    font-size: 24px;
    line-height: 1.15;
    text-align: center;
    color: #222;
}
.group4-text {
    left: 54.5%;
    top: 57%;
    width: 25%;
    text-align: left;
}


/*------------------架构图1 --------------------*/
/* =========================================================
   课程中心整体
   背景图尺寸：1464 × 580
   ========================================================= */

.course-diagram {
    position: relative;
    width: 100%;
    max-width: 1464px;
    aspect-ratio: 1464 / 580;
    margin: 0 auto;

    background-image: url("./images/框架2@2x.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 100% 100%;

    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: #333;
    overflow: hidden;
}

.top-title {
    position: absolute;
    left: 33.33%;
    top: 0%;
    width: 33.47%;
    height: 6.7%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    color: #fff;
    font-size: clamp(9px, 1.09vw, 16px);
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
}

.top-title .divider,
.bottom-title .divider {
    width: 1px;
    height: 16px;

    background: rgba(255, 255, 255, 0.85);

    flex-shrink: 0;
}
.course-column {
    position: absolute;
    top: 22%;
    width: 14.75%;
    height: 49.3%;
}
.column-1 {
    left: 3.5%;
}
.column-2 {
    left: 29.5%;
}

.column-3 {
    left: 55%;
}

.column-4 {
    left: 82%;
}
.column-title {
    position: absolute;
    left: 0;
    top: 2.8%;

    width: 100%;

    text-align: center;

    color: #fff;

    font-size: clamp(10px, 1.09vw, 16px);
    font-weight: 600;

    line-height: 1;

    white-space: nowrap;
}
.main-item {
    position: absolute;

    left: 0%;

    display: flex;
    align-items: center;

    font-size: clamp(8px, 0.96vw, 14px);

    line-height: 1.4;

    white-space: nowrap;

    color: #333;
}

.main-item img {
    width: clamp(9px, 0.96vw, 14px);
    height: clamp(9px, 0.96vw, 14px);

    margin-right: 6px;

    object-fit: contain;

    flex-shrink: 0;

    display: block;
}
.sub-items {
    position: absolute;

    left: 10%;

    font-size: clamp(7px, 0.89vw, 13px);

    line-height: 2.45;

    color: #777;

    white-space: nowrap;
}
.column-1 .main-item {
    top: 17%;
}
.column-1 .sub-items {
    top: 27%;
}
.column-2 .main-item {
    top: 17%;
}

.column-2 .first-sub {
    top: 27%;
}


.column-2 .training-item {
    top: 43%;
}

.column-2 .personal-item {
    top: 54%;
}

.column-2 .learning-sub {
    top: 64%;
}
.column-3 .main-item {
    top: 17%;
}

.column-3 .sub-items {
    top: 27%;
}

.column-3 .exam-item {
    top: 53%;
}

.column-3 .exam-sub {
    top: 60%;
}
.column-4 .main-item {
    top: 17%;
}
.column-4 .sub-items {
    top: 27%;
}
.bottom-title {
    position: absolute;

    left: 35.1%;
    top: 93%;

    width: 28.7%;
    height: 6.7%;

    display: flex;
    align-items: center;
    justify-content: center;

    gap: 18px;

    color: #fff;

    font-size: clamp(9px, 1.09vw, 16px);
    font-weight: 600;

    line-height: 1;

    white-space: nowrap;
}
.column-1 .main-item img {
    content: url("./images/创作者中心@2x.png");
}

.column-2 .main-item img {
    content: url("images/在线课堂@2x.png");
}

.column-2 .training-item img {
    content: url("images/培训管理@2x.png");
}

.column-2 .personal-item img {
    content: url("./images/个性化学习移上去@2x.png");
}

.column-3 .main-item img {
    content: url("images/出题@2x.png");
}

.column-3 .exam-item img {
    content: url("images/考试_线性@2x.png");
}

.column-4 .main-item img {
    content: url("images/课程管理@2x.png");
}










/*--下方卡片 --*/
.uncard {
    width: calc(100% - 15px);
    min-height: 74px;

    border: 1px solid #e5e5e5;
    border-radius: 8px;
    background: #ffffff;

    display: flex;
    align-items: center;

    box-sizing: border-box;

    margin-top: 5px;
    padding: 10px 18px;
}
.uncard_icon {
    width: 40px;
    height: 40px;

    flex-shrink: 0;

    border-radius: 50%;

    background: #cfeee8;

    display: flex;
    align-items: center;
    justify-content: center;

    margin-right: 14px;
}
.uncard_icon img {
    width: 22px;
    height: 22px;

    object-fit: contain;

    display: block;
}
.uncard_content {
    display: flex;
    flex-direction: column;

    justify-content: center;

    min-width: 0;
}
.uncard_title {
    font-size: 16px;
    font-weight: 500;

    color: #45cbb8;

    line-height: 1.4;

    margin-bottom: 4px;
}
.uncard_text {
    font-size: 12px;

    color: #666666;

    line-height: 1.5;
}

/* ----四张卡片---- */
/* 整个板块 */
.scene-section {
    width: 100%;

    display: grid;
    grid-template-columns: repeat(3, 1fr);

    gap: 20px;

    box-sizing: border-box;
    margin-bottom: 100px;
}
/* 单张卡片 */
.scene-card {
    position: relative;

    width: 100%;
    height: 450px;

    overflow: hidden;

    border-radius: 8px;

    background: #f5f5f5;

    box-sizing: border-box;
}
/* 背景图片 */
.scene-card > img {
    width: 100%;
    height: 100%;

    display: block;

    object-fit: cover;
}
/* 底部黑色渐变 */
.scene-card::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 65%;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.75),
        rgba(0, 0, 0, 0)
    );

    pointer-events: none;
}

/* 文字区域 */
.scene-overlay {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 0 16px 16px 16px;
    box-sizing: border-box;
    color: #ffffff;
}
/* 标题 */
.scene-title {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 18px;
}
/* 描述 */
.scene-description {
    font-size: 12px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 22px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;

    overflow: hidden;
}
/* 标签容器 */
.scene-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
/* 标签 */
.scene-tags span {
    display: inline-flex;
    align-items: center;
    height: 22px;
    padding: 0 9px;
    box-sizing: border-box;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.22);
    color: #ffffff;
    font-size: 11px;
    line-height: 22px;
    backdrop-filter: blur(4px);
}




/* --- AIppt打字动画 --- */
.typing-text {
    position: absolute;
    top: 18%;
    left: 10%;
    font-size: 23px;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    border-right: 2px solid #00d1b2;
    animation: typing1 3s steps(30) infinite;
}
@keyframes typing1 {
    from {
        width: 0;
    }
    to {
        width: 15ch;
    }
}
@keyframes blink {
    from,
    to {
        border-color: transparent;
    }
    50% {
        border-color: #00d1b2;
    }
}

/* --- AI思维导图打字动画 --- */
/* 两张图的切换逻辑 */
.img-step1 {
    position: relative;
    z-index: 1;
    animation: fadeOut 7s infinite;
}
.img-step2 {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 0;
    opacity: 0;
    animation: fadeIn 7s infinite;
}

/* 上海迪士尼打字动画 */
.typing-box2 {
    position: absolute;
    top: 50.7%; /* 根据输入框位置微调 */
    left: 25%;
    z-index: 2;
    font-size: 23px;
    color: #333;
    display: flex;
    align-items: center;
    animation: fadeOut 7s infinite;
}
.typing-text2 {
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    width: 0;
    animation: typing2 7s steps(20) infinite;
}

/* 2. 鼠标移动动画 */
.fake-mouse {
    position: absolute;
    width: 30px;
    z-index: 10;
    bottom: -10px; /* 初始在画面外 */
    right: 10%;
    opacity: 0;
    animation: mouse-move 7s ease-in-out infinite;
}
.click-effect-img {
    position: absolute;
    z-index: 9;
    bottom: 45.5%;
    right: 29%;
    transform: translate(50%, 50%) scale(1);
    animation: fadeOut 7s infinite;
    background-color: #00d1b2;
    padding: 6px;
    border-radius: 8px;
}

/* --- AI思维导图动画序列定义 --- */

/* 文字打出 */
@keyframes typing2 {
    0% {
        width: 0;
    }
    30%,
    80% {
        width: 16ch;
    } /* 3s时打完并保持 */
    90%,
    100% {
        width: 0;
    }
}
@keyframes mouse-move {
    0%,
    30% {
        bottom: -50px;
        right: 10%;
        opacity: 0;
        transform: scale(1);
    }
    35% {
        opacity: 0;
    }
    50% {
        bottom: 37%;
        right: 25%;
        transform: scale(1);
    } /* 移动到发送键位置 */
    53% {
        transform: scale(0.8);
    } /* 点击缩放效果 */
    55% {
        transform: scale(1);
        opacity: 1;
    }
    60%,
    100% {
        opacity: 0;
    } /* 点击完消失 */
}
@keyframes fadeOut {
    0%,
    54% {
        opacity: 1;
    }
    55%,
    100% {
        opacity: 0;
    }
}
@keyframes fadeIn {
    0%,
    54% {
        opacity: 0;
    }
    56%,
    100% {
        opacity: 1;
    }
}
.cursor {
    animation: blink 0.7s infinite;
    color: #00d1b2;
}
@keyframes blink {
    50% {
        opacity: 0;
    }
}

/*国际交流打字动画*/
.typing-text3 {
    position: absolute;
    top: 83%;
    left: 17%;
    font-size: 23px;
    font-weight: bold;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    animation: typing3 3s steps(15) infinite;
}
.typing-text4 {
    position: absolute;
    top: 83%;
    left: 60%;
    font-size: 23px;
    font-weight: bold;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    animation: typing4 3s steps(20) infinite;
}
@keyframes typing3 {
    0% {
        width: 0;
    }
    60% {
        width: 7.5ch;
    }
    100% {
        width: 7.5ch;
    }
}
@keyframes typing4 {
    0% {
        width: 0;
    }
    60% {
        width: 18.5ch;
    }
    100% {
        width: 18.5ch;
    }
}

/*协同编辑动画*/
.cursor-user {
    position: absolute;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 4px;
    pointer-events: none; 
}
.cursor-user img {
    width: 100%; 
    transform: rotate(-10deg);
}
/* --- 动画分配 --- */
.user-ben {
    animation: move-ben 5s infinite ease-in-out;
}
.user-mia {
    animation: move-mia 5s infinite ease-in-out;
}
.user-zoe {
    animation: move-zoe 5s infinite ease-in-out;
}
.user-tom {
    animation: move-tom 5s infinite ease-in-out;
}
/* --- 轨迹定义 --- */
@keyframes move-ben {
    40%,
    100% {
        top: 22%;
        left: 15%;
    }
    0% {
        top: 12%;
        left: 35%;
    }
}

@keyframes move-mia {
    40%,
    100% {
        top: 40%;
        left: 75%;
    }
    0% {
        top: 25%;
        left: 45%;
    }
}

@keyframes move-zoe {
    40%,
    100% {
        top: 60%;
        left: 70%;
    }
    0% {
        top: 65%;
        left: 40%;
    }
}

@keyframes move-tom {
    40%,
    100% {
        top: 62%;
        left: 8%;
    }
    0% {
        top: 78%;
        left: 35%;
    }
}

/*箭头渐变动画*/
.arrow-steps {
    display: flex;
    align-items: center;
    gap: 5px;
}
.step {
    opacity: 0;
    animation: step-fade 3s infinite;
}
/* 分步延迟*/
.step-1 {
    animation-delay: 0s;
}
.step-2 {
    animation-delay: 0.3s;
}
.step-3 {
    animation-delay: 0.6s;
}
.step-4 {
    animation-delay: 0.9s;
}
.step-5 {
    animation-delay: 1.2s;
}
@keyframes step-fade {
    0% {
        opacity: 0;
        transform: translateX(-5px);
    }
    30%,
    80% {
        opacity: 1;
        transform: translateX(0);
    }
    100% {
        opacity: 0;
    }
}

/*弹幕库滚动*/
.feedback-section {
    max-width: 1920px;
    width: 100%;
    margin: auto;
    display: flex;
    align-items: center;
    background: #f4f9ff;
    overflow: hidden;
    padding: 60px 20px;
}
.feedback-left img {
    width: 100%;
    max-width: 500px;
    height: auto;
    margin: 20px auto 0 auto;
}
.feedback-left {
    flex: 0 0 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-right: 20px;
}
.feedback-left img {
    width: 100%;
}
.danmaku-area {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column; /* 确保 track-1 和 track-2 垂直排开 */
    gap: 10px;
    justify-content: space-around;
    gap: 40px;
    padding: 20px 0;
    /* 根据卡片高度设置一个最小高度*/
    min-height: 400px;
}

.danmaku-track {
    display: flex;
    flex-shrink: 0;
    height: 180px;
    align-items: center;
    position: relative;
}

.danmaku-group {
    display: flex;
    /* 引用无限滚动动画 */
    animation: scroll-left 25s linear infinite;
}
.track-2 .danmaku-group {
    animation: scroll-left 35s linear infinite; /* 第二行 */
}

/* 评价卡片样式 */
.con5_1 {
    position: relative;
    align-items: flex-end;
    display: flex;
    width: 480px; /* 根据图中比例，卡片较宽 */
    margin-left: 200px;
    flex-shrink: 0;
    gap: 20px;
}
.avatar-wrap {
    width: 60px;
    height: 60px;
    z-index: 2;
}
.avatar-wrap img {
    bottom: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #fff;
}
.comment-card {
    flex: 1;
    background: #ffffff;
    border-radius: 15px;
    padding: 25px 30px 25px 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    text-align: left;
}
.user-meta {
    margin-bottom: 12px;
}
.u-name {
    display: block;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}
.u-job {
    display: block;
    font-size: 14px;
    color: #999;
    margin-top: 4px;
}
.u-feedback {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
}
/* 动画：向左移动一个整组的距离 */
@keyframes scroll-left {
    from {
        transform: translateX(30%);
    }
    to {
        transform: translateX(-100%);
    }
}
@keyframes scroll-left-mobile {
    from {
        transform: translateX(60%);
    }
    to {
        transform: translateX(-70%);
    }
}

@media (max-width: 768px) {
    .feedback-section {
        flex-direction: column;
        padding: 40px 15px;
        align-items: center;
    }
    .feedback-left {
        flex: 0 0 100%;
        width: 100%;
        text-align: center;
        align-items: center;
        margin-bottom: 40px;
    }
    .feedback-title {
        font-size: 20px;
    }
    .con5_1 {
        width: 300px;
        margin: 0 20px;
    }
    .avatar-wrap {
        width: 50px;
        height: 50px;
        left: -10px;
        bottom: 5px;
    }
    .comment-card {
        padding: 15px 15px 20px 30px;
    }
    .u-name {
        font-size: 15px;
    }
    .u-job {
        font-size: 12px;
    }
    .u-feedback {
        font-size: 13px;
        line-height: 1.4;
    }
    .danmaku-area {
        gap: 30px;
    }
    .danmaku-group {
        animation: scroll-left-mobile 20s linear infinite !important;
    }
    .track-2 .danmaku-group {
        animation: scroll-left-mobile 30s linear infinite !important;
    }
}
@media (max-width: 768px) {
    .feedback-section {
        flex-direction: column;
    }
    .feedback-left {
        width: 60%;
        margin-bottom: 30px;
    }

    .con5_1 {
        width: 260px;
        padding: 15px;
    }
    .user-name {
        font-size: 14px;
    }
    .feedback-text {
        font-size: 12px;
    }
}
@media (max-width: 768px) {
    .swiper {
        width: 100%;
        height: 100% !important;
    }
    /* 左边轮播按钮 */
    .swiper-button-prev {
        width: 40px !important;
        height: 40px !important;
        left: 10px !important;
        border-radius: 50%;
    }
    .swiper-button-prev::after {
        font-size: 15px !important;
    }
    /* 右边轮播按钮 */
    .swiper-button-next {
        width: 40px !important;
        height: 40px !important;
        right: 10px !important;
        border-radius: 50%;
    }
    .swiper-button-next::after {
        font-size: 15px !important;
    }
    /* 轮播下方图例 */
    .swiper-pagination {
        bottom: 10px !important;
    }

    .banner_Box {
        width: auto;
        max-width: none;
        margin: 0;
        padding: 0 20px;
        box-sizing: border-box;
    }

    .banner_Box2 {
        width: 80%;
        height: 35%;
        top: 20%;
        left: 50%;
        transform: translateX(-50%);
        justify-content: space-evenly;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .banner_Box3 {
        width: 80%;
        height: 35%;
        top: 20%;
        left: 50%;
        transform: translateX(-50%);
        justify-content: space-evenly;
    }

    .banner_txt4 {
        font-size: 24px !important;
    }

    .banner_txt5 {
        font-size: 16px !important;
        line-height: 1.4;
        margin-top: 10px;
    }

    .banner_txt6 {
        font-size: 12px !important;
        margin-top: 10px;
        white-space: nowrap;
    }
    .con2_1 {
        width: 100%;
    }
    .con2_2 {
        width: 100%;
    }
    .con4_1 {
        width: 100%;
    }
    .banner_txt2 {
        margin-top: 15px;
    }
    .zhihuijiaoyu_txt3 {
        margin-top: 15px;
        width: 100px;
        height: 25px;
        line-height: 25px;
    }
    .zhihuijiaoyu_txt4 {
        line-height: 25px;
        margin-top: 15px;
    }
    .sanjiao {
        border: 12px solid transparent;
        border-right-color: #00d1b2;
    }
    .sanjiao_con {
        width: 80px;
        height: 25px;
        line-height: 25px;
        text-align: center;
        background: #00d1b2;
        font-size: var(--fontsize6);
    }
}
@media (max-width: 768px) {
    .productitem1,
    .productitem2 {
        flex-direction: column;
        gap: 30px;
        margin-bottom: 60px;
    }
    .productitem1-left,
    .productitem1-right,
    .productitem2-left,
    .productitem2-right {
        flex: 0 0 100%;
        width: 90%;
        align-items: center;
        text-align: center;
    }
    /* 移动端强制把文字放到图片下面 */
    .productitem2 {
        flex-direction: column-reverse;
    }

    .feature-list {
        justify-content: center;
    }
    .typing-text {
        font-size: 14px;
        top: 13%;
        left: 8%;
    }
    .typing-text2 {
        font-size: 14px;
    }
    .typing-text3 {
        font-size: 14px;
    }
    .typing-text4 {
        font-size: 14px;
    }
    .source-file {
        flex: 0 0 10% !important;
        max-width: 50px;
    }
    .target-result {
        flex: 0 0 60% !important;
        max-width: 400px;
    }
}
@media (max-width: 768px) {
    .scene-section {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .scene-card {
        height: 230px;
    }
}

@media (max-width: 480px) {
    .scene-section {
        grid-template-columns: 1fr;
    }

    .scene-card {
        height: 260px;
    }
}


@media (max-width: 768px) {
    .teaching-process {
        width: 100%;
        max-width: 1455px;
        aspect-ratio: 1455 / 535;

        margin: 0 auto;
    }
    .process-title {
        font-size: 6px;
        line-height: 1.3;

        margin-bottom: 2px;
    }
    .process-desc {
        font-size: 6px;
        line-height: 1.45;

        margin-bottom: 5px;
    }
    .process-desc strong {
        font-size: 6px;
    }
    
    .group1 {
        left: 17%;
        top: 0%;
        font-size: 10px;
    }
    .group-text {
        left: 22%;
        top: 3%;

        width: 23%;
    }
    .group2 {
        left: 40%;
        top: 66%;

        font-size: 10px;
    }
    .group2-text {
        left: 16%;
        top: 59%;

        width: 24%;
    }
    .group3 {
        left: 56%;
        top: 0%;
        font-size: 10px;
    }
    .group3-text {
        left: 61%;
        top: 3%;

        width: 24%;
    }
    .group4 {
        left: 81%;
        top: 66%;

        font-size: 10px;
    }

    .group4-text {
        left: 55%;
        top: 59%;

        width: 25%;
    }
}


/* =========================================================
   架构图2
   ========================================================= */

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

    .top-title {
        gap: 8px;
        font-size: clamp(7px, 2.1vw, 11px);
    }

    .top-title .divider,
    .bottom-title .divider {
        height: 10px;
    }

    .column-title {
        font-size: clamp(7px, 2.1vw, 11px);
    }

    .main-item {
        font-size: clamp(6px, 1.85vw, 10px);
    }

    .main-item img {
        width: clamp(7px, 1.85vw, 10px);
        height: clamp(7px, 1.85vw, 10px);
        margin-right: 3px;
    }

    .sub-items {
        font-size: clamp(5px, 1.7vw, 9px);
        line-height: 2.45;
    }

    .bottom-title {
        gap: 8px;
        font-size: clamp(7px, 2.1vw, 11px);
    }
}


/* =========================================================
   架构图2
   ========================================================= */

@media screen and (max-width: 480px) {

    .top-title {
        gap: 5px;
        font-size: 7px;
    }

    .top-title .divider,
    .bottom-title .divider {
        height: 8px;
    }

    .column-title {
        font-size: 7px;
    }

    .main-item {
        font-size: 6px;
    }

    .main-item img {
        width: 7px;
        height: 7px;
        margin-right: 2px;
    }

    .sub-items {
        font-size: 5.5px;
        line-height: 2.45;
    }

    .bottom-title {
        gap: 5px;
        font-size: 7px;
    }
}