@font-face {
    font-family: 'JiYingHuiPianYuan';
    src: url('../极影毁片圆.ttf');
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    overflow-x: hidden;
}

/* 动画定义 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatUpDown {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.section {
    width: 100%;
    height: 56.25vw;
    max-height: 1080px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.section:first-of-type {
    margin-top: 5.2vw;
}

.section-7 {
    height: 27.08vw;
    max-height: 520px;
}

/* 板块1样式 */
.section-1-content {
    width: 100%;
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

.section-1-text {
    position: absolute;
    left: 174px;
    top: 245px;
    width: 588px;
    height: 191px;
    z-index: 2;
}

.title-line-1 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 75px;
    color: #000000;
    line-height: 1;
    margin: 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

.title-line-1.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.title-line-2 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 100px;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.4s, transform 0.8s ease-out 0.4s;
}

.title-line-2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.text-black {
    color: #000000;
}

.text-blue {
    color: #0078D7;
}

.section-1-subtitle {
    position: absolute;
    left: 176px;
    top: 469px;
    width: 1000px;
    height: 60px;
    line-height: 60px;
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 38px;
    color: #000000;
    white-space: nowrap;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.6s, transform 0.8s ease-out 0.6s;
}

.section-1-subtitle.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-1-desc {
    position: absolute;
    left: 175px;
    top: 550px;
    width: 636px;
    height: 84px;
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 25px;
    color: #000000;
    line-height: 1.5;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.8s, transform 0.8s ease-out 0.8s;
}

.section-1-desc.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-1-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: 176px;
    top: 706px;
    width: 316px;
    height: 84px;
    background: #0078D7;
    text-decoration: none;
    border-radius: 0;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 1.0s, transform 0.8s ease-out 1.0s;
}

.section-1-btn.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.btn-text {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 40px;
    color: #FFFFFF;
    line-height: 1;
}

.section-1-image {
    position: absolute;
    left: 807px;
    top: 216px;
    width: 1005px;
    height: 587px;
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 1s ease-out 0.5s, transform 1s ease-out 0.5s;
}

.section-1-image.animate-in {
    opacity: 1;
    transform: translateX(0);
    animation: floatUpDown 3s ease-in-out infinite;
    animation-delay: 1.5s;
}

.section-1-image img {
    display: block;
    width: 100%;
    height: auto;
}

/* 板块2样式 */
.section-2-content {
    width: 100%;
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

.section-2-title {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 75px;
    color: #000000;
    position: absolute;
    left: 438px;
    top: 73px;
    width: 1037px;
    height: 70px;
    line-height: 70px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

.section-2-title.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-2-cards {
    position: absolute;
    left: 292px;
    top: 219px;
    display: flex;
    gap: 20px;
}

.section-2-card {
    position: relative;
    width: 319px;
    height: 450px;
    background-image: url('../切图/广告平台标准/背景/2-框.png');
    background-size: 100% 100%;
    background-repeat: no-repeat;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.section-2-card:nth-child(1) {
    transition: opacity 0.8s ease-out 0.4s, transform 0.8s ease-out 0.4s;
}

.section-2-card:nth-child(2) {
    transition: opacity 0.8s ease-out 0.5s, transform 0.8s ease-out 0.5s;
}

.section-2-card:nth-child(3) {
    transition: opacity 0.8s ease-out 0.6s, transform 0.8s ease-out 0.6s;
}

.section-2-card:nth-child(4) {
    transition: opacity 0.8s ease-out 0.7s, transform 0.8s ease-out 0.7s;
}

.section-2-card.animate-in {
    opacity: 1;
    transform: translateY(0);
    /* Animation removed */
}

.card-2-img {
    position: absolute;
    right: 15px;
    bottom: 15px;
    display: block;
    max-height: 60%;
    max-width: 90%;
    object-fit: contain;
    z-index: 1;
}

.card-2-content {
    position: absolute;
    top: 51px;
    left: 31px;
    z-index: 2;
}

.card-2-title {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 25px;
    color: #000000;
}

.card-2-line {
    width: 150px;
    height: 3px;
    background: #0078D7;
    margin-top: 18px;
    margin-bottom: 16px;
    margin-left: -8px;
}

.card-2-value {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 38px;
    color: #000000;
}

/* 板块3样式 */
.section-3-content {
    width: 100%;
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

.section-3-title {
    position: absolute;
    left: 176px;
    top: 75px; /* 2235 - 2160 = 75 */
    width: 888px;
    height: 191px;
    z-index: 2;
}

.s3-title-line1 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 75px;
    color: #000000;
    line-height: 1;
    margin-bottom: 16px; /* Approximate spacing to fit height */
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

.s3-title-line1.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.s3-title-line2 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 100px;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.4s, transform 0.8s ease-out 0.4s;
}

.s3-title-line2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-3-desc {
    position: absolute;
    left: 175px;
    top: 380px; /* 2540 - 2160 = 380 */
    width: 614px;
    height: 84px;
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 25px;
    color: #000000;
    line-height: 1.5;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.6s, transform 0.8s ease-out 0.6s;
}

.section-3-desc.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-3-btn {
    display: block;
    position: absolute;
    left: 176px;
    top: 536px; /* 2696 - 2160 = 536 */
    width: 316px;
    height: 84px;
    background: #0078D7;
    text-decoration: none;
    z-index: 3;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.8s, transform 0.8s ease-out 0.8s;
}

.section-3-btn.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.s3-btn-text {
    position: absolute;
    left: 41px; /* 217 - 176 = 41 */
    top: 23px; /* 2719 - 2696 = 23 */
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 40px;
    color: #FFFFFF;
    line-height: 1;
}

.s3-btn-icon {
    position: absolute;
    left: 222px; /* 398 - 176 = 222 */
    top: 14px; /* 2710 - 2696 = 14 */
    width: 54px;
    height: 54px;
    display: block;
}

#section-3-img {
    position: absolute;
    left: 842px;
    top: 128px; /* 2288 - 2160 = 128 */
    width: 919px;
    height: 725px;
    display: block;
    z-index: 1;
}

/* 板块4样式 */
.section-4 {
    margin-top: -120px;
    z-index: 2;
    position: relative;
}

.section-4-content {
    width: 100%;
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    position: relative;
}

.section-4-title {
    position: absolute;
    left: 175px;
    top: 55px; /* 3175 - (3240 - 120) = 55 */
    width: 1082px;
    height: 191px;
    z-index: 2;
}

.s4-title-line1 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 75px;
    color: #000000;
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.2s, transform 0.8s ease-out 0.2s;
}

.s4-title-line1.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.s4-title-line2 {
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 100px;
    line-height: 1;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.4s, transform 0.8s ease-out 0.4s;
}

.s4-title-line2.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-4-desc {
    position: absolute;
    left: 175px;
    top: 310px; /* 上移描述文字 */
    width: 900px; /* 加宽文字框，让文字自然换行成两行 */
    height: auto; /* 高度自适应 */
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 25px;
    color: #000000;
    line-height: 1.5;
    z-index: 2;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.6s, transform 0.8s ease-out 0.6s;
}

.section-4-desc.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.section-4-btn {
    display: block;
    position: absolute;
    left: 176px;
    top: 500px; /* 下移按钮 */
    width: 316px;
    height: 84px;
    background: #0078D7;
    text-decoration: none;
    z-index: 3;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out 0.8s, transform 0.8s ease-out 0.8s;
}

.section-4-btn.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.s4-btn-text {
    position: absolute;
    left: 41px;
    top: 23px;
    font-family: 'JiYingHuiPianYuan', sans-serif;
    font-weight: normal;
    font-size: 40px;
    color: #FFFFFF;
    line-height: 1;
}

.s4-btn-icon {
    position: absolute;
    left: 222px;
    top: 14px;
    width: 54px;
    height: 54px;
    display: block;
}

    #section-4-img {
        position: absolute;
        left: 600px; /* Adjusted to avoid overlap */
        top: 250px; /* Adjusted to avoid overlap */
        width: 1069px;
        height: 552px;
        display: block;
        z-index: 1;
    }

    /* Section 6 */
    .section-6 {
        margin-top: -200px;
        position: relative;
        z-index: 3;
    }

/* 响应式样式 */
@media screen and (max-width: 1920px) {
    /* Section 1 */
    .section-1-text {
        left: 9.06vw;
        top: 12.76vw;
        width: 30.63vw;
        height: 9.95vw;
    }

    .title-line-1 {
        font-size: 3.91vw; /* 75/1920 */
    }

    .title-line-2 {
        font-size: 5.21vw; /* 100/1920 */
    }

    .section-1-subtitle {
        left: 9.17vw;
        top: 24.43vw;
        width: 52.08vw; /* 1000/1920 */
        height: 3.13vw; /* 60/1920 */
        line-height: 3.13vw;
        font-size: 1.98vw; /* 38/1920 */
        white-space: nowrap;
        overflow: hidden;
    }

    .section-1-desc {
        left: 9.11vw;
        top: 28.65vw;
        width: 33.13vw;
        height: 4.38vw;
        font-size: 1.30vw; /* 25/1920 */
    }

    .section-1-btn {
        left: 9.17vw;
        top: 36.77vw;
        width: 16.46vw;
        height: 4.38vw;
    }

    .btn-text {
        font-size: 2.08vw; /* 40/1920 */
    }

    .section-1-image {
        left: 42.03vw;
        top: 11.25vw;
        width: 52.34vw;
        height: 30.57vw;
    }

    /* Section 2 */
    .section-2-title {
        font-size: 3.91vw; /* 75/1920 */
        left: 22.81vw;
        top: 3.80vw;
        width: 54.01vw;
        height: 3.65vw;
        line-height: 3.65vw;
    }

    .section-2-cards {
        left: 15.21vw;
        top: 11.41vw;
        gap: 1.04vw;
    }

    .section-2-card {
        width: 16.61vw; /* 319/1920 */
        height: 23.44vw; /* 450/1920 */
    }

    .card-2-img {
        right: 0.78vw; /* 15/1920 */
        bottom: 0.78vw; /* 15/1920 */
        max-height: 60%;
        max-width: 90%;
    }

    .card-2-content {
        top: 2.66vw; /* 51/1920 */
        left: 1.61vw; /* 31/1920 */
    }

    .card-2-title {
        font-size: 1.30vw; /* 25/1920 */
    }

    .card-2-line {
        width: 7.81vw; /* 150/1920 */
        height: 0.16vw; /* 3/1920 */
        margin-top: 0.94vw; /* 18/1920 */
        margin-bottom: 0.83vw; /* 16/1920 */
        margin-left: -0.42vw; /* -8/1920 */
    }

    .card-2-value {
        font-size: 1.98vw; /* 38/1920 */
    }

    /* Section 3 */
    .section-3-title {
        left: 9.17vw;
        top: 3.91vw;
        width: 46.25vw;
        height: 9.95vw;
    }

    .s3-title-line1 {
        font-size: 3.91vw; /* 75/1920 */
        margin-bottom: 0.83vw;
    }

    .s3-title-line2 {
        font-size: 5.21vw; /* 100/1920 */
    }

    .section-3-desc {
        left: 9.11vw;
        top: 19.79vw;
        width: 31.98vw;
        height: 4.38vw;
        font-size: 1.30vw;
    }

    .section-3-btn {
        left: 9.17vw;
        top: 27.92vw;
        width: 16.46vw;
        height: 4.38vw;
    }

    .s3-btn-text {
        left: 2.14vw;
        top: 1.20vw;
        font-size: 2.08vw;
    }

    .s3-btn-icon {
        left: 11.56vw;
        top: 0.73vw;
        width: 2.81vw;
        height: 2.81vw;
    }

    #section-3-img {
        left: 43.85vw; /* 842/1920 */
        top: 6.67vw; /* 128/1920 */
        width: 47.86vw; /* 919/1920 */
        height: 37.76vw; /* 725/1920 */
    }

    /* Section 4 */
    .section-4 {
        margin-top: -6.25vw; /* -120/1920 */
    }

    .section-4-title {
        left: 9.11vw;
        top: 2.86vw; /* 55/1920 */
        width: 56.35vw;
        height: 9.95vw;
    }

    .s4-title-line1 {
        font-size: 3.91vw;
        margin-bottom: 0.83vw;
    }

    .s4-title-line2 {
        font-size: 5.21vw;
    }

    .section-4-desc {
        left: 9.11vw;
        top: 16.15vw; /* 310/1920 - 上移描述文字 */
        width: 46.88vw; /* 900/1920 - 加宽文字框 */
        height: auto; /* 高度自适应 */
        font-size: 1.30vw;
    }

    .section-4-btn {
        left: 9.17vw;
        top: 26.04vw; /* 500/1920 - 下移按钮 */
        width: 16.46vw;
        height: 4.38vw;
    }

    .s4-btn-text {
        left: 2.14vw;
        top: 1.20vw;
        font-size: 2.08vw;
    }

    .s4-btn-icon {
        left: 11.56vw;
        top: 0.73vw;
        width: 2.81vw;
        height: 2.81vw;
    }

    #section-4-img {
        left: 31.25vw; /* 600/1920 */
        top: 13.02vw; /* 250/1920 */
        width: 55.68vw; /* 1069/1920 */
        height: 28.75vw; /* 552/1920 */
    }
}

/* 大屏幕字体限制 */
@media screen and (min-width: 1920px) {
    .section {
        height: 1080px;
    }

    .section:first-of-type {
        margin-top: 100px;
    }

    .section-7 {
        height: 520px;
    }

    .title-line-1 {
        font-size: 75px;
    }

    .title-line-2 {
        font-size: 100px;
    }

    .section-1-subtitle {
        font-size: 38px;
    }

    .section-1-desc {
        font-size: 25px;
    }

    .section-1-btn {
        font-size: 40px;
    }

    .section-1-image {
        width: 1005px;
        height: 587px;
        left: 807px;
        top: 216px;
    }

    .section-2-title {
        font-size: 75px;
    }

    .card-2-title {
        font-size: 25px;
    }

    .card-2-value {
        font-size: 38px;
    }

    .calc-placeholder {
        font-size: 25px;
    }

    .calc-btn-text {
        font-size: 40px;
    }

    .calc-desc {
        font-size: 25px;
    }

    .s3-title-line1 {
        font-size: 75px;
    }

    .s3-title-line2 {
        font-size: 100px;
    }

    .section-3-desc {
        font-size: 25px;
    }

    .s3-btn-text {
        font-size: 40px;
    }

    #section-3-img {
        width: 919px;
        height: 725px;
        left: 842px;
        top: 128px;
    }

    .s4-title-line1 {
        font-size: 75px;
    }

    .s4-title-line2 {
        font-size: 100px;
    }

    .section-4-desc {
        font-size: 25px;
    }

    .s4-btn-text {
        font-size: 40px;
    }

    #section-4-img {
        width: 919px;
        height: 725px;
        left: 842px;
        top: 128px;
    }
}