:root {
    --font-title: "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-body: "HarmonyOS Sans", "PingFang SC", sans-serif;
    --grad-light-blue: linear-gradient(to bottom, #e0eeff 0%, #7eb4ff 100%);
    --grad-blue: linear-gradient(to bottom, #4481eb 0%, #1750c5 100%);
    --grad-mixed: linear-gradient(90deg, #8bbcff 10%, #5CA0FD 40%, #ff0000 60%, #ff5500 80%, #FF8D5D 100%);
}

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

body {
    background-color: #f5f5f5;
}

.hm-font {
    font-family: var(--font-body);
}

.text-grad-v {
    background: var(--grad-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-grad-mix {
    background: var(--grad-mixed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-grad-light {
    background: linear-gradient(180deg, #FFFFFF 0%, #AECFFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.slide-item {
    position: relative;
    width: 100%;
    line-height: 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.slide-bg-img {
    width: 100%;
    height: auto;
    display: block;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    line-height: 1.5;
}

.s1-header {
    position: absolute;
    top: 16%;
    left: 17%;
}

.s1-title {
    font-family: var(--font-title);
    font-size: 3.3vw;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 0.2vw;
}

.s1-subtitle {
    font-family: var(--font-title);
    font-size: 2.6vw;
    font-weight: 800;
    color: #333;
    letter-spacing: 0.1vw;
}

.s1-desc {
    font-size: 1.05vw;
    color: #666;
    margin-top: 2vw;
    letter-spacing: 0.05vw;
}

.s1-specs {
    position: absolute;
    top: 40.5%;
    left: 17%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spec-badge {
    background: #2b70fa;
    color: #fff;
    padding: 0.3vw 0.9vw;
    border-radius: 0.3vw;
    font-size: 1.25vw;
    font-weight: 700;
    margin-right: 0.8vw;
    transform: translateY(-1.6vw);
}

.spec-val {
    font-family: var(--font-title);
    font-size: 4.2vw;
    font-weight: 900;
    color: #222;
    line-height: 1;
}

.spec-unit {
    font-size: 1.4vw;
    font-weight: 700;
    color: #333;
    margin-left: 0.3vw;
}

.spec-plus {
    align-items: center;
    justify-content: center;
    display: flex;
    width: 2vw;
    height: 2vw;
    border-radius: 50%;
    background: #000;
    font-family: var(--font-title);
    font-size: 30px;
    font-weight: 900;
    margin: 0 1.5vw;
    color: #ffffff;
}

.s1-footer {
    position: absolute;
    top: 65%;
    left: 20%;
    width: 68%;
    display: flex;
    align-items: flex-start;
}

.s1-footer-left {
    width: 45%;
}

.footer-title {
    font-family: var(--font-title);
    font-size: 2vw;
    font-weight: 800;
    line-height: 1.5;
    margin-bottom: 1vw;
}

.s1-footer-right {
    width: 50%;
    padding-left: 5%;
    padding-top: 0.5vw;
}

.footer-list li {
    list-style: none;
    margin-bottom: 0.8vw;
    display: flex;
    align-items: center;
}

.footer-tag {
    padding: 0.2vw 0.6vw;
    font-size: 1.2vw;
    color: #fff;
    background: #2b70fa;
    border-radius: 0.2vw;
    margin-right: 0.6vw;
}

.footer-tag.grey {
    background: #5c7087;
}

.footer-txt {
    font-size: 1.3vw;
    font-weight: 900;
    color: #2b70fa;
}

.footer-txt.grey {
    color: #5c7087;
    font-weight: 900;
}

.s2-content {
    position: absolute;
    top: 30%;
    left: 17%;
    color: #fff;
}

.s2-title {
    font-family: var(--font-title);
    font-size: 2.8vw;
    margin-bottom: 2.5vw;
    letter-spacing: 0.1vw;
}

.s2-title strong {
    font-weight: 900;
}

.s2-title span {
    font-weight: 500;
    opacity: 0.9;
}

.s2-stats {
    display: flex;
    align-items: flex-start;
    font-family: var(--font-title);
    font-size: 2vw;
    font-weight: 900;
    line-height: 1;
}

.s2-fps {
    font-family: var(--font-body);
    font-size: 2vw;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.95);
    margin-left: 0.2vw;
    margin-right: 1.3vw;
}

.s2-or {
    font-family: var(--font-body);
    font-size: 1.6vw;
    font-weight: 400;
    align-self: center;
    margin-right: 1vw;
    transform: translateY(0.2vw);
}

.s2-desc {
    margin-top: 1.5vw;
    font-size: 1.1vw;
    opacity: 0.8;
    max-width: 55vw;
}

.s3-top {
    position: absolute;
    top: 18%;
    left: 16.8%;
}

.s3-title-blue {
    font-family: var(--font-title);
    font-size: 2.9vw;
    font-weight: 900;
    display: block;
}

.s3-title-black {
    font-family: var(--font-title);
    font-size: 2.5vw;
    font-weight: 900;
    color: #333;
    display: block;
}

.s3-desc {
    margin-top: 2vw;
    font-size: 1.05vw;
    color: #666;
    line-height: 1.8;
    max-width: 45vw;
}

.s3-bottom {
    position: absolute;
    top: 65%;
    left: 21.6%;
    width: 40%;
}

.s3-card-title {
    font-family: var(--font-title);
    font-size: 2vw;
    font-weight: 800;
    color: #2b70fa;
    line-height: 1.5;
    margin-bottom: 1vw;
}

.s3-card-title span {
    color: #333;
    display: block;
}

.s3-card-desc {
    font-size: 1.15vw;
    color: #666;
    line-height: 1.8;
}

.s4-header {
    position: absolute;
    top: 16%;
    left: 0;
    width: 100%;
    text-align: center;
}

.s4-title {
    font-family: var(--font-title);
    font-size: 2.7vw;
    font-weight: 900;
    color: #1a1a1a;
    margin-bottom: 1.2vw;
}

.s4-desc {
    font-size: 1.15vw;
    color: #333;
    display: inline-block;
    font-weight: 400;
}

.s5-content {
    position: absolute;
    top: 30%;
    left: 18%;
    width: 45%;
}

.s5-title {
    font-family: var(--font-title);
    font-size: 2.8vw;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 0.5vw;
}

.s5-subtitle {
    font-family: var(--font-title);
    font-size: 2.5vw;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 2vw;
}

.s5-desc {
    font-size: 1.1vw;
    color: var(--text-grey);
    line-height: 1.8;
    max-width: 80%;
}

.s6-content {
    position: absolute;
    top: 28%;
    left: 18%;
    width: 40%;
}

.s6-title {
    font-family: var(--font-title);
    font-size: 2.5vw;
    font-weight: 900;
    line-height: 1.4;
    margin-bottom: 0.5vw;
}

.s6-subtitle {
    font-family: var(--font-title);
    font-size: 2.5vw;
    font-weight: 900;
    color: var(--text-dark);
    margin-bottom: 2vw;
}

.s6-desc {
    font-size: 1.2vw;
    color: var(--text-grey);
    line-height: 1.8;
    max-width: 90%;
}

.s6-dim {
    position: absolute;
    font-family: var(--font-body);
    font-size: 0.9vw;
    color: #666;
    opacity: 0.8;
}

.dim-top {
    top: 43%;
    left: 56.5%;
}

.dim-left {
    top: 60%;
    left: 52%;
}

.dim-bottom {
    top: 79%;
    left: 62.5%;
}

.s7-content {
    position: absolute;
    top: 32%;
    left: 18%;
    width: 40%;
}

.s7-title {
    font-family: var(--font-title);
    font-size: 2.8vw;
    font-weight: 900;
    margin-bottom: 0.5vw;
}

.s7-subtitle {
    font-family: var(--font-title);
    font-size: 2.8vw;
    font-weight: 900;
    color: #fff;
    margin-bottom: 2.5vw;
}

.s7-desc {
    font-size: 1.05vw;
    color: #d0d0d0;
    line-height: 1.8;
    max-width: 85%;
}

.bubble-txt {
    position: absolute;
    font-family: var(--font-body);
    font-size: 0.9vw;
    font-weight: 700;
    color: #fff;
    text-align: center;
    width: 8vw;
    transform: translateX(-50%);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.bub-transformer {
    top: 18.5%;
    left: 66%;
}

.bub-yolo {
    top: 25.5%;
    left: 78.5%;
}

.bub-internvl {
    top: 33.5%;
    left: 54.5%;
}

.bub-cnn {
    top: 39%;
    left: 63.8%;
}

.bub-qwen {
    top: 40%;
    left: 73.3%;
}

.bub-llm {
    top: 54%;
    left: 69.6%;
}

.s8-header {
    position: absolute;
    top: 12%;
    width: 100%;
    text-align: center;
}

.s8-title {
    font-family: var(--font-title);
    font-size: 2.6vw;
    font-weight: 900;
    color: var(--text-dark);
    letter-spacing: 0.1vw;
}

.scene-label {
    position: absolute;
    font-family: var(--font-title);
    font-size: 1.1vw;
    font-weight: 700;
    color: #fff;
    transform: translateX(-50%);
    white-space: nowrap;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.6);
}

.sc-row1 {
    top: 48.5%;
}

.sc-col1 {
    left: 26%;
}

.sc-col2 {
    left: 50%;
}

.sc-col3 {
    left: 74%;
}

.sc-row2 {
    top: 81.5%;
}