/*html {*/
/*    font-size: 16px;*/
/*    -webkit-text-size-adjust: 100%;*/
/*    -ms-text-size-adjust: 100%;*/
/*}*/
/*@media screen and (min-width: 640px) {*/
/*    html {*/
/*        font-size: calc(15px + (16.5 - 15) * ((100vw - 640px) / (1024 - 640)));*/
/*    }*/
/*}*/

/*@media screen and (min-width: 1024px) {*/
/*    html {*/
/*        font-size: calc(16.5px + (18 - 16.5) * ((100vw - 1024px) / (1440 - 1024)));*/
/*    }*/
/*}*/

/*@media screen and (min-width: 1440px) {*/
/*    html {*/
/*        font-size: 18px;*/
/*    }*/

/*}*/

/*@media screen and (max-width: 768px) {*/
/*    html {*/
/*        font-size: 16px !important;*/
/*        -webkit-text-size-adjust: 100%;*/
/*        -ms-text-size-adjust: 100%;*/
/*    }*/
/*}*/

/*:root {*/
/*    --font-xxs: clamp(0.625rem, 0.25vw, 0.75rem);*/
/*    --font-xs: clamp(0.75rem, 0.3vw, 0.875rem);*/
/*    --font-sm: clamp(0.875rem, 0.35vw, 0.9375rem);*/
/*    --font-base: clamp(0.9375rem, 0.4vw, 1rem);*/
/*    --font-md: clamp(1rem, 0.45vw, 1.125rem);*/
/*    --font-lg: clamp(1.125rem, 0.55vw, 1.25rem);*/
/*    --font-xl: clamp(1.25rem, 0.7vw, 1.5rem);*/
/*    --font-2xl: clamp(1.5rem, 0.85vw, 1.875rem);*/
/*    --font-3xl: clamp(1.875rem, 1vw, 2.5rem);*/
/*    --font-4xl: clamp(2.5rem, 1.2vw, 3rem);*/
/*}*/

/*@media screen and (max-width: 768px) {*/
/*    :root {*/
/*        --font-xxs: clamp(0.9375rem, 2vw, 1rem);*/
/*        --font-xs: clamp(1rem, 2.3vw, 1.0625rem);*/
/*        --font-sm: clamp(1.0625rem, 2.6vw, 1.125rem);*/
/*        --font-base: clamp(1.125rem, 2.9vw, 1.25rem);*/
/*        --font-md: clamp(1.25rem, 3.3vw, 1.375rem);*/
/*        --font-lg: clamp(1.375rem, 3.8vw, 1.625rem);*/
/*        --font-xl: clamp(1.625rem, 4.3vw, 1.875rem);*/
/*        --font-2xl: clamp(1.875rem, 5vw, 2.25rem);*/
/*        --font-3xl: clamp(2.25rem, 5.8vw, 3rem);*/
/*        --font-4xl: clamp(3rem, 6.8vw, 4rem);*/
/*    }*/
/*}*/

/* ============================================
   ug-sec1 
   ============================================ */
.ug-page-body{
    margin: 0;
}

.ug-sec1 {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

.ug-sec1-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.ug-sec1-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ug-sec1-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-top: 8vh;
    color: #fff;
}

.ug-sec1-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5em;
    margin: 0 0 0.6em;
    font-weight: 600;
    line-height: 1.2;
}

.ug-sec1-brand {
    font-size: var(--font-4xl);
    color: #f4c872;
}

.ug-sec1-model {
    font-size: var(--font-4xl);
    color: #f4c872;
}

.ug-sec1-badge {
    font-size: var(--font-lg);
    color: rgba(255,255,255,0.85);
    border-radius: 4px;
    padding: 0.15em 0.5em;
    font-weight: 400;
    background: rgb(231 71 71 / 90%);
}

.ug-sec1-subtitle {
    font-size: var(--font-2xl);
    color: #fff;
    margin: 0;
    letter-spacing: 0.05em;
    font-weight:600
}

@media screen and (max-width: 768px) {
    .ug-sec1 {
        min-height: 500px;
        height: 55vh;
    }
    .ug-sec1-content {
        padding-top: 6vh;
    }
    .ug-sec1-title {
        flex-wrap: wrap;
        gap: 0.3em 0.5em;
    }
}

/* ============================================
   ug-sec2 卡片网格
   ============================================ */
.ug-sec2 {
    background: #0a0a0ae6;
    padding: 4vw 3vw;
}

.ug-sec2-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec2-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
}

.ug-sec2-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1vw;
    max-width: 1400px;
    margin: 0 auto;
}

.ug-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 1 / 1.15;
    box-shadow: 0 4px 24px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
}

.ug-card::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: rgba(0,0,0,0.15);
    pointer-events: none;
}

.ug-card > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.ug-card-text {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2;
    padding: 1.4em 1.2em;
}

.ug-card-title {
    font-size: var(--font-xl);
    color: #ffffff;
    margin: 0 0 0.5em;
    font-weight: 700;
    line-height: 1.3;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}

.ug-card-desc {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.75);
    margin: 0;
    line-height: 1.7;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

/* 第三排两个卡片，高度为上方一半 */
.ug-card--half {
    aspect-ratio: 2 / 0.65;
    grid-column: span 2;
}

/* 平板响应式：2列 */
@media screen and (max-width: 1024px) {
    .ug-sec2-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5vw;
    }
    .ug-card {
        aspect-ratio: 1 / 1;
    }
    .ug-card--half {
        aspect-ratio: 2 / 1;
        grid-column: span 2;
    }
}

/* 移动端响应式 */
@media screen and (max-width: 768px) {
    .ug-sec2 {
        padding: 6vw 4vw;
    }
    .ug-sec2-grid {
        grid-template-columns: 1fr;
        gap: 3vw;
    }
    .ug-card {
        aspect-ratio: 3 / 4;
        grid-column: span 1;
    }
    .ug-card--half {
        aspect-ratio: 9 / 7;
        grid-column: span 1;
    }
    .ug-card-text {
        padding: 3em;
    }
 .ug-card-desc {
    font-size: var(--font-lg);
} 
.ug-card::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
   background: rgb(0 0 0 / 0%);
    pointer-events: none;
}
}

/* ============================================
   ug-sec3 处理器性能展示
   ============================================ */
.ug-sec3 {
    background: #000102;
    padding: 4vw 3vw;
}

.ug-sec3-header {
    text-align: center;
    margin-bottom: 2.5vw;
}

.ug-sec3-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0 0 0.3em;
    line-height: 1.3;
}

.ug-sec3-title sup {
    font-size: 0.5em;
    vertical-align: super;
}

.ug-sec3-subtitle {
    font-size: var(--font-xl);
    color: rgba(255,255,255,0.7);
    margin: 0;
    font-weight: 500;
}

.ug-sec3-img {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec3-img img {
    max-width: 980px;
    width: 100%;
    height: auto;
    display: inline-block;
}

.ug-sec3-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2vw;
    max-width: 1000px;
    margin: 0 auto;
    align-items: stretch;
}

.ug-sec3-col {
    display: flex;
    flex-direction: column;
    gap: 1.2vw;
}

.ug-sec3-card {
    background: #242424;
    border-radius: 16px;
    padding: 1.8em 2em;
    border: 1px solid rgba(255,255,255,0.06);
}

.ug-sec3-tips {
    padding: 1rem var(--spacing-container, 1.5rem);
    font-size: var(--font-xs);
    color: #666;
    max-width: 1000px;
    margin: 0 auto;
}
/* 平板响应式 */
@media screen and (max-width: 1024px) {
    .ug-sec3-grid {
        gap: 2vw;
    }
    .ug-sec3-card {
        padding: 1.5em;
    }
    .ug-sec3-bar-badge {
        left: 1.5em;
        bottom: 1.4em;
    }
}

/* 左上 规格卡片 */
.ug-sec3-card--spec {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2em 2.5em;
    align-items: start;
}

.ug-sec3-spec-item {
    display: flex;
    flex-direction: column;
    gap: 0.35em;
}

.ug-sec3-spec-val {
    font-size: var(--font-2xl);
    color: #ffffff;
    font-weight: 700;
}

.ug-sec3-spec-label {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.45);
}

/* 右上 & 右下 条形图卡片 */
.ug-sec3-card--bar {
    display: flex;
    align-items: center;
    gap: 1.5em;
}

.ug-sec3-bar-left {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-self: stretch;
    min-width: 120px;
}

.ug-sec3-bar-left .ug-sec3-bar-label {
    font-size: var(--font-lg);
    color: rgba(255,255,255,0.5);
}

.ug-sec3-bar-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.6em;
}

.ug-sec3-bar-right .ug-sec3-bar-name {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.85);
}

.ug-sec3-bar-track {
    height: 10px;
    background: rgba(255,255,255,0.08);
    border-radius: 5px;
    overflow: hidden;
}

.ug-sec3-bar-fill {
    height: 100%;
    background: #3aa8f5;
    border-radius: 5px;
}

.ug-sec3-bar-fill--dim {
    background: rgba(255,255,255,0.15);
}

.ug-sec3-bar-badge {
    display: flex;
    align-items: center;
    gap: 0.15em;
}

.ug-sec3-bar-arrow {
    font-size: var(--font-xl);
    color: #3aa8f5;
    line-height: 1;
}

.ug-sec3-bar-percent {
    font-size: var(--font-3xl);
    color: #3aa8f5;
    font-weight: 700;
    line-height: 1;
}

/* 左下 高亮卡片 */
.ug-sec3-card--highlight {
    display: flex;
    align-items: center;
    gap: 1.5em;
}

.ug-sec3-hl-percent {
    font-size: var(--font-3xl);
    color: #3aa8f5;
    font-weight: 700;
}

.ug-sec3-hl-text {
    display: flex;
    flex-direction: column;
    gap: 0.2em;
}

.ug-sec3-hl-text span {
    font-size: var(--font-lg);
    color: rgba(255,255,255,0.7);
}

/* 平板响应式 */
@media screen and (max-width: 1024px) {
    .ug-sec3-grid {
        gap: 2vw;
    }
    .ug-sec3-card {
        padding: 1.5em;
    }
}

/* 移动端响应式 */
@media screen and (max-width: 768px) {
    .ug-sec3 {
        padding: 8vw 4vw;
    }
    .ug-sec3-grid {
        grid-template-columns: 1fr;
        gap: 3vw;
    }
    .ug-sec3-col {
        gap: 3vw;
    }
    .ug-sec3-img img {
        max-width: 680px;
    }
    .ug-sec3-spec-row {
        gap: 1.5em;
    }
    .ug-sec3-card--bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8em;
    }
    .ug-sec3-bar-left {
        flex-direction: row;
        align-items: center;
        width: 100%;
        min-width: auto;
    }
    .ug-sec3-bar-right {
        width: 100%;
    }
.ug-sec3-spec-label {
    font-size: var(--font-lg);
}   
.ug-sec3-spec-item {
    padding-top: 20px;
}
.ug-sec3-hl-text span {
    font-size: var(--font-xl);
}
.ug-sec3-bar-left .ug-sec3-bar-label {
    font-size: var(--font-xl);
}
.ug-sec3-bar-right .ug-sec3-bar-name {
    font-size: var(--font-lg);
}
.ug-sec3-tips {
    font-size: var(--font-base);

}
}
/* ============================================
   ug-sec4 相册黑科技
   ============================================ */
.ug-sec4 {
    background: #161616;
    padding: 4vw 3vw;
}

.ug-sec4-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec4-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0 0 0.4em;
    line-height: 1.3;
}

.ug-sec4-desc {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.7);
    margin: 0;
    line-height: 1.7;
}

.ug-sec4-img {
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
}

.ug-sec4-img img {
    width: 100%;
    height: auto;
    display: inline-block;
    border-radius: 12px;
}

/* sec4 内 carousel-card 居中 */
.ug-sec4 .carousel-card {
    margin-left: auto;
    margin-right: auto;
    margin-top: 3vw;
}

@media screen and (max-width: 768px) {
    .ug-sec4 {
        padding: 8vw 4vw;
    }
    .ug-sec4-header {
        margin-bottom: 5vw;
    }
    .ug-sec4-desc br {
        display: none;
    }
    .ug-sec4 .carousel-card {
        margin-top: 5vw;
    }
    .ug-sec4-desc {
    font-size: var(--font-xl);
}
}

/* ============================================
   ug-sec5 绿联云影视中心
   ============================================ */
.ug-sec5 {
    background: #000000;
    padding: 4vw 3vw;
}

.ug-sec5-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec5-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0 0 0.4em;
    line-height: 1.3;
}

.ug-sec5-desc {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.7);
    margin: 0;
    line-height: 1.7;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.ug-sec5-img {
    text-align: center;
    max-width: 1400px;
    margin: 0 auto 2vw;
}

.ug-sec5-img img {
    width: 100%;
    height: auto;
    display: inline-block;
}

.ug-sec5-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2vw;
    max-width: 1400px;
    margin: 0 auto;
}

.ug-sec5-feature {
    background: #141414;
    border-radius: 12px;
    padding: 1.5em;
    display: flex;
    flex-direction: column;
    gap: 0.6em;
}

.ug-sec5-feature-title {
    font-size: var(--font-lg);
    color: #ffffff;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.4em;
}

.ug-sec5-feature-title::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 24px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    flex-shrink: 0;
}

.ug-sec5-feature:nth-child(1) .ug-sec5-feature-title::before { background-image: url('../images/icon10.png'); }
.ug-sec5-feature:nth-child(2) .ug-sec5-feature-title::before { background-image: url('../images/icon11.png'); }
.ug-sec5-feature:nth-child(3) .ug-sec5-feature-title::before { background-image: url('../images/icon12.png'); }
.ug-sec5-feature:nth-child(4) .ug-sec5-feature-title::before { background-image: url('../images/icon13.png'); }
.ug-sec5-feature:nth-child(5) .ug-sec5-feature-title::before { background-image: url('../images/icon14.png'); }
.ug-sec5-feature:nth-child(6) .ug-sec5-feature-title::before { background-image: url('../images/icon15.png'); }
.ug-sec5-feature:nth-child(7) .ug-sec5-feature-title::before { background-image: url('../images/icon17.png'); }
.ug-sec5-feature:nth-child(8) .ug-sec5-feature-title::before { background-image: url('../images/icon16.png'); }

.ug-sec5-feature p {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.6);
    margin: 0;
    line-height: 1.6;
}

@media screen and (max-width: 1024px) {
    .ug-sec5-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 2vw;
    }
}

/* ============================================
   ug-sec6 DDR5 + 网口（左右图文交替）
   ============================================ */
.ug-sec6 {
    background: #000000;
    padding: 4vw 3vw;
}

.ug-sec6-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.ug-sec6-row {
    display: flex;
    align-items: center;
    gap: 4vw;
    min-height: 10vh;
}

.ug-sec6-row + .ug-sec6-row {
    margin-top: 6vw;
}

.ug-sec6-col-text,
.ug-sec6-col-img {
    flex: 1;
    min-width: 0;
}

.ug-sec6-col-text {
    display: flex;
    flex-direction: column;
    gap: 1em;
    padding: 2em 0;
}

.ug-sec6-tag {
    background: linear-gradient(to right top, #c28a3d, #f8ddae);
    color: #000;
    font-size: var(--font-sm);
    font-weight: 700;
    padding: 0.5em 1.5em;
    border-radius: 50px;
    display: inline-block;
    align-self: flex-start;
}

.ug-sec6-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0;
    line-height: 1.35;
}

.ug-sec6-desc {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.65);
    margin: 0;
    line-height: 1.7;
}

/* 文本下方数据卡片 */
.ug-sec6-card {
    margin-top: 1.5em;
    background: #1a1a1a;
    border-radius: 14px;
    padding: 1.5em 1.8em;
}

.ug-sec6-card-body {
    display: flex;
    align-items: center;
    gap: 2.5em;
}

.ug-sec6-card-left {
    flex-shrink: 0;
}

.ug-sec6-card-label {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.5);
    margin: 0 0 0.3em;
}

.ug-sec6-card-num {
    font-size: 2.4rem;
    font-weight: 800;
    color: #3b9cff;
    line-height: 1.15;
}

.ug-sec6-card-num .unit {
    font-size: 0.65em;
    color: #3b9cff;
}

.ug-sec6-card-right {
    display: flex;
    flex-direction: column;
    gap: 0.5em;
    flex: 1;
}

.ug-sec6-card-row {
    display: flex;
    align-items: center;
    gap: 0.7em;
}

.ug-sec6-card-row .ug-sec6-card-label {
    margin: 0;
    color: rgba(255,255,255,0.55);
    width: 70px;
    flex-shrink: 0;
    white-space: nowrap;
}

.ug-sec6-card-val {
    border-radius: 4px;
    padding: 0.25em 0.9em;
    font-size: var(--font-sm);
    font-weight: 700;
    white-space: nowrap;
}

.ug-sec6-card-val.ddr5 {
    background: linear-gradient(90deg, #1a6bcf, #3b9cff);
    color: #fff;
    flex: 1;
    text-align: center;
}

.ug-sec6-card-val.ddr4 {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.45);
    width: 45%;
    text-align: center;
}

.ug-sec6-arrow {
    width: 18px;
    height: 18px;
    fill: #3b9cff;
    flex-shrink: 0;
}

.ug-sec6-card-ps {
    margin-top: 1em;
    padding-top: 0.8em;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: var(--font-xs);
    color: rgba(255,255,255,0.35);
}

/* 网口卡片特有：标签在上、条形在下（上下结构） */
.ug-sec6-card-right.net-card {
    gap: 0.7em;
}

.ug-sec6-card-right.net-card .ug-sec6-card-item {
    display: flex;
    flex-direction: column;
    gap: 0.3em;
}

.ug-sec6-card-right.net-card .ug-sec6-card-label {
    margin: 0;
    color: rgba(255,255,255,0.55);
    font-size: var(--font-sm);
}

/* 条形容器：val + arrow 横排 */
.ug-sec6-card-bar-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ug-sec6-arrow-up {
    width: 40px;
    height: auto;
    fill: #3b9cff;
    vertical-align: middle;
    margin-left: -4px;
}

.ug-sec6-card-val.net-fast {
    background: linear-gradient(90deg, #1a6bcf, #3b9cff);
    color: #fff;
    border-radius: 5px;
    padding: 0.25em 1em;
    font-size: var(--font-sm);
    font-weight: 700;
    white-space: nowrap;
    text-align: center;
    flex: 1;
}

.ug-sec6-card-val.net-slow {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.45);
    border-radius: 5px;
    padding: 0.25em 1em;
    font-size: var(--font-sm);
    font-weight: 700;
    white-space: nowrap;
    text-align: center;
}

.ug-sec6-lit-img {
    margin-top: 1.5em;
    width: 70%;
}

.ug-sec6-lit-img img {
    width: 100%;
    height: auto;
    display: block;
}

.ug-sec6-col-img img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

/* 第二行反向排列 */
.ug-sec6-row:nth-child(2) {
    flex-direction: row-reverse;
}

@media screen and (max-width: 1024px) {
    .ug-sec6-row {
        gap: 3vw;
    }
    .ug-sec6-title {
        font-size: var(--font-2xl);
    }
}

@media screen and (max-width: 768px) {
    .ug-sec6 {
        padding: 8vw 4vw;
    }
    .ug-sec6-row {
        flex-direction: column !important;
        min-height: auto;
        gap: 4vw;
    }
    .ug-sec6-row + .ug-sec6-row {
        margin-top: 8vw;
    }
    .ug-sec6-col-text {
        text-align: center;
        align-items: center;
        padding: 1em 0;
    }
    .ug-sec6-tag {
        align-self: center;
    }
    .ug-sec6-lit-img {
        width: 85%;
        margin: 1.5em auto 0;
    }
    .ug-sec6-card {
        padding: 1.2em 1em;
        width: 100%;
    }
    .ug-sec6-card-body {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.2em;
    }
    .ug-sec6-card-num {
        font-size: 3rem;
    }
    .ug-sec6-card-right {
        width: 100%;
        gap: 0.4em;
    }
    .ug-sec6-card-right.net-card .ug-sec6-card-label {
        font-size: var(--font-xl);
        display: flex;
    }
 .ug-sec5-desc {
    font-size: var(--font-xl);
}
.ug-sec5-feature-title {
    font-size: var(--font-xl);
}
.ug-sec5-feature p {
    font-size: var(--font-lg);
}
.ug-sec6-tag {
    font-size: var(--font-xl);
}
.ug-sec6-desc {
    font-size: var(--font-xl);
}
.ug-sec6-card-label {
    font-size: var(--font-lg);
}
.ug-sec6-card-val {
    font-size: var(--font-lg);
}
.ug-sec6-card-row {
    gap: 4.7em;
}
.ug-sec6-card-ps {
    font-size: var(--font-base);
}
.ug-sec6-card-val.net-fast {
    font-size: var(--font-xl);
}
.ug-sec6-card-val.net-slow {
   font-size: var(--font-xl);
}
}

/* ============================================
   ug-sec7 PCIe 4.0 居中展示
   ============================================ */
.ug-sec7 {
    background: #000000;
    padding: 4vw 3vw;
}

.ug-sec7-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.ug-sec7-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec7-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0 0 0.5em;
    line-height: 1.35;
}

.ug-sec7-desc {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.65);
    margin: 0;
    line-height: 1.7;
}

.ug-sec7-img {
    text-align: center;
}

.ug-sec7-img img {
    max-width: 100%;
    width: auto;
    height: auto;
    display: inline-block;
    border-radius: 12px;
}

@media screen and (max-width: 768px) {
    .ug-sec7 {
        padding: 8vw 4vw;
    }
    .ug-sec7-header {
        margin-bottom: 5vw;
    }
    .ug-sec7-desc br {
        display: none;
    }
    .ug-sec7-img img {
        max-height: 40vh;
    }
.ug-sec7-desc {
    font-size: var(--font-xl);
}    
}

/* ============================================
   ug-sec8 卡片滚动堆叠效果
   ============================================ */
.ug-sec8 {
    background: #000000;
    padding: 4vw 3vw 1vh;
}

.ug-sec8-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.ug-sec8-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec8-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0;
    line-height: 1.35;
}

/* 滚动卡片列表 */
#cards {
    --card-height: clamp(22rem, 38vw, 36rem);
    --card-gap: clamp(2rem, 3vw, 3rem);
    --card-offset: 1rem;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0;
    padding-bottom: calc(1 * var(--card-gap));
    list-style: none;
    display: grid;
    grid-template-rows: repeat(4, var(--card-height));
    gap: var(--card-gap);
}
@media screen and (max-width: 1024px) {
#cards {
    padding-bottom: calc(3 * var(--card-gap));
}
}
#cards li.ug-sec8-card {
    position: sticky;
    top: 8vh;
    height: var(--card-height);
    padding-top: calc(var(--index) * var(--card-offset));
    perspective: 62.5rem;
    min-height: 600px;
}
@media screen and (max-width: 768px) {
#cards li.ug-sec8-card {
    min-height: auto;
}
 #cards {
    padding-bottom: calc(1 * var(--card-gap));
}
}
#cards .ug-sec8-card__content {
    position: relative;
    isolation: isolate;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    transform-origin: top center;
    transform-style: preserve-3d;
    will-change: transform, filter;
    animation: sec8-scale-card linear forwards;
    animation-timeline: view();
    animation-range: exit-crossing 0% exit-crossing 100%;
}

#cards .ug-sec8-card__content::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 40%, rgba(0,0,0,0.55) 100%);
    pointer-events: none;
}

#cards .ug-sec8-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
@media screen and (max-width: 1024px) {
 #cards .ug-sec8-card-img {
   object-fit: contain;
}   
}
/* 左上角文案 */
.ug-sec8-card-text {
    position: absolute;
    z-index: 3;
    left: clamp(2rem, 4vw, 3.5rem);
    top: clamp(2rem, 4vw, 3rem);
    color: #fff;
}

.ug-sec8-card-text h3 {
    font-size: var(--font-2xl);
    font-weight: 700;
    margin: 0 0 0.25em;
    line-height: 1.3;
    text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.ug-sec8-card-text p {
    font-size: var(--font-md);
    margin: 0;
    opacity: 0.85;
    text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

/* 序号 - 卡片右上角大号水印 */
#cards .number {
    position: absolute;
    top: 0.3rem;
    right: 1rem;
    z-index: 3;
    font-size: clamp(4rem, 2vw, 7rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    opacity: 0.15;
    line-height: 1;
    color: #ffffff;
}

/* 各卡片 index */
#cards li:nth-child(1) { --index: 1; }
#cards li:nth-child(2) { --index: 2; }
#cards li:nth-child(3) { --index: 3; }
#cards li:nth-child(4) { --index: 4; }

@keyframes sec8-scale-card {
    to {
        transform: scale(0.85) translateY(-8vh) rotateX(-18deg);
        filter: brightness(0.65);
        border-radius: 14px;
        box-shadow: 0 3rem 5rem -1rem rgba(0,0,0,0.5);
    }
}

@media screen and (max-width: 1024px) {
    #cards {
        --card-height: clamp(20rem, 45vw, 32rem);
    }
    .ug-sec8-title {
        font-size: var(--font-2xl);
    }
}

/* ============================================
   ug-sec9 UGOS Pro APP
   ============================================ */
.ug-sec9 {
    background: #000000;
    padding: 4vw 3vw;
}

.ug-sec9-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec9-title {
    font-size: var(--font-3xl);
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 0.5em;
    line-height: 1.3;
}

.ug-sec9-subtitle {
    font-size: var(--font-md);
    color: rgba(255,255,255,0.65);
    margin: 0;
    line-height: 1.7;
}

.ug-sec9-img {
    text-align: center;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.ug-sec9-img img {
    width: 100%;
    height: auto;
    display: inline-block;
    border-radius: 12px;
}

.ug-sec9-img::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: linear-gradient(to right, transparent 80%, #000 100%),
        linear-gradient(to bottom, transparent 70%, #000 100%);
    pointer-events: none;
}

.ug-sec9-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5vw;
    max-width: 1200px;
    margin: 3vw auto 0;
    padding: 0;
}

.ug-sec9-card {
    background: #141414;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
    display: flex;
    flex-direction: column;
}

.ug-sec9-card-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    display: block;
}

.ug-sec9-card-text {
    padding: 1.4em 1.3em;
    display: flex;
    flex-direction: column;
    gap: 0.5em;
    flex: 1;
}

.ug-sec9-card-text h3 {
    font-size: var(--font-lg);
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.3;
}

.pro-grad {
    background: linear-gradient(135deg, #f5d598 0%, #e8a838 50%, #c87d0a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ug-sec9-card-text p {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.6);
    margin: 0;
    line-height: 1.65;
}
.lite-grad{
     font-size: var(--font-xs); 
         color: #838383;  
}
@media screen and (max-width: 1024px) {
    .ug-sec9-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2vw;
    }
}

@media screen and (max-width: 768px) {
    .ug-sec9 {
        padding: 8vw 4vw;
    }
    .ug-sec9-header {
        margin-bottom: 5vw;
    }
    .ug-sec9-title {
        font-size: var(--font-2xl);
    }
    .ug-sec9-subtitle br {
        display: none;
    }
    .ug-sec9-grid {
        /* grid-template-columns: 1fr; */
        gap: 2.5vw;
        margin-top: 6vw;
        max-width: 100%;
        margin-left: 0;
        margin-right: 0;
    }
    .ug-sec9-card-img {
        height: 300px;
    }
 .ug-sec8-card-text h3 {
    font-size: var(--font-xl);
}   
    #cards .ug-sec8-card-img {
        object-fit: cover;
    }
    .ug-sec9-subtitle {
    font-size: var(--font-xl);
}
.ug-sec9-card-text h3 {
    font-size: var(--font-xl);
}
.ug-sec9-card-text p {
    font-size: var(--font-lg);
}
.lite-grad {
    font-size: var(--font-lg);
}
}

/* ============================================
   ug-sec10 安全特性区域
   ============================================ */
.ug-sec10 {
    background: #000000;
    padding: 4vw 3vw;
}

.ug-sec10-header {
    text-align: center;
    margin-bottom: 3vw;
}

.ug-sec10-title {
    font-size: var(--font-3xl);
    color: #ffffff;
    font-weight: 700;
    margin: 0 0 1.5vw;
    line-height: 1.3;
}

/* 四个安全认证图标并列 */
.ug-sec10-safe-icons {
    list-style: none;
    margin: 0 auto 2vw;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2vw;
    max-width: 800px;
}

.ug-sec10-safe-icons li img {
    height: clamp(30px, 5vw, 45px);
    width: auto;
    display: block;
}

/* badge 图片四周渐变黑 */
.ug-sec10-badge {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.ug-sec10-badge img {
    width: 100%;
    height: auto;
    display: inline-block;
    border-radius: 12px;
}

.ug-sec10-badge::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: linear-gradient(to right, transparent 80%, #000 100%),
        linear-gradient(to bottom, transparent 70%, #000 100%);
    pointer-events: none;
}

/* security 容器：纵向布局 */
.ug-sec10-security {
    max-width: 1200px;
    margin: 3vw auto 0;
    display: flex;
    flex-direction: column;
    gap: 1.5vw;
}

/* 图标网格：4列并列 */
.ug-sec10-icon-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2vw;
}

.ug-sec10-icon-item {
    background: #141414;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,0.06);
    padding: 1.2em 1em;
    display: flex;
    align-items: center;
    gap: 0.8em;
}
@media screen and (max-width: 768px) {
    .ug-sec10-icon-item {
     display: flex;
    flex-direction: column;
    align-items: flex-start;
}
}
.ug-sec10-icon-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
}

.ug-sec10-icon-text {
    display: flex;
    flex-direction: column;
    gap: 0.15em;
}

.ug-sec10-icon-text h4 {
    font-size: var(--font-sm);
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.3;
}

.ug-sec10-icon-text p {
    font-size: var(--font-xs);
    color: rgba(255,255,255,0.55);
    margin: 0;
    line-height: 1.45;
}

/* 底部两卡片：并排 */
.ug-sec10-bottom-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5vw;
}

/* 大卡片 */
.ug-sec10-sec-card {
    background: #141414;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.06);
    overflow: hidden;
    display: flex;
    flex-direction: row;
    align-items: center;
    max-height: 200px;
}

.ug-sec10-sec-text {
    flex: 1;
    padding: 1.2em;
}

.ug-sec10-sec-text h3 {
    font-size: var(--font-lg);
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    line-height: 1.4;
}

.ug-sec10-sec-text p {
    font-size: var(--font-sm);
    color: rgba(255,255,255,0.6);
    margin: 0.4em 0 0;
    line-height: 1.6;
}

.ug-sec10-sec-card img {
    width: auto;
    height: 180px;
    object-fit: cover;
    display: block;
    padding: 16px;
    flex-shrink: 0;
}

@media screen and (max-width: 1024px) {
    .ug-sec10-icon-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2vw;
    }
    .ug-sec10-bottom-cards {
        grid-template-columns: 1fr;
        gap: 2vw;
    }
}

@media screen and (max-width: 768px) {
    .ug-sec10 {
        padding: 8vw 4vw;
    }
    .ug-sec10-title {
        font-size: var(--font-2xl);
        padding-bottom: 20px;
    }
    .ug-sec10-safe-icons {
        gap: 3vw;
    }
    .ug-sec10-safe-icons li {
        flex: 0 0 calc(50% - 2vw);
        display: flex;
        justify-content: center;
    }
    .ug-sec10-safe-icons li img {
        height: 60px;
    }
    .ug-sec10-security {
        gap: 2.5vw;
    }
    .ug-sec10-icon-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2vw;
    }
    .ug-sec10-bottom-cards {
        grid-template-columns: 1fr;
        gap: 2.5vw;
    }
    .ug-sec10-sec-card {
        max-height: none;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }
    .ug-sec10-sec-card img {
        height: 260px;
    }
.ug-sec10-icon-text h4 {
    font-size: var(--font-xl);
} 
.ug-sec10-icon-text p {
    font-size: var(--font-md);
}
.ug-sec10-sec-text h3 {
    font-size: var(--font-xl);

}
.ug-sec10-sec-text p {
    font-size: var(--font-lg);

}
}

/* ============================================
   ug-sec11 极客游乐场 / 多协议支持
   ============================================ */
.container-sec.ug-sec11 {
    position: relative;
    width: 100%;
    padding: 6rem var(--spacing-container, 1.5rem);
    background: #0a0a0a;
}

.ug-sec11-header {
    text-align: center;
    margin-bottom: 3rem;
}

.ug-sec11-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.ug-sec11-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.ug-sec11-top-card {
    background: #f6f6f8;
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2.5rem;
    border: 1px solid #1e1e1e;
}

.ug-sec11-top-image {
    width: auto;
    height: 200px;
    /* border-radius: 16px; */
    overflow: hidden;
    /* background: #1a1a1a; */
    flex-shrink: 0;
}

.ug-sec11-top-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    max-width: 400px;
}

.ug-sec11-top-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.ug-sec11-top-content .ug-sec11-top-title {
    font-size: var(--font-xl);
    font-weight: 600;
    color: #000000;
    margin-bottom: 0;
}

.ug-sec11-top-content .ug-sec11-top-desc {
    font-size: var(--font-sm);
    color: #999;
    line-height: 1.6;
}

.ug-sec11-top-icons {
    display: flex;
    justify-content: flex-end;
}

.ug-sec11-icon-circle {
    position: relative;
    width: 280px;
    height: 280px;
}

.ug-sec11-icon-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 180px;
    height: 180px;
    border: 2px solid #e6e6e6ab;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.ug-sec11-icon-circle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 220px;
    height: 220px;
    border: 2px solid #f4f4f49e;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.ug-sec11-icon-center {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 64px;
    height: 64px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.ug-sec11-icon-center img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.ug-sec11-icon-item {
    position: absolute;
    width: 48px;
    height: 48px;
    background: #fafafa;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease;
    z-index: 1;
}

.ug-sec11-icon-item:hover {
    transform: scale(1.1);
}

.ug-sec11-icon-item img {
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.ug-sec11-icon-item.icon-top {
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.ug-sec11-icon-item.icon-top-right {
    top: 50px;
    right: 20px;
}

.ug-sec11-icon-item.icon-right {
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
}

.ug-sec11-icon-item.icon-bottom-right {
    bottom: 50px;
    right: 20px;
}

.ug-sec11-icon-item.icon-bottom {
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.ug-sec11-icon-item.icon-bottom-left {
    bottom: 50px;
    left: 20px;
}

.ug-sec11-icon-item.icon-left {
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
}

.ug-sec11-icon-item.icon-top-left {
    top: 50px;
    left: 20px;
}

.ug-sec11-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.ug-sec11-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 0;
    border: 1px solid #1e1e1e;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.ug-sec11-card-image {
    width: 100%;
    height: 260px;
    overflow: hidden;
    background: #1a1a1a;
}

.ug-sec11-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: #f5f5f7;
}

.ug-sec11-card-content {
    padding: 1.5rem;
}
@media screen and (max-width: 768px) {
   .ug-sec11-card-content {
    padding: 0rem;
} 
    .ug-sec11-title {
        font-size: clamp(2.5rem, 3vw, 2.25rem);
    }
    .ug-sec11-top-content .ug-sec11-top-desc {
    font-size: var(--font-lg);

}
.ug-sec11-top-image img {
    max-width: 600px;
}
    .ug-sec11-icon-item img {
        width: 22px;
        height: 22px;
    }
}
.ug-sec11-card-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: #000000;
    margin-bottom: 0.75rem;
}

.ug-sec11-card-desc {
    font-size: var(--font-sm);
    color: #999;
    line-height: 1.6;
}

/* ug-sec11 响应式 */
@media screen and (max-width: 1024px) {
    .ug-sec11-top-card {
        flex-direction: column;
        text-align: center;
    }

    .ug-sec11-top-content {
        align-items: center;
    }

    .ug-sec11-top-icons {
        justify-content: center;
    }

    .ug-sec11-icon-circle {
        width: 220px;
        height: 220px;
    }

    .ug-sec11-icon-circle::before {
        width: 140px;
        height: 140px;
    }

    .ug-sec11-icon-circle::after {
        width: 170px;
        height: 170px;
    }

    .ug-sec11-icon-center {
        width: 52px;
        height: 52px;
    }

    .ug-sec11-icon-center img {
        width: 28px;
        height: 28px;
    }

    .ug-sec11-icon-item {
        width: 42px;
        height: 42px;
    }

    .ug-sec11-icon-item img {
        width: 22px;
        height: 22px;
    }

    .ug-sec11-icon-item.icon-top {
        top: 15px;
    }

    .ug-sec11-icon-item.icon-top-right {
        top: 40px;
        right: 15px;
    }

    .ug-sec11-icon-item.icon-right {
        right: 8px;
    }

    .ug-sec11-icon-item.icon-bottom-right {
        bottom: 40px;
        right: 15px;
    }

    .ug-sec11-icon-item.icon-bottom {
        bottom: 15px;
    }

    .ug-sec11-icon-item.icon-bottom-left {
        bottom: 40px;
        left: 15px;
    }

    .ug-sec11-icon-item.icon-left {
        left: 8px;
    }

    .ug-sec11-icon-item.icon-top-left {
        top: 40px;
        left: 15px;
    }
}

@media screen and (max-width: 768px) {
    .container-sec.ug-sec11 {
        padding: 4rem var(--spacing-container, 1.5rem);
    }

    .ug-sec11-top-card {
        padding: 2rem;
        gap: 0.5rem;
    }

    .ug-sec11-top-title {
        font-size: var(--font-xl);
    }

    .ug-sec11-cards {
        grid-template-columns: 1fr;
    }

    .ug-sec11-card {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .ug-sec11-card-title {
        font-size: var(--font-xl);
    }
     .ug-sec11-icon-item img {
        width: 52px;
        height: 52px;
    }   
     .ug-sec11-icon-item {
        width: 62px;
        height: 62px;
    }
        .ug-sec11-icon-circle {
        width: 320px;
        height: 320px;
    }
        .ug-sec11-icon-center img {
        width: 62px;
        height: 62px;
    }
        .ug-sec11-icon-center {
        width: 72px;
        height: 72px;
    }
    
    .ug-sec11-icon-circle::before {
        width: 280px;
        height: 280px;
    }
    .ug-sec11-card-desc {
    font-size: var(--font-lg);
    color: #999;
    line-height: 1.6;
}
.ug-sec11-card-image {
    height: 400px;
}
}

@media screen and (max-width: 480px) {
    .container-sec.ug-sec11 {
        padding: 3rem var(--spacing-container, 1rem);
    }

    .ug-sec11-card {
        padding: 1.25rem;
    }
}

/* ============================================
   ug-sec12 车机互联
   ============================================ */
.container-sec.ug-sec12 {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 3vh;
}

.ug-sec12-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.ug-sec12-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.ug-sec12-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 2rem var(--spacing-container, 1.5rem);
    max-width: 800px;
}

.ug-sec12-title {
    font-size: clamp(1.8rem, 3vw, 3.2rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.25rem;
    text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.ug-sec12-subtitle {
    font-size: var(--font-lg);
    color: rgba(255,255,255,0.9);
    margin-bottom: 3rem;
    text-shadow: 0 1px 6px rgba(0,0,0,0.3);
    letter-spacing: 0.05em;
}

.ug-sec12-bubbles {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
    max-width: 400px;
    margin: 0 auto;
    margin-left: 4%;
}

.ug-sec12-bubbles .bubble {
    background: rgb(195 207 226);
    color: #333;
    padding: 0.85rem 1.25rem;
    border-radius: 16px 16px 16px 4px;
    font-size: var(--font-sm);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    max-width: 100%;
}

.ug-sec12-bubbles .bubble-1 {
    align-self: flex-start;
    animation: bubbleIn 0.8s ease-out forwards;
}

.ug-sec12-bubbles .bubble-2 {
    align-self: center;
    animation: bubbleIn 0.8s ease-out 0.3s forwards;
    opacity: 0;
}

@keyframes bubbleIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ug-sec12 响应式 */
@media screen and (max-width: 768px) {
    .container-sec.ug-sec12 {
        min-height: 70vh;
    }

    .ug-sec12-content {
        padding: 2rem var(--spacing-container-mobile, 1rem);
    }

    .ug-sec12-title {
        font-size: clamp(1.5rem, 5vw, 2.2rem);
        margin-bottom: 1rem;
    }

    .ug-sec12-subtitle {
        font-size: var(--font-xl);
        margin-bottom: 2rem;
    }

    .ug-sec12-bubbles {
        gap: 0.75rem;
        max-width: 100%;
    }

    .ug-sec12-bubbles .bubble {
        padding: 0.75rem 1rem;
        font-size: var(--font-lg);
    }
}

@media screen and (max-width: 480px) {
    .container-sec.ug-sec12 {
        min-height: 55vh;
    }

    .ug-sec12-title {
        font-size: clamp(1.3rem, 4.5vw, 1.8rem);
    }

    .ug-sec12-subtitle {
        font-size: var(--font-sm);
    }

    .ug-sec12-bubbles {
        max-width: 280px;
    }
}

/* ug-sec12 卡片区域容器 */
.container-sec.ug-sec12-cards-wrap {
    width: 100%;
    background: #0a0a0a;
    padding: 3rem 0;
}

/* ug-sec12 卡片区域 */
.ug-sec12-cards {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-container, 1.5rem);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.ug-sec12-card {
    display: flex;
    background: #2b2b2b;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid #1e1e1e;
}

.ug-sec12-card-img {
    flex: 1;
    min-width: 0;
}

.ug-sec12-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ug-sec12-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 2.5rem;
}

.ug-sec12-card-title {
    font-size: clamp(1.5rem, 2vw, 2rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.ug-sec12-card-desc {
    font-size: var(--font-base);
    color: #999;
    line-height: 1.8;
}

/* 第二个卡片左右交换 */
.ug-sec12-card.card-music {
    flex-direction: row-reverse;
}

/* ug-sec12 底部提示 */
.ug-sec12-tips {
    text-align: center;
    padding: 1rem var(--spacing-container, 1.5rem);
    font-size: var(--font-xs);
    color: #666;
}

/* ug-sec12 卡片响应式 */
@media screen and (max-width: 1024px) {
    .ug-sec12-card-content {
        padding: 2rem;
    }

    .ug-sec12-card-title {
        font-size: clamp(1.3rem, 2.5vw, 1.6rem);
    }

    .ug-sec12-card-desc {
        font-size: var(--font-sm);
    }
}

@media screen and (max-width: 768px) {
    .ug-sec12-cards {
        margin-top: 2.5rem;
        gap: 1.25rem;
        padding: 0 var(--spacing-container-mobile, 1rem);
    }

    .ug-sec12-card {
        flex-direction: column !important;
    }

    .ug-sec12-card-img {
        height: 220px;
    }

    .ug-sec12-card-content {
        padding: 1.75rem;
    }

    .ug-sec12-card-title {
        font-size: var(--font-xl);
    }

    .ug-sec12-tips {
        padding: 2rem var(--spacing-container-mobile, 1rem);
        font-size: var(--font-base);
    }
     .ug-sec12-card-desc {
        font-size: var(--font-lg);
    }   
}

@media screen and (max-width: 480px) {
    .ug-sec12-card-img {
        height: 180px;
    }

    .ug-sec12-card-content {
        padding: 1.25rem;
    }

    .ug-sec12-card-title {
        font-size: var(--font-lg);
        margin-bottom: 0.75rem;
    }

    .ug-sec12-card-desc {
        font-size: var(--font-xs);
    }
}

/* ============================================
   ug-sec13 海外访问
   ============================================ */
.container-sec.ug-sec13 {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background: #000000;
    padding: 5rem var(--spacing-container, 1.5rem);
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.ug-sec13-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    width: 100%;
    text-align: center;
}

.ug-sec13-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 1rem;
}

.ug-sec13-desc {
    font-size: var(--font-lg);
    color: #999;
    margin-bottom: 3.5rem;
    letter-spacing: 0.02em;
}

.ug-sec13-map {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto 4rem;
}

.ug-sec13-map img {
    width: 100%;
    height: auto;
    display: block;
}

.ug-sec13-nodes {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #1e1e1e;
}

.node-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.node-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.node-title {
    font-size: var(--font-lg);
    font-weight: 600;
    color: #fff;
    margin: 0;
}

.node-desc {
    font-size: var(--font-sm);
    color: #ffffff;
    margin: 0;
    line-height: 1.5;
}

.ug-sec13-tips {
    font-size: var(--font-xs);
    color: #555;
    margin: 0;
}

/* ug-sec13 响应式 */
@media screen and (max-width: 768px) {
    .container-sec.ug-sec13 {
        padding: 4rem var(--spacing-container, 1rem);
        min-height: auto;
    }

    .ug-sec13-title {
        font-size: clamp(1.5rem, 5vw, 2.5rem);
    }

    .ug-sec13-desc {
        font-size: var(--font-base);
        margin-bottom: 2.5rem;
    }

    .ug-sec13-map {
        margin-bottom: 3rem;
    }

    .ug-sec13-nodes {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
        max-width: 600px;
        padding-bottom: 2rem;
    }

    .node-item img {
        width: 50px;
        height: 50px;
    }

    .node-title {
        font-size: var(--font-xl);
    }

    .node-desc {
        font-size: var(--font-md);
    }
    .ug-sec13-tips {
    font-size: var(--font-base);
}
}

@media screen and (max-width: 480px) {
    .container-sec.ug-sec13 {
        padding: 3rem var(--spacing-container, 0.875rem);
    }

    .ug-sec13-title {
        font-size: clamp(1.3rem, 6vw, 2rem);
    }

    .ug-sec13-nodes {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .node-item img {
        width: 45px;
        height: 45px;
    }

    .node-title {
        font-size: var(--font-sm);
    }

    .node-desc {
        font-size: var(--font-xxs);
    }

    .ug-sec13-tips {
        font-size: var(--font-xxs);
    }
}