/* UE 虚幻引擎数字孪生定制开发 专属样式 */

/* Hero 区域 */
.dt-hero {
    padding: 110px 0 90px;
    background: linear-gradient(120deg, #062653 0%, #063a7b 55%, #0b5ca8 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.dt-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
    background-size: 42px 42px;
}

.dt-hero::after {
    content: "";
    position: absolute;
    right: -140px;
    top: -120px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle at 36% 35%, #5dd5ff 0%, #176eea 25%, rgba(11, 75, 173, 0.55) 48%, transparent 68%);
    pointer-events: none;
}

.dt-hero .container {
    position: relative;
    z-index: 2;
}

.dt-hero-tag {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    color: #d6ecff;
    font-size: 14px;
    margin-bottom: 28px;
}

.dt-hero-title {
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin: 0 0 22px;
    letter-spacing: 1px;
}

.dt-hero-desc {
    font-size: 20px;
    line-height: 1.8;
    color: #a8d3f5;
    max-width: 720px;
    margin: 0 0 36px;
}

.dt-hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.dt-btn-primary,
.dt-btn-ghost {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.dt-btn-primary {
    background: #1677d2;
    color: #fff;
    box-shadow: 0 8px 20px rgba(22, 135, 232, 0.35);
}

.dt-btn-primary:hover {
    background: #0d65ba;
    color: #fff;
    text-decoration: none;
}

.dt-btn-ghost {
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: #fff;
}

.dt-btn-ghost:hover {
    background: #fff;
    color: #005BAC;
    text-decoration: none;
}

/* 通用区块 */
.dt-section {
    padding: 60px 0;
    background: #fff;
}

.dt-section-gray {
    background: #F7F9FC;
}

.dt-section-title {
    font-size: 28px;
    font-weight: 700;
    color: #161f2b;
    margin: 0 auto 40px;
    padding-bottom: 14px;
    border-bottom: 3px solid #1677d2;
    text-align: center;
    width: fit-content;
    display: block;
}

.dt-section-eyebrow {
    display: block;
    text-align: center;
    color: #1677d2;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    margin-bottom: 14px;
}

.dt-eyebrow-left {
    text-align: left;
}

.dt-title-left {
    font-size: 28px;
    font-weight: 700;
    color: #161f2b;
    margin: 0 0 24px;
    padding-bottom: 14px;
    border-bottom: 3px solid #1677d2;
    width: fit-content;
}

/* 业务概述 */
.dt-overview {
    border-left: 4px solid #1677d2;
    padding: 8px 0 8px 28px;
}

.dt-overview p {
    font-size: 16px;
    line-height: 2;
    color: #5b6575;
    margin: 0 0 16px;
    text-align: justify;
}

.dt-overview p:last-child {
    margin-bottom: 0;
}

/* 业务重要说明 */
.dt-note {
    padding: 20px 0 60px;
    background: #fff;
}

.dt-note-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    border: 1px solid #bcd6f0;
    border-radius: 16px;
    background: #edf6ff;
    padding: 28px 32px;
}

.dt-note-icon {
    font-size: 28px;
    line-height: 1;
    flex-shrink: 0;
}

.dt-note-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #005BAC;
    margin: 0 0 10px;
}

.dt-note-card p {
    font-size: 14px;
    line-height: 1.9;
    color: #3c4a5e;
    margin: 0;
}

/* 技术底座 */
.dt-desc-text {
    font-size: 15px;
    line-height: 2;
    color: #5b6575;
    margin: 0 0 24px;
}

.dt-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dt-feature-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 15px;
    line-height: 1.8;
    color: #374151;
    padding: 8px 0;
}

.dt-check {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 3px;
    border-radius: 50%;
    background: rgba(22, 119, 210, 0.1);
    position: relative;
}

.dt-check::after {
    content: "";
    position: absolute;
    left: 4px;
    top: 5px;
    width: 8px;
    height: 5px;
    border-left: 2px solid #1677d2;
    border-bottom: 2px solid #1677d2;
    transform: rotate(-45deg);
}

/* 引擎能力卡片 */
.dt-engine-card {
    min-height: 420px;
    border-radius: 24px;
    background: linear-gradient(135deg, #043879 0%, #0964b6 55%, #4dcaf6 100%);
    padding: 36px;
    position: relative;
    overflow: hidden;
    color: #fff;
}

.dt-engine-grid-bg {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 42px 42px;
    opacity: 0.5;
    pointer-events: none;
}

.dt-engine-head {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.dt-engine-3d {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.dt-engine-title {
    font-size: 18px;
    font-weight: 600;
    color: #eaf5ff;
    margin: 0;
}

.dt-engine-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}

.dt-engine-tile {
    border-radius: 14px;
    background: rgba(2, 12, 32, 0.35);
    padding: 18px 20px;
}

.dt-engine-tile span {
    display: block;
    font-size: 14px;
    color: #cfe8ff;
    margin-bottom: 8px;
}

.dt-engine-tile b {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

/* 业务落地场景 */
.dt-scene-card {
    height: 100%;
    background: #fff;
    border: 1px solid #e3ecf8;
    border-radius: 16px;
    padding: 30px 28px;
    transition: all 0.3s ease;
}

.dt-scene-card:hover {
    box-shadow: 0 14px 36px rgba(22, 119, 210, 0.14);
    transform: translateY(-4px);
}

.dt-scene-icon {
    font-size: 34px;
    line-height: 1;
    color: #1677d2;
}

.dt-scene-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: #161f2b;
    margin: 18px 0 12px;
}

.dt-scene-card p {
    font-size: 14px;
    line-height: 1.9;
    color: #667085;
    margin: 0;
}

.dt-scene-note {
    margin: 28px 0 0;
    border: 1px solid #bcd6f0;
    background: #edf6ff;
    border-radius: 12px;
    padding: 16px 24px;
    font-size: 14px;
    line-height: 1.8;
    color: #005BAC;
}

/* 全流程交付 */
.dt-process {
    position: relative;
}

.dt-process-line {
    display: none;
}

.dt-step {
    background: #fff;
    height: 100%;
    padding: 4px 8px;
}

.dt-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #005BAC;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.dt-step h3 {
    font-size: 16px;
    font-weight: 700;
    color: #161f2b;
    margin: 18px 0 10px;
}

.dt-step p {
    font-size: 13px;
    line-height: 1.8;
    color: #667085;
    margin: 0;
}

.dt-delivery-note {
    margin: 32px 0 0;
    background: #16233c;
    color: #fff;
    border-radius: 12px;
    padding: 16px 24px;
    text-align: center;
    font-size: 14px;
}

/* 对比表格 */
.dt-compare-sub {
    text-align: center;
    color: #9aa4b2;
    font-size: 14px;
    margin: -24px 0 32px;
}

.dt-table {
    width: 100%;
    min-width: 720px;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    font-size: 14px;
    text-align: left;
    border-collapse: separate;
    border-spacing: 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.dt-table thead th {
    background: #005BAC;
    color: #fff;
    padding: 18px 20px;
    font-weight: 600;
}

.dt-table tbody td {
    padding: 16px 20px;
    color: #5b6575;
    border-bottom: 1px solid #eef2f7;
    vertical-align: middle;
}

.dt-table tbody tr:last-child td {
    border-bottom: none;
}

.dt-table-dim {
    font-weight: 700;
    color: #161f2b !important;
}

.dt-table-yes {
    background: #edf6ff;
}

/* 企业实力 & 项目案例 */
.dt-company-card {
    height: 100%;
    border-radius: 16px;
    background: #062e61;
    color: #fff;
    padding: 40px;
}

.dt-eyebrow-light {
    display: block;
    color: #9fd4f5;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    margin-bottom: 14px;
}

.dt-company-card h3 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 18px;
}

.dt-company-card p {
    font-size: 15px;
    line-height: 2;
    color: #cfe8ff;
    margin: 0 0 12px;
}

.dt-ref-card {
    height: 100%;
    border: 1px solid #dfe7f1;
    border-radius: 16px;
    padding: 40px;
    background: #fff;
}

.dt-ref-card h3 {
    font-size: 26px;
    font-weight: 700;
    color: #161f2b;
    margin: 0 0 18px;
}

.dt-ref-card p {
    font-size: 15px;
    line-height: 2;
    color: #5b6575;
    margin: 0 0 12px;
}

.dt-ref-note {
    font-size: 13px !important;
    color: #9aa4b2 !important;
}

/* CTA */
.dt-cta {
    padding: 70px 0;
    background: linear-gradient(100deg, #005BAC, #0b77cf);
    color: #fff;
}

.dt-cta-content {
    text-align: center;
}

.dt-cta-content h3 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 14px;
}

.dt-cta-content p {
    font-size: 16px;
    color: #cfe8ff;
    margin: 0 0 32px;
}

.dt-cta-btns {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.dt-cta-btn-solid,
.dt-cta-btn-line {
    display: inline-block;
    padding: 15px 44px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
}

.dt-cta-btn-solid {
    background: #fff;
    color: #005BAC;
}

.dt-cta-btn-solid:hover {
    background: #eef4fb;
    color: #005BAC;
    text-decoration: none;
}

.dt-cta-btn-line {
    border: 1px solid #fff;
    color: #fff;
}

.dt-cta-btn-line:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    text-decoration: none;
}

/* 响应式 */
@media (max-width: 992px) {
    .dt-hero {
        padding: 70px 0 60px;
    }

    .dt-hero-title {
        font-size: 38px;
    }

    .dt-hero::after {
        width: 480px;
        height: 480px;
        right: -120px;
        top: -80px;
    }
}

@media (max-width: 768px) {
    .dt-section {
        padding: 40px 0;
    }

    .dt-hero {
        padding: 56px 0 46px;
    }

    .dt-hero-title {
        font-size: 28px;
    }

    .dt-hero-desc {
        font-size: 16px;
    }

    .dt-section-title,
    .dt-title-left {
        font-size: 22px;
    }

    .dt-note {
        padding-bottom: 40px;
    }

    .dt-note-card {
        flex-direction: column;
        padding: 22px 20px;
    }

    .dt-engine-card {
        min-height: auto;
        padding: 26px 20px;
    }

    .dt-company-card,
    .dt-ref-card {
        padding: 28px 24px;
    }

    .dt-cta {
        padding: 50px 0;
    }

    .dt-cta-content h3 {
        font-size: 22px;
    }
}

/* 数字孪生赋能千行百业 */
.dt-industry-sub {
    text-align: center;
    color: #5b6b7b;
    font-size: 16px;
    margin: -24px auto 36px;
}

.dt-industry-card {
    background: #fff;
    border: 1px solid #e8edf3;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(22, 71, 152, 0.08);
    cursor: pointer;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.dt-industry-card:hover {
    box-shadow: 0 14px 30px rgba(22, 71, 152, 0.16);
    transform: translateY(-4px);
}

.dt-industry-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: #0a2540;
}

.dt-industry-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.dt-industry-card:hover .dt-industry-thumb img {
    transform: scale(1.04);
}

.dt-industry-play {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(22, 119, 210, 0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.25s ease, transform 0.25s ease;
}

.dt-industry-play::after {
    content: "";
    width: 0;
    height: 0;
    border-left: 20px solid #fff;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}

.dt-industry-card:hover .dt-industry-play {
    background: #0d5cae;
    transform: translate(-50%, -50%) scale(1.08);
}

.dt-industry-body {
    padding: 18px 20px 22px;
}

.dt-industry-name {
    font-size: 18px;
    font-weight: 700;
    color: #161f2b;
    margin: 0 0 8px;
}

.dt-industry-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #5b6b7b;
    margin: 0;
}

/* 全屏视频播放 */
.dt-video-player {
    position: fixed;
    inset: 0;
    z-index: 1080;
    background: #000;
    display: none;
    align-items: center;
    justify-content: center;
}

.dt-video-player-open {
    display: flex;
}

.dt-video-player-video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}

/* 横幅采用 news 页面风格（背景图 + 居中白字 + 科技网格） */
.page-banner.news-banner {
    background-image: url('../static/digitaltwin/UE 虛幻引擎数字孪生定制开发项目.png');
    height: 600px;
    padding: 0;
    display: flex;
    align-items: center;
}

/* 移动端横幅固定高度 */
@media (max-width: 768px) {
    .page-banner.news-banner {
        height: 240px;
        padding: 0;
    }

    .page-banner.news-banner.dt-banner .banner-subtitle {
        display: none;
    }
}

.dt-banner-tag {
    display: inline-block;
    padding: 8px 18px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    color: #d6ecff;
    font-size: 14px;
    margin-bottom: 16px;
}

.banner-btns {
    justify-content: flex-start;
}