* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Inter", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", system-ui, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
}

html, body {
    width: 100%;
    overflow-x: hidden;
    background-color: #ffffff;
}

body {
    padding: 30px 15px;
    background: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* 模块标题 — 更现代的分隔感 */
.module-title {
    font-size: 32px;
    font-weight: 700;
    color: #0b1a2e;
    margin-top: 80px;
    margin-bottom: 30px;
    line-height: 1.3;
    scroll-margin-top: 80px;
    position: relative;
    padding-left: 20px;
    letter-spacing: -0.01em;
}
.module-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 5px;
    background: linear-gradient(180deg, #165DFF, #4090ff);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(22,93,255,0.3);
}

/* 导航布局 — 更细腻的视觉 */
.tab-nav {
    display: flex;
    position: relative;
    margin-bottom: 20px;
    width: 100%;
    gap: 4px;
}

.tab-item {
    flex: 1;
    padding: 14px 10px;
    cursor: pointer;
    text-align: center;
    transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border-radius: 14px;
    position: relative;
}

.tab-item:hover {
    background-color: #f8faff;
}

.tab-item-empty {
    flex: 1;
    padding: 16px 12px;
    background: none;
    border: none;
    pointer-events: none;
    visibility: hidden;
}

.tab-icon {
    display: block;
    width: 30px;
    height: 30px;
    margin-bottom: 2px;
    transition: transform 0.2s;
}

.tab-title h3 {
    font-size: 17px;
    color: #3a4a5e;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.2s;
    letter-spacing: -0.01em;
}

.tab-item.active .tab-title h3 {
    color: #165DFF;
    font-weight: 700;
}

.tab-item.active .tab-icon {
    transform: scale(1.05);
}

/* 底部横线 */
.tab-line-wrapper {
    position: relative;
    width: 100%;
    height: 3px;
    background-color: #eef2f6;
    margin-bottom: 32px;
    border-radius: 4px;
    overflow: hidden;
}

.tab-active-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 33.333%;
    height: 100%;
    background: linear-gradient(90deg, #165DFF, #4090ff);
    transition: left 0.35s cubic-bezier(0.2, 0.9, 0.3, 1);
    border-radius: 4px;
    box-shadow: 0 0 12px rgba(22,93,255,0.4);
}

/* 内容区域 */
.tab-content-wrapper {
    padding: 0;
    min-height: 100px;
    margin-bottom: 60px;
}

.tab-content {
    display: none;
    animation: fadeSlide 0.4s cubic-bezier(0.2, 0.9, 0.3, 1) forwards;
}

.tab-content.active {
    display: block;
}

@keyframes fadeSlide {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.content-text {
    font-size: 17px;
    line-height: 1.85;
    color: #2d3b4e;
}

.highlight {
    color: #165DFF;
    font-weight: 700;
    background: linear-gradient(180deg, transparent 60%, rgba(22,93,255,0.12) 60%);
}

/* 第1、2、0模块卡片 — 更柔和的阴影和圆角 */
#content-wrapper-1 .tab-content,
#content-wrapper-2 .tab-content,
#content-wrapper-0 .tab-content {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 8px 28px rgba(0, 20, 50, 0.06), 0 1px 2px rgba(0,0,0,0.02);
    border: 1px solid #edf2f9;
}

/* 核心发现卡片网格 */
.discovery-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 24px;
}

.discovery-card {
    background: #fafcff;
    border-radius: 20px;
    padding: 26px;
    border-left: 5px solid #165DFF;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.discovery-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(22,93,255,0.08), 0 4px 12px rgba(0,0,0,0.03);
    border-left-color: #4090ff;
}

.discovery-card-title {
    font-size: 20px;
    font-weight: 700;
    color: #0b1a2e;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.01em;
}

.discovery-card-title svg {
    width: 28px;
    height: 28px;
    fill: #165DFF;
    flex-shrink: 0;
}

.discovery-card-text {
    font-size: 15.5px;
    line-height: 1.7;
    color: #3f4e62;
}

/* 结构图文 */
.structure-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.structure-text {
    font-size: 17px;
    line-height: 1.85;
    color: #2d3b4e;
}

.structure-img-wrapper {
    width: 100%;
    text-align: center;
}

.structure-img {
    width: 100%;
    max-width: 100%;
    border-radius: 18px;
    box-shadow: 0 12px 32px rgba(0,0,0,0.1);
    object-fit: cover;
}

/* 优势模块 */
.advantage-row {
    display: flex;
    flex-direction: column;
    gap: 24px;
    align-items: stretch;
}

.radar-card,
.performance-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06), 0 1px 2px rgba(0,0,0,0.02);
    border: 1px solid #edf2f9;
}

.radar-title {
    font-size: 22px;
    font-weight: 700;
    color: #165DFF;
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

/* ====== 关键性能亮点解读：居中显示 ====== */
.performance-title {
    font-size: 22px;
    font-weight: 700;
    color: #0b1a2e;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
    text-align: center;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 22px;
    justify-content: center;
    text-align: center;
}

.metric-item {
    background: #f5f9ff;
    border-radius: 20px;
    padding: 20px 12px;
    text-align: center;
    transition: all 0.25s;
    border: 1px solid rgba(22,93,255,0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.metric-item:hover {
    transform: translateY(-3px);
    background: #ecf3ff;
    box-shadow: 0 8px 16px rgba(22,93,255,0.08);
}

.metric-icon {
    width: 30px;
    height: 30px;
    margin-bottom: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.metric-name {
    font-size: 14px;
    font-weight: 600;
    color: #0b1a2e;
    margin-bottom: 6px;
}

.metric-value {
    font-size: 30px;
    font-weight: 800;
    color: #165DFF;
    margin-bottom: 4px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.metric-desc {
    font-size: 12.5px;
    color: #64748b;
}

/* 关键性能解读下方的描述文字居中 */
.desc-text {
    font-size: 15.5px;
    line-height: 1.8;
    color: #2d3b4e;
    background: #f8fafd;
    border-radius: 20px;
    padding: 22px;
    border-left: 4px solid #165DFF;
    text-align: center;
}
/* ====================================== */

.desc-highlight {
    color: #ff7d00;
    font-weight: 700;
}

/* 优势详解三列 —— 优化间距和阴影 */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 24px;
}

@media (min-width: 992px) {
    .detail-grid {
        grid-template-columns: repeat(1, 1fr) !important;
    }
    .detail-card {
        display: flex;
        flex-direction: column;
        gap: 18px;
    }
    .detail-card > div:first-child {
        flex: 0 0 auto;
    }
    .detail-card img {
        width: 100% !important;
        max-height: 380px;
        object-fit: contain;
        margin: 0 auto;
    }
}

.detail-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06), 0 1px 2px rgba(0,0,0,0.02);
    border: 1px solid #edf2f9;
    transition: all 0.3s;
}
.detail-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(22,93,255,0.08), 0 6px 16px rgba(0,0,0,0.03);
}

.detail-icon-title {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}
.detail-icon {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, #165DFF, #4090ff);
    box-shadow: 0 6px 12px rgba(22,93,255,0.25);
}
.detail-title {
    font-size: 21px;
    font-weight: 700;
    color: #0b1a2e;
    margin: 0;
    letter-spacing: -0.01em;
}

.detail-list {
    list-style: none;
}

.detail-list li {
    margin-bottom: 12px;
    font-size: 15.5px;
    line-height: 1.7;
    color: #2d3b4e;
    display: block;
    padding-left: 22px;
    position: relative;
}

.detail-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 8px;
    height: 8px;
    background: #165DFF;
    border-radius: 50%;
    opacity: 0.7;
}

.list-highlight {
    color: #165DFF;
    font-weight: 700;
}

/* ========== 详情内容中的图片：去掉边框阴影效果 ========== */
.detail-card img,
#tab4 img,
#tab5 img,
#tab7 img,
.tab-content .detail-card img,
.tab-content > div img,
.tab-content img {
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
}
/* ======================================================== */

/* 对比表格 — 更清晰的视觉层次 */
.comparison-table-wrapper {
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06);
    overflow: hidden;
    width: 100%;
    border: 1px solid #edf2f9;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: center;
    table-layout: fixed;
}

.comparison-table thead tr {
    background: linear-gradient(180deg, #165DFF, #1e4fd0);
    color: #fff;
    font-weight: 600;
}

.comparison-table th,
.comparison-table td {
    padding: 16px 10px;
    font-size: 14.5px;
    border: 1px solid #eef2f6;
    word-wrap: break-word;
    vertical-align: middle;
    line-height: 1.6;
}

.comparison-table tr:nth-child(even) {
    background-color: #fafcff;
}

.comparison-table tbody tr:hover {
    background-color: #f5f9ff;
}

.comparison-highlight {
    color: #165DFF;
    font-weight: 700;
}

/* 结论模块 */
.conclusion-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 24px;
    margin-bottom: 28px;
}

.conclusion-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06);
    border: 1px solid #edf2f9;
    transition: all 0.25s;
}
.conclusion-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(22,93,255,0.08);
}

.conclusion-card-title {
    font-size: 20px;
    font-weight: 700;
    color: #0b1a2e;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.01em;
}

.conclusion-card-title svg {
    width: 26px;
    height: 26px;
    fill: #165DFF;
}

.conclusion-card-text {
    font-size: 15.5px;
    line-height: 1.7;
    color: #3f4e62;
}

.final-summary {
    background: linear-gradient(135deg, #165DFF, #2b6aff);
    color: #fff;
    border-radius: 24px;
    padding: 28px;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    box-shadow: 0 16px 32px rgba(22,93,255,0.25);
}

.final-summary-icon {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    backdrop-filter: blur(4px);
}

.final-summary-icon svg {
    width: 26px;
    height: 26px;
    fill: #ffffff;
}

.final-summary-text {
    font-size: 16.5px;
    line-height: 1.8;
    flex: 1;
}

.final-summary-text strong {
    font-size: 18px;
}

/* 应用领域 */
.application-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 24px;
}

.application-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06);
    border: 1px solid #edf2f9;
    transition: all 0.25s;
}
.application-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(22,93,255,0.08);
}

.application-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 18px;
}

.application-icon {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    fill: #165DFF;
}

.application-title {
    font-size: 19px;
    font-weight: 700;
    color: #0b1a2e;
    letter-spacing: -0.01em;
}

.application-desc {
    font-size: 15.5px;
    line-height: 1.7;
    color: #3f4e62;
}

.case-card {
    background: #ffffff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(0,20,50,0.06);
    border: 1px solid #edf2f9;
    transition: all 0.25s;
}
.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(22,93,255,0.08);
}

.case-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-card-body {
    padding: 22px;
}

.case-card-title {
    font-size: 19px;
    font-weight: 700;
    color: #165DFF;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.case-card-desc {
    font-size: 15px;
    line-height: 1.7;
    color: #3f4e62;
}

/* 竞争格局 */
.compete-layout {
    display: flex;
    flex-direction: column;
    gap: 32px;
    align-items: center;
}
.compete-left {
    width: 100%;
}
.compete-left img {
    width: 100%;
    border-radius: 24px;
    display: block;
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
}
.compete-right {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

@media (min-width: 768px) {
    .compete-layout {
        flex-direction: row;
        align-items: flex-start;
    }
    .compete-left {
        width: 45%;
    }
    .compete-right {
        width: 55%;
    }
}

/* 页脚 — 更现代的风格 */
.footer-module {
    width: 100%;
    max-width: 1200px;
    margin: 90px auto 0;
    padding: 60px 0;
    /* 修复：使用相对 CSS 文件的路径，@templateDirectory 在外部 CSS 中不会被 Razor 解析 */
    background-image: url(../images-lep/footer-bg.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    text-align: center;
    position: relative;
    border-radius: 24px;
    box-sizing: border-box;
    overflow: hidden;
}

.footer-module::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.6), rgba(0,0,0,0.75));
    z-index: 1;
    border-radius: 24px;
}

.footer-inner {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-slogan {
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 10px;
}

.footer-slogan2 {
    font-size: 18px;
    margin-bottom: 28px;
    opacity: 0.92;
}

.footer-line {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    margin: 0 auto 28px;
    border-radius: 1px;
}

.footer-statement {
    font-size: 15px;
    margin-bottom: 14px;
    line-height: 1.75;
    opacity: 0.9;
}

.footer-beian {
    font-size: 14px;
    opacity: 0.8;
}
.footer-beian a {
    color: #fff;
    text-decoration: none;
}

@media (max-width: 768px) {
    .footer-module {
        padding: 40px 16px;
        margin: 70px auto 0;
    }
    .footer-slogan {
        font-size: 20px;
    }
    .footer-slogan2 {
        font-size: 16px;
    }
}

/* 响应式优化 */
@media (min-width: 576px) {
    body {
        padding: 40px 20px;
    }
    .module-title {
        font-size: 36px;
    }
    .detail-grid,
    .application-grid,
    .discovery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .conclusion-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .comparison-table th, .comparison-table td {
        padding: 18px 10px;
        font-size: 15.5px;
    }
}

@media (min-width: 992px) {
    .module-title {
        font-size: 44px;
        margin-bottom: 40px;
    }
    .tab-title h3 {
        font-size: 19px;
    }
    .tab-icon {
        width: 34px;
        height: 34px;
    }
    .structure-container {
        flex-direction: row;
    }
    .advantage-row {
        flex-direction: row;
        gap: 24px;
        align-items: stretch;
    }
    .advantage-row > .radar-card {
        flex: 0 0 42%;
        min-width: 360px;
    }
    .advantage-row > .performance-card {
        flex: 1;
        min-width: 0;
    }

    .detail-grid,
    .application-grid,
    .conclusion-grid,
    .discovery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .comparison-table th, .comparison-table td {
        padding: 20px 12px;
        font-size: 16px;
    }
    .content-text {
        font-size: 17.5px;
    }
}

/* 战略建议卡片 */
.strategy-card {
    background: #f5f9ff;
    border-radius: 20px;
    padding: 26px;
    border-left: 5px solid #165DFF;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: all 0.25s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.strategy-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(22,93,255,0.08);
    background: #ecf3ff;
}
.strategy-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
}
.strategy-icon {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
}
.strategy-title {
    font-size: 20px;
    font-weight: 700;
    color: #0b1a2e;
    letter-spacing: -0.01em;
}
.strategy-text {
    font-size: 15.5px;
    line-height: 1.7;
    color: #3f4e62;
}

/* 市场规模模块 */
#tab12 .detail-card {
    grid-template-columns: 1fr !important;
}
@media (min-width: 768px) {
    #tab12 .detail-card {
        grid-template-columns: 1fr 1fr !important;
    }
}

#tab14 > div > div {
    grid-template-columns: 1fr !important;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 36px;
    right: 24px;
    width: 52px;
    height: 52px;
    background: #165DFF;
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: 0 12px 24px rgba(22, 93, 255, 0.35);
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    border: none;
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: #0E4BD9;
    transform: translateY(-5px);
    box-shadow: 0 16px 32px rgba(22, 93, 255, 0.4);
}
@media (max-width: 768px) {
    .back-to-top {
        width: 48px;
        height: 48px;
        bottom: 30px;
        right: 20px;
        border-radius: 14px;
    }
}

/* 确保没有多余阴影覆盖 */
img {
    max-width: 100%;
    height: auto;
}

/* 顶部固定导航 */
.top-fixed-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 56px;
    background-color: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 2px 16px rgba(0,0,0,0.04);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

.nav-container {
    width: 100%;
    max-width: 1200px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    box-sizing: border-box;
}

.nav-item {
    flex: none;
    text-align: center;
    font-size: 15px;
    font-weight: 500;
    color: #1e293b;
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 10px;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.nav-item:hover {
    background-color: #f0f7ff;
    color: #165DFF;
}

@media (max-width: 768px) {
    .top-fixed-nav {
        height: 50px;
    }
    .nav-container {
        justify-content: flex-start;
        overflow-x: auto;
        -ms-overflow-style: none;
        scrollbar-width: none;
        gap: 2px;
    }
    .nav-container::-webkit-scrollbar {
        display: none;
    }
    .nav-item {
        font-size: 13px;
        padding: 6px 8px;
    }
}

/* 语言切换按钮 */
.lang-switch-wrap {
    width: 100%;
    max-width: 1200px;
    margin: 40px auto 10px;
    padding: 0 20px;
    text-align: center;
    box-sizing: border-box;
}

.lang-switch-btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 40px;
    background: #165DFF;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(22,93,255,0.25);
    letter-spacing: 0.3px;
}
.lang-switch-btn:hover {
    background: #0E4BD9;
    box-shadow: 0 8px 20px rgba(22,93,255,0.35);
    transform: translateY(-2px);
}

/* 封面模块 */
.top-cover-module {
    width: 100%;
    max-width: 1200px;
    margin: 80px auto 36px;
    padding: 0 24px;
    height: 380px;
    /* 修复：使用相对 CSS 文件的路径，@templateDirectory 在外部 CSS 中不会被 Razor 解析 */
    background: url(../images-lep/cover-bg.jpg) no-repeat center center;
    background-size: cover;
    border-radius: 24px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}
.top-cover-module::before {
    content: '';
    position: absolute;
    left:0; top:0; width:100%; height:100%;
    background: rgba(0,0,0,0.3);
    z-index: 1;
}

.cover-text-wrap {
    text-align: center;
    color: #fff;
    text-shadow: 0 4px 16px rgba(0,0,0,0.5);
    max-width: 100%;
    position: relative;
    z-index: 2;
}

.text-line1 {
    font-size: 44px;
    font-weight: 700;
    margin: 0 0 16px;
    letter-spacing: 2px;
}
.text-line2 {
    font-size: 26px;
    font-weight: 500;
    margin: 0 0 20px;
    letter-spacing: 1px;
    opacity: 0.98;
}
.text-line3 {
    font-size: 17px;
    font-weight: 400;
    margin: 0;
    opacity: 0.95;
}

@media (max-width: 768px) {
    .top-cover-module {
        height: 260px;
        width: 100%;
        margin: 65px auto 28px;
        padding: 0 20px;
        border-radius: 20px;
    }
    .text-line1 { font-size: 28px; margin-bottom: 14px; }
    .text-line2 { font-size: 20px; margin-bottom: 16px; }
    .text-line3 { font-size: 15px; }
}

/* 去掉全局的 box-shadow 覆盖 */
* {
    box-shadow: none;
}
/* 但保留组件的阴影 */
.top-fixed-nav, .top-cover-module, .detail-card, .discovery-card, .radar-card,
.performance-card, .comparison-table-wrapper, .conclusion-card, .final-summary,
.application-card, .case-card, .strategy-card, .back-to-top, .lang-switch-btn,
.metric-item, .tab-item:hover, .tab-line-wrapper, .detail-icon {
    /* 通过具体样式重新启用 */
}
.top-fixed-nav { box-shadow: 0 2px 16px rgba(0,0,0,0.04); }
.top-cover-module { box-shadow: 0 20px 40px rgba(0,0,0,0.12); }
.detail-card { box-shadow: 0 8px 28px rgba(0,20,50,0.06), 0 1px 2px rgba(0,0,0,0.02); }
.discovery-card { box-shadow: 0 2px 8px rgba(0,0,0,0.02); }
.radar-card, .performance-card { box-shadow: 0 8px 28px rgba(0,20,50,0.06), 0 1px 2px rgba(0,0,0,0.02); }
.comparison-table-wrapper { box-shadow: 0 8px 28px rgba(0,20,50,0.06); }
.conclusion-card { box-shadow: 0 8px 28px rgba(0,20,50,0.06); }
.final-summary { box-shadow: 0 16px 32px rgba(22,93,255,0.25); }
.application-card { box-shadow: 0 8px 28px rgba(0,20,50,0.06); }
.case-card { box-shadow: 0 8px 28px rgba(0,20,50,0.06); }
.back-to-top { box-shadow: 0 12px 24px rgba(22, 93, 255, 0.35); }
.lang-switch-btn { box-shadow: 0 4px 12px rgba(22,93,255,0.25); }
.metric-item:hover { box-shadow: 0 8px 16px rgba(22,93,255,0.08); }
.detail-icon { box-shadow: 0 6px 12px rgba(22,93,255,0.25); }
.strategy-card:hover { box-shadow: 0 16px 32px rgba(22,93,255,0.08); }
.tab-item:hover { background-color: #f8faff; }
.tab-line-wrapper { box-shadow: none; }
.footer-module { box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

.tab-item.active .tab-title h3 { font-weight: 700; }