/* 下载中心新版样式 */
.download-center-new {
    padding: 32px 0 64px;
    background-color: #f5f7fa;
}

.download-center-new .dc-nav {
    width: 1214px;
    max-width: 94%;
    min-height: 70px;
    margin: 0 auto 28px;
    background-color: #ffffff;
    border: 1px solid #c8d8ef;
    border-radius: 6px;
    box-shadow: 0 2px 12px rgba(12, 55, 114, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 14px 24px;
    gap: 12px;
}

.download-center-new .dc-nav a {
    text-align: center;
    padding: 12px 6px;
    text-decoration: none;
    color: #333333;
    font-size: 17px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    cursor: pointer;
    white-space: nowrap;
}

.download-center-new .dc-nav a.active {
    color: #1663FF;
    font-weight: 600;
}

.download-center-new .dc-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 8%;
    right: 8%;
    height: 3px;
    background-color: #1663FF;
    border-radius: 2px;
}

.download-center-new .download-content {
    max-width: 1200px;
    margin: 0 auto;
}

.download-center-new .download-nav-item {
    display: none;
}

.download-center-new .download-nav-item.active {
    display: block;
}

/* ===== 产品详情页（设计图 1:1） ===== */
.dc-product-page {
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
}

.dc-product {
    max-width: 920px;
    margin: 0 auto;
    padding: 56px 40px 48px;
    text-align: center;
}

.dc-product-title {
    margin: 0 0 20px;
    font-size: 32px;
    font-weight: 600;
    color: #1a3a6b;
    line-height: 1.35;
}

.dc-product-meta {
    margin: 0 0 28px;
    font-size: 14px;
    color: #86909c;
    line-height: 1.6;
}

.dc-product-meta span + span::before {
    content: '|';
    margin: 0 14px;
    color: #c9cdd4;
}

.dc-product-intro {
    margin: 0 auto 36px;
    max-width: 820px;
    font-size: 15px;
    color: #4e5969;
    line-height: 1.85;
    text-align: center;
}

.dc-product-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.dc-btn-win,
.dc-btn-auth {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 220px;
    height: 52px;
    padding: 0 36px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
}

.dc-btn-win {
    background: #3370ff;
    color: #ffffff;
}

.dc-btn-win:hover {
    background: #2860e0;
    box-shadow: 0 6px 16px rgba(51, 112, 255, 0.35);
}

.dc-btn-auth {
    background: #3370ff;
    color: #ffffff;
}

.dc-btn-auth:hover {
    background: #2860e0;
    box-shadow: 0 6px 16px rgba(51, 112, 255, 0.35);
}

.dc-win-icon,
.dc-auth-icon {
    flex-shrink: 0;
}

.dc-product-links {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: 32px;
    font-size: 14px;
}

.dc-product-links a {
    color: #86909c;
    text-decoration: none;
    transition: color 0.2s;
}

.dc-product-links a:hover {
    color: #3370ff;
}

.dc-link-divider {
    margin: 0 14px;
    color: #c9cdd4;
}

.dc-back-link {
    display: inline-block;
    font-size: 14px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
}

.dc-back-link:hover {
    opacity: 0.85;
}
/* 配套服务 */
.dc-services {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px 48px;
}

.dc-services-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
    padding-bottom: 16px;
    margin-bottom: 28px;
    border-bottom: 1px solid #e5e6eb;
}

.dc-services-header h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
    color: #1d2129;
}

.dc-services-header span {
    font-size: 14px;
    color: #86909c;
    white-space: nowrap;
}

.dc-services-grid {
    display: grid;
    gap: 24px;
}

.dc-services-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.dc-services-grid--2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 820px;
    margin: 0 auto;
}

.dc-service-card {
    background: #ffffff;
    border: 1px solid #e5e6eb;
    border-radius: 8px;
    padding: 28px 28px 24px;
    display: flex;
    flex-direction: column;
    min-height: 220px;
    transition: box-shadow 0.25s ease;
}

.dc-service-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.dc-service-icon {
    width: 40px;
    height: 40px;
    margin-bottom: 16px;
    color: #3370ff;
}

.dc-service-title {
    margin: 0 0 12px;
    font-size: 18px;
    font-weight: 600;
    color: #1d2129;
    line-height: 1.4;
}

.dc-service-desc {
    margin: 0 0 20px;
    flex: 1;
    font-size: 14px;
    color: #86909c;
    line-height: 1.85;
    text-align: left;
}

.dc-service-link {
    align-self: flex-start;
    font-size: 14px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
}

.dc-service-link:hover {
    opacity: 0.85;
}

.dc-page-slogan {
    margin: 40px 0 0;
    text-align: center;
    font-size: 14px;
    color: #c9cdd4;
    letter-spacing: 0.5px;
}

/* 专属服务弹窗 */
.dc-service-modal {
    padding: 0 80px;
    box-sizing: border-box;
}

.dc-service-modal .dc-service-content {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    padding: 0;
    border-radius: 16px;
    background: transparent;
    overflow: visible;
    animation: fadeIn 0.3s ease;
}

.dc-service-modal .dc-service-close {
    position: absolute;
    top: -16px;
    right: -16px;
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    background: #fff;
    border-radius: 50%;
    color: #666;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

.dc-service-modal .dc-service-close:hover {
    color: #333;
}

.dc-service-modal .dc-service-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.dc-service-modal.is-open {
    display: flex !important;
}

.dc-service-header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px 8px;
    background: #ffffff;
    border-radius: 16px 16px 0 0;
    border-bottom: 1px solid #f1f5f9;
}

.dc-service-title {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
}

.dc-service-body {
    background: #ffffff;
    border-radius: 0 0 16px 16px;
    padding: 12px 12px 16px;
    text-align: center;
}

.dc-service-tip {
    margin: 12px 0 0;
    font-size: 15px;
    font-weight: 600;
    color: #1E6BEF;
    letter-spacing: 0.3px;
}

/* 响应式 */








/* ===== 安装配置手册页 ===== */
.install-manual-page {
    padding: 40px 24px 64px;
    background: #f5f7fa;
    min-height: calc(100vh - 200px);
}

.install-manual-wrap {
    max-width: 960px;
    margin: 0 auto;
}

.install-manual-header {
    text-align: center;
    margin-bottom: 36px;
}

.install-manual-title {
    margin: 0 0 16px;
    font-size: 32px;
    font-weight: 600;
    color: #1a3a6b;
    line-height: 1.35;
}

.install-manual-subtitle {
    margin: 0 auto;
    max-width: 720px;
    font-size: 15px;
    color: #86909c;
    line-height: 1.75;
}

.manual-section {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 28px 32px 24px;
    margin-bottom: 20px;
}

.manual-section-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.manual-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #3370ff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.manual-icon span {
    display: block;
    width: 14px;
    height: 2px;
    background: #ffffff;
    border-radius: 1px;
}

.manual-section-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #1d2129;
    line-height: 1.4;
}

.manual-list,
.manual-steps {
    margin: 0;
    padding-left: 24px;
    font-size: 15px;
    color: #4e5969;
    line-height: 1.85;
}

.manual-list li,
.manual-steps li {
    margin-bottom: 10px;
}

.manual-list li:last-child,
.manual-steps li:last-child {
    margin-bottom: 0;
}

.manual-list--blue li::marker {
    color: #3370ff;
}

.manual-list--orange li::marker {
    color: #ff7d00;
}

.manual-list strong {
    color: #1d2129;
    font-weight: 600;
}

.manual-paragraph {
    margin: 0 0 14px;
    font-size: 15px;
    color: #4e5969;
    line-height: 1.85;
}

.manual-section code {
    padding: 2px 8px;
    background: #f2f3f5;
    border-radius: 4px;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 14px;
    color: #3370ff;
}

.install-manual-back {
    display: block;
    margin-top: 32px;
    text-align: center;
    font-size: 14px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
}

.install-manual-back:hover {
    opacity: 0.85;
}



/* ===== 下载中心子视图（手册 / FAQ / 版本更新） ===== */
.dc-sub-views {
    display: none;
}

.dc-sub-views.is-visible {
    display: block;
}

.dc-tab-panels.is-hidden {
    display: none;
}

.dc-sub-view {
    display: none;
}

.dc-sub-view.is-active {
    display: block;
}

.dc-sub-view-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 8px 0 48px;
}

.dc-sub-header {
    text-align: center;
    margin-bottom: 32px;
}

.dc-sub-title {
    margin: 0 0 14px;
    font-size: 32px;
    font-weight: 600;
    color: #1a3a6b;
    line-height: 1.35;
}

.dc-sub-subtitle {
    margin: 0 auto;
    max-width: 820px;
    font-size: 15px;
    color: #86909c;
    line-height: 1.75;
}

.dc-sub-back {
    display: block;
    margin-top: 36px;
    text-align: center;
    font-size: 14px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
}

.dc-sub-back:hover {
    opacity: 0.85;
}

.dc-link-view.is-active {
    color: #3370ff;
    font-weight: 500;
}

/* FAQ 手风琴 */
.faq-panel {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 8px 0 4px;
}

.faq-category {
    padding: 24px 32px 8px;
}

.faq-category + .faq-category {
    border-top: 1px solid #f0f1f3;
}

.faq-category-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.faq-category-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #3370ff;
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    line-height: 28px;
    text-align: center;
}

.faq-category-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #1d2129;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #f7f8fa;
    border: 1px solid #eef0f3;
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 16px 18px;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}

.faq-q-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #3370ff;
    color: #ffffff;
    font-size: 13px;
    font-weight: 600;
    line-height: 22px;
    text-align: center;
}

.faq-q-text {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
    color: #1d2129;
    line-height: 1.5;
}

.faq-chevron {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-right: 2px solid #86909c;
    border-bottom: 2px solid #86909c;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
    margin-right: 4px;
}

.faq-item.is-open .faq-chevron {
    transform: rotate(-135deg);
    margin-top: 4px;
}

.faq-answer {
    display: none;
    padding: 0 18px 16px 52px;
    font-size: 14px;
    color: #86909c;
    line-height: 1.85;
}

.faq-item.is-open .faq-answer {
    display: block;
}

.faq-answer code {
    padding: 2px 6px;
    background: #eef0f3;
    border-radius: 4px;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 13px;
    color: #3370ff;
}

/* 版本更新包表格 */
.update-table-wrap {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    overflow: hidden;
}

.update-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    table-layout: fixed;
}

.update-table col.col-ver { width: 18%; }
.update-table col.col-date { width: 14%; }
.update-table col.col-base { width: 18%; }
.update-table col.col-size { width: 12%; }
.update-table col.col-action { width: 38%; }

.update-table thead {
    background: #eef3ff;
}

.update-table th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    color: #1a3a6b;
    white-space: nowrap;
}

.update-table td {
    padding: 16px;
    color: #4e5969;
    border-top: 1px solid #f0f1f3;
    vertical-align: middle;
}

.update-ver {
    color: #1d2129;
    font-weight: 500;
}

.update-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    background: #3370ff;
    color: #ffffff;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    vertical-align: middle;
}

.update-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.update-btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 108px;
    height: 34px;
    padding: 0 16px;
    border: none;
    border-radius: 6px;
    background: #3370ff;
    color: #ffffff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.update-btn-download:hover {
    background: #2860e0;
}

.update-link-notes {
    font-size: 13px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
    white-space: nowrap;
}

.update-link-notes:hover {
    opacity: 0.85;
}

.update-tip {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 20px;
    padding: 16px 20px;
    background: #f7f8fa;
    border: 1px solid #eef0f3;
    border-radius: 8px;
}

.update-tip-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #3370ff;
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    font-style: italic;
    line-height: 20px;
    text-align: center;
}

.update-tip p {
    margin: 0;
    font-size: 14px;
    color: #86909c;
    line-height: 1.75;
}

/* 版本更新日志 */
.changelog-list-wrap {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.changelog-card {
    position: relative;
    background: #ffffff;
    border: 1px solid #eef0f3;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    padding: 24px 28px 20px;
}

.changelog-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f0f1f3;
}

.changelog-card-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.changelog-ver {
    font-size: 20px;
    font-weight: 600;
    color: #3370ff;
    line-height: 1.2;
}

.changelog-badge {
    display: inline-block;
    padding: 2px 8px;
    background: #3370ff;
    color: #ffffff;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
}

.changelog-date {
    font-size: 14px;
    color: #86909c;
}

.changelog-goto-download {
    flex-shrink: 0;
    font-size: 14px;
    color: #3370ff;
    text-decoration: none;
    transition: opacity 0.2s;
}

.changelog-goto-download:hover {
    opacity: 0.85;
}

.changelog-items {
    margin: 0;
    padding: 0;
    list-style: none;
}

.changelog-item {
    position: relative;
    padding-left: 18px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #4e5969;
    line-height: 1.75;
}

.changelog-item:last-child {
    margin-bottom: 0;
}

.changelog-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #86909c;
}

.changelog-item--add::before { background: #00b42a; }
.changelog-item--opt::before { background: #3370ff; }
.changelog-item--fix::before { background: #f53f3f; }
.changelog-item--sec::before { background: #ff7d00; }
.changelog-item--major::before { background: #722ed1; }
.changelog-item--plain::before { background: #c9cdd4; }

.changelog-tag {
    font-weight: 600;
    color: #1d2129;
    margin-right: 4px;
}

.changelog-item--add .changelog-tag { color: #00b42a; }
.changelog-item--opt .changelog-tag { color: #3370ff; }
.changelog-item--fix .changelog-tag { color: #f53f3f; }
.changelog-item--sec .changelog-tag { color: #ff7d00; }
.changelog-item--major .changelog-tag { color: #722ed1; }

.changelog-top {
    display: block;
    margin-top: 16px;
    text-align: right;
    font-size: 13px;
    color: #c9cdd4;
    text-decoration: none;
    transition: color 0.2s;
}

.changelog-top:hover {
    color: #86909c;
}