/* =============================================================================
 * best-crd-vs-mrd-iw.css — Chrome Remote Desktop vs. Microsoft Remote Desktop
 * 任务：D2C-20261019-003 / 设计帧 oUzdI5tgrzJLpvclZTr1v3 → 1845:15904
 *
 * 结构基准：av-best 族（best/crd-alternative.html 骨架 + best/psc-vs-sp-iw.html
 *   A 型 Figma 还原先例）。组件沿用族真实类名：.banner / .container2 /
 *   .compare-table.table-cnt + table.table / .status.status-yes|no /
 *   .scenario-section / .faq / .insight / aside.side-nav / .sticky-download。
 * 交互：全部复用 /resource/js/tv-alternative.js + custom-scrollbar.js + 站点 main.js。
 *
 * 设计数值来源 = 003-av-nodes.json（Frame 1845:15904 子树），非目测：
 *   内容宽 1280 / 版块 padding 120 / 标题组 46+16+28 与表格间距 80 /
 *   表卡 #FFF r16 + shadow(0 5 20 rgba(39,51,86,.10)) / Insight 24 间距 r16。
 * rem 标定：≥768 1rem=10px；≤767 站点 main.css 为 55.5%，文末 page-fixes 用实像素锁定。
 * ========================================================================== */

main {
    display: block;
}

/* ===== 共用：版块外壳 ===== */
.quick,
.compatibility,
.features,
.setup,
.pricing,
.security,
.performance,
.scenario-section,
.faq,
.wh,
.alt {
    padding: 12rem 0;
    text-align: center;
}

.quick { background: #F8F9FA; }
.features,
.pricing { background: #FFFFFF; }
.setup,
.security { background: #F8F9FA; }
.performance { background: #FFFFFF; }
.scenario-section { background: #F8F9FA; }
.faq { background: #FFFFFF; }
.wh {
    background: #FFFFFF url("/resource/images/best-crd-vs-mrd-iw/choose-bg.webp") no-repeat top center / 100% auto;
}
.alt { background: #F8F9FA; }

/* Compatibility：深底 + AV 水印底图（节点 1845:15993，资产 1920×842） */
.compatibility {
    background: #091121 url("/resource/images/best-crd-vs-mrd-iw/compat-bg.webp") no-repeat top center / 100% auto;
}

/* 标题组：H2 40/700 lh46 + 导语 18/400 lh28，组与表格间距 80 */
.section-head {
    margin: 0 auto 8rem;
}

.section-head h2 {
    margin: 0;
    color: #000000;
    font-size: 4rem;
    font-weight: 700;
    line-height: 4.6rem;
}

.section-head p {
    max-width: 128rem;
    margin: 1.6rem auto 0;
    color: #000000;
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 2.8rem;
}

.compatibility .section-head h2,
.compatibility .section-head p {
    color: #FFFFFF;
}

/* ===== Hero（1845:15906，1920×690） ===== */
.banner {
    padding: 12rem 0;
    background: #091121 url("/resource/images/best-crd-vs-mrd-iw/hero-bg.webp") no-repeat center / cover;
    color: #FFFFFF;
    text-align: center;
}

.banner .banner-content {
    max-width: 128rem;
    margin: 0 auto;
}

/* 徽章 826×62 r8，2px 渐变描边 #2C53FF→#7CCFFF→#2C53FF，文字 32/700 lh40 */
.banner .banner-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    height: 6.2rem;
    margin: 0 auto;
    padding: 0 4rem;
    box-sizing: border-box;
    border: .2rem solid transparent;
    border-radius: .8rem;
    background:
        linear-gradient(#091121, #091121) padding-box,
        linear-gradient(90deg, #2C53FF 0%, #7CCFFF 50%, #2C53FF 100%) border-box;
    color: #FFFFFF;
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 4rem;
}

/* H1 60/700 lh78，徽章下 8 */
.banner .banner-title {
    margin: .8rem 0 0;
    color: #FFFFFF;
    font-size: 6rem;
    font-weight: 700;
    line-height: 7.8rem;
}

/* 要点 20/400 lh26，行距 20，组上下 60，16px 勾图标 */
.banner .banner-list {
    width: fit-content;
    margin: 6rem auto;
    padding: 0;
    list-style: none;
    text-align: left;
}

.banner .banner-list li {
    position: relative;
    padding-left: 2.4rem;
    color: #FFFFFF;
    font-size: 2rem;
    font-weight: 400;
    line-height: 2.6rem;
}

.banner .banner-list li:not(:last-child) {
    margin-bottom: 2rem;
}

.banner .banner-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .5rem;
    width: 1.6rem;
    height: 1.6rem;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Ccircle cx='9' cy='9' r='8' fill='%230256FF'/%3E%3Cpath d='M6 9.9L8.9 12.2L12.4 7.6' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / contain;
}

/* ===== 按钮（族 .btn-download 形态：346×64 r32 #2258F6 + 光晕） ===== */
.btn-download {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .8rem;
    height: 6.4rem;
    padding: 0 5.6rem;
    border-radius: 3.2rem;
    background: #2258F6;
    box-shadow: 0 1rem 2rem rgba(34, 88, 246, .4);
    color: #FFFFFF;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.4rem;
    text-align: center;
    transition: background-color .15s ease;
}

.btn-download svg {
    display: block;
    flex: none;
}

.btn-download:hover,
.btn-download:focus {
    background: #1748db;
    color: #FFFFFF;
}

.btn-download:active {
    background: #1E46D6;
}

.banner .btn-download {
    min-width: 34.6rem;
}

/* ===== 对比表外壳（11 张：.table-x > .compare-table.table-cnt > table.table） ===== */
.table-x {
    position: relative;
    max-width: 128rem;
    margin: 0 auto;
}

/* 1281–1319 档内容容器恰为 1280、表格会贴视口边缘（1279 以下已有内边距）：
   该区间收 40px 保持与相邻档一致的侧距（UX P2-8） */
@media (min-width: 1280px) and (max-width: 1319px) {
    /* 1280–1319 内容容器恰为 1280 会贴视口边；作用于 container2 才能让
       标题组 / Insight / FAQ / 决策卡 / alt 卡与表格一起内缩（UX P2-8 实测）。 */
    main > div > .container2 {
        max-width: calc(100% - 4rem);
    }
}

/* 横向滚动条（族契约：custom-scrollbar.js 驱动 track/thumb，仅溢出时显示） */
.table-x .custom-scrollbar-track {
    position: relative;
    width: 100%;
    height: 1.2rem;
    margin-top: 1.2rem;
    padding: .2rem;
    box-sizing: border-box;
    border-radius: 99.9rem;
    background: #FFFFFF;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
    cursor: pointer;
}

.table-x .custom-scrollbar-thumb {
    height: .8rem;
    width: 6rem;
    border-radius: 99.9rem;
    background: #97A4BD;
    transition: background .18s ease;
    cursor: pointer;
}

.table-x .custom-scrollbar-thumb:hover {
    background: rgba(2, 86, 255, .6);
}

.compare-table.table-cnt {
    position: relative;
    overflow-x: auto;
    overflow-y: hidden;
    /* 表头圆角 24（设计表头首末格 borderRadius 24px 24px 0 0）；
       border-collapse:collapse 下 th 自身圆角不生效，由外壳裁剪实现 */
    border-radius: 2.4rem 2.4rem 1.4rem 1.4rem;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
    -webkit-overflow-scrolling: touch;
}

.compare-table.table-cnt::-webkit-scrollbar {
    display: none;
}

/* 滚动容器键盘焦点（tabindex 在 .table-cnt 上；窄档靠方向键横滚） */
.compare-table.table-cnt:focus-visible {
    outline: 2px solid #2258F6;
    outline-offset: 2px;
}

table.table {
    width: 100%;
    min-width: 96rem;
    table-layout: fixed;
    /* separate 才能让单元格自身的 24 圆角生效（collapse 下 th 圆角被忽略） */
    border-collapse: separate;
    border-spacing: 0;

}

table.table th,
table.table td {
    box-sizing: border-box;
    padding: 1.4rem 1.6rem;
    color: #000000;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 2rem;
    text-align: center;
    vertical-align: middle;
    /* 1px 竖分隔（设计 strokeAlign=INSIDE） */
    box-shadow: inset -.1rem 0 0 #F1F1F1;
}

table.table th:last-child,
table.table td:last-child {
    box-shadow: none;
}

table.table thead th {
    height: 7.6rem;
    padding: 0 2rem;
    color: #000000;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.8rem;
    /* 表头每格上圆角（设计 1845:15935/16008/16073…：borderRadius 24px 24px 0 0，
       含品牌 logo 格，格与格之间由 1px 分隔留出圆角缺口） */

}
.quick table.table thead th{
    border-radius: 2.4rem 2.4rem 0 0;
}
.compatibility table.table thead th{
    border-radius: 2.4rem 2.4rem 0 0;
}

table.table thead th:first-child {
    text-align: left;
}

table.table tbody th {
    text-align: left;
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 2.8rem;
}

/* 品牌 logo 格（设计实例：CRD 320×44 / RDP 240×44） */
table.table .brand-cell {
    padding: 0 1.8rem 0 1.8rem;
}

table.table.quick-table .brand-cell,
table.table.compatibility-table .brand-cell,
table.table.security-table .brand-cell {
    padding: 0 2.4rem;
}

table.table .brand-logo {
    display: inline-block;
    width: auto;
    height: 4.4rem;
    vertical-align: middle;
}

/* 行交替底色（默认：奇 #F9FAFF / 偶 #FFF；quick 相反） */
table.table tbody tr:nth-child(odd) > th,
table.table tbody tr:nth-child(odd) > td {
    background: #F9FAFF;
}

table.table tbody tr:nth-child(even) > th,
table.table tbody tr:nth-child(even) > td {
    background: #FFFFFF;
}

/* ---- quick（1845:15929；表头 100 / 行 74；首格 #F9FAFF，品牌格渐变底图） ---- */
/* 卡壳：r16 + shadow；内层滚动容器只包表格，Summary 尾盒在卡内不随横滚 */
.quick-card {
    overflow: hidden;
    border-radius: 2.4rem 2.4rem 1.6rem 1.6rem;

      box-shadow: 0 10px 26px rgba(21, 45, 86, 0.1);
}

.quick-card .compare-table.table-cnt {
    border-radius: 0;
    box-shadow: none;
}

table.quick-table thead th {
    height: 10rem;
}

.quick-table thead th:first-child {
    background: #F9FAFF;
    border-top-left-radius: 2.4rem;
}

.quick-table thead th:last-child {
    border-top-right-radius: 2.4rem;
}

.quick-table thead th.brand-cell {
    background: url("/resource/images/best-crd-vs-mrd-iw/quick-head-bg.webp") no-repeat left top / 78rem 13rem;
}

.quick-table tbody tr {
    height: 7.4rem;
}

/* 行底色覆盖需带 table 前缀：与通用 `table.table tbody tr:nth-child(...) > th` 同 class
   数时元素计数更高者胜（(0,2,4) > (0,2,3)），否则变体规则会静默失效 */
table.quick-table tbody tr:nth-child(odd) > th,
table.quick-table tbody tr:nth-child(odd) > td {
    background: #FFFFFF;
}

table.quick-table tbody tr:nth-child(even) > th,
table.quick-table tbody tr:nth-child(even) > td {
    background: #F9FAFF;
}

/* 设计逐表内边距（1845:15935/16008/16345 = 24；16073/16229/16287/16403 = 20/16；
   其余列 18/16）。必须带 table.table 前缀压过通用 1.4rem 1.6rem（(0,1,2)）。 */
table.table.quick-table th,
table.table.quick-table td,
table.table.compatibility-table th,
table.table.compatibility-table td,
table.table.security-table th,
table.table.security-table td {
    padding-left: 2.4rem;
    padding-right: 2.4rem;
}

table.table.feature-table th:first-child,
table.table.feature-table td:first-child,
table.table.setup-table th:first-child,
table.table.setup-table td:first-child,
table.table.pricing-table th:first-child,
table.table.pricing-table td:first-child,
table.table.performance-table th:first-child,
table.table.performance-table td:first-child,
table.table.scenario-table th:first-child,
table.table.scenario-table td:first-child {
    padding-left: 2rem;
    padding-right: 1.6rem;
}

table.table.feature-table th:not(:first-child),
table.table.feature-table td:not(:first-child),
table.table.setup-table th:not(:first-child),
table.table.setup-table td:not(:first-child),
table.table.pricing-table th:not(:first-child),
table.table.pricing-table td:not(:first-child),
table.table.performance-table th:not(:first-child),
table.table.performance-table td:not(:first-child),
table.table.scenario-table th:not(:first-child),
table.table.scenario-table td:not(:first-child) {
    padding-left: 1.8rem;
    padding-right: 1.6rem;
}

/* 首列横向滚动吸附（全档；未滚动时与静态流位置一致，不改变设计版式） */
table.table thead th:first-child,
table.table tbody th:first-child {
    position: sticky;
    left: 0;
    z-index: 2;
}

/* sticky 首格必须不透明，否则横滚内容从格下透出。
   底色逐表取设计节点，顺序有意义：通用白底在前，专项规则在后覆盖。 */


table.quick-table thead th:first-child {
    background: #F9FAFF;               /* 1845:15935 */
}

table.compatibility-table thead th:first-child {
    background: #233149;               /* 1845:16008 */
}

table.security-table thead th:first-child {
    background: #091121;               /* 1845:16344 */
}

table.scenario-table thead th:first-child {
    background: #E5EDFF;               /* 1845:16454 */
}

/* ---- compatibility（1845:15992；表头 90 #233149 / 行 80） ---- */
.compatibility .compare-table.table-cnt {
    border-radius: 2.4rem 2.4rem 1.6rem 1.6rem;
}

table.compatibility-table thead th {
    height: 9rem;
    background: #233149;
    color: #FFFFFF;
    font-size: 1.8rem;
    box-shadow: inset -.1rem 0 0 #151C2B;
}

.compatibility-table thead th:last-child {
    box-shadow: none;
}

.compatibility-table tbody tr {
    height: 8rem;
}

/* 行内上下 padding 12：设计 2 行文本 56 + 24 = 80 行高（14 会撑到 84） */
.compatibility-table tbody th,
.compatibility-table tbody td {
    padding-top: 1.2rem;
    padding-bottom: 1.2rem;
}

/* ---- features（1845:16066；表头 76 / 行 70） ---- */
table.feature-table thead th {
    height: 7.6rem;
}

.feature-table tbody tr {
    height: 7rem;
}

/* ---- setup / pricing / performance（表头 76 / 行 92） ---- */
table.setup-table thead th,
table.pricing-table thead th,
table.performance-table thead th {
    height: 7.6rem;
}

.setup-table tbody tr,
.pricing-table tbody tr,
.performance-table tbody tr {
    height: 9.2rem;
}

/* 设计帧 performance 标题组 98 高（H2 46 + 24 + 导语 28，与其余版块 16 的组内距不同） */
#performance .section-head p {
    margin-top: 2.4rem;
}

/* ---- security（1845:16338；深色表：#091121 头 / #233149 / #15223A 行，行 80） ---- */
.security .compare-table.table-cnt {
    background: #091121;
}

table.security-table thead th {
    height: 8rem;
    background: #091121;
    color: #FFFFFF;
    box-shadow: inset -.1rem 0 0 #364560;
}

.security-table thead th:last-child {
    box-shadow: none;
}

.security-table tbody tr {
    height: 8rem;
}

.security-table tbody th,
.security-table tbody td {
    color: #FFFFFF;
    box-shadow: inset -.1rem 0 0 #364560;
}

table.security-table tbody tr:nth-child(odd) > th,
table.security-table tbody tr:nth-child(odd) > td {
    background: #233149;
}

table.security-table tbody tr:nth-child(even) > th,
table.security-table tbody tr:nth-child(even) > td {
    background: #15223A;
}

.security-table tbody th:last-child,
.security-table tbody td:last-child {
    box-shadow: none;
}

/* ---- 场景星级表（4 张；193×? 设计：表头 80 #E5EDFF/#DEE9FF，行 100） ---- */
table.scenario-table thead th {
    height: 8rem;
    background: #E5EDFF;
    color: #000000;
    font-size: 1.8rem;
    box-shadow: inset -.1rem 0 0 #FFFFFF;
}

.scenario-table thead th:nth-child(2) {
    background: #DEE9FF;
}

.scenario-table thead th:last-child {
    box-shadow: none;
}

.scenario-table tbody tr {
    height: 10rem;
}

.scenario-table tbody th {
    padding: 0 2rem;
}

/* 分类按钮 + hover/focus 提示（第 4 列 Hover 内容，docx 逐字） */
.sc-cat {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    border: 0;
    background: none;
    color: inherit;
    font: inherit;
    line-height: inherit;
    text-align: left;
    cursor: default;
}

.sc-cat:focus-visible {
    outline: 2px solid #2258F6;
    outline-offset: 2px;
}

.sc-cat .sc-tip {
    display: none;
    position: absolute;
    z-index: 5;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    width: 27.2rem;
    margin-left: 1.2rem;
    padding: 1.6rem;
    border-radius: .8rem;
    background: #FFFFFF;
    box-shadow: 0 .4rem 1rem rgba(0, 0, 0, .2);
    color: #000000;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 2rem;
    text-align: left;
    cursor: default;
}

.sc-cat:hover,
.sc-cat:focus-visible {
    color: #2258F6;
}

.sc-cat:hover .sc-tip,
.sc-cat:focus-visible .sc-tip,
.sc-cat[data-tip-open="true"] .sc-tip {
    display: block;
}

/* 星级格：数字 14/700 + 5 星 18px gap4 */
.sc-score {
    display: inline-flex;
    align-items: center;
    gap: 1.2rem;
}

.sc-num {
    color: #000000;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 2rem;
}

.sc-stars {
    display: inline-flex;
    gap: .4rem;
}

.sc-stars i {
    width: 1.8rem;
    height: 1.8rem;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='0' y2='1'%3E%3Cstop offset='0' stop-color='%232258F6'/%3E%3Cstop offset='1' stop-color='%234C7AFF'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath fill='url(%23g)' d='M9 .6l2.42 5.53 6 .55-4.53 4 1.33 5.9L9 13.44l-5.22 3.14 1.33-5.9-4.53-4 6-.55z'/%3E%3C/svg%3E") no-repeat center / contain;
}

.sc-stars i.is-empty {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath fill='%23A4AAB9' d='M9 .6l2.42 5.53 6 .55-4.53 4 1.33 5.9L9 13.44l-5.22 3.14 1.33-5.9-4.53-4 6-.55z'/%3E%3C/svg%3E");
}

/* ===== 勾/叉（族契约 .status.status-yes|no；页级自足 data URI） ===== */
.status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.8rem;
    height: 1.8rem;
    vertical-align: middle;
}

.status::before {
    content: "";
    display: block;
    width: 1.8rem;
    height: 1.8rem;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.status.status-yes::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Ccircle cx='9' cy='9' r='9' fill='%230256FF'/%3E%3Cpath d='M6 9.9L8.9 12.2L12.4 7.6' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.status.status-no::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Ccircle cx='9' cy='9' r='9' fill='%23BCBCBC'/%3E%3Cpath d='M6.3 6.3L11.7 11.7M11.7 6.3L6.3 11.7' fill='none' stroke='%23fff' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E");
}

/* ===== Insight 框 ===== */
.insight {
    max-width: 128rem;
    margin: 2.4rem auto 0;
    padding: 2.4rem;
    border-radius: 1.6rem;
    text-align: left;
}

.insight-title {
    margin: 0 0 .8rem;
    color: #000000;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.8rem;
}

.insight p {
    margin: 0;
    color: #333333;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 2.4rem;
}

/* quick：Summary 为卡内尾盒（设计 1280×108，r[0,0,16,16]） */
.quick-card .insight {
    margin: 0;
    max-width: none;
    border-radius: 0 0 1.6rem 1.6rem;
    background: #FFFFFF;
}

.features .insight,
.pricing .insight,
.performance .insight {
    background: #F8F9FA;
}

.setup .insight,
.scenario-section .insight {
    background: #FFFFFF;
}

.compatibility .insight,
.security .insight {
    background: #FFFFFF;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
}

.compatibility .insight {
    margin-top: 2rem;
}

/* ===== FAQ（1845:17027） ===== */
.faq .section-head h2 {
    text-align: center;
}

.faq .faq-mn {
    max-width: 128rem;
    margin: 8rem auto 0;
    padding: 0;
    border-radius: 2.4rem;
    background: #FFFFFF;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
}

.faq .box {
    padding: 0;
    background: #FFFFFF;
    text-align: left;
}

.faq .box:not(:last-child) {
    box-shadow: inset 0 -1px 0 #E6E8E9;
}

/* 关闭行：整行可点且维持设计 110 高（40+30+40） */
.faq .box:not(.active) .title {
    padding-bottom: 4rem;
}

.faq .box .title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    box-sizing: border-box;
    padding: 4rem 4rem 0;
    border: 0;
    background: none;
    text-align: left;
    cursor: pointer;
}

.faq .box .faq-q-text {
    flex: 1;
    min-width: 0;
    padding-right: 2.4rem;
    color: #000000;
    font-size: 2rem;
    font-weight: 700;
    line-height: 3rem;
}

.faq .box.active .faq-q-text {
    color: #2258F6;
}

.faq .box .tt-ic {
    position: relative;
    display: inline-block;
    flex-shrink: 0;
    width: 2.4rem;
    height: 2.4rem;
}

.faq .box .tt-ic::before,
.faq .box .tt-ic::after {
    content: "";
    position: absolute;
    left: .2rem;
    top: 1.1rem;
    width: 2rem;
    height: .2rem;
    border-radius: .2rem;
    background: #2258F6;
    transition: transform .15s, opacity .15s;
}

.faq .box .tt-ic::after {
    transform: rotate(90deg);
}

.faq .box.active .tt-ic::after {
    opacity: 0;
    transform: rotate(-45deg);
}

.faq .box .faq-answer {
    margin: 2.4rem 0 0;
    padding: 0 4rem 4rem;
    color: #000000;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 2.4rem;
}

/* ===== How to Choose（1845:17104，白底 + 浅蓝渐变背景 1920×810） ===== */
.wh .section-head {
    margin: 0 auto 8rem;
}

.wh-cards {
    display: flex;
    gap: 2.4rem;
    max-width: 128rem;
    margin: 0 auto;
    text-align: left;
}

.wh-card {
    display: flex;
    flex: 1;
    min-width: 0;
    align-items: center;
    gap: 2.4rem;
    padding: 2.4rem;
    border-radius: 2.4rem;
    background: #FFFFFF;
    box-shadow: 0 .8rem 2rem rgba(34, 88, 246, .1);
}

.wh-tile {
    flex: none;
    width: 18rem;
    height: 18rem;
    border-radius: 1.6rem;
}

.wh-info h3 {
    margin: 0 0 .8rem;
    color: #000000;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.8rem;
}

.wh-info ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.wh-info li {
    position: relative;
    padding-left: 1.4rem;
    color: #000000;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 2rem;
}

.wh-info li + li {
    margin-top: .8rem;
}

.wh-info li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .8rem;
    width: .4rem;
    height: .4rem;
    border-radius: 50%;
    background: #000000;
}

/* ===== Best Alternative（1845:17173） ===== */
.alt-card {
    display: flex;
    align-items: center;
    gap: 6rem;
    max-width: 128rem;
    margin: 0 auto;
    padding: 6rem;
    border-radius: 4rem;
    background: #FFFFFF;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
    text-align: left;
}

.alt-img {
    flex: none;
    display: block;
    width: 52rem;
    height: 36rem;
    border-radius: 1.2rem;
    object-fit: cover;
}

.alt-info {
    flex: 1;
    min-width: 0;
}

.alt-info h3 {
    margin: 0;
    color: #000000;
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 4rem;
}

.alt-info ul {
    margin: 2.4rem 0 0;
    padding: 0;
    list-style: none;
}

.alt-info li {
    position: relative;
    padding-left: 1.4rem;
    color: #000000;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 2.4rem;
}

.alt-info li + li {
    margin-top: .6rem;
}

.alt-info li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1rem;
    width: .4rem;
    height: .4rem;
    border-radius: 50%;
    background: #000000;
}

/* alt 区按钮：设计 1845:17472 width 280 / FILL 语义（结构已改族 data-agent 组，选择器随之更新） */
.alt-info .btn-download,
.alt-info .alt-btns .btn.btn-blue {
    width: 28rem;
    padding: 0 5.6rem;
}

/* ===== CTA（1845:17473，1920×640 照片底图） ===== */
.access {
    padding: 12.4rem 0;
    background: #091121 url("/resource/images/best-crd-vs-mrd-iw/cta-bg.webp") no-repeat center / cover;
    color: #FFFFFF;
    text-align: center;
}

.access h2 {
    margin: 0;
    color: #FFFFFF;
    font-size: 5rem;
    font-weight: 700;
    line-height: 6.4rem;
}

.access .access-desc {
    max-width: 128rem;
    margin: 1.6rem auto 0;
    color: #FFFFFF;
    font-size: 2rem;
    font-weight: 400;
    line-height: 3.2rem;
}

.access-list {
    width: fit-content;
    margin: 2.8rem auto 0;
    padding: 0;
    list-style: none;
    text-align: left;
}

.access-list li {
    position: relative;
    padding-left: 1.6rem;
    color: #FFFFFF;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 3.2rem;
}

.access-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 1.4rem;
    width: .4rem;
    height: .4rem;
    border-radius: 50%;
    background: #FFFFFF;
}

.access-list a {
    color: #FFFFFF;
    text-decoration: underline;
}

/* 页底下载：按平台切安装包（参考 best/pcaw-alternatives-iw.html 的 .download-button） */
.access .download-button {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1.6rem;
    margin-top: 6rem;
}

.access .download-button .butn-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .8rem;
    height: 6.4rem;
    padding: 0 2.4rem;
    border-radius: 3.2rem;
    background: #2258F6;
    box-shadow: 0 1rem 2rem rgba(34, 88, 246, .4);
    color: #FFFFFF;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.4rem;
    text-decoration: none;
}

.access .download-button .butn-phone .ic-apple,
.access .download-button .butn-phone .ic-android {
    flex: none;
    width: 2.4rem;
    height: 2.4rem;
}

.access .download-button .butn-txt {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    text-align: left;
}

.access .download-button .butn-txt-top {
    font-size: 1.2rem;
    font-weight: 400;
}

.access .download-button .butn-txt-btm {
    font-size: 1.8rem;
    font-weight: 700;
}

.access .download-button .butn-lg .butn-txt-btm {
    font-size: 2.2rem;
}

/* ===== 浮窗导航（1845:17489）＝ 族契约 ===== */
.side-nav[data-side-nav] {
    position: fixed;
    left: 2.2rem;
    top: 10rem;
    z-index: 20;
    display: block;
    width: 24rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-2rem);
    transition: opacity .25s, visibility .25s, transform .25s;
}

.side-nav[data-side-nav].show {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.side-nav .side-nav-inner {
    max-height: calc(100vh - 12rem);
    overflow-y: auto;
    overscroll-behavior: contain;
}

.side-nav .side-nav-inner {
    padding: 3.2rem 2.2rem 1.8rem;
    border: 1px solid #E6E8E9;
    border-radius: 1.6rem;
    background: #FFFFFF;
    box-shadow: 0 .5rem 2rem rgba(39, 51, 86, .1);
}

.side-nav .side-nav-inner strong {
    display: block;
    margin: 0 0 .8rem;
    color: #000000;
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 2.4rem;
    white-space: nowrap;
}

.side-nav .side-nav-inner strong:not(:first-child) {
    margin-top: 2rem;
}

.side-nav .side-nav-inner a {
    display: block;
    color: #000000;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 2rem;
}

.side-nav .side-nav-inner a + a {
    margin-top: .6rem;
}

.side-nav .side-nav-inner a.active {
    color: #2258F6;
    font-weight: 700;
}

.side-nav .side-nav-inner a.side-nav-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    width: 100%;
    height: 4.8rem;
    margin-top: 2.4rem;
    border-radius: 2.4rem;
    background: #2258F6;
    color: #FFFFFF;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 2rem;
    text-align: center;
}

.side-nav .side-nav-inner a.side-nav-download .ic-down {
    display: inline-block;
    width: 1.6rem;
    height: 1.6rem;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23fff' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8 1.9v8.3'/%3E%3Cpath d='M4.7 7.1 8 10.4l3.3-3.3'/%3E%3Cpath d='M2.4 13.7h11.2'/%3E%3C/svg%3E") no-repeat center / contain;
}

@media (max-width: 1800px) {
    .side-nav[data-side-nav] {
        display: none;
    }
}

/* ===== 横幅下载（docx 1.2；族外壳与 anyviewer-vs-ad 同款） ===== */
.sticky-download[data-sticky-download] {
    position: fixed;
    left: 50%;
    bottom: 0;
    z-index: 90;
    width: 100%;
    padding: 1rem 0;
    background-color: #091121;
    background-image: linear-gradient(90deg, #251f95 0%, #1d1f8e 25%, #1f3a83 50%, #081d56 75%, #112f99 100%);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
    opacity: 0;
    visibility: hidden;
    transform: translate(-50%, 130%);
    transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
}

.sticky-download[data-sticky-download].show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0);
}

.sticky-download[data-sticky-download] .container2 {
    display: flex;
    align-items: center;
    gap: 2.4rem;
}

.sticky-download[data-sticky-download] .sticky-download-text {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.sticky-download[data-sticky-download] .sticky-download-text .text-box {
    position: relative;
    height: 2.8rem;
}

.sticky-download[data-sticky-download] .sticky-download-text .text-box strong {
    display: block;
    color: #FFFFFF;
    font-size: 2rem;
    font-weight: 700;
    line-height: 2.8rem;
}

.sticky-download[data-sticky-download] .sticky-download-text span {
    display: block;
    margin-top: .4rem;
    color: #C9D3E7;
    font-size: 1.4rem;
    line-height: 1.45;
}

.sticky-download[data-sticky-download] .sticky-download-btns {
    flex-shrink: 0;
}

.sticky-download[data-sticky-download] .sticky-download-btns .btn.btn-blue {
    width: 24rem;
    height: 5.2rem;
    border-radius: 2.8rem;
    background: #0256FF;
    color: #FFFFFF;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 5.2rem;
    box-shadow: 0 12px 22px rgba(2, 86, 255, .32);
}

.sticky-download[data-sticky-download] .sticky-download-btns .btn.btn-blue:hover {
    background: #1748db;
    color: #FFFFFF;
}

.sticky-download[data-sticky-download] .sticky-download-close {
    position: absolute;
    z-index: 3;
    right: 1.4rem;
    top: 1.2rem;
    width: 2.4rem;
    height: 2.4rem;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.sticky-download[data-sticky-download] .sticky-download-close::before,
.sticky-download[data-sticky-download] .sticky-download-close::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 2rem;
    height: .2rem;
    border-radius: .1rem;
    background: #FFFFFF;
}

.sticky-download[data-sticky-download] .sticky-download-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.sticky-download[data-sticky-download] .sticky-download-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

/* ===== 可访问性 ===== */
main a:focus-visible,
main button:focus-visible {
    outline: 2px solid #2258F6;
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

/* 深底版块链接显式覆盖站点全局 a{color:#2258f6} */
.banner a,
.access a {
    color: #FFFFFF;
}

/* ===== 响应式（desktop-first：≤1279 / ≤991 / ≤767） ===== */
@media (max-width: 1279px) {
    .quick,
    .compatibility,
    .features,
    .setup,
    .pricing,
    .security,
    .performance,
    .scenario-section,
    .faq,
    .wh,
    .alt {
        padding: 9rem 0;
    }

    .section-head {
        margin-bottom: 6rem;
    }
}

@media (max-width: 991px) {
    .section-head h2 {
        font-size: 3.2rem;
        line-height: 4rem;
    }

    .section-head p {
        font-size: 1.6rem;
        line-height: 2.6rem;
    }

    .banner .banner-badge {
        height: 5.2rem;
        padding: 0 3rem;
        font-size: 2.4rem;
        line-height: 3.2rem;
    }

    .banner .banner-title {
        margin-top: 4rem;
        font-size: 4rem;
        line-height: 5.2rem;
    }

    .wh-cards {
        flex-direction: column;
    }

    .wh-card {
        max-width: 62.8rem;
        margin: 0 auto;
    }

    .alt-card {
        flex-direction: column;
        align-items: stretch;
        padding: 4rem;
        gap: 3.2rem;
    }

    .alt-img {
        width: 100%;
        height: auto;
    }
}

@media (max-width: 767px) {
    .quick,
    .compatibility,
    .features,
    .setup,
    .pricing,
    .security,
    .performance,
    .scenario-section,
    .faq,
    .wh,
    .alt {
        padding: 4.8rem 0;
    }

    .section-head {
        margin-bottom: 4rem;
    }

    .section-head h2 {
        font-size: 2.6rem;
        line-height: 3.4rem;
    }

    .banner {
        padding: 4.8rem 0;
    }

    .banner .banner-badge {
        height: 4.4rem;
        padding: .8rem 2rem;
        font-size: 1.6rem;
        line-height: 2.4rem;
    }

    .banner .banner-title {
        margin-top: 3.2rem;
        font-size: 3.2rem;
        line-height: 4.2rem;
    }

    .banner .banner-list {
        margin: 4rem auto;
    }

    .banner .banner-list li {
        font-size: 1.6rem;
        line-height: 2.4rem;
    }

    .banner .banner-list li:not(:last-child) {
        margin-bottom: 1.2rem;
    }

    .wh-card {
        flex-direction: column;
    }

    .wh-tile {
        width: 100%;
        height: auto;
        max-width: 18rem;
    }

    .alt-card {
        padding: 2.4rem;
        border-radius: 2.4rem;
    }

    .alt-info h3 {
        font-size: 2.6rem;
        line-height: 3.4rem;
    }

    .access h2 {
        font-size: 2.8rem;
        line-height: 3.8rem;
    }

    .access .access-desc {
        font-size: 1.6rem;
        line-height: 2.6rem;
    }

    .access-list li {
        font-size: 1.4rem;
        line-height: 2.6rem;
    }

    .access-list li::before {
        top: 1.1rem;
    }

    .sticky-download[data-sticky-download] .container2 {
        display: block;
        padding-right: 5.6rem;
    }

    .sticky-download[data-sticky-download] .sticky-download-text .text-box {
        height: auto;
    }

    .sticky-download[data-sticky-download] .sticky-download-text strong {
        font-size: 1.6rem;
        line-height: 2.4rem;
    }

    .sticky-download[data-sticky-download] .sticky-download-text span {
        margin-top: .6rem;
        font-size: 1.2rem;
        line-height: 1.7rem;
    }

    .sticky-download[data-sticky-download] .sticky-download-btns {
        margin-top: 1rem;
    }

    .sticky-download[data-sticky-download] .sticky-download-btns .btn.btn-blue {
        width: 20rem;
        height: 4.4rem;
        font-size: 1.5rem;
        line-height: 4.4rem;
    }

    .sc-cat .sc-tip {
        left: 0;
        top: 100%;
        transform: none;
        width: min(27.2rem, 72vw);
        margin: .8rem 0 0;
    }
}

/* ===== 99 page-fixes：≤767 站点 html 55.5% 缩水 → 实像素下限 ===== */
@media (max-width: 991px) {
    .btn-download {
        min-height: 44px;
    }

    .faq .box .title {
        min-height: 44px;
    }

    .sticky-download[data-sticky-download] .sticky-download-btns .btn.btn-blue {
        min-height: 44px;
    }

    .sticky-download[data-sticky-download] .sticky-download-close {
        min-width: 44px;
        min-height: 44px;
    }

    .side-nav .side-nav-inner a.side-nav-download {
        min-height: 44px;
    }
}

@media (max-width: 767px) {
    .btn-download {
        min-height: 48px;
        font-size: 16px;
    }

    /* 手机横滚表：首列收窄到 150px（设计 28% 在 375 视口占 68% 可视宽，
       遮住数值列），其余列均分；判定与族 AV-003 修复同口径 */
    table.table {
        min-width: 75rem;
    }

    /* 手机档取消首列吸附：150px sticky 首列会遮住右列 59–150px 文字（项目规约） */
    table.table thead th:first-child,
    table.table tbody th:first-child {
        position: static;
        z-index: auto;
    }

    table.table colgroup col {
        width: auto;
    }

    table.table colgroup col:first-child {
        width: 150px !important;
    }

    table.table colgroup col:nth-child(n+2) {
        width: 300px !important;
    }

    /* 末行气泡上翻，避免被滚动容器裁切 */
    .scenario-table tbody tr:last-child .sc-tip {
        top: auto;
        bottom: 100%;
        margin: 0 0 .8rem;
    }

    table.table th,
    table.table td {
        padding: 1.2rem 1.6rem;
        font-size: 14px;
    }

    table.table tbody th {
        font-size: 14px;
        line-height: 22px;
    }

    .faq .box .title {
        padding: 24px 20px 0;
    }

    .faq .box:not(.active) .title {
        padding-bottom: 24px;
    }

    .faq .box .faq-answer {
        margin: 2.4rem 0 0;
        padding: 0 20px 24px;
    }

    .faq .box .title {
        min-height: 48px;
    }

    .faq .box .faq-q-text {
        font-size: 16px;
        line-height: 24px;
    }

    .faq .box .faq-answer {
        font-size: 14px;
        line-height: 22px;
    }

    .sc-cat .sc-tip {
        font-size: 14px;
    }

    .sticky-download[data-sticky-download] .sticky-download-text span {
        font-size: 12px;
    }

    .sticky-download[data-sticky-download] .sticky-download-btns .btn.btn-blue {
        min-height: 44px;
        font-size: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .side-nav[data-side-nav],
    .sticky-download[data-sticky-download],
    .btn-download,
    .faq .box .tt-ic::before,
    .faq .box .tt-ic::after {
        transition: none;
    }
}

/* ≤1366：横幅右侧为关闭按钮预留空间（族基线在 1024–1366 关闭叉被下载按钮覆盖） */
@media (max-width: 1366px) {
    .sticky-download[data-sticky-download] .container2 {
        padding-right: 6.4rem;
    }
}

/* alt 区多平台按钮组（docx: 与 anyviewer-vs-ad.html 同款） */
.alt-btns {
    margin-top: 4rem;
}

.alt-info .alt-btns .btn.btn-blue {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 6.4rem;
    border-radius: 3.2rem;
    background: #2258F6;
    box-shadow: 0 1rem 2rem rgba(34, 88, 246, .4);
    color: #FFFFFF;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.4rem;
    transition: background-color .15s ease;
}

.alt-info .alt-btns .btn.btn-blue:hover {
    background: #1748db;
}

.alt-info .alt-btns .btn.btn-blue .ic-down {
    width: 2.4rem;
    height: 2.4rem;
    margin-right: .8rem;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3.5v13.5'/%3E%3Cpath d='M5.5 10.5 12 17l6.5-6.5'/%3E%3Cpath d='M4 20h16'/%3E%3C/svg%3E") no-repeat center / contain;
}

.alt-info .alt-btns .butn-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .8rem;
    height: 6.4rem;
    padding: 0 2.4rem;
    border-radius: 3.2rem;
    background: #2258F6;
    box-shadow: 0 1rem 2rem rgba(34, 88, 246, .4);
    color: #FFFFFF;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 2.4rem;
    text-decoration: none;
}

.alt-info .alt-btns .butn-txt {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    text-align: left;
}

.alt-info .alt-btns .butn-txt-top {
    font-size: 1.2rem;
    font-weight: 400;
}

.alt-info .alt-btns .butn-txt-btm {
    font-size: 1.8rem;
    font-weight: 700;
}

/* 横幅显示时给页脚留出等高空间，避免遮挡页脚法律链接。
   实测：站点 main.css 的 html,body{height:100%} + box-sizing:border-box 会让
   body 的 padding-bottom 计入 100% 内、不延长文档高度 → 占位必须加在流内最后的
   footer 上（FE P2-B / UX P2-10 双向浏览器注入验证）。 */
body.has-sticky-download footer.new-footer {
    padding-bottom: 12rem;
}

@media (max-width: 991px) {
    body.has-sticky-download footer.new-footer {
        padding-bottom: 210px;
    }
}

/* ≤767：hero 徽章文本折行时高度自适应（固定 44px 两行会溢出 3px） */
@media (max-width: 767px) {
    .banner .banner-badge {
        height: auto;
        min-height: 4.4rem;
        padding: .8rem 2rem;
    }
}

/* alt 区 iOS 大号按钮（参考页 .butn-lg 为 22px 标题） */
.alt-info .alt-btns .butn-lg .butn-txt-btm {
    font-size: 2.2rem;
}

/* 横幅显示时浮窗再收高：短视口下 Download 按钮会落在固定横幅之下（UX P2-11） */
body.has-sticky-download .side-nav .side-nav-inner {
    max-height: calc(100vh - 18rem);
}

/* 场景气泡层级须高于固定横幅（否则点开靠下的行时气泡被横幅压住，UX 边界残留） */
.sc-cat .sc-tip {
    z-index: 95;
}

/* 桌面档末行气泡上翻：设计帧末行距容器底不足气泡高，向下展开会被裁 6px */
@media (min-width: 768px) {
    .scenario-table tbody tr:last-child .sc-tip {
        top: auto;
        bottom: 100%;
        transform: none;
        margin: .8rem 0 0;
    }
}