/* Liutong business: the shared site family, clear service hierarchy, image-led editorial rows. */
body.lt-business-page{background:#f5f5f3;color:#2b3135}
.lt-biz-main,.lt-biz-main *{box-sizing:border-box}
body .lt-biz-main,body .lt-biz-main :is(h1,h2,h3,p,a,button,strong,small,span,dt,dd,figcaption){font-family:var(--lt-ui-font,"Microsoft YaHei","PingFang SC",Arial,sans-serif)!important}
.lt-biz-container{width:calc(100% - 112px);max-width:1280px;margin:0 auto}
.lt-biz-nav{position:sticky;top:0;z-index:90;background:rgba(245,245,243,.98);border-bottom:1px solid #d5d8d8}
.lt-biz-nav>.lt-biz-container{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:64px}
.lt-biz-nav-label{font-size:15px;font-weight:600;color:#30373b;white-space:nowrap}
.lt-biz-nav>.lt-biz-container>div{display:flex;gap:30px;overflow-x:auto;scrollbar-width:thin}
.lt-biz-nav [data-biz-nav]{display:block;flex:none;padding:22px 0 18px;border-bottom:3px solid transparent;color:#626b70;font-size:14px;line-height:1.5;text-decoration:none;white-space:nowrap;font-weight:500}
.lt-biz-nav [data-biz-nav]:hover,.lt-biz-nav [data-biz-nav][aria-current]{color:#252e33;border-color:#424d54}
.lt-biz-intro{padding-top:58px;padding-bottom:50px;text-align:left}
.lt-biz-eyebrow{font-size:11px;line-height:1.6;font-weight:500;letter-spacing:1.4px;color:#737c80;margin:0 0 20px}
.lt-biz-intro-row{display:grid;grid-template-columns:1fr 1.12fr;align-items:start;gap:60px}
.lt-biz-intro h1{font-size:44px;line-height:1.3;font-weight:600;letter-spacing:1px;color:#262e33;margin:0}
.lt-biz-intro-row p{font-size:17px;line-height:1.9;color:#535e65;margin:0}
.lt-biz-intro-row>div>p:first-child{font-size:23px;font-weight:500;color:#303b42;margin-bottom:9px}
.lt-biz-sections{padding-bottom:32px}
.lt-biz-category{padding:36px 0 64px;border-top:1px solid #bac1c4;scroll-margin-top:88px}
.lt-biz-category-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:30px}
.lt-biz-category-head>div{display:flex;align-items:center;gap:18px}
.lt-biz-number{font-size:13px;color:#78848c;font-variant-numeric:tabular-nums}
.lt-biz-category-head h2{font-size:30px;line-height:1.5;font-weight:600;color:#2c353b;margin:0;letter-spacing:.3px}
.lt-biz-category-en{font-size:10px;line-height:1.6;letter-spacing:1.5px;color:#7c858a}
.lt-biz-category-layout{display:grid;grid-template-columns:minmax(0,1.28fr) minmax(0,1fr);align-items:start;gap:44px}
.lt-biz-feature-photo,.lt-biz-detail-photo{display:block;margin:0;min-width:0}
.lt-biz-feature-photo picture{display:block;aspect-ratio:16/11;background:#1d2225;overflow:hidden}
.lt-biz-feature-photo img{display:block;width:100%;height:100%;object-fit:cover}
.lt-biz-feature-photo.is-portrait img{object-fit:contain}
.lt-biz-feature-photo figcaption,.lt-biz-detail-photo figcaption{display:flex;justify-content:space-between;gap:20px;margin-top:13px;font-size:11px;line-height:1.6;color:#737e85}
.lt-biz-feature-photo figcaption>span:last-child{letter-spacing:1.4px;font-size:9px}
.lt-biz-category-intro{font-size:16px;line-height:1.9;color:#4f5d65;margin:0 0 20px;text-align:left}
.lt-biz-options{border-top:1px solid #ccd1d3}
.lt-biz-options .lt-biz-option{appearance:none;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;width:100%;padding:15px 0;margin:0;border:0;border-bottom:1px solid #d4d8da;background:transparent;text-align:left;cursor:pointer;color:#3c484f;border-radius:0;transition:color .2s}
.lt-biz-option strong{display:block;font-size:18px;font-weight:600;line-height:1.6;color:inherit}
.lt-biz-option small{display:block;font-size:13px;font-weight:400;line-height:1.8;color:#6b767d;margin-top:5px}
.lt-biz-option-arrow{font-size:21px;line-height:1.6;color:#879299;flex:none}
.lt-biz-option:hover,.lt-biz-option[aria-pressed="true"]{color:#19252c}
.lt-biz-option[aria-pressed="true"]{border-bottom-color:#626f77}
.lt-biz-option[aria-pressed="true"] .lt-biz-option-arrow,.lt-biz-option:hover .lt-biz-option-arrow{color:#263a46}
.lt-biz-link{display:inline-flex;align-items:center;justify-content:space-between;gap:38px;min-height:44px;margin-top:22px;border-bottom:1px solid #808c93;color:#35444e!important;font-size:14px;font-weight:600;line-height:1.6;text-decoration:none}
.lt-biz-link>span{font-size:21px}
.lt-biz-link:hover{color:#121f27!important;border-color:#202f38}
.lt-biz-back{display:inline-block;color:#65727a;font-size:13px;line-height:1.7;margin-bottom:30px}
.lt-biz-service-nav{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;padding-top:22px;border-top:1px solid #d4d8d9}
.lt-biz-service-nav a{display:flex;align-items:center;gap:18px;color:#4b5962;font-size:14px;line-height:1.6;min-height:40px}
.lt-biz-service-nav a:hover{color:#15252e}
.lt-biz-service-nav span{color:#879299}
.lt-biz-wide-photo{width:calc(100% - 64px);max-width:1512px;margin:0 auto;background:#161b1e}
.lt-biz-wide-photo picture{display:block;aspect-ratio:2.45;overflow:hidden}
.lt-biz-wide-photo img{display:block;width:100%;height:100%;object-fit:cover}
.lt-biz-detail-list{padding-top:35px;padding-bottom:36px}
.lt-biz-detail{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.3fr);align-items:center;gap:68px;padding:64px 0;border-bottom:1px solid #cbd1d4;scroll-margin-top:84px}
.lt-biz-detail:nth-child(even){grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr)}
.lt-biz-detail:nth-child(even) .lt-biz-detail-copy{order:2}
.lt-biz-detail-copy h2{font-size:30px;font-weight:600;line-height:1.5;color:#29373f;margin:0 0 18px}
.lt-biz-description{font-size:16px;line-height:1.95;color:#4d5c65;margin:0}
.lt-biz-detail-copy dl{margin:24px 0 0}
.lt-biz-detail-copy dl>div{padding:14px 0;border-top:1px solid #d1d7d9}
.lt-biz-detail-copy dt{font-size:12px;font-weight:600;color:#74818a;line-height:1.6;margin-bottom:7px}
.lt-biz-detail-copy dd{font-size:14px;line-height:1.9;color:#465761;margin:0}
.lt-biz-detail-photo picture{display:block;background:#1c2327}
.lt-biz-detail-photo img{display:block;width:100%;height:auto;max-height:560px;object-fit:contain}
.lt-biz-detail-photo.is-portrait img{max-height:640px}
.lt-biz-end{padding:56px 0 62px;background:#e0e3e4;border-top:1px solid #ccd1d3}
.lt-biz-end>.lt-biz-container{display:flex;align-items:center;justify-content:space-between;gap:40px}
.lt-biz-end h2{font-size:28px;line-height:1.5;font-weight:600;color:#2d3a42;margin:0 0 14px}
.lt-biz-end p:not(.lt-biz-eyebrow){font-size:15px;line-height:1.8;color:#5d6b74;margin:0}
.lt-biz-end-actions{display:flex;align-items:flex-start;flex-direction:column;flex:none}
.lt-biz-cta{display:flex;align-items:center;justify-content:space-between;gap:45px;min-height:48px;padding:12px 20px;background:#3b4851;color:#fff!important;font-size:15px;font-weight:600;text-decoration:none}
.lt-biz-cta:hover{background:#52616b}
.lt-biz-end-phone{font-size:22px;line-height:1.6;font-weight:700;color:#35454f;margin-top:12px}
.lt-biz-end-actions .lt-biz-link{margin-top:7px}
.lt-biz-main :is(a,button):focus-visible{outline:2px solid #758892;outline-offset:5px}
@media(min-width:1101px) and (max-width:1600px){.lt-biz-container{width:calc(100% - 340px)}.lt-biz-category-layout{gap:28px;grid-template-columns:1.1fr 1fr}.lt-biz-detail{gap:38px}.lt-biz-wide-photo{width:calc(100% - 340px)}}
@media(max-width:1100px){.lt-biz-container{width:calc(100% - 72px)}.lt-biz-category-layout{gap:30px}.lt-biz-category-head h2,.lt-biz-detail-copy h2{font-size:27px}.lt-biz-detail{gap:35px}.lt-biz-intro-row{gap:32px}.lt-biz-nav>.lt-biz-container>div{gap:20px}}
@media(max-width:760px){.lt-biz-container{width:calc(100% - 40px)}.lt-biz-nav>.lt-biz-container{display:block;padding-top:10px}.lt-biz-nav-label{font-size:13px}.lt-biz-nav>.lt-biz-container>div{gap:22px}.lt-biz-nav [data-biz-nav]{font-size:12px;padding:12px 0 11px}.lt-biz-intro{padding-top:34px;padding-bottom:32px}.lt-biz-eyebrow{font-size:10px;letter-spacing:1px;margin-bottom:14px}.lt-biz-intro-row{grid-template-columns:1fr;gap:18px}.lt-biz-intro h1{font-size:32px}.lt-biz-intro-row p{font-size:15px;line-height:1.9}.lt-biz-intro-row>div>p:first-child{font-size:20px}.lt-biz-desktop-break{display:none}.lt-biz-category{padding:26px 0 38px;scroll-margin-top:105px}.lt-biz-category-head{margin-bottom:20px;align-items:flex-start}.lt-biz-category-head>div{gap:12px}.lt-biz-category-head h2{font-size:25px}.lt-biz-category-en{display:none}.lt-biz-category-layout{grid-template-columns:1fr;gap:22px}.lt-biz-feature-photo picture{aspect-ratio:16/10}.lt-biz-category-intro{font-size:15px}.lt-biz-option strong{font-size:17px}.lt-biz-option small{font-size:13px}.lt-biz-options .lt-biz-option{padding:15px 0}.lt-biz-back{margin-bottom:22px}.lt-biz-service-nav{gap:8px 20px;margin-top:24px;padding-top:16px}.lt-biz-service-nav a{font-size:13px;gap:10px}.lt-biz-wide-photo{width:100%}.lt-biz-wide-photo picture{aspect-ratio:16/10}.lt-biz-detail-list{padding-top:8px;padding-bottom:24px}.lt-biz-detail,.lt-biz-detail:nth-child(even){grid-template-columns:1fr;gap:24px;padding:32px 0;scroll-margin-top:110px}.lt-biz-detail:nth-child(even) .lt-biz-detail-copy{order:0}.lt-biz-detail-copy h2{font-size:25px;margin-bottom:14px}.lt-biz-description{font-size:15px}.lt-biz-detail-photo img{max-height:none}.lt-biz-detail-photo.is-portrait img{max-height:600px}.lt-biz-end{padding:36px 0 42px}.lt-biz-end>.lt-biz-container{display:block}.lt-biz-end h2{font-size:24px}.lt-biz-end-actions{margin-top:25px}.lt-biz-end-phone{font-size:23px}}
@media(prefers-reduced-motion:no-preference){html:has(.lt-biz-main){scroll-behavior:smooth}}
@media(prefers-reduced-motion:reduce){.lt-biz-option{transition:none}}

@media(min-width:761px){.lt-biz-feature-photo{position:sticky;top:100px}}