.bts-home-intro{padding:25px 0 20px}.bts-kicker{font-size:12px;color:#526879}.bts-home-intro h1{font-size:30px;line-height:1.45;margin:10px 0 12px}.bts-home-intro h1 span{font-size:17px;font-weight:500;margin-left:20px}.bts-home-intro p{font-size:14px;line-height:1.8;color:#5e6c79;max-width:980px}.bts-hub-nav{padding:18px;margin-bottom:28px;background:#fff;border:1px solid #e0e6ed;border-radius:12px}.bts-hub-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:15px}.bts-hub-heading>a{font-size:12px;color:#345d83}.bts-hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.bts-hub-grid>a{display:grid;grid-template-columns:25px 1fr;gap:6px 10px;padding:13px;border-radius:8px;background:#f3f6f9}.bts-hub-grid>a>span{grid-row:1/3;color:#52668a;font-size:13px}.bts-hub-grid strong{font-size:15px;line-height:1.6}.bts-hub-grid small{font-size:12px;color:#627083;line-height:1.6}.bts-more-picks{border-top:1px solid #eee;padding-top:12px}.bts-more-picks summary{cursor:pointer;font-size:13px;color:#624cab;padding:8px 0}.bts-more-picks[open] summary{margin-bottom:8px}.bts-diagram-thumb{object-fit:contain!important;object-position:center!important;background:#f3f6f8}.bts-reading.yl-prose,.bts-reading.cy-prose{padding-top:12px}.bts-toc{border:1px solid #dce4eb;border-radius:8px;padding:10px 14px;margin:0 0 20px;background:#f6f8fa;font-size:14px}.bts-toc summary{cursor:pointer;font-weight:600}.bts-toc ol{list-style:decimal;margin:12px 0 4px;padding-left:22px}.bts-toc li{margin:8px 0}.bts-reading p a,.bts-reading li a,.bts-hub-nav a:hover{text-decoration:underline;text-underline-offset:3px}.bts-table{max-width:100%;overflow-x:auto;margin:20px 0;border:1px solid #dce5eb;border-radius:8px}.bts-table table{width:100%;min-width:470px;border-collapse:collapse;font-size:14px}.bts-table th,.bts-table td{padding:12px 14px;border:1px solid #e1e7ed;text-align:left;line-height:1.8;vertical-align:top}.bts-table th{background:#edf3f7;color:#2b4359}.bts-figure{margin:24px 0}.bts-figure img{display:block;width:100%;height:auto;border:1px solid #e2e7eb;border-radius:12px}.bts-figure figcaption,.bts-original-picture figcaption{font-size:12px;color:#617180;line-height:1.7;margin-top:8px}.bts-editor-note{padding:16px 18px;background:#f2f5f8;border-left:3px solid #7d90a8;margin:30px 0;font-size:13px;line-height:1.8}.bts-editor-note p{margin:8px 0 0!important;font-size:13px}.bts-original-picture{margin-top:20px;border-top:1px solid #e1e5eb;padding-top:14px}.bts-original-picture summary{font-size:13px;cursor:pointer;color:#5b6578}.bts-photo-original{display:block;max-width:100%;width:auto;height:auto;max-height:450px;object-fit:contain;margin:16px auto}.bts-related{margin:26px 0;padding:22px;background:white;border:1px solid #e1e6ec;border-radius:12px}.bts-related h2{font-size:22px;margin-bottom:14px}.bts-related li{padding:14px 0;border-top:1px solid #e8ecf0}.bts-related li>a{font-size:16px;font-weight:600}.bts-related li>p{font-size:13px;color:#687888;margin-top:7px;line-height:1.7}.bts-cost-tool{padding:20px;border:1px solid #cbdce6;background:#f1f7fa;border-radius:12px;margin:24px 0}.bts-cost-tool h3{font-size:21px}.bts-cost-tool p{font-size:13px;line-height:1.8}.bts-cost-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0}.bts-cost-fields label{font-size:14px}.bts-cost-fields input{display:block;width:100%;padding:10px;margin-top:6px;border:1px solid #b7cbd6;border-radius:5px;background:white;font:inherit}.bts-tool-actions{display:flex;gap:12px;flex-wrap:wrap;margin:14px 0}.bts-tool-actions[hidden]{display:none}.bts-tool-actions button{padding:10px 16px;border:1px solid #275b77;border-radius:6px;background:#195d78;color:white;cursor:pointer}.bts-tool-actions button+button{background:white;color:#195d78}.bts-cost-tool output{display:block;font-size:15px;font-weight:600;line-height:1.8}.bts-index-list{columns:2;column-gap:28px}.bts-index-list li{break-inside:avoid;margin:10px 0}
@media(max-width:760px){.bts-home-intro{padding:18px 0}.bts-home-intro h1{font-size:25px}.bts-home-intro h1 span{display:block;margin:7px 0 0;font-size:15px}.bts-home-intro p{font-size:13px;line-height:1.8}.bts-hub-nav{padding:14px;margin-bottom:20px}.bts-hub-heading{display:block}.bts-hub-heading>a{display:block;margin-top:7px}.bts-hub-grid{grid-template-columns:1fr;gap:8px}.bts-hub-grid>a{padding:10px;grid-template-columns:22px 1fr}.bts-hub-grid strong{font-size:14px}.bts-hub-grid small{display:none}.bts-reading.yl-prose,.bts-reading.cy-prose{padding-top:8px}.yl-article-header,.cy-story-header{padding-bottom:14px!important}.bts-toc{font-size:13px;padding:9px 12px;margin-bottom:16px}.bts-table th,.bts-table td{padding:10px}.bts-cost-tool{padding:15px}.bts-cost-fields{grid-template-columns:1fr;gap:12px}.bts-cost-fields input{font-size:16px}.bts-related{padding:18px}.bts-related h2{font-size:20px}.bts-index-list{columns:1}.cy-intro{margin-bottom:16px}.cy-filters{padding:12px!important}.cy-field-keyword{grid-column:auto!important}.cy-filters label{font-size:11px}.cy-filters input,.cy-filters select{min-height:38px;padding-top:7px;padding-bottom:7px}.bts-home-intro+.bts-hub-nav{margin-top:0}}

/* Information diagrams need a separate text panel instead of a photo overlay. */
.bts-slide-diagram.yl-slide{height:510px;background:#f3f6f8}.bts-slide-diagram>.yl-photo{position:relative!important;inset:auto!important;z-index:auto!important;width:100%;height:265px!important;object-fit:contain!important;display:block}.bts-slide-diagram .yl-slide-shade{display:none}.bts-slide-diagram .yl-slide-body{position:static;padding:6px 32px 65px;margin:0;max-width:none;color:#273c50}.bts-slide-diagram .yl-feature-label{color:#53617b;border-color:#8f9bb0}.bts-slide-diagram h2{font-size:24px;line-height:1.45;margin:11px 0 9px}.bts-slide-diagram p{color:#596b7e;font-size:13px}.bts-slide-diagram .yl-hero-link{color:#526480;margin-top:12px}.bts-carousel .yl-carousel-arrows button{color:#465775;border-color:#a5b3c3;background:#fff}.bts-carousel .yl-dots button{background:#aab6c5}.bts-carousel .yl-dots button[aria-pressed=true]{background:#624cab}
@media(max-width:760px){.bts-slide-diagram.yl-slide{height:410px}.bts-slide-diagram>.yl-photo{height:175px!important}.bts-slide-diagram .yl-slide-body{padding:5px 22px 55px}.bts-slide-diagram h2{font-size:20px;line-height:1.5;margin:10px 0 8px}.bts-slide-diagram p{font-size:12px}.bts-slide-diagram .yl-hero-link{font-size:12px;margin-top:10px}}
/* Let tables scroll inside their grid item instead of expanding the page. */
.yl-reading-layout>*,.cy-reading-layout>*,.bts-reading,.yl-article,.cy-story,.yl-prose,.cy-prose{min-width:0;max-width:100%}
.bts-carousel .bts-slide-diagram.yl-slide{height:auto}.bts-slide-diagram .yl-slide-body{padding-bottom:20px}.bts-carousel .yl-carousel-controls{position:static;inset:auto;padding:8px 28px 20px;margin:0;min-height:64px}.bts-carousel .yl-dots{align-self:center}
@media(max-width:760px){.bts-slide-diagram .yl-slide-body{padding-bottom:14px}.bts-carousel .yl-carousel-controls{padding:6px 22px 18px;min-height:61px}.bts-table:before{content:"表格可左右滑动查看";display:block;padding:8px 12px;font-size:12px;color:#586b7e;background:#f5f8fa}}