/* Scoped prototype styles; official header/footer use live CSS. */
.tt-b2b-guide{--navy:#09171f;--ink:#152b32;--muted:#53675f;--mint:#98e9d0;--pale:#edf4ef;--line:#d3ded9}
@scope (.tt-b2b-guide) {
.tt-b2b-guide{--navy:#09171f;--ink:#152b32;--muted:#53675f;--mint:#98e9d0;--pale:#edf4ef;--line:#d3ded9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:17px/1.8 'Avenir Next','PingFang SC','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #24785e;outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:500;letter-spacing:-.035em;line-height:1.25}h2{font-size:38px}h3{font-size:24px}img{width:100%;display:block}.preview{background:#e4f3ed;padding:6px 5%;font-size:12px;letter-spacing:.06em;display:flex;justify-content:space-between}.logo{font-size:30px;letter-spacing:-1.7px;font-weight:650;white-space:nowrap}.logo span{font-weight:350}header{display:flex;justify-content:space-between;align-items:center;background:var(--navy);color:#f2f8f6;padding:24px 5%;gap:24px;border-bottom:1px solid #ffffff26}nav{display:flex;gap:30px;align-items:center;font-size:15px}nav a.active{color:var(--mint)}.navcta{border:1px solid #527366;padding:10px 18px}.wrap{max-width:1280px;width:90%;margin:auto}.hero{background:var(--navy);color:#f2f8f6}.hero-inner{display:grid;grid-template-columns:1.15fr 1fr;gap:70px;align-items:center;padding:74px 0 80px}.crumb{font-size:13px;color:#a9c2b7;margin-bottom:24px}.hero h1{font-size:clamp(40px,4.4vw,66px);line-height:1.18}.hero h1 em{font-style:normal;color:var(--mint)}.hero p{color:#b7cac3;max-width:580px;margin-top:24px;font-size:18px}.btn{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:48px;background:var(--mint);color:var(--ink);padding:13px 22px;border:none;font-weight:600;font-size:15px}.btn:hover{background:#b7f2df}.actions{display:flex;gap:28px;align-items:center;margin-top:34px;flex-wrap:wrap}.textlink{font-size:15px;border-bottom:1px solid #6f9181;padding-bottom:4px}.visual{position:relative}.visual img{aspect-ratio:3/2;object-fit:cover}.visual-caption{display:flex;justify-content:space-between;font-size:12px;color:#acc7ba;border-top:1px solid #ffffff30;padding-top:16px;margin-top:14px}.path{display:grid;grid-template-columns:repeat(4,1fr);padding:28px 0;border-top:1px solid #ffffff25}.path a{font-size:16px;border-right:1px solid #ffffff25;padding:0 25px}.path a:first-child{padding-left:0}.path a:last-child{border:0}.path small{color:#83b69f;display:block;font-size:12px;margin-bottom:4px}.section{padding:80px 0}.sectiontitle{display:grid;grid-template-columns:1fr 1fr;gap:70px;margin-bottom:36px;align-items:end}.sectiontitle p{color:var(--muted)}.number{font-size:12px;letter-spacing:.15em;color:#517864;margin-bottom:16px;display:block}.route{background:var(--pale)}.route-row{display:grid;grid-template-columns:70px 1fr 1.1fr 32px;align-items:center;gap:30px;padding:27px 0;border-top:1px solid #bfcec5}.route-row:last-child{border-bottom:1px solid #bfcec5}.route-row p{color:var(--muted);font-size:16px}.route-row .n{font-size:28px;color:#6d8b7d}.route-row:hover h3{color:#24785e}.arrow{font-size:25px}.tools{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}.filters{display:flex;gap:9px;flex-wrap:wrap}.filters button{border:0;background:transparent;padding:8px 13px;font-size:15px;color:var(--muted)}.filters button.selected{background:var(--navy);color:#fff}.search{width:220px;padding:9px 12px;border:1px solid var(--line);border-radius:0}.list-row{display:grid;grid-template-columns:150px 1fr 130px 24px;gap:25px;padding:30px 0;border-bottom:1px solid var(--line);align-items:center}.list-row small{color:#517864;font-size:13px}.list-row h3{font-size:23px}.list-row .reading{font-size:13px;color:var(--muted)}.list-row:hover h3{color:#24785e}.empty{padding:40px;color:var(--muted)}.feature{display:grid;grid-template-columns:1fr 1fr;background:var(--navy);color:#fff;gap:0}.feature img{height:100%;object-fit:cover}.feature-copy{padding:50px}.feature-copy h2{font-size:33px}.feature-copy p{margin:20px 0 28px;color:#b7cac3}.cta{background:#d9efe7;padding:50px 0}.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:35px}.cta p{margin-top:14px;color:var(--muted)}footer{background:var(--navy);color:#c6d8cf;padding:50px 5%;display:flex;align-items:center;gap:35px;flex-wrap:wrap}footer p{font-size:13px}footer p:last-child{margin-left:auto}.page-top{background:var(--pale);padding:55px 0}.page-top .crumb{color:#517864}.page-top h1{font-size:46px;max-width:940px}.page-top p{margin-top:20px;color:var(--muted);max-width:720px}.article-layout{display:grid;grid-template-columns:240px minmax(0,750px);justify-content:space-between;gap:60px;padding:60px 0 80px}.toc{position:sticky;top:25px;align-self:start;border-top:2px solid #638674;padding-top:18px}.toc strong{display:block;margin-bottom:15px}.toc a{display:block;color:#536d5f;font-size:14px;line-height:1.6;margin-bottom:14px}.bodytext p{margin:0 0 18px;font-size:18px;line-height:1.95}.bodytext h2{font-size:29px;margin:38px 0 20px;scroll-margin-top:25px}.bodytext h2:first-child{margin-top:0}.source{font-size:13px!important;padding:20px 0;border-top:1px solid var(--line)}.source a{text-decoration:underline}.check-intro{display:flex;justify-content:space-between;gap:25px;align-items:center;margin-bottom:30px}.progress{height:5px;background:#d5e1d8;margin-top:15px}.progress div{background:#277e68;height:100%;transition:width .25s}.check{display:flex;gap:20px;border-top:1px solid var(--line);padding:25px 0;align-items:flex-start;cursor:pointer}.check input{accent-color:#277e68;width:22px;height:22px;margin-top:8px;flex-shrink:0}.check strong{font-weight:600;display:block;font-size:21px}.check p{color:var(--muted);margin-top:7px}.check input:checked+div strong{color:#277e68}.reset{background:#fff;border:1px solid var(--line);padding:9px 16px}.scope-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}.scope-grid h2{font-size:28px;margin-bottom:20px}.scope-grid ul{padding-left:22px}.scope-grid li{margin-bottom:15px}.notice{border-left:3px solid #5c8b76;background:var(--pale);padding:20px;margin-top:28px;color:var(--muted)}@media(max-width:850px){header{align-items:flex-start;flex-direction:column;padding:20px 5%;gap:15px}nav{gap:16px;flex-wrap:wrap;font-size:14px}.navcta{padding:5px 9px}.hero-inner{grid-template-columns:1fr;gap:35px;padding:44px 0}.hero h1{font-size:43px}.hero p{font-size:17px}.visual{max-width:600px}.path{grid-template-columns:1fr 1fr;gap:20px}.path a{padding:0!important;border:0}.section{padding:50px 0}.sectiontitle{grid-template-columns:1fr;gap:20px}h2{font-size:31px}.route-row{grid-template-columns:35px 1fr 22px;gap:16px}.route-row p{grid-column:2;grid-row:2}.route-row .arrow{grid-column:3;grid-row:1}.tools{align-items:stretch;flex-direction:column}.search{width:100%}.list-row{grid-template-columns:1fr 24px;gap:8px}.list-row small{grid-column:1}.list-row h3{grid-column:1}.list-row .arrow{grid-column:2;grid-row:2}.list-row .reading{grid-column:1}.feature{grid-template-columns:1fr}.feature-copy{padding:30px}.cta .wrap{align-items:flex-start;flex-direction:column}.cta h2{font-size:28px}.page-top{padding:35px 0}.page-top h1{font-size:35px}.article-layout{grid-template-columns:1fr;gap:30px;padding-top:35px}.toc{position:static}.toc a{display:inline-block;margin:0 18px 12px 0}.scope-grid{grid-template-columns:1fr;gap:25px}footer{gap:20px}footer p:last-child{margin-left:0}.check-intro{align-items:flex-start;flex-direction:column}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.hero{display:block;min-height:0;padding:0}.section h2{font-size:38px}.topic-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:13px 5%;background:#edf4ef;font-size:14px;border-bottom:1px solid #d3ded9}.topic-bar nav{display:flex;gap:25px;flex-wrap:wrap}.topic-bar small{color:#53675f}.article-layout nav{margin-left:0}.section .feature-copy h2{font-size:33px}@media(max-width:850px){.section h2{font-size:31px}.topic-bar nav{gap:18px}.topic-bar{font-size:13px}}
}
@scope (.tt-b2b-guide) {
.b2b-hero .hero-inner{padding:58px 0 58px;gap:65px}.b2b-hero h1{font-size:clamp(42px,4.25vw,64px)}.hero-note{display:flex;justify-content:space-between;gap:30px;border-top:1px solid #ffffff28;padding:22px 0;color:#b5cbc0;font-size:13px}.start-strip{padding:48px 0;display:grid;grid-template-columns:1fr 1.35fr;gap:60px;align-items:center;border-bottom:1px solid var(--line)}.start-strip h2{font-size:29px}.start-strip .number{margin-bottom:10px}.entry-links{display:flex;flex-direction:column;gap:8px}.entry-links a{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:8px 0;font-size:16px}.guide-layout{display:grid;grid-template-columns:230px minmax(0,860px);gap:85px;padding-top:64px;padding-bottom:50px;justify-content:space-between}.guide-toc{position:sticky;top:25px;border-top:2px solid #45765e;padding-top:23px}.guide-toc>strong{font-size:16px;display:block;margin-bottom:20px}.guide-toc a{display:flex;gap:18px;font-size:16px;padding:11px 12px;border-left:2px solid transparent}.guide-toc a span{color:#6b897b;font-size:12px;padding-top:3px}.guide-toc a.current{background:#edf4ef;border-left-color:#277e68;color:#1a674e}.guide-toc .toc-extra{font-size:14px;color:#517864;border-top:1px solid var(--line);margin-top:14px;padding-left:0}.guide-toc p{font-size:13px;color:var(--muted);margin-top:22px;max-width:200px}.guide-chapter{padding:0 0 65px;margin-bottom:55px;border-bottom:1px solid var(--line);scroll-margin-top:25px}.guide-chapter .number{margin-bottom:20px}.chapter-head h2{font-size:39px;line-height:1.35}.chapter-deck{font-size:20px!important;color:#536d5f!important;margin:22px 0 28px!important;line-height:1.8!important}.guide-chapter p{font-size:18px;line-height:1.95;margin:18px 0;color:#354f43}.guide-chapter h3{font-size:24px;line-height:1.4;margin:35px 0 20px}.table-scroll{overflow-x:auto;margin:28px 0;border-top:2px solid #446d5a}table{width:100%;border-collapse:collapse;font-size:16px;text-align:left;line-height:1.85}th{background:#edf4ef;font-weight:600;padding:15px 18px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:17px 18px;vertical-align:top;border-bottom:1px solid var(--line)}td:first-child{font-weight:600;min-width:115px}td:nth-child(2){min-width:220px}.example{padding:20px 25px;background:#f4f7f4;border-left:3px solid #799889;margin:28px 0}.example>span{font-size:12px;letter-spacing:.06em;color:#567867}.example p{margin:10px 0 0;font-size:17px}.deliverable{padding:24px 0;border-top:1px dashed #afc5b6;border-bottom:1px dashed #afc5b6;margin:28px 0}.deliverable strong{font-size:14px;color:#2c7154}.deliverable p{font-size:17px;margin:8px 0 0}.deep-link{display:grid;grid-template-columns:85px 1fr 25px;gap:18px;padding:18px 0;border-bottom:1px solid var(--line);align-items:center}.deep-link span{font-size:12px;color:#517864}.deep-link strong{font-size:16px;font-weight:500;line-height:1.7}.deep-link b{font-size:22px;font-weight:400}.deep-link:hover strong{color:#237353}.step-lines{border-top:1px solid var(--line);margin:28px 0}.step-lines>div{display:grid;grid-template-columns:30px 1fr;gap:22px;align-items:start;padding:20px 0;border-bottom:1px solid var(--line)}.step-lines b{font-size:13px;color:#527964;padding-top:5px}.step-lines p{margin:0;font-size:17px}.step-lines strong{display:block;font-size:19px;font-weight:600;margin-bottom:3px}.enquiry-flow{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:24px 18px;background:#edf4ef;margin:28px 0;font-size:14px}.enquiry-flow b{font-weight:400;color:#719481}.guide-finish{background:#edf4ef;padding:35px;border-bottom:0;margin-bottom:0}.guide-finish h2{font-size:31px}.download{background:none;border:0;cursor:pointer;padding:8px 0;border-bottom:1px solid #6f9181;font-weight:600}.source{font-size:12px!important;color:#687d71!important}.source a{display:block}.guide-body{min-width:0}@media(max-width:1000px){.guide-layout{gap:40px;grid-template-columns:190px minmax(0,1fr)}.chapter-head h2{font-size:34px}}@media(max-width:850px){.b2b-hero .hero-inner{padding:38px 0;gap:30px}.b2b-hero h1{font-size:39px}.hero-note{flex-direction:column;gap:7px;font-size:12px}.start-strip{grid-template-columns:1fr;gap:20px;padding:35px 0}.guide-layout{grid-template-columns:1fr;gap:25px;padding-top:30px}.guide-toc{position:static;padding-top:18px}.guide-toc>strong{margin-bottom:10px}.guide-toc a{display:inline-flex;padding:8px 12px}.guide-toc .toc-extra{display:inline-block;margin:8px 18px 0 0}.guide-toc p{max-width:none}.guide-chapter{padding-bottom:40px;margin-bottom:38px}.chapter-head h2{font-size:29px}.chapter-deck{font-size:18px!important}.guide-chapter p{font-size:17px}.guide-chapter h3{font-size:22px}.deep-link{grid-template-columns:1fr 25px;gap:6px}.deep-link span{grid-column:1}.deep-link strong{grid-column:1}.deep-link b{grid-column:2;grid-row:2}.enquiry-flow{flex-wrap:wrap;justify-content:flex-start;gap:10px}.guide-finish{padding:23px}.guide-finish h2{font-size:26px}.table-scroll{margin:20px 0}th,td{padding:12px}table{font-size:14px}}
}

.tt-b2b-guide [hidden]{display:none!important}.tt-b2b-guide .b2b-byline{display:flex;gap:18px;flex-wrap:wrap;font-size:12px;color:#b5cbc0;margin-top:24px}.tt-b2b-guide .guide-chapter{scroll-margin-top:30px}.tt-b2b-guide .b2b-sources h2{font-size:24px}.tt-b2b-guide .b2b-sources li{margin:12px 0;font-size:15px;overflow-wrap:anywhere}.tt-b2b-guide .b2b-sources p{font-size:14px;color:#53675f}.tt-b2b-guide .table-scroll:focus-visible{outline:3px solid #277e68;outline-offset:4px}.tt-b2b-guide .b2b-sources ul{padding-left:22px}.tt-b2b-guide .chapter-head+p{font-size:20px;color:#536d5f}.tt-b2b-guide #plan{scroll-margin-top:30px}

.tt-b2b-guide .guide-toc{display:block;margin-left:0}.tt-b2b-guide .guide-toc>strong{display:block}