/* Bitget Support composition; shared USDTPreview branding and theme. */
:root[data-member-shell] .public-info-main.exchange-center{--ec-bg:#fff;--ec-band:#f4f5f6;--ec-surface:#fff;--ec-ink:#171b20;--ec-muted:#727a84;--ec-line:#e4e7eb;--ec-accent:#067e8b;--ec-hover:#f5f7f8;--ec-selected:#ecf6f7;width:100%;max-width:none;margin:0;padding:0 0 72px;background:var(--ec-bg);color:var(--ec-ink);font-size:15px;line-height:1.6}
:root[data-member-shell][data-theme=dark] .public-info-main.exchange-center{--ec-bg:#090a0b;--ec-band:#101113;--ec-surface:#1c1e21;--ec-ink:#eef0f2;--ec-muted:#9ca3ac;--ec-line:#292c31;--ec-accent:#80d4df;--ec-hover:#14171a;--ec-selected:#14292c}
.exchange-center *{box-sizing:border-box}.exchange-center [hidden]{display:none!important}.exchange-center a{color:inherit;text-decoration:none}.exchange-center button,.exchange-center input{font:inherit}.exchange-center button,.exchange-center a{touch-action:manipulation}.exchange-center button{cursor:pointer}.exchange-center svg{flex-shrink:0}.exchange-center :is(a,button,input):focus-visible{outline:2px solid var(--ec-accent);outline-offset:4px}.exchange-center :is(h1,h2,h3,p){margin:0}.exchange-center h1{font-size:36px;font-weight:600;line-height:1.3;letter-spacing:-.035em}.exchange-center h2{font-size:26px;font-weight:600;line-height:1.4;letter-spacing:-.025em}.exchange-center h3{font-size:18px;font-weight:600;line-height:1.55;letter-spacing:-.015em}
.exchange-center .ec-width{width:calc(100% - 80px);max-width:1200px;margin-inline:auto}.exchange-center .ec-banner{background:var(--ec-band);padding:48px 0}.exchange-center .ec-banner-row{display:flex;align-items:center;justify-content:space-between;gap:48px;min-height:64px}.exchange-center .ec-banner-row h1{max-width:600px}.exchange-center .ec-help-hero{text-align:center;padding:58px 0 64px}.exchange-center .ec-help-hero h1{font-size:44px}.exchange-center .ec-help-hero .ec-search{margin:28px auto 0;width:560px;max-width:100%;height:60px}
.exchange-center .ec-search{width:360px;min-width:0;display:flex;align-items:center;gap:12px;height:48px;padding:0 12px 0 18px;border:1px solid var(--ec-line);border-radius:8px;background:var(--ec-surface);color:var(--ec-muted)}.exchange-center .ec-search:focus-within{border-color:var(--ec-accent)}.exchange-center .ec-search input[type=search]{width:100%;min-width:0;border:0;background:none;color:var(--ec-ink);outline:0;font-size:14px;height:100%;padding:0}.exchange-center .ec-search input::placeholder{color:var(--ec-muted)}.exchange-center .ec-search button{border:0;border-radius:5px;display:grid;place-items:center;flex:0 0 32px;width:32px;height:32px;padding:0;background:transparent;color:var(--ec-ink)}.exchange-center .ec-search button:hover{background:var(--ec-hover)}
.exchange-center .ec-content{padding-top:48px;animation:ec-enter .3s ease-out both}.exchange-center .ec-topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-bottom:24px;border-bottom:1px solid var(--ec-line)}.exchange-center .ec-topic-grid>a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:18px 8px 20px;font-size:16px;position:relative;text-align:center;transition:color .18s ease}.exchange-center .ec-topic-grid>a:hover,.exchange-center .ec-topic-grid>a[aria-current=page]{color:var(--ec-accent)}.exchange-center .ec-topic-grid>a[aria-current=page]::after{content:'';position:absolute;bottom:0;left:calc(50% - 20px);width:40px;height:2px;background:var(--ec-accent)}.exchange-center .ec-topic-symbol{display:grid;place-items:center;height:52px;color:var(--ec-accent)}.exchange-center .ec-topic-symbol svg{width:44px;height:44px;stroke-width:1.35}
.exchange-center .ec-section-heading{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:28px}.exchange-center .ec-section-heading>a{color:var(--ec-muted);font-size:14px;white-space:nowrap}.exchange-center .ec-section-heading>a:hover{color:var(--ec-accent)}.exchange-center .ec-total{color:var(--ec-muted);font-size:13px;font-variant-numeric:tabular-nums}.exchange-center .ec-list-section{padding-top:36px}.exchange-center .ec-article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:64px;row-gap:0}.exchange-center .ec-article-list>article{min-width:0;border-bottom:1px solid var(--ec-line)}.exchange-center .ec-article-list article>a{display:block;height:100%;padding:23px 0 25px}.exchange-center .ec-article-list h3{font-size:16px;line-height:1.7;font-weight:500;overflow-wrap:anywhere;word-break:keep-all;transition:color .18s ease}.exchange-center .ec-article-list a:hover h3{color:var(--ec-accent)}.exchange-center .ec-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:9px;color:var(--ec-muted);font-size:12px;line-height:1.6}.exchange-center .ec-meta time{font-variant-numeric:tabular-nums;white-space:nowrap}.exchange-center .ec-empty{grid-column:1/-1;padding:64px 16px;color:var(--ec-muted);text-align:center;font-size:15px}
.exchange-center .ec-pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:38px}.exchange-center .ec-pagination :is(a,span){display:grid;place-items:center;min-width:36px;height:36px;padding:0 8px;border-radius:5px;color:var(--ec-muted);font-size:14px;font-variant-numeric:tabular-nums}.exchange-center .ec-pagination a:hover{background:var(--ec-hover);color:var(--ec-ink)}.exchange-center .ec-pagination a[aria-current=page]{background:var(--ec-ink);color:var(--ec-bg);font-weight:600}.exchange-center .ec-bottom-links{display:flex;justify-content:flex-end;gap:24px;border-top:1px solid var(--ec-line);margin-top:48px;padding-top:24px;color:var(--ec-muted);font-size:14px}
.exchange-center .ec-quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.exchange-center .ec-quick-grid>a{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;min-height:150px;padding:25px 20px;border:1px solid var(--ec-line);border-radius:10px;text-align:center;font-size:16px;line-height:1.5;transition:border-color .18s ease,background .18s ease}.exchange-center .ec-quick-grid>a:hover{border-color:var(--ec-accent);background:var(--ec-hover)}.exchange-center .ec-quick-symbol{height:32px;color:var(--ec-accent)}.exchange-center .ec-quick-symbol svg{display:block;width:30px;height:30px}.exchange-center .ec-block{margin-top:64px}.exchange-center .ec-guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.exchange-center .ec-guide-grid>section{display:flex;flex-direction:column;align-items:flex-start;padding:28px 30px;border:1px solid var(--ec-line);border-radius:10px;min-width:0}.exchange-center .ec-guide-grid h3{margin-bottom:18px}.exchange-center .ec-guide-grid ul{list-style:none;padding:0;margin:0 0 24px;width:100%}.exchange-center .ec-guide-grid li+li{margin-top:14px}.exchange-center .ec-guide-grid li a{display:block;line-height:1.7;font-size:15px;word-break:keep-all}.exchange-center .ec-guide-grid li a:hover{color:var(--ec-accent)}.exchange-center .ec-more{display:flex;justify-content:space-between;align-items:center;width:100%;margin-top:auto;color:var(--ec-muted);font-size:13px}.exchange-center .ec-more:hover{color:var(--ec-accent)}
.exchange-center .ec-contact{display:flex;align-items:center;gap:24px;margin-top:64px;padding:32px 0 0;border-top:1px solid var(--ec-line)}.exchange-center .ec-contact-icon{display:grid;place-items:center;flex:0 0 48px;color:var(--ec-accent)}.exchange-center .ec-contact-icon svg{width:42px;height:42px}.exchange-center .ec-contact h2{font-size:23px}.exchange-center .ec-contact p{margin-top:6px;color:var(--ec-muted);font-size:14px}.exchange-center .ec-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 26px;border-radius:6px;background:var(--ec-ink);color:var(--ec-bg);font-size:14px;font-weight:600;white-space:nowrap}.exchange-center .ec-contact .ec-button{margin-left:auto}.exchange-center .ec-button:hover{opacity:.86}
.exchange-center .ec-tabs{display:flex;gap:30px;overflow-x:auto;border-bottom:1px solid var(--ec-line);scrollbar-width:none}.exchange-center .ec-tabs a{white-space:nowrap;display:block;padding:14px 0;border-bottom:2px solid transparent;color:var(--ec-muted)}.exchange-center .ec-tabs a[aria-current=page]{color:var(--ec-accent);border-color:var(--ec-accent);font-weight:600}.exchange-center .ec-back-link{display:inline-flex;align-items:center;gap:7px;margin-top:30px;font-size:14px;color:var(--ec-muted)}.exchange-center .ec-back-link:hover{color:var(--ec-accent)}
.exchange-center .ec-article-page{padding-top:34px}.exchange-center .ec-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:10px;color:var(--ec-muted);font-size:12px;line-height:1.6;margin-bottom:34px}.exchange-center .ec-breadcrumb a:hover{color:var(--ec-accent)}.exchange-center .ec-reading-layout{display:grid;grid-template-columns:190px minmax(0,1fr) 220px;gap:36px;align-items:start}.exchange-center .ec-article-nav{display:flex;flex-direction:column;gap:6px;min-width:0;position:sticky;top:94px}.exchange-center .ec-article-nav h2{font-size:19px;margin-bottom:12px}.exchange-center .ec-article-nav a{padding:12px 14px;font-size:14px;border-radius:6px;color:var(--ec-muted)}.exchange-center .ec-article-nav a[aria-current=page]{background:var(--ec-selected);color:var(--ec-accent);font-weight:600}.exchange-center .ec-article-nav a:hover{background:var(--ec-hover)}.exchange-center .ec-reading{min-width:0;padding:0 32px 0 0;border-right:1px solid var(--ec-line)}.exchange-center .ec-reading h1{font-size:30px;line-height:1.5;letter-spacing:-.025em;overflow-wrap:anywhere;word-break:keep-all}.exchange-center .ec-reading time{display:block;margin-top:16px;color:var(--ec-muted);font-size:13px;font-variant-numeric:tabular-nums}.exchange-center .ec-reading-body{margin-top:34px;font-size:16px;line-height:1.95;overflow-wrap:anywhere;word-break:normal;min-height:200px}.exchange-center .ec-reading>.ec-back-link{margin-top:36px}.exchange-center .ec-related{padding-top:5px;min-width:0}.exchange-center .ec-copy{display:flex;align-items:center;gap:10px;min-height:40px;padding:8px 14px;border:1px solid var(--ec-line);border-radius:6px;background:transparent;color:var(--ec-ink);font-size:13px}.exchange-center .ec-copy:hover{background:var(--ec-hover)}.exchange-center .ec-copy-status{display:block;font-size:12px;color:var(--ec-muted);min-height:20px;margin-top:5px}.exchange-center .ec-related h2{font-size:19px;margin:20px 0}.exchange-center .ec-related ul{list-style:none;padding:0;margin:0}.exchange-center .ec-related li+li{margin-top:22px}.exchange-center .ec-related li a{display:block;font-size:14px;line-height:1.65;color:var(--ec-muted);word-break:keep-all;overflow-wrap:anywhere}.exchange-center .ec-related a:hover{color:var(--ec-accent)}.exchange-center .ec-related-contact{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--ec-line);font-size:14px}
@keyframes ec-enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media(min-width:1800px){.exchange-center .ec-width{max-width:1440px}.exchange-center .ec-reading-layout{grid-template-columns:220px minmax(0,1fr) 250px;gap:44px}.exchange-center .ec-reading{padding-right:44px}}
@media(min-width:2400px){.exchange-center .ec-width{max-width:1680px}.exchange-center .ec-article-list{column-gap:90px}.exchange-center .ec-reading-layout{grid-template-columns:230px minmax(0,1fr) 270px;gap:60px}}
@media(max-width:1100px){.exchange-center .ec-reading-layout{grid-template-columns:160px minmax(0,1fr);gap:28px}.exchange-center .ec-reading{border:0;padding:0}.exchange-center .ec-related{grid-column:2;border-top:1px solid var(--ec-line);padding-top:24px}.exchange-center .ec-article-list{column-gap:32px}}
@media(max-width:760px){:root[data-member-shell] .public-info-main.exchange-center{padding-bottom:48px}.exchange-center .ec-width{width:calc(100% - 32px)}.exchange-center .ec-banner{padding:32px 0}.exchange-center .ec-banner-row{display:block}.exchange-center h1{font-size:28px}.exchange-center h2{font-size:23px}.exchange-center .ec-banner-row .ec-search{margin-top:22px;width:100%}.exchange-center .ec-help-hero{padding:38px 0}.exchange-center .ec-help-hero h1{font-size:29px}.exchange-center .ec-help-hero .ec-search{margin-top:24px;height:52px}.exchange-center .ec-content{padding-top:30px}.exchange-center .ec-topic-grid{gap:4px;padding-bottom:16px}.exchange-center .ec-topic-grid>a{padding:6px 2px 15px;gap:10px;font-size:12px;line-height:1.45}.exchange-center .ec-topic-symbol{height:40px}.exchange-center .ec-topic-symbol svg{width:30px;height:30px}.exchange-center .ec-article-list{grid-template-columns:minmax(0,1fr)}.exchange-center .ec-article-list article>a{padding:20px 0}.exchange-center .ec-article-list h3{font-size:15px}.exchange-center .ec-list-section{padding-top:28px}.exchange-center .ec-section-heading{margin-bottom:18px;gap:12px}.exchange-center .ec-quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.exchange-center .ec-quick-grid>a{min-height:124px;padding:20px 10px;gap:14px;font-size:14px;border-radius:8px}.exchange-center .ec-block{margin-top:42px}.exchange-center .ec-guide-grid{grid-template-columns:minmax(0,1fr);gap:16px}.exchange-center .ec-guide-grid>section{padding:23px}.exchange-center .ec-guide-grid li a{font-size:14px}.exchange-center .ec-contact{flex-wrap:wrap;gap:14px;margin-top:42px;padding-top:26px}.exchange-center .ec-contact h2{font-size:20px}.exchange-center .ec-contact p{font-size:13px}.exchange-center .ec-contact-icon{flex-basis:34px}.exchange-center .ec-contact-icon svg{width:32px;height:32px}.exchange-center .ec-contact .ec-button{margin-left:48px}.exchange-center .ec-tabs{gap:22px;font-size:13px}.exchange-center .ec-breadcrumb{margin-bottom:22px;font-size:11px;gap:7px}.exchange-center .ec-reading-layout{display:block}.exchange-center .ec-article-nav{position:static;flex-direction:row;overflow-x:auto;gap:14px;scrollbar-width:none;border-bottom:1px solid var(--ec-line);margin-bottom:26px;padding-bottom:12px}.exchange-center .ec-article-nav h2{display:none}.exchange-center .ec-article-nav a{white-space:nowrap;font-size:12px;padding:8px 10px}.exchange-center .ec-reading h1{font-size:25px;line-height:1.5}.exchange-center .ec-reading-body{font-size:15px;line-height:1.9;margin-top:26px;min-height:0}.exchange-center .ec-reading time{font-size:12px}.exchange-center .ec-related{margin-top:32px}.exchange-center .ec-related ul{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}.exchange-center .ec-related li+li{margin:0}.exchange-center .ec-related-contact{max-width:300px}.exchange-center .ec-bottom-links{margin-top:32px}}
@media(prefers-reduced-motion:reduce){.exchange-center .ec-content{animation:none}.exchange-center :is(a,h3){transition:none!important}}

/* Notice-specific reading rhythm; shared help center is unchanged. */
.ec-notice-content .ec-topic-grid{padding-top:42px;padding-bottom:20px}.ec-notice-content .ec-list-section{padding-top:28px}.ec-notice-content .ec-article-list article>a{padding-top:23px;padding-bottom:23px}.ec-reading-body p{margin:0 0 1.3em}.ec-reading-body h2{font-size:22px;margin:34px 0 16px;line-height:1.45}.ec-reading-body h3{font-size:18px;margin:26px 0 12px}.ec-reading-body ul,.ec-reading-body ol{padding-left:24px;margin:14px 0 26px}.ec-reading-body li{margin:8px 0}.ec-reading-body blockquote{margin:24px 0;padding:8px 20px;border-left:3px solid var(--ec-accent);color:var(--ec-muted)}.ec-reading-body a{color:var(--ec-accent);text-decoration:underline;text-underline-offset:3px}.notice-align-center{text-align:center}.notice-align-right{text-align:right}@media(max-width:600px){.ec-notice-content .ec-topic-grid{padding-top:24px}.ec-reading-body h2{font-size:20px}.ec-reading-body h3{font-size:17px}}

.exchange-center .ec-width{max-width:1480px;width:calc(100% - 80px)}.ec-reading-body p:has(>br:only-child){margin:0;height:10px;line-height:10px}@media(min-width:1800px){.exchange-center .ec-width{width:calc(100% - 112px);max-width:1860px}}@media(min-width:2400px){.exchange-center .ec-width{max-width:2240px;width:calc(100% - 160px)}}@media(max-width:760px){.exchange-center .ec-width{width:calc(100% - 32px)}}
/* Notices: one article per row, with a stable date column. */
.exchange-center .ec-notice-tabs{gap:32px;justify-content:flex-start;border-bottom:1px solid var(--ec-line);padding:0;margin:0}.exchange-center .ec-notice-tabs>a{padding:0 0 16px;border-radius:0;font-size:14px;white-space:nowrap;border-bottom:2px solid transparent}.exchange-center .ec-notice-tabs>a[aria-current=page]{color:var(--ec-ink);background:transparent;border-color:var(--ec-ink)}.exchange-center .ec-notice-content .ec-section-heading{margin-bottom:12px}.exchange-center .ec-notice-content .ec-section-heading h2{font-size:18px}.exchange-center .ec-notice-content .ec-article-list{display:block}.exchange-center .ec-notice-content .ec-article-list article>a{display:grid;grid-template-columns:minmax(0,1fr) 205px;align-items:center;gap:32px;padding:24px 4px;border-bottom:1px solid var(--ec-line);transition:color .15s,background .15s}.exchange-center .ec-notice-content .ec-article-list article>a:hover{background:var(--ec-hover)}.exchange-center .ec-notice-content .ec-article-list h3{font-size:15px;font-weight:450;line-height:1.6;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.exchange-center .ec-notice-content .ec-meta{margin:0;display:grid;grid-template-columns:105px 90px;gap:10px;font-size:12px;text-align:right;white-space:nowrap}.exchange-center .ec-pagination a[aria-current=page],.exchange-center .ec-pagination a[aria-current=page]:hover{background:var(--ec-ink)!important;color:var(--ec-bg)!important;border:1px solid var(--ec-ink)}.exchange-center .ec-pagination a:not([aria-current=page]){border:1px solid transparent}.exchange-center .ec-pagination a:not([aria-current=page]):hover{border-color:var(--ec-line);background:var(--ec-hover)}
/* Original FAQ disclosure behavior, aligned with the public exchange typography. */
.exchange-center .hc-content{padding-top:38px}.hc-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:56px;align-items:start}.hc-sidebar{position:sticky;top:94px;min-width:0}.hc-topic-nav{display:flex;flex-direction:column;gap:5px}.hc-topic-nav>a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 14px;border-radius:4px;font-size:14px;color:var(--ec-muted);white-space:nowrap;transition:color .16s,background .16s}.hc-topic-nav>a:hover{background:var(--ec-hover);color:var(--ec-ink)}.hc-topic-nav>a[aria-current=page]{color:var(--ec-ink);background:var(--ec-hover);font-weight:600;box-shadow:inset 2px 0 var(--ec-ink)}.hc-topic-count{font-size:12px;font-weight:400;font-variant-numeric:tabular-nums;color:var(--ec-muted)}.hc-account-links{display:grid;gap:5px;margin-top:24px;padding:20px 14px 0;border-top:1px solid var(--ec-line)}.hc-account-links>a{display:flex;justify-content:space-between;padding:8px 0;font-size:13px;color:var(--ec-muted)}.hc-account-links>a:hover{color:var(--ec-ink)}.hc-heading{display:flex;align-items:center;gap:16px;justify-content:space-between;padding:7px 0 23px}.exchange-center .hc-heading h2{font-size:23px;letter-spacing:-.025em}.hc-heading>span{font-size:12px;color:var(--ec-muted);white-space:nowrap}.hc-questions{min-width:0}.hc-faq-list{border-top:1px solid var(--ec-line)}.hc-faq{border-bottom:1px solid var(--ec-line)}.hc-faq>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 2px;font-size:16px;font-weight:450;cursor:pointer;line-height:1.6}.hc-faq>summary::-webkit-details-marker{display:none}.hc-faq>summary::marker{content:''}.hc-faq>summary>span{min-width:0;word-break:keep-all;overflow-wrap:anywhere}.hc-faq>summary svg{color:var(--ec-muted);transition:transform .2s,color .2s}.hc-faq>summary:hover{color:var(--ec-accent)}.hc-faq[open]>summary{font-weight:550}.hc-faq[open]>summary svg{transform:rotate(180deg);color:var(--ec-ink)}.hc-faq>summary:focus-visible{outline:2px solid var(--ec-accent);outline-offset:3px}.hc-answer{padding:0 38px 28px 2px;font-size:15px;line-height:1.95;color:var(--ec-muted);overflow-wrap:anywhere;animation:hc-answer-in .18s ease-out}.hc-answer p{max-width:1200px}.exchange-center .hc-detail{padding-top:30px}.hc-detail .ec-breadcrumb{margin-bottom:30px}.hc-detail .hc-layout{grid-template-columns:210px minmax(0,1fr)}.hc-article{min-width:0}.exchange-center .hc-article h1{font-size:32px;line-height:1.45;letter-spacing:-.035em;word-break:keep-all;overflow-wrap:anywhere;padding:4px 0 24px;border-bottom:1px solid var(--ec-line)}.hc-detail-body{padding:30px 0 40px;max-width:1320px;font-size:17px;line-height:1.95;word-break:keep-all;overflow-wrap:anywhere}.hc-detail-footer{display:flex;align-items:center;gap:20px;border-top:1px solid var(--ec-line);padding:22px 0;color:var(--ec-muted)}.hc-detail-footer .ec-back-link{margin:0;font-size:13px}.hc-share{display:flex;align-items:center;gap:8px;border:0;background:transparent;color:var(--ec-muted);padding:4px 0;font-size:12px!important;margin-left:auto}.hc-share:hover{color:var(--ec-ink)}.hc-detail-footer .ec-copy-status:empty{display:none}.hc-related{padding-top:24px}.exchange-center .hc-related h2{font-size:17px;margin-bottom:16px}.hc-related ul{padding:0;list-style:none;margin:0}.hc-related a{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:17px 0;border-bottom:1px solid var(--ec-line);color:var(--ec-muted);font-size:14px}.hc-related a:hover{color:var(--ec-ink)}.hc-related svg{flex-shrink:0}@keyframes hc-answer-in{from{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}@media(min-width:1800px){.hc-layout,.hc-detail .hc-layout{grid-template-columns:230px minmax(0,1fr);gap:64px}.hc-faq>summary{padding:26px 2px}}@media(max-width:900px){.hc-layout,.hc-detail .hc-layout{grid-template-columns:180px minmax(0,1fr);gap:28px}.hc-detail-body{font-size:16px}}@media(max-width:760px){.exchange-center .ec-notice-tabs{gap:25px}.exchange-center .ec-notice-tabs>a{font-size:13px;padding-bottom:13px}.exchange-center .ec-notice-content .ec-article-list article>a{grid-template-columns:minmax(0,1fr) 73px;gap:12px;padding:23px 0}.exchange-center .ec-notice-content .ec-article-list h3{font-size:14px}.exchange-center .ec-notice-content .ec-meta{display:block;font-size:10px}.exchange-center .ec-notice-content .ec-meta>span{display:none}.exchange-center .ec-notice-content .ec-section-heading h2{font-size:17px}.hc-layout,.hc-detail .hc-layout{grid-template-columns:minmax(0,1fr);gap:24px}.hc-sidebar{position:static}.hc-topic-nav{flex-direction:row;overflow-x:auto;gap:6px;padding-bottom:8px;scrollbar-width:thin}.hc-topic-nav>a{padding:9px 12px;font-size:12px;flex-shrink:0}.hc-topic-nav>a[aria-current=page]{box-shadow:inset 0 -2px var(--ec-ink);border-radius:0}.hc-account-links{display:flex;overflow-x:auto;gap:22px;margin-top:6px;padding:10px 2px;border-top:0;border-bottom:1px solid var(--ec-line)}.hc-account-links>a{white-space:nowrap;gap:5px;font-size:11px}.exchange-center .hc-heading h2{font-size:21px}.hc-heading{padding:0 0 18px}.hc-faq>summary{font-size:14px;gap:16px;padding:21px 0}.hc-faq>summary svg{width:16px;height:16px}.hc-answer{font-size:14px;line-height:1.9;padding:0 20px 22px 0}.exchange-center .hc-article h1{font-size:25px;line-height:1.5;padding-top:0}.hc-detail-body{font-size:15px;padding:24px 0 30px}.hc-related a{font-size:13px}.exchange-center .hc-content{padding-top:25px}.hc-detail .ec-breadcrumb{font-size:11px;margin-bottom:20px}}@media(prefers-reduced-motion:reduce){.hc-answer{animation:none}.hc-faq>summary svg{transition:none}}

.exchange-center .ec-notice-content .ec-article-list article{border-bottom:0}.hc-answer{word-break:keep-all}

/* Owner followup: restore the four self-service icons; one FAQ reading column. */
.exchange-center .hc-self-service>.hc-questions{margin-top:46px}
.exchange-center .hc-self-service #ec-quick-title{font-size:22px}
.exchange-center .hc-self-service .ec-section-heading{margin-bottom:22px}
.exchange-center .hc-detail-single .hc-layout{display:block}
.exchange-center .hc-detail-single .hc-article{width:100%}
.exchange-center .hc-answer p+p,.exchange-center .hc-detail-body p+p{margin-top:12px}
.exchange-center .hc-answer p{max-width:1400px}
/* Notice details: the article occupies one column; related rows follow its footer. */
.exchange-center .nd-page{padding-top:30px}
.nd-navigation{display:flex;align-items:center;padding-bottom:26px}
.exchange-center .nd-navigation .ec-back-link{margin:0;font-size:14px}
.nd-header{padding-bottom:25px;border-bottom:1px solid var(--ec-line)}
.exchange-center .nd-header h1{font-size:30px;line-height:1.45;letter-spacing:-.03em;word-break:keep-all;overflow-wrap:anywhere;font-weight:600}
.nd-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;margin-top:16px;color:var(--ec-muted);font-size:13px;line-height:1.6}
.nd-meta time{font-variant-numeric:tabular-nums;white-space:nowrap}
.exchange-center .nd-body{font-size:16px;line-height:1.85;margin:0;padding:30px 0 32px;min-height:0;max-height:none;overflow:visible;word-break:keep-all;overflow-wrap:anywhere;color:var(--ec-ink)}
.exchange-center .nd-body p{margin:0 0 16px}
.exchange-center .nd-body p:has(>br:only-child){height:6px;line-height:6px;margin:0}
.exchange-center .nd-body h2{font-size:21px;line-height:1.5;margin:28px 0 14px}
.exchange-center .nd-body h3{font-size:18px;line-height:1.5;margin:22px 0 12px}
.exchange-center .nd-body :is(ul,ol){padding-left:23px;margin:12px 0 24px}
.exchange-center .nd-body li{padding-left:3px;margin:9px 0}
.exchange-center .nd-body>:last-child{margin-bottom:0}
.nd-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid var(--ec-line)}
.exchange-center .nd-list-link{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:8px 17px;border:1px solid var(--ec-line);border-radius:5px;font-size:13px;color:var(--ec-ink)}
.exchange-center .nd-list-link:hover{background:var(--ec-hover);border-color:var(--ec-muted)}
.nd-copy-wrap{position:relative}
.exchange-center .nd-copy-wrap .ec-copy{border-color:transparent;font-size:13px;padding:8px 0 8px 12px}
.exchange-center .nd-copy-wrap .ec-copy-status{position:absolute;right:0;top:100%;width:200px;text-align:right;margin:0;min-height:0;font-size:11px}
.nd-related{margin-top:32px}
.exchange-center .nd-related h2{font-size:18px;margin:0 0 16px;line-height:1.5}
.nd-related ul{list-style:none;padding:0;margin:0;border-top:1px solid var(--ec-line)}
.nd-related li{margin:0;padding:0;border-bottom:1px solid var(--ec-line)}
.exchange-center .nd-related a{display:grid;grid-template-columns:minmax(0,1fr) 90px;gap:24px;align-items:center;padding:18px 0;font-size:14px;line-height:1.6;color:var(--ec-ink)}
.nd-related a>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.nd-related time{font-size:12px;text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--ec-muted)}
.exchange-center .nd-related a:hover{color:var(--ec-accent);background:var(--ec-hover)}
@media(max-width:760px){
 .exchange-center .hc-self-service>.hc-questions{margin-top:32px}
 .exchange-center .hc-self-service #ec-quick-title{font-size:20px}
 .exchange-center .hc-self-service .ec-section-heading{margin-bottom:18px}
 .exchange-center .nd-page{padding-top:22px}
 .nd-navigation{padding-bottom:21px}
 .exchange-center .nd-navigation .ec-back-link{font-size:13px}
 .exchange-center .nd-header h1{font-size:23px;line-height:1.5}
 .nd-header{padding-bottom:21px}
 .nd-meta{font-size:11px;gap:8px 14px;margin-top:14px}
 .exchange-center .nd-body{font-size:15px;line-height:1.85;padding:24px 0 28px}
 .exchange-center .nd-body h2{font-size:19px;margin-top:24px}
 .exchange-center .nd-body h3{font-size:17px}
 .exchange-center .nd-body :is(ul,ol){padding-left:20px}
 .nd-footer{gap:12px;padding:17px 0}
 .exchange-center .nd-list-link,.exchange-center .nd-copy-wrap .ec-copy{font-size:12px}
 .exchange-center .nd-list-link{padding:8px 12px}
 .nd-related{margin-top:26px}
 .exchange-center .nd-related h2{font-size:17px}
 .exchange-center .nd-related a{font-size:13px;grid-template-columns:minmax(0,1fr) 72px;gap:14px;padding:17px 0}
 .nd-related time{font-size:10px}
}

/* Followup: centered search without visible hero headings, colored pagination. */
.exchange-center .ec-visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.exchange-center .hc-search-banner{padding:38px 0}
.exchange-center .hc-search-banner .ec-search{width:min(760px,100%);height:58px;margin:0 auto;padding-left:21px;gap:14px;border-radius:7px}
.exchange-center .hc-search-banner .ec-search input[type=search]{font-size:16px}
.exchange-center .hc-search-banner .ec-search button{height:38px;width:38px;flex-basis:38px}
:root[data-member-shell] .public-info-main.exchange-center{--ec-page-bg:#e7f3f5;--ec-page-ink:#116573;--ec-page-line:#a9cbd1}
:root[data-member-shell][data-theme=dark] .public-info-main.exchange-center{--ec-page-bg:#16333b;--ec-page-ink:#9cdae5;--ec-page-line:#37646d}
.exchange-center .ec-pagination a[aria-current=page],.exchange-center .ec-pagination a[aria-current=page]:hover{background:var(--ec-page-bg)!important;color:var(--ec-page-ink)!important;border:1px solid var(--ec-page-line);font-weight:600}
.exchange-center .ec-pagination a:not([aria-current=page]):hover{background:var(--ec-page-bg);color:var(--ec-page-ink);border-color:var(--ec-page-line)}
.exchange-center .nd-header h1{font-size:32px}
.exchange-center .nd-body{font-size:17px}
@media(max-width:760px){.exchange-center .hc-search-banner{padding:26px 0}.exchange-center .hc-search-banner .ec-search{height:54px;padding-left:15px;gap:10px}.exchange-center .hc-search-banner .ec-search input[type=search]{font-size:15px}.exchange-center .nd-header h1{font-size:24px}.exchange-center .nd-body{font-size:16px}}

/* Center FAQ headings; keep the count separate on small screens. */
.exchange-center .hc-self-service .hc-heading{position:relative;display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;gap:8px}
.exchange-center .hc-self-service .hc-heading h2{text-align:center}
.exchange-center .hc-self-service .hc-heading>span{position:absolute;right:0;top:12px}
@media(max-width:760px){.exchange-center .hc-self-service .hc-heading>span{position:static;justify-self:end}.exchange-center .hc-self-service .hc-heading h2{width:100%}}