:root{--bg:#f5f7fa;--surface:#fff;--surface-2:#eef2f7;--line:#e1e7ef;--ink:#0b1626;--ink-2:#3a4a5f;--mute:#57677b;--brand:#2153e8;--brand-hover:#1a44c4;--brand-tint:#eaf0fe;--ok:#0b7166;--ok-tint:#e3f4f1;--zero:#5f6e82;--zero-tint:#eef1f5;--warn:#9a5b06;--warn-tint:#fbf2e2;--plate:#fff;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0a101b;--surface:#101827;--surface-2:#162133;--line:#22304a;--ink:#e8eef6;--ink-2:#b4c1d2;--mute:#97a6ba;--brand:#7aa2ff;--brand-hover:#9bb9ff;--brand-tint:#172a4f;--ok:#45d0be;--ok-tint:#0e2b2a;--zero:#98a6b8;--zero-tint:#1a2436;--warn:#f1b65e;--warn-tint:#2a2112;color-scheme:dark}}:root[data-theme=dark]{--bg:#0a101b;--surface:#101827;--surface-2:#162133;--line:#22304a;--ink:#e8eef6;--ink-2:#b4c1d2;--mute:#97a6ba;--brand:#7aa2ff;--brand-hover:#9bb9ff;--brand-tint:#172a4f;--ok:#45d0be;--ok-tint:#0e2b2a;--zero:#98a6b8;--zero-tint:#1a2436;--warn:#f1b65e;--warn-tint:#2a2112;color-scheme:dark}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-variant-numeric:tabular-nums;margin:0;font:15px/1.6 Inter,system-ui,-apple-system,Segoe UI,sans-serif}html[lang=zh-Hans] body{font-family:Inter,PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;line-height:1.75}a{color:var(--brand);text-underline-offset:3px}a:hover{color:var(--brand-hover)}button,input{font:inherit}button,.button{cursor:pointer;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:9px 14px;font-weight:600;text-decoration:none;display:inline-flex}button:hover,.button:hover{background:var(--surface-2)}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.wrap{width:100%;max-width:1360px;margin:auto;padding:0 32px}.nav{background:var(--surface);border-bottom:1px solid var(--line)}.nav-grid{grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;min-height:60px;display:grid}.wordmark{color:var(--ink);letter-spacing:-.02em;white-space:nowrap;font-size:18px;font-weight:750;text-decoration:none}.wordmark span{color:var(--brand)}nav{gap:24px;display:flex}nav a{color:var(--ink-2);font-size:13px;text-decoration:none}nav a[aria-current=page]{color:var(--brand)}.nav-tools{justify-self:end;align-items:center;gap:14px;font-size:13px;display:flex}.nav-tools button{padding:3px 10px}.skip{position:absolute;left:-9999px}.skip:focus{z-index:10;background:var(--surface);padding:12px;top:12px;left:16px}h1{letter-spacing:-.02em;margin:10px 0 16px;font-size:34px;font-weight:750;line-height:1.15}h2{margin:0 0 16px;font-size:20px;line-height:1.3}h3{margin:0 0 12px;font-size:16px;line-height:1.35}p{margin:0 0 16px}small,.small{color:var(--mute);font-size:13px}.section{padding:28px 0}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;min-width:0;padding:20px}.prose{color:var(--ink-2)}.prose h2,.prose h3{color:var(--ink);margin-top:28px}.prose p:last-child{margin-bottom:0}.footer-grid{grid-template-columns:repeat(4,1fr);gap:24px;padding-top:32px;padding-bottom:32px;display:grid}footer{background:var(--surface);border-top:1px solid var(--line);margin-top:32px}footer a,footer button{color:var(--ink-2);margin-top:8px;font-size:13px;display:block}footer strong{font-size:13px}footer button{border:0;padding:0;font-weight:400}footer .wordmark{font-size:18px}footer p{margin:12px 0 8px}@media (width<=1100px){nav{gap:13px}}@media (width<=1023px){.wrap{padding-left:20px;padding-right:20px}.nav-grid{grid-template-columns:1fr auto}.nav nav{flex-wrap:wrap;grid-area:2/1/auto/-1;justify-content:center;padding-bottom:12px}.nav-tools{grid-area:1/2}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=639px){.wrap{padding-left:16px;padding-right:16px}h1{font-size:26px}.section{padding:22px 0}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.nav nav{gap:10px 16px}.nav nav a{font-size:12px}.nav-tools{gap:10px}.card{padding:18px}}.grid{align-items:stretch;gap:24px;display:grid}.two{grid-template-columns:repeat(2,minmax(0,1fr))}.three{grid-template-columns:repeat(3,minmax(0,1fr))}.four{grid-template-columns:repeat(4,minmax(0,1fr))}.grid>*{min-width:0}.hero{padding-top:40px;padding-bottom:32px}.hero-copy{flex-direction:column;justify-content:center;display:flex}.hero-copy .pill{align-self:flex-start}.answer{color:var(--ink-2);max-width:85ch}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--mute);margin-bottom:14px;font-size:12px;font-weight:600}.summary-card{flex-direction:column;justify-content:center;display:flex}.summary-row{border-top:1px solid var(--line);justify-content:space-between;gap:20px;padding:16px 0;display:flex}.summary-row div{gap:2px;display:grid}.summary-row strong{align-self:center;font-size:28px}.summary-row a{font-weight:600;text-decoration:none}.text-link{font-size:13px;font-weight:600}.pill{border-radius:999px;padding:4px 9px;font-size:12px;font-weight:600;line-height:1.4;display:inline-flex}.ok{color:var(--ok);background:var(--ok-tint)}.zero,.neutral{color:var(--zero);background:var(--zero-tint)}.warn{color:var(--warn);background:var(--warn-tint)}.stats{margin-bottom:4px}.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;flex-direction:column;gap:7px;padding:18px 20px;display:flex}.stat strong{overflow-wrap:anywhere;font-size:26px;font-weight:600;line-height:1.3}.stat small{font-size:12px;line-height:1.5}.stat>small:last-child{margin-top:auto}.source-date{color:var(--mute);font-size:12px;display:block}.section-head{justify-content:space-between;align-items:baseline;gap:16px;display:flex}.section-head>a{font-size:13px}.exchange-grid{grid-auto-rows:1fr}.exchange-card{flex-direction:column;display:flex}.card-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;display:flex}.plate{color:#57677b;background:#fff;border:1px solid #e1e7ef;border-radius:8px;justify-content:center;align-items:center;min-width:82px;max-width:160px;height:48px;padding:10px 12px;display:inline-flex}.plate img{object-fit:contain;width:auto;max-width:128px;height:28px}.text-logo{white-space:nowrap;font-size:14px;font-weight:750}.exchange-card h3>a{color:var(--ink);text-decoration:none}.card-benefit{color:var(--ink-2);flex:1;min-height:64px;font-size:13px}.card-benefit p{margin:0 0 6px}.fee-mini{border-top:1px solid var(--line);grid-template-columns:1fr 1fr;gap:8px;padding:14px 0;display:grid}.fee-mini small{font-size:11px;display:block}.fee-mini strong{font-size:14px;font-weight:600;display:block}.card-bottom{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:14px;display:flex}code{overflow-wrap:anywhere;font-family:ui-monospace,Consolas,monospace}.card-bottom code{background:var(--surface-2);border-radius:4px;padding:4px 6px;font-size:12px}.card-bottom .button{padding:7px 10px;font-size:12px}.security-card{color:var(--ink);text-decoration:none}.security-card p{color:var(--ink-2);margin:0;font-size:14px}.table-scroll{border:1px solid var(--line);background:var(--surface);border-radius:12px;width:100%;max-width:100%;overflow-x:auto}table{border-collapse:collapse;table-layout:fixed;width:100%;min-width:620px;font-size:14px}caption{text-align:left;color:var(--mute);padding:12px 16px;font-size:13px}thead{background:var(--surface-2)}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere;padding:12px 16px}th{font-size:12.5px;font-weight:600}td{color:var(--ink-2)}tr:last-child>td,tr:last-child>th{border-bottom:0}table th:first-child{width:18%}table small{margin-top:5px;font-size:12px;display:block}table p{margin:0;font-size:12px}table .plate{min-width:0;height:36px;margin-bottom:7px;padding:5px 8px}table .plate img{max-width:85px;height:22px}table .text-logo{font-size:12px}.number{text-align:right;font-variant-numeric:tabular-nums}.entity-head{grid-template-columns:7fr 5fr;align-items:stretch;gap:24px;padding-top:36px;display:grid}.entity-head>div{flex-direction:column;justify-content:center;display:flex}.entity-head .plate{align-self:flex-start}.refbox{border:1.5px solid var(--brand);background:var(--surface);border-radius:16px;overflow:hidden}.ref-label{background:var(--brand-tint);align-items:center;gap:12px;padding:14px 20px;font-size:13px;font-weight:600;display:flex}.ref-label .plate{min-width:65px;height:36px;padding:6px 8px}.ref-body{padding:20px}.big-code{letter-spacing:.06em;margin-bottom:16px;font-size:30px;line-height:1.4;display:block}.actions{grid-template-columns:1fr 2fr;gap:10px;display:grid}.primary{background:var(--brand);border-color:var(--brand);color:#fff}.primary:hover{background:var(--brand-hover);color:#fff}:root[data-theme=dark] .primary{color:#0b1626}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .primary{color:#0b1626}}.benefit-list{margin-top:16px}.benefit{border-radius:8px;margin-bottom:8px;padding:9px 12px;font-size:13px}.disclosure{border-top:1px solid var(--line);color:var(--mute);margin:16px 0 10px;padding-top:12px;font-size:12.5px;line-height:1.6}.ref-body .small{margin:0;font-size:12px}.claim{border-bottom:1px solid var(--line);margin-bottom:16px;padding:0 0 16px}.claim p{font-size:14px}.claim h3{font-size:15px}.restriction{background:var(--warn-tint);border:1px solid color-mix(in srgb,var(--warn) 30%,transparent);border-radius:12px;margin:12px 0;padding:24px}.restriction p{font-size:14px}.restriction .small{margin:16px 0 0}.country-codes{color:var(--warn);font-family:ui-monospace,monospace;line-height:1.8}.source-item{border-top:1px solid var(--line);padding-top:16px}.source-item>a{font-size:14px;font-weight:600}.source-item p{color:var(--ink-2);margin:8px 0;font-size:13px}.faq .card p{color:var(--ink-2);font-size:14px}.copy-status{min-height:0;color:var(--ok);font-size:12px;display:block}@media (width<=1023px){.four,.three{grid-template-columns:repeat(2,minmax(0,1fr))}.entity-head{grid-template-columns:1fr}.hero{gap:20px}.stats strong{font-size:24px}.two{gap:20px}.entity-head>div{max-width:80ch}.nav-grid{column-gap:8px}}@media (width<=639px){.two,.three,.four{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.stat{padding:14px}.stat strong{font-size:22px}.hero{padding-top:26px}.card-top{flex-wrap:nowrap}.exchange-grid{grid-auto-rows:auto;gap:16px}.card-benefit{min-height:0}.entity-head{padding-top:24px}.ref-label,.ref-body{padding:16px}.ref-label{flex-wrap:wrap}.actions{grid-template-columns:1fr 2fr}.actions .button,.actions button{padding:9px 8px;font-size:12px}.restriction{padding:18px}.big-code{font-size:27px}.table-scroll table{min-width:680px}.section-head{align-items:flex-start}.section-head a{white-space:nowrap}.exchange-card .card-benefit{min-height:45px}}.table-benefit{margin-bottom:6px;display:block}.table-benefit:last-child{margin-bottom:0}.entity-link{flex-wrap:wrap;align-items:center;gap:8px;text-decoration:none;display:flex}.card-top{min-height:64px}.exchange-card .plate{max-width:120px}.exchange-card .plate img{max-width:96px}.guide-head{grid-template-columns:2fr 1fr;align-items:center;gap:24px;margin-bottom:28px;display:grid}.toc a{margin-top:8px;font-size:13px;display:block}.editorial>p,.editorial>ul,.editorial>ol{max-width:90ch}.editorial>p:first-child{color:var(--ink-2);margin:22px 0 32px;font-size:17px}.editorial>h2{border-top:1px solid var(--line);margin-top:32px;padding-top:18px}.editorial .table-scroll{margin:20px 0}.editorial .faq h3{margin-top:0}.editorial .faq p{margin-bottom:0}@media (width<=639px){.guide-head{grid-template-columns:1fr}.editorial>p:first-child{font-size:15px}}.consent{z-index:20;background:var(--surface);border:1px solid var(--line);border-radius:12px;width:min(410px,100% - 32px);padding:20px;position:fixed;bottom:16px;right:16px;box-shadow:0 1px 2px #0000000a}.consent h2{margin-bottom:8px;font-size:16px}.consent p{color:var(--ink-2);margin-bottom:12px;font-size:13px}.consent-actions{flex-wrap:wrap;gap:8px;display:flex}.consent button{flex:1;padding:8px 12px;font-size:13px}.consent[hidden],[data-consent-details][hidden]{display:none}.consent a{font-size:13px}.fee-sections table{min-width:0}.fee-sections table th:nth-child(2),.fee-sections table th:nth-child(3){width:18%}.fee-sections table th:last-child{width:46%}.fee-sections th,.fee-sections td{padding:12px 10px}@media (width<=1023px){.fee-sections{grid-template-columns:1fr}}@media (width<=639px){.fee-sections table{min-width:620px}}[data-consent-details]{margin-top:16px}[data-consent-details] label{align-items:center;gap:10px;margin-bottom:12px;display:flex}[data-consent-details] input{width:18px;height:18px}[data-consent-details] p{margin-top:12px}.fact-date{color:var(--mute);font-size:11px;display:block}.card-top{grid-template-columns:minmax(0,1fr) auto;display:grid}.card-top .plate{width:100%;min-width:0;max-width:112px;padding:8px}.card-top .plate img{max-width:100%}.card-top .pill{white-space:nowrap}.fact-date{font-weight:400}.fact-date time{white-space:nowrap;display:inline-block}.plate{--lh:26px;box-sizing:border-box;background:#fff;border:1px solid #e1e7ef;border-radius:10px;justify-content:center;align-items:center;width:148px;min-width:0;max-width:none;height:56px;padding:0 14px;display:inline-flex;overflow:hidden}.plate img{height:var(--lh);object-fit:contain;width:auto;max-width:100%;max-height:100%;transition:transform .25s}.plate .text-logo{color:#3a4a5f;letter-spacing:.01em;font-size:15px;font-weight:700}.plate[data-logo=binance]{--lh:24px}.plate[data-logo=bybit]{--lh:27px}.plate[data-logo=okx]{--lh:23px}.plate[data-logo=gate]{--lh:27px}.plate[data-logo=bingx]{--lh:29px}.plate[data-logo=max]{--lh:17px}.plate[data-logo=hyperliquid]{--lh:31px}.entity-head .plate{width:184px;height:68px}.entity-head .plate img{height:calc(var(--lh)*1.22)}.ref-label .plate{width:116px;height:44px;padding:0 10px}.ref-label .plate img{height:calc(var(--lh)*.78)}table .plate{width:108px;height:40px;margin-bottom:6px;padding:0 9px}table .plate img{height:calc(var(--lh)*.72)}.exchange-card{padding-top:0;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s,border-color .2s;position:relative;overflow:hidden}.exchange-card .card-brand{border-bottom:1px solid var(--line);background:linear-gradient(#fff 0%,#f4f7fb 100%);justify-content:center;align-items:center;min-height:96px;margin:0 -18px 16px;padding:20px 18px;display:flex;position:relative}.exchange-card .card-brand .plate{background:0 0;border-color:#0000;width:156px;max-width:none;height:56px}.exchange-card .card-brand .pill{position:absolute;top:12px;right:12px}.exchange-card h3 a:after{content:"";z-index:0;border-radius:12px;position:absolute;inset:0}.exchange-card .card-bottom{z-index:1;position:relative}.exchange-card:hover,.exchange-card:focus-within{border-color:color-mix(in srgb,var(--brand) 45%,var(--line));transform:translateY(-4px);box-shadow:0 16px 32px -18px #0b162659}.exchange-card:hover .plate img{transform:scale(1.06)}.card-cta .go,.button .go{transition:transform .2s;display:inline-block}.card-cta:hover .go,.exchange-card:hover .card-cta .go{transform:translate(4px)}.button.primary{isolation:isolate;position:relative;overflow:hidden}.button.primary:after{content:"";z-index:-1;background:linear-gradient(110deg,#0000 30%,#ffffff47 50%,#0000 70%);transition:transform .6s;position:absolute;inset:0;transform:translate(-120%)}.button.primary:hover:after,.exchange-card:hover .button.primary:after{transform:translate(120%)}.pill.ok:before{content:"";vertical-align:1px;background:currentColor;border-radius:50%;width:6px;height:6px;margin-right:6px;animation:2.4s ease-in-out infinite cfhPulse;display:inline-block}@keyframes cfhPulse{0%,to{box-shadow:0 0 0 0 color-mix(in srgb,currentColor 45%,transparent)}50%{box-shadow:0 0 0 5px #0000}}.refbox{animation:3s ease-in-out 1s 2 cfhGlow}@keyframes cfhGlow{0%,to{box-shadow:0 0 #2153e800}50%{box-shadow:0 0 0 6px #2153e81f}}@keyframes cfhRise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@supports (animation-timeline:view()){.card,.stats>*{animation:linear both cfhRise view();animation-range:entry cover 18%}}:root[data-theme=dark] .exchange-card .card-brand{background:linear-gradient(#f7f9fc 0%,#e9eef5 100%);border-bottom-color:#22304a}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .exchange-card .card-brand{background:linear-gradient(#f7f9fc 0%,#e9eef5 100%);border-bottom-color:#22304a}}@media (width<=639px){.entity-head .plate{width:156px;height:60px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.service-ctas{margin:32px 0}.service-cta .actions{grid-template-columns:1fr}.service-cta .ref-body p:first-child{margin-top:0}.card-availability{border:1px solid var(--line);border-left:4px solid var(--warn);background:var(--warn-tint);color:var(--ink);border-radius:10px;max-width:85ch;padding:12px 16px;font-size:14px;line-height:1.6}.card-cta .actions{grid-template-columns:1fr}@media (width<=639px){.table-scroll table.stackable{table-layout:auto;min-width:0}.table-scroll table.stackable thead{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.table-scroll table.stackable tbody,.table-scroll table.stackable tr{display:block}.table-scroll table.stackable tr{border-bottom:1px solid var(--line);padding:14px 16px}.table-scroll table.stackable tr:last-child{border-bottom:0}.table-scroll table.stackable th,.table-scroll table.stackable td{text-align:left;border:0;width:auto;padding:0;display:block}.table-scroll table.stackable th{color:var(--ink);margin-bottom:8px;font-size:15px}.table-scroll table.stackable th small{margin-top:2px}.table-scroll table.stackable td{grid-template-columns:minmax(92px,34%) minmax(0,1fr);align-items:start;gap:4px 12px;padding:6px 0;font-size:14px;display:grid}.table-scroll table.stackable td>*{grid-column:2}.table-scroll table.stackable td:before{content:attr(data-label);color:var(--mute);grid-area:1/1;padding-top:2px;font-size:12px;font-weight:600}.table-scroll table.stackable td.number{text-align:left}.table-scroll table.stackable .plate{margin-bottom:6px}.table-scroll table.stackable .entity-link{flex-direction:column;align-items:flex-start;gap:4px;display:flex}.fee-sections table.stackable{min-width:0}.card-bottom .button{padding:10px 12px}.actions .button,.actions button{padding:11px 8px}.nav nav a{white-space:nowrap;align-items:center;min-height:44px;padding:0 2px;display:inline-flex}.nav-tools a,.nav-tools button{align-items:center;min-height:44px;display:inline-flex}.nav-tools button{justify-content:center;min-width:44px}.actions{grid-template-columns:auto minmax(0,1fr)}.actions .button,.actions button,.card-bottom .button{min-height:44px}.consent{max-height:calc(100dvh - 32px);overflow-y:auto}.consent-actions button,[data-consent-save]{min-height:44px}footer a,footer button{align-items:center;min-height:44px;margin-top:0;display:flex}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=390px){.actions{grid-template-columns:1fr}}@media (width<=639px){.table-scroll table.stackable td:has(p),.table-scroll table.stackable td:not(.number):has(a+.source-date){grid-template-columns:1fr}.table-scroll table.stackable td:has(p):before,.table-scroll table.stackable td:not(.number):has(a+.source-date):before{grid-column:1}.table-scroll table.stackable td>p,.fee-sections table.stackable p,.fee-sections table.stackable td{font-size:14px}}