:root{--cp-white:#ffffff;--cp-mist:#f4f8f8;--cp-teal:#00707a;--cp-teal-dark:#00545c;--cp-teal-soft:#e2f1f1;--cp-coal:#2b2f33;--cp-mute:#5d6469;--cp-rule:#d5dcdf;--cp-red:#b3261e;--cp-type:"PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;--cp-mono:"SFMono-Regular", Consolas, "Liberation Mono", monospace}body{background:var(--cp-white);color:var(--cp-coal);font-family:var(--cp-type);font-size:16px;line-height:1.8}a{color:var(--cp-teal)}:focus-visible{outline:2px solid var(--cp-teal);outline-offset:3px}.cp-kicker{color:var(--cp-teal);font-size:14px;font-weight:600;letter-spacing:.16em}.cp-sub{margin-top:4px;color:var(--cp-mute)}.cp-empty{padding:14px 16px;color:var(--cp-mute);background:var(--cp-mist)}.cp-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}.cp-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border:1.5px solid var(--cp-teal);border-radius:999px;font-size:16px;font-weight:600;text-decoration:none;white-space:nowrap}.cp-btn-sm{min-height:44px;padding:0 18px;font-size:15px}.cp-btn-teal{background:var(--cp-teal);color:var(--cp-white)}.cp-btn-teal:hover{background:var(--cp-teal-dark)}.cp-btn-line{background:var(--cp-white);color:var(--cp-teal)}.cp-btn-line:hover{background:var(--cp-teal-soft)}.cp-link{display:inline-flex;align-items:center;min-height:44px;margin-top:12px;font-weight:600}.cp-link::after{content:"›";margin-left:6px;font-size:20px;line-height:1}.cp-float{position:sticky;top:0;z-index:50;padding:12px 16px 0}.cp-pill{display:flex;align-items:center;gap:18px;max-width:1100px;min-height:62px;margin:0 auto;padding:0 10px 0 20px;background:var(--cp-white);border:1.5px solid var(--cp-teal);border-radius:999px;box-shadow:0 8px 22px rgba(0, 72, 80, .1)}.cp-brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;color:var(--cp-coal);font-size:18px;font-weight:700;text-decoration:none}.cp-dot{display:inline-grid;place-items:center;width:30px;height:30px;background:linear-gradient(90deg, var(--cp-teal) 50%, var(--cp-teal-soft) 50%);border:1.5px solid var(--cp-teal);border-radius:999px;color:var(--cp-white);font-size:13px}.cp-tabs{display:flex;flex:1;justify-content:center;gap:4px}.cp-tab{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;color:var(--cp-coal);font-size:15px;text-decoration:none}.cp-tab:hover,.cp-tab[aria-current]{background:var(--cp-teal-soft);color:var(--cp-teal-dark)}.cp-pill-end{display:flex;align-items:center;gap:6px;margin-left:auto}.cp-more{display:none;position:relative}.cp-notice{display:flex;gap:6px;max-width:820px;margin:24px auto 0;padding:12px 18px;background:var(--cp-mist);border-radius:10px}.cp-notice b{flex:none;color:var(--cp-teal-dark)}.cp-col{max-width:1160px;margin-right:auto;margin-left:auto;padding-right:24px;padding-left:24px}.cp-col-wide{max-width:1160px}.cp-cover{max-width:1160px;margin:0 auto;padding:72px 24px 34px;text-align:center}.cp-cover h1{margin-top:10px;font-size:36px;line-height:1.3}.cp-claim{margin-top:10px;color:var(--cp-teal);font-size:22px;font-weight:600}.cp-lede{margin-top:14px;color:var(--cp-mute);font-size:17px}.cp-find{margin-top:40px;overflow:hidden;text-align:left;border:1.5px solid var(--cp-teal);border-radius:16px}.cp-find-bar{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;padding:12px 22px;background:var(--cp-teal-soft)}.cp-find-bar b{color:var(--cp-teal-dark)}.cp-find-bar span{color:var(--cp-mute);font-size:14px}.cp-find ul{margin:0;padding:0;list-style:none}.cp-find li + li{border-top:1px solid var(--cp-rule)}.cp-find a{display:grid;grid-template-columns:120px minmax(0, 1fr);gap:16px;align-items:center;min-height:52px;padding:6px 22px;color:var(--cp-coal);text-decoration:none}.cp-find a:hover{background:var(--cp-mist)}.cp-find a b{color:var(--cp-teal)}.cp-find a span{color:var(--cp-mute);font-size:14px}.cp-facts{display:grid;grid-template-columns:repeat(auto-fit, minmax(min(200px, 100%), 1fr));gap:18px;margin-top:6px}.cp-facts > div{padding-left:14px;border-left:3px solid var(--cp-teal)}.cp-facts dd{color:var(--cp-mute)}.cp-sec{padding-top:42px;padding-bottom:8px;margin-top:36px;border-top:3px double var(--cp-rule)}.cp-h{color:var(--cp-teal-dark);font-size:22px;letter-spacing:.04em}.cp-h span{color:var(--cp-teal)}.cp-sec-title{margin-top:8px;font-size:20px}.cp-sec .v4-rich{margin-top:8px}.cp-sec .v4-rich p + p{margin-top:10px}.cp-glossary{margin:12px 0 0}.cp-glossary > div{display:grid;grid-template-columns:140px minmax(0, 1fr);gap:18px;padding:14px 10px;border-bottom:1px dotted var(--cp-rule);scroll-margin-top:100px}.cp-glossary > div:target{background:var(--cp-teal-soft)}.cp-glossary dt{font-weight:700}.cp-glossary dd{margin:0;color:var(--cp-mute)}.cp-usage{margin:14px 0 0;padding:0;list-style:none;counter-reset:cp-step}.cp-usage li{position:relative;display:grid;padding:10px 0 10px 48px;counter-increment:cp-step}.cp-usage li::before{content:counter(cp-step);position:absolute;top:12px;left:0;display:grid;place-items:center;width:30px;height:30px;border:1.5px solid var(--cp-teal);border-radius:50%;color:var(--cp-teal);font-size:15px;font-weight:700}.cp-usage li + li::after{content:"";position:absolute;top:-12px;left:15px;height:22px;border-left:1.5px dotted var(--cp-teal)}.cp-usage span{color:var(--cp-mute);font-size:15px}.cp-sec-warn{padding-bottom:0}.cp-notes{margin:14px 0 0;padding:16px 20px 16px 40px;background:#fbf1f0;border-left:4px solid var(--cp-red)}.cp-notes li + li{margin-top:6px}.cp-q{border-bottom:1px solid var(--cp-rule)}.cp-q summary{display:flex;align-items:center;gap:12px;min-height:56px;font-weight:600;cursor:pointer}.cp-q summary::before{content:"问";display:grid;flex:none;place-items:center;width:26px;height:26px;background:var(--cp-teal-soft);border-radius:6px;color:var(--cp-teal-dark);font-size:13px}.cp-q p{padding:0 0 16px 38px;color:var(--cp-mute)}.cp-end{margin-top:46px;padding-top:46px;padding-bottom:70px;text-align:center;border-top:3px double var(--cp-rule)}.cp-end h2{font-size:28px}.cp-end > p:not(.cp-row){margin-top:6px;color:var(--cp-mute)}.cp-end .cp-revised{margin-top:32px;font-size:13px}.cp-sheet{width:100%;margin-top:16px;border-collapse:collapse;border-top:2px solid var(--cp-teal);border-bottom:2px solid var(--cp-teal)}.cp-sheet thead th{padding:10px 12px;color:var(--cp-teal-dark);font-size:14px;text-align:left;border-bottom:1px solid var(--cp-teal)}.cp-sheet tbody :is(th,td){padding:14px 12px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--cp-rule)}.cp-sheet tbody tr:last-child :is(th,td){border-bottom:0}.cp-code{display:inline-block;min-height:22px;color:var(--cp-mute);font-family:var(--cp-mono);font-size:13px}.cp-sheet tbody th em{display:inline-block;margin:0 0 0 8px;padding:0 8px;background:var(--cp-teal);border-radius:999px;color:var(--cp-white);font-size:12px;font-style:normal}.cp-sheet tbody th b{display:block;font-size:17px}.cp-fee{font-size:19px;font-weight:700}.cp-spec-note{max-width:230px;color:var(--cp-mute);font-size:14px}.cp-spec-go{text-align:right}.cp-spec-common{background:var(--cp-teal-soft)}.cp-tip{margin-top:12px;color:var(--cp-mute);font-size:14px}.cp-chart{width:100%;margin-top:16px;border-collapse:collapse}.cp-chart thead th{padding:8px 12px;color:var(--cp-teal-dark);font-size:14px;text-align:left;border-bottom:2px solid var(--cp-teal)}.cp-chart tbody :is(th,td){padding:12px;text-align:left;border-bottom:1px solid var(--cp-rule)}.cp-chart tbody th{font-size:17px;white-space:nowrap}.cp-chart td:nth-child(2){color:var(--cp-mute)}.cp-chart td:last-child{text-align:right}.cp-chart-icon{display:inline-grid;place-items:center;width:28px;height:28px;margin-right:10px;color:var(--cp-teal);vertical-align:-8px}.cp-chart-icon svg{width:22px;height:22px}.cp-chart em{display:none;margin-left:8px;padding:0 8px;background:var(--cp-teal);border-radius:999px;color:var(--cp-white);font-size:12px;font-style:normal;vertical-align:2px}.cp-chart tr[data-v4-current]{background:var(--cp-teal-soft)}.cp-chart tr[data-v4-current] em{display:inline-block}.cp-chart tr[data-v4-current] .cp-btn{background:var(--cp-teal);color:var(--cp-white)}.cp-sheetpage{display:grid;grid-template-columns:290px minmax(0, 1fr);gap:56px;align-items:start;max-width:1160px;margin:0 auto;padding:44px 24px 90px}.cp-titlecol{position:sticky;top:96px}.cp-crumbs{display:flex;flex-wrap:wrap;gap:6px;color:var(--cp-mute);font-size:14px}.cp-crumbs a,.cp-crumbs span{display:inline-flex;align-items:center;min-height:44px}.cp-titlecol h1{padding-bottom:12px;font-size:32px;line-height:1.35;border-bottom:3px solid var(--cp-teal)}.cp-titlecol .cp-sub{margin-top:12px}.cp-jumps{margin-top:22px;padding-top:14px;border-top:1px solid var(--cp-rule)}.cp-jumps p{color:var(--cp-mute);font-size:13px;letter-spacing:.14em}.cp-jumps a{display:flex;align-items:center;min-height:40px;color:var(--cp-coal);font-size:15px;text-decoration:none}.cp-jumps a:hover{color:var(--cp-teal)}.cp-jumps .cp-jump-group{color:var(--cp-teal-dark);font-weight:700}.cp-part{padding:22px 0;border-bottom:1px solid var(--cp-rule)}.cp-part > :is(h2,h3,h4){margin-bottom:8px;color:var(--cp-teal-dark);font-size:21px;line-height:1.45}.cp-part > :is(h2,h3,h4) span{color:var(--cp-teal)}.cp-part-group{padding-top:30px;border-bottom:3px double var(--cp-rule)}.cp-part-group > h2{font-size:24px}.cp-part-sub{padding-left:22px}.cp-part-sub > :is(h3,h4){color:var(--cp-coal);font-size:18px}.cp-part-lead{padding-top:0}.cp-part .v4-rich :is(p,ul,ol) + :is(p,ul,ol){margin-top:10px}.cp-usage-plain li::after{display:none}.cp-see{margin-top:40px}.cp-see h2{font-size:17px}.cp-see p{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.cp-gate{display:grid;align-content:center;justify-items:center;gap:16px;min-height:70vh;padding:50px 20px}.cp-gate-card{width:min(560px, 100%);padding:32px 30px;text-align:center;border:1px solid var(--cp-rule);border-top:6px solid var(--cp-teal);border-radius:4px}.cp-gate-card h1{margin-top:6px;font-size:27px}.cp-gate-card h1 span{color:var(--cp-teal)}.cp-gate-to{display:grid;margin-top:14px;padding:10px 0;overflow-wrap:anywhere;border-top:1px dotted var(--cp-rule);border-bottom:1px dotted var(--cp-rule)}.cp-gate-to span{color:var(--cp-mute);font-size:13px}.cp-dose{display:grid;justify-items:center;gap:10px;margin-top:18px;--v4-bar-h:6px;--v4-bar-track:var(--cp-teal-soft);--v4-bar-fill:var(--cp-teal)}.cp-foot{padding:30px 24px 26px;background:var(--cp-coal);color:var(--cp-white)}.cp-foot-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 34px;max-width:1100px;margin:0 auto}.cp-foot-brand{color:var(--cp-white)}.cp-foot-brand .cp-dot{background:linear-gradient(90deg, #4fb3ba 50%, var(--cp-coal) 50%);border-color:#4fb3ba}.cp-foot-nav{display:flex;flex:1;flex-wrap:wrap;gap:0 22px}.cp-foot-a{color:var(--cp-white);text-decoration:none}.cp-foot-a:hover{text-decoration:underline}.cp-foot-keys,.cp-foot-friends{display:flex;flex-wrap:wrap;align-items:center;gap:0 18px}.cp-foot-keys a,.cp-foot-friends a{display:inline-flex;align-items:center;min-height:44px}.cp-foot-friends{max-width:1100px;margin:4px auto 0;color:#b9c1c6;font-size:14px}.cp-foot-small{display:grid;gap:4px;max-width:1100px;margin:16px auto 0;padding-top:16px;color:#b9c1c6;font-size:14px;border-top:1px solid rgba(255, 255, 255, .18)}.cp-foot-small a{color:var(--cp-white)}.cp-foot-id{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 20px;margin-top:8px}@media (max-width: 960px){.cp-tabs,.cp-tab-sign{display:none}.cp-more{display:block}.cp-more summary{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:1.5px solid var(--cp-teal);border-radius:999px;color:var(--cp-teal-dark);font-weight:600;cursor:pointer;list-style:none}.cp-more summary::-webkit-details-marker{display:none}.cp-more[open] summary{background:var(--cp-teal-soft)}.cp-more-card{position:absolute;top:calc(100% + 14px);right:0;display:grid;width:220px;padding:10px;background:var(--cp-white);border:1.5px solid var(--cp-teal);border-radius:18px;box-shadow:0 12px 28px rgba(0, 72, 80, .14)}.cp-sheetpage{grid-template-columns:minmax(0, 1fr);gap:18px}.cp-titlecol{position:static}.cp-sheet thead{display:none}.cp-sheet,.cp-sheet tbody,.cp-sheet tr,.cp-sheet tbody th,.cp-sheet td{display:block}.cp-sheet{border:0}.cp-sheet tr{margin-bottom:12px;padding:4px 16px 12px;border:1.5px solid var(--cp-teal);border-radius:14px}.cp-sheet tbody :is(th,td){padding:8px 0}.cp-sheet tbody tr:last-child :is(th,td){border-bottom:1px solid var(--cp-rule)}.cp-sheet td[data-k]::before{content:attr(data-k);display:block;color:var(--cp-mute);font-size:13px}.cp-spec-note{max-width:none}.cp-sheet .cp-spec-go{text-align:left;border-bottom:0 !important}.cp-spec-go .cp-btn{width:100%}}@media (max-width: 640px){.cp-float{padding:8px 8px 0}.cp-pill{gap:8px;min-height:56px;padding:0 6px 0 12px}.cp-brand{font-size:16px}.cp-brand span{overflow:hidden;max-width:8em;text-overflow:ellipsis;white-space:nowrap}.cp-pill-end .cp-btn-sm{padding:0 14px}.cp-more summary{padding:0 12px}.cp-notice{margin:16px 12px 0}.cp-cover{padding:44px 16px 24px}.cp-cover h1,.cp-titlecol h1{font-size:28px}.cp-claim{font-size:19px}.cp-col{padding-right:16px;padding-left:16px}.cp-find a{grid-template-columns:minmax(0, 1fr);gap:0;padding:10px 18px}.cp-glossary > div{grid-template-columns:minmax(0, 1fr);gap:4px}.cp-chart thead{display:none}.cp-chart,.cp-chart tbody{display:block}.cp-chart tr{display:grid;grid-template-columns:minmax(0, 1fr) auto;align-items:center;padding:10px 12px;border-bottom:1px solid var(--cp-rule)}.cp-chart tbody :is(th,td){padding:2px 0;border:0}.cp-chart td:nth-child(2){grid-row:2;font-size:14px}.cp-chart td:last-child{grid-column:2;grid-row:1 / span 2}.cp-chart tbody th{white-space:normal}.cp-sheetpage{padding:28px 16px 70px}.cp-part-sub{padding-left:12px}.cp-foot{padding:26px 16px 22px}.cp-foot-row{display:grid;gap:8px}.cp-foot-nav{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}}.cp-sheet td[data-metric="value"]::before{font-size:20px;line-height:1.3}:root{--v4-masthead-width:min(1112px, calc(100% - 48px))}@media (max-width: 640px){:root{--v4-masthead-width:min(1112px, calc(100% - 32px))}}.v4-capsule .cp-float .cp-pill,.v4-capsule [data-v4-primary-nav]{width:var(--v4-masthead-width);max-width:none;margin-inline:auto}.v4-capsule [data-v4-primary-nav]{padding-inline:0}.v4-capsule .cp-float{padding-inline:0}.v4-capsule{--v4-notice-bg:rgb(244, 248, 248);--v4-notice-ink:rgb(43, 47, 51)}