:root{--ink:#101c35;--muted:#61708d;--line:#e4eaf4;--blue:#3968f4;--cyan:#16b9b0;--navy:#071226;--panel:#fff;--soft:#f4f7fc;--green:#128265;--orange:#b96d12;--shadow:0 22px 60px rgba(18,43,91,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:92px}body{margin:0;color:var(--ink);background:#fff;font:15px/1.75 "Microsoft YaHei","PingFang SC",Arial,sans-serif}a{color:inherit}button,input{font:inherit}.help-shell{width:min(1180px,calc(100% - 40px));margin:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;z-index:100;top:8px;left:8px;padding:10px 14px;border-radius:8px;background:#fff;color:var(--blue);transform:translateY(-150%)}.skip-link:focus{transform:none}
.help-header{position:sticky;z-index:50;top:0;height:72px;border-bottom:1px solid rgba(255,255,255,.1);background:rgba(7,18,38,.96);backdrop-filter:blur(16px);color:#fff}.help-nav{height:100%;display:flex;align-items:center;gap:36px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none}.brand-mark{width:38px;height:38px;object-fit:contain;border-radius:10px}.brand span{display:grid;line-height:1.15}.brand b{font-size:17px}.brand small{margin-top:4px;color:#8296bb;font-size:9px;letter-spacing:1.5px}.help-nav nav{display:flex;align-items:center;gap:24px;margin-left:auto}.help-nav nav a{color:#b8c6df;text-decoration:none;font-size:13px}.help-nav nav a:hover{color:#fff}.help-login{display:inline-flex;align-items:center;gap:8px;padding:10px 15px;border:1px solid rgba(255,255,255,.22);border-radius:8px;text-decoration:none}.help-login:hover{background:#fff;color:var(--navy)}
.help-hero{position:relative;overflow:hidden;padding:76px 0 70px;background:radial-gradient(circle at 13% 15%,rgba(57,104,244,.25),transparent 32%),radial-gradient(circle at 86% 25%,rgba(22,185,176,.16),transparent 29%),linear-gradient(135deg,#071226,#0c1c39 62%,#102951);color:#fff}.help-hero:before{content:"";position:absolute;inset:0;opacity:.16;background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(to bottom,#000,transparent)}.help-hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr);gap:70px;align-items:center}.help-kicker{display:flex;align-items:center;gap:9px;margin:0 0 18px;color:#a9bce2;font-size:12px;letter-spacing:1.4px}.help-kicker span{width:25px;height:2px;background:var(--cyan)}.help-hero h1{margin:0;font-size:clamp(36px,5vw,60px);line-height:1.15;letter-spacing:-1.5px}.help-hero h1 em{color:#83e4dc;font-style:normal}.help-lead{max-width:760px;margin:24px 0 27px;color:#c2cee5;font-size:16px}.help-search{display:flex;align-items:center;max-width:690px;height:58px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:#fff;color:#6d7d98;box-shadow:0 18px 45px rgba(0,0,0,.2)}.help-search>span{padding-left:19px;font-size:24px}.help-search input{min-width:0;flex:1;height:100%;padding:0 14px;border:0;outline:0;background:transparent;color:var(--ink)}.help-search button{margin-right:9px;border:0;background:transparent;color:var(--blue);cursor:pointer}.search-status{min-height:24px;margin:8px 0 0;color:#8296bb;font-size:12px}.start-card{padding:27px 29px;border:1px solid rgba(255,255,255,.16);border-radius:18px;background:rgba(255,255,255,.08);box-shadow:0 20px 60px rgba(0,0,0,.18);backdrop-filter:blur(15px)}.start-card>p{margin:0;color:#7edbd4;font-size:11px;letter-spacing:1.5px}.start-card h2{margin:5px 0 17px;font-size:22px}.start-card ol{display:grid;gap:0;margin:0 0 20px;padding:0;list-style:none}.start-card li{display:flex;align-items:center;gap:11px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.1);color:#d5deef}.start-card li span{color:#6f8fcf;font:700 11px Consolas,monospace}.start-card>a{display:flex;justify-content:space-between;color:#88e3dc;text-decoration:none;font-size:13px}
.docs-layout{display:grid;grid-template-columns:235px minmax(0,1fr);gap:55px;padding-top:55px;padding-bottom:80px}.docs-sidebar{position:sticky;top:104px;align-self:start}.docs-sidebar>p{margin:0 0 12px;color:#8793a7;font-size:11px;letter-spacing:1.3px}.docs-sidebar nav{display:grid}.docs-sidebar nav a{padding:8px 11px;border-left:2px solid var(--line);color:#60708b;text-decoration:none;font-size:13px}.docs-sidebar nav a:hover,.docs-sidebar nav a.active{border-left-color:var(--blue);background:#f3f6ff;color:var(--blue)}.toc-support{display:grid;gap:3px;margin-top:20px;padding:14px;border-radius:9px;background:#f4f7fc;color:#66758e;font-size:12px}.toc-support b{color:var(--ink)}.docs-content{min-width:0}.doc-section{padding:0 0 58px;margin:0 0 58px;border-bottom:1px solid var(--line)}.doc-section[hidden]{display:none}.section-heading{display:flex;align-items:center;gap:15px;margin-bottom:20px}.section-heading>span{display:grid;place-items:center;width:45px;height:45px;border-radius:10px;background:#eef3ff;color:var(--blue);font:700 13px Consolas,monospace}.section-heading p{margin:0;color:#8c98aa;font-size:10px;letter-spacing:1.5px}.section-heading h2{margin:1px 0 0;font-size:28px;line-height:1.3}.section-intro{margin:0 0 25px;color:#586783;font-size:16px}.doc-section h3{margin:28px 0 11px;font-size:18px}.doc-section>p{color:#53617b}.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.step-grid article{padding:19px;border:1px solid var(--line);border-radius:11px;background:#fff}.step-grid b{display:grid;place-items:center;width:27px;height:27px;border-radius:7px;background:#eef3ff;color:var(--blue);font-size:12px}.step-grid h3{margin:13px 0 5px;font-size:16px}.step-grid p{margin:0;color:#68758e;font-size:13px}.instruction-list{display:grid;gap:11px;padding-left:24px;color:#53617b}.instruction-list li{padding-left:5px}.instruction-list li::marker{color:var(--blue);font-weight:700}.callout{margin-top:23px;padding:17px 19px;border-left:4px solid var(--blue);border-radius:8px;background:#f2f6ff}.callout b{display:block;margin-bottom:3px}.callout p{margin:0;color:#596883;font-size:13px}.callout.success{border-left-color:var(--green);background:#edf9f5}.callout.warning{border-left-color:#e59a35;background:#fff8ec}.callout.info{border-left-color:var(--cyan);background:#eefaf9}.two-column{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.two-column article{padding:22px;border:1px solid var(--line);border-radius:11px;background:var(--soft)}.two-column h3{margin:0 0 8px}.two-column p{margin:0;color:#5e6c85}.status-row{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:26px;padding:18px;border-radius:10px;background:#f5f7fb}.status-row span{padding:7px 10px;border-radius:7px;background:#fff;color:#51617d;font-size:12px;box-shadow:0 3px 10px rgba(21,48,90,.07)}.status-row i{color:#9aa6ba;font-style:normal}.guide-table{width:100%;margin-top:24px;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:10px}.guide-table th,.guide-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}.guide-table th{background:#f6f8fc;color:#65738a;font-size:12px}.guide-table tr:last-child td{border-bottom:0}.featured-section{position:relative;padding:32px;margin-left:-32px;margin-right:-32px;border:1px solid #dfe7ff;border-radius:16px;background:linear-gradient(145deg,#fbfcff,#f4f7ff)}.workflow-list{display:grid;gap:10px}.workflow-list>div{display:grid;grid-template-columns:42px 1fr;gap:13px;align-items:start;padding:14px;border:1px solid #e2e8f5;border-radius:9px;background:#fff}.workflow-list b{color:var(--blue);font:700 12px Consolas,monospace}.workflow-list span{color:#61708a;font-size:13px}.workflow-list strong{display:block;margin-bottom:2px;color:var(--ink);font-size:14px}.state-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.state-grid article{padding:16px 17px;border:1px solid var(--line);border-radius:9px;background:#fff}.state-grid b{font-size:14px}.state-grid p{margin:5px 0 0;color:#65738d;font-size:13px}.check-list{display:grid;gap:10px;padding:0;list-style:none}.check-list li{position:relative;padding-left:24px;color:#53617b}.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--green);font-weight:700}.formula{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;margin:23px 0;padding:22px;border-radius:11px;background:#0d1b35;color:#fff}.formula span,.formula strong{padding:8px 12px;border:1px solid rgba(255,255,255,.14);border-radius:7px;background:rgba(255,255,255,.06)}.formula strong{background:var(--blue)}.formula i{color:#78d8d1;font-style:normal}.fine-print{font-size:13px}.faq-list{display:grid;gap:10px}.faq-list details{border:1px solid var(--line);border-radius:10px;background:#fff}.faq-list summary{position:relative;padding:16px 45px 16px 18px;cursor:pointer;font-weight:600;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";position:absolute;right:17px;top:14px;color:var(--blue);font-size:20px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{margin:0;padding:0 18px 17px;color:#5d6b83;font-size:13px}.help-end{text-align:center;padding:50px 30px;border-radius:17px;background:linear-gradient(135deg,#0b1931,#173d7a);color:#fff}.help-end>p{margin:0;color:#80dcd4;font-size:11px;letter-spacing:1.5px}.help-end h2{margin:7px 0 22px;font-size:27px}.help-end>div{display:flex;justify-content:center;gap:10px}.primary-action,.secondary-action{padding:11px 17px;border-radius:8px;text-decoration:none}.primary-action{background:#fff;color:#173a76}.secondary-action{border:1px solid rgba(255,255,255,.22);color:#d5deef}.help-end small{display:block;margin-top:21px;color:#8297bb}.no-results{padding:35px;border:1px dashed #ccd5e5;border-radius:12px;text-align:center;color:var(--muted)}
.help-footer{border-top:1px solid var(--line);background:#f6f8fc;color:#66758e}.help-footer>div{min-height:82px;display:flex;align-items:center;justify-content:space-between}.help-footer nav{display:flex;gap:20px}.help-footer a{text-decoration:none}.help-footer a:hover{color:var(--blue)}
@media(max-width:980px){.help-nav nav{display:none}.help-hero-grid{grid-template-columns:1fr;gap:35px}.start-card{max-width:540px}.docs-layout{grid-template-columns:1fr}.docs-sidebar{position:static;padding:18px;border:1px solid var(--line);border-radius:12px}.docs-sidebar nav{grid-template-columns:repeat(3,1fr)}.docs-sidebar nav a{border-left:0;border-bottom:2px solid var(--line)}.featured-section{margin-left:0;margin-right:0}.step-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){html{scroll-padding-top:76px}.help-shell{width:min(100% - 26px,1180px)}.help-header{height:62px}.brand small{display:none}.help-login{padding:8px 11px;font-size:12px}.help-hero{padding:48px 0}.help-hero h1{font-size:35px}.help-lead{font-size:14px}.help-search{height:52px}.docs-layout{gap:30px;padding-top:30px}.docs-sidebar nav{grid-template-columns:1fr 1fr}.section-heading h2{font-size:23px}.step-grid,.two-column,.state-grid{grid-template-columns:1fr}.featured-section{padding:22px 16px}.status-row{justify-content:flex-start;overflow:auto}.status-row span{white-space:nowrap}.guide-table{display:block;overflow:auto}.formula{justify-content:flex-start}.help-end{padding:38px 18px}.help-end>div{flex-direction:column}.help-footer>div{padding:22px 0;display:grid;gap:12px}.help-footer nav{flex-wrap:wrap;gap:8px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}