:root{--ink:#202b31;--muted:#5d6b71;--line:#dce4e2;--paper:#fff;--page:#f3f7f6;--accent:#b76d0d;--accent-soft:#fff1d9;--teal:#126d69;--teal-soft:#e5f4f1}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}
a{color:#09677b}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #d89a35;outline-offset:3px}
.skip-link{position:absolute;top:-100px;left:12px;padding:8px 12px;background:#fff;z-index:100}
.skip-link:focus{top:12px}
.help-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.help-header-inner{max-width:1450px;min-height:72px;margin:auto;padding:10px 30px;display:flex;align-items:center;gap:16px}
.help-brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:800;line-height:1.25}
.help-mark{width:38px;height:38px;display:grid;place-items:center;border:2px solid #dc9d37;border-radius:8px;background:#fff9ed;color:#a15b05;font-weight:900}
.help-brand small{display:block;color:var(--muted);font-size:11px;font-weight:600}
.help-header-title{margin-left:12px;padding-left:22px;border-left:1px solid var(--line);font-size:18px;font-weight:850}
.help-header-actions{margin-left:auto;display:flex;gap:10px;align-items:center}
.help-header-actions a{border:1px solid var(--line);border-radius:9px;padding:7px 13px;text-decoration:none;color:var(--ink);font-weight:700;font-size:13px;white-space:nowrap;background:#fff}
.help-header-actions a:hover{border-color:#c5a36f;background:#fffaf1}
.help-shell{max-width:1450px;margin:auto;padding:28px 30px 80px;display:grid;grid-template-columns:235px minmax(0,1fr);gap:28px}
.help-toc{position:sticky;top:100px;align-self:start;max-height:calc(100vh - 120px);overflow:auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 12px;box-shadow:0 8px 30px rgba(30,55,55,.03)}
.help-toc p{margin:0 10px 8px;color:#819097;font-size:11px;letter-spacing:.15em;font-weight:850}
.help-toc nav{display:grid;gap:2px}
.help-toc a{display:block;padding:8px 11px;border-radius:8px;text-decoration:none;color:#40525a;font-size:13px;font-weight:700;white-space:nowrap}
.help-toc a:hover{background:#f3f6f5;color:#1a555a}
.help-main{min-width:0}
.help-hero{position:relative;overflow:hidden;padding:38px 42px;background:linear-gradient(120deg,#e7f3f0 0%,#f9f7ed 100%);border:1px solid #d6e7df;border-radius:20px}
.help-hero:after{content:"";position:absolute;width:270px;height:270px;border:36px solid rgba(32,125,112,.08);border-radius:50%;right:-110px;top:-130px}
.help-eyebrow{margin:0 0 8px;color:#7d6b4d;font-size:11px;letter-spacing:.18em;font-weight:850}
.help-hero h1{position:relative;z-index:1;margin:0;font-size:clamp(28px,4vw,44px);line-height:1.22;letter-spacing:-.035em}
.help-hero>p:last-of-type{position:relative;z-index:1;max-width:700px;margin:15px 0 0;color:#48616a}
.help-hero-badges{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.help-hero-badges span{padding:5px 10px;border:1px solid #d4e2da;border-radius:999px;background:rgba(255,255,255,.75);color:#385c5a;font-size:12px;font-weight:750}
.help-role-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px;margin:18px 0 26px}
.help-role-grid a{display:block;padding:17px 16px;background:#fff;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--ink)}
.help-role-grid a:hover{border-color:#d6ad70;transform:translateY(-1px)}
.help-role-grid strong{display:block;font-size:14px}
.help-role-grid span{display:block;margin-top:3px;color:var(--muted);font-size:12px}
.help-section{scroll-margin-top:90px;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:31px 36px;margin:20px 0;box-shadow:0 5px 24px rgba(25,45,50,.025)}
.help-section h2{margin:0 0 15px;font-size:23px;line-height:1.35}
.help-section h3{margin:24px 0 9px;font-size:17px;line-height:1.4}
.help-section p{margin:8px 0 13px;color:#465960}
.help-section ul{padding-left:21px;margin:9px 0 15px}
.help-section li{margin:6px 0;padding-left:3px}
.help-section li::marker{color:var(--teal)}
.section-kicker{display:inline-block;margin-bottom:9px;color:var(--accent);font-size:11px;letter-spacing:.14em;font-weight:900}
.help-steps{list-style:none;padding:0!important;counter-reset:step;display:grid;gap:9px}
.help-steps li{position:relative;counter-increment:step;margin:0;padding:12px 15px 12px 53px;background:#f6f9f8;border:1px solid #e4eae8;border-radius:11px}
.help-steps li:before{content:counter(step);position:absolute;left:13px;top:12px;width:27px;height:27px;display:grid;place-items:center;border-radius:8px;background:var(--teal-soft);color:var(--teal);font-size:12px;font-weight:900}
.help-steps strong{display:block;font-size:14px}
.help-steps span{display:block;color:var(--muted);font-size:13px}
.help-note{margin:16px 0;padding:13px 16px;border-left:4px solid #c98420;border-radius:0 10px 10px 0;background:#fff8ea;color:#654d2b;font-size:13px}
.help-note.teal{border-color:#3c9388;background:#eff8f5;color:#325f5b}
.help-note.danger{border-color:#c36857;background:#fff2ed;color:#873e34}
.help-table-wrap{overflow:auto;margin:14px 0;border:1px solid var(--line);border-radius:11px}
.help-table{width:100%;min-width:600px;border-collapse:collapse;font-size:13px}
.help-table th,.help-table td{text-align:left;padding:10px 13px;border-bottom:1px solid #e6ece9;vertical-align:top}
.help-table th{background:#f3f7f3;color:#486167;font-weight:850}
.help-table tr:last-child td{border-bottom:0}
.help-figure{margin:20px 0 5px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fafcfb}
.help-figure a{display:block;line-height:0}
.help-figure img{display:block;width:100%;height:auto;max-height:540px;object-fit:contain;object-position:top center;background:#eef3f0}
.help-figure figcaption{padding:10px 14px;color:#60737a;border-top:1px solid var(--line);font-size:12px;line-height:1.55}
.help-figure figcaption b{color:#334950}
.help-figure-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.help-figure-grid .help-figure{margin-top:10px}
.help-section details{border:1px solid var(--line);border-radius:10px;padding:11px 14px;margin:8px 0;background:#fbfcfb}
.help-section summary{cursor:pointer;font-weight:800}
.help-section details p{margin:9px 0 1px;font-size:13px}
.help-footer{padding:20px 8px;text-align:center;color:#6d7d82;font-size:12px}
.help-footer a{font-weight:800}
@media(max-width:1050px){.help-shell{grid-template-columns:185px minmax(0,1fr);gap:18px}.help-role-grid{grid-template-columns:repeat(2,1fr)}.help-section{padding:25px}}
@media(max-width:760px){.help-header-inner{min-height:62px;padding:8px 14px}.help-brand{font-size:12px}.help-brand small,.help-header-title{display:none}.help-header-actions a{padding:6px 9px;font-size:11px}.help-shell{display:block;padding:12px 10px 55px}.help-toc{position:sticky;top:62px;z-index:20;max-height:none;overflow-x:auto;padding:7px 9px;margin-bottom:12px;border-radius:10px}.help-toc p{display:none}.help-toc nav{display:flex;gap:5px;width:max-content}.help-toc a{padding:7px 9px;font-size:12px}.help-hero{padding:25px 20px;border-radius:14px}.help-role-grid{gap:7px;margin:10px 0 16px}.help-role-grid a{padding:11px}.help-role-grid strong{font-size:12px}.help-role-grid span{font-size:10px}.help-section{scroll-margin-top:120px;padding:22px 18px;margin:13px 0;border-radius:14px}.help-section h2{font-size:20px}.help-section h3{font-size:16px}.help-figure-grid{grid-template-columns:1fr}.help-figure img{max-height:none}}
@media print{.help-header,.help-toc,.help-role-grid,.help-footer{display:none}.help-shell{display:block;padding:0}.help-section,.help-hero{box-shadow:none;break-inside:avoid;margin:8px 0}.help-figure{break-inside:avoid}}