:root{color-scheme:light;--bg:#f5f8f6;--paper:#fff;--ink:#182a24;--muted:#5f7068;--line:#dce5df;--accent:#087b4b;--soft:#e6f2eb}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC",sans-serif}
a{color:var(--accent);text-underline-offset:4px}
button,input{font:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.wrap{width:min(1320px,calc(100% - 48px));margin:auto}
.skip{position:absolute;top:-60px;left:20px;background:var(--paper);padding:10px;z-index:2}
.skip:focus{top:10px}
.topbar{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:750;letter-spacing:-.04em;text-decoration:none;color:var(--ink)}
.brand img{width:38px;height:38px;border-radius:10px}
.nav{display:flex;gap:24px;font-size:14px}.nav a{text-decoration:none;color:var(--muted)}
.hero{padding:64px 0 36px;display:grid;grid-template-columns:1.4fr 1fr;gap:64px;align-items:center}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.15em;color:var(--accent);margin:0 0 18px}
h1{font-size:clamp(36px,4.3vw,54px);line-height:1.2;letter-spacing:-.045em;margin:0 0 22px}
h1 span{color:var(--accent)}
.lead{font-size:17px;color:var(--muted);max-width:610px;margin:0 0 25px}
.hero-links{display:flex;gap:24px;flex-wrap:wrap;align-items:center;font-size:14px}
.primary{display:inline-flex;align-items:center;justify-content:center;gap:12px;color:#fff;background:var(--accent);border-radius:10px;padding:12px 20px;text-decoration:none;font-weight:600}
.flow{padding:27px 30px;border:1px solid var(--line);border-radius:20px;background:var(--paper)}
.flow-title{font-size:12px;letter-spacing:.08em;color:var(--muted);margin:0 0 20px}
.flow ol{list-style:none;margin:0;padding:0;display:grid;gap:20px}.flow li{display:flex;gap:16px;align-items:center}
.flow .number{display:grid;place-items:center;width:34px;height:34px;flex-shrink:0;border-radius:50%;background:var(--soft);color:var(--accent);font-size:13px;font-weight:700}
.flow strong{font-size:15px}.flow small{display:block;font-size:12px;color:var(--muted)}
.notice{margin:0 0 48px;padding:18px 22px;border-left:3px solid var(--accent);background:var(--soft);border-radius:0 10px 10px 0;font-size:14px;color:var(--muted)}
.notice strong{color:var(--ink)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}
h2{font-size:28px;line-height:1.4;letter-spacing:-.035em;margin:0 0 8px}h3{font-size:18px;line-height:1.4;margin:0}
.section-head p,.section-intro{font-size:14px;color:var(--muted);margin:0}
.date{font-size:12px;color:var(--muted);white-space:nowrap}
.filters{margin:24px 0 30px;padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--paper)}
.search-label{font-size:13px;font-weight:600;display:block;margin-bottom:8px}
input[type=search]{width:100%;appearance:none;border:1px solid var(--line);border-radius:8px;padding:12px 14px;background:var(--bg);color:var(--ink)}
.filter-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:14px}
.categories{display:flex;gap:8px;flex-wrap:wrap}.categories button{border:1px solid var(--line);border-radius:20px;padding:7px 13px;background:var(--paper);color:var(--muted);font-size:13px}
.categories button[aria-pressed=true]{border-color:var(--accent);background:var(--soft);color:var(--accent);font-weight:600}
.count{font-size:12px;color:var(--muted);margin:0}
.group{margin:36px 0}.group>h3{margin:0 0 16px;font-size:17px}.group>h3 span{font-size:12px;font-weight:400;color:var(--muted);margin-left:9px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:start}
.provider{padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:14px;min-width:0;scroll-margin-top:24px}
.provider-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.provider h4{font-size:17px;line-height:1.4;margin:0}
.badge{width:38px;height:38px;display:grid;place-items:center;flex-shrink:0;background:var(--soft);border-radius:10px;color:var(--accent);font-size:14px;font-weight:750}
.provider .sub{display:block;font-size:11px;color:var(--muted);margin-top:3px}
.description{font-size:13px;line-height:1.7;color:var(--muted);margin:0 0 18px;min-height:44px}
.provider-links{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;margin-bottom:18px}.provider-links a{text-decoration:none}.provider-links a:first-child{font-weight:650}
details{border-top:1px solid var(--line)}
summary{cursor:pointer;font-size:13px;font-weight:600;padding:14px 0 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}summary::after{content:"＋";color:var(--accent);flex-shrink:0}details[open]>summary::after{content:"−"}
.provider ol{padding-left:20px;margin:16px 0;font-size:13px;color:var(--muted)}.provider li{margin:9px 0}
.config{border-radius:8px;background:var(--bg);padding:12px;font-size:12px}.config p{margin:0 0 8px;color:var(--muted)}
code{font:12px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere;word-break:break-word;user-select:all}
.endpoint{display:block;color:var(--ink)}.copy{margin-top:10px;border:1px solid var(--line);border-radius:6px;background:var(--paper);padding:5px 10px;font-size:12px;color:var(--accent)}
.tip{font-size:12px;line-height:1.75;color:var(--muted);margin:14px 0 0}
.empty{padding:32px;text-align:center;border:1px dashed var(--line);border-radius:14px;color:var(--muted)}.empty button{border:0;background:none;color:var(--accent);text-decoration:underline}
.setup{margin:60px 0;padding:32px;border:1px solid var(--line);background:var(--paper);border-radius:18px}
.setup ol{padding-left:22px;color:var(--muted);font-size:15px}.setup li{margin:14px 0}.setup strong{color:var(--ink)}
.setup-note{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;margin-bottom:0}
.voice .provider{height:100%}.voice p{font-size:14px;color:var(--muted)}
.faq{padding:0 0 60px}.faq h2{margin-bottom:22px}.faq details{padding-bottom:18px}.faq summary{font-size:15px;padding-top:18px}.faq p{max-width:850px;font-size:14px;color:var(--muted);margin:14px 0 0}
footer{border-top:1px solid var(--line);padding:26px 0 34px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:12px}footer a{text-decoration:none}footer div{display:flex;gap:20px}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);border-radius:10px;padding:10px 18px;max-width:calc(100% - 36px);background:var(--ink);color:#fff;font-size:13px;box-shadow:0 4px 24px #182a2420;z-index:3}
@media(max-width:950px){.hero{gap:30px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.wrap{width:calc(100% - 36px)}.topbar{min-height:72px}.brand{font-size:20px}.brand img{width:32px;height:32px}.nav{gap:15px;font-size:12px}.nav .optional{display:none}.hero{grid-template-columns:1fr;padding:40px 0 28px;gap:28px}h1{font-size:clamp(28px,8.2vw,32px)}.lead{font-size:15px}.flow{padding:24px}.notice{margin-bottom:36px;padding:16px 18px}.section-head{display:block}.date{display:block;margin-top:12px}.cards{grid-template-columns:1fr}.filters{padding:16px}.provider{padding:22px}.description{min-height:0}.setup{padding:24px 20px;margin:42px 0}h2{font-size:25px}.faq{padding-bottom:42px}footer{display:block}footer div{margin-top:12px}.toast{bottom:18px;width:max-content}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.help-layout{display:grid;grid-template-columns:184px minmax(0,1fr);gap:36px;align-items:start}
main{min-width:0}
.help-toc{position:sticky;top:24px;margin-top:60px;border:1px solid var(--line);border-radius:14px;background:var(--paper);padding:18px 14px;max-height:calc(100vh - 48px);overflow:auto}
.help-toc summary{padding:0 6px;font-size:14px}
.help-toc nav{display:grid;gap:4px;margin-top:14px}
.help-toc a{display:block;padding:6px 10px;border-radius:7px;text-decoration:none;font-size:13px;color:var(--muted);line-height:1.5}
.help-toc a:hover,.help-toc a[aria-current]{background:var(--soft);color:var(--accent)}
.help-toc .toc-sub{padding-left:22px;font-size:12px}
.service-section{scroll-margin-top:24px;margin-bottom:46px}
.service-section>.cards{margin-top:22px}
.voice{padding-bottom:0}
@media(min-width:1051px) and (max-width:1200px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{gap:28px}}
@media(max-width:1050px){.help-layout{display:block}.help-toc{position:static;margin:24px 0 0;max-height:none;padding:16px 18px}.help-toc nav{grid-template-columns:repeat(2,minmax(0,1fr))}.help-toc .toc-sub{display:none}.hero{padding-top:36px}}
@media(max-width:650px){.help-toc nav{grid-template-columns:1fr}.service-section{margin-bottom:36px}}