/* Faino website. Colours: Dusk Violet (docs/Faino-品牌与界面方向.md §2.1). */
:root{--paper:#F7F8F7;--surface:#fff;--ink:#1C201F;--muted:#5F6461;--line:#E1E3E0;--purple:#55389E;--deep:#3A2470;--lime:#C9F0A0;--on-purple:#F3F0FA;
  --serif:"Fraunces",Georgia,"Songti SC","Noto Serif SC",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--purple);text-underline-offset:3px}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.topnav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.topnav .logo img{height:40px;margin-left:-7px}
.topnav nav{display:flex;gap:20px;font-size:15px}
.topnav nav a{color:inherit;text-decoration:none}.topnav nav a:hover{color:var(--purple)}
.on-purple .topnav nav a{color:var(--on-purple)}
.hero{background:var(--purple);color:var(--on-purple)}
.hero-body{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:40px 0 0}
.hero h1{font:500 clamp(36px,6vw,58px)/1.1 var(--serif);margin:0 0 18px;font-variation-settings:"opsz" 144}
.hero p.lead{font-size:19px;max-width:520px;margin:0 0 28px;color:#E2DCF5}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:48px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:10px;font-weight:600;text-decoration:none;font-size:15.5px}
.btn.lime{background:var(--lime);color:var(--deep)}
.btn.ghost{color:var(--on-purple);border:1px solid #ffffff55}
.btn.soon{opacity:.92;cursor:default}
.shot{background:#fff;border-radius:14px 14px 0 0;box-shadow:0 30px 60px #0003;overflow:hidden;align-self:end;max-width:380px;justify-self:center}
section{padding:72px 0}
h2{font:500 clamp(28px,4vw,38px)/1.2 var(--serif);margin:0 0 10px;font-variation-settings:"opsz" 72}
.sub{color:var(--muted);max-width:620px;margin:0 0 36px;font-size:17px}
.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.feature .pic{background:#EFEBF8;padding:22px 22px 0;display:flex;justify-content:center;height:300px;overflow:hidden}
.feature .pic img{border-radius:10px 10px 0 0;box-shadow:0 10px 30px #3a247022;width:100%;object-fit:cover;object-position:top}
.feature h3{font:500 21px/1.3 var(--serif);margin:20px 22px 6px}
.feature p{margin:0 22px 22px;color:var(--muted);font-size:15px}
.privacy-band{background:var(--lime);color:var(--deep)}
.privacy-band .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:8px}
.privacy-band h3{font:500 20px/1.3 var(--serif);margin:0 0 4px}
.privacy-band p{margin:0;font-size:15px}
.privacy-band a{color:var(--deep);font-weight:600}
footer{padding:36px 0 48px;color:var(--muted);font-size:14px;border-top:1px solid var(--line)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between}
footer nav{display:flex;flex-wrap:wrap;gap:18px} footer a{color:inherit}
/* Document pages: guide and privacy */
.doc{max-width:760px;margin:0 auto;padding:12px 20px 80px}
.doc h1{font:500 clamp(30px,5vw,42px)/1.15 var(--serif);margin:28px 0 6px}
.doc h2{font-size:24px;margin:40px 0 8px}
.doc .meta{color:var(--muted);font-size:14px}
.doc ol.steps{counter-reset:s;list-style:none;padding:0}
.doc ol.steps li{counter-increment:s;position:relative;padding:0 0 18px 44px}
.doc ol.steps li:before{content:counter(s);position:absolute;left:0;top:1px;width:28px;height:28px;border-radius:50%;background:var(--purple);color:#fff;font:600 14px/28px var(--sans);text-align:center}
.doc ol.steps b{display:block}
.doc table{width:100%;border-collapse:collapse;margin:10px 0;font-size:15px;background:var(--surface)}
.doc th,.doc td{text-align:left;vertical-align:top;padding:9px 12px;border-bottom:1px solid var(--line)}
.doc td:first-child{white-space:nowrap}
.lang-switch{font-size:14px;display:flex;gap:14px;margin:8px 0 0}
.doc hr{border:0;border-top:1px solid var(--line);margin:64px 0}
.kbd{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:0 6px;background:var(--surface);font-size:14px}
@media (max-width:860px){.hero-body{grid-template-columns:1fr}.features,.privacy-band .grid{grid-template-columns:1fr}.shot{max-width:320px}}
@media (max-width:520px){.topnav nav{gap:14px;font-size:14px}.topnav .logo img{height:32px}}