/* DigiLegacy 归零 — 官网共享样式（英文站 index.html / 中文站 zh/index.html 共用） */
:root{
  --ink:#22333B; --paper:#FBFAF8; --primary:#4A7C8C; --primary-dk:#31606F;
  --accent:#C98A5E; --accent-txt:#9C5628; --text:#24323A; --muted:#5C6F79;
  --tint:#EDF2F4; --line:#DCE4E8; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--text);
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary-dk)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* nav */
nav{position:sticky;top:0;z-index:50;background:rgba(251,250,248,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none;font-size:17px;flex:none}
.brand svg{width:30px;height:30px;flex:0 0 30px}
.brand small{font-weight:400;color:var(--muted);font-size:12px;letter-spacing:.4px}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-size:14px}
nav a{color:var(--muted);text-decoration:none}
nav a:hover{color:var(--primary-dk)}

/* language switch: always visible, even when section links collapse on mobile */
.lang{display:flex;align-items:center;gap:6px;flex:none;font-size:13px;border:1px solid var(--line);border-radius:999px;padding:5px 6px;background:#fff}
.lang a{color:var(--muted);text-decoration:none;padding:2px 9px;border-radius:999px;line-height:1.6}
.lang a:hover{color:var(--primary-dk)}
.lang a[aria-current="page"]{background:var(--primary);color:#fff}

@media(max-width:860px){nav ul{display:none}}

/* hero */
header.hero{background:var(--ink);color:#fff;padding:76px 0 64px}
.hero h1{margin:0 0 6px;font-size:clamp(34px,6vw,58px);letter-spacing:-.5px;line-height:1.1}
.hero .cn{font-size:clamp(15px,2.2vw,19px);color:#9FB6C0;margin:0 0 20px;font-weight:400}
.hero p.lead{font-size:clamp(16px,2.1vw,19px);color:#CFE0E6;max-width:760px;margin:0 0 26px}
.hero .accent{color:var(--accent);font-weight:600}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.btn{display:inline-block;padding:12px 24px;border-radius:10px;text-decoration:none;font-weight:600;font-size:15px;transition:transform .12s ease,opacity .12s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:#fff;color:var(--ink)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#E6EFF2}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badges img{height:20px}

/* hero screenshot: show the actual app immediately */
.hero-shot{margin:40px 0 0;border:1px solid rgba(255,255,255,.18);border-radius:12px;overflow:hidden;background:#101b20;box-shadow:0 24px 60px rgba(0,0,0,.38)}
.hero-shot img{width:100%;display:block}
.hero-shot figcaption{padding:10px 16px;font-size:12.5px;color:#9FB6C0;background:#1a272d;border-top:1px solid rgba(255,255,255,.08)}

/* "new in 0.2.0" band */
.new-band{background:var(--tint);border-bottom:1px solid var(--line);padding:26px 0}
.new-band .wrap{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.new-band .item{font-size:13.5px;color:var(--muted)}
.new-band .item strong{display:block;color:var(--primary-dk);font-size:14px;margin-bottom:2px}

/* sections */
section{padding:64px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
h2{font-size:clamp(23px,3.4vw,31px);margin:0 0 10px;color:var(--primary-dk);letter-spacing:-.2px}
h2+.sub{color:var(--muted);margin:0 0 30px;font-size:16px}
h3{font-size:18px;margin:0 0 6px;color:var(--primary-dk)}

.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card p{margin:6px 0 0;color:var(--muted);font-size:14.5px}
.card .num{display:inline-block;font-weight:700;color:var(--accent-txt);font-size:13px;letter-spacing:1px;margin-bottom:8px}

table{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--tint);color:var(--primary-dk);font-weight:600}
tr:last-child td{border-bottom:0}
td.yes{color:#2F7A5A;font-weight:600}
td.no{color:#9AA8B0}

.shots{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}
figure{margin:0}
figure img{border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px rgba(34,51,59,.10)}
figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}

pre{background:var(--ink);color:#DCE9ED;padding:16px 18px;border-radius:10px;overflow-x:auto;font-size:13.5px;line-height:1.65}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

.note{background:var(--tint);border-left:3px solid var(--primary);border-radius:8px;padding:14px 18px;font-size:14.5px;color:var(--text)}
.warn{background:#FDF6EC;border-left:3px solid var(--accent);border-radius:8px;padding:14px 18px;font-size:14.5px}

details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}
details summary{cursor:pointer;font-weight:600;color:var(--primary-dk);font-size:15.5px}
details p{margin:10px 0 0;color:var(--muted);font-size:14.5px}

footer{background:var(--ink);color:#8FA6B0;padding:40px 0;font-size:14px}
footer a{color:#CFE0E6;text-decoration:none}
footer .cols{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
footer h4{color:#fff;font-size:14px;margin:0 0 10px;letter-spacing:.4px}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:6px}
.mirror{display:flex;gap:14px;flex-wrap:wrap}

/* walkthrough video: 3:2 is the app window ratio, and capping the width keeps the gallery visible */
.walkthrough{display:block;width:100%;max-width:880px;margin:0 auto;aspect-ratio:3/2;background:#0d1418;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 28px rgba(34,51,59,.10)}

/* badges: local pills instead of shields.io images (that host is commonly blocked in mainland China) */
.badges{display:flex;gap:8px;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.pill{font-size:12px;line-height:1.9;padding:1px 10px;border-radius:6px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);color:#CFE0E6;white-space:nowrap}