:root{--ink:#1d2330;--mute:#5b6475;--line:#d9dee7;--blue:#bfe0f7;--blue-d:#2f7fc1;--yellow:#fbe7a1;--yellow-d:#c99a12;--red:#f6c3c3;--red-d:#c0392b;--green:#c9ecc4;--green-d:#2e8b3e}
*{box-sizing:border-box}
body{margin:0;font-family:"Inter","PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.7}
.wrap{max-width:980px;margin:0 auto;padding:0 24px}
header{padding:56px 0 24px;border-bottom:1px solid var(--line)}
.lang{float:right;font-size:14px}
.lang a{color:var(--blue-d);text-decoration:none;border:1px solid var(--line);padding:4px 10px;border-radius:8px}
h1{font-size:34px;line-height:1.3;margin:8px 0 12px}
.lead{font-size:18px;color:var(--mute);max-width:760px}
.answer{margin:24px 0 8px;padding:18px 22px;border-radius:14px;background:#f5f9fd;border:1.5px solid var(--blue-d);font-size:17px}
section{padding:48px 0;border-bottom:1px solid var(--line)}
.step{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--blue-d);text-transform:uppercase}
h2{font-size:24px;margin:4px 0 18px}
figure{margin:0 0 18px;padding:18px;border:1.5px solid var(--ink);border-radius:16px;background:#fff}
figure img,figure video{width:100%;display:block;border-radius:8px}
figcaption{font-size:14px;color:var(--mute);margin-top:10px}
.txt{font-size:16px;max-width:820px}
.txt b{color:var(--ink)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid2 video{border:1px solid var(--line)}
.tag{display:inline-block;padding:2px 10px;border-radius:999px;font-size:13px;font-weight:600}
.t-ok{background:var(--green);color:#1d5e27}.t-bad{background:var(--red);color:#7d1f16}.t-mid{background:var(--yellow);color:#6e5408}
table{border-collapse:collapse;width:100%;font-size:15px}
td,th{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}
th{color:var(--mute);font-weight:600}
blockquote{margin:0;padding:14px 20px;border-left:4px solid var(--blue-d);background:#f7f9fc;border-radius:0 12px 12px 0;color:#2b3242}
footer{padding:32px 0 56px;font-size:14px;color:var(--mute)}
footer a,.txt a{color:var(--blue-d)}
svg text{font-family:"Comic Neue","Patrick Hand","PingFang SC","Noto Sans CJK SC",sans-serif}
@media(max-width:720px){.grid2{grid-template-columns:1fr}h1{font-size:26px}}