@font-face{font-family:"ChineseFont";src:url("../fonts/LXGWWenKai-Regular.ttf") format("truetype");font-weight:400;font-display:swap;}
@font-face{font-family:"LatinFont";src:url("../fonts/Poppins-Regular.ttf") format("truetype");font-weight:400;font-display:swap;}
@font-face{font-family:"LatinFont";src:url("../fonts/Poppins-Medium.ttf") format("truetype");font-weight:600;font-display:swap;}

*{box-sizing:border-box;margin:0;padding:0;}
:root{--bg:#f6f7f9;--card:#ffffff;--ink:#1c1f23;--muted:#6b7280;--accent:#2f6df6;--accent-2:#eef3ff;--line:#e7e9ee;}
html,body{height:100%;}
body{font-family:"LatinFont","ChineseFont",system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink);display:flex;flex-direction:column;min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased;}

.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 28px;max-width:880px;width:100%;margin:0 auto;}
.brand{font-weight:600;color:var(--muted);letter-spacing:1px;}
.lang-switch{display:inline-flex;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:3px;gap:2px;}
.lang-switch button{border:0;background:transparent;color:var(--muted);font:inherit;font-size:13px;padding:6px 12px;border-radius:999px;cursor:pointer;transition:.15s;}
.lang-switch button:hover{color:var(--ink);}
.lang-switch button.active{background:var(--accent);color:#fff;}

main{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:40px 36px;max-width:620px;width:100%;box-shadow:0 10px 40px rgba(20,30,60,.06);text-align:center;}
.eyebrow{color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:10px;}
h1{font-size:30px;font-weight:600;margin-bottom:14px;word-break:break-word;}
.desc{color:var(--muted);font-size:16px;margin-bottom:26px;}
.links{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:22px;}
.btn{display:inline-block;text-decoration:none;background:var(--accent);color:#fff;font-weight:600;font-size:14px;padding:11px 20px;border-radius:10px;transition:.15s;}
.btn:hover{filter:brightness(1.05);transform:translateY(-1px);}
.btn-alt{background:var(--accent-2);color:var(--accent);}
.font-note{color:var(--muted);font-size:12px;}
footer{padding:20px;text-align:center;color:var(--muted);font-size:12px;}