:root{--bg:#f4f5f7;--card:#ffffff;--line:#e3e6eb;--text:#13161b;--muted:#6b7280;--blue:#2f6fe4;--green:#01c85b;--green-dark:#0a9a52;--radius:22px}
*{box-sizing:border-box;margin:0;padding:0}
html,body{min-height:100%}
body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,system-ui,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:inherit}
.top{position:sticky;top:0;z-index:5;background:var(--card);border-bottom:1px solid var(--line)}
.top .in{max-width:1180px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.top img{height:22px;display:block}
.top nav{display:flex;align-items:center;gap:14px;font-size:14px}
.top nav span{color:var(--muted)}
.top nav a,.top nav button{font:inherit;color:var(--text);background:none;border:1px solid var(--line);border-radius:10px;padding:7px 13px;cursor:pointer;text-decoration:none}
.top nav a:hover,.top nav button:hover{border-color:#c9ced6}
.wrap{max-width:1180px;margin:0 auto;padding:36px 20px 80px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:700;font-size:16px;color:#fff;background:var(--green-dark);border:0;border-radius:14px;padding:16px 26px;cursor:pointer;text-decoration:none;min-height:50px}
.btn:hover{background:#087a51}
.btn.wide{width:100%}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(16px);opacity:0;background:#13161b;color:#fff;font-size:14px;padding:12px 18px;border-radius:12px;transition:.2s;pointer-events:none;max-width:90vw;text-align:center}
.toast.on{opacity:1;transform:translateX(-50%)}
@media(max-width:700px){
  .top .in{padding:12px 16px}
  .top img{height:20px}
  .top nav span{display:none}
  .top nav a,.top nav button{padding:9px 12px;font-size:13.5px;min-height:40px}
  .wrap{padding:20px 16px 56px}
  .btn{min-height:54px;font-size:17px}
}