:root{--bg:#f6f8ff;--card:#ffffffd9;--text:#1e2430;--muted:#73809a;--line:#e7ebf4;--accent:#6f8cff;--accent2:#ff8fb1;--danger:#ff667a;--shadow:0 10px 30px rgba(106,124,255,.12)}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;background:linear-gradient(180deg,#f8fbff,#f6f4ff 40%,#fff);color:var(--text)}a{text-decoration:none;color:var(--accent)}
.mobile-shell{max-width:720px;margin:0 auto;padding:16px 14px 92px}.topbar,.card,.tabbar{border:1px solid var(--line);box-shadow:var(--shadow)}.topbar{display:flex;gap:10px;justify-content:space-between;align-items:flex-start;padding:16px;border-radius:22px;margin:10px 0 14px;background:var(--card)}.topbar h1{margin:0;font-size:22px}.muted{color:var(--muted)}.small{font-size:12px}.glass{backdrop-filter:blur(18px);background:rgba(255,255,255,.72)}.card{background:#fff;border-radius:22px;padding:16px;margin-bottom:14px}.gradient{background:linear-gradient(135deg,rgba(111,140,255,.14),rgba(255,143,177,.14),rgba(255,255,255,.95))}.hero h2,.card h2,.card h3{margin:0 0 10px}.grid-form{display:grid;gap:12px}.grid-form label{display:grid;gap:6px;font-size:14px}.grid-form input,.grid-form textarea{width:100%;border:1px solid var(--line);border-radius:16px;padding:12px 14px;font-size:14px;background:#fbfcff}.checkbox{display:flex!important;grid-auto-flow:column;justify-content:flex-start;align-items:center;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border:none;border-radius:16px;background:linear-gradient(135deg,var(--accent),#8ca0ff);color:#fff;font-weight:700;cursor:pointer}.btn.light{background:#eef2ff;color:#4d63d7}.btn.danger{background:linear-gradient(135deg,var(--danger),#ff8ca0);color:#fff}.alert{padding:12px 14px;border-radius:16px;margin-bottom:12px}.alert.success{background:#eefbf1;color:#1f8a49}.alert.error{background:#fff0f3;color:#c74462}.row{display:flex;gap:12px;align-items:center}.between{justify-content:space-between}.tag{padding:6px 10px;border-radius:999px;background:#f2f5ff;color:#5670eb;font-size:12px}.post-card .post-content{font-size:15px;line-height:1.7;white-space:pre-wrap}.comment-item p,.ai-card p,.user-card p{margin:8px 0 0;line-height:1.7}.tabbar{position:fixed;left:50%;bottom:12px;transform:translateX(-50%);width:min(720px,calc(100% - 20px));background:rgba(255,255,255,.9);border-radius:20px;padding:12px 18px;display:flex;justify-content:space-around}.mini-actions,.inline-form{display:flex;flex-wrap:wrap;gap:8px}.mini-actions a{padding:8px 10px;background:#f6f8ff;border-radius:12px;color:#55637c}.list-line{padding:12px 0;border-bottom:1px solid var(--line)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.stat{padding:14px;border-radius:18px;background:#f8faff}.stat span{display:block;color:var(--muted);font-size:12px}.stat strong{font-size:24px;margin-top:4px;display:block}.install-bg{min-height:100vh;display:flex;align-items:center}.ai-card{background:#f8fbff}.user-card{background:#fff8fb}.sticky-send{position:sticky;bottom:84px}@media(max-width:480px){.topbar{display:block}.topbar h1{font-size:20px}.stats-grid{grid-template-columns:1fr}}