/* 灵熵 · Qi 轻社区 V1 共用样式。和首页/手记原有的深色主题变量保持一致。 */
:root{color-scheme:dark;--bg:#0b0d0f;--text:#f2f0e9;--muted:#aaa99f;--line:rgba(242,240,233,.16)}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 50% 20%,rgba(160,175,161,.09),transparent 36rem),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
.topnav{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(11,13,15,.86);backdrop-filter:blur(6px);z-index:10}
.topnav-inner{width:min(52rem,calc(100% - 2.4rem));margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 0;flex-wrap:wrap}
.topnav-brand{font-family:Georgia,"Times New Roman","Noto Serif SC",serif;font-size:1.15rem;color:var(--text);text-decoration:none}
.topnav-links{display:flex;gap:1rem;flex-wrap:wrap;font-size:.88rem}
.topnav-links a{color:var(--muted);text-decoration:none}
.topnav-links a:hover{color:var(--text)}
.topnav-auth{font-size:.85rem;color:var(--muted)}
.topnav-auth a{color:var(--text);text-decoration:none}
.cta-join{display:inline-block;background:var(--text);color:#0b0d0f!important;padding:.35rem .8rem;border-radius:999px;font-weight:600}
main.wrap{width:min(40rem,calc(100% - 3rem));margin:0 auto;padding:3.2rem 0 5rem;display:grid;gap:1.6rem}
main.wrap h1{margin:0;font-family:Georgia,"Times New Roman","Noto Serif SC",serif;font-weight:400;font-size:clamp(2rem,6vw,2.8rem);line-height:1.1}
main.wrap p.lead{color:var(--muted);font-size:1.02rem;line-height:1.8;margin:0}
.section-block{border-top:1px solid var(--line);padding-top:1.6rem;display:grid;gap:1rem}
.section-block h2{margin:0;font-size:1.15rem;font-weight:600}
form.community-form{display:grid;gap:.7rem}
form.community-form input,form.community-form textarea,form.community-form select{width:100%;padding:.75rem .85rem;border-radius:.6rem;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);font-size:.95rem;font-family:inherit}
form.community-form textarea{min-height:6rem;resize:vertical}
form.community-form button{padding:.8rem;border-radius:.6rem;border:0;background:var(--text);color:#0b0d0f;font-weight:600;font-size:.95rem;cursor:pointer;justify-self:start;padding-left:1.4rem;padding-right:1.4rem}
form.community-form button:disabled{opacity:.5;cursor:default}
.msg{font-size:.85rem;min-height:1.1em}
.msg.err{color:#ff8a8a}
.msg.ok{color:#9be29b}
.post-list{display:grid;gap:1rem}
.post-item{border:1px solid var(--line);border-radius:.8rem;padding:1rem 1.1rem;background:rgba(255,255,255,.02)}
.post-item h3{margin:0 0 .4rem;font-size:1rem}
.post-body{margin:0;line-height:1.75;white-space:pre-wrap;word-break:break-word}
.post-meta{margin-top:.5rem;font-size:.78rem;color:var(--muted)}
.empty{color:var(--muted);font-size:.9rem}
.tabbar{display:flex;gap:.5rem;flex-wrap:wrap}
.tabbar button{padding:.45rem .9rem;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);font-size:.85rem;cursor:pointer}
.tabbar button.active{background:var(--text);color:#0b0d0f;border-color:var(--text)}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:1rem}
.contact-item{border:1px solid var(--line);border-radius:.8rem;padding:1rem;text-align:center;font-size:.85rem;color:var(--muted)}
.contact-item img{width:100%;max-width:8rem;border-radius:.5rem;margin-bottom:.6rem;background:#fff}
.contact-item a{color:var(--text)}
.contact-pending{color:var(--muted);font-style:italic}
.back{color:var(--muted);text-decoration:none;font-size:.85rem}
@media(max-width:32rem){main.wrap{width:min(100% - 2rem,40rem)}}

.btn-primary{display:inline-block;background:var(--text);color:#0b0d0f;padding:.85rem 1.5rem;border-radius:999px;font-weight:700;text-decoration:none;font-size:1rem;border:0;cursor:pointer}
.btn-secondary{display:inline-block;border:1px solid var(--line);color:var(--text);padding:.85rem 1.5rem;border-radius:999px;font-weight:600;text-decoration:none;font-size:1rem;background:transparent;cursor:pointer}
.event-comments{margin-top:.9rem;font-size:.85rem}
.event-comments summary{cursor:pointer;color:var(--muted)}
.event-comments summary:hover{color:var(--text)}
.event-comments form{margin-top:.7rem}

.post-tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.5rem}
.tag-pill{font-size:.72rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:.15rem .6rem}
.post-actions{margin-left:.5rem}
.post-action{background:none;border:0;color:var(--muted);font-size:.78rem;text-decoration:underline;cursor:pointer;padding:0;margin-left:.6rem}
.post-action:hover{color:var(--text)}
.post-action:disabled{opacity:.5;cursor:default;text-decoration:none}
.search-box{display:flex;gap:.5rem}
.search-box input{flex:1}