/* 天涯·复刻 —— 浅色怀旧论坛主题 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
:root{
  --bg:#f3efe6;
  --paper:#fffdf8;
  --ink:#2b2620;
  --ink-soft:#6b6356;
  --ink-faint:#9a9183;
  --line:#e2dccd;
  --line-soft:#eee9dc;
  --blue:#1f5fa8;
  --blue-soft:#3b78c0;
  --red:#c0392b;
  --amber:#b8842a;
  --lz:#c0392b;       /* 楼主 */
  --shadow:0 1px 0 rgba(0,0,0,.03), 0 2px 8px rgba(80,60,30,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:15px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--red);text-decoration:underline}

.bar-inner{max-width:980px;margin:0 auto;padding:0 18px;display:flex;align-items:center;gap:14px}

/* ---------- topbar ---------- */
.topbar{background:var(--paper);border-bottom:2px solid var(--blue);position:sticky;top:0;z-index:30;box-shadow:var(--shadow)}
.topbar .bar-inner{height:58px}
.brand{font-family:"Noto Serif SC","Songti SC",serif;font-weight:800;font-size:24px;color:var(--blue);letter-spacing:.04em;white-space:nowrap}
.brand:hover{text-decoration:none;color:var(--blue)}
.brand span{color:var(--red);font-size:15px;font-weight:600}
.search{flex:1;max-width:360px}
.search input{width:100%;height:34px;padding:0 12px;border:1px solid var(--line);border-radius:18px;background:#fbf8f1;font-size:14px;color:var(--ink)}
.search input:focus{outline:none;border-color:var(--blue-soft);background:#fff}
.bar-right{display:flex;align-items:center;gap:8px;margin-left:auto}
.lang{height:32px;border:1px solid var(--line);border-radius:6px;background:#fbf8f1;color:var(--ink-soft);font-size:13px;padding:0 6px}

.btn{height:32px;padding:0 14px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink-soft);font-size:13.5px;cursor:pointer;white-space:nowrap;transition:.15s}
.btn:hover{border-color:var(--blue-soft);color:var(--blue)}
.btn-primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.btn-primary:hover{background:var(--blue-soft);color:#fff}
.btn-ghost{background:transparent}

/* ---------- view ---------- */
.view{max-width:980px;margin:22px auto 40px;padding:0 18px;min-height:60vh}

.crumb{font-size:13px;color:var(--ink-faint);margin-bottom:14px}
.crumb a{color:var(--ink-soft)}
.crumb b{color:var(--ink)}

.panel{background:var(--paper);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);overflow:hidden}
.panel + .panel{margin-top:20px}
.panel-head{display:flex;align-items:baseline;gap:10px;padding:13px 18px;border-bottom:1px solid var(--line-soft);background:linear-gradient(#fffdf8,#faf6ec)}
.panel-head h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:17px;font-weight:700;color:var(--ink)}
.panel-head .more{margin-left:auto;font-size:12.5px;color:var(--ink-faint)}

/* ---------- board grid ---------- */
.boards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:0}
.board{display:flex;flex-direction:column;gap:3px;padding:15px 18px;border-right:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);cursor:pointer;transition:.15s}
.board:hover{background:#fbf7ee}
.board .b-name{font-family:"Noto Serif SC",serif;font-size:16px;font-weight:700;color:var(--blue)}
.board:hover .b-name{color:var(--red)}
.board .b-intro{font-size:13px;color:var(--ink-soft)}
.board .b-meta{font-size:12px;color:var(--ink-faint);margin-top:2px}

/* ---------- thread list ---------- */
.thread-row{display:flex;align-items:center;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line-soft);cursor:pointer;transition:.12s}
.thread-row:hover{background:#fbf7ee}
.thread-row:last-child{border-bottom:none}
.t-main{flex:1;min-width:0}
.t-title{font-size:15.5px;color:var(--ink);font-weight:500;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.thread-row:hover .t-title{color:var(--blue)}
.t-sub{font-size:12.5px;color:var(--ink-faint);margin-top:3px;display:flex;gap:10px;flex-wrap:wrap}
.t-sub .tag{color:var(--amber)}
.t-stat{flex-shrink:0;text-align:center;width:64px}
.t-stat .n{font-size:16px;font-weight:700;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.t-stat .l{font-size:11px;color:var(--ink-faint)}
.t-stat.hot .n{color:var(--red)}

/* ---------- thread detail / floors ---------- */
.thread-head{padding:20px 22px}
.thread-head h1{font-family:"Noto Serif SC","Songti SC",serif;font-size:24px;line-height:1.4;font-weight:800;color:var(--ink)}
.thread-head .th-meta{margin-top:10px;font-size:12.5px;color:var(--ink-faint);display:flex;gap:14px;flex-wrap:wrap}

.floor{display:flex;gap:0;border-top:1px solid var(--line-soft)}
.floor-side{width:150px;flex-shrink:0;padding:18px 16px;background:#faf6ec;border-right:1px solid var(--line-soft)}
.floor-side .av{width:42px;height:42px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-family:"Noto Serif SC",serif;font-weight:700}
.floor-side .nm{font-size:13.5px;font-weight:600;color:var(--ink);margin-top:8px;word-break:break-all}
.floor-side .lz-badge{display:inline-block;margin-top:5px;font-size:11px;color:#fff;background:var(--lz);padding:1px 7px;border-radius:3px}
.floor-body{flex:1;min-width:0;padding:18px 22px;display:flex;flex-direction:column}
.floor-num{font-size:12px;color:var(--ink-faint);display:flex;justify-content:space-between;margin-bottom:10px}
.floor-num .fl{color:var(--amber);font-weight:600}
.floor-text{font-size:15.5px;line-height:1.95;color:var(--ink);white-space:pre-wrap;word-wrap:break-word;flex:1}
.floor.is-lz .floor-side{background:#fdf3ef}
.floor.is-lz .av{background:var(--lz)}

/* ---------- reply box ---------- */
.reply-box{padding:20px 22px;border-top:2px solid var(--line)}
.reply-box h3{font-size:15px;font-family:"Noto Serif SC",serif;margin-bottom:12px;color:var(--ink)}
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:5px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:6px;padding:9px 11px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--ink);line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue-soft)}
.field textarea{resize:vertical;min-height:120px}
.field .name-in{max-width:240px}

/* ---------- pagination ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin:22px 0 4px}
.pager button{min-width:36px;height:32px;border:1px solid var(--line);background:#fff;border-radius:6px;color:var(--ink-soft);cursor:pointer;font-size:13px}
.pager button:hover:not(:disabled){border-color:var(--blue-soft);color:var(--blue)}
.pager button:disabled{opacity:.4;cursor:default}
.pager .cur{font-size:13px;color:var(--ink-faint)}

/* ---------- empty / loading ---------- */
.empty{text-align:center;padding:60px 20px;color:var(--ink-faint);font-size:14px}
.empty .big{font-family:"Noto Serif SC",serif;font-size:40px;color:var(--line);display:block;margin-bottom:10px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(40,32,20,.45);display:flex;align-items:center;justify-content:center;z-index:60;padding:20px}
.modal[hidden]{display:none}
.modal-card{background:var(--paper);border-radius:10px;width:100%;max-width:600px;max-height:86vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line-soft);position:sticky;top:0;background:var(--paper)}
.modal-head h3{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--ink)}
.modal-x{margin-left:auto;border:none;background:none;font-size:24px;color:var(--ink-faint);cursor:pointer;line-height:1}
.modal-x:hover{color:var(--red)}
.modal-body{padding:20px}
.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 22px;border-radius:8px;font-size:14px;z-index:80;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.toast[hidden]{display:none}
.toast.err{background:var(--red)}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--paper);padding:20px 0;margin-top:30px}
.foot .bar-inner{justify-content:space-between;font-size:12.5px;color:var(--ink-faint)}
.foot .stat{font-variant-numeric:tabular-nums}

@media (max-width:680px){
  .topbar .bar-inner{flex-wrap:wrap;height:auto;padding:10px 14px;gap:10px}
  .search{order:3;flex-basis:100%;max-width:none}
  .floor{flex-direction:column}
  .floor-side{width:auto;display:flex;align-items:center;gap:12px;border-right:none;border-bottom:1px solid var(--line-soft)}
  .floor-side .nm{margin-top:0}
  .floor-side .av{width:34px;height:34px;font-size:15px}
  .boards{grid-template-columns:1fr}
}