/* ============================================================
   导航页样式
   ============================================================ */

:root {
  --bg: #08080c;
  --surf: #111118;
  --surf2: #18181f;
  --bdr: #1e1e28;
  --bdr2: #2a2a36;
  --acc: #c9a84c;
  --acc2: #a88a3a;
  --acc-glow: rgba(201,168,76,.10);
  --txt: #e8e4dc;
  --txt2: #9a958e;
  --txt3: #5a5550;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --ff-d: 'Playfair Display', Georgia, serif;
  --ff-m: 'DM Mono', 'Menlo', monospace;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; -webkit-font-smoothing:antialiased; }

body {
  font-family: var(--ff-m);
  font-weight: 400;
  background: var(--bg);
  color: var(--txt);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(201,168,76,.025) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(80,100,200,.018) 0%, transparent 50%);
}

/* 纹理 */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 10000;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: .025;
}

/* 滚动条 */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--bdr); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--txt3); }

.container { max-width:960px; margin:0 auto; padding:60px 24px 40px; }

/* ---- 时钟 ---- */
.clock { text-align:center; margin-bottom:48px; animation: fadeIn .8s ease; }
.greeting { font-family:var(--ff-d); font-size:2rem; font-weight:600; color:var(--txt2); letter-spacing:.05em; margin-bottom:4px; }
.time { font-size:3.5rem; font-weight:500; letter-spacing:.08em; color:var(--txt); line-height:1.1; }
.date { font-size:.85rem; color:var(--txt3); margin-top:8px; letter-spacing:.04em; }

/* ---- 搜索 ---- */
.search-wrap { margin-bottom:56px; animation: fadeIn .8s ease .15s both; }
.search-bar {
  max-width:640px; margin:0 auto; display:flex; align-items:center;
  background:var(--surf); border:1px solid var(--bdr); border-radius:var(--r-lg); padding:4px;
  transition: border-color .3s, box-shadow .3s;
}
.search-bar:focus-within { border-color:var(--acc2); box-shadow:0 0 0 3px var(--acc-glow), 0 8px 32px rgba(0,0,0,.2); }

.engine-sel {
  appearance:none; background:transparent; border:none; outline:none;
  color:var(--acc); font-family:var(--ff-m); font-size:.8rem; font-weight:500;
  padding:12px 10px 12px 14px; cursor:pointer; min-width:95px; border-right:1px solid var(--bdr);
}
.engine-sel option { background:var(--surf); color:var(--txt); }

.search-input {
  flex:1; background:transparent; border:none; outline:none;
  color:var(--txt); font-family:var(--ff-m); font-size:.95rem; padding:12px 14px; min-width:0;
}
.search-input::placeholder { color:var(--txt3); }

.search-go {
  display:flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:var(--r-md); border:none;
  background:var(--acc); color:var(--bg); cursor:pointer;
  transition: background .2s, transform .2s; flex-shrink:0;
}
.search-go:hover { background:var(--acc2); transform:scale(1.05); }

/* ---- 分类 ---- */
#cats { animation: fadeIn .8s ease .3s both; }

.cat-group { margin-bottom:40px; }
.cat-hd { display:flex; align-items:center; gap:16px; margin-bottom:20px; }
.cat-title { font-family:var(--ff-d); font-size:1.35rem; font-weight:600; color:var(--txt2); white-space:nowrap; letter-spacing:.02em; }
.cat-line { flex:1; height:1px; background:linear-gradient(to right, var(--bdr), transparent); }

.sites-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(160px, 1fr)); gap:12px; }

/* ---- 站点卡片 ---- */
.site-card {
  display:flex; align-items:center; gap:12px; padding:14px 16px;
  background:var(--surf); border:1px solid var(--bdr); border-radius:var(--r-md);
  text-decoration:none; color:var(--txt); cursor:pointer;
  transition: all .25s ease; opacity:0; animation: fadeUp .4s ease forwards;
}
.site-card:hover { background:var(--surf2); border-color:var(--bdr2); transform:translateY(-2px); box-shadow:0 8px 24px rgba(0,0,0,.25); }
.site-card:active { transform:translateY(0); }

.site-icon { width:28px; height:28px; border-radius:6px; object-fit:contain; flex-shrink:0; background:var(--bdr); }
.site-icon-fb {
  width:28px; height:28px; border-radius:6px; flex-shrink:0;
  background:var(--acc-glow); border:1px solid var(--bdr2);
  display:flex; align-items:center; justify-content:center;
  font-size:.75rem; font-weight:500; color:var(--acc);
}
.site-info { min-width:0; }
.site-name { font-size:.85rem; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.site-desc { font-size:.7rem; color:var(--txt3); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; margin-top:2px; }

/* ---- 加载 ---- */
.loading { display:flex; flex-direction:column; align-items:center; gap:12px; padding:60px 0; color:var(--txt3); font-size:.85rem; }
.spinner { width:32px; height:32px; border:2px solid var(--bdr); border-top-color:var(--acc); border-radius:50%; animation:spin .8s linear infinite; }

/* ---- 底部 ---- */
.foot { text-align:center; padding:40px 24px 24px; }
.foot-link { font-size:.75rem; color:var(--txt3); text-decoration:none; letter-spacing:.05em; transition:color .2s; }
.foot-link:hover { color:var(--acc); }

/* ---- 动画 ---- */
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes fadeUp  { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }
@keyframes spin    { to{transform:rotate(360deg)} }

/* ---- 响应式 ---- */
@media(max-width:640px){
  .container{padding:40px 16px 24px}
  .greeting{font-size:1.5rem}
  .time{font-size:2.5rem}
  .engine-sel{min-width:75px;font-size:.7rem;padding:10px 8px 10px 10px}
  .search-input{font-size:.85rem;padding:10px 10px}
  .sites-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}
  .site-card{padding:10px 12px;gap:10px}
  .site-icon,.site-icon-fb{width:24px;height:24px}
}