/* 冰冰的快乐旅途 — 紫色浪漫主题 */
:root {
  --purple-1: #7c3aed;
  --purple-2: #a78bfa;
  --purple-3: #ede9fe;
  --purple-4: #f5f3ff;
  --ink: #3b3654;
  --ink-soft: #7a748f;
  --gold: #d4a574;
  --white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(124,58,237,.08);
  --shadow-md: 0 8px 30px rgba(124,58,237,.12);
  --shadow-lg: 0 20px 60px rgba(124,58,237,.18);
  --radius: 16px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
  background: linear-gradient(180deg, var(--purple-4) 0%, #faf8ff 40%, #fff 100%);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.8;
}
a { color:inherit; text-decoration:none; }
.hidden { display:none !important; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top:0; z-index:100;
  backdrop-filter: blur(16px);
  background: rgba(255,255,255,.82);
  border-bottom: 1px solid rgba(124,58,237,.08);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  max-width: 1100px; margin:0 auto; padding: 14px 20px;
  display:flex; align-items:center; gap: 24px;
}
.brand { display:flex; align-items:center; gap:10px; font-weight:700; font-size:18px; }
.brand-icon { font-size:24px; }
.brand-text {
  background: linear-gradient(120deg, var(--purple-1), var(--purple-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.nav-tabs { display:flex; gap:6px; flex:1; }
.nav-tab {
  padding: 7px 18px; border-radius: 99px; font-size:14px;
  color: var(--ink-soft); transition: all .25s;
}
.nav-tab:hover { background: var(--purple-3); color: var(--purple-1); }
.nav-tab.active {
  background: linear-gradient(120deg, var(--purple-1), #8b5cf6);
  color:#fff; box-shadow: 0 4px 14px rgba(124,58,237,.3);
}
.header-actions { display:flex; align-items:center; gap:10px; }
.user-badge {
  font-size:13px; color: var(--purple-1); background: var(--purple-3);
  padding: 5px 14px; border-radius: 99px;
}

/* ---------- Buttons ---------- */
.btn {
  border:none; cursor:pointer; font-size:14px; border-radius:12px;
  padding: 9px 20px; transition: all .25s; font-family:inherit;
}
.btn-primary {
  background: linear-gradient(120deg, var(--purple-1), #8b5cf6);
  color:#fff; box-shadow: 0 4px 14px rgba(124,58,237,.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(124,58,237,.4); }
.btn-ghost { background:transparent; color: var(--ink-soft); border:1px solid rgba(124,58,237,.2); }
.btn-ghost:hover { background: var(--purple-3); color: var(--purple-1); }
.btn-danger { background:#fef2f2; color:#dc2626; border:1px solid #fecaca; }
.btn-sm { padding: 5px 12px; font-size:12px; border-radius:8px; }

/* ---------- Hero ---------- */
.hero { text-align:center; padding: 56px 20px 36px; }
.hero h1 {
  font-size: clamp(28px, 5vw, 44px); font-weight: 800; letter-spacing: 2px;
  background: linear-gradient(120deg, var(--purple-1), var(--purple-2), var(--gold));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p { color: var(--ink-soft); margin-top:12px; font-size:15px; letter-spacing:1px; }
.hero .hero-divider { margin:24px auto 0; width:80px; height:3px; border-radius:2px;
  background: linear-gradient(90deg, var(--purple-2), var(--gold)); }

/* ---------- Grid & Cards ---------- */
.grid-wrap { max-width:1100px; margin:0 auto; padding: 10px 20px 60px; }
.card-grid {
  display:grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.card {
  background:#fff; border-radius: var(--radius); overflow:hidden;
  box-shadow: var(--shadow-sm); transition: all .3s; cursor:pointer;
  border: 1px solid rgba(124,58,237,.06);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-cover {
  width:100%; aspect-ratio: 4/3; object-fit:cover; display:block;
  background: linear-gradient(135deg, var(--purple-3), var(--purple-4));
}
.card-cover-fallback {
  width:100%; aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--purple-3), var(--purple-4));
  font-size:48px;
}
.card-body { padding: 18px 20px 20px; }
.card-meta { display:flex; align-items:center; gap:8px; font-size:12px; color:var(--ink-soft); margin-bottom:8px; }
.cat-tag { padding:2px 10px; border-radius:99px; font-size:11px; }
.cat-lvtu { background: var(--purple-3); color: var(--purple-1); }
.cat-xinqing { background:#fef3e8; color:#c2703d; }
.card-title { font-size:17px; font-weight:700; line-height:1.5; margin-bottom:8px; }
.card-excerpt { font-size:13px; color:var(--ink-soft); display:-webkit-box;
  -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.card-foot { display:flex; justify-content:space-between; margin-top:12px; font-size:12px; color:var(--ink-soft); }

/* ---------- Pagination ---------- */
.pager { display:flex; justify-content:center; gap:8px; margin-top:36px; flex-wrap:wrap; }
.pager button {
  min-width:40px; height:40px; border-radius:10px; border:1px solid rgba(124,58,237,.15);
  background:#fff; color:var(--ink); cursor:pointer; font-size:14px; transition:all .2s;
}
.pager button.on { background: var(--purple-1); color:#fff; border-color:var(--purple-1); }
.pager button:hover:not(.on) { background: var(--purple-3); }

/* ---------- Article ---------- */
.article-wrap { max-width:760px; margin:0 auto; padding: 40px 20px 80px; }
.article-header { text-align:center; margin-bottom:36px; }
.article-header h1 { font-size: clamp(22px, 4vw, 32px); line-height:1.5; margin:16px 0 12px; }
.article-header .meta { color:var(--ink-soft); font-size:14px; }
.article-body .text-block {
  font-size:16px; line-height:2.1; margin-bottom:14px; color:var(--ink);
  letter-spacing:.5px;
}
.article-body .img-block {
  margin: 18px 0; border-radius: 14px; overflow:hidden;
  box-shadow: var(--shadow-sm); cursor: zoom-in;
}
.article-body .img-block img { width:100%; display:block; transition: transform .4s; }
.article-body .img-block:hover img { transform: scale(1.01); }
.article-body .video-block { margin: 18px 0; }
.article-body .video-block video { width: 100%; display: block; border-radius: 10px; background: #000; }
.back-link { display:inline-block; margin-bottom:20px; color:var(--purple-1); font-size:14px; }
.back-link:hover { text-decoration:underline; }

/* ---------- Comments ---------- */
.comments-section { margin-top:56px; border-top: 2px dashed var(--purple-3); padding-top:36px; }
.comments-section h2 { font-size:20px; margin-bottom:20px; }
.comment-form textarea {
  width:100%; min-height:96px; border-radius:12px; border:1.5px solid rgba(124,58,237,.2);
  padding:14px 16px; font-size:15px; font-family:inherit; resize:vertical;
  background: var(--purple-4); transition: all .2s;
}
.comment-form textarea:focus { outline:none; border-color: var(--purple-1); background:#fff;
  box-shadow: 0 0 0 4px rgba(124,58,237,.08); }
.comment-form .form-row { display:flex; justify-content:flex-end; margin-top:12px; gap:10px; }
.comment-item {
  background:#fff; border-radius:14px; padding:16px 20px; margin-top:14px;
  border:1px solid rgba(124,58,237,.07); box-shadow: var(--shadow-sm);
}
.comment-head { display:flex; align-items:center; gap:10px; font-size:13px; }
.comment-avatar {
  width:34px; height:34px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--purple-2), var(--purple-1)); color:#fff; font-size:15px;
}
.comment-name { font-weight:600; color:var(--ink); }
.comment-time { color:var(--ink-soft); font-size:12px; }
.comment-content { margin-top:10px; font-size:14.5px; line-height:1.9; white-space:pre-wrap; word-break:break-word; }
.comment-actions { margin-top:8px; display:flex; gap:10px; }
.comment-actions button { background:none; border:none; font-size:12px; cursor:pointer; color:var(--ink-soft); }
.comment-actions button:hover { color: var(--purple-1); }

/* ---------- Lightbox ---------- */
.lightbox {
  position:fixed; inset:0; z-index:999; background:rgba(20,10,40,.9);
  display:flex; align-items:center; justify-content:center; cursor:zoom-out; padding:20px;
}
.lightbox img { max-width:96vw; max-height:92vh; border-radius:10px; box-shadow: var(--shadow-lg); }

/* ---------- Login ---------- */
.login-page {
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background: radial-gradient(1200px 600px at 20% 10%, var(--purple-3), transparent),
              radial-gradient(1000px 500px at 90% 90%, #fdeef4, transparent),
              var(--purple-4);
  padding:20px;
}
.login-card {
  width:100%; max-width:400px; background:rgba(255,255,255,.92); backdrop-filter: blur(10px);
  border-radius:24px; padding:44px 36px; box-shadow: var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.login-card .logo { text-align:center; font-size:44px; margin-bottom:8px; }
.login-card h1 { text-align:center; font-size:22px; margin-bottom:6px;
  background: linear-gradient(120deg, var(--purple-1), var(--purple-2));
  -webkit-background-clip:text; background-clip:text; color:transparent; }
.login-card .sub { text-align:center; color:var(--ink-soft); font-size:13px; margin-bottom:28px; }
.field { margin-bottom:16px; }
.field label { display:block; font-size:13px; color:var(--ink-soft); margin-bottom:6px; }
.field input {
  width:100%; padding:12px 16px; border-radius:12px; border:1.5px solid rgba(124,58,237,.2);
  font-size:15px; background:var(--purple-4); transition:all .2s; font-family:inherit;
}
.field input:focus { outline:none; border-color:var(--purple-1); background:#fff;
  box-shadow: 0 0 0 4px rgba(124,58,237,.08); }
.login-card .btn-primary { width:100%; margin-top:8px; padding:13px; font-size:15px; }
.login-msg { text-align:center; font-size:13px; margin-top:14px; min-height:20px; }
.login-msg.err { color:#dc2626; } .login-msg.ok { color:var(--purple-1); }
.login-switch { text-align:center; margin-top:18px; font-size:13px; color:var(--ink-soft); }
.login-switch a { color:var(--purple-1); cursor:pointer; }

/* ---------- Admin ---------- */
.admin-wrap { max-width:1000px; margin:0 auto; padding:30px 20px 80px; }
.stat-cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:16px; margin-bottom:30px; }
.stat-card { background:#fff; border-radius:var(--radius); padding:22px; box-shadow:var(--shadow-sm);
  border:1px solid rgba(124,58,237,.06); }
.stat-card .num { font-size:30px; font-weight:800; color:var(--purple-1); }
.stat-card .lbl { font-size:13px; color:var(--ink-soft); margin-top:4px; }
.admin-section { background:#fff; border-radius:var(--radius); padding:24px; margin-bottom:24px;
  box-shadow:var(--shadow-sm); border:1px solid rgba(124,58,237,.06); }
.admin-section h2 { font-size:18px; margin-bottom:16px; }
.table { width:100%; border-collapse:collapse; font-size:14px; }
.table th, .table td { text-align:left; padding:10px 12px; border-bottom:1px solid var(--purple-3); }
.table th { color:var(--ink-soft); font-size:12px; font-weight:600; }
.editor-blocks textarea { width:100%; margin-bottom:8px; min-height:60px; border-radius:8px;
  border:1px solid rgba(124,58,237,.2); padding:8px 12px; font-family:inherit; font-size:13px; }

/* ---------- Footer ---------- */
.site-footer { text-align:center; padding:30px 20px 40px; color:var(--ink-soft); font-size:13px; }

/* ---------- Toast ---------- */
.toast {
  position:fixed; left:50%; bottom:40px; transform:translateX(-50%);
  background:var(--ink); color:#fff; padding:12px 26px; border-radius:99px;
  font-size:14px; z-index:1000; box-shadow: var(--shadow-lg); animation: fadeUp .3s;
}
@keyframes fadeUp { from { opacity:0; transform:translate(-50%, 10px);} to { opacity:1; transform:translate(-50%,0);} }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .header-inner { flex-wrap:wrap; gap:10px; padding:12px 14px; }
  .nav-tabs { order:3; width:100%; justify-content:center; }
  .hero { padding:36px 16px 24px; }
  .card-grid { grid-template-columns: 1fr; }
  .admin-wrap { padding: 20px 12px 60px; }
}

/* ---------- 搜索框 ---------- */
.search-box { margin-left:auto; }
.search-box input {
  width: 190px; padding: 8px 14px; border-radius: 20px;
  border: 1px solid rgba(124,58,237,.35); background: rgba(255,255,255,.9);
  font-size: 14px; outline: none; transition: all .25s;
}
.search-box input:focus {
  width: 240px; border-color: #7c3aed;
  box-shadow: 0 0 0 3px rgba(124,58,237,.12);
}
.search-empty { text-align:center; color:#888; padding: 30px 0; font-size: 15px; }
@media (max-width: 767px) {
  .search-box { order:4; width:100%; margin:0; }
  .search-box input, .search-box input:focus { width:100%; }
}