/* ============================================================
   aiyaen 的数字花园 · 深蓝夜空主题
   深靛蓝底色 + Canvas 星点 + 青/紫渐变点缀 + 等宽字体
   ============================================================ */

:root {
  --bg-0: #060a18;
  --bg-1: #0b1026;
  --bg-2: #111737;
  --card: rgba(17, 23, 55, 0.62);
  --card-border: rgba(120, 140, 255, 0.14);
  --card-border-hi: rgba(102, 224, 255, 0.45);
  --text-0: #e8ecff;
  --text-1: #aab3d6;
  --text-2: #6b76a3;
  --cyan: #66e0ff;
  --violet: #a78bfa;
  --pink: #f0abfc;
  --grad: linear-gradient(120deg, #66e0ff, #a78bfa);
  --ok: #34d399;
  --err: #fb7185;
  --mono: "JetBrains Mono", "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 34px rgba(2, 6, 23, 0.55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1100px 500px at 80% -10%, rgba(102, 224, 255, 0.07), transparent 60%),
    radial-gradient(900px 600px at 10% 20%, rgba(167, 139, 250, 0.08), transparent 60%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 45%, var(--bg-0) 100%);
  background-attachment: fixed;
  color: var(--text-0);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(102, 224, 255, 0.28); }

.mono { font-family: var(--mono); }

/* ---------- 背景层 ---------- */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.aurora {
  position: fixed;
  inset: -20% -10% auto -10%;
  height: 60vh;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(40% 60% at 25% 40%, rgba(102, 224, 255, 0.06), transparent 70%),
    radial-gradient(45% 55% at 70% 30%, rgba(167, 139, 250, 0.07), transparent 70%);
  filter: blur(30px);
  animation: aurora-drift 18s ease-in-out infinite alternate;
}
@keyframes aurora-drift {
  from { transform: translate3d(-2%, -1%, 0) rotate(-1deg); }
  to   { transform: translate3d(2%, 2%, 0) rotate(1deg); }
}
.site-header, .site-main, .site-footer, .flash-area, .admin-shell, .login-wrap {
  position: relative;
  z-index: 1;
}

/* ---------- 布局 ---------- */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 22px;
}
.container.narrow { max-width: 780px; }

.site-main { padding: 34px 0 70px; min-height: 60vh; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}
.hover-lift {
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.hover-lift:hover {
  transform: translateY(-3px);
  border-color: var(--card-border-hi);
  box-shadow: 0 16px 44px rgba(2, 6, 23, 0.65), 0 0 22px rgba(102, 224, 255, 0.07);
}
.hover-glow { transition: color 0.2s ease, text-shadow 0.2s ease, border-color 0.2s ease; }
.hover-glow:hover {
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(102, 224, 255, 0.55);
}

/* ---------- 头部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(6, 10, 24, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-0);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-name { font-size: 1.05rem; }
.site-nav { display: flex; gap: 6px; }
.site-nav a {
  position: relative;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  color: var(--text-1);
  text-decoration: none;
  font-size: 0.94rem;
  transition: color 0.2s ease, background 0.2s ease, text-shadow 0.2s ease;
}
.site-nav a:hover {
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(102, 224, 255, 0.5);
}
.site-nav a.active {
  color: var(--text-0);
  background: rgba(102, 224, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(102, 224, 255, 0.22);
}

/* ---------- Flash 消息 ---------- */
.flash-area { margin-top: 18px; display: grid; gap: 10px; }
.flash {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: var(--card);
  font-size: 0.93rem;
}
.flash-dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.flash-success { border-color: rgba(52, 211, 153, 0.4); }
.flash-success .flash-dot { background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.flash-error { border-color: rgba(251, 113, 133, 0.4); }
.flash-error .flash-dot { background: var(--err); box-shadow: 0 0 10px var(--err); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--grad);
  color: #061021;
  box-shadow: 0 4px 18px rgba(102, 224, 255, 0.22);
}
.btn-primary:hover {
  box-shadow: 0 6px 26px rgba(140, 170, 255, 0.4), 0 0 18px rgba(102, 224, 255, 0.35);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border-color: var(--card-border);
}
.btn-ghost:hover {
  color: var(--cyan);
  border-color: var(--card-border-hi);
  box-shadow: 0 0 14px rgba(102, 224, 255, 0.12);
}
.btn-danger {
  background: rgba(251, 113, 133, 0.1);
  color: var(--err);
  border-color: rgba(251, 113, 133, 0.35);
}
.btn-danger:hover { background: rgba(251, 113, 133, 0.2); box-shadow: 0 0 14px rgba(251, 113, 133, 0.25); }
.btn-sm { padding: 7px 14px; font-size: 0.88rem; }
.btn-xs { padding: 4px 11px; font-size: 0.82rem; border-radius: 7px; }
.btn-block { width: 100%; }
.inline-form { display: inline; }

/* ---------- Hero ---------- */
.hero { padding: 66px 0 40px; text-align: center; }
.hero-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: rgba(102, 224, 255, 0.06);
  color: var(--cyan);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}
.hero-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 6vw, 3.2rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  min-height: 1.25em;
}
.caret {
  display: inline-block;
  width: 3px;
  height: 0.9em;
  margin-left: 4px;
  vertical-align: -0.08em;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: caret-blink 0.9s steps(2) infinite;
}
@keyframes caret-blink { 50% { opacity: 0; } }
.hero-sub { color: var(--text-1); margin: 0 0 28px; font-size: 1.05rem; }
.hero-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ---------- 终端卡片 ---------- */
.terminal-card { overflow: hidden; margin-top: 12px; }
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--card-border);
  background: rgba(6, 10, 24, 0.5);
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; }
.t-red { background: #f87171; } .t-yellow { background: #fbbf24; } .t-green { background: #34d399; }
.terminal-title { margin-left: 8px; color: var(--text-2); font-size: 0.8rem; }
.terminal-body { padding: 18px 20px; font-size: 0.9rem; line-height: 2; }
.terminal-body p { margin: 0; }
.t-prompt { color: var(--cyan); margin-right: 8px; }
.t-out { color: var(--text-0); padding-left: 18px; }
.t-dim { color: var(--text-2); }

/* ---------- 区块 ---------- */
.section { margin-top: 46px; }
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.section-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before {
  content: "";
  width: 4px; height: 18px;
  border-radius: 2px;
  background: var(--grad);
  box-shadow: 0 0 10px rgba(102, 224, 255, 0.5);
}
.section-more { color: var(--text-2); text-decoration: none; font-size: 0.85rem; }
.section-more:hover { color: var(--cyan); text-shadow: 0 0 10px rgba(102, 224, 255, 0.5); }

/* ---------- 文章列表 ---------- */
.post-list { display: grid; gap: 16px; }
.post-item { overflow: hidden; }
.post-link {
  display: block;
  padding: 20px 22px;
  text-decoration: none;
  color: inherit;
}
.post-title {
  margin: 0 0 8px;
  font-size: 1.16rem;
  font-weight: 700;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}
.post-item:hover .post-title { color: var(--cyan); text-shadow: 0 0 16px rgba(102, 224, 255, 0.35); }
.post-excerpt {
  margin: 0 0 12px;
  color: var(--text-1);
  font-size: 0.93rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-2);
  font-size: 0.8rem;
}
.meta-arrow { color: var(--text-2); transition: color 0.2s ease; }
.post-item:hover .meta-arrow { color: var(--violet); }

/* ---------- 页面头 ---------- */
.page-head { padding: 34px 0 24px; }
.page-title { margin: 0 0 6px; font-size: 2rem; font-weight: 800; }
.page-sub { margin: 0; color: var(--text-2); font-size: 0.85rem; }

/* ---------- 空状态 ---------- */
.empty-state { padding: 44px 24px; text-align: center; color: var(--text-1); }
.empty-icon {
  font-size: 1.9rem;
  color: var(--cyan);
  text-shadow: 0 0 18px rgba(102, 224, 255, 0.6);
  margin-bottom: 10px;
}
.empty-state p { margin: 4px 0; }
.empty-sub { color: var(--text-2); font-size: 0.9rem; margin-bottom: 16px !important; }
.empty-mini { padding: 18px; text-align: center; color: var(--text-2); font-size: 0.92rem; }

/* ---------- 友链 ---------- */
.friend-links { padding: 18px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.friend-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  color: var(--text-1);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.friend-link:hover { border-color: var(--card-border-hi); transform: translateY(-2px); }
.friend-avatar {
  width: 32px; height: 32px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 9px;
  background: rgba(102, 224, 255, 0.1);
  border: 1px solid rgba(102, 224, 255, 0.3);
  color: var(--cyan);
  font-size: 0.85rem;
}
.friend-link-apply .friend-avatar { background: rgba(167, 139, 250, 0.1); border-color: rgba(167, 139, 250, 0.35); color: var(--violet); }

/* ---------- 统计小字 ---------- */
.site-stats {
  margin-top: 46px;
  text-align: center;
  color: var(--text-2);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 26px 0 34px;
  text-align: center;
}
.footer-line { color: var(--text-1); font-size: 0.9rem; }
.footer-sub { margin-top: 6px; color: var(--text-2); font-size: 0.78rem; }
.footer-sep { margin: 0 8px; color: var(--text-2); }

/* ---------- 正文排版 ---------- */
.post-full { padding: 34px 38px; }
.post-full-head { margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid var(--card-border); }
.post-full-title { margin: 0 0 10px; font-size: 1.9rem; font-weight: 800; line-height: 1.35; }

.prose { word-break: break-word; }
.prose p { margin: 0 0 1.1em; color: var(--text-0); }
.prose h1, .prose h2, .prose h3, .prose h4 { margin: 1.6em 0 0.6em; line-height: 1.4; font-weight: 700; }
.prose h1 { font-size: 1.5rem; } .prose h2 { font-size: 1.3rem; } .prose h3 { font-size: 1.12rem; }
.prose a { color: var(--cyan); text-decoration: none; border-bottom: 1px dashed rgba(102, 224, 255, 0.4); }
.prose a:hover { text-shadow: 0 0 10px rgba(102, 224, 255, 0.5); border-bottom-style: solid; }
.prose ul, .prose ol { margin: 0 0 1.1em; padding-left: 1.5em; color: var(--text-1); }
.prose li { margin: 0.3em 0; }
.prose blockquote {
  margin: 0 0 1.1em;
  padding: 10px 18px;
  border-left: 3px solid;
  border-image: linear-gradient(180deg, var(--cyan), var(--violet)) 1;
  background: rgba(102, 224, 255, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-1);
}
.prose code {
  font-family: var(--mono);
  font-size: 0.86em;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(102, 224, 255, 0.09);
  border: 1px solid rgba(102, 224, 255, 0.18);
  color: var(--pink);
}
.prose pre {
  margin: 0 0 1.2em;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: #070c1e;
  overflow-x: auto;
  box-shadow: inset 0 0 24px rgba(0, 0, 0, 0.4);
}
.prose pre code {
  background: none; border: none; padding: 0;
  color: #c7d2fe; font-size: 0.86rem; line-height: 1.7;
}
.prose img { max-width: 100%; border-radius: var(--radius-sm); }
.prose hr { border: none; border-top: 1px dashed var(--card-border); margin: 1.6em 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 0 0 1.1em; font-size: 0.92rem; }
.prose th, .prose td { border: 1px solid var(--card-border); padding: 7px 12px; }
.prose th { background: rgba(102, 224, 255, 0.07); }

/* ---------- 评论区 ---------- */
.comments-section { margin-top: 34px; }
.comment-list { list-style: none; margin: 0 0 22px; padding: 0; display: grid; gap: 14px; }
.comment-item { padding: 16px 20px; }
.comment-admin { border-color: rgba(167, 139, 250, 0.4); box-shadow: 0 0 18px rgba(167, 139, 250, 0.08); }
.comment-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.comment-avatar {
  width: 30px; height: 30px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(102, 224, 255, 0.1);
  border: 1px solid rgba(102, 224, 255, 0.3);
  color: var(--cyan);
  font-size: 0.85rem;
}
.comment-admin .comment-avatar { background: rgba(167, 139, 250, 0.12); border-color: rgba(167, 139, 250, 0.4); color: var(--violet); }
.comment-author { font-weight: 700; font-size: 0.95rem; }
.comment-time { margin-left: auto; color: var(--text-2); font-size: 0.78rem; }
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.badge-admin { background: rgba(167, 139, 250, 0.14); border: 1px solid rgba(167, 139, 250, 0.4); color: var(--violet); }
.badge-ok { background: rgba(52, 211, 153, 0.12); border: 1px solid rgba(52, 211, 153, 0.4); color: var(--ok); }
.badge-dim { background: rgba(107, 118, 163, 0.12); border: 1px solid rgba(107, 118, 163, 0.4); color: var(--text-2); }
.comment-body { font-size: 0.95rem; color: var(--text-1); }
.comment-body p:last-child { margin-bottom: 0; }

/* ---------- 表单 ---------- */
.comment-form, .edit-form { padding: 24px 26px; }
.comment-form-title { margin: 0 0 16px; font-size: 1.15rem; }
.form-row { margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 7px; font-size: 0.9rem; color: var(--text-1); font-weight: 600; }
.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: rgba(6, 10, 24, 0.6);
  color: var(--text-0);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.form-input:focus {
  outline: none;
  border-color: var(--card-border-hi);
  box-shadow: 0 0 0 3px rgba(102, 224, 255, 0.12), 0 0 16px rgba(102, 224, 255, 0.1);
}
textarea.form-input { resize: vertical; min-height: 90px; }
.form-hint { margin: 7px 0 0; color: var(--text-2); font-size: 0.78rem; }
.form-hint-inline { color: var(--text-2); font-size: 0.78rem; font-weight: 400; }
.form-check-row { display: flex; align-items: center; gap: 10px; }
.form-check-row input[type="checkbox"] { width: 17px; height: 17px; accent-color: var(--cyan); }
.form-check-row label { color: var(--text-0); cursor: pointer; }
.form-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.form-msg { font-size: 0.84rem; color: var(--text-2); }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: var(--err); }
.editor-textarea { line-height: 1.7; font-size: 0.9rem; }

/* ---------- 回到顶部 ---------- */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 30;
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(11, 16, 38, 0.85);
  color: var(--text-1);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease, color 0.2s ease, box-shadow 0.2s ease;
  backdrop-filter: blur(8px);
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { color: var(--cyan); box-shadow: 0 0 18px rgba(102, 224, 255, 0.25); }

/* ============================================================
   后台
   ============================================================ */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 218px;
  flex: none;
  display: flex;
  flex-direction: column;
  padding: 20px 14px;
  border-right: 1px solid var(--card-border);
  background: rgba(6, 10, 24, 0.6);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  height: 100vh;
}
.admin-brand { padding: 4px 10px 18px; }
.admin-nav { display: grid; gap: 4px; }
.admin-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 13px;
  border-radius: var(--radius-sm);
  color: var(--text-1);
  text-decoration: none;
  font-size: 0.93rem;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.admin-nav a:hover { color: var(--cyan); background: rgba(102, 224, 255, 0.06); }
.admin-nav a.active {
  color: var(--text-0);
  background: rgba(102, 224, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(102, 224, 255, 0.25);
}
.admin-sidebar-foot { margin-top: auto; display: grid; gap: 10px; }
.admin-view-site {
  text-align: center;
  color: var(--text-2);
  font-size: 0.8rem;
  text-decoration: none;
}
.admin-view-site:hover { color: var(--cyan); }

.admin-main { flex: 1; min-width: 0; padding: 30px 34px 60px; }
.admin-page { max-width: 1020px; margin: 0 auto; }
.admin-page-narrow { max-width: 820px; }
.admin-page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.admin-page-title { margin: 0 0 4px; font-size: 1.6rem; font-weight: 800; }
.admin-page-sub { margin: 0; color: var(--text-2); font-size: 0.82rem; }

/* 统计卡片 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}
.stat-card { padding: 18px 20px; }
.stat-label { color: var(--text-2); font-size: 0.78rem; letter-spacing: 0.06em; }
.stat-value {
  font-size: 2rem;
  font-weight: 800;
  margin: 6px 0 4px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-foot { color: var(--text-2); font-size: 0.78rem; }
.stat-foot a { color: var(--cyan); text-decoration: none; }
.stat-foot a:hover { text-shadow: 0 0 10px rgba(102, 224, 255, 0.5); }

/* 图表卡片 */
.chart-card { padding: 22px 24px; margin-bottom: 22px; }
.card-title { margin: 0 0 18px; font-size: 1.05rem; font-weight: 700; }
.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 190px;
  padding-top: 10px;
}
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; min-width: 0; }
.bar-pair {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
}
.bar {
  width: 16px;
  min-height: 3px;
  border-radius: 4px 4px 0 0;
  transition: height 0.6s ease;
}
.bar-pv { background: linear-gradient(180deg, var(--cyan), rgba(102, 224, 255, 0.25)); box-shadow: 0 0 12px rgba(102, 224, 255, 0.3); }
.bar-uv { background: linear-gradient(180deg, var(--violet), rgba(167, 139, 250, 0.25)); box-shadow: 0 0 12px rgba(167, 139, 250, 0.25); }
.bar-values { display: flex; gap: 8px; font-size: 0.68rem; color: var(--text-2); margin-top: 6px; }
.bar-label { font-size: 0.72rem; color: var(--text-2); margin-top: 3px; white-space: nowrap; }
.chart-legend { display: flex; gap: 18px; justify-content: center; margin-top: 14px; font-size: 0.78rem; }
.legend-pv { color: var(--cyan); }
.legend-uv { color: var(--violet); }

/* 表格 */
.table-card { padding: 22px 24px; }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.admin-table th {
  text-align: left;
  padding: 9px 12px;
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}
.admin-table td { padding: 10px 12px; border-bottom: 1px solid rgba(120, 140, 255, 0.07); vertical-align: middle; }
.admin-table tbody tr:hover { background: rgba(102, 224, 255, 0.04); }
.admin-table .nowrap { white-space: nowrap; }
.admin-table .strong { font-weight: 600; }
.path-cell {
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-1);
}

/* 后台留言列表 */
.filter-tabs { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.filter-tab {
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  color: var(--text-1);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.filter-tab:hover { color: var(--cyan); border-color: var(--card-border-hi); }
.filter-tab.active {
  color: #061021;
  background: var(--grad);
  border-color: transparent;
  font-weight: 700;
}
.admin-comment-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.admin-comment-item { padding: 16px 20px; }
.comment-actions { display: flex; gap: 10px; margin-top: 12px; }

/* 登录页 */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card { width: 100%; max-width: 380px; padding: 34px 32px; text-align: center; }
.login-mark { margin-bottom: 12px; }
.login-title { margin: 0 0 4px; font-size: 1.4rem; font-weight: 800; }
.login-sub { margin: 0 0 22px; color: var(--text-2); font-size: 0.82rem; }
.login-card .flash { text-align: left; margin-bottom: 16px; }
.login-back { display: inline-block; margin-top: 16px; color: var(--text-2); font-size: 0.8rem; text-decoration: none; }
.login-back:hover { color: var(--cyan); }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .friend-links { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .admin-shell { flex-direction: column; }
  .admin-sidebar {
    width: 100%;
    height: auto;
    position: static;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 16px;
    border-right: none;
    border-bottom: 1px solid var(--card-border);
  }
  .admin-brand { padding: 0; }
  .admin-nav { display: flex; gap: 4px; flex-wrap: wrap; }
  .admin-sidebar-foot { margin: 0 0 0 auto; display: flex; align-items: center; gap: 10px; }
  .admin-main { padding: 22px 18px 50px; }
  .post-full { padding: 24px 20px; }
  .comment-form, .edit-form { padding: 18px 16px; }
  .bar { width: 11px; }
  .bar-chart { gap: 7px; height: 160px; }
}
@media (max-width: 480px) {
  .header-inner { height: auto; padding: 10px 0; flex-direction: column; gap: 8px; }
  .hero { padding: 44px 0 30px; }
  .site-nav a { padding: 5px 10px; font-size: 0.9rem; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .friend-links { grid-template-columns: 1fr; }
  .bar-values { flex-direction: column; gap: 0; align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}