/* ==========================================================================
   全局样式 · 响应式 + 深色模式
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-elevated: #ffffff;
  --text: #1f2328;
  --text-soft: #57606a;
  --text-faint: #8b949e;
  --border: #e5e7eb;
  --border-strong: #d0d7de;

  --accent: #6366f1;
  --accent-strong: #4f46e5;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(99, 102, 241, 0.10);

  --code-bg: #f6f8fa;
  --inline-code-bg: rgba(99, 102, 241, 0.10);
  --inline-code-text: #c026d3;

  --tok-com: #6e7781;
  --tok-str: #0a3069;
  --tok-num: #0550ae;
  --tok-kw: #cf222e;
  --tok-fn: #8250df;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-sm: 8px;

  --header-row-h: 60px;   /* 主导航行高度 */
  --header-h: 60px;       /* 页头总高度（含公告，JS 动态更新） */
  --content-w: 720px;
  --container-w: 1120px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code",
    Consolas, "Courier New", monospace;
}

[data-theme="dark"] {
  --bg: #0d1117;
  --bg-soft: #151b23;
  --bg-elevated: #1b222c;
  --text: #e6edf3;
  --text-soft: #9da7b3;
  --text-faint: #6e7681;
  --border: #2d333b;
  --border-strong: #3a424d;

  --accent: #8b93ff;
  --accent-strong: #a5acff;
  --accent-contrast: #0d1117;
  --accent-soft: rgba(139, 147, 255, 0.16);

  --code-bg: #151b23;
  --inline-code-bg: rgba(139, 147, 255, 0.14);
  --inline-code-text: #f0b0ff;

  --tok-com: #8b949e;
  --tok-str: #a5d6ff;
  --tok-num: #79c0ff;
  --tok-kw: #ff7b72;
  --tok-fn: #d2a8ff;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
}

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }

/* 确保 hidden 属性始终生效（避免被 display:flex 等覆盖） */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; scrollbar-gutter: stable; }
html.cover-locked { overflow: hidden; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img, video { max-width: 100%; height: auto; }

h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; }
code, pre { font-family: var(--font-mono); }

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }

.muted { color: var(--text-faint); }
.dot { margin: 0 6px; color: var(--text-faint); }

/* ---------- 阅读进度条 ---------- */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #a855f7);
  z-index: 1000;
  transition: width 0.1s linear;
}

/* ---------- 页头（始终固定在顶部） ---------- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header {
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-row-h);
  display: flex;
  align-items: center;
  gap: 20px;
}

/* 公告气泡：浮在封面上，50% 透明度 */
.announcement-anchor {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  width: min(560px, calc(100% - 40px));
}
.announcement-bubble {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px 10px 18px;
  border-radius: 999px;
  background: rgba(18, 20, 24, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 13px;
  color: #fff;
  opacity: 0.5;
  transition: opacity 0.2s ease;
}
.announcement-bubble:hover { opacity: 0.92; }
.announcement-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}
.announcement-close {
  flex: none;
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s ease;
}
.announcement-close:hover { background: var(--accent); color: var(--accent-contrast); }

/* 公告页卡片 */
.announcement-page { max-width: var(--content-w); margin: 0 auto; padding: 40px 20px 60px; }
.announcement-page h1 { margin: 0 0 24px; font-size: 30px; }
.announcement-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
}
.announcement-card-text { font-size: 16px; line-height: 1.7; }
.announcement-card-date { font-size: 13px; color: var(--text-faint); }

.brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }

.nav { display: flex; gap: 4px; }
.nav a {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-size: 15px;
}
.nav a:hover { color: var(--text); background: var(--bg-soft); text-decoration: none; }
.nav a.active { color: var(--accent); background: var(--accent-soft); }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.search input {
  width: 180px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: width 0.25s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.search input::placeholder { color: var(--text-faint); }
.search input:focus {
  width: 240px;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg-soft);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, background 0.2s ease;
}
.icon-btn:hover { transform: rotate(20deg); background: var(--accent-soft); }

/* ---------- Hero（封面主图，固定整屏，下滑转场） ---------- */
.hero {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  height: calc(100vh - var(--header-h));
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  color: #fff;
  will-change: transform;
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
  /* 封面主图：位于站点根目录，CSS 相对路径需向上两级 */
  background-image: url("../../test.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero.cover-hidden {
  /* 封面整屏向上滑走（滑回时反向） */
  transform: translateY(calc(-100vh - 1px));
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.32) 0%, rgba(0, 0, 0, 0.12) 45%, rgba(0, 0, 0, 0.62) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 24px;
}
.hero h1 {
  margin: 0 0 14px;
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45);
}
.hero .slogan {
  margin: 0 0 16px;
  font-size: 20px;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.5);
}
.hero .desc {
  margin: 0 auto;
  max-width: 640px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.5);
}

/* 下滑指示 */
.scroll-down {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  letter-spacing: 2px;
  text-decoration: none;
}
.scroll-down:hover { color: #fff; text-decoration: none; }
.scroll-arrow { font-size: 22px; animation: bounce 1.6s infinite; }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(7px); }
}

/* ---------- 主布局 ---------- */
.main { max-width: var(--container-w); margin: 0 auto; padding: 36px 20px 60px; display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 40px; scroll-margin-top: var(--header-h); }

.section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0 0 18px;
}

/* ---------- 文章卡片 ---------- */
.post-list { display: flex; flex-direction: column; gap: 20px; }

.post-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.post-card-title { margin: 0 0 10px; font-size: 22px; }
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--accent); text-decoration: none; }

.post-card-meta { font-size: 13px; color: var(--text-faint); display: flex; align-items: center; margin-bottom: 12px; }

.post-card-excerpt {
  margin: 0 0 16px;
  color: var(--text-soft);
  font-size: 15px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- 标签/分类 Chip ---------- */
.chip {
  display: inline-block;
  padding: 3px 11px;
  font-size: 13px;
  border-radius: 20px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.chip:hover { background: var(--accent); color: var(--accent-contrast); text-decoration: none; }
.chip-cat { background: transparent; border-color: var(--border); color: var(--text-soft); }
.chip-cat:hover { background: var(--bg-soft); color: var(--text); border-color: var(--border-strong); }
.chip.active { background: var(--accent); color: var(--accent-contrast); border-color: var(--accent); }
.chip.active:hover { background: var(--accent); color: var(--accent-contrast); }
.chip-x { margin-left: 5px; font-weight: 800; opacity: 0.95; }

/* ---------- 侧边栏 ---------- */
.sidebar { display: flex; flex-direction: column; gap: 28px; }

.widget {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.widget h3 { margin: 0 0 14px; font-size: 15px; color: var(--text); }
.widget .chip { margin: 0 6px 8px 0; }

/* ---------- 空状态 ---------- */
.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-faint);
  font-size: 16px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ---------- 文章页 ---------- */
.article-wrap { max-width: var(--content-w); margin: 0 auto; padding: 40px 20px 60px; }

.article-header { margin-bottom: 28px; }

.article-meta-top { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }

.article-title {
  margin: 0 0 16px;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.25;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 14px;
  color: var(--text-faint);
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

/* ---------- 正文排版 ---------- */
.article-content { font-size: 17px; line-height: 1.85; }

.article-content p { margin: 0 0 1.2em; }
.article-content h1, .article-content h2, .article-content h3,
.article-content h4, .article-content h5, .article-content h6 {
  margin: 1.8em 0 0.8em;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.article-content h1 { font-size: 30px; }
.article-content h2 { font-size: 25px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.article-content h3 { font-size: 21px; }
.article-content h4 { font-size: 18px; }

.article-content a { border-bottom: 1px solid var(--accent-soft); }
.article-content a:hover { border-bottom-color: var(--accent); }

.article-content blockquote {
  margin: 1.4em 0;
  padding: 12px 20px;
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-soft);
}
.article-content blockquote p { margin: 0.4em 0; }

.article-content ul, .article-content ol { padding-left: 1.6em; margin: 0 0 1.2em; }
.article-content li { margin: 0.35em 0; }
.article-content li > p { margin: 0; }

.article-content hr {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 2em 0;
}

.article-content img {
  display: block;
  margin: 1.5em auto;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.article-content :not(pre) > code {
  background: var(--inline-code-bg);
  color: var(--inline-code-text);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.88em;
}

.article-content pre {
  position: relative;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 1.4em 0;
  line-height: 1.6;
}
.article-content pre code {
  font-size: 14px;
  background: transparent;
  color: var(--text);
  padding: 0;
  border-radius: 0;
  display: block;
}
.article-content .code-lang {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  pointer-events: none;
}

/* 代码高亮 token */
.tok-com { color: var(--tok-com); font-style: italic; }
.tok-str { color: var(--tok-str); }
.tok-num { color: var(--tok-num); }
.tok-kw { color: var(--tok-kw); font-weight: 600; }
.tok-fn { color: var(--tok-fn); }

/* 表格 */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 15px;
  overflow-x: auto;
  display: block;
}
.article-content th, .article-content td {
  border: 1px solid var(--border);
  padding: 9px 14px;
  text-align: left;
}
.article-content th { background: var(--bg-soft); font-weight: 700; }
.article-content tr:nth-child(even) td { background: var(--bg-soft); }

/* 媒体 */
.article-content .media {
  margin: 1.4em 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}
.article-content .media video,
.article-content .media audio { width: 100%; display: block; }
.article-content iframe {
  display: block;
  margin: 1.4em auto;
  border: none;
  border-radius: var(--radius-sm);
  max-width: 100%;
}

/* ---------- 上一篇/下一篇 ---------- */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.nav-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-item:hover { border-color: var(--accent); text-decoration: none; }
.nav-next { text-align: right; }
.nav-label { font-size: 13px; color: var(--text-faint); }
.nav-title { font-size: 15px; font-weight: 600; color: var(--text); }

/* ---------- 评论区 ---------- */
.comments { margin-top: 48px; }
.comments h2 { font-size: 22px; margin: 0 0 6px; }
.comments .hint { font-size: 13px; color: var(--text-faint); margin: 0 0 20px; }

#comment-form { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
#comment-form input, #comment-form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
#comment-form input:focus, #comment-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
#comment-form textarea { min-height: 100px; resize: vertical; }

.btn {
  align-self: flex-end;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}
.btn:hover { background: var(--accent-strong); }
.btn:active { transform: scale(0.97); }

.comment {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  margin-bottom: 12px;
}
.comment-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; }
.comment-name { font-weight: 700; font-size: 14px; }
.comment-time { font-size: 12px; color: var(--text-faint); }
.comment-body { font-size: 15px; color: var(--text-soft); white-space: pre-wrap; word-break: break-word; }

/* ---------- 账户区（头像 + 昵称 + 悬停菜单） ---------- */
.account-area { display: flex; align-items: center; gap: 10px; }
.user-name {
  font-size: 14px; font-weight: 600; color: var(--text);
  white-space: nowrap; max-width: 140px; overflow: hidden; text-overflow: ellipsis;
}

.avatar-wrap { position: relative; }
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--accent-soft); color: var(--accent);
  font-size: 15px; font-weight: 700; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: border-color 0.2s ease;
}
.avatar:hover { border-color: var(--accent); }

/* 悬停菜单（用 ::after 做间隙桥接，保证 hover 不断；相对头像水平居中） */
.avatar-wrap::after { content: ""; position: absolute; top: 100%; left: 0; height: 10px; width: 100%; }
.account-menu {
  position: absolute; top: calc(100% + 6px); left: 50%; width: 220px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-md); padding: 6px;
  opacity: 0; visibility: hidden; transform: translateX(-50%) translateY(6px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s;
  z-index: 300;
}
.avatar-wrap:hover .account-menu,
.avatar-wrap:focus-within .account-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

.menu-head { padding: 10px 12px; border-bottom: 1px solid var(--border); margin-bottom: 6px; }
.menu-nick { font-size: 15px; font-weight: 700; color: var(--text); }
.menu-account { font-size: 12px; color: var(--text-faint); margin-top: 2px; }
.menu-item {
  display: block; width: 100%; text-align: left;
  background: none; border: none; cursor: pointer;
  padding: 9px 12px; border-radius: var(--radius-sm);
  font-size: 14px; color: var(--text); transition: background 0.15s ease;
}
.menu-item:hover { background: var(--bg-soft); }
.menu-logout { color: #e5484d; }
.menu-login {
  background: var(--accent);
  color: var(--accent-contrast);
  text-align: center;
  font-weight: 600;
  margin-top: 2px;
}
.menu-login:hover { background: var(--accent-strong); color: var(--accent-contrast); }

.admin-badge {
  display: inline-block;
  padding: 1px 7px;
  margin-left: 4px;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.6;
  border-radius: 6px;
  background: #f59e0b;
  color: #fff;
  vertical-align: middle;
  white-space: nowrap;
}

.btn-block { width: 100%; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text-soft); }
.btn-ghost:hover { background: var(--bg-soft); color: var(--text); }

/* ---------- 主题切换悬浮球 ---------- */
.theme-ball {
  position: fixed; right: 16px; top: 50%; transform: translateY(-50%);
  z-index: 90;
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-md);
  font-size: 20px; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.theme-ball:hover { transform: translateY(-50%) scale(1.08); box-shadow: var(--shadow-md); }

/* ---------- 用户页 ---------- */
.user-page { max-width: var(--content-w); margin: 0 auto; padding: 48px 20px 60px; }
.user-card {
  text-align: center;
  padding: 40px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-soft);
}
.user-avatar-lg {
  width: 88px; height: 88px; margin: 0 auto 18px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  border: 1px solid var(--border);
  font-size: 34px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.user-nick { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.user-account { font-size: 14px; color: var(--text-faint); margin-bottom: 8px; }
.user-sub { color: var(--text-soft); font-size: 14px; margin: 0 0 20px; }
.user-meta { font-size: 13px; color: var(--text-faint); margin-bottom: 22px; }
.user-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

/* ---------- 登录/注册弹窗 ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s ease;
}
.modal-overlay.open { opacity: 1; visibility: visible; }

.modal-box {
  position: relative; width: 100%; max-width: 360px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  padding: 26px 24px 20px;
}
.modal-close {
  position: absolute; top: 10px; right: 14px;
  background: none; border: none; font-size: 26px; line-height: 1;
  color: var(--text-faint); cursor: pointer; padding: 0;
}
.modal-close:hover { color: var(--text); }

.modal-tabs { display: flex; gap: 6px; margin-bottom: 18px; background: var(--bg-soft); padding: 4px; border-radius: 10px; }
.tab {
  flex: 1; padding: 8px; border: none; border-radius: 8px;
  background: transparent; color: var(--text-soft); font-size: 15px; cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.tab.active { background: var(--bg-elevated); color: var(--text); font-weight: 600; box-shadow: var(--shadow-sm); }

.modal-title { margin: 0 0 18px; font-size: 18px; font-weight: 700; text-align: center; }

.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-soft); }
.auth-form input {
  width: 100%; padding: 10px 13px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--bg-soft); color: var(--text);
  font-family: inherit; font-size: 15px; outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.auth-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-error { min-height: 18px; margin: 0; font-size: 13px; color: #e5484d; }
.modal-hint { margin: 16px 0 0; font-size: 12px; color: var(--text-faint); text-align: center; }

/* ---------- 评论登录门禁 ---------- */
.comment-login-gate {
  padding: 28px 20px; text-align: center;
  border: 1px dashed var(--border); border-radius: var(--radius);
  background: var(--bg-soft); margin-bottom: 20px;
}
.comment-login-gate p { margin: 0 0 14px; color: var(--text-soft); }
.comment-as { font-size: 14px; color: var(--text-soft); margin-bottom: 4px; }
.comment-as strong { color: var(--accent); }
.comment-delete {
  margin-left: auto; background: none; border: none; cursor: pointer;
  font-size: 12px; color: var(--text-faint); padding: 2px 4px;
}
.comment-delete:hover { color: #e5484d; }

/* 评论回复 */
.comment-actions { margin-top: 8px; }
.reply-btn {
  background: none; border: none; cursor: pointer;
  font-size: 12px; color: var(--text-faint); padding: 2px 4px;
}
.reply-btn:hover { color: var(--accent); }
.comment-replies {
  margin-top: 10px; padding-left: 12px;
  border-left: 2px solid var(--border);
  display: flex; flex-direction: column; gap: 8px;
}
.comment-reply {
  font-size: 14px; line-height: 1.6;
  padding: 8px 12px; border-radius: var(--radius-sm);
  background: var(--bg-soft);
}
.reply-name { font-weight: 700; color: var(--accent); margin-right: 6px; }
.reply-content { color: var(--text); word-break: break-word; }
.reply-time { display: block; font-size: 12px; color: var(--text-faint); margin-top: 2px; }
.reply-box { margin-top: 8px; display: flex; gap: 8px; }
.reply-input {
  flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-soft); color: var(--text); font-family: inherit; font-size: 14px; resize: vertical;
  min-height: 36px; outline: none;
}
.reply-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.reply-submit {
  flex: none; padding: 8px 16px; border: none; border-radius: var(--radius-sm);
  background: var(--accent); color: var(--accent-contrast); font-size: 14px; cursor: pointer;
}
.reply-submit:hover { background: var(--accent-strong); }

/* 用户页：我的评论 */
.my-comments { margin-top: 32px; }
.my-comments h2 { font-size: 20px; margin: 0 0 18px; }
.my-comment {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); padding: 14px 16px; margin-bottom: 14px;
}
.my-comment-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 6px; }
.my-comment-post { font-size: 13px; color: var(--text-faint); }
.my-comment-post:hover { color: var(--accent); }
.my-comment-time { font-size: 12px; color: var(--text-faint); margin-left: auto; }
.my-comment-content { font-size: 15px; color: var(--text); word-break: break-word; }
.my-comment-replies {
  margin-top: 10px; padding-left: 12px; border-left: 2px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.my-reply { font-size: 14px; color: var(--text-soft); }
.my-reply-name { font-weight: 700; color: var(--accent); }

/* 管理员审核面板 */
.pending-badge {
  display: inline-block; padding: 1px 7px; margin-left: 6px;
  font-size: 11px; font-weight: 600; line-height: 1.6; border-radius: 6px;
  background: var(--accent-soft); color: var(--accent); vertical-align: middle;
}
.pending-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg-soft); padding: 14px 16px; margin-bottom: 14px;
}
.pending-meta { font-size: 13px; color: var(--text-faint); margin-bottom: 6px; }
.pending-content { font-size: 15px; color: var(--text); word-break: break-word; margin-bottom: 10px; }
.pending-actions { display: flex; gap: 8px; }
.btn-ok { background: #16a34a; color: #fff; border: none; padding: 8px 18px; }
.btn-ok:hover { background: #15803d; }
.btn-del { background: transparent; color: #e5484d; border: 1px solid var(--border); padding: 8px 18px; }
.btn-del:hover { background: rgba(229, 72, 77, 0.1); }

/* 文章管理 */
.post-form {
  display: flex; flex-direction: column; gap: 12px;
  margin: 16px 0; padding: 16px;
  border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elevated);
}
.post-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-soft); }
.post-form input, .post-form textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-soft); color: var(--text); font-family: inherit; font-size: 14px; outline: none;
}
.post-form input:focus, .post-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.post-form textarea { resize: vertical; }
.form-actions { display: flex; gap: 10px; }
.post-admin-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.post-admin-item {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 12px 14px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-soft);
}
.post-admin-main { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.post-admin-title { font-weight: 600; color: var(--text); }
.post-admin-meta { font-size: 12px; color: var(--text-faint); }
.post-admin-actions { display: flex; gap: 8px; flex: none; }
.post-edit-btn, .post-del-btn {
  background: none; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 5px 12px; font-size: 13px; cursor: pointer; color: var(--text-soft);
}
.post-edit-btn:hover { color: var(--accent); border-color: var(--accent); }
.post-del-btn:hover { color: #e5484d; border-color: #e5484d; }

/* ---------- 关于页 ---------- */
.about-card {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 40px 20px 60px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 32px 0;
  margin-top: 20px;
}
.footer-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
  color: var(--text-faint);
  font-size: 14px;
}
.footer-inner p { margin: 4px 0; }
.footer-links a { color: var(--text-soft); }
.footer-links a:hover { color: var(--accent); }
.icp { font-size: 13px; }
.footer-credit { font-size: 12px; color: var(--text-faint); opacity: 0.7; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .main { grid-template-columns: 1fr; gap: 28px; }
  .sidebar { flex-direction: row; flex-wrap: wrap; }
  .widget { flex: 1 1 220px; }
  .hero h1 { font-size: 40px; }
}

@media (max-width: 640px) {
  .header-inner { gap: 10px; }
  .nav a { padding: 6px 9px; font-size: 14px; }
  .search input { width: 120px; }
  .search input:focus { width: 150px; }
  .brand { font-size: 16px; }
  .hero h1 { font-size: 30px; }
  .hero .slogan { font-size: 17px; }
  .article-title { font-size: 27px; }
  .article-content { font-size: 16px; }
  .article-nav { grid-template-columns: 1fr; }
  .post-card { padding: 20px; }
  .post-card-title { font-size: 19px; }
}

/* 打印优化 */
@media print {
  .site-header, .site-footer, #reading-progress, .comments, .article-nav, .sidebar { display: none !important; }
  body { background: #fff; color: #000; }
}