/* ================= 蓝码视界 · 科技蓝主题 ================= */
:root {
  --blue: #0b66ff;
  --blue-deep: #0a49b8;
  --blue-light: #e8f1ff;
  --cyan: #21c8ff;
  --bg: #f0f4f9;
  --bg-soft: #e3ebf5;
  --card: #ffffff;
  --card-head: linear-gradient(135deg, #f2f7ff 0%, #e8f1ff 100%);
  --text: #2b3446;
  --text-2: #5a6478;
  --text-3: #98a2b8;
  --line: #e2e8f2;
  --shadow: 0 2px 12px rgba(11, 102, 255, .07);
  --radius: 10px;
  --header-bg: linear-gradient(120deg, #083a8c 0%, #0b66ff 60%, #1e8bff 100%);
}
html[data-theme="dark"] {
  --blue: #3d8bff;
  --blue-light: #12233f;
  --bg: #0e1420;
  --bg-soft: #131c2c;
  --card: #171f2e;
  --card-head: linear-gradient(135deg, #1a2740 0%, #16233a 100%);
  --text: #dbe4f0;
  --text-2: #9aa8bd;
  --text-3: #64708a;
  --line: #24304a;
  --shadow: 0 2px 12px rgba(0, 0, 0, .35);
  --header-bg: linear-gradient(120deg, #04101f 0%, #0a2a55 60%, #0d3a72 100%);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(1200px 300px at 50% -80px, rgba(11, 102, 255, .10), transparent 70%);
  color: var(--text);
  font-size: 14px;
  line-height: 1.7;
  transition: background .3s, color .3s;
}
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--cyan); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.hidden { display: none !important; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 16px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  background: var(--header-bg);
  color: #fff;
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 14px rgba(8, 58, 140, .35);
}
.header-inner {
  max-width: 1240px; margin: 0 auto; padding: 0 16px;
  display: flex; align-items: center; gap: 20px; height: 60px;
}
.logo { display: flex; align-items: center; gap: 10px; color: #fff; flex-shrink: 0; }
.logo:hover { color: #fff; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 9px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .35);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text strong { font-size: 17px; letter-spacing: 1px; }
.logo-text small { font-size: 11px; opacity: .75; }
.main-nav { display: flex; gap: 2px; flex: 1; }
.nav-item {
  color: rgba(255, 255, 255, .85); padding: 8px 14px; border-radius: 6px;
  font-size: 14px; display: inline-flex; align-items: center; gap: 4px;
}
.nav-item:hover { color: #fff; background: rgba(255, 255, 255, .12); }
.nav-item.active { color: #fff; background: rgba(255, 255, 255, .18); font-weight: 600; }
.header-tools { display: flex; align-items: center; gap: 10px; }
.search-box {
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 20px; overflow: hidden; height: 32px;
}
.search-box input {
  border: 0; outline: 0; background: transparent; color: #fff;
  width: 140px; padding: 0 12px; font-size: 13px;
}
.search-box input::placeholder { color: rgba(255, 255, 255, .6); }
.search-box button { border: 0; background: transparent; color: #fff; padding: 0 10px; height: 100%; }
.theme-toggle {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .1);
  color: #fff; display: flex; align-items: center; justify-content: center;
}
html[data-theme="light"] .icon-sun { display: none; }
html[data-theme="dark"] .icon-moon { display: none; }
.menu-btn { display: none; border: 0; background: transparent; color: #fff; }

/* ---------- 三栏布局 ---------- */
.layout {
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr) 264px;
  gap: 18px; align-items: start;
  padding-top: 18px; padding-bottom: 30px;
}

/* ---------- 小部件通用 ---------- */
.widget {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  margin-bottom: 16px; overflow: hidden;
}
.col-left, .col-right { position: sticky; top: 76px; }
.widget-title {
  font-size: 15px; padding: 12px 16px;
  background: var(--card-head);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 8px;
}
.widget-title i {
  width: 4px; height: 15px; border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
  display: inline-block;
}

/* 作者卡片 */
.author-card { text-align: center; }
.author-cover {
  height: 76px;
  background:
    linear-gradient(120deg, rgba(11,102,255,.85), rgba(33,200,255,.7)),
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(255,255,255,.07) 14px 15px);
}
.author-avatar {
  width: 68px; height: 68px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #fff; font-size: 30px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: -34px auto 8px; border: 3px solid var(--card);
}
.author-body { padding: 0 14px 16px; }
.author-name { font-size: 16px; }
.author-badge {
  font-size: 11px; background: var(--blue-light); color: var(--blue);
  padding: 1px 7px; border-radius: 9px; font-weight: 400; vertical-align: 2px;
}
.author-bio { color: var(--text-2); font-size: 12.5px; margin: 6px 0 10px; }
.author-social { display: flex; justify-content: center; gap: 8px; }
.author-social a {
  font-size: 12px; color: var(--text-2);
  border: 1px solid var(--line); border-radius: 14px; padding: 2px 12px;
}
.author-social a:hover { color: #fff; background: var(--blue); border-color: var(--blue); }

/* 分类 */
.cate-list a, .archive-list a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 9px 16px; color: var(--text-2); font-size: 13.5px;
  border-bottom: 1px dashed var(--line);
}
.cate-list li:last-child a { border-bottom: 0; }
.cate-list a:hover, .archive-list a:hover { color: var(--blue); background: var(--blue-light); padding-left: 20px; }
.cate-list em { font-style: normal; color: var(--text-3); font-size: 12px; }
.cate-dot { width: 8px; height: 8px; border-radius: 2px; display: inline-block; margin-right: 8px; }
.archive-list a { border-bottom: 0; }
.archive-list em { font-style: normal; color: var(--text-3); }

/* 统计 */
.stats-list li {
  display: flex; justify-content: space-between;
  padding: 8px 16px; font-size: 13px; color: var(--text-2);
}
.stats-list li:nth-child(odd) { background: var(--bg-soft); }
.stats-list b { color: var(--blue); font-family: Consolas, monospace; }

/* 公告内容 / 站点信息 */
.notice-content { padding: 12px 16px; font-size: 13px; color: var(--text-2); }
.notice-content li { padding: 3px 0 3px 14px; position: relative; }
.notice-content li::before {
  content: ""; position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
}
.notice-date { display: block; font-size: 11.5px; color: var(--text-3); }

/* 最新评论 */
.latest-comment-list { padding: 6px 0; }
.lc-item { padding: 9px 16px; border-bottom: 1px dashed var(--line); }
.latest-comment-list li:last-child { border-bottom: 0; }
.lc-head { display: flex; align-items: center; font-size: 12.5px; }
.lc-name { font-weight: 600; }
.lc-name .owner { color: var(--blue); font-size: 10.5px; border: 1px solid var(--blue); border-radius: 3px; padding: 0 4px; margin-left: 4px; font-weight: 400; }
.lc-time { margin-left: auto; color: var(--text-3); font-size: 11.5px; }
.lc-text {
  font-size: 12.5px; color: var(--text-2); margin: 3px 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.lc-post { font-size: 11.5px; color: var(--text-3); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lc-post:hover { color: var(--blue); }

/* 热门榜 */
.hot-list { padding: 8px 14px; counter-reset: hot; }
.hot-list li { counter-increment: hot; padding: 6px 0; border-bottom: 1px dashed var(--line); }
.hot-list li:last-child { border-bottom: 0; }
.hot-list a {
  display: block; color: var(--text-2); font-size: 13px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  padding-left: 26px; position: relative;
}
.hot-list a::before {
  content: counter(hot); position: absolute; left: 0; top: 3px;
  width: 18px; height: 18px; border-radius: 4px;
  background: var(--bg-soft); color: var(--text-3);
  font-size: 11px; font-style: italic; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.hot-list li:nth-child(1) a::before { background: #ff4d4f; color: #fff; }
.hot-list li:nth-child(2) a::before { background: #ff9f40; color: #fff; }
.hot-list li:nth-child(3) a::before { background: #ffc42e; color: #fff; }
.hot-list a:hover { color: var(--blue); }

/* 标签云 */
.tag-cloud { padding: 14px 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud a {
  font-size: 12px; padding: 3px 11px; border-radius: 14px;
  background: var(--bg-soft); color: var(--text-2); border: 1px solid var(--line);
}
.tag-cloud a:hover { background: var(--blue); border-color: var(--blue); color: #fff; }

/* 友情链接 */
.link-list { padding: 10px 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px 8px; }
.link-list a {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-2); padding: 5px 4px; border-radius: 6px;
}
.link-list a:hover { color: var(--blue); background: var(--blue-light); }
.link-favicon {
  width: 20px; height: 20px; border-radius: 5px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 11px; font-weight: 700;
}
.link-tip { padding: 0 16px 12px; font-size: 12px; color: var(--text-3); }

/* RSS 卡片 */
.rss-card { padding-bottom: 12px; }
.rss-card > p { padding: 10px 16px 6px; font-size: 12.5px; color: var(--text-2); }
.rss-box { display: flex; margin: 0 16px; }
.rss-box input {
  flex: 1; min-width: 0; border: 1px solid var(--line); border-right: 0;
  border-radius: 6px 0 0 6px; padding: 6px 10px; font-size: 12px;
  background: var(--bg-soft); color: var(--text-2); outline: 0;
}
.rss-box button {
  border: 1px solid var(--blue); background: var(--blue); color: #fff;
  border-radius: 0 6px 6px 0; padding: 6px 12px; font-size: 12px;
}
.rss-links { padding: 8px 16px 0; font-size: 12.5px; text-align: right; }

/* ---------- 中栏 ---------- */
.breadcrumb { font-size: 12.5px; color: var(--text-3); margin-bottom: 10px; }

.post-tabs {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  display: flex; align-items: center; gap: 4px; padding: 8px 10px; margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.tab {
  border: 0; background: transparent; color: var(--text-2);
  padding: 5px 16px; border-radius: 6px; font-size: 14px;
}
.tab.active { background: var(--blue); color: #fff; font-weight: 600; }
.list-count { margin-left: auto; font-size: 12.5px; color: var(--text-3); padding-right: 8px; }

/* 文章列表项：图左文右，中国博客常见样式 */
.post-item {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 14px;
  display: flex; gap: 16px; transition: transform .15s, border-color .15s;
}
.post-item:hover { transform: translateY(-2px); border-color: var(--blue); }
.post-thumb {
  flex-shrink: 0; width: 196px; height: 128px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px; letter-spacing: 2px; font-weight: 600;
  position: relative; overflow: hidden;
}
.post-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(-45deg, transparent 0 18px, rgba(255,255,255,.08) 18px 19px);
}
.post-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.post-title { font-size: 17px; line-height: 1.45; }
.post-title a { color: var(--text); }
.post-title a:hover { color: var(--blue); }
.post-meta {
  font-size: 12px; color: var(--text-3); margin: 5px 0 7px;
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.post-meta .cate-tag {
  color: var(--blue); background: var(--blue-light);
  padding: 1px 8px; border-radius: 3px; font-size: 11.5px;
}
.post-desc {
  flex: 1; color: var(--text-2); font-size: 13.5px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.post-more { align-self: flex-end; font-size: 12.5px; }
.post-more a {
  color: var(--blue); border: 1px solid var(--blue);
  padding: 2px 12px; border-radius: 14px;
}
.post-more a:hover { background: var(--blue); color: #fff; }
.sticky-flag { color: #ff4d4f; border: 1px solid #ff4d4f; font-size: 10.5px; padding: 0 4px; border-radius: 3px; }

/* 分页：中文数字页码风格 */
.pagination { display: flex; justify-content: center; gap: 6px; margin: 20px 0 6px; flex-wrap: wrap; }
.pagination button {
  min-width: 34px; height: 34px; padding: 0 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--text-2);
  border-radius: 6px; font-size: 13px;
}
.pagination button:hover:not(:disabled) { border-color: var(--blue); color: var(--blue); }
.pagination button.cur { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 600; }
.pagination button:disabled { opacity: .45; cursor: not-allowed; }

/* 文章详情 */
.article-card, .page-card, .comments-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px 24px; margin-bottom: 14px;
}
.article-title { font-size: 23px; line-height: 1.5; margin-bottom: 10px; }
.article-meta {
  font-size: 12.5px; color: var(--text-3);
  border-bottom: 1px dashed var(--line); padding-bottom: 12px; margin-bottom: 16px;
  display: flex; flex-wrap: wrap; gap: 14px;
}
.article-content h2 {
  font-size: 18px; margin: 24px 0 10px; padding-left: 10px;
  border-left: 4px solid var(--blue);
}
.article-content h3 { font-size: 16px; margin: 18px 0 8px; }
.article-content p { margin-bottom: 12px; color: var(--text); }
.article-content li { margin: 5px 0 5px 18px; list-style: disc; color: var(--text-2); }
.article-content pre {
  background: #0d1526; color: #d5e3ff; border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; font-size: 13px; line-height: 1.6;
  margin: 12px 0; font-family: Consolas, "Courier New", monospace;
}
.article-content code.inline {
  background: var(--blue-light); color: var(--blue);
  padding: 1px 6px; border-radius: 4px; font-size: 13px;
}
.article-content blockquote {
  border-left: 4px solid var(--cyan); background: var(--blue-light);
  padding: 10px 14px; margin: 12px 0; color: var(--text-2); border-radius: 0 8px 8px 0;
}
/* 正文插图（后台「插入图片」按 Markdown ![](…) 写入） */
.article-content img {
  display: block; max-width: 100%; height: auto; margin: 16px auto;
  border-radius: 8px; border: 1px solid var(--line);
}
.article-tags { margin: 18px 0; display: flex; gap: 8px; flex-wrap: wrap; }
.article-tags a {
  font-size: 12px; color: var(--text-2); background: var(--bg-soft);
  border-radius: 12px; padding: 2px 10px;
}
.article-actions {
  display: flex; align-items: center; gap: 14px;
  border-top: 1px dashed var(--line); padding-top: 14px;
}
.btn-like {
  border: 1px solid var(--blue); color: var(--blue); background: transparent;
  border-radius: 18px; padding: 5px 18px; font-size: 13.5px;
}
.btn-like.liked { background: var(--blue); color: #fff; }
.post-url-tip { font-size: 12px; color: var(--text-3); }
.post-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px;
}
.post-nav a {
  display: block; border: 1px dashed var(--line); border-radius: 8px;
  padding: 10px 14px; font-size: 13px; color: var(--text-2);
}
.post-nav a:hover { border-color: var(--blue); color: var(--blue); }
.post-nav small { display: block; color: var(--text-3); font-size: 12px; }

/* 评论 */
.card-heading {
  font-size: 16px; margin-bottom: 14px; padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.card-heading em { font-style: normal; color: var(--text-3); font-size: 13px; }
.comment-form .form-row { display: flex; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.comment-form input, .comment-form textarea {
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg-soft);
  color: var(--text); padding: 9px 12px; font-size: 13.5px; font-family: inherit; outline: 0;
}
.comment-form input:focus, .comment-form textarea:focus { border-color: var(--blue); background: var(--card); }
.comment-form input { width: 180px; }
.comment-form textarea { width: 100%; resize: vertical; min-height: 92px; }
.comment-form .submit-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.comment-tip { font-size: 12px; color: var(--text-3); }
.btn-primary {
  background: linear-gradient(120deg, var(--blue-deep), var(--blue) 60%, var(--cyan));
  color: #fff; border: 0; border-radius: 20px; padding: 9px 26px; font-size: 14px;
}
.btn-primary:hover { filter: brightness(1.1); }
.comment-list { margin-top: 16px; }
.comment-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.comment-item:last-child { border-bottom: 0; }
.c-avatar {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  color: #fff; font-weight: 600; display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.c-main { flex: 1; min-width: 0; }
.c-head { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.c-name { font-weight: 600; color: var(--text); }
.c-name .owner { color: var(--blue); font-size: 11px; border: 1px solid var(--blue); border-radius: 3px; padding: 0 4px; margin-left: 4px; }
.c-time { color: var(--text-3); font-size: 12px; margin-left: auto; }
.comment-reply-inline { font-size: 12px; color: var(--text-3); }
.c-body { color: var(--text-2); font-size: 13.5px; margin: 5px 0; word-break: break-word; }
.c-ops { font-size: 12px; color: var(--text-3); display: flex; gap: 14px; }
.c-ops button { border: 0; background: transparent; color: var(--text-3); font-size: 12px; }
.c-ops button:hover, .c-ops a:hover { color: var(--blue); }
.comment-reply {
  margin-top: 10px; background: var(--bg-soft); border-radius: 8px; padding: 10px 12px;
}
.comment-reply .c-body { margin: 0; font-size: 12.5px; }
.comment-reply .reply-to { color: var(--blue); margin-right: 6px; }
.empty-tip { text-align: center; color: var(--text-3); padding: 26px 0; font-size: 13px; }
.page-title { font-size: 21px; margin-bottom: 8px; }
.page-desc { color: var(--text-2); margin-bottom: 16px; }

/* 归档筛选 */
.filter-group { display: flex; gap: 10px; margin-top: 12px; }
.filter-label { flex-shrink: 0; color: var(--text-3); font-size: 13px; line-height: 28px; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-chips .chip {
  font-size: 13px; color: var(--text-2); background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: 15px; padding: 3px 14px; line-height: 1.6;
}
.filter-chips .chip:hover { border-color: var(--blue); color: var(--blue); }
.filter-chips .chip.cur { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 600; }
.filter-chips.tags .chip { border-radius: 4px; padding: 2px 10px; font-size: 12.5px; }
.arc-summary {
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--blue);
  border-radius: var(--radius); padding: 10px 16px; margin-bottom: 14px;
  font-size: 13px; color: var(--text-2);
}
.arc-summary a { color: var(--blue); }

/* 验证码行 */
.captcha-row { align-items: center; }
.cap-img { cursor: pointer; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; line-height: 0; height: 46px; background: #e8f1ff; }
.cap-img svg { display: block; }
.cap-img .comment-tip { line-height: 1.6; padding: 6px 10px; display: block; }

/* 友链申请页列表 */
.links-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; margin-top: 8px; }
.links-grid a {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 8px; color: var(--text);
}
.links-grid a:hover { border-color: var(--blue); }
.links-grid b { display: block; font-size: 14px; }
.links-grid small { display: block; color: var(--text-3); font-size: 12px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-top: 1px solid var(--line); padding: 24px 0 30px;
  text-align: center; font-size: 12.5px; color: var(--text-2);
}
html[data-theme="dark"] .site-footer { background: #0b1017; }
.footer-nav { margin-bottom: 10px; }
.footer-nav a { color: var(--text-2); margin: 0 4px; }
.footer-nav a:hover { color: var(--blue); }
.footer-nav span { color: var(--text-3); margin: 0 4px; }
.footer-copy b { color: var(--text); }
.footer-beian { margin-top: 6px; }
.footer-beian a { color: var(--text-2); margin: 0 4px; }
.footer-beian a:hover { color: var(--blue); }
.footer-meta { margin-top: 6px; color: var(--text-3); }
.footer-meta b { color: var(--blue); }

/* ---------- 悬浮元素 ---------- */
.back-top {
  position: fixed; right: 22px; bottom: 90px; width: 40px; height: 40px;
  border-radius: 8px; border: 1px solid var(--line); background: var(--card);
  color: var(--blue); font-size: 18px; box-shadow: var(--shadow); z-index: 90;
}
.back-top:hover { background: var(--blue); color: #fff; }
.modal {
  position: fixed; inset: 0; background: rgba(4, 12, 28, .55); z-index: 200;
  display: flex; align-items: center; justify-content: center;
}
.modal-box {
  width: min(420px, 92vw); background: var(--card); border-radius: 12px;
  padding: 24px; box-shadow: 0 10px 40px rgba(0, 0, 0, .3);
}
.modal-box h3 { margin-bottom: 10px; }
.modal-box p { color: var(--text-2); font-size: 13px; margin-bottom: 8px; }
.modal-box code {
  display: block; background: var(--bg-soft); border-radius: 6px;
  padding: 8px 12px; font-size: 13px; margin-bottom: 8px; word-break: break-all;
}
.modal-tip { font-size: 12px; color: var(--text-3); margin-bottom: 14px; }
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: rgba(10, 30, 66, .92); color: #fff; font-size: 13px;
  padding: 9px 20px; border-radius: 20px; opacity: 0; pointer-events: none;
  transition: .25s; z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .layout { grid-template-columns: 220px minmax(0, 1fr); }
  .col-right { display: none; }
}
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .col-left { display: none; position: static; }
  body.show-mobile-sidebar .col-left { display: block; }
  .main-nav {
    display: none; position: absolute; top: 60px; left: 0; right: 0;
    background: var(--header-bg); flex-direction: column; padding: 8px 16px 14px;
  }
  body.show-mobile-menu .main-nav { display: flex; }
  .menu-btn { display: block; }
  .search-box { display: none; }
  .post-item { flex-direction: column; }
  .post-thumb { width: 100%; height: 150px; }
  .post-nav { grid-template-columns: 1fr; }
  .col-left, .col-right { position: static; }
}