/* ═══════════════════════════════════════════════════════════════
   rsSites 前台模板样式 · 与后台完全一致
   主题系统：class 切换（.light/.dark/.light-emerald/...），
   变量和动效照搬后台 index.css，保证前后台观感统一。
   ═══════════════════════════════════════════════════════════════ */

/* ── 基础重置 ── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "Segoe UI", "Noto Sans CJK SC", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  line-height: 1.7;
  min-height: 100vh;
  color: var(--foreground);
  background: var(--background);
  transition: background 0.3s, color 0.3s;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.3; letter-spacing: -0.02em; }

/* ═══════════════════════════════════════════════════════════════
   主题系统：7 套（照搬后台 index.css）
   ═══════════════════════════════════════════════════════════════ */

/* ── 默认：蓝紫 ── */
.light, :root {
  --accent-from: #3b82f6;
  --accent-via: #8b5cf6;
  --accent-to:   #c084fc;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);

  --background: oklch(0.985 0.002 260);
  --foreground: oklch(0.145 0 0);
  --card: rgba(255,255,255,0.62);
  --card-foreground: oklch(0.145 0 0);
  --popover: rgba(255,255,255,0.82);
  --popover-foreground: oklch(0.145 0 0);
  --primary: oklch(0.5 0.14 265);
  --primary-foreground: oklch(1 0 0);
  --secondary: oklch(0.96 0.005 260);
  --secondary-foreground: oklch(0.25 0 0);
  --muted: oklch(0.96 0.005 260);
  --muted-foreground: oklch(0.5 0 0);
  --accent: oklch(0.94 0.02 265);
  --accent-foreground: oklch(0.25 0 0);
  --destructive: oklch(0.55 0.22 25);
  --border: oklch(0.9 0.01 260);
  --input: oklch(0.94 0.01 260);
  --ring: oklch(0.5 0.14 265);
  --radius: 0.625rem;
  --glass-bg: rgba(255,255,255,0.68);
  --glass-border: rgba(255,255,255,0.78);
  --glass-shadow: 0 4px 24px rgba(0,0,0,0.04);

  /* Blob 配色同步 */
  --blob-1: #c4b5fd;
  --blob-2: #93c5fd;
  --blob-3: #f9a8d4;
  --blob-4: #a78bfa;
  --blob-5: #7dd3fc;
  --blob-6: #f0abfc;
}

/* ── minimal 极简（无毛玻璃/blob 装饰，2026-09-02 补——之前只有6套主题类，
   跟这行注释写的"7套"对不上，也少了后台 ThemeToggle 里真实存在的这一档，
   见 admin-spa/src/index.css 同名主题） ── */
.light-minimal {
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.145 0 0);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.145 0 0);
}

/* ── emerald 海洋青 ── */
.light-emerald {
  --accent-from: #0d9488;
  --accent-via: #14b8a6;
  --accent-to:   #5eead4;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);
  --primary: oklch(0.55 0.15 175);
  --primary-foreground: oklch(1 0 0);
  --ring: oklch(0.55 0.15 175);
  --blob-1: #99f6e4;
  --blob-2: #a5f3fc;
  --blob-3: #cffafe;
  --blob-4: #5eead4;
  --blob-5: #67e8f9;
  --blob-6: #a7f3d0;
}

/* ── amber 日落橙 ── */
.light-amber {
  --accent-from: #c2410c;
  --accent-via: #ea580c;
  --accent-to:   #f97316;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);
  --primary: oklch(0.55 0.14 50);
  --primary-foreground: oklch(1 0 0);
  --ring: oklch(0.55 0.14 50);
  --blob-1: #fef3e2;
  --blob-2: #fef9e7;
  --blob-3: #fffdf5;
  --blob-4: #fef3c7;
  --blob-5: #fde9c8;
  --blob-6: #fde8e8;
}

/* ── rose 玫瑰粉 ── */
.light-rose {
  --accent-from: #be185d;
  --accent-via: #db2777;
  --accent-to:   #ec4899;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);
  --primary: oklch(0.5 0.16 350);
  --primary-foreground: oklch(1 0 0);
  --ring: oklch(0.5 0.16 350);
  --blob-1: #fdf2f8;
  --blob-2: #fce7f3;
  --blob-3: #fdf2f8;
  --blob-4: #f5d0fe;
  --blob-5: #fae8ff;
  --blob-6: #ffe4e6;
}

/* ── violet 靛蓝紫 ── */
.light-violet {
  --accent-from: #4f46e5;
  --accent-via: #6366f1;
  --accent-to:   #818cf8;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);
  --primary: oklch(0.5 0.16 265);
  --primary-foreground: oklch(1 0 0);
  --ring: oklch(0.5 0.16 265);
  --blob-1: #c7d2fe;
  --blob-2: #a5b4fc;
  --blob-3: #ddd6fe;
  --blob-4: #818cf8;
  --blob-5: #93c5fd;
  --blob-6: #c4b5fd;
}

/* ── 暗黑主题 ── */
.dark {
  --accent-from: #3b82f6;
  --accent-via: #8b5cf6;
  --accent-to:   #c084fc;
  --accent-gradient: linear-gradient(135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);

  --background: oklch(0.145 0 0);
  --foreground: oklch(0.985 0 0);
  --card: oklch(0.205 0 0 / 0.85);
  --card-foreground: oklch(0.985 0 0);
  --popover: oklch(0.205 0 0);
  --popover-foreground: oklch(0.985 0 0);
  --primary: oklch(0.65 0.14 260);
  --primary-foreground: oklch(0.145 0 0);
  --secondary: oklch(0.269 0 0);
  --secondary-foreground: oklch(0.985 0 0);
  --muted: oklch(0.269 0 0);
  --muted-foreground: oklch(0.708 0 0);
  --accent: oklch(0.269 0 0);
  --accent-foreground: oklch(0.985 0 0);
  --destructive: oklch(0.704 0.191 22.216);
  --border: oklch(1 0 0 / 10%);
  --input: oklch(1 0 0 / 15%);
  --ring: oklch(0.65 0.14 260);
  --blob-1: #312e81;
  --blob-2: #1e3a8a;
  --blob-3: #4c1d95;
  --blob-4: #0c4a6e;
  --blob-5: #6d28d9;
  --blob-6: #831843;
}

/* ═══════════════════════════════════════════════════════════════
   流动渐变背景 + 散景（照搬后台 index.css）
   ═══════════════════════════════════════════════════════════════ */

.canvas {
  position: fixed; inset: 0; z-index: -2;
  filter: blur(80px) saturate(1.4);
  overflow: hidden;
  background: #f8fafc;
}
.dark .canvas { background: var(--background); }
.blob {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
}
.blob1 {
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, var(--blob-1, #c9a0ff) 0%, transparent 70%);
  top: -15%; left: -10%;
  animation: move1 14s ease-in-out infinite alternate;
}
.blob2 {
  width: 55vw; height: 55vw;
  background: radial-gradient(circle, var(--blob-2, #a0e4ff) 0%, transparent 70%);
  top: -10%; right: -15%;
  animation: move2 16s ease-in-out infinite alternate;
}
.blob3 {
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, var(--blob-3, #ffb3e6) 0%, transparent 70%);
  bottom: -20%; right: 10%;
  animation: move3 12s ease-in-out infinite alternate;
}
.blob4 {
  width: 45vw; height: 45vw;
  background: radial-gradient(circle, var(--blob-4, #a78bfa) 0%, transparent 70%);
  bottom: -10%; left: 20%;
  animation: move4 18s ease-in-out infinite alternate;
}
.blob5 {
  width: 35vw; height: 35vw;
  background: radial-gradient(circle, var(--blob-5, #7dd3fc) 0%, transparent 70%);
  top: 40%; left: 50%;
  animation: move5 10s ease-in-out infinite alternate;
}
.blob6 {
  width: 30vw; height: 30vw;
  background: radial-gradient(circle, var(--blob-6, #f9a8d4) 0%, transparent 70%);
  top: 10%; left: 30%;
  animation: move6 15s ease-in-out infinite alternate;
}
@keyframes move1 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(15vw, 15vh) scale(1.15); }
}
@keyframes move2 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-20vw, 20vh) scale(1.1); }
}
@keyframes move3 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-15vw, -15vh) scale(1.2); }
}
@keyframes move4 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(10vw, -20vh) scale(1.1); }
}
@keyframes move5 {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-10vw, 10vh) scale(1.15); }
}
@keyframes move6 {
  0%   { transform: translate(0, 0) scale(0.9); }
  100% { transform: translate(12vw, 8vh) scale(1.1); }
}

.bokeh {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none;
}
.bokeh span {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.5) 0%, transparent 70%);
  animation: drift linear infinite;
}
@keyframes drift {
  0%   { transform: translateY(0) scale(1); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-110vh) scale(0.6); opacity: 0; }
}

/* 暗色下关掉玻璃动效背景（后台同款） */
.dark .canvas, .dark .bokeh { display: none; }
.light-minimal .canvas, .light-minimal .blob { display: none; }

/* ═══════════════════════════════════════════════════════════════
   布局
   ═══════════════════════════════════════════════════════════════ */

.site-header { position: sticky; top: 0; z-index: 50; }
.nav {
  display: flex; align-items: center; gap: 20px;
  padding: 0 24px; height: 60px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom: 1px solid var(--glass-border);
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--foreground); }
.nav-brand .logo-img { width: 30px; height: 30px; border-radius: 9px; object-fit: cover; }
.nav-links { display: flex; gap: 4px; flex: 1; justify-content: center; overflow-x: auto; scrollbar-width: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-item { position: relative; }
.nav-item > a {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 7px 13px; border-radius: 8px; font-size: 14px;
  color: var(--muted-foreground); white-space: nowrap; transition: all 0.2s;
}
.nav-item > a:hover { color: var(--primary); background: color-mix(in oklch, var(--primary) 8%, transparent); }
.nav-item .caret { font-size: 10px; opacity: 0.5; transition: transform 0.2s; }
.nav-item:hover .caret { transform: rotate(180deg); }
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }

/* 菜单下拉子菜单：悬停展开，纯 CSS，无需 JS */
.nav-item .dropdown {
  position: absolute; top: 100%; left: 0; margin-top: 6px;
  min-width: 160px; padding: 6px;
  border-radius: 12px; border: 1px solid var(--border);
  background: var(--popover);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  backdrop-filter: blur(20px) saturate(1.4); -webkit-backdrop-filter: blur(20px) saturate(1.4);
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: opacity 0.18s, transform 0.18s, visibility 0.18s;
  z-index: 60;
}
.nav-item.has-children:hover .dropdown,
.nav-item.has-children:focus-within .dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-item .dropdown a {
  padding: 8px 12px; border-radius: 8px; font-size: 13.5px;
  color: var(--popover-foreground); white-space: nowrap; transition: background 0.15s;
}
.nav-item .dropdown a:hover { background: var(--accent); color: var(--accent-foreground); }

/* 主题切换（仿后台 ThemeToggle 下拉） */
.theme-wrap { position: relative; }
.theme-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 12px; border-radius: 8px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--foreground);
  font-size: 13px; cursor: pointer;
  transition: all 0.2s;
}
.theme-btn:hover { border-color: var(--primary); }
.theme-btn .t-dot { width: 10px; height: 10px; border-radius: 50%; }
.theme-btn .t-caret { font-size: 10px; opacity: 0.4; }
.theme-panel {
  position: absolute; right: 0; top: calc(100% + 6px);
  width: 200px; padding: 6px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--popover);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  z-index: 60;
}
.theme-option {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 8px 10px; border-radius: 8px;
  border: none; background: transparent;
  font-size: 13px; color: var(--popover-foreground);
  cursor: pointer; text-align: left;
  transition: background 0.15s;
}
.theme-option:hover { background: var(--accent); color: var(--accent-foreground); }
.theme-option.active { background: var(--accent); color: var(--accent-foreground); font-weight: 600; }
.theme-option .t-dot { width: 12px; height: 12px; }
.theme-option .t-check { margin-left: auto; font-size: 11px; }

/* ── 主容器 ── */
.site-main { max-width: 1180px; margin: 0 auto; padding: 40px 24px 60px; }

/* ── 首页 Banner：通栏扁平轮播，用负外边距突破 .site-main 的最大宽度限制，
   不管首页内容外层套了几层容器，都能顶到视口两端。 ── */
.banner-band { width: 100vw; margin-left: 50%; transform: translateX(-50%); }
.banner-band + .banner-band { margin-top: 4px; }
.banner-slider { position: relative; overflow: hidden; }
.banner-track { display: flex; transition: transform 0.5s ease; }
.banner-slide { flex: 0 0 100%; position: relative; display: block; }
.banner-slide img { width: 100%; height: 380px; object-fit: cover; display: block; }
.banner-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 22px 48px; font-size: 19px; font-weight: 600; color: #fff;
  background: linear-gradient(to top, rgba(0,0,0,0.55), transparent);
}
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 50%; border: none;
  background: rgba(0,0,0,0.35); color: #fff; font-size: 22px; line-height: 1;
  cursor: pointer; display: grid; place-items: center; transition: background 0.2s;
}
.banner-arrow:hover { background: rgba(0,0,0,0.55); }
.banner-prev { left: 20px; }
.banner-next { right: 20px; }
.banner-dots { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; gap: 8px; }
.banner-dot {
  width: 8px; height: 8px; border-radius: 50%; border: none; padding: 0;
  background: rgba(255,255,255,0.5); cursor: pointer; transition: all 0.2s;
}
.banner-dot.active { background: #fff; width: 22px; border-radius: 4px; }
@media (max-width: 768px) {
  .banner-slide img { height: 220px; }
  .banner-caption { padding: 16px 24px; font-size: 15px; }
}

/* ── 区块 ── */
.section-block { margin-top: 44px; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.section-head h2 { font-size: 22px; font-weight: 700; color: var(--foreground); }
.section-head a.more { font-size: 13px; color: var(--primary); }
.section-head a.more:hover { text-decoration: underline; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 24px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  transition: transform 0.35s, box-shadow 0.35s, border-color 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.1); border-color: var(--primary); }
.card .card-title { font-size: 16px; font-weight: 600; color: var(--foreground); margin-bottom: 8px; }
.card .card-title a:hover { color: var(--primary); }
.card .card-meta { font-size: 12.5px; color: var(--muted-foreground); }
.card .card-summary { font-size: 14px; color: var(--muted-foreground); margin-top: 6px; }

/* 卡片/栏目入口共用："区域块"，一排三个，名称/更多放在区域内部（2026-08-09
   改版前，卡片是"section-head 标题在外 + 内层 grid 铺内容"两层结构，跟栏目
   入口的单层区域块不是同一套视觉语言，改版后两者统一成这一套）。 */
.region-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.region-block {
  display: block;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 22px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  transition: transform 0.35s, box-shadow 0.35s, border-color 0.3s;
}
.region-block:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.1); border-color: var(--primary); }
.region-block-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.region-block-title { font-size: 16px; font-weight: 700; color: var(--foreground); }
.region-block-more { font-size: 12px; color: var(--muted-foreground); white-space: nowrap; transition: color 0.2s; }
.region-block:hover .region-block-more { color: var(--primary); }
.region-block-desc { font-size: 13px; color: var(--muted-foreground); margin-top: 6px; }
.region-block-empty { font-size: 13px; color: var(--muted-foreground); margin-top: 10px; }
.region-block-items {
  list-style: none; margin-top: 14px; padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 9px;
}
.region-block-items li { margin: 0; }
.region-block-items a {
  display: block; font-size: 13.5px; color: var(--foreground);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.region-block-items a:hover { color: var(--primary); }
@media (max-width: 1024px) { .region-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .region-grid { grid-template-columns: 1fr; } }

/* 友情链接：单独一个卡片区域，按分类分组显示（2026-08-09 改版：原来是每个
   分类各自一个独立 section，现在收进同一个区域块里，footer 不再重复展示）。 */
.friend-card {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 24px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
}
.friend-group + .friend-group { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); }
.friend-group-title { font-size: 13px; font-weight: 600; color: var(--muted-foreground); margin-bottom: 10px; }

/* 友情链接 */
.friend-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.friend-link {
  padding: 6px 14px; border-radius: 999px; font-size: 13px;
  background: var(--secondary); color: var(--secondary-foreground);
  transition: all 0.2s;
}
.friend-link:hover { background: var(--primary); color: var(--primary-foreground); }

/* ── 列表页 ── */
.page-head { margin-bottom: 26px; }
.page-head h1 { font-size: 28px; color: var(--foreground); }
.page-head .breadcrumb { font-size: 13px; color: var(--muted-foreground); margin-bottom: 8px; }
.list-item {
  display: flex; flex-direction: column; gap: 6px;
  padding: 20px 4px; border-bottom: 1px solid var(--border);
}
.list-item:last-child { border-bottom: none; }
.list-item .item-title { font-size: 17px; font-weight: 600; color: var(--foreground); }
.list-item .item-title a:hover { color: var(--primary); }
.list-item .item-title .flag { font-size: 11px; padding: 2px 8px; border-radius: 4px; margin-right: 6px; vertical-align: 2px; }
.flag-pinned { background: var(--destructive); color: #fff; }
.flag-featured { background: var(--accent-gradient); color: #fff; }
.list-item .item-summary { font-size: 14px; color: var(--muted-foreground); }
.list-item .item-meta { font-size: 12.5px; color: var(--muted-foreground); }

/* 博客模式：列表项自带封面（横排缩略图），日期筛选表单 */
.list-item.has-cover { flex-direction: row; align-items: flex-start; gap: 16px; }
.list-item .item-cover { flex: 0 0 160px; }
.list-item .item-cover img { width: 160px; height: 100px; object-fit: cover; border-radius: 10px; display: block; }
.list-item .item-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.blog-filter { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.blog-filter input[type="date"] {
  height: 40px; padding: 0 12px; border-radius: 8px;
  border: 1px solid var(--input); background: var(--glass-bg); color: var(--foreground);
}
.blog-filter a { font-size: 13px; color: var(--muted-foreground); }

/* 分页 */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 30px; }
.pagination a, .pagination span {
  padding: 8px 14px; border-radius: 8px; font-size: 14px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  color: var(--foreground); transition: all 0.2s;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .current { background: var(--accent-gradient); color: #fff; border-color: transparent; }

/* ── 阅读页 ── */
.article {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: 16px; padding: 44px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
}
.article h1 { font-size: 30px; color: var(--foreground); margin-bottom: 14px; }
.article .article-meta { font-size: 13.5px; color: var(--muted-foreground); padding-bottom: 18px; border-bottom: 1px solid var(--border); margin-bottom: 26px; }
.article .article-body { font-size: 16px; line-height: 1.9; color: var(--foreground); }
.article .article-body p { margin: 1em 0; }
.article .article-body img { border-radius: 10px; }
.article .article-body h2, .article .article-body h3 { margin: 1.4em 0 0.6em; }
.article .article-body pre { background: #111827; color: #f3f4f6; padding: 16px; border-radius: 10px; overflow-x: auto; }
.article .article-body blockquote { border-left: 3px solid var(--primary); padding-left: 16px; color: var(--muted-foreground); margin: 1em 0; }

/* 上一篇/下一篇 */
.article-nav { display: flex; gap: 16px; margin-top: 24px; }
.article-nav-item {
  flex: 1; padding: 16px 20px; border-radius: 14px;
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  display: flex; flex-direction: column; gap: 4px;
  transition: border-color 0.2s;
}
.article-nav-item:hover { border-color: var(--primary); }
.article-nav-item.next { text-align: right; align-items: flex-end; }
.article-nav-item.disabled { opacity: 0.4; pointer-events: none; }
.article-nav-label { font-size: 12px; color: var(--muted-foreground); }
.article-nav-title { font-size: 14px; font-weight: 600; color: var(--foreground); }

/* ── 搜索 ── */
.search-form { display: flex; gap: 10px; max-width: 560px; margin: 0 auto 30px; }
.search-input {
  flex: 1; height: 44px; padding: 0 16px; font-size: 15px;
  border: 1px solid var(--input); border-radius: 10px;
  background: var(--glass-bg); color: var(--foreground); outline: none;
}
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--ring); }

/* ── 页脚 ── */
.site-footer {
  border-top: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
}
.footer-inner {
  max-width: 1180px; margin: 0 auto; padding: 34px 24px;
  display: flex; flex-direction: column; gap: 10px;
}
.footer-contact { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 13px; color: var(--muted-foreground); }
.footer-copy { font-size: 13px; color: var(--muted-foreground); }

/* ── 空状态 / 错误页 ── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--muted-foreground); }
.error-page { text-align: center; padding: 100px 20px; }
.error-page .code { font-size: 80px; font-weight: 800; background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.error-page .msg { font-size: 18px; margin: 10px 0 30px; color: var(--muted-foreground); }

/* ── 按钮 ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 24px; border-radius: 10px; font-size: 15px; font-weight: 600;
  transition: all 0.25s; cursor: pointer; border: none;
}
.btn-primary { background: var(--accent-gradient); color: #fff; box-shadow: 0 4px 16px rgba(168,85,247,0.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(168,85,247,0.5); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--foreground); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

/* ── 响应式 ── */
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .nav { padding: 0 14px; }
  .nav-links { justify-content: flex-start; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .article { padding: 24px; }
  .site-main { padding: 24px 16px 40px; }
}
@media (max-width: 480px) { .grid-4 { grid-template-columns: 1fr; } }

/* ── 减少动效 ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  .blob, .bokeh span { animation: none !important; }
}