/* ==========================================================================
   【第六套】游戏 Wiki 模版 —— 仿 halloween-the-game-wiki.wiki
   --------------------------------------------------------------------------
   ★ 换游戏配色只需改 :root 变量区（下方 ★ 标记处）。
   取色方法：找一张该游戏最有代表性的截图，用取色器提取主色/辅色/暗色，
   依次填入 ★ 标注的变量即可，全站自动跟随。
   ========================================================================== */

/* --------------------------------------------------------------------------
   ★★★ 取色区：换游戏时改这里 ★★★
   原站（Halloween: The Game）配色示例已填入，可对照：
   --color-accent           橙 #e8701a   ← 截图主色调（按钮/链接/标题渐变）
   --color-accent-secondary 血红 #cf3040 ← 截图次要强调色（标签/图标/装饰）
   --color-accent-deep      深红 #8b1a1a ← 截图暗部色（渐变深端/光晕）
   --color-bg-primary       近黑 #0a0a12 ← 截图最暗区域
   --color-bg-card          深蓝紫 #1a1a2e
   --color-text-primary     暖白 #e8e4da ← 截图亮部/文字高光
   --color-text-secondary   暖灰 #a89f94
   --font-heading           标题字体（恐怖风游戏可用 Creepster，
                            其他风格游戏换成对应气质字体）
--------------------------------------------------------------------------- */
:root {
  /* ===== 强调色 ===== */
  --color-accent:            #e8701a;   /* ★ 主强调色（截图主色）*/
  --color-accent-secondary:  #cf3040;   /* ★ 次强调色（截图辅色）*/
  --color-accent-deep:       #8b1a1a;   /* ★ 深色渐变端（截图暗部）*/
  --color-accent-glow:       rgba(232, 112, 26, 0.08); /* 光晕 */
  --color-accent-soft:       rgba(232, 112, 26, 0.12); /* 徽章底 */
  --color-accent-border:     rgba(232, 112, 26, 0.25); /* 徽章边 */

  /* ===== 背景 ===== */
  --color-bg-primary:   #0a0a12;   /* ★ 页面底色（截图最暗色）*/
  --color-bg-card:      #1a1a2e;   /* ★ 卡片底色（截图暗部稍亮）*/
  --color-bg-secondary: #12121f;   /* 侧栏/页脚底色 */
  --color-bg-hover:     rgba(255, 255, 255, 0.04);
  --color-bg-glow-1:    rgba(232, 112, 26, 0.05);  /* body 光晕1 */
  --color-bg-glow-2:    rgba(139, 26, 26, 0.05);   /* body 光晕2 */
  --color-bg-glow-3:    rgba(42, 48, 64, 0.35);    /* body 光晕3 */

  /* ===== 文字 ===== */
  --color-text-primary:   #e8e4da;  /* ★ 正文亮色（截图亮部）*/
  --color-text-secondary: #a89f94;  /* 次级文字 */
  --color-text-muted:     #6b645c;  /* 弱化文字 */
  --color-code:           #f0a06a;  /* 行内代码文字色 */

  /* ===== 边框/其他 ===== */
  --color-border: #2b2b40;
  --shadow-glow:  rgba(232, 112, 26, 0.4);
  --shadow-card:  0 10px 30px rgba(0, 0, 0, 0.25);

  /* ===== 字体（换游戏时标题字体往往也要换）===== */
  --font-heading: "Creepster", "Inter", system-ui, sans-serif; /* ★ 标题字体 */
  --font-body:    "Inter", system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", "Fira Code", ui-monospace, monospace;
}

/* ==========================================================================
   基础
   ========================================================================== */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  line-height: 1.7;
  /* 三个径向渐变光晕，营造游戏氛围（原站同款） */
  background-image:
    radial-gradient(at 20% 0%, var(--color-bg-glow-1) 0%, transparent 50%),
    radial-gradient(at 80% 20%, var(--color-bg-glow-2) 0%, transparent 50%),
    radial-gradient(at 50% 80%, var(--color-bg-glow-3) 0%, transparent 50%);
  background-attachment: fixed;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 80rem; margin: 0 auto; padding: 0 1.5rem; }
@media (min-width: 640px)  { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* 文字渐变（标题专用，原站同款三段渐变） */
.gradient-text {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-deep), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ==========================================================================
   顶栏 Header（sticky + 毛玻璃）
   ========================================================================== */
.header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--color-border);
  background: rgba(10, 10, 18, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.header-inner {
  max-width: 80rem; margin: 0 auto; padding: 0 1.5rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 4rem;
}
.brand { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-heading); font-size: 1.125rem; font-weight: 700; white-space: nowrap; }
.brand img { width: 2rem; height: 2rem; border-radius: 0.5rem; object-fit: cover; }
.nav { display: none; align-items: center; gap: 0.25rem; }
@media (min-width: 1024px) { .nav { display: flex; } }
.nav a {
  font-size: 0.875rem; padding: 0.375rem 0.625rem; border-radius: 0.5rem;
  color: var(--color-text-secondary); transition: all 0.2s;
  display: flex; align-items: center; gap: 0.25rem;
}
.nav a:hover { color: var(--color-text-primary); background: var(--color-bg-hover); }
.nav a .caret { width: 0.875rem; height: 0.875rem; transition: transform 0.2s; }
/* ===== 语言切换器（header） ===== */
.lang-switch { position: relative; margin-left: 0.5rem; }
.lang-switch details { position: relative; }
.lang-switch summary {
  list-style: none; cursor: pointer;
  font-size: 0.8125rem; color: var(--color-text-secondary);
  padding: 0.375rem 0.625rem; border-radius: 0.5rem;
  border: 1px solid var(--color-border); transition: all 0.2s;
  display: flex; align-items: center; gap: 0.375rem;
}
.lang-switch summary::-webkit-details-marker { display: none; }
.lang-switch summary:hover { color: var(--color-text-primary); border-color: var(--color-accent-border); }
.lang-switch details[open] summary { border-color: var(--color-accent); color: var(--color-text-primary); }
.lang-switch details div {
  position: absolute; right: 0; top: calc(100% + 0.375rem); z-index: 40;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 0.75rem; padding: 0.375rem; min-width: 11rem;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 0.125rem;
}
.lang-switch details a {
  padding: 0.5rem 0.75rem; border-radius: 0.5rem;
  font-size: 0.8125rem; color: var(--color-text-secondary);
  transition: all 0.15s;
}
.lang-switch details a:hover { background: var(--color-bg-hover); color: var(--color-text-primary); }
.lang-switch [data-current] { color: var(--color-accent); font-weight: 600; }
@media (max-width: 1023px) { .lang-switch { display: none; } }
.nav .has-sub:hover .caret { transform: rotate(180deg); }
.nav .has-sub { position: relative; }
.nav .dropdown {
  display: none; position: absolute; top: 100%; left: 0; min-width: 15rem;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 0.75rem; padding: 0.5rem; box-shadow: var(--shadow-card);
}
.nav .has-sub:hover .dropdown { display: block; }
.dropdown a {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.75rem; border-radius: 0.5rem; font-size: 0.875rem;
}
.dropdown a .count { margin-left: auto; font-size: 0.625rem; color: var(--color-text-muted); }

/* 移动端菜单 */
.menu-btn { display: block; padding: 0.5rem; color: var(--color-text-secondary); background: none; border: none; cursor: pointer; }
@media (min-width: 1024px) { .menu-btn { display: none; } }
.mobile-menu {
  display: none; border-top: 1px solid var(--color-border);
  background: var(--color-bg-primary); padding: 0.75rem 1.5rem 1.25rem;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: flex; align-items: center; gap: 0.625rem;
  padding: 0.625rem 0.75rem; border-radius: 0.5rem;
  font-size: 0.875rem; color: var(--color-text-secondary);
}
.mobile-menu a:hover { color: var(--color-text-primary); background: var(--color-bg-hover); }
.mobile-menu .count { margin-left: auto; font-size: 0.625rem; color: var(--color-text-muted); }

/* ==========================================================================
   布局骨架：主内容（xl 时给左侧栏让位，原站 xl:ml-40）
   ========================================================================== */
.page { display: flex; }
.main { flex: 1; min-width: 0; }
@media (min-width: 1280px) { .main { margin-left: 10rem; } }
/* 左侧固定栏（原站放广告；不需要时注释掉 .side-rail 两个元素即可） */
.side-rail {
  display: none; position: fixed; left: 0; top: 4rem; bottom: 0; width: 10rem;
  z-index: 30; padding-top: 1rem; text-align: center;
}
@media (min-width: 1280px) { .side-rail { display: block; } }

/* ==========================================================================
   Hero 区（全宽背景图 + 半透明压暗 + 光晕 + 居中文案 + 图右）
   ★ 注意：hero-bg 的背景渐变必须带 alpha（半透明），否则会遮住游戏截图
   ========================================================================== */
.hero { position: relative; overflow: hidden; padding: 4rem 0 6rem; }
@media (min-width: 768px) { .hero { padding: 6rem 0 8rem; } }
/* 背景层：游戏截图 + 半透明压暗渐变（不能改成不透明！） */
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(16, 13, 20, 0.35), rgba(16, 13, 20, 0.85)),
    url("assets/media/hero-bg.jpg");
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}
/* 底部渐入页面的遮罩层 */
.hero-fade {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, rgba(10,10,18,0.7), transparent 45%, rgba(10,10,18,0.4));
}
/* 光晕球（呼吸动画） */
.hero-glow {
  position: absolute; z-index: 1; border-radius: 50%; filter: blur(120px);
  pointer-events: none; background: var(--color-accent-glow);
  animation: glow-pulse 6s ease-in-out infinite;
}
.hero-glow.a { top: 25%; left: 20%; width: 500px; height: 500px; transform: translateY(-50%); }
.hero-glow.b { bottom: 30%; right: 12%; width: 300px; height: 300px; background: var(--color-accent-glow); animation-delay: 3s; }
@keyframes glow-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }

.hero-inner { position: relative; z-index: 2; max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }
.hero-head { text-align: center; margin-bottom: 2rem; }
.hero-badge-pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.25rem 0.75rem; margin-bottom: 1.5rem;
  background: var(--color-accent-soft); border: 1px solid var(--color-accent-border);
  border-radius: 999px; font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--color-accent);
}
.hero-badge-pill .dot {
  width: 0.375rem; height: 0.375rem; border-radius: 50%;
  background: var(--color-accent); animation: pulse-dot 1.5s infinite;
}
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.hero h1 {
  font-family: var(--font-heading); font-weight: 800; letter-spacing: 0.01em;
  line-height: 1.1; font-size: 2.5rem;
}
@media (min-width: 768px) { .hero h1 { font-size: 3rem; } }
@media (min-width: 1024px){ .hero h1 { font-size: 3.75rem; } }
.hero-grid { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 5fr 7fr; gap: 2.5rem; } }
.hero-copy { display: flex; flex-direction: column; gap: 1.5rem; }
.hero-copy > p { color: var(--color-text-secondary); font-size: 1rem; line-height: 1.8; }
@media (min-width: 768px) { .hero-copy > p { font-size: 1.125rem; } }
.hero-btns { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.hero-media { position: relative; }
.hero-media img {
  width: 100%; border-radius: 1rem; border: 1px solid var(--color-border);
  box-shadow: 0 25px 60px rgba(0,0,0,0.45);
}
.hero-media::after {
  content: ""; position: absolute; inset: 0; border-radius: 1rem;
  background: linear-gradient(to top, var(--color-bg-primary) 0%, transparent 30%);
  pointer-events: none;
}

/* 徽章组（原站三级） */
.hero-badge-primary {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 0.75rem; border-radius: 8px;
  background: var(--color-accent-soft); border: 1px solid var(--color-accent-border);
  color: var(--color-accent); font-size: 0.75rem; font-weight: 700;
  font-family: var(--font-heading); letter-spacing: 0.03em;
}
.hero-badge-secondary {
  display: inline-flex; align-items: center;
  padding: 0.25rem 0.625rem; border-radius: 6px;
  background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-text-secondary); font-size: 0.6875rem; font-weight: 600;
}
.hero-badge-tertiary {
  display: inline-flex; align-items: center;
  padding: 0.2rem 0.5rem; border-radius: 4px;
  border: 1px solid var(--color-border); color: var(--color-text-muted);
  font-size: 0.625rem; font-weight: 500;
}

/* ==========================================================================
   按钮
   ========================================================================== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: 12px; border: none; cursor: pointer;
  color: #fff; font-weight: 600; font-size: 0.875rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-deep));
  transition: all 0.3s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 20px var(--shadow-glow); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: 12px; cursor: pointer;
  color: var(--color-text-primary); font-weight: 600; font-size: 0.875rem;
  background: transparent; border: 1px solid var(--color-border);
  transition: all 0.3s;
}
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ==========================================================================
   区块通用
   ========================================================================== */
.section { padding: 4rem 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.section-kicker {
  color: var(--color-accent); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 0.25rem;
}
.section-title { font-family: var(--font-heading); font-size: 1.875rem; font-weight: 700; letter-spacing: 0.01em; }
@media (min-width: 768px) { .section-title { font-size: 2.25rem; } }
.section-sub { color: var(--color-text-muted); font-size: 0.9375rem; margin-top: 0.5rem; max-width: 42rem; }
.section-more {
  color: var(--color-accent); font-size: 0.875rem; font-weight: 600;
  display: inline-flex; align-items: center; gap: 0.25rem; white-space: nowrap;
}
.section-more:hover { text-decoration: underline; }

/* ==========================================================================
   文章卡片（Latest Updates / Featured 通用）
   ========================================================================== */
.card-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px)  { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1280px) { .card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 1rem; transition: all 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--color-accent-border); }
.card-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.card:hover .card-media img { transform: scale(1.05); }
.card-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, var(--color-bg-card) 0%, transparent 45%);
}
.card-tag {
  position: absolute; top: 0.75rem; left: 0.75rem; z-index: 1;
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.15rem 0.5rem; border-radius: 0.375rem;
  background: var(--color-accent); color: #fff;
  font-size: 0.625rem; font-weight: 800; letter-spacing: 0.05em;
}
.card-body { display: flex; flex-direction: column; gap: 0.5rem; padding: 1rem 1.25rem 1.25rem; flex: 1; }
.card-title { font-size: 1.0625rem; font-weight: 700; line-height: 1.4; color: var(--color-text-primary); }
.card-title a:hover { color: var(--color-accent); }
.card-excerpt {
  color: var(--color-text-muted); font-size: 0.875rem; line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.card-meta { margin-top: auto; display: flex; align-items: center; gap: 0.625rem; font-size: 0.75rem; color: var(--color-text-muted); }
.card-meta .cat { color: var(--color-accent); font-weight: 600; }
.card-meta .sep { opacity: 0.4; }

/* 图块卡片（角色/地图/能力：大图 + 标题 + 描述） */
.tile-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 640px)  { .tile-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .tile-grid.cols-4 { grid-template-columns: repeat(4, 1fr); } .tile-grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.tile {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 1rem; overflow: hidden; transition: all 0.3s;
}
.tile:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--color-accent-border); }
.tile-media { aspect-ratio: 4 / 3; overflow: hidden; }
.tile-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.tile:hover .tile-media img { transform: scale(1.05); }
.tile-body { padding: 1rem 1.25rem 1.25rem; }
.tile-body h3 { font-family: var(--font-heading); font-size: 1.125rem; margin-bottom: 0.375rem; }
.tile-body p { color: var(--color-text-muted); font-size: 0.8125rem; line-height: 1.6; }
.tile-body .sub { color: var(--color-accent); font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.25rem; }

/* 图标特性卡片（What is / 特点区） */
.feature-grid { display: grid; gap: 1.25rem; grid-template-columns: 1fr; }
@media (min-width: 640px)  { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .feature-grid.cols-4 { grid-template-columns: repeat(4, 1fr); } }
.feature {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 1rem; padding: 1.5rem; transition: all 0.3s;
}
.feature:hover { border-color: var(--color-accent-border); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.feature-icon {
  width: 2.75rem; height: 2.75rem; display: flex; align-items: center; justify-content: center;
  border-radius: 0.75rem; margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--color-accent-soft), rgba(255,255,255,0.04));
  color: var(--color-accent); border: 1px solid var(--color-accent-border);
}
.feature h3 { font-family: var(--font-heading); font-size: 1.0625rem; margin-bottom: 0.375rem; }
.feature p { color: var(--color-text-muted); font-size: 0.8125rem; line-height: 1.65; }

/* 两栏内容区（文字+图） */
.split { display: grid; gap: 2.5rem; align-items: center; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .split { grid-template-columns: 1fr 1fr; } .split.flip .split-media { order: -1; } }
.split-copy h2 { font-family: var(--font-heading); font-size: 1.875rem; margin-bottom: 1rem; }
.split-copy p { color: var(--color-text-secondary); margin-bottom: 0.875rem; line-height: 1.8; }
.split-copy ul li { color: var(--color-text-secondary); padding-left: 1.5rem; position: relative; margin: 0.5rem 0; }
.split-copy ul li::before { content: "▸"; color: var(--color-accent); position: absolute; left: 0.25rem; top: 0; }
.split-media img { border-radius: 1rem; border: 1px solid var(--color-border); box-shadow: var(--shadow-card); }

/* ==========================================================================
   FAQ 手风琴
   ========================================================================== */
.faq-list { max-width: 48rem; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item {
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent); border-radius: 0 12px 12px 0; overflow: hidden;
}
.faq-item.open { border-left-color: var(--color-accent-secondary); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 0.875rem 1.125rem; background: none; border: none; cursor: pointer;
  color: var(--color-text-primary); font-size: 0.9375rem; font-weight: 600; text-align: left;
}
.faq-q .arrow { color: var(--color-accent); font-size: 0.875rem; transition: transform 0.2s; }
.faq-item.open .arrow { transform: rotate(180deg); }
.faq-a { display: none; padding: 0.75rem 1.125rem 1rem; color: var(--color-text-secondary); font-size: 0.875rem; line-height: 1.75; border-top: 1px solid var(--color-border); }
.faq-item.open .faq-a { display: block; }

/* ==========================================================================
   CTA 区
   ========================================================================== */
.cta {
  position: relative; overflow: hidden; text-align: center;
  background: linear-gradient(135deg, var(--color-accent-soft), transparent 60%);
  border: 1px solid var(--color-border); border-radius: 1.5rem;
  padding: 3.5rem 1.5rem; margin-bottom: 1rem;
}
.cta h2 { font-family: var(--font-heading); font-size: 2.25rem; margin-bottom: 0.75rem; }
.cta p { color: var(--color-text-secondary); max-width: 36rem; margin: 0 auto 1.75rem; }
.cta .btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer { border-top: 1px solid var(--color-border); margin-top: 1.5rem; background: var(--color-bg-secondary); }
.footer-inner { max-width: 80rem; margin: 0 auto; padding: 2rem 1.5rem; }
.footer-brand { margin-bottom: 1.5rem; }
.footer-brand h4 { font-family: var(--font-heading); color: var(--color-accent); font-size: 1rem; margin-bottom: 0.5rem; }
.footer-brand p { color: var(--color-text-secondary); font-size: 0.875rem; line-height: 1.7; }
.footer-brand .tagline { color: var(--color-text-muted); font-style: italic; font-size: 0.875rem; margin-top: 0.375rem; }
.footer-cols {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
  padding-bottom: 2rem; border-bottom: 1px solid var(--color-border);
}
@media (min-width: 768px) { .footer-cols { grid-template-columns: repeat(4, 1fr); } }
.footer-col h3 {
  color: var(--color-text-muted); font-family: var(--font-heading);
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.2em; margin-bottom: 0.75rem;
}
.footer-col ul li { margin: 0.5rem 0; }
.footer-col a { color: var(--color-text-secondary); font-size: 0.875rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom { padding-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; color: var(--color-text-muted); font-size: 0.75rem; }
.footer-bottom a { color: var(--color-text-secondary); }
.footer-bottom a:hover { color: var(--color-accent); }

/* ==========================================================================
   文章页（.mdx-content 排版，仿原站）
   ========================================================================== */
.article-layout { display: grid; gap: 2.5rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .article-layout { grid-template-columns: minmax(0, 1fr) 16rem; } }

/* 面包屑 */
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 0.375rem; font-size: 0.75rem; color: var(--color-text-muted); margin-bottom: 1.25rem; }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: 0.4; }

.article-header h1 { font-family: var(--font-heading); font-size: 2rem; line-height: 1.2; margin-bottom: 1rem; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.625rem; font-size: 0.75rem; color: var(--color-text-muted); margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--color-border); }
.article-meta .cat { color: var(--color-accent); font-weight: 600; }
.article-cover { border-radius: 1rem; border: 1px solid var(--color-border); margin-bottom: 1.5rem; overflow: hidden; }

.mdx-content { min-width: 0; }
.mdx-content h1 { font-size: 2rem; margin: 2.5rem 0 1rem; }
.mdx-content h1, .mdx-content h2 {
  font-family: var(--font-heading); font-weight: 700; color: var(--color-text-primary);
  letter-spacing: 0.01em; scroll-margin-top: 100px;
}
.mdx-content h2 { font-size: 1.5rem; margin: 2.25rem 0 0.75rem; padding-bottom: 0.5rem; padding-left: 1.25rem; position: relative; }
.mdx-content h2::before {
  content: ""; position: absolute; top: 0.15rem; bottom: 0.65rem; left: 0; width: 4px; border-radius: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-secondary));
}
.mdx-content h2::after {
  content: ""; display: block; width: 100%; height: 2px; margin-top: 0.5rem; border-radius: 1px; opacity: 0.7;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary), transparent);
}
.mdx-content h3 { font-size: 1.25rem; font-weight: 600; font-family: var(--font-heading); color: var(--color-accent); margin: 1.75rem 0 0.5rem; padding-left: 1rem; position: relative; scroll-margin-top: 100px; }
.mdx-content h3::before { content: "◆"; color: var(--color-accent-secondary); font-size: 0.5rem; position: absolute; top: 0.45rem; left: 0; }
.mdx-content h4 { color: var(--color-accent-secondary); margin: 1.25rem 0 0.5rem; padding-left: 1rem; font-size: 1.1rem; font-weight: 600; position: relative; scroll-margin-top: 100px; }
.mdx-content h4::before { content: "—"; color: var(--color-accent); opacity: 0.5; position: absolute; left: 0; }

.mdx-content p { color: var(--color-text-secondary); margin: 0.75rem 0; font-size: 0.9375rem; line-height: 1.8; }
.mdx-content p:first-of-type { color: var(--color-text-primary); font-size: 1rem; }
.mdx-content strong { color: var(--color-accent); font-weight: 700; }
.mdx-content em { color: var(--color-accent-secondary); font-style: italic; }
.mdx-content del { color: var(--color-text-muted); opacity: 0.7; text-decoration: line-through; }

.mdx-content ul { color: var(--color-text-secondary); margin: 0.75rem 0; }
.mdx-content ul li { margin: 0.4rem 0; padding-left: 1.75rem; line-height: 1.75; position: relative; }
.mdx-content ul li::before { content: "▸"; color: var(--color-accent); font-size: 0.8rem; position: absolute; top: 0.3rem; left: 0.25rem; }
.mdx-content ul li strong { color: var(--color-accent); }
.mdx-content ol { color: var(--color-text-secondary); counter-reset: mdx-counter; margin: 0.75rem 0; }
.mdx-content ol li { counter-increment: mdx-counter; margin: 0.4rem 0; padding-left: 2.5rem; line-height: 1.75; position: relative; }
.mdx-content ol li::before {
  content: counter(mdx-counter); position: absolute; top: 0.2rem; left: 0;
  width: 1.5rem; height: 1.5rem; display: flex; align-items: center; justify-content: center;
  color: var(--color-accent); font-size: 0.7rem; font-weight: 700; font-family: var(--font-heading);
  background: linear-gradient(135deg, var(--color-accent-soft), rgba(255,255,255,0.04));
  border-radius: 6px; box-shadow: 0 0 8px var(--color-accent-glow);
}
.mdx-content ol li strong { color: var(--color-accent); }

.mdx-content blockquote {
  border-left: 4px solid var(--color-accent); color: var(--color-text-secondary);
  background: linear-gradient(135deg, var(--color-accent-glow), transparent);
  border-radius: 0 12px 12px 0; margin: 1.25rem 0; padding: 1rem 1.25rem; font-size: 0.9375rem;
}
.mdx-content blockquote strong { color: var(--color-accent); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.75rem; font-weight: 700; }
.mdx-content blockquote em { color: var(--color-accent-secondary); font-style: normal; font-weight: 600; }

.mdx-content code {
  color: var(--color-code); background: var(--color-accent-soft);
  border: 1px solid var(--color-accent-border); border-radius: 5px;
  padding: 0.125rem 0.5rem; font-family: var(--font-mono); font-size: 0.85em;
  box-shadow: 0 0 6px var(--color-accent-glow);
}
.mdx-content pre {
  background: var(--color-bg-secondary); border: 1px solid var(--color-border);
  border-radius: 12px; margin: 1.25rem 0; padding: 1.25rem; overflow-x: auto; position: relative;
}
.mdx-content pre::before {
  content: ""; display: block; height: 3px; margin: -1.25rem -1.25rem 0.75rem;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-secondary), transparent);
  border-radius: 3px 3px 0 0;
}
.mdx-content pre code { color: var(--color-text-secondary); box-shadow: none; background: none; border: none; padding: 0; font-size: 0.8125rem; line-height: 1.7; }

.mdx-content table { border-collapse: collapse; width: 100%; margin: 1.25rem 0; font-size: 0.875rem; }
.mdx-content th { text-align: left; color: var(--color-accent); letter-spacing: 0.02em; background: linear-gradient(135deg, var(--color-accent-soft), rgba(255,255,255,0.04)); padding: 0.75rem 1rem; font-size: 0.8125rem; font-weight: 700; border: 1px solid var(--color-border); }
.mdx-content td { border: 1px solid var(--color-border); color: var(--color-text-secondary); vertical-align: top; padding: 0.625rem 1rem; font-size: 0.875rem; line-height: 1.5; }
.mdx-content td strong { color: var(--color-accent); }
.mdx-content td:first-child { color: var(--color-text-primary); font-weight: 600; }
.mdx-content tbody tr:hover td { background: var(--color-accent-glow); }
.mdx-content table a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }

.mdx-content img { border: 1px solid var(--color-border); border-radius: 12px; max-width: 100%; margin: 1.25rem 0; }
.mdx-content a { color: var(--color-accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; text-decoration-color: var(--color-accent-border); transition: all 0.2s; }
.mdx-content a:hover { color: var(--color-accent-secondary); text-decoration-thickness: 2px; }
.mdx-content hr { background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-accent-secondary), var(--color-accent), transparent); opacity: 0.5; border: none; border-radius: 2px; height: 3px; margin: 2.5rem 0; }

.mdx-content details { background: var(--color-bg-card); border: 1px solid var(--color-border); border-left: 4px solid var(--color-accent); border-radius: 0 12px 12px 0; margin: 0.75rem 0; overflow: hidden; }
.mdx-content details summary { cursor: pointer; color: var(--color-text-primary); display: flex; justify-content: space-between; align-items: center; padding: 0.875rem 1.125rem; font-size: 0.9375rem; font-weight: 600; list-style: none; }
.mdx-content details summary strong { color: var(--color-accent); }
.mdx-content details summary::after { content: "▾"; color: var(--color-accent); font-size: 0.875rem; transition: transform 0.2s; }
.mdx-content details[open] summary::after { transform: rotate(180deg); }
.mdx-content details[open] summary { border-bottom: 1px solid var(--color-border); }
.mdx-content details[open] { border-left-color: var(--color-accent-secondary); }
.mdx-content details > :not(summary) { padding: 0.75rem 1.125rem; }

/* 文章页侧栏 TOC */
.toc {
  position: sticky; top: 5.5rem; align-self: start;
  background: var(--color-bg-card); border: 1px solid var(--color-border);
  border-radius: 1rem; padding: 1.25rem; max-height: calc(100vh - 7rem); overflow-y: auto;
}
.toc-title { font-family: var(--font-heading); color: var(--color-accent); font-size: 0.8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 0.75rem; }
.toc ul li { margin: 0.375rem 0; }
.toc a { display: block; color: var(--color-text-secondary); font-size: 0.8125rem; padding: 0.25rem 0.5rem; border-left: 2px solid transparent; border-radius: 0 4px 4px 0; transition: all 0.2s; }
.toc a:hover { color: var(--color-text-primary); }
.toc a.active { color: var(--color-accent); border-left-color: var(--color-accent); background: var(--color-accent-glow); }
.toc .lvl-2 { padding-left: 0.5rem; }
.toc .lvl-3 { padding-left: 1.25rem; font-size: 0.75rem; }

/* ==========================================================================
   工具类
   ========================================================================== */
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mt-8 { margin-top: 2rem; }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }