/* ============================================================
   白给小分队 baigei.club — v2 霓虹电竞风
   纯 CSS 设计系统:零依赖、零外部资源,深色霓虹主题
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --bg-0: #04050e;
  --bg-1: #080b1c;
  --bg-2: #0d1228;
  --panel: rgba(13, 18, 40, .72);
  --panel-solid: #0d1228;
  --line: rgba(120, 150, 255, .14);
  --line-strong: rgba(120, 150, 255, .3);
  --text: #e8ecff;
  --text-2: #aab3d8;
  --text-3: #6b759f;

  --c1: #00e5ff;            /* 主霓虹 */
  --c2: #ff2e88;            /* 副霓虹 */
  --c3: #8a5cff;            /* 过渡色 */
  --glow-1: rgba(0, 229, 255, .45);
  --glow-2: rgba(255, 46, 136, .4);

  --cat-guide: #00e5ff;
  --cat-review: #ff2e88;
  --cat-essay: #ffc94d;

  --radius: 18px;
  --radius-sm: 12px;
  --font-mono: "Cascadia Code", Consolas, "JetBrains Mono", ui-monospace, monospace;
  --header-h: 68px;

  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* 四套霓虹配色,顶栏圆点切换 */
html[data-palette="sunset"] { --c1:#ffb020; --c2:#ff4d6d; --c3:#ff8a3d; --glow-1:rgba(255,176,32,.45); --glow-2:rgba(255,77,109,.4); --cat-guide:#ffb020; --cat-review:#ff4d6d; --cat-essay:#ffe94d; }
html[data-palette="toxic"]  { --c1:#39ff88; --c2:#d4ff3f; --c3:#00d4aa; --glow-1:rgba(57,255,136,.4);  --glow-2:rgba(212,255,63,.35); --cat-guide:#39ff88; --cat-review:#d4ff3f; --cat-essay:#7dffC4; }
html[data-palette="abyss"]  { --c1:#4d8bff; --c2:#b04dff; --c3:#6a5bff; --glow-1:rgba(77,139,255,.45); --glow-2:rgba(176,77,255,.4); --cat-guide:#4d8bff; --cat-review:#b04dff; --cat-essay:#9fd0ff; }

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-0);
  color: var(--text);
  line-height: 1.75;
  letter-spacing: .2px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 网点 + 渐晕底纹 */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -3;
  background:
    radial-gradient(ellipse 80% 55% at 50% -10%, rgba(90, 60, 200, .22), transparent 60%),
    radial-gradient(ellipse 60% 40% at 85% 110%, rgba(0, 190, 255, .1), transparent 60%),
    radial-gradient(ellipse 50% 40% at 10% 100%, rgba(255, 40, 120, .08), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0) 45%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(120,150,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,255,.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
}

::selection { background: var(--c2); color: #fff; }

a { color: var(--c1); text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

.container { width: min(1180px, 92%); margin-inline: auto; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--c1), var(--c3)); border-radius: 6px; border: 2px solid var(--bg-0); }

/* ---------- 自定义光标(仅精确指针) ---------- */
.cursor-dot, .cursor-ring { display: none; }
@media (hover: hover) and (pointer: fine) {
  body.has-cursor { cursor: none; }
  body.has-cursor a, body.has-cursor button, body.has-cursor .chip { cursor: none; }
  .cursor-dot {
    display: block; position: fixed; z-index: 9999; pointer-events: none;
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--c1); box-shadow: 0 0 10px var(--glow-1);
    transform: translate(-50%, -50%);
    transition: width .2s, height .2s, background .2s;
  }
  .cursor-ring {
    display: block; position: fixed; z-index: 9998; pointer-events: none;
    width: 34px; height: 34px; border-radius: 50%;
    border: 1.5px solid var(--c1);
    transform: translate(-50%, -50%);
    transition: width .25s var(--ease-out), height .25s var(--ease-out), border-color .25s, opacity .25s;
    opacity: .7;
  }
  body.cursor-hover .cursor-ring {
    width: 56px; height: 56px; border-color: var(--c2);
    box-shadow: 0 0 24px var(--glow-2) inset, 0 0 18px var(--glow-2);
  }
  body.cursor-hover .cursor-dot { background: var(--c2); }
}

/* ---------- 开机动画(仅首页) ---------- */
#bootScreen {
  position: fixed; inset: 0; z-index: 10000;
  background: var(--bg-0);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px;
  transition: opacity .6s ease, visibility .6s;
}
#bootScreen.done { opacity: 0; visibility: hidden; }
.boot-logo {
  font-size: clamp(34px, 6vw, 56px); font-weight: 900; letter-spacing: 10px;
  background: linear-gradient(90deg, var(--c1), var(--c2), var(--c1));
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: bootShift 1.2s linear infinite;
}
.boot-sub { font-family: var(--font-mono); color: var(--text-3); font-size: 13px; letter-spacing: 3px; }
.boot-bar { width: min(300px, 60vw); height: 3px; background: rgba(120,150,255,.15); border-radius: 3px; overflow: hidden; }
.boot-bar i { display: block; height: 100%; width: 40%; border-radius: 3px; background: linear-gradient(90deg, transparent, var(--c1), var(--c2), transparent); animation: bootLoad 1.1s ease-in-out infinite; }
.boot-pct { font-family: var(--font-mono); font-size: 12px; color: var(--c1); }
@keyframes bootShift { to { background-position: 200% 0; } }
@keyframes bootLoad { 0% { transform: translateX(-120%);} 100% { transform: translateX(320%);} }

/* ---------- 粒子画布 ---------- */
#bgCanvas { position: fixed; inset: 0; z-index: -1; width: 100%; height: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  transition: background .35s, border-color .35s, height .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  height: 58px;
  background: rgba(6, 8, 20, .78);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; height: 100%; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  position: relative; width: 40px; height: 40px; flex: none;
  display: grid; place-items: center;
  font-weight: 900; font-size: 19px; color: #fff;
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
  background: linear-gradient(135deg, var(--c1), var(--c2));
  text-shadow: 0 0 8px rgba(255,255,255,.6);
  transition: transform .3s var(--ease-out), filter .3s;
}
.brand:hover .brand-logo { transform: rotate(-8deg) scale(1.08); filter: drop-shadow(0 0 12px var(--glow-1)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 17px; letter-spacing: 2px; }
.brand-text small { font-family: var(--font-mono); font-size: 10px; color: var(--text-3); letter-spacing: 3px; }

.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  position: relative; padding: 8px 16px; color: var(--text-2); font-size: 15px;
  transition: color .25s, text-shadow .25s;
}
.site-nav a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px;
  background: linear-gradient(90deg, var(--c1), var(--c2));
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease-out);
  box-shadow: 0 0 8px var(--glow-1);
}
.site-nav a:hover, .site-nav a.active { color: #fff; text-shadow: 0 0 12px var(--glow-1); }
.site-nav a:hover::after, .site-nav a.active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }

/* 配色切换圆点 */
.palette-dots { display: flex; gap: 8px; align-items: center; padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; background: rgba(10,14,32,.5); }
.pdot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid transparent; transition: transform .25s, border-color .25s, box-shadow .25s; }
.pdot[data-p="neon"]   { background: linear-gradient(135deg, #00e5ff, #ff2e88); }
.pdot[data-p="sunset"] { background: linear-gradient(135deg, #ffb020, #ff4d6d); }
.pdot[data-p="toxic"]  { background: linear-gradient(135deg, #39ff88, #d4ff3f); }
.pdot[data-p="abyss"]  { background: linear-gradient(135deg, #4d8bff, #b04dff); }
.pdot:hover { transform: scale(1.25); }
.pdot.active { border-color: #fff; box-shadow: 0 0 10px var(--glow-1); transform: scale(1.2); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--header-h) + 40px) 0 80px; overflow: hidden; }
.hero-inner { position: relative; z-index: 2; text-align: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px; border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(10, 14, 32, .6); backdrop-filter: blur(8px);
  font-size: 13.5px; color: var(--text-2);
  box-shadow: 0 0 24px rgba(0,0,0,.3), inset 0 0 18px rgba(0,229,255,.04);
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%; background: #3dff88;
  box-shadow: 0 0 0 0 rgba(61,255,136,.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(61,255,136,.55); }
  70% { box-shadow: 0 0 0 10px rgba(61,255,136,0); }
  100% { box-shadow: 0 0 0 0 rgba(61,255,136,0); }
}

.hero-title {
  margin: 26px 0 8px;
  font-size: clamp(44px, 9vw, 96px);
  font-weight: 900; letter-spacing: clamp(4px, 1vw, 14px);
  line-height: 1.12;
}
/* 故障风文字 */
.glitch { position: relative; display: inline-block; color: #fff; }
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute; inset: 0; overflow: hidden;
}
.glitch::before { color: var(--c1); z-index: -1; animation: glitchA 3.2s infinite steps(1); }
.glitch::after  { color: var(--c2); z-index: -2; animation: glitchB 2.7s infinite steps(1); }
@keyframes glitchA {
  0%, 91%, 100% { transform: none; clip-path: inset(0 0 100% 0); opacity: 0; }
  92% { transform: translate(-4px, 2px); clip-path: inset(12% 0 58% 0); opacity: .85; }
  94% { transform: translate(3px, -2px); clip-path: inset(62% 0 8% 0); opacity: .85; }
  96% { transform: translate(-2px, 1px); clip-path: inset(38% 0 42% 0); opacity: .85; }
  98% { transform: translate(4px, -1px); clip-path: inset(80% 0 4% 0); opacity: .85; }
}
@keyframes glitchB {
  0%, 88%, 100% { transform: none; clip-path: inset(0 0 100% 0); opacity: 0; }
  89% { transform: translate(4px, -2px); clip-path: inset(48% 0 30% 0); opacity: .8; }
  91% { transform: translate(-3px, 2px); clip-path: inset(8% 0 76% 0); opacity: .8; }
  93% { transform: translate(2px, -1px); clip-path: inset(70% 0 12% 0); opacity: .8; }
  95% { transform: translate(-4px, 1px); clip-path: inset(24% 0 60% 0); opacity: .8; }
}

.hero-typed {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 20px);
  color: var(--c1);
  min-height: 1.8em;
  letter-spacing: 2px;
  text-shadow: 0 0 16px var(--glow-1);
}
.typed-cursor { animation: blink 1s steps(1) infinite; color: var(--c2); }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  max-width: 640px; margin: 22px auto 0;
  color: var(--text-2); font-size: clamp(15px, 1.8vw, 17.5px);
}

.hero-actions { display: flex; justify-content: center; gap: 18px; margin-top: 38px; flex-wrap: wrap; }

/* 按钮 */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 34px; border-radius: 999px;
  font-size: 15.5px; font-weight: 600; letter-spacing: 1px;
  transition: transform .3s var(--ease-out), box-shadow .3s, background .3s, color .3s;
  will-change: transform;
}
.btn:active { transform: scale(.96); }

.btn-primary { color: #fff; background: var(--bg-2); isolation: isolate; }
.btn-primary::before {
  content: ""; position: absolute; inset: -2px; z-index: -1; border-radius: inherit;
  background: conic-gradient(from 0deg, var(--c1), var(--c2), var(--c3), var(--c1));
  animation: spin 4s linear infinite;
}
.btn-primary::after {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: linear-gradient(135deg, rgba(0,229,255,.16), rgba(255,46,136,.16)), var(--bg-2);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 36px var(--glow-1), 0 4px 20px var(--glow-2); }
@keyframes spin { to { transform: rotate(360deg); } }

.btn-ghost {
  color: var(--text); border: 1px solid var(--line-strong);
  background: rgba(10, 14, 32, .5); backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--c1); color: var(--c1); box-shadow: 0 0 24px var(--glow-1), inset 0 0 18px rgba(0,229,255,.05); transform: translateY(-3px); }

/* 统计数字 */
.hero-stats {
  display: flex; justify-content: center; gap: clamp(24px, 5vw, 64px);
  margin-top: 54px; flex-wrap: wrap;
}
.stat { text-align: center; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: calc(-1 * clamp(12px, 2.5vw, 32px)); top: 50%;
  transform: translate(-50%, -50%); height: 42px; width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-strong), transparent);
}
.stat-num {
  font-family: var(--font-mono); font-size: clamp(30px, 4.5vw, 44px); font-weight: 700;
  background: linear-gradient(180deg, #fff, var(--c1));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 14px var(--glow-1));
  line-height: 1.15;
}
.stat-label { font-size: 13px; color: var(--text-3); letter-spacing: 3px; margin-top: 4px; }

/* 向下滚动提示 */
.scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-3); font-size: 11px; letter-spacing: 4px; font-family: var(--font-mono);
}
.mouse { width: 24px; height: 38px; border: 1.5px solid var(--line-strong); border-radius: 12px; position: relative; }
.mouse::after {
  content: ""; position: absolute; left: 50%; top: 7px;
  width: 3px; height: 7px; border-radius: 3px; background: var(--c1);
  transform: translateX(-50%);
  box-shadow: 0 0 8px var(--glow-1);
  animation: wheel 1.6s ease-in-out infinite;
}
@keyframes wheel { 0% { opacity: 1; top: 7px; } 70% { opacity: 0; top: 20px; } 100% { opacity: 0; top: 7px; } }

/* ---------- 霓虹跑马灯 ---------- */
.marquee {
  border-block: 1px solid var(--line);
  background: rgba(8, 11, 28, .6);
  overflow: hidden; padding: 14px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; gap: 48px; width: max-content; animation: marquee 28s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  font-family: var(--font-mono); font-size: 14px; letter-spacing: 3px;
  color: var(--text-3); white-space: nowrap;
}
.marquee-track span b { color: var(--c1); font-weight: 600; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; position: relative; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-eyebrow {
  display: inline-block; font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 5px; color: var(--c1); margin-bottom: 12px;
  text-shadow: 0 0 12px var(--glow-1);
}
.section-title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: 2px; }
.section-title em {
  font-style: normal;
  background: linear-gradient(90deg, var(--c1), var(--c2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-sub { color: var(--text-3); margin-top: 10px; font-size: 15px; }

/* 滚动入场(仅 JS 启用时隐藏) */
html.js [data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease-out), transform .8s var(--ease-out); transition-delay: var(--rd, 0s); will-change: opacity, transform; }
html.js [data-reveal="zoom"]  { transform: scale(.9); }
html.js [data-reveal="left"]  { transform: translateX(-44px); }
html.js [data-reveal="right"] { transform: translateX(44px); }
html.js [data-reveal].revealed { opacity: 1; transform: none; }

/* ---------- 特色卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  position: relative; padding: 34px 28px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); backdrop-filter: blur(10px);
  transition: transform .45s var(--ease-out), border-color .45s, box-shadow .45s;
  overflow: hidden;
}
/* 扫光 */
.feature-card::before {
  content: ""; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.06), transparent);
  transform: skewX(-20deg); transition: left .7s var(--ease-out);
}
.feature-card:hover { transform: translateY(-10px); border-color: var(--line-strong); box-shadow: 0 18px 50px rgba(0,0,0,.45), 0 0 30px rgba(0,229,255,.07); }
.feature-card:hover::before { left: 130%; }
.feature-icon {
  width: 62px; height: 62px; border-radius: 16px;
  display: grid; place-items: center; font-size: 30px;
  background: linear-gradient(135deg, rgba(0,229,255,.14), rgba(255,46,136,.14));
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 20px rgba(0,229,255,.08);
  margin-bottom: 20px;
  transition: transform .4s var(--ease-out);
}
.feature-card:hover .feature-icon { transform: rotate(-6deg) scale(1.1); }
.feature-card h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: 1px; }
.feature-card p { color: var(--text-2); font-size: 14.5px; }
.feature-card .corner {
  position: absolute; top: 14px; right: 16px;
  font-family: var(--font-mono); font-size: 11px; color: var(--text-3); letter-spacing: 2px;
}

/* ---------- 文章筛选 ---------- */
.filter-bar { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.chip {
  position: relative; padding: 9px 22px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--text-2);
  font-size: 14px; background: rgba(10,14,32,.5);
  transition: color .3s, border-color .3s, box-shadow .3s, transform .3s;
}
.chip:hover { color: #fff; border-color: var(--line-strong); transform: translateY(-2px); }
.chip.active {
  color: #fff; border-color: transparent;
  background: linear-gradient(135deg, rgba(0,229,255,.2), rgba(255,46,136,.2)), var(--bg-2);
  box-shadow: 0 0 18px var(--glow-1), inset 0 0 14px rgba(0,229,255,.06);
}

/* ---------- 文章卡片 ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-top: 8px; }

.post-card {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  transform-style: preserve-3d;
  transition: transform .5s var(--ease-out), border-color .4s, box-shadow .5s;
  will-change: transform;
}
/* 悬停流光描边 */
.post-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px;
  background: linear-gradient(135deg, var(--c1), transparent 35%, transparent 65%, var(--c2));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .45s; pointer-events: none;
}
.post-card:hover { border-color: transparent; box-shadow: 0 22px 60px rgba(0,0,0,.5), 0 0 34px rgba(0,229,255,.09); }
.post-card:hover::after { opacity: 1; }
.post-card.hide { display: none; }

.card-cover { position: relative; aspect-ratio: 16 / 9.6; overflow: hidden; }
.card-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.02);
  transition: transform .7s var(--ease-out), filter .7s;
  filter: saturate(.92) brightness(.88);
}
.post-card:hover .card-cover img { transform: scale(1.12) rotate(.6deg); filter: saturate(1.15) brightness(1); }
.card-cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(5,6,15,.92));
}

.cat-badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 5px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 600; letter-spacing: 2px;
  backdrop-filter: blur(6px);
  border: 1px solid;
}
.cat-badge.guide  { color: var(--cat-guide);  border-color: var(--cat-guide);  background: rgba(0,229,255,.1);  box-shadow: 0 0 14px rgba(0,229,255,.25); }
.cat-badge.review { color: var(--cat-review); border-color: var(--cat-review); background: rgba(255,46,136,.1); box-shadow: 0 0 14px rgba(255,46,136,.25); }
.cat-badge.essay  { color: var(--cat-essay);  border-color: var(--cat-essay);  background: rgba(255,201,77,.1);  box-shadow: 0 0 14px rgba(255,201,77,.25); }

.card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-meta { display: flex; gap: 8px; align-items: center; font-family: var(--font-mono); font-size: 12px; color: var(--text-3); }
.dot-sep::before { content: "·"; margin-right: 8px; color: var(--c1); }
.card-title { font-size: 17.5px; line-height: 1.45; font-weight: 700; transition: color .3s, text-shadow .3s; }
.post-card:hover .card-title { color: var(--c1); text-shadow: 0 0 18px var(--glow-1); }
.card-excerpt { color: var(--text-2); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: auto; padding-top: 8px; }
.tag {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--text-3);
  padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line);
  transition: color .3s, border-color .3s;
}
.post-card:hover .tag { color: var(--c1); border-color: var(--line-strong); }

.card-arrow {
  position: absolute; right: 18px; bottom: 18px;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong); color: var(--text-3);
  transition: .35s var(--ease-out);
}
.post-card:hover .card-arrow {
  background: linear-gradient(135deg, var(--c1), var(--c2)); color: #fff; border-color: transparent;
  transform: translate(4px, -4px); box-shadow: 0 0 18px var(--glow-1);
}

.empty-tip { text-align: center; color: var(--text-3); padding: 40px 0; display: none; }
.empty-tip.show { display: block; }

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  position: relative; overflow: hidden;
  border: 1px solid var(--line-strong); border-radius: calc(var(--radius) + 8px);
  padding: clamp(40px, 7vw, 72px) 28px; text-align: center;
  background:
    radial-gradient(ellipse 60% 90% at 50% 120%, rgba(0,229,255,.14), transparent 60%),
    radial-gradient(ellipse 50% 80% at 50% -20%, rgba(255,46,136,.12), transparent 60%),
    var(--panel);
}
.cta-banner::before {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 18px, rgba(120,150,255,.035) 18px 19px);
  pointer-events: none;
}
.cta-banner h2 { font-size: clamp(24px, 4.4vw, 40px); font-weight: 900; letter-spacing: 3px; }
.cta-banner p { color: var(--text-2); margin: 16px auto 30px; max-width: 520px; }

/* ---------- 页脚 ---------- */
.site-footer { position: relative; margin-top: 60px; border-top: 1px solid var(--line); background: rgba(5, 6, 15, .8); }
.site-footer::before {
  content: ""; position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: min(560px, 70vw); height: 2px;
  background: linear-gradient(90deg, transparent, var(--c1), var(--c2), transparent);
  box-shadow: 0 0 20px var(--glow-1);
}
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding: 56px 0 40px; }
.footer-col h4 { font-size: 15px; letter-spacing: 2px; margin-bottom: 16px; color: #fff; }
.footer-col h4::after { content: ""; display: block; width: 26px; height: 2px; margin-top: 8px; background: linear-gradient(90deg, var(--c1), var(--c2)); box-shadow: 0 0 8px var(--glow-1); }
.footer-col p { color: var(--text-3); font-size: 13.5px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 9px; }
.footer-col ul a { color: var(--text-3); font-size: 13.5px; transition: color .25s, padding-left .25s; }
.footer-col ul a:hover { color: var(--c1); padding-left: 6px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 20px 0 26px; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: 13px;
}
.footer-bottom a { color: var(--text-3); transition: color .25s; }
.footer-bottom a:hover { color: var(--c1); }

/* ---------- 返回顶部火箭 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line-strong); color: var(--c1);
  background: rgba(10, 14, 32, .8); backdrop-filter: blur(8px);
  font-size: 19px;
  opacity: 0; transform: translateY(24px) scale(.8); pointer-events: none;
  transition: .4s var(--ease-out);
}
.back-top.show { opacity: 1; transform: none; pointer-events: auto; }
.back-top:hover { box-shadow: 0 0 22px var(--glow-1); border-color: var(--c1); }
.back-top::after {
  content: ""; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 5px; height: 12px; border-radius: 50%;
  background: linear-gradient(180deg, var(--c2), transparent);
  opacity: 0;
}
.back-top:hover::after { animation: flame .5s ease-out infinite; }
@keyframes flame { 0% { opacity: .9; height: 12px; } 100% { opacity: 0; height: 22px; } }

/* ============================================================
   文章页
   ============================================================ */
.progress-bar { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 110; background: transparent; }
.progress-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--c1), var(--c2)); box-shadow: 0 0 12px var(--glow-1); }

.page-main { padding: calc(var(--header-h) + 48px) 0 40px; min-height: 70vh; }
.breadcrumbs { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); margin-bottom: 28px; letter-spacing: 1px; }
.breadcrumbs a { color: var(--text-3); transition: color .25s; }
.breadcrumbs a:hover { color: var(--c1); }

.post-wrap { max-width: 820px; margin-inline: auto; position: relative; }
.post-header { text-align: center; margin-bottom: 44px; padding-bottom: 34px; border-bottom: 1px solid var(--line); position: relative; }
.post-header::after {
  content: ""; position: absolute; bottom: -1px; left: 50%; transform: translateX(-50%);
  width: 180px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--c1), var(--c2), transparent);
}
.post-header .cat-badge { position: static; display: inline-block; margin-bottom: 18px; }
.post-title { font-size: clamp(24px, 4vw, 36px); font-weight: 800; line-height: 1.4; letter-spacing: 1px; }
.post-meta { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; color: var(--text-3); font-family: var(--font-mono); }
.post-meta .dot-sep::before { color: var(--c2); }

/* 正文 */
.post-content { font-size: 16px; color: var(--text); }
.post-content > p { margin-bottom: 20px; color: var(--text); }
.post-content strong { color: #fff; text-shadow: 0 0 12px rgba(255,255,255,.14); }
.post-content h2 {
  position: relative; font-size: 23px; margin: 46px 0 20px; padding-left: 16px;
  letter-spacing: 1px; scroll-margin-top: 90px;
}
.post-content h2::before {
  content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 4px;
  background: linear-gradient(180deg, var(--c1), var(--c2));
  box-shadow: 0 0 12px var(--glow-1);
}
.post-content h3 { font-size: 18.5px; margin: 30px 0 14px; color: var(--c1); letter-spacing: .5px; scroll-margin-top: 90px; }
.post-content ul, .post-content ol { margin: 0 0 20px 4px; list-style: none; }
.post-content li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--text-2); }
.post-content li::before {
  content: "▸"; position: absolute; left: 4px; color: var(--c1);
  text-shadow: 0 0 8px var(--glow-1);
}
.post-content ol { counter-reset: oli; }
.post-content ol li { counter-increment: oli; }
.post-content ol li::before {
  content: counter(oli, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 12px; top: 3px;
  color: var(--c2); text-shadow: 0 0 8px var(--glow-2); font-weight: 700;
}
.post-content li strong { color: var(--text); }

.post-content blockquote {
  position: relative; margin: 28px 0; padding: 22px 26px;
  border: 1px solid var(--line); border-left: 3px solid var(--c2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: linear-gradient(90deg, rgba(255,46,136,.06), transparent 60%), var(--panel);
  color: var(--text-2);
}
.post-content blockquote strong { color: var(--c2); }

/* 提示框 */
.callout {
  display: flex; gap: 14px; align-items: flex-start;
  margin: 26px 0; padding: 18px 20px;
  border-radius: var(--radius-sm); border: 1px solid;
  font-size: 14.5px; color: var(--text-2);
}
.callout-icon { font-size: 20px; line-height: 1.5; flex: none; }
.callout.tip  { border-color: rgba(61,255,136,.4);  background: rgba(61,255,136,.06);  box-shadow: 0 0 24px rgba(61,255,136,.07); }
.callout.warn { border-color: rgba(255,120,60,.45); background: rgba(255,120,60,.07);  box-shadow: 0 0 24px rgba(255,120,60,.08); }
.callout.note { border-color: var(--line-strong);   background: rgba(120,150,255,.06); }
.callout strong { color: var(--text); }

/* 图片 */
.post-figure { margin: 30px 0; }
.post-figure img {
  width: 100%; border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  transition: transform .6s var(--ease-out), box-shadow .6s;
}
.post-figure:hover img { transform: scale(1.012); box-shadow: 0 14px 44px rgba(0,0,0,.5), 0 0 30px rgba(0,229,255,.12); }
.post-figure figcaption { text-align: center; font-size: 12.5px; color: var(--text-3); margin-top: 12px; letter-spacing: 1px; }

/* 表格 */
.table-scroll { overflow-x: auto; margin: 26px 0; border-radius: var(--radius-sm); border: 1px solid var(--line-strong); box-shadow: 0 0 30px rgba(0,229,255,.05); }
.post-content table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--panel-solid); min-width: 520px; }
.post-content th {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 2px; color: var(--c1);
  text-align: left; padding: 13px 16px;
  background: rgba(0,229,255,.06); border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}
.post-content td { padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--text-2); }
.post-content tr:last-child td { border-bottom: 0; }
.post-content tbody tr { transition: background .25s; }
.post-content tbody tr:hover { background: rgba(0,229,255,.045); }

/* 代码块 */
.post-content pre {
  position: relative; margin: 26px 0; padding: 20px 22px;
  border-radius: var(--radius-sm); overflow: auto;
  background: #070917; border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 30px rgba(0,229,255,.04);
}
.post-content pre::before {
  content: "❯ console";
  position: absolute; top: 10px; right: 56px;
  font-family: var(--font-mono); font-size: 11px; color: var(--text-3); letter-spacing: 1px;
}
.post-content code { font-family: var(--font-mono); font-size: 13.5px; color: #9ff3ff; }
.post-content pre code { color: #c8e6ff; line-height: 1.85; }
.copy-btn {
  position: absolute; top: 8px; right: 10px;
  padding: 4px 12px; border-radius: 8px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 1px;
  color: var(--text-3); border: 1px solid var(--line); background: rgba(10,14,32,.8);
  transition: .25s;
}
.copy-btn:hover { color: var(--c1); border-color: var(--c1); }
.copy-btn.ok { color: #3dff88; border-color: #3dff88; }
.post-content :not(pre) > code {
  padding: 2px 8px; border-radius: 6px; font-size: .88em;
  background: rgba(0,229,255,.08); border: 1px solid rgba(0,229,255,.18);
}

.kbd {
  display: inline-block; padding: 2px 9px; border-radius: 6px;
  font-family: var(--font-mono); font-size: .82em;
  color: var(--text); background: var(--bg-2);
  border: 1px solid var(--line-strong); border-bottom-width: 3px;
}

/* 评分框 */
.verdict {
  margin: 30px 0; padding: 26px 28px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  background:
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(255,46,136,.06), transparent),
    var(--panel);
}
.verdict-title { font-weight: 800; letter-spacing: 2px; margin-bottom: 18px; color: var(--cat-essay); }
.score-row { display: grid; grid-template-columns: 88px 1fr 52px; gap: 16px; align-items: center; margin-bottom: 12px; }
.score-label { font-size: 13.5px; color: var(--text-2); }
.score-track { height: 8px; border-radius: 6px; background: rgba(120,150,255,.12); overflow: hidden; }
.score-fill {
  height: 100%; width: 0; border-radius: 6px;
  background: linear-gradient(90deg, var(--c1), var(--c2));
  box-shadow: 0 0 12px var(--glow-1);
  transition: width 1.2s var(--ease-out);
}
.score-val { font-family: var(--font-mono); font-weight: 700; color: var(--c1); text-align: right; font-size: 15px; }

/* 文末标签 */
.post-footer-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 34px; padding-top: 22px; border-top: 1px dashed var(--line-strong); }
.post-footer-tags .tag { color: var(--c1); border-color: rgba(0,229,255,.3); }

/* 上一篇 / 下一篇 */
.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 40px; }
.pn-card {
  padding: 20px 22px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--panel); color: var(--text);
  transition: border-color .35s, transform .35s var(--ease-out), box-shadow .35s;
}
.pn-card:hover { border-color: var(--c1); transform: translateY(-4px); box-shadow: 0 12px 36px rgba(0,0,0,.4), 0 0 22px rgba(0,229,255,.08); }
.pn-card.next { text-align: right; }
.pn-label { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-3); letter-spacing: 1px; margin-bottom: 8px; }
.pn-title { font-size: 14.5px; font-weight: 600; line-height: 1.5; color: var(--text-2); }
.pn-card:hover .pn-title { color: var(--c1); }

/* 浮动目录(宽屏自动生成) */
.toc {
  position: fixed; top: 140px; right: 28px; width: 218px; z-index: 80;
  display: none; flex-direction: column; gap: 4px;
  padding: 16px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: rgba(8, 11, 28, .82); backdrop-filter: blur(10px);
  max-height: calc(100vh - 220px); overflow-y: auto;
}
.toc-title { font-family: var(--font-mono); font-size: 11px; letter-spacing: 3px; color: var(--text-3); margin-bottom: 8px; }
.toc a { display: block; padding: 5px 10px; border-left: 2px solid var(--line); font-size: 12.5px; color: var(--text-3); line-height: 1.5; transition: .25s; }
.toc a.lv3 { padding-left: 24px; font-size: 12px; }
.toc a:hover { color: var(--text); border-left-color: var(--line-strong); }
.toc a.active { color: var(--c1); border-left-color: var(--c1); text-shadow: 0 0 10px var(--glow-1); background: linear-gradient(90deg, rgba(0,229,255,.07), transparent); }
@media (min-width: 1460px) { .toc.has-items { display: flex; } }

/* ============================================================
   关于页
   ============================================================ */
.about-hero { text-align: center; margin: 30px 0 20px; }
.about-avatar {
  width: 96px; height: 96px; margin: 0 auto 24px;
  display: grid; place-items: center; font-size: 40px; font-weight: 900; color: #fff;
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
  background: linear-gradient(135deg, var(--c1), var(--c2));
  text-shadow: 0 0 14px rgba(255,255,255,.6);
  box-shadow: 0 0 44px var(--glow-1);
  animation: float 4s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.about-title { font-size: clamp(28px, 5vw, 42px); font-weight: 900; letter-spacing: 3px; }
.about-title em { font-style: normal; background: linear-gradient(90deg, var(--c1), var(--c2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-desc { color: var(--text-2); max-width: 560px; margin: 16px auto 0; }

.about-block { max-width: 820px; margin-inline: auto; }
.about-block .section { padding: 30px 0; }
.about-block .section-head { text-align: left; margin-bottom: 22px; }
.about-block p { color: var(--text-2); margin-bottom: 14px; }
.about-block ul { list-style: none; margin: 14px 0 20px; }
.about-block ul li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--text-2); }
.about-block ul li::before { content: "▸"; position: absolute; left: 4px; color: var(--c1); }

.info-list { list-style: none; display: grid; gap: 10px; }
.info-list li {
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  padding: 15px 20px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--panel); transition: border-color .3s, transform .3s;
}
.info-list li:hover { border-color: var(--line-strong); transform: translateX(6px); }
.info-label { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); letter-spacing: 2px; align-self: center; }

/* ============================================================
   404
   ============================================================ */
.err-main { min-height: 100svh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 100px 20px 60px; position: relative; z-index: 2; }
.err-code {
  font-family: var(--font-mono); font-size: clamp(110px, 26vw, 240px); font-weight: 800; line-height: 1;
  letter-spacing: 8px;
}
.err-code .glitch { color: #fff; }
.err-code .glitch::before, .err-code .glitch::after { animation-duration: 1.8s, 1.5s; }
.err-sub { color: var(--text-2); margin: 18px 0 8px; font-size: 17px; }
.err-tip { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); margin-bottom: 34px; }
.err-tip b { color: var(--c2); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 44px; z-index: 9990;
  transform: translate(-50%, 80px); opacity: 0;
  padding: 13px 26px; border-radius: 999px;
  background: rgba(10, 14, 32, .92); border: 1px solid var(--c1);
  box-shadow: 0 0 30px var(--glow-1);
  font-size: 14px; color: #fff; letter-spacing: 1px;
  backdrop-filter: blur(8px);
  transition: transform .5s var(--ease-out), opacity .5s;
  pointer-events: none; white-space: nowrap;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }

/* ---------- 白给模式(彩蛋) ---------- */
.emoji-rain { position: fixed; inset: 0; z-index: 9980; pointer-events: none; overflow: hidden; }
.emoji-rain span {
  position: absolute; top: -8vh; font-size: 26px;
  animation: fall linear forwards;
}
@keyframes fall { to { transform: translateY(115vh) rotate(540deg); } }
body.baigei-mode { animation: hueShift 6s linear; }
@keyframes hueShift { to { filter: hue-rotate(360deg); } }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .feature-grid, .post-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .section { padding: 68px 0; }
  .feature-grid, .post-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .prev-next { grid-template-columns: 1fr; }
  .pn-card.next { text-align: left; }
  .palette-dots { display: none; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(6, 8, 20, .96); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 10px 6%;
    clip-path: inset(0 0 100% 0);
    transition: clip-path .45s var(--ease-out);
  }
  .site-nav.open { clip-path: inset(0 0 0 0); }
  .site-nav a { padding: 14px 8px; border-bottom: 1px dashed var(--line); font-size: 16px; }
  .site-nav a::after { display: none; }

  .hero-stats { gap: 26px; }
  .stat + .stat::before { display: none; }
  .btn { padding: 12px 26px; }
  .back-top { right: 16px; bottom: 20px; }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  html.js [data-reveal] { opacity: 1; transform: none; }
}