/* ============================================================
   LOCAL LLM GATE — 极客风终端主题
   Dark terminal × neon accent，等宽主字体
   ============================================================ */
:root{
  /* 主色板：午夜黑 + 荧光绿 + 琥珀 + 霓虹青 */
  --bg:#07090d;
  --bg-2:#0b0f16;
  --bg-3:#0e1420;
  --panel:rgba(13,19,32,.72);
  --line:#1c2736;
  --line-bright:#2b3d55;
  --green:#33ff8c;      /* 主荧光绿 */
  --green-dim:#1fbf66;
  --amber:#ffb454;      /* 琥珀警示 */
  --cyan:#35e0ff;       /* 霓虹青   */
  --magenta:#ff6ad5;    /* 副紫      */
  --red:#ff4d6d;
  --txt:#d6e2ee;
  --txt-mut:#7c8ba0;
  --txt-dim:#4a5a70;
  --mono:'JetBrains Mono','Fira Code','Cascadia Code','Consolas','Courier New',monospace;
  --sans:'Space Grotesk','Inter',system-ui,'Segoe UI',Roboto,sans-serif;
  --pad:clamp(20px,5vw,64px);
  --radius:14px;
  --glow-g:0 0 18px rgba(51,255,140,.35);
  --glow-c:0 0 18px rgba(53,224,255,.3);
  --nav-h:58px;
}
html{scroll-behavior:smooth;}
*{box-sizing:border-box;margin:0;padding:0;}
/* 扫描光效果背景 + 网格 */
body{
  font-family:var(--mono);
  color:var(--txt);
  background:
    radial-gradient(1200px 600px at 15% -10%,rgba(51,255,140,.08),transparent 60%),
    radial-gradient(1000px 600px at 110% 10%,rgba(53,224,255,.07),transparent 55%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.012) 0 1px,transparent 1px 3px),
    linear-gradient(180deg,var(--bg),#04060a 140%);
  min-height:100vh;line-height:1.7;
  -webkit-font-smoothing:antialiased;
  background-attachment:fixed;
}
::selection{background:rgba(51,255,140,.28);}
a{color:var(--cyan);text-decoration:none;border-bottom:1px dotted rgba(53,224,255,.4);}
a:hover{color:#fff;border-bottom-color:var(--cyan);}
code,kbd{
  font-family:var(--mono);
  background:#0c1420;border:1px solid var(--line);
  padding:.15em .42em;border-radius:6px;font-size:.92em;color:#aaf3d0;
}
strong{color:#fff;}
em{color:var(--cyan);font-style:normal;}
.hl{color:var(--amber);font-weight:600;text-shadow:0 0 14px rgba(255,180,84,.28);}

/* 顶部细光带 scrollbar */
::-webkit-scrollbar{width:11px;height:11px;}
::-webkit-scrollbar-track{background:#05070b;}
::-webkit-scrollbar-thumb{background:#1d2b3d;border-radius:6px;border:2px solid #05070b;}
::-webkit-scrollbar-thumb:hover{background:var(--green-dim);}

/* 网格丝（固定背景画布） */
canvas#gridfx{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.5;}

/* 顶部导航 ============================================ */
header.gnav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:blur(12px);
  background:linear-gradient(180deg,rgba(6,9,13,.9),rgba(6,9,13,.72));
  border-bottom:1px solid var(--line);
  height:var(--nav-h);display:flex;align-items:center;
}
.gnav-inner{max-width:1280px;margin:0 auto;padding:0 var(--pad);width:100%;display:flex;align-items:center;gap:18px;}
.gnav .logo{font-weight:700;color:var(--green);letter-spacing:0.5px;white-space:nowrap;}
.gnav .logo .prompt{color:var(--txt-dim);}
nav.links{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;margin-left:auto;}
nav.links::-webkit-scrollbar{display:none;}
nav.links a{
  color:var(--txt-mut);border:none;padding:6px 10px;border-radius:8px;
  font-size:.82rem;white-space:nowrap;transition:.18s;
}
nav.links a:hover{color:#fff;background:rgba(51,255,140,.1);}
nav.links a.active{color:var(--green);background:rgba(51,255,140,.12);box-shadow:inset 0 -2px 0 var(--green);}

/* 移动端汉堡按钮（≤900px 显示，替代被隐藏的 nav.links） */
.nav-toggle{
  display:none;margin-left:auto;flex:0 0 auto;
  background:rgba(51,255,140,.08);color:var(--green);
  border:1px solid rgba(51,255,140,.45);border-radius:8px;
  font-family:var(--mono);font-size:.8rem;line-height:1;
  padding:8px 12px;cursor:pointer;white-space:nowrap;transition:.15s;
}
.nav-toggle:hover{background:var(--green);color:#04150c;}

/* 移动端导航抽屉：全屏遮罩 + 居中面板 */
.nav-drawer{
  display:none;position:fixed;inset:0;z-index:130;
  background:rgba(4,7,12,.93);backdrop-filter:blur(6px);
  align-items:flex-start;justify-content:center;
  padding:calc(var(--nav-h) + 16px) 14px 20px;
  overflow-y:auto;
}
.nav-drawer.open{display:flex;}
.nav-drawer .nd-panel{
  width:100%;max-width:420px;
  background:rgba(8,12,19,.97);border:1px solid var(--line);
  border-radius:14px;overflow:hidden;box-shadow:0 22px 60px rgba(0,0,0,.6);
}
.nav-drawer .nd-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:11px 14px;border-bottom:1px solid var(--line);background:#0a0f17;
}
.nav-drawer .nd-title{color:var(--green);font-family:var(--mono);font-size:.8rem;letter-spacing:1.5px;}
.nav-drawer .nd-close{
  background:none;border:1px solid var(--line-bright);color:var(--txt-mut);
  border-radius:8px;font-family:var(--mono);font-size:.78rem;
  padding:5px 10px;cursor:pointer;transition:.15s;
}
.nav-drawer .nd-close:hover{color:#fff;border-color:var(--green);}
.nav-drawer .nd-list{display:flex;flex-direction:column;padding:8px;}
.nav-drawer .nd-list a{
  display:flex;align-items:baseline;gap:10px;
  color:var(--txt-mut);border:1px solid transparent;border-left:3px solid transparent;
  border-radius:9px;padding:11px 12px;font-size:.9rem;transition:.15s;
}
.nav-drawer .nd-list a:hover{color:#fff;background:rgba(51,255,140,.09);border-left-color:var(--green);}
.nav-drawer .nd-list a.on{color:var(--green);background:rgba(51,255,140,.1);border-left-color:var(--green);}
.nav-drawer .nd-num{
  flex:0 0 32px;font-family:var(--mono);font-size:.72rem;color:var(--txt-dim);
}
.nav-drawer .nd-list a.on .nd-num{color:var(--green);}
.nav-drawer .nd-list a.nd-hot .nd-name{color:var(--cyan);}

/* ============ 语言切换（中/英） ============ */
.lang-switch{display:inline-flex;gap:2px;align-items:center;margin-left:10px;flex:0 0 auto;}
.lang-switch a{
  font-family:var(--mono);font-size:.74rem;padding:4px 9px;border-radius:7px;
  border:1px solid var(--line-bright);color:var(--txt-mut);transition:.15s;white-space:nowrap;
}
.lang-switch a:hover{color:#fff;border-color:var(--green);}
.lang-switch a.cur{color:var(--green);border-color:rgba(51,255,140,.55);background:rgba(51,255,140,.08);}

@media(max-width:900px){
  nav.links{display:none;}
  .nav-toggle{display:inline-block;}
  .hnav-hint{display:none;}
  .lang-switch{margin-left:auto;}
  .lang-switch a{font-size:.68rem;padding:5px 8px;}
  .lang-switch + .nav-toggle{margin-left:8px;}
  /* 页脚：小屏改为纵向堆叠，避免链接区溢出 */
  .foot-rows{flex-direction:column;gap:12px;}
  .foot-links{font-size:.74rem;}
  /* Hero：三个按钮小屏折行，允许均分宽度，不溢出 */
  .cta{gap:10px;}
  .cta .btn{font-size:.82rem;padding:11px 16px;}
}

/* 进度条 */
.progress{position:fixed;top:0;left:0;height:2px;z-index:101;
  background:linear-gradient(90deg,var(--green),var(--cyan),var(--magenta));width:0;}
/* 布局骨架 ============================================== */
main{display:block;}
.wrap{max-width:1180px;margin:0 auto;padding:90px var(--pad) 20px;}
section.block{scroll-margin-top:calc(var(--nav-h) + 14px);padding-top:20px;}
.tag{
  font-size:.72rem;letter-spacing:3px;color:var(--green);text-transform:uppercase;
  border:1px solid rgba(51,255,140,.4);padding:4px 12px;border-radius:40px;
  background:rgba(51,255,140,.06);display:inline-block;box-shadow:var(--glow-g) ;
}
h1.title,h2.title{font-family:var(--sans);font-weight:700;line-height:1.15;letter-spacing:-.5px;}
h2.title{font-size:clamp(1.6rem,3.6vw,2.5rem);margin:20px 0 8px;
  background:linear-gradient(90deg,#eafcff,var(--cyan) 45%,var(--green));
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.lead{color:var(--txt-mut);font-size:clamp(.95rem,1.5vw,1.06rem);max-width:820px;}
.sect-head{margin-bottom:34px;}
.sect-head .line{width:64px;height:2px;background:linear-gradient(90deg,var(--green),transparent);margin-top:16px;}

/* Hero ================================================= */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  text-align:left;position:relative;padding-top:var(--nav-h);
}
.hero .inner{max-width:1000px;width:100%;padding:0 var(--pad);}
.hero-boot{
  font-family:var(--mono);font-size:.8rem;color:var(--txt-mut);
  background:#0a0f18;border:1px solid var(--line);border-radius:16px;
  padding:20px 22px;box-shadow:0 30px 80px rgba(0,0,0,.45), inset 0 0 60px rgba(51,255,140,.02);
  position:relative;overflow:hidden;
}
.hero-boot::before{content:"● ● ●";position:absolute;top:0;right:0;height:24px;line-height:24px;
  font-size:8px;letter-spacing:8px;color:var(--txt-dim);padding:0 16px;}
.mono-hero-text{color:#eaffef}
.hero .cmd{color:var(--cyan);}
.hero .ok{color:var(--green);}
.bigname{
  font-family:var(--sans);font-weight:800;
  font-size:clamp(2.2rem,7vw,5.2rem);letter-spacing:-1px;margin:10px 0 6px;
}
.bigname .neon1{color:#fff;text-shadow:0 0 24px rgba(255,255,255,.35);}
.bigname .neon2{color:var(--green);text-shadow:var(--glow-g);}
.bigname .neon3{color:var(--cyan);text-shadow:var(--glow-c);}
.tagline{color:var(--txt-mut);max-width:640px;font-size:clamp(.95rem,1.6vw,1.1rem);}
.tagline .hl{color:var(--amber);}
.type-line{margin-top:16px;min-height:1.6em;}
.type-line .pfx{color:var(--green);font-weight:700;}
#tw{color:var(--txt);}
.cursor{
  display:inline-block;width:10px;height:1.1em;background:var(--green);
  vertical-align:-0.2em;margin-left:2px;animation:blink 1s steps(1) infinite;
}
@keyframes blink{50%{opacity:0;}}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap;margin:30px 0;}
.stat .v{font-family:var(--sans);font-weight:700;font-size:1.25rem;color:var(--green);}
.stat .k{font-size:.72rem;letter-spacing:2px;color:var(--txt-dim);text-transform:uppercase;}
.cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px;}
.btn{
  font-family:var(--mono);font-size:.9rem;cursor:pointer;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  transition:.2s;display:inline-block;border:none;
}
.btn-primary{background:var(--green);color:#04150c;font-weight:700;box-shadow:var(--glow-g);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(51,255,140,.5);}
.btn-ghost{background:transparent;color:var(--txt);border:1px solid var(--line-bright);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}
/* 幽灵按钮 · 绿色文字变体（B站视频入口，不抢主按钮视觉） */
.btn-ghost.btn-bili{color:var(--green);border-color:rgba(51,255,140,.42);}
.btn-ghost.btn-bili:hover{border-color:var(--green);color:var(--green);background:rgba(51,255,140,.08);}
.hero-scroll{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  color:var(--txt-dim);font-size:.7rem;letter-spacing:3px;animation:floaty 2.2s infinite;}
@keyframes floaty{0%,100%{transform:translate(-50%,0);}50%{transform:translate(-50%,8px);}}

/* 网格卡片通用 ========================================= */
.grid{display:grid;gap:18px;}
.cards2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;position:relative;overflow:hidden;transition:.22s;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-bright);
  box-shadow:0 18px 44px rgba(0,0,0,.35);}
.card .h3{font-family:var(--sans);font-weight:700;font-size:1.08rem;color:#fff;margin-bottom:8px;display:flex;gap:10px;align-items:center;}
.card .p{color:var(--txt-mut);font-size:.9rem;}
.card .accent{position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--green),transparent);}

/* 引用 / 数字行 */
.numline{display:flex;align-items:baseline;gap:12px;color:var(--txt-mut);font-size:.9rem;margin:6px 0;}
.numline .n{color:var(--green);font-weight:700;}
/* HW / spec badge ====================================== */
.spec-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.badge{font-size:.72rem;padding:3px 10px;border-radius:30px;border:1px solid var(--line-bright);
  color:var(--txt-mut);background:#0a1019;}
.badge.b-green{color:var(--green);border-color:rgba(51,255,140,.45);background:rgba(51,255,140,.07);}
.badge.b-amber{color:var(--amber);border-color:rgba(255,180,84,.45);background:rgba(255,180,84,.08);}
.badge.b-red{color:var(--red);border-color:rgba(255,77,109,.5);background:rgba(255,77,109,.08);}
.badge.b-cyan{color:var(--cyan);border-color:rgba(53,224,255,.45);background:rgba(53,224,255,.07);}

/* 数据表 */
.tbl-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);box-shadow:0 20px 50px rgba(0,0,0,.3);}
table.tbl{border-collapse:collapse;width:100%;min-width:760px;font-size:.86rem;}
.tbl th{background:linear-gradient(180deg,#0d1522,#0a111c);color:var(--green);
  text-align:left;font-weight:600;letter-spacing:.4px;white-space:nowrap;}
.tbl th,.tbl td{padding:12px 16px;border-bottom:1px solid var(--line);}
.tbl td{color:var(--txt-mut);}
.tbl tr:hover td{background:rgba(51,255,140,.035);color:var(--txt);}
.tbl td b,.tbl td strong{color:#fff;}
.tbl td.g{color:var(--green);}
.tbl td.a{color:var(--amber);}
.tbl td.r{color:var(--red);}
.tbl thead tr th{position:sticky;top:0;}

/* 终端命令块 ============================================ */
.term{border:1px solid var(--line-bright);border-radius:14px;overflow:hidden;margin:18px 0;
  box-shadow:0 24px 60px rgba(0,0,0,.35);}
.term .bar{background:linear-gradient(180deg,#152030,#0d1520);color:var(--txt-mut);
  padding:7px 14px;font-size:.75rem;display:flex;align-items:center;gap:10px;justify-content:space-between;
  border-bottom:1px solid var(--line);}
.term .bar .dots{display:flex;gap:6px;}
.term .bar .dots span{width:11px;height:11px;border-radius:50%;}
.term .bar .dots span:nth-child(1){background:#ff5f57;}
.term .bar .dots span:nth-child(2){background:#febc2e;}
.term .bar .dots span:nth-child(3){background:#28c840;}
.term pre{background:#060a11;color:#cfe9dd;padding:16px 20px;overflow-x:auto;font-size:.84rem;line-height:1.6;margin:0;}
.term pre .c{color:var(--green);}
.term pre .o{color:var(--txt-dim);}
.term pre .cm{color:var(--txt-mut);font-style:italic;}
.term pre .p{color:var(--amber);}
.term .bar .copy{cursor:pointer;color:var(--cyan);border:1px solid rgba(53,224,255,.4);
  padding:2px 9px;border-radius:6px;font-size:.72rem;font-family:var(--mono);}
.term .bar .copy:hover{background:rgba(53,224,255,.12);}

/* 避坑 accordion ======================================== */
.acc{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--panel);overflow:hidden;}
.acc summary{cursor:pointer;list-style:none;padding:15px 18px;display:flex;align-items:center;gap:12px;
  color:#eaf2fb;font-weight:600;user-select:none;}
.acc summary::-webkit-details-marker{display:none;}
.acc summary::-moz-list-bullet{list-style:none;}
.acc summary .ico{color:var(--red);flex:0 0 auto;}
.acc summary .exp{color:var(--green);font-weight:700;margin-left:auto;transition:transform .2s;}
.acc[open] summary{background:rgba(51,255,140,.05);}
.acc[open] summary .exp{transform:rotate(45deg);}
.acc .body{margin:0 18px 16px;padding:14px 0 4px;color:var(--txt-mut);
  font-size:.9rem;border-top:1px dashed var(--line);}
.acc .body p{margin-bottom:8px;}
/* 许可 / license tag */
.lic{font-size:.7rem;padding:2px 8px;border-radius:4px;border:1px solid;font-weight:700;}
.lic.mit{color:var(--green);border-color:rgba(51,255,140,.5);}
.lic.other{color:var(--amber);border-color:rgba(255,180,84,.5);}
.lic.comm{color:var(--red);border-color:rgba(255,77,109,.5);}

/* callout 引用 */
.callout{border-left:3px solid var(--cyan);background:rgba(53,224,255,.05);
  padding:14px 18px;border-radius:8px;margin:16px 0;color:var(--txt-mut);}
.callout.warn{border-color:var(--amber);background:rgba(255,180,84,.06);}
.callout.g{border-color:var(--green);background:rgba(51,255,140,.05);}
.callout .head{font-weight:700;color:var(--cyan);display:block;margin-bottom:4px;}
.callout.warn .head{color:var(--amber);}
.callout.g .head{color:var(--green);}

/* 模型墙 ================================================ */
.filterrow{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 24px;align-items:center;}
.fbtn{border:1px solid var(--line-bright);background:#0a1019;color:var(--txt-mut);padding:7px 15px;
  border-radius:30px;font-family:var(--mono);font-size:.8rem;cursor:pointer;transition:.15s;}
.fbtn:hover{color:#fff;border-color:#fff;transform:translateY(-1px);}
.fbtn.on{color:#04150c;background:var(--green);border-color:var(--green);font-weight:700;box-shadow:var(--glow-g);}
.mcard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;background:var(--panel);
  padding:20px;position:relative;overflow:hidden;transition:.2s;}
.mcard:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:0 22px 60px rgba(0,0,0,.4);}
.mcard .top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:8px;}
.mcard .nm{font-family:var(--sans);font-weight:700;color:#fff;font-size:1.14rem;}
.mcard .org{color:var(--txt-dim);font-size:.68rem;letter-spacing:1px;text-transform:uppercase;}
.mcard .vr{font-family:var(--mono);color:var(--cyan);font-size:.92rem;font-weight:700;white-space:nowrap;}
.mcard .rt{font-size:.82rem;color:var(--txt-mut);min-height:76px;flex:1;}
.mcard .spec{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 12px;}
.mcard .vc{border-top:1px dashed var(--line);padding-top:10px;color:var(--txt-dim);
  font-size:.74rem;line-height:1.7;}
.mcard .vc b{color:var(--txt);font-weight:600;}
.mcards{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));}
.mcard.hide{display:none;}

/* 页脚 ================================================= */
footer{margin-top:70px;border-top:1px solid var(--line);}
footer .ascii{color:var(--txt-dim);font-size:.6rem;line-height:1.4;overflow-x:auto;}
footer .fwrap{padding:44px var(--pad) 24px;background:linear-gradient(180deg,transparent,rgba(5,8,12,.9));max-width:1180px;margin:0 auto;}
.foot-rows{color:var(--txt-dim);font-size:.8rem;border-top:1px dashed var(--line);padding-top:18px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.backtotop{color:var(--cyan);cursor:pointer;}
/* 频道链接区（B站 / GitHub）—— 纯文字链接，与终端风页脚同调 */
.foot-links{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:0 6px;
  font-family:var(--mono);font-size:.78rem;line-height:1.8;
}
.foot-links .fl-sep{color:var(--txt-dim);opacity:.6;user-select:none;}
.foot-links a{color:var(--green);border:none;transition:.15s;}
.foot-links a:hover{color:#fff;text-decoration:underline;}

/* 载入 veil */
#veil{position:fixed;inset:0;z-index:999;background:#05070c;align-items:center;justify-content:center;
  font-family:var(--mono);flex-direction:column;gap:14px;transition:opacity .45s;display:none;}
#veil.on{display:flex;}
#veil.done{opacity:0;pointer-events:none;}
#veil .ld{color:var(--green);}
#veil .bootlog{color:var(--txt-mut);font-size:.78rem;max-width:520px;white-space:pre-wrap;}

/* Reveal 进入动画 */
.reveal-seed>*{opacity:0;transform:translateY(22px);}
.reveal-seed .is-in{opacity:1;transform:none;transition:opacity .7s ease,transform .7s ease;}

/* 深入区样式：难度徽标 & pro 导航着色 */
nav.links a.nav-pro{color:var(--txt-dim);opacity:.85;}
nav.links a.nav-pro::before{content:"▲";color:var(--magenta);font-size:.6rem;margin-right:2px;vertical-align:1px;}
nav.links a.nav-pro:hover{opacity:1;color:#fff;}
nav.links a.nav-pro.active{color:var(--magenta);background:rgba(255,106,213,.12);box-shadow:inset 0 -2px 0 var(--magenta);}
h3.lvl-sub{font-family:var(--sans);color:#fff;font-size:1.25rem;margin:30px 0 12px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.lvl{border:1px solid;padding:2px 10px;border-radius:40px;font-size:.64rem;letter-spacing:1.5px;font-weight:700;white-space:nowrap;}
.lvl.core{color:var(--green);border-color:rgba(51,255,140,.5);background:rgba(51,255,140,.06);}
.lvl.pro{color:var(--cyan);border-color:rgba(53,224,255,.5);background:rgba(53,224,255,.06);}
.lvl.guru{color:var(--magenta);border-color:rgba(255,106,213,.55);background:rgba(255,106,213,.07);}
.insights{border:1px solid var(--line);border-left:3px solid var(--cream-cyan,var(--cyan));border-radius:10px;padding:16px 18px;margin:20px 0;background:rgba(53,224,255,.04);}
.insights .h{color:var(--cyan);font-weight:700;display:block;margin-bottom:6px;letter-spacing:.5px;}
.insights ul{list-style:none;margin:0;padding:0;}
.insights li{color:var(--txt-mut);padding:.2em 0 .2em 1.3em;position:relative;font-size:.9rem;line-height:1.75;}
.insights li::before{content:"▸";position:absolute;left:0;color:var(--green);}
.check-row{display:flex;gap:14px;align-items:baseline;color:var(--txt-mut);font-size:.9rem;padding:.3em 0;flex-wrap:wrap;}
.check-row .cok{color:var(--green);flex:0 0 auto;}
.check-row .cno{color:var(--red);flex:0 0 auto;}
.hero-boot b, .numline b{color:#fff;}

@media(max-width:680px){
  .hero-boot{font-size:.68rem;padding:16px;}
  .bigname{letter-spacing:-.5px;}
  .tbl th,.tbl td{padding:10px 12px;}
  .term pre{font-size:.75rem;}
  footer .ascii{font-size:.48rem;}
  h2.title{letter-spacing:-1px;}
}

/* ============ 顶导瘦身 · 精简链接 ============ */
.gnav-inner{position:relative;}
.play-head a,.gnav-inner a{white-space:nowrap;}
nav.links a[data-ref]{white-space:nowrap;font-size:.8rem;}
nav.links a[data-ref],a.top-group{color:var(--txt-mut);border:none;padding:6px 8px;border-radius:8px;text-decoration:none;}
a.top-group{white-space:nowrap;font-size:.82rem;} /* ensure grouping stays one line */
nav.links .topnav-sep{color:var(--txt-dim);opacity:.5;font-size:.72rem;}
a.top-group{
  display:inline-flex;align-items:center;gap:7px;border:none;
  color:var(--txt-mut);padding:6px 10px;font-size:.82rem;border-radius:8px;
}
a.top-group .g-dot{width:7px;height:7px;border-radius:50%;flex:0 0 auto;}
a.top-group .g-main{background:var(--green);box-shadow:var(--glow-g);}
a.top-group .g-pro{background:var(--magenta);box-shadow:0 0 10px rgba(255,106,213,.5);}
a.top-group:hover{color:#fff;background:rgba(51,255,140,.08);}
a.top-group.cur{color:var(--green);background:rgba(51,255,140,.1);box-shadow:inset 0 -2px 0 var(--green);}
/* NOTE 提示，仅在宽敞头部显示 */
.hnav-hint{
  margin-left:6px;color:var(--txt-dim);font-size:.68rem;letter-spacing:.5px;
  border:1px dashed var(--line-bright);border-radius:20px;padding:3px 10px;white-space:nowrap;
}
/* ============ 右侧章节小地图 TOC ============ */
.sn-toggle{
  position:fixed;right:10px;bottom:18px;z-index:120;
  background:rgba(6,10,16,.85);backdrop-filter:blur(8px);
  border:1px solid var(--green);color:var(--green);padding:9px 14px;border-radius:30px;
  font-family:var(--mono);font-size:.8rem;cursor:pointer;
  box-shadow:0 6px 22px rgba(0,0,0,.4);transition:.2s;
}
.sn-toggle:hover{background:var(--green);color:#04150c;}
.sidenav{
  position:fixed;right:8px;
  top:calc(var(--nav-h) + 12px);bottom:14px;z-index:110;
  width:236px;display:flex;flex-direction:column;
  background:rgba(8,12,19,.82);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:0 18px 50px rgba(0,0,0,.35);transition:transform .3s ease,opacity .3s ease;
}
.sidenav .sn-head{padding:10px 12px 8px;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:baseline;background:#0a0f17;}
.sidenav .sn-title{color:var(--green);font-weight:700;letter-spacing:1.5px;font-size:.85rem;}
.sidenav .sn-capbig{color:var(--txt-dim);font-size:.62rem;letter-spacing:.5px;}
.sidenav .sn-scroll{flex:1;overflow-y:auto;padding:8px 9px 8px;display:flex;flex-direction:column;gap:2px;}
.sidenav .sn-cap{color:var(--txt-dim);font-size:.66rem;letter-spacing:2px;margin:6px 4px 3px;text-transform:uppercase;}
.sidenav .sn-cap-pro{color:var(--magenta);border-top:1px dashed var(--line);padding-top:8px;margin-top:8px;}
.sidenav a.tocL{
  border:none;display:flex;align-items:baseline;gap:8px;color:var(--txt-mut);
  font-size:.8rem;padding:5px 8px;border-radius:8px;border-left:2px solid transparent;
  transition:.15s;white-space:nowrap;
}
.sidenav a.tocL .tocNum{color:var(--txt-dim);font-size:.68rem;flex:0 0 26px;}
.sidenav a.tocL .tocNum-pro{color:var(--magenta);}
.sidenav a.tocL .tocName{overflow:hidden;text-overflow:ellipsis;}
.sidenav a.tocL:hover{color:#fff;background:rgba(53,224,255,.07);}
.sidenav a.tocL.on{color:var(--green);background:rgba(51,255,140,.1);
  border-left-color:var(--green);box-shadow:inset 0 0 0 1px rgba(51,255,140,.14);}
.sidenav .sn-foot{border-top:1px solid var(--line);padding:7px 10px;
  display:flex;justify-content:space-between;background:#0a0f17;}
.sidenav .sn-up{color:var(--cyan);font-size:.7rem;border:none;letter-spacing:1px;}
/* 低于 1710px：TOC 收成抽屉，由右下角浮动按钮唤出 */
@media(max-width:1709px){
  .sidenav:not(.open){transform:translateX(110%);opacity:0;pointer-events:none;}
  .sidenav.open{transform:translateX(0);opacity:1;pointer-events:auto;
    top:calc(var(--nav-h) + 10px);bottom:10px;
    right:clamp(8px,3vw,30px);width:262px;max-width:calc(100vw - 20px);}
  .hnav-hint{display:none;}
}
/* ≥1710px 且(默认认为够放时) 右侧 TOC 常驻，隐藏浮动按钮 */
@media(min-width:1710px){.sn-toggle{display:none;}}

/* ============ 顶导逐节 + guru 深水按钮 ============ */
#topNav a[data-go]{
  border:none;color:var(--txt-mut);font-size:.8rem;padding:5px 8px;border-radius:7px;
  display:inline-block;white-space:nowrap;transition:.15s;
}
#topNav a[data-go]:hover{color:#fff;background:rgba(51,255,140,.12);}
#topNav a[data-go].on{
  color:var(--green);background:rgba(51,255,140,.13);
  box-shadow:inset 0 -2px 0 var(--green);
}
#topNav a[data-go].hot{color:var(--cyan);}
#topNav .tsep{color:var(--txt-dim);opacity:.7;margin:0 2px;}
#topNav a[data-ref]{color:var(--txt-mut);padding:5px 8px;font-size:.95rem;border:none;}
#guruJump{
  margin-left:4px;background:rgba(255,106,213,.1);color:var(--magenta);
  border:1px solid rgba(255,106,213,.45);border-radius:30px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.5px;
  padding:5px 11px;cursor:pointer;white-space:nowrap;transition:.15s;
}
#guruJump:hover{background:var(--magenta);color:#1e0320;}
#guruJump.on{background:var(--magenta);color:#1e0320;box-shadow:0 0 14px rgba(255,106,213,.5);}

/* ============ 右侧折叠组 GURU ·深水 ============ */
.sidenav .sn-group{margin-top:6px;}
.sidenav .sn-group summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:7px;
  color:var(--magenta);font-size:.74rem;letter-spacing:1px;padding:7px 8px;border-radius:8px;
  background:rgba(255,106,213,.06);user-select:none;}
.sidenav .sn-group summary::-webkit-details-marker{display:none;}
.sidenav .sn-group summary::-moz-list-bullet{list-style:none;}
.sidenav .sn-group .chev{transition:transform .2s;color:var(--magenta);}
.sidenav .sn-group[open] .chev{transform:rotate(90deg);}
.sidenav .sn-sub{display:flex;flex-direction:column;gap:1px;margin:4px 0 2px 10px;}
.sidenav a.tocL.tocL-pro .tocNum-pro{color:var(--magenta);}
.sidenav .sn-cap-pro{color:var(--magenta);}

/* ============ §13 历史 Timeline ============ */
.tl{list-style:none;border-left:2px solid var(--line-bright);
  margin:6px 0 6px 6px;padding-left:20px;display:flex;flex-direction:column;gap:20px;position:relative;}
.tl .tl-item{position:relative;display:flex;gap:16px;align-items:flex-start;}
.tl .tl-item::before{content:"";position:absolute;left:-25px;top:6px;width:9px;height:9px;
  border-radius:50%;background:var(--green);box-shadow:var(--glow-g);}
.tl .tl-year{flex:0 0 62px;font-family:var(--sans);font-weight:700;color:var(--cyan);
  font-size:.95rem;letter-spacing:.5px;}
.tl .tl-main{color:var(--txt-mut);font-size:.9rem;line-height:1.75;}
.tl .tl-main b{color:#fff;}

/* ============ Glossary 极客词表 ============ */
.gloss{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:10px;margin:4px 0;}
.gloss .gs{
  border:1px dashed var(--line);border-left:3px solid var(--cyan);
  background:rgba(53,224,255,.035);border-radius:10px;padding:9px 12px;
}
.gloss dt{color:var(--cyan);font-weight:700;letter-spacing:.3px;margin-bottom:3px;font-size:.92rem;}
.gloss dd{color:var(--txt-mut);font-size:.84rem;line-height:1.6;margin:0;}

/* ============ §16 折腾主场 · homebrew ============ */
.hb-card .spec .badge{white-space:normal;line-height:1.5;}
.hb-list{list-style:none;margin:6px 0 0;padding:0;}
.hb-list li{position:relative;padding:.18em 0 .18em 1.15em;color:var(--txt-mut);
  font-size:.84rem;line-height:1.7;}
.hb-list li::before{content:"▸";position:absolute;left:0;color:var(--green);}
.hb-cmds{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.hb-cmd-t{font-size:.74rem;color:var(--cyan);letter-spacing:.4px;margin-bottom:3px;}
.hb-cmd .term{margin:0;box-shadow:none;}
.hb-cmd .term pre{font-size:.78rem;padding:10px 14px;}
.hb-cmd .bar{padding:5px 12px;font-size:.7rem;}
.hb-cmd-label{color:var(--txt-dim);letter-spacing:1px;}
.hb-cav{margin-top:10px;border-top:1px dashed var(--line);padding-top:9px;
  color:var(--txt-dim);font-size:.78rem;line-height:1.7;}
.hb-cav b{color:var(--amber);}
#hbstat{font-weight:700;}
@media(max-width:680px){
  .hb-cmd .term pre{font-size:.72rem;}
}

/* ============ 中窄屏对顶导的微踩油门 ============ */
@media(max-width:1280px) and (min-width:901px){
  #topNav a[data-go],#topNav a[data-ref]{font-size:.72rem;padding:5px 5px;}
  #guruJump{font-size:.64rem;padding:5px 8px;}
}