@charset "UTF-8";
/* HTTP Debugger 中文站 - 全站样式 */

:root{
  --bg:#070a12;
  --bg-2:#0a0f1c;
  --panel:#0d1424;
  --panel-2:#111a2e;
  --line:rgba(148,163,184,.14);
  --line-2:rgba(148,163,184,.26);
  --txt:#e8edf7;
  --txt-dim:#a3b3ca;
  --txt-mute:#6b7c96;
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --violet:#8b5cf6;
  --green:#4ade80;
  --amber:#fbbf24;
  --red:#f87171;
  --grad:linear-gradient(135deg,#22d3ee,#3b82f6 55%,#8b5cf6);
  --grad-soft:linear-gradient(135deg,rgba(34,211,238,.16),rgba(139,92,246,.16));
  --radius:16px;
  --radius-sm:10px;
  --header-h:64px;
  --wrap:1240px;
  --sp-section:96px;
  --sp-section-sm:64px;
  --sp-head:26px;
  --gutter:28px;
  --side:264px;
  --gap-doc:56px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px)}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:.2px;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(34,211,238,.16),transparent 62%),
    radial-gradient(760px 480px at 88% 4%,rgba(59,130,246,.14),transparent 60%),
    radial-gradient(680px 420px at 52% 100%,rgba(139,92,246,.12),transparent 62%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(148,163,184,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(148,163,184,.055) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(1000px 620px at 50% 0%,#000 0%,transparent 78%);
          mask-image:radial-gradient(1000px 620px at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.32;margin:0 0 .5em;letter-spacing:.4px;font-weight:700}
h1{font-size:clamp(1.72rem,3.6vw,2.6rem)}
h2{font-size:clamp(1.3rem,2.3vw,1.72rem)}
h3{font-size:1.06rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.35em}
li{margin:.35em 0}
strong{color:#fff}
code,kbd{font-family:var(--mono);font-size:.88em}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(34,211,238,.28)}

/* ---------- 容器 / 通用 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--sp-section) 0}
.section-sm{padding:var(--sp-section-sm) 0}
.prose{max-width:860px}
.prose h2{margin-top:1.6em}
.muted{color:var(--txt-mute)}
.dim{color:var(--txt-dim)}
.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:120;background:var(--grad);transition:width .08s linear}

/* ---------- 顶栏 ---------- */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,10,18,.82);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header .wrap{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;color:var(--txt);font-weight:800;font-size:1.04rem;letter-spacing:.4px;white-space:nowrap}
.brand:hover{text-decoration:none}
.brand img,.brand svg{width:30px;height:30px;flex:0 0 auto}
.brand small{display:block;font-size:.66rem;font-weight:500;color:var(--txt-mute);letter-spacing:1.4px;line-height:1}
.nav{margin-left:auto}
.nav ul{display:flex;gap:2px;list-style:none;margin:0;padding:0}
.nav a{
  display:block;padding:8px 12px;border-radius:8px;color:var(--txt-dim);
  font-size:.9rem;font-weight:600;white-space:nowrap;
}
.nav a:hover{color:#fff;background:rgba(148,163,184,.1);text-decoration:none}
.nav a[aria-current="page"]{color:var(--cyan);background:rgba(34,211,238,.1)}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:38px;border:1px solid var(--line-2);
  background:var(--panel);border-radius:10px;color:var(--txt);font-size:1.1rem;cursor:pointer;
}

/* ---------- 面包屑 ---------- */
.crumbs{padding-top:20px;font-size:.84rem;color:var(--txt-mute)}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs li+li::before{content:"›";margin-right:8px;color:var(--txt-mute)}
.crumbs a{color:var(--txt-dim)}

/* ---------- 标题区三版式 ---------- */
.section-head{text-align:center;max-width:760px;margin:0 auto var(--sp-head)}
.section-head h2{font-size:clamp(1.42rem,2.6vw,1.95rem)}
.section-head p{color:var(--txt-dim);margin-bottom:0}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding-bottom:14px;margin-bottom:var(--sp-head);
  border-bottom:1px solid var(--line);
  position:relative;
}
.sec-head::after{
  content:"";position:absolute;left:0;bottom:-1px;width:120px;height:2px;background:var(--grad);
}
.sec-head h2{margin:0}
.sec-head p{margin:0;color:var(--txt-mute);font-size:.92rem;max-width:520px}
.rail-head{position:relative;padding-left:16px;margin:0 0 18px}
.rail-head::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
}
.rail-head h2,.rail-head h3{margin:0 0 .3em}
.rail-head p{margin:0;color:var(--txt-mute);font-size:.92rem}

/* 背景节奏带 */
.band{
  background:linear-gradient(180deg,rgba(148,163,184,.045),rgba(148,163,184,.012));
  border-top:1px solid transparent;border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,var(--line-2) 20%,var(--line-2) 80%,transparent) 1;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:11px;border:1px solid var(--line-2);
  background:var(--panel-2);color:var(--txt);font-size:.94rem;font-weight:700;
  cursor:pointer;transition:transform .16s,border-color .16s,box-shadow .16s,background .16s;
  text-decoration:none;
}
.btn:hover{transform:translateY(-2px);border-color:var(--cyan);box-shadow:0 8px 24px rgba(34,211,238,.14);text-decoration:none;color:#fff}
.btn-primary{
  border-color:transparent;color:#041018;
  background:var(--grad);box-shadow:0 10px 28px rgba(34,211,238,.22);
}
.btn-primary:hover{color:#041018;box-shadow:0 14px 34px rgba(34,211,238,.3)}
.btn-lg{padding:15px 30px;font-size:1.02rem;border-radius:13px}
.btn-sm{padding:7px 14px;font-size:.84rem;border-radius:9px}
.btn-ghost{background:transparent}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

.pill{
  display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;
  border:1px solid rgba(34,211,238,.3);background:rgba(34,211,238,.08);
  color:var(--cyan);font-size:.78rem;font-weight:700;letter-spacing:.6px;
}
.pill--violet{border-color:rgba(139,92,246,.32);background:rgba(139,92,246,.09);color:#c4b5fd}
.pill--green{border-color:rgba(74,222,128,.32);background:rgba(74,222,128,.09);color:var(--green)}
.pill--amber{border-color:rgba(251,191,36,.32);background:rgba(251,191,36,.09);color:var(--amber)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:7px;background:rgba(148,163,184,.12);
  color:var(--txt-dim);font-size:.76rem;font-weight:600;
}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-asym{grid-template-columns:1.35fr 1fr}
.g-side{grid-template-columns:.78fr 1.22fr;gap:36px;align-items:start}

/* ---------- 卡片 ---------- */
.card{
  background:linear-gradient(180deg,var(--panel),rgba(13,20,36,.55));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:transform .18s,border-color .18s,box-shadow .18s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.34);box-shadow:0 16px 40px rgba(0,0,0,.36)}
.card h3{margin-bottom:.45em}
.card p{color:var(--txt-dim);font-size:.93rem;margin-bottom:0}
.card--plain{background:transparent;box-shadow:none;padding:0;border:0}
.card--plain:hover{transform:none;box-shadow:none;border:0}
.card--accent{position:relative;overflow:hidden}
.card--accent::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad)}
.card--row{display:grid;grid-template-columns:42px minmax(0,1fr);gap:4px 14px}
.card--row .ico{
  grid-row:1 / span 2;width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;font-size:1.1rem;font-weight:800;color:#041018;
  background:var(--grad-soft);border:1px solid var(--line-2);color:var(--cyan);
}
.card--row h3{margin:0}
.card--row p{margin:0}
.card ul{color:var(--txt-dim);font-size:.9rem;padding-left:1.15em;margin:.5em 0 0}
.card ul li::marker{color:var(--cyan)}

.stat{text-align:center}
.stat b{display:block;font-size:clamp(1.5rem,3vw,2.1rem);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat span{color:var(--txt-mute);font-size:.84rem}

/* 横向泳道 */
.lane{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;counter-reset:lane}
.lane-item{position:relative;padding-top:6px;counter-increment:lane}
.lane-item::before{
  content:counter(lane);display:grid;place-items:center;width:34px;height:34px;border-radius:11px;
  background:var(--grad);color:#041018;font-weight:800;font-size:.95rem;margin-bottom:14px;
}
.lane-item::after{
  content:"";position:absolute;top:23px;left:46px;right:-26px;height:1px;
  background:linear-gradient(90deg,var(--line-2),transparent);
}
.lane-item:last-child::after{display:none}
.lane-item h3{margin:0 0 .35em;font-size:1rem}
.lane-item p{color:var(--txt-dim);font-size:.9rem;margin:0}

/* ---------- 步骤 ---------- */
.steps{list-style:none;margin:0;padding:0;counter-reset:st}
.steps li{
  position:relative;padding:0 0 24px 46px;counter-increment:st;
  border-left:1px dashed var(--line-2);margin:0;
}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{
  content:counter(st);position:absolute;left:-16px;top:-2px;
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:var(--panel-2);border:1px solid rgba(34,211,238,.4);color:var(--cyan);
  font-weight:800;font-size:.9rem;
}
.steps h3{margin:.1em 0 .3em;font-size:1rem}
.steps p{color:var(--txt-dim);font-size:.92rem;margin:0}
.steps p+p{margin-top:.5em}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.91rem}
thead th{
  text-align:left;padding:14px 18px;background:rgba(148,163,184,.07);
  color:var(--txt);font-weight:700;font-size:.86rem;letter-spacing:.4px;
  border-bottom:1px solid var(--line);
}
tbody td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--txt-dim);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(148,163,184,.035)}
td b,th b{color:var(--txt)}
.yes{color:var(--green);font-weight:700}
.no{color:var(--red);font-weight:700}
.mid{color:var(--amber);font-weight:700}

/* ---------- 代码块 ---------- */
.code{
  position:relative;background:#060910;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;margin:0 0 1em;
}
.code .code-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.78rem;color:var(--txt-mute);margin-bottom:8px;
}
.code pre{margin:0;overflow-x:auto}
.code code{font-family:var(--mono);font-size:.85rem;color:#cbd5e1;white-space:pre;line-height:1.7}
.copy{
  border:1px solid var(--line-2);background:var(--panel-2);color:var(--txt-dim);
  border-radius:7px;padding:3px 10px;font-size:.74rem;font-weight:700;cursor:pointer;
}
.copy:hover{color:var(--cyan);border-color:var(--cyan)}
code.inline{background:rgba(148,163,184,.12);padding:2px 6px;border-radius:5px;font-size:.86em;color:#cbd5e1}

/* ---------- 提示块 ---------- */
.note{
  border:1px solid var(--line);border-left:3px solid var(--cyan);border-radius:var(--radius-sm);
  background:rgba(34,211,238,.05);padding:14px 18px;margin:0 0 1em;font-size:.92rem;color:var(--txt-dim);
}
.note strong{color:#fff}
.note--warn{border-left-color:var(--amber);background:rgba(251,191,36,.06)}
.note--danger{border-left-color:var(--red);background:rgba(248,113,113,.07)}
.note--ok{border-left-color:var(--green);background:rgba(74,222,128,.05)}

/* ---------- 手风琴 FAQ ---------- */
.acc{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.acc-item+acc-item{}
.acc-item{border-bottom:1px solid var(--line)}
.acc-item:last-child{border-bottom:0}
.acc-q{
  width:100%;text-align:left;background:none;border:0;color:var(--txt);
  font:inherit;font-weight:700;font-size:.98rem;padding:17px 52px 17px 22px;cursor:pointer;
  position:relative;display:block;
}
.acc-q:hover{background:rgba(148,163,184,.04)}
.acc-q::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--cyan);font-size:1.3rem;font-weight:400;line-height:1;
}
.acc-item.open .acc-q::after{content:"−"}
.acc-a{display:none;padding:0 22px 20px;color:var(--txt-dim);font-size:.93rem}
.acc-item.open .acc-a{display:block}
.acc-a p:last-child{margin-bottom:0}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:26px;list-style:none;margin:0}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(139,92,246,.5),transparent)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);
}
.tl-item.old::before{border-color:var(--txt-mute)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-head h3{margin:0;font-size:1.06rem}
.tl-date{color:var(--txt-mute);font-size:.82rem;font-family:var(--mono)}
.tl-item ul{color:var(--txt-dim);font-size:.92rem;margin:.6em 0 0}
.tl-item ul li::marker{color:var(--cyan)}
.legend{display:flex;flex-wrap:wrap;gap:16px;font-size:.82rem;color:var(--txt-mute);margin-bottom:24px}
.legend span{display:inline-flex;align-items:center;gap:7px}
.legend i{width:10px;height:10px;border-radius:50%;display:inline-block;border:2px solid var(--cyan)}
.legend i.old{border-color:var(--txt-mute)}

/* ---------- 文档双栏 + 吸顶目录 ---------- */
.doc{display:grid;grid-template-columns:var(--side) minmax(0,1fr);gap:var(--gap-doc);align-items:start}
.doc-main{min-width:0}
.doc-main .wrap{padding-left:0;padding-right:0;max-width:none}
.doc-main .section{padding:0 0 var(--sp-section-sm)}
.doc-main .section:first-child{padding-top:0}
.doc-toc{
  position:sticky;top:calc(var(--header-h) + 24px);
  max-height:calc(100vh - var(--header-h) - 48px);overflow-y:auto;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:16px;
}
.toc-toggle{
  display:none;width:100%;text-align:left;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-sm);color:var(--txt);font:inherit;font-weight:700;font-size:.95rem;
  padding:12px 16px;cursor:pointer;margin-bottom:14px;
}
.toc-toggle .ico{float:right;color:var(--cyan)}
.toc-title{font-size:.78rem;letter-spacing:1.2px;color:var(--txt-mute);font-weight:700;margin:2px 0 10px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{margin:0}
.toc a{
  display:block;padding:7px 10px;border-radius:8px;color:var(--txt-dim);font-size:.88rem;
  border-left:2px solid transparent;
}
.toc a:hover{background:rgba(148,163,184,.07);color:#fff;text-decoration:none}
.toc a.active{color:var(--cyan);background:rgba(34,211,238,.08);border-left-color:var(--cyan)}

/* ---------- 下载相关 ---------- */
.dl-hero{
  display:grid;grid-template-columns:1.22fr .78fr;gap:30px;align-items:center;
  border:1px solid var(--line);border-radius:20px;padding:34px;
  background:linear-gradient(135deg,rgba(34,211,238,.07),rgba(139,92,246,.06)),var(--panel);
}
.dl-hero h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin:.5em 0 .5em}
.dl-hero-lead{color:var(--txt-dim);font-size:.96rem;margin-bottom:0}
.dl-hero-act{margin-top:22px}
.dl-hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.dl-hero-side{min-width:0}
.dl-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:22px;display:flex;flex-direction:column}
.dl-card h3{margin:.3em 0 .3em}
.dl-card ul{font-size:.88rem;color:var(--txt-dim);flex:1}
.dl-card .btn{margin-top:14px;align-self:flex-start}
.dl-card.featured{border-color:rgba(34,211,238,.4);box-shadow:0 0 0 1px rgba(34,211,238,.14),0 18px 44px rgba(34,211,238,.1)}

.files{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--panel)}
.files-row{display:grid;grid-template-columns:258px minmax(0,1fr);gap:18px;padding:15px 20px;border-bottom:1px solid var(--line);align-items:start}
.files-row:last-child{border-bottom:0}
.files-row b{font-family:var(--mono);font-size:.86rem;color:var(--cyan);word-break:break-all}
.files-row p{margin:0;color:var(--txt-dim);font-size:.9rem}

/* ---------- 截图 / 灯箱 ---------- */
.shots{display:grid;gap:22px;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}
.shots--mid{max-width:780px;margin-left:auto;margin-right:auto;grid-template-columns:minmax(0,1fr)}
.shot{
  display:block;width:100%;padding:0;border:1px solid var(--line-2);border-radius:12px;overflow:hidden;
  background:#f7f9fc;cursor:zoom-in;transition:transform .18s,box-shadow .18s,border-color .18s;
}
.shot:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:0 14px 34px rgba(0,0,0,.4)}
.shot img{width:100%;display:block}
.shot-cap{display:block;padding:9px 12px;background:#0d1424;color:var(--txt-mute);font-size:.8rem;text-align:center;border-top:1px solid var(--line)}
.lb{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:28px;background:rgba(3,6,12,.9)}
.lb.open{display:flex}
.lb-mask{position:absolute;inset:0;border:0;background:transparent;cursor:default;width:100%;height:100%}
.lb-box{position:relative;max-width:1180px;width:100%;max-height:calc(100vh - 56px);display:flex;flex-direction:column;gap:12px}
.lb-img{width:100%;max-height:calc(100vh - 150px);object-fit:contain;background:#f7f9fc;border-radius:12px;border:1px solid var(--line-2)}
.lb-bar{display:flex;align-items:center;gap:14px;color:var(--txt-dim);font-size:.88rem}
.lb-bar b{color:var(--txt);font-size:.96rem}
.lb-x{position:absolute;top:-14px;right:-6px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line-2);background:var(--panel);color:var(--txt);font-size:1.3rem;cursor:pointer;line-height:1}
.lb-nav{display:flex;gap:8px;margin-left:auto}
.lb-nav button{width:36px;height:32px;border-radius:8px;border:1px solid var(--line-2);background:var(--panel);color:var(--txt);cursor:pointer}

/* ---------- 继续阅读 / 内链 ---------- */
.related{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}
.related a{
  display:block;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px 18px;
  background:var(--panel);color:var(--txt);transition:border-color .16s,transform .16s;
}
.related a:hover{border-color:var(--cyan);transform:translateY(-3px);text-decoration:none}
.related b{display:block;margin-bottom:4px}
.related span{color:var(--txt-mute);font-size:.86rem}

/* ---------- 首页 hero ---------- */
.hero{padding:76px 0 var(--sp-section);position:relative}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}
.hero h1{font-size:clamp(1.9rem,4.2vw,3rem);margin:.4em 0 .5em;letter-spacing:.6px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--txt-dim);font-size:1.04rem;max-width:560px}
.hero-visual{
  border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#f7f9fc;
  box-shadow:0 30px 70px rgba(0,0,0,.5);
}
.hero-visual img{width:100%;display:block}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:rgba(6,9,16,.6);padding:56px 0 28px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:32px}
.foot-desc{color:var(--txt-mute);font-size:.88rem;max-width:340px}
.footer h4{font-size:.86rem;letter-spacing:1.4px;color:var(--txt-mute);margin-bottom:14px;text-transform:uppercase}
.footer ul{list-style:none;margin:0;padding:0}
.footer li{margin:.42em 0}
.footer a{color:var(--txt-dim);font-size:.88rem}
.footer a:hover{color:var(--cyan)}
.foot-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--txt-mute);font-size:.82rem;
}
.disclaim{
  margin-top:22px;padding:14px 18px;border:1px dashed var(--line-2);border-radius:var(--radius-sm);
  color:var(--txt-mute);font-size:.82rem;background:rgba(148,163,184,.035);
}

/* 回顶 */
.to-top{
  position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-2);background:var(--panel);color:var(--txt);cursor:pointer;
  display:none;place-items:center;font-size:1.1rem;z-index:90;
}
.to-top.show{display:grid}

/* ---------- 目录高亮滚动偏移 ---------- */
h2[id],h3[id]{scroll-margin-top:calc(var(--header-h) + 24px)}

/* ---------- 下载弹窗（扫码 / 直达二选一） ---------- */
.dl-modal{position:fixed;inset:0;z-index:210;display:flex;align-items:center;justify-content:center;padding:24px}
.dl-modal[hidden]{display:none}
.dl-modal-mask{position:absolute;inset:0;width:100%;height:100%;border:0;background:rgba(3,6,12,.86);cursor:default}
.dl-modal-box{
  position:relative;z-index:1;width:100%;max-width:720px;
  max-height:calc(100vh - 36px);overflow-y:auto;
  background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line-2);border-radius:20px;padding:30px;
  box-shadow:0 30px 80px rgba(0,0,0,.62);
}
.dl-modal-x{
  position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-2);background:var(--panel-2);color:var(--txt);
  font-size:1.25rem;line-height:1;cursor:pointer;
}
.dl-modal-x:hover{color:var(--cyan);border-color:var(--cyan)}
.dl-modal-head{margin-bottom:22px;padding-right:36px}
.dl-modal-head h2{font-size:1.32rem;margin:.45em 0 .4em}
.dl-modal-head p{margin:0;color:var(--txt-mute);font-size:.9rem}
.dl-modal-body{display:grid;grid-template-columns:296px minmax(0,1fr);gap:26px;align-items:start}
.dl-modal-qr{text-align:center}
.qr-card{display:inline-block;padding:10px;background:#fff;border-radius:14px;line-height:0}
.qr-card img{width:212px;height:212px;border-radius:8px}
.qr-card--lg img{width:150px;height:150px}
.dl-modal-qr p{margin:10px 0 0;color:var(--txt-mute);font-size:.84rem}
.dl-modal-act{display:flex;flex-direction:column;gap:12px}
.dl-modal-act .btn{width:100%}
.dl-mini{list-style:none;margin:6px 0 0;padding:0;color:var(--txt-mute);font-size:.82rem}
.dl-mini li{margin:.3em 0;padding-left:14px;position:relative}
.dl-mini li::before{content:"·";position:absolute;left:2px;color:var(--cyan)}
.dl-modal-foot{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:22px;padding-top:16px;border-top:1px solid var(--line);
  color:var(--txt-mute);font-size:.8rem;
}
body.dl-lock{overflow:hidden}
@media (max-width:900px){
  .dl-modal-body{grid-template-columns:minmax(0,1fr);gap:20px}
  .dl-modal-qr{order:2}
}
@media (max-width:560px){
  .dl-modal{padding:14px}
  .dl-modal-box{padding:20px 16px}
  .qr-card img{width:170px;height:170px}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  :root{--sp-section:76px;--sp-section-sm:52px;--side:232px;--gap-doc:36px}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .hero-visual{order:2}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1020px){
  .doc{grid-template-columns:minmax(0,1fr);gap:0}
  .doc-toc{position:static;max-height:none;margin-bottom:26px}
  .toc-toggle{display:block}
  .toc{display:none}
  .doc-toc.open .toc{display:block}
}
@media (max-width:900px){
  :root{--gutter:20px;--sp-section:60px;--sp-section-sm:44px}
  .nav-toggle{display:block}
  .nav{
    display:none;position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:rgba(7,10,18,.98);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    padding:16px var(--gutter) 40px;overflow-y:auto;
  }
  .nav.open{display:block}
  .nav ul{flex-direction:column;gap:4px}
  .nav a{padding:13px 14px;font-size:1rem;border-radius:10px}
  .g-2,.g-3,.g-4,.g-asym,.g-side,.lane{grid-template-columns:minmax(0,1fr)}
  .lane{gap:22px}
  .lane-item::after{display:none}
  .dl-hero{grid-template-columns:minmax(0,1fr);padding:24px;gap:22px}
  .dl-hero-side{border-top:1px solid var(--line);padding-top:20px}
  .files-row{grid-template-columns:minmax(0,1fr);gap:6px}
  .shots{grid-template-columns:minmax(0,1fr)}
  .related{grid-template-columns:minmax(0,1fr)}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:720px){
  table.stack{min-width:0}
  table.stack thead{display:none}
  table.stack,table.stack tbody{display:block}
  table.stack tbody tr{display:block;padding:8px 16px 12px;border-bottom:1px solid var(--line)}
  table.stack tbody tr:last-child{border-bottom:0}
  table.stack tbody td{display:grid;grid-template-columns:92px minmax(0,1fr);gap:12px;padding:8px 0;border:0}
  table.stack tbody td::before{content:attr(data-label);font-size:.78rem;color:var(--txt-mute);font-weight:700}
  .code code{white-space:pre-wrap;word-break:break-word}
  .code pre{white-space:pre-wrap;word-break:break-word}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .hero{padding:48px 0 var(--sp-section)}
}
@media (max-width:560px){
  :root{--sp-section:52px;--sp-section-sm:38px}
  .btn,.btn-lg{width:100%}
  .btn-row{gap:10px}
  h1{font-size:1.6rem}
  .card{padding:19px}
  .dl-hero{padding:19px}
  .acc-q{padding:15px 46px 15px 16px;font-size:.94rem}
  .acc-a{padding:0 16px 16px}
  .lb{padding:14px}
  .to-top{right:12px;bottom:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}