/* 鲲鹏恒控 官方网站 —— 样式表
   设计语言:工业科技感 · 深色英雄区 + 明亮内容区 · 蓝/青强调色 */
:root{
  --bg:#f6f8fb; --surface:#ffffff; --ink:#0f1b2d; --muted:#5a6b82;
  --line:#e4eaf2; --brand:#0a6ed1; --brand-2:#3ba9ff; --brand-ink:#084c93;
  --accent:#12c4b5; --dark:#0b1626; --dark-2:#101f36;
  --radius:16px; --radius-sm:10px; --shadow:0 10px 30px rgba(15,27,45,.08);
  --shadow-lg:0 24px 60px rgba(8,42,86,.16);
  --font:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  --maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1rem}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-ink)}
img,svg{display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.grad{background:linear-gradient(100deg,var(--brand-2),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand);background:rgba(10,110,209,.09);
  padding:.4em .9em;border-radius:999px;margin-bottom:1rem}
.lead{font-size:1.15rem;max-width:60ch}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:1rem;
  padding:.8em 1.6em;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease;font-family:inherit}
.btn:hover{transform:translateY(-2px)}
.btn-sm{padding:.55em 1.1em;font-size:.9rem}
.btn-lg{padding:.95em 2em;font-size:1.08rem}
.btn-primary{background:linear-gradient(100deg,var(--brand),var(--brand-2));color:#fff;
  box-shadow:0 8px 22px rgba(10,110,209,.3)}
.btn-primary:hover{color:#fff;box-shadow:0 12px 30px rgba(10,110,209,.42)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---- 顶栏 ---- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;height:66px}
.brand{display:flex;align-items:center;gap:10px}
.brand-name{font-weight:800;font-size:1.15rem;color:var(--ink);letter-spacing:-.02em}
.nav-links{display:flex;gap:6px;margin-left:12px;flex:1}
.nav-links a{color:var(--muted);font-weight:600;padding:.5em .9em;border-radius:8px;
  font-size:.98rem}
.nav-links a:hover{color:var(--ink);background:rgba(10,110,209,.06)}
.nav-links a.on{color:var(--brand);background:rgba(10,110,209,.09)}
.nav-cta{white-space:nowrap}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ---- 英雄区 ---- */
.hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;
  padding:96px 0 80px}
.hero-bg{position:absolute;inset:0;
  background:
    radial-gradient(60% 80% at 78% 10%,rgba(59,169,255,.28),transparent 60%),
    radial-gradient(50% 70% at 12% 90%,rgba(18,196,181,.20),transparent 60%),
    linear-gradient(160deg,#0b1626,#101f36 60%,#0d2748);}
.hero-bg::after{content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(70% 70% at 50% 30%,#000,transparent)}
.hero-inner{position:relative}
.hero .eyebrow{color:#8fd0ff;background:rgba(59,169,255,.14)}
.hero-title{font-size:clamp(2.2rem,5.5vw,4rem);margin-bottom:.4em}
.hero-sub{font-size:1.2rem;color:#b9c6d9;max-width:56ch;margin-bottom:2rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px}
.hero .btn-ghost{border-color:rgba(255,255,255,.28);color:#eaf2ff}
.hero .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}

/* ---- 统计数字 ---- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  border-top:1px solid rgba(255,255,255,.12);padding-top:32px}
.stat-num{font-size:2.6rem;font-weight:800;letter-spacing:-.02em;
  background:linear-gradient(100deg,#fff,#8fd0ff);-webkit-background-clip:text;
  background-clip:text;color:transparent}
.stat-label{color:#dbe6f4;font-weight:600;margin-top:2px}
.stat-hint{color:#8497ad!important}

/* ---- 通用区块 ---- */
.section{padding:84px 0}
.section-head{text-align:center;max-width:64ch;margin:0 auto 48px}
.section-head p{font-size:1.1rem}
.band{background:linear-gradient(180deg,#fff,#eef3fa)}

/* ---- 卡片网格 ---- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card h3{margin-bottom:.4em}
.card-icon{width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(10,110,209,.12),rgba(18,196,181,.14));
  position:relative}
.card-icon::after{content:"";position:absolute;inset:0;background:var(--brand);
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-position:center;
  mask-position:center;-webkit-mask-size:26px;mask-size:26px}
.i-cube::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M21 16V8l-9-5-9 5v8l9 5 9-5z'/%3E%3Cpath d='M3.3 7 12 12l8.7-5M12 22V12'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M21 16V8l-9-5-9 5v8l9 5 9-5z'/%3E%3Cpath d='M3.3 7 12 12l8.7-5M12 22V12'/%3E%3C/svg%3E")}
.i-ai::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='4' y='7' width='16' height='12' rx='2'/%3E%3Cpath d='M12 7V3M8 3h8M9 12h.01M15 12h.01M9 16h6'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='4' y='7' width='16' height='12' rx='2'/%3E%3Cpath d='M12 7V3M8 3h8M9 12h.01M15 12h.01M9 16h6'/%3E%3C/svg%3E")}
.i-plug::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M9 2v6M15 2v6M7 8h10v3a5 5 0 0 1-10 0V8zM12 16v6'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M9 2v6M15 2v6M7 8h10v3a5 5 0 0 1-10 0V8zM12 16v6'/%3E%3C/svg%3E")}
.i-gauge::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 14a9 9 0 1 0-8-5'/%3E%3Cpath d='M12 14l4-4M3 15h4'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 14a9 9 0 1 0-8-5'/%3E%3Cpath d='M12 14l4-4M3 15h4'/%3E%3C/svg%3E")}
.i-shield::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3l7 3v6c0 4-3 7-7 9-4-2-7-5-7-9V6l7-3z'/%3E%3Cpath d='M9 12l2 2 4-4'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3l7 3v6c0 4-3 7-7 9-4-2-7-5-7-9V6l7-3z'/%3E%3Cpath d='M9 12l2 2 4-4'/%3E%3C/svg%3E")}
.i-split::after{-webkit-mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='16' rx='2'/%3E%3Cpath d='M12 4v16'/%3E%3C/svg%3E");mask-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='3' y='4' width='18' height='16' rx='2'/%3E%3Cpath d='M12 4v16'/%3E%3C/svg%3E")}

/* ---- band 交付流程 ---- */
.band-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.flow{list-style:none;padding:0;margin:0 0 1.6rem}
.flow li{position:relative;padding-left:28px;margin-bottom:.9rem;color:var(--muted)}
.flow li::before{content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;
  border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(10,110,209,.14)}
.flow b{color:var(--ink)}
.flow-diagram{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
  background:var(--dark);border-radius:var(--radius);padding:40px 24px;color:#fff;
  box-shadow:var(--shadow-lg)}
.flow-node{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:18px 20px;font-weight:600;text-align:center;line-height:1.35}
.flow-node.accent{background:linear-gradient(100deg,var(--brand),var(--brand-2));border:0}
.flow-node .small{color:#a9bdd6;font-weight:400}
.flow-arrow{color:var(--brand-2);font-size:1.5rem;font-weight:700}

/* ---- 场景 ---- */
.scenario-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scenario{display:flex;align-items:flex-start;gap:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px 24px;
  font-weight:500;box-shadow:var(--shadow)}
.scenario .dot{flex:none;width:12px;height:12px;border-radius:50%;margin-top:.45em;
  background:linear-gradient(135deg,var(--brand),var(--accent))}

/* ---- CTA 区 ---- */
.cta-band{background:linear-gradient(120deg,#0b1626,#123063);color:#fff;text-align:center;
  border-radius:0}
.cta-inner{max-width:60ch;margin:0 auto}
.cta-band .muted{color:#b9c6d9}
.cta-band h2{color:#fff}

/* ---- 内页 hero ---- */
.page-hero{background:linear-gradient(180deg,#0b1626,#12233c);color:#fff;padding:80px 0 64px}
.page-hero h1{color:#fff}
.page-hero .muted{color:#b9c6d9}
.page-hero .eyebrow{color:#8fd0ff;background:rgba(59,169,255,.14)}
.ai-hero{background:
  radial-gradient(60% 90% at 80% 0%,rgba(18,196,181,.28),transparent 55%),
  linear-gradient(180deg,#0b1626,#12233c)}

/* ---- 能力表 ---- */
.cap-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow)}
.cap-row{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:24px 30px;
  border-bottom:1px solid var(--line)}
.cap-row:last-child{border-bottom:0}
.cap-row:hover{background:rgba(10,110,209,.03)}
.cap-name{font-weight:700;color:var(--ink)}
.cap-desc{margin:0}

/* ---- AI 列表 ---- */
.ai-list{display:flex;flex-direction:column;gap:22px;max-width:900px;margin:0 auto}
.ai-item{display:grid;grid-template-columns:64px 1fr;gap:24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.ai-tag{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;
  font-size:1.6rem;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--accent))}
.ai-body h3{margin-bottom:.3em}
.ai-body p{margin:0}

/* ---- 安全边界 ---- */
.boundary{list-style:none;padding:0;margin:0 auto 2rem;max-width:820px;display:grid;gap:14px}
.boundary li{display:flex;gap:14px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 22px;
  box-shadow:var(--shadow)}
.lock{flex:none;width:22px;height:22px;margin-top:2px;background:var(--brand);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='5' y='11' width='14' height='9' rx='2'/%3E%3Cpath d='M8 11V7a4 4 0 0 1 8 0v4'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Crect x='5' y='11' width='14' height='9' rx='2'/%3E%3Cpath d='M8 11V7a4 4 0 0 1 8 0v4'/%3E%3C/svg%3E") center/contain no-repeat}
.boundary-quote{text-align:center;font-size:1.35rem;font-weight:700;color:var(--brand-ink);
  max-width:40ch;margin:0 auto}

/* ---- MCP 代码示例 ---- */
.mcp-callout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.code-sample{background:var(--dark);color:#e7f0fb;border-radius:var(--radius);padding:26px 28px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:.92rem;
  line-height:1.9;overflow-x:auto;box-shadow:var(--shadow-lg);margin:0}
.code-sample .c{color:#7fd6cc}

/* ---- 图示(SVG 流程图 / 架构图) ---- */
.diagram-figure{margin:0 auto;max-width:1000px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow)}
.diagram-figure img{width:100%;height:auto;display:block}
.diagram-figure figcaption{margin-top:16px;text-align:center;color:var(--muted);font-size:.92rem}
.diagram-actions{text-align:center;margin-top:32px}
.band .diagram-figure{background:var(--surface)}

/* ---- 界面截图展示 ---- */
.showcase{background:linear-gradient(180deg,#0b1626,#12233c);color:#fff}
.showcase h2{color:#fff}
.showcase .muted{color:#b9c6d9}
.shot-frame{margin:0;border-radius:14px;overflow:hidden;background:#0e1a2c;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 80px rgba(0,0,0,.5);
  max-width:1040px;margin:0 auto}
.shot-bar{display:flex;align-items:center;gap:8px;padding:11px 16px;
  background:#16233a;border-bottom:1px solid rgba(255,255,255,.08)}
.shot-bar span{width:11px;height:11px;border-radius:50%;background:#3a4a63}
.shot-bar span:nth-child(1){background:#ff5f57}
.shot-bar span:nth-child(2){background:#febc2e}
.shot-bar span:nth-child(3){background:#28c840}
.shot-bar em{margin-left:12px;font-style:normal;font-size:.85rem;color:#8497ad}
.shot-frame img{width:100%;display:block}
.shot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:32px}
.shot-grid .shot-frame{max-width:none}
.shot-cap{padding:14px 18px;font-size:.92rem;color:#b9c6d9;background:#101f36}

/* ---- 联系表单 ---- */
.contact-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:start}
.contact-form{display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-weight:600;font-size:.95rem}
.req{color:#e0483d}
.field input,.field textarea{font-family:inherit;font-size:1rem;padding:12px 14px;
  border:1px solid var(--line);border-radius:10px;background:#fbfcfe;color:var(--ink);
  transition:border .15s,box-shadow .15s;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(10,110,209,.15);background:#fff}
.form-note{margin:0}
.form-msg{font-weight:600;min-height:1.2em}
.form-msg.ok{color:#12946a}
.form-msg.err{color:#e0483d}
.contact-side{display:flex;flex-direction:column;gap:20px}
.contact-side .card{padding:24px}
.mp-card{text-align:center}
.mp-qr{width:100%;max-width:320px;margin:14px auto 0;border-radius:10px}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.contact-list li{display:flex;align-items:baseline;gap:12px}
.contact-list li span{flex:none;width:82px;color:var(--muted);font-size:.9rem}
.contact-list li b{color:var(--ink);font-weight:700;letter-spacing:.01em}
.tick,.contact-side ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.tick li{position:relative;padding-left:26px;color:var(--muted)}
.tick li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800}

/* ---- 下载中心 ---- */
.dl-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:var(--surface);box-shadow:var(--shadow)}
.dl-head,.dl-row{display:grid;grid-template-columns:1.4fr .7fr .7fr 2fr auto;gap:18px;
  align-items:center;padding:16px 24px}
.dl-head{background:#f0f4fa;font-weight:700;color:var(--muted);font-size:.85rem;
  letter-spacing:.03em;border-bottom:1px solid var(--line)}
.dl-row{border-bottom:1px solid var(--line)}
.dl-row:last-child{border-bottom:0}
.dl-row:hover{background:rgba(10,110,209,.03)}
.dl-name{font-weight:700;color:var(--ink)}
.dl-act{justify-self:end}
.dl-soon{opacity:.6;cursor:default}
.dl-soon:hover{transform:none}
.dl-empty{padding:40px;text-align:center}
.dl-empty p{margin:0}
.link-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.link-group h3{margin-bottom:.6em}
.link-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.link-list a{display:inline-flex;align-items:center;gap:8px;font-weight:600}
.link-list a::before{content:"→";color:var(--brand-2);font-weight:700}
@media (max-width:860px){
  .dl-head{display:none}
  .dl-row{grid-template-columns:1fr;gap:6px;padding:18px 20px}
  .dl-act{justify-self:start;margin-top:8px}
}

/* ---- 页脚 ---- */
.site-footer{background:var(--dark);color:#c6d3e4;padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer-brand .brand-name{color:#fff}
.footer-brand .muted{color:#9fb0c6}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:1rem}
.footer-col a{display:block;color:#9fb0c6;padding:5px 0}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:22px}
.footer-bottom .muted{color:#8497ad}

/* ---- 进入动画 ---- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .btn:hover,.card:hover{transform:none}
}

/* ---- 响应式 ---- */
@media (max-width:860px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  body.nav-open .nav-links{display:flex;position:absolute;top:66px;left:0;right:0;
    flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px;
    gap:2px;box-shadow:var(--shadow)}
  .card-grid,.scenario-grid,.band-inner,.contact-grid,.mcp-callout,.footer-grid{
    grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:28px 20px}
  .cap-row{grid-template-columns:1fr;gap:6px}
  .ai-item{grid-template-columns:1fr}
  .section{padding:60px 0}
  .footer-grid{gap:28px}
}
@media (max-width:480px){
  .stat-row{grid-template-columns:1fr}
  .hero{padding:64px 0 56px}
}

/* ---- 资料中心:手册列表 ---- */
.docs-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:26px}
.docs-card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.docs-card-head h2{margin:0;font-size:1.3rem}
.docs-card-head h2 a{color:var(--ink)}
.docs-card-head h2 a:hover{color:var(--brand)}
.docs-toc{list-style:none;margin:20px 0 0;padding:0}
.docs-toc li{margin:0}
.docs-toc a{display:flex;align-items:baseline;gap:10px;padding:9px 10px;border-radius:8px;
  color:var(--muted);font-weight:600;border-bottom:1px solid var(--line)}
.docs-toc li:last-child a{border-bottom:0}
.docs-toc a:hover{color:var(--brand);background:rgba(10,110,209,.06)}
.toc-no{flex:none;font-size:.8rem;font-weight:800;color:var(--brand);
  background:rgba(10,110,209,.1);border-radius:6px;padding:1px 7px;letter-spacing:.02em}

/* ---- 资料中心:阅读页(侧栏 + 正文) ---- */
.docs-layout{display:grid;grid-template-columns:266px 1fr;gap:40px;
  padding-top:40px;padding-bottom:64px;align-items:start}
.docs-side{position:sticky;top:88px;align-self:start}
.docs-side-back{display:inline-block;font-weight:600;color:var(--muted);margin-bottom:14px}
.docs-side-back:hover{color:var(--brand)}
.docs-side-title{font-weight:800;font-size:1.05rem;color:var(--ink);margin-bottom:12px;
  padding-bottom:12px;border-bottom:1px solid var(--line)}
.docs-side-nav{display:flex;flex-direction:column;gap:2px}
.docs-side-nav a{display:flex;align-items:baseline;gap:9px;padding:8px 10px;border-radius:8px;
  color:var(--muted);font-weight:600;font-size:.95rem}
.docs-side-nav a:hover{color:var(--brand);background:rgba(10,110,209,.06)}
.docs-side-nav a.on{color:var(--brand);background:rgba(10,110,209,.1)}
.docs-side-zip{margin-top:16px}

.docs-main{min-width:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);padding:44px 48px}
.md-body{color:var(--ink);line-height:1.75;font-size:1rem;overflow-wrap:break-word}
.md-body h1{font-size:1.9rem;letter-spacing:-.02em;margin:.2em 0 .6em}
.md-body h2{font-size:1.4rem;margin:1.8em 0 .6em;padding-bottom:.35em;border-bottom:1px solid var(--line)}
.md-body h3{font-size:1.15rem;margin:1.5em 0 .5em}
.md-body h4{font-size:1rem;margin:1.3em 0 .4em}
.md-body p{margin:.7em 0}
.md-body ul,.md-body ol{margin:.7em 0;padding-left:1.5em}
.md-body li{margin:.3em 0}
.md-body a{color:var(--brand);font-weight:600}
.md-body a:hover{color:var(--brand-ink);text-decoration:underline}
.md-body strong{color:var(--ink)}
.md-body code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.9em;background:rgba(10,110,209,.08);color:var(--brand-ink);
  padding:.12em .4em;border-radius:5px}
.md-body pre{background:var(--dark);color:#e8eef7;border-radius:var(--radius-sm);
  padding:18px 20px;overflow:auto;margin:1.1em 0;line-height:1.55}
.md-body pre code{background:none;color:inherit;padding:0;font-size:.86rem}
.md-body blockquote{margin:1.1em 0;padding:.6em 1.1em;border-left:3px solid var(--accent);
  background:rgba(18,196,181,.07);border-radius:0 8px 8px 0;color:var(--muted)}
.md-body blockquote p{margin:.35em 0}
.md-body table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:.94rem;
  display:block;overflow-x:auto}
.md-body th,.md-body td{border:1px solid var(--line);padding:9px 13px;text-align:left;vertical-align:top}
.md-body th{background:rgba(10,110,209,.06);font-weight:700;color:var(--ink);white-space:nowrap}
.md-body tr:nth-child(even) td{background:#fafcff}
.md-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.md-body img{border-radius:var(--radius-sm);border:1px solid var(--line)}

.docs-pager{display:flex;justify-content:space-between;gap:16px;margin-top:40px;
  padding-top:24px;border-top:1px solid var(--line)}
.docs-pager a{display:flex;flex-direction:column;gap:3px;padding:14px 18px;border-radius:var(--radius-sm);
  border:1px solid var(--line);max-width:48%;color:var(--ink);transition:.15s}
.docs-pager a:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.docs-pager-next{text-align:right;margin-left:auto}
.docs-pager strong{color:var(--ink);font-size:1rem}

@media (max-width:820px){
  .docs-layout{grid-template-columns:1fr;gap:20px}
  .docs-side{position:static;top:auto}
  .docs-side-nav{flex-direction:row;flex-wrap:wrap}
  .docs-main{padding:28px 22px}
}