/* roulang page: index */
:root{
  --bg:#060B14;
  --surface:#0A1424;
  --glass:rgba(16,30,52,.55);
  --card:rgba(16,30,52,.42);
  --line:rgba(122,178,255,.16);
  --line-strong:rgba(122,178,255,.30);
  --split:rgba(122,178,255,.14);
  --primary:#3D6BFF;
  --glow:#24E0D0;
  --amber:#FFB020;
  --text:#E8EFF8;
  --muted:#93A6BF;
  --radius:18px;
  --radius-sm:8px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(122,178,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,178,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
::selection{background:rgba(36,224,208,.28);color:#fff}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 侧栏 App Shell ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:22px 16px;
  background:linear-gradient(180deg,#0A1424 0%,#060B14 100%);
  border-right:1px solid var(--split);
  z-index:60;
}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 20px;border-bottom:1px solid var(--split)}
.logo-mark{
  position:relative;
  width:34px;height:34px;flex:0 0 34px;
  border-radius:11px;
  background:linear-gradient(135deg,#24E0D0,#3D6BFF);
  box-shadow:0 0 18px rgba(36,224,208,.45);
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;background:#060B14;
}
.logo-mark::before{
  content:"";position:absolute;inset:13px;border-radius:2px;background:#24E0D0;z-index:2;
}
.brand-text{min-width:0}
.brand-name{display:block;font-size:16px;font-weight:700;line-height:1.3;color:var(--text)}
.brand-sub{display:block;font-size:11px;line-height:1.5;color:var(--muted);letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.side-nav a .nav-dot{
  width:6px;height:6px;border-radius:2px;background:rgba(122,178,255,.45);flex:0 0 6px;
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.side-nav a:hover{background:rgba(36,224,208,.07);color:var(--text)}
.side-nav a:hover .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.6)}
.side-nav a.is-active{color:#fff;background:rgba(61,107,255,.14)}
.side-nav a.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--glow);box-shadow:0 0 12px rgba(36,224,208,.75);
}
.side-nav a.is-active .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.7)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.side-note{font-size:11.5px;line-height:1.6;color:rgba(147,166,191,.75);padding:0 8px}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 14px;border-radius:999px;
  font-size:14px;font-weight:700;color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 26px rgba(36,224,208,.28);
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
  text-align:center;
}
.side-cta:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.side-cta:active{transform:translateY(1px)}
.side-cta:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}

/* ============ 移动顶栏 & 抽屉 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  height:56px;align-items:center;gap:12px;
  padding:0 16px;
  background:rgba(6,11,20,.92);
  border-bottom:1px solid var(--split);
  backdrop-filter:blur(10px);
}
.topbar .brand{padding:0;border:0;gap:9px;flex:1;min-width:0}
.topbar .logo-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.topbar .logo-mark::after{inset:7px}
.topbar .logo-mark::before{inset:11px}
.topbar .brand-name{font-size:14px}
.topbar .brand-sub{font-size:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(16,30,52,.6);color:var(--text);
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.icon-btn:hover{border-color:rgba(36,224,208,.5);color:var(--glow)}
.icon-btn:focus-visible{outline:2px solid #24E0D0;outline-offset:2px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:currentColor;margin:3px auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:90;
  display:flex;flex-direction:column;gap:6px;padding:20px 18px;
  background:linear-gradient(180deg,#0A1424,#060B14);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .24s ease-out;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--split);margin-bottom:10px}
.drawer-title{font-size:14px;font-weight:700;color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;
  padding:12px;border-radius:12px;font-size:15px;color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(61,107,255,.14);color:#fff}
.drawer-dl{display:flex;flex-direction:column;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--split)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.66);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 主内容 ============ */
.main{position:relative;z-index:1;margin-left:var(--sidebar-w);min-width:0}
section{position:relative;padding:72px 0}
.band{
  background:linear-gradient(180deg,rgba(10,20,36,.85),rgba(6,11,20,.2));
  border-top:1px solid var(--split);
  border-bottom:1px solid var(--split);
}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  min-width:0;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  min-width:0;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.30),0 16px 38px rgba(0,0,0,.42)}

/* 板块标题 */
.sec-head{margin-bottom:34px;max-width:820px}
.sec-title{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.sec-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:1.5px;color:var(--glow);
  border-left:3px solid var(--glow);
  padding-left:10px;line-height:1.2;
}
.sec-title h2{font-size:28px;line-height:1.35}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.9}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:normal;text-align:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.btn-primary{
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  color:#04121A;
  box-shadow:0 8px 26px rgba(36,224,208,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.btn-ghost{
  background:rgba(16,30,52,.55);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:rgba(36,224,208,.55);color:var(--glow);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-sm);
  font-size:12px;line-height:1.6;color:#8FE9E0;
  background:rgba(36,224,208,.10);
  border:1px solid rgba(36,224,208,.24);
  white-space:nowrap;
}
.tag-amber{color:#FFD27A;background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.26)}
.tag-blue{color:#A8BEFF;background:rgba(61,107,255,.12);border-color:rgba(61,107,255,.28)}

/* ============ Hero Bento ============ */
.hero{padding:56px 0 64px;overflow:hidden}
.hero::after{
  content:"";position:absolute;top:-160px;left:-120px;width:640px;height:640px;
  background:radial-gradient(circle,rgba(61,107,255,.20),transparent 62%);
  pointer-events:none;z-index:0;
}
.bento{
  position:relative;z-index:1;
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  align-items:stretch;
}
.bento-main{grid-column:span 2;grid-row:span 2;padding:34px 32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.6px;color:var(--glow);
  font-family:var(--mono);
  padding:5px 12px;border-radius:var(--radius-sm);
  background:rgba(36,224,208,.08);
  border:1px solid rgba(36,224,208,.22);
}
.bento-main h1{
  margin:18px 0 12px;
  font-size:clamp(27px,3.1vw,42px);
  line-height:1.28;
  letter-spacing:-.5px;
}
.hero-sub{font-size:17px;color:#BFD0E6;font-weight:600;margin-bottom:14px}
.hero-lead{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;padding-top:16px;border-top:1px solid var(--split)}
.bento-side{padding:24px 22px;display:flex;flex-direction:column;gap:12px}
.side-title{font-size:15px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.side-title .dot{width:7px;height:7px;border-radius:2px;background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.7)}
.mini-steps{display:flex;flex-direction:column;gap:10px}
.mini-steps li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);line-height:1.7}
.mini-steps .num{
  flex:0 0 22px;width:22px;height:22px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:11.5px;color:#04121A;
  background:linear-gradient(135deg,#24E0D0,#3D6BFF);
  margin-top:3px;
}
.verify-visual{display:flex;align-items:center;gap:14px}
.verify-visual svg{flex:0 0 52px;width:52px;height:52px}
.verify-list{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted)}
.verify-list span{display:flex;align-items:center;gap:7px}
.verify-list span::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--glow);flex:0 0 5px;
}
.bento-strip{
  grid-column:span 3;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;flex-wrap:wrap;
}
.strip-text{font-size:14px;color:var(--muted);min-width:0}
.strip-text strong{color:var(--text)}
.strip-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ============ 指标看板 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.metric{padding:24px 22px}
.metric .m-label{font-size:13px;color:var(--muted);letter-spacing:.5px}
.metric .m-value{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:38px;line-height:1.1;font-weight:700;color:#fff;margin:8px 0 4px;
}
.metric .m-value em{font-style:normal;font-size:15px;color:var(--glow);margin-left:4px}
.metric .m-desc{font-size:13px;color:var(--muted);line-height:1.7}

/* ============ 下载区 ============ */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.dl-card{padding:26px 24px;display:flex;flex-direction:column;gap:14px}
.dl-icon{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(36,224,208,.10);
  border:1px solid rgba(36,224,208,.24);
  color:var(--glow);
}
.dl-icon svg{width:24px;height:24px}
.dl-name{font-size:17px;font-weight:700;color:var(--text)}
.dl-note{font-size:12.5px;color:rgba(147,166,191,.85);line-height:1.7;margin-top:auto}

/* ============ 服务矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.matrix-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.matrix-card:nth-child(2){margin-top:26px}
.matrix-card:nth-child(4){margin-top:26px}
.matrix-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12.5px;color:var(--glow);letter-spacing:1.4px;
  border-left:3px solid var(--glow);padding-left:9px;
}
.matrix-card h3{font-size:19px;line-height:1.45}
.matrix-card p{font-size:14px;color:var(--muted);line-height:1.85;margin:0}
.matrix-link{margin-top:auto;font-size:13.5px;color:var(--glow);display:inline-flex;align-items:center;gap:6px}
.matrix-link:hover{color:#8FE9E0;text-decoration:underline}

/* ============ 对比矩阵 ============ */
.compare{
  display:grid;
  grid-template-columns:180px repeat(3,minmax(0,1fr));
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--card);
}
.compare-cell{
  padding:16px 18px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.8;
  border-right:1px solid var(--split);
  border-bottom:1px solid var(--split);
  min-width:0;
}
.compare-cell:last-child{border-right:0}
.compare-head{
  font-size:14px;font-weight:700;color:#fff;
  background:rgba(61,107,255,.14);
  letter-spacing:.3px;
}
.compare-corner{background:rgba(61,107,255,.20);color:var(--glow);font-family:var(--mono);font-size:12.5px}
.compare-row-label{
  font-weight:600;color:#CFE0F5;
  background:rgba(36,224,208,.07);
  border-left:3px solid rgba(36,224,208,.5);
}

/* ============ 里程碑 ============ */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;position:relative;padding-top:8px}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:19px;height:1px;
  background:linear-gradient(90deg,rgba(36,224,208,.55),rgba(61,107,255,.16));
}
.tl-node{position:relative;padding:0 6px 0 0;min-width:0}
.tl-dot{
  position:relative;z-index:1;
  width:12px;height:12px;border-radius:50%;
  background:#060B14;border:2px solid var(--glow);
  box-shadow:0 0 14px rgba(36,224,208,.65);
  margin-bottom:16px;
}
.tl-step{font-family:var(--mono);font-size:11.5px;color:var(--glow);letter-spacing:1px;display:block;margin-bottom:4px}
.tl-node h3{font-size:15.5px;margin-bottom:6px;line-height:1.5}
.tl-node p{font-size:13px;color:var(--muted);line-height:1.75;margin:0}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.news-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:
    radial-gradient(circle at 78% 18%,rgba(36,224,208,.34),transparent 58%),
    linear-gradient(135deg,rgba(61,107,255,.45),rgba(10,20,36,.9));
  border-bottom:1px solid var(--line);
  display:flex;align-items:flex-end;justify-content:flex-start;
  padding:14px;
}
.news-thumb-idx{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13px;color:rgba(232,239,248,.78);letter-spacing:1.6px;
}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;min-width:0}
.news-body h3{font-size:16.5px;line-height:1.55;min-width:0}
.news-body h3 a{transition:color .18s ease-out}
.news-body h3 a:hover{color:var(--glow)}
.news-body p{
  font-size:13.5px;color:var(--muted);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:12px;border-top:1px solid var(--split);
  font-size:12.5px;color:rgba(147,166,191,.85);
}
.news-meta time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.news-more{color:var(--glow);font-size:13px}
.news-more:hover{text-decoration:underline;color:#8FE9E0}
.empty-state{
  grid-column:1/-1;
  padding:44px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  color:var(--muted);font-size:14.5px;
}

/* ============ 核验清单 ============ */
.verify-block{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;padding:32px}
.verify-block h2{font-size:24px;line-height:1.45;margin-bottom:14px}
.verify-block .lead{font-size:14.5px;color:var(--muted);line-height:1.9;margin:0}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:14px;
  background:rgba(10,20,36,.62);
  border:1px solid var(--split);
  font-size:14px;color:#CFE0F5;line-height:1.75;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.check-list li:hover{border-color:rgba(36,224,208,.36);background:rgba(16,30,52,.72)}
.check-icon{
  flex:0 0 20px;width:20px;height:20px;border-radius:6px;
  border:1px solid rgba(36,224,208,.55);
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.check-icon::after{
  content:"";width:8px;height:4px;
  border-left:2px solid var(--glow);
  border-bottom:2px solid var(--glow);
  transform:rotate(-45deg) translateY(-1px);
}

/* ============ 快速解答 ============ */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.qa-card{position:relative;padding:24px 24px 22px}
.qa-num{
  position:absolute;top:18px;right:20px;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12px;color:rgba(122,178,255,.55);letter-spacing:1.4px;
}
.qa-card h3{font-size:16px;line-height:1.5;margin-bottom:10px;padding-right:32px}
.qa-card p{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(16,30,52,.45);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item[open]{border-color:rgba(36,224,208,.45);box-shadow:0 0 0 1px rgba(36,224,208,.22),0 12px 30px rgba(0,0,0,.32)}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:15.5px;font-weight:600;color:var(--text);
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(122,178,255,.32);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--glow);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:9px;height:1.6px}
.faq-icon::after{width:1.6px;height:9px}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(36,224,208,.6)}
.faq-body{padding:0 20px 20px;font-size:14px;color:var(--muted);line-height:1.9}
.faq-body p{margin:0}

/* ============ 表单 ============ */
.lead-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.lead-intro h2{font-size:25px;line-height:1.45;margin-bottom:14px}
.lead-intro .lead{color:var(--muted);font-size:14.5px;line-height:1.9;margin-bottom:20px}
.lead-points{display:flex;flex-direction:column;gap:12px}
.lead-points li{display:flex;gap:10px;font-size:13.5px;color:#BFD0E6;line-height:1.75}
.lead-points li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 8px rgba(36,224,208,.7);margin-top:9px;
}
.lead-form{padding:28px 26px;display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;min-width:0}
.field label{font-size:13px;color:#BFD0E6;letter-spacing:.3px}
.field input,.field select,.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(6,11,20,.72);
  color:var(--text);
  font-size:14.5px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(147,166,191,.6)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(36,224,208,.65);
  box-shadow:0 0 0 3px rgba(36,224,208,.14);
  background:rgba(10,20,36,.9);
}
.field textarea{min-height:96px;resize:vertical}
.form-tip{font-size:12px;color:rgba(147,166,191,.8);line-height:1.7;margin:0}

/* ============ 场景矩阵 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.scene-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:18px 18px;border-radius:14px;
  border:1px solid var(--split);
  background:rgba(16,30,52,.42);
  transition:border-color .18s ease-out,transform .18s ease-out,background .18s ease-out;
}
.scene-item:hover{border-color:rgba(36,224,208,.38);transform:translateY(-2px);background:rgba(16,30,52,.66)}
.scene-idx{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12px;color:var(--glow);letter-spacing:1px;
  padding:3px 8px;border-radius:7px;
  background:rgba(36,224,208,.10);
  border:1px solid rgba(36,224,208,.22);
  flex:0 0 auto;
}
.scene-item h3{font-size:15px;line-height:1.5;margin-bottom:5px}
.scene-item p{font-size:12.5px;color:var(--muted);line-height:1.7;margin:0}

/* ============ 术语 ============ */
.terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.term-item{padding:18px 20px}
.term-item dt{
  font-size:15px;font-weight:700;color:var(--glow);margin-bottom:6px;letter-spacing:.3px;
}
.term-item dd{margin:0;font-size:13.5px;color:var(--muted);line-height:1.8}

/* ============ 风险提示条 ============ */
.risk-strip{
  display:flex;gap:16px;
  padding:24px 26px;
  border-radius:var(--radius);
  border:1px solid rgba(255,176,32,.28);
  border-left:4px solid var(--amber);
  background:linear-gradient(90deg,rgba(255,176,32,.10),rgba(16,30,52,.5));
}
.risk-strip h3{font-size:16.5px;color:#FFD27A;margin-bottom:8px}
.risk-strip p{font-size:13.5px;color:#C9B58C;line-height:1.85;margin:0 0 6px}
.risk-strip p:last-child{margin-bottom:0}

/* ============ 分类入口 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.entry-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(16,30,52,.72),rgba(10,20,36,.5));
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.entry-card:hover{border-color:rgba(36,224,208,.42);transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.22),0 16px 34px rgba(0,0,0,.4)}
.entry-card h3{font-size:17px;line-height:1.5;display:flex;align-items:center;justify-content:space-between;gap:10px}
.entry-card h3 .arw{color:var(--glow);font-family:var(--mono);font-size:15px}
.entry-card p{font-size:13.5px;color:var(--muted);line-height:1.8;margin:0}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  margin-left:var(--sidebar-w);
  padding:48px 0 32px;
  border-top:1px solid var(--split);
  background:linear-gradient(180deg,rgba(10,20,36,.9),rgba(6,11,20,1));
}
.footer-top{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:32px;padding-bottom:32px;border-bottom:1px solid var(--split)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:420px;margin:0}
.footer-col h4{font-size:14px;margin-bottom:14px;color:var(--text);letter-spacing:.4px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .18s ease-out}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{padding-top:22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:12.5px;color:rgba(147,166,191,.8)}
.footer-bottom span{min-width:0}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .sidebar{width:80px;padding:22px 10px}
  .main{margin-left:80px}
  .site-footer{margin-left:80px}
  .brand-text,.side-nav a .nav-text,.side-cta,.side-note{display:none}
  .brand{justify-content:center;padding:6px 0 18px}
  .side-nav a{justify-content:center;padding:12px 0}
  .side-nav a .nav-dot{width:8px;height:8px;flex:0 0 8px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0}
  .site-footer{margin-left:0}
  section{padding:56px 0}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-main{grid-column:span 2;grid-row:auto;padding:28px 24px}
  .bento-strip{grid-column:span 2}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .compare{grid-template-columns:150px repeat(3,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
  .timeline::before{display:none}
  .verify-block{grid-template-columns:1fr;gap:22px}
  .lead-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .sec-title h2{font-size:22px}
  .compare{grid-template-columns:1fr;border-radius:16px}
  .compare-head{display:none}
  .compare-cell{border-right:0;padding:14px 16px}
  .compare-cell[data-col]::before{
    content:attr(data-col);
    display:block;
    font-family:var(--mono);
    font-size:11.5px;letter-spacing:1px;color:rgba(122,178,255,.7);
    margin-bottom:4px;
  }
  .compare-row-label{font-size:13.5px;letter-spacing:.4px}
  .matrix{grid-template-columns:1fr}
  .matrix-card:nth-child(2),.matrix-card:nth-child(4){margin-top:0}
  .dl-grid{grid-template-columns:1fr}
  .qa-grid{grid-template-columns:1fr}
  .terms{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;gap:0}
  .tl-node{padding:0 0 22px 30px}
  .tl-dot{position:absolute;left:0;top:6px;margin-bottom:0}
  .timeline::before{
    display:block;left:5px;right:auto;top:8px;bottom:26px;width:1px;height:auto;
    background:linear-gradient(180deg,rgba(36,224,208,.55),rgba(61,107,255,.14));
  }
  .footer-top{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  section{padding:44px 0}
  .hero{padding:36px 0 44px}
  .bento{grid-template-columns:1fr;gap:16px}
  .bento-main{grid-column:span 1;padding:24px 18px}
  .bento-strip{grid-column:span 1;padding:16px 18px}
  .metrics{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .verify-block{padding:24px 18px}
  .card,.glass{border-radius:16px}
  .matrix-card,.dl-card,.qa-card{padding:20px 18px}
  .hero-actions .btn,.strip-actions .btn{width:100%}
  .btn{width:100%}
  .strip-actions{width:100%}
  .faq-item summary{padding:16px;font-size:14.5px}
  .faq-body{padding:0 16px 18px}
  .lead-form{padding:22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: article */
:root{
  --bg:#060B14;
  --surface:#0A1424;
  --glass:rgba(16,30,52,.55);
  --card:rgba(16,30,52,.42);
  --line:rgba(122,178,255,.16);
  --line-strong:rgba(122,178,255,.30);
  --split:rgba(122,178,255,.14);
  --primary:#3D6BFF;
  --glow:#24E0D0;
  --amber:#FFB020;
  --text:#E8EFF8;
  --muted:#93A6BF;
  --radius:18px;
  --radius-sm:8px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sidebar-w:240px;
}
html{-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(122,178,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,178,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
p{margin:0 0 16px}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 左侧 App Shell ============ */
.shell{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;
  padding:20px 16px;
  background:linear-gradient(180deg,#0A1424,#060B14);
  border-right:1px solid var(--split);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 20px;border-bottom:1px solid var(--split)}
.logo-mark{
  position:relative;
  width:34px;height:34px;flex:0 0 34px;
  border-radius:11px;
  background:linear-gradient(135deg,#24E0D0,#3D6BFF);
  box-shadow:0 0 18px rgba(36,224,208,.45);
}
.logo-mark::after{content:"";position:absolute;inset:9px;border-radius:4px;background:#060B14}
.logo-mark::before{content:"";position:absolute;inset:13px;border-radius:2px;background:#24E0D0;z-index:2}
.brand-text{min-width:0}
.brand-name{display:block;font-size:16px;font-weight:700;line-height:1.3;color:var(--text)}
.brand-sub{display:block;font-size:11px;line-height:1.5;color:var(--muted);letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.side-nav a .nav-dot{
  width:6px;height:6px;border-radius:2px;background:rgba(122,178,255,.45);flex:0 0 6px;
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.side-nav a:hover{background:rgba(36,224,208,.07);color:var(--text)}
.side-nav a:hover .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.6)}
.side-nav a.is-active{color:#fff;background:rgba(61,107,255,.14)}
.side-nav a.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--glow);box-shadow:0 0 12px rgba(36,224,208,.75);
}
.side-nav a.is-active .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.7)}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;margin-top:auto;padding:12px 14px;border-radius:999px;
  font-size:14px;font-weight:700;color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 26px rgba(36,224,208,.28);
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
  text-align:center;
}
.side-cta:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.side-cta:active{transform:translateY(1px)}
.side-cta:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.shell-note{
  margin-top:14px;padding:12px;border-radius:12px;
  border:1px solid var(--split);
  font-size:12px;line-height:1.7;color:var(--muted);
  background:rgba(255,176,32,.05);
}

/* ============ 移动顶栏 & 抽屉 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  height:56px;align-items:center;gap:12px;
  padding:0 16px;
  background:rgba(6,11,20,.92);
  border-bottom:1px solid var(--split);
  backdrop-filter:blur(10px);
}
.topbar .brand{padding:0;border:0;gap:9px;flex:1;min-width:0}
.topbar .logo-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.topbar .logo-mark::after{inset:7px}
.topbar .logo-mark::before{inset:11px}
.topbar .brand-name{font-size:14px}
.topbar .brand-sub{font-size:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(16,30,52,.6);color:var(--text);
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.icon-btn:hover{border-color:rgba(36,224,208,.5);color:var(--glow)}
.icon-btn:focus-visible{outline:2px solid #24E0D0;outline-offset:2px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:90;
  display:flex;flex-direction:column;gap:6px;padding:20px 18px;
  background:linear-gradient(180deg,#0A1424,#060B14);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .24s ease-out;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--split);margin-bottom:10px}
.drawer-title{font-size:14px;font-weight:700;color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;
  padding:12px;border-radius:12px;font-size:15px;color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(61,107,255,.14);color:#fff}
.drawer-dl{display:flex;flex-direction:column;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--split)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.66);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 主内容 ============ */
.main{position:relative;z-index:1;margin-left:var(--sidebar-w);min-width:0}
section{position:relative;padding:72px 0}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  min-width:0;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.30),0 16px 38px rgba(0,0,0,.42)}

/* ============ 文章头 ============ */
.article-head{
  position:relative;
  padding:52px 0 40px;
  border-bottom:1px solid var(--split);
  overflow:hidden;
}
.article-head::before{
  content:"";
  position:absolute;top:-120px;right:-80px;width:520px;height:320px;
  background:linear-gradient(120deg,rgba(36,224,208,.16),rgba(61,107,255,.10),transparent 70%);
  transform:skewX(-18deg);
  filter:blur(2px);
  pointer-events:none;
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.crumbs a{color:var(--muted);transition:color .18s ease-out}
.crumbs a:hover{color:var(--glow)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--text);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:8px;
  font-size:12.5px;letter-spacing:.3px;
  color:var(--glow);
  border:1px solid rgba(36,224,208,.32);
  background:rgba(36,224,208,.08);
}
.tag.is-plain{color:var(--muted);border-color:var(--line);background:rgba(122,178,255,.06)}
.article-head h1{
  margin:0 0 18px;
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.5px;
  max-width:900px;
  overflow-wrap:break-word;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  font-size:13px;color:var(--muted);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-row .meta-item strong{color:var(--text);font-weight:600}
.dot-glow{
  width:6px;height:6px;border-radius:50%;background:var(--glow);
  box-shadow:0 0 10px rgba(36,224,208,.8);
  flex:0 0 6px;
}
.head-line{
  margin-top:26px;height:1px;width:100%;
  background:linear-gradient(90deg,rgba(36,224,208,.6),rgba(61,107,255,.35),transparent);
}

/* ============ 布局：正文 + 侧卡 ============ */
.article-section{padding:56px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 220px;
  gap:32px;
  align-items:start;
}
.article-col{min-width:0}

/* 要点摘要 */
.key-points{
  padding:24px 24px 8px;
  margin-bottom:32px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
}
.key-points h2{
  display:flex;align-items:center;gap:10px;
  margin:0 0 16px;font-size:17px;letter-spacing:.3px;
}
.key-points h2 .bar{
  width:3px;height:16px;border-radius:3px;background:var(--glow);
  box-shadow:0 0 10px rgba(36,224,208,.7);
}
.key-points ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.key-points li{
  position:relative;padding-left:26px;font-size:14.5px;line-height:1.8;color:var(--muted);
}
.key-points li::before{
  content:"";
  position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:4px;
  border:1px solid rgba(36,224,208,.5);
  background:rgba(36,224,208,.12);
}
.key-points li::after{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--glow);
}
.key-points li b{color:var(--text);font-weight:600}

/* 正文 */
.article-body{
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  overflow-wrap:break-word;
  word-break:normal;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px;color:#DCE6F3}
.article-body h2{
  position:relative;
  margin:38px 0 16px;
  padding-left:14px;
  font-size:22px;
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#24E0D0,#3D6BFF);
  box-shadow:0 0 12px rgba(36,224,208,.55);
}
.article-body h3{
  margin:26px 0 12px;
  font-size:18px;
  line-height:1.6;
  font-weight:700;
  color:#F2F7FF;
}
.article-body h4{margin:22px 0 10px;font-size:16px;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;color:#DCE6F3}
.article-body li{margin:6px 0;line-height:1.8}
.article-body a{color:var(--glow);border-bottom:1px solid rgba(36,224,208,.35);transition:color .18s ease-out,border-color .18s ease-out}
.article-body a:hover{color:#7BF3E8;border-color:#7BF3E8}
.article-body img{border-radius:12px;margin:18px 0;border:1px solid var(--line);height:auto}
.article-body blockquote{
  margin:22px 0;
  padding:16px 18px;
  border-left:3px solid var(--glow);
  border-radius:0 12px 12px 0;
  background:rgba(36,224,208,.06);
  color:#D7E4F2;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  font-family:var(--mono);font-size:14px;
  padding:2px 6px;border-radius:6px;
  background:rgba(122,178,255,.12);color:#BFD4FF;
}
.article-body pre{
  margin:20px 0;padding:16px;border-radius:12px;
  background:rgba(6,11,20,.8);border:1px solid var(--line);
  overflow-x:auto;
}
.article-body pre code{background:transparent;padding:0;color:#CFE0F5}
.article-body hr{border:0;height:1px;background:var(--split);margin:28px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:rgba(61,107,255,.12);color:var(--text)}

/* 空态 */
.article-empty{
  padding:40px 24px;
  text-align:center;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.article-empty h2{margin:0 0 10px;font-size:20px}
.article-empty p{color:var(--muted);margin-bottom:22px}

/* 右侧粘性卡 */
.side-panel{display:flex;flex-direction:column;gap:16px;position:sticky;top:24px;min-width:0}
.side-card{
  padding:18px 16px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  min-width:0;
}
.side-card h3{
  display:flex;align-items:center;gap:8px;
  margin:0 0 12px;font-size:14px;letter-spacing:.4px;color:var(--text);
}
.side-card h3 .num{
  font-family:var(--mono);font-size:12px;color:var(--glow);
  padding:1px 6px;border-radius:6px;border:1px solid rgba(36,224,208,.3);
}
.side-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.side-list li{
  position:relative;padding-left:16px;
  font-size:13px;line-height:1.7;color:var(--muted);
}
.side-list li::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:2px;
  background:rgba(122,178,255,.6);
}
.side-card .side-btn{
  display:flex;align-items:center;justify-content:center;
  min-height:42px;margin-top:14px;padding:10px 14px;
  border-radius:999px;font-size:13.5px;font-weight:700;color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 22px rgba(36,224,208,.24);
  transition:filter .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.side-card .side-btn:hover{filter:brightness(1.08);box-shadow:0 10px 28px rgba(36,224,208,.4);transform:translateY(-2px)}
.side-card .side-btn:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}

/* 风险提示条 */
.risk-note{
  display:flex;gap:14px;
  margin-top:34px;padding:18px 20px;
  border:1px solid rgba(255,176,32,.34);
  border-left:3px solid var(--amber);
  border-radius:var(--radius-sm);
  background:rgba(255,176,32,.07);
  min-width:0;
}
.risk-note .r-title{
  font-size:14px;font-weight:700;color:var(--amber);margin:0 0 4px;
}
.risk-note p{margin:0;font-size:13.5px;line-height:1.8;color:#E4D7BE}

/* 通用区块标题 */
.sec-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:28px}
.sec-head .idx{
  font-family:var(--mono);font-size:13px;letter-spacing:1px;color:var(--glow);
  padding-top:6px;flex:0 0 auto;
}
.sec-head .bar{
  width:3px;height:30px;border-radius:3px;flex:0 0 3px;
  background:linear-gradient(180deg,#24E0D0,#3D6BFF);
  box-shadow:0 0 12px rgba(36,224,208,.5);
}
.sec-head h2{margin:0 0 6px;font-size:26px;line-height:1.4;letter-spacing:-.3px}
.sec-head p{margin:0;font-size:14px;color:var(--muted)}

/* 核验清单 */
.verify-wrap{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
}
.verify-item{
  display:flex;gap:14px;
  padding:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  min-width:0;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.verify-item:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.3),0 16px 34px rgba(0,0,0,.4)}
.verify-item .chk{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:8px;
  border:1px solid rgba(36,224,208,.5);background:rgba(36,224,208,.1);
}
.verify-item .chk::after{
  content:"";position:absolute;left:8px;top:5px;width:7px;height:12px;
  border-right:2px solid var(--glow);border-bottom:2px solid var(--glow);
  transform:rotate(38deg);
}
.verify-item h3{margin:0 0 6px;font-size:15px;line-height:1.5}
.verify-item p{margin:0;font-size:13.5px;line-height:1.75;color:var(--muted)}

/* 下载区 */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.dl-card{
  display:flex;flex-direction:column;gap:12px;
  padding:22px 20px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(10px);
  min-width:0;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.dl-card:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.3),0 16px 36px rgba(0,0,0,.42)}
.dl-top{display:flex;align-items:center;gap:12px}
.dl-ico{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,#24E0D0,#3D6BFF);
  box-shadow:0 6px 18px rgba(36,224,208,.3);
}
.dl-name{font-size:16px;font-weight:700}
.dl-sub{font-size:12px;color:var(--muted)}
.dl-card p{margin:0;font-size:13px;line-height:1.7;color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:999px;
  font-size:14.5px;font-weight:700;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  border:1px solid transparent;
  text-align:center;
}
.btn-primary{
  color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 26px rgba(36,224,208,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.btn-ghost{
  color:var(--text);
  background:rgba(16,30,52,.5);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:rgba(36,224,208,.55);color:var(--glow);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.dl-card .btn{margin-top:auto}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:860px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item[open]{border-color:rgba(36,224,208,.45);box-shadow:0 0 0 1px rgba(36,224,208,.18)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;
  font-size:15.5px;font-weight:600;
  cursor:pointer;list-style:none;
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--glow)}
.faq-item summary:focus-visible{outline:2px solid #24E0D0;outline-offset:-2px}
.faq-item summary .plus{
  position:relative;flex:0 0 18px;width:18px;height:18px;
  transition:transform .22s ease-out;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--glow);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-item summary .plus::after{left:8px;top:0;width:2px;height:18px;transition:opacity .22s ease-out,transform .22s ease-out}
.faq-item[open] summary .plus{transform:rotate(90deg)}
.faq-item[open] summary .plus::after{opacity:0;transform:scaleY(0)}
.faq-body{padding:0 18px 18px;font-size:14px;line-height:1.85;color:var(--muted)}
.faq-body p{margin:0 0 10px}
.faq-body p:last-child{margin-bottom:0}

/* 返回与导航 */
.back-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-top:8px;
}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;
  min-height:42px;padding:10px 20px;border-radius:999px;
  font-size:14px;color:var(--text);
  border:1px solid var(--line);
  background:rgba(16,30,52,.5);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.pill-link:hover{border-color:rgba(36,224,208,.55);color:var(--glow);transform:translateY(-2px)}
.pill-link:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  border-top:1px solid var(--split);
  background:rgba(10,20,36,.55);
  padding:56px 0 30px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:32px;
  padding-bottom:28px;
  border-bottom:1px solid var(--split);
}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-desc{margin:14px 0 0;font-size:13.5px;line-height:1.8;color:var(--muted);max-width:420px}
.footer-col h4{margin:0 0 14px;font-size:14px;letter-spacing:.4px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .18s ease-out}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;
  font-size:12.5px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 200px;gap:24px}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side-panel{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
}
@media (max-width:1023px){
  .shell{display:none}
  .topbar{display:flex}
  .main{margin-left:0}
  section{padding:52px 0}
  .article-section{padding:44px 0 56px}
  .article-head{padding:38px 0 30px}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .site-container{padding:0 18px}
  .verify-wrap{grid-template-columns:minmax(0,1fr)}
  .side-panel{grid-template-columns:minmax(0,1fr)}
  .sec-head h2{font-size:22px}
  .article-body h2{font-size:19px}
  .article-body h3{font-size:16.5px}
  .key-points{padding:20px 18px 6px}
  .footer-top{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:519px){
  section{padding:42px 0}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .article-head h1{font-size:24px}
  .article-body{font-size:15.5px}
  .btn{width:100%}
  .back-bar{gap:10px}
  .pill-link{flex:1 1 100%;justify-content:center}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg:#060B14;
  --surface:#0A1424;
  --glass:rgba(16,30,52,.55);
  --card:rgba(16,30,52,.42);
  --line:rgba(122,178,255,.16);
  --line-strong:rgba(122,178,255,.30);
  --split:rgba(122,178,255,.14);
  --primary:#3D6BFF;
  --glow:#24E0D0;
  --amber:#FFB020;
  --text:#E8EFF8;
  --muted:#93A6BF;
  --radius:18px;
  --radius-sm:8px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(122,178,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,178,255,.05) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 左侧栏 ============ */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  padding:22px 16px 20px;
  background:linear-gradient(180deg,#0A1424 0%,#070E1B 100%);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 20px;border-bottom:1px solid var(--split)}
.logo-mark{
  position:relative;
  width:34px;height:34px;flex:0 0 34px;
  border-radius:11px;
  background:linear-gradient(135deg,#24E0D0,#3D6BFF);
  box-shadow:0 0 18px rgba(36,224,208,.45);
}
.logo-mark::after{content:"";position:absolute;inset:9px;border-radius:4px;background:#060B14}
.logo-mark::before{content:"";position:absolute;inset:13px;border-radius:2px;background:#24E0D0;z-index:2}
.brand-text{min-width:0}
.brand-name{display:block;font-size:16px;font-weight:700;line-height:1.3;color:var(--text)}
.brand-sub{display:block;font-size:11px;line-height:1.5;color:var(--muted);letter-spacing:.4px}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.side-nav a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.side-nav a .nav-dot{
  width:6px;height:6px;border-radius:2px;background:rgba(122,178,255,.45);flex:0 0 6px;
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.side-nav a:hover{background:rgba(36,224,208,.07);color:var(--text)}
.side-nav a:hover .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.6)}
.side-nav a.is-active{color:#fff;background:rgba(61,107,255,.14)}
.side-nav a.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--glow);box-shadow:0 0 12px rgba(36,224,208,.75);
}
.side-nav a.is-active .nav-dot{background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.7)}
.side-nav a:focus-visible{outline:2px solid #24E0D0;outline-offset:2px}
.side-foot{margin-top:auto;padding-top:20px}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 14px;border-radius:999px;
  font-size:14px;font-weight:700;color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 26px rgba(36,224,208,.28);
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
  text-align:center;
}
.side-cta:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.side-cta:active{transform:translateY(1px)}
.side-cta:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}

/* ============ 移动顶栏与抽屉 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:70;
  height:56px;align-items:center;gap:12px;
  padding:0 16px;
  background:rgba(6,11,20,.92);
  border-bottom:1px solid var(--split);
  backdrop-filter:blur(10px);
}
.topbar .brand{padding:0;border:0;gap:9px;flex:1;min-width:0}
.topbar .logo-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.topbar .logo-mark::after{inset:7px}
.topbar .logo-mark::before{inset:11px}
.topbar .brand-name{font-size:14px}
.topbar .brand-sub{font-size:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(16,30,52,.6);color:var(--text);
  transition:border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.icon-btn:hover{border-color:rgba(36,224,208,.5);color:var(--glow)}
.icon-btn:focus-visible{outline:2px solid #24E0D0;outline-offset:2px}
.icon-btn svg{width:20px;height:20px;display:block}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;z-index:90;
  display:flex;flex-direction:column;gap:6px;padding:20px 18px;
  background:linear-gradient(180deg,#0A1424,#060B14);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);
  transition:transform .24s ease-out;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--split);margin-bottom:10px}
.drawer-title{font-size:14px;font-weight:700;color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;gap:10px;
  padding:12px;border-radius:12px;font-size:15px;color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(61,107,255,.14);color:#fff}
.drawer-dl{display:flex;flex-direction:column;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--split)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.66);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 主内容区 ============ */
.main{position:relative;z-index:1;margin-left:var(--sidebar-w);min-width:0}
section{position:relative;padding:72px 0}
.sec-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:30px}
.sec-num{
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  color:var(--glow);
  letter-spacing:1px;
  padding-left:12px;
  border-left:3px solid var(--glow);
  line-height:1.5;
  flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}
.sec-head h2{font-size:28px;letter-spacing:-.2px}
.sec-sub{margin-top:8px;font-size:14.5px;color:var(--muted);max-width:760px}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  min-width:0;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(36,224,208,.30),0 16px 38px rgba(0,0,0,.42)}

/* ============ 01 分类页头 ============ */
.cat-hero{
  padding:52px 0 44px;
  border-bottom:1px solid var(--split);
  background:linear-gradient(100deg,rgba(61,107,255,.18) 0%,rgba(36,224,208,.07) 42%,rgba(6,11,20,0) 72%);
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  top:-60px;right:-140px;
  width:420px;height:220px;
  background:linear-gradient(120deg,rgba(36,224,208,.20),rgba(61,107,255,0));
  transform:rotate(-18deg);
  filter:blur(24px);
  pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{transition:color .18s ease-out}
.crumb a:hover{color:var(--glow)}
.crumb .sep{color:rgba(147,166,191,.5)}
.crumb .now{color:var(--text)}
.cat-hero-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cat-hero h1{font-size:clamp(30px,3.6vw,40px);letter-spacing:-.5px}
.cat-hero .cat-desc{margin-top:12px;font-size:15.5px;color:var(--muted);max-width:620px}
.cat-badge{
  flex:0 0 auto;
  display:flex;flex-direction:column;align-items:flex-end;gap:6px;
  padding:14px 20px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:var(--glass);
  backdrop-filter:blur(8px);
}
.cat-badge .badge-num{font-family:var(--mono);font-size:24px;font-weight:700;color:var(--glow);font-variant-numeric:tabular-nums;line-height:1}
.cat-badge .badge-txt{font-size:12px;color:var(--muted);letter-spacing:1px}

/* ============ 02 概览 ============ */
.overview-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;min-width:0}
.overview-text{padding:30px 28px}
.overview-text p{font-size:15.5px;color:#C6D4E6;margin-bottom:14px}
.overview-text p:last-child{margin-bottom:0}
.overview-text strong{color:var(--glow);font-weight:600}
.check-card{padding:28px 26px;background:var(--glass);backdrop-filter:blur(8px)}
.check-card h3{font-size:18px;margin-bottom:6px}
.check-card .check-tip{font-size:13px;color:var(--muted);margin-bottom:18px}
.check-list li{
  position:relative;
  padding:11px 0 11px 30px;
  font-size:14.8px;
  color:#D3DFEE;
  border-bottom:1px dashed var(--split);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";
  position:absolute;left:2px;top:19px;
  width:6px;height:11px;
  border-right:2px solid var(--glow);
  border-bottom:2px solid var(--glow);
  transform:rotate(40deg);
}

/* ============ 03 分步 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step-card{padding:24px 20px;position:relative;overflow:hidden}
.step-card::after{
  content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,208,.16),rgba(36,224,208,0) 70%);
}
.step-no{font-family:var(--mono);font-size:13px;color:var(--glow);letter-spacing:1.5px;font-variant-numeric:tabular-nums}
.step-card h3{font-size:17px;margin:10px 0 8px}
.step-card p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 04 对照 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-card{padding:28px 26px;min-width:0}
.compare-card.is-alt{background:rgba(61,107,255,.10);border-color:var(--line-strong)}
.compare-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--split)}
.compare-top h3{font-size:18px}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:8px;
  font-size:12px;letter-spacing:.5px;
  color:var(--glow);
  background:rgba(36,224,208,.10);
  border:1px solid rgba(36,224,208,.28);
  white-space:nowrap;
}
.compare-row{display:grid;grid-template-columns:88px minmax(0,1fr);gap:14px;padding:12px 0;border-bottom:1px dashed var(--split)}
.compare-row:last-child{border-bottom:0}
.compare-row dt{font-size:13.5px;color:var(--muted)}
.compare-row dd{margin:0;font-size:14.5px;color:#D3DFEE}

/* ============ 05 误区 ============ */
.mistake-list{display:flex;flex-direction:column;gap:14px}
.mistake-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:18px;
  align-items:start;
  padding:20px 24px;
  border-radius:14px;
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--amber);
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.mistake-item:hover{transform:translateY(-2px);border-color:rgba(255,176,32,.42);border-left-color:var(--amber)}
.mistake-no{font-family:var(--mono);font-size:20px;color:var(--amber);font-variant-numeric:tabular-nums;line-height:1.5}
.mistake-item h3{font-size:16.5px;margin-bottom:6px}
.mistake-item p{font-size:14.5px;color:var(--muted)}

/* ============ 06 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{display:flex;flex-direction:column;padding:22px 22px 20px;min-width:0}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;font-size:12.5px;color:var(--muted)}
.news-title{font-size:17px;line-height:1.55;margin-bottom:10px}
.news-title a{transition:color .18s ease-out}
.news-title a:hover{color:var(--glow)}
.news-desc{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-more{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--glow);
  transition:gap .18s ease-out,color .18s ease-out;
}
.news-more:hover{gap:11px}
.empty-card{padding:44px 26px;text-align:center;color:var(--muted);font-size:15px}

/* ============ 07 FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--card);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item[open]{border-color:rgba(36,224,208,.35);box-shadow:0 0 0 1px rgba(36,224,208,.18)}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  font-size:16px;font-weight:600;
  cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--glow)}
.faq-item summary:focus-visible{outline:2px solid #24E0D0;outline-offset:-4px}
.faq-icon{
  flex:0 0 18px;width:18px;height:18px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--glow);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .2s ease-out}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-body{padding:0 22px 20px;font-size:14.8px;color:var(--muted);line-height:1.85}

/* ============ 08 下载 ============ */
.dl-section{padding-top:0}
.dl-panel{
  padding:34px 30px;
  border-radius:var(--radius);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(61,107,255,.16),rgba(10,20,36,.75) 60%);
  box-shadow:var(--shadow);
}
.dl-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.dl-head h2{font-size:22px}
.dl-head span{font-size:13px;color:var(--muted)}
.dl-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-card{
  display:flex;flex-direction:column;gap:12px;
  padding:20px;
  border-radius:14px;
  background:rgba(6,11,20,.55);
  border:1px solid var(--line);
  min-width:0;
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.dl-card:hover{border-color:rgba(36,224,208,.38);transform:translateY(-3px)}
.dl-name{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600}
.dl-dot{width:8px;height:8px;border-radius:3px;background:var(--glow);box-shadow:0 0 10px rgba(36,224,208,.7);flex:0 0 8px}
.dl-note{font-size:12.5px;color:var(--muted);line-height:1.7}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:11px 18px;border-radius:999px;
  font-size:14px;font-weight:700;
  transition:transform .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out,background .18s ease-out,border-color .18s ease-out;
  text-align:center;
}
.btn-glow{
  color:#04121A;
  background:linear-gradient(120deg,#24E0D0,#3D6BFF);
  box-shadow:0 8px 26px rgba(36,224,208,.26);
}
.btn-glow:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(36,224,208,.42);transform:translateY(-2px)}
.btn-glow:active{transform:translateY(1px)}
.btn-glow:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.btn-ghost{
  color:var(--text);
  background:rgba(16,30,52,.55);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:var(--glow);color:var(--glow);transform:translateY(-2px)}
.btn-ghost:focus-visible{outline:2px solid #24E0D0;outline-offset:3px}
.dl-foot{margin-top:18px;font-size:12.5px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  margin-left:var(--sidebar-w);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,20,36,.9),rgba(6,11,20,1));
  padding:52px 0 28px;
}
.footer-top{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px;min-width:0}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:420px}
.footer-col h4{font-size:14px;margin-bottom:14px;color:var(--text);letter-spacing:.5px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--muted);transition:color .18s ease-out,transform .18s ease-out}
.footer-links a:hover{color:var(--glow);transform:translateX(3px)}
.footer-bottom{
  margin-top:34px;padding-top:20px;
  border-top:1px solid var(--split);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sidebar-w:220px}
  .sec-head h2{font-size:25px}
}
@media (max-width:1023px){
  .app-sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0}
  .site-footer{margin-left:0}
  section{padding:56px 0}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .overview-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .footer-top > div:first-child{grid-column:1 / -1}
}
@media (max-width:767px){
  .site-container{padding:0 18px}
  section{padding:44px 0}
  .cat-hero{padding:36px 0 30px}
  .cat-hero-inner{flex-direction:column;align-items:flex-start;gap:18px}
  .cat-badge{flex-direction:row;align-items:center;gap:10px;padding:10px 14px}
  .cat-badge .badge-num{font-size:18px}
  .sec-head{gap:11px;margin-bottom:22px}
  .sec-head h2{font-size:22px}
  .sec-num{font-size:13px;padding-left:9px}
  .overview-text,.check-card,.compare-card{padding:22px 18px}
  .compare-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:76px minmax(0,1fr);gap:10px}
  .mistake-item{grid-template-columns:1fr;gap:6px;padding:18px}
  .news-grid{grid-template-columns:1fr}
  .dl-panel{padding:24px 18px}
  .dl-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .step-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:27px}
  .faq-item summary{padding:15px 16px;font-size:15px}
  .faq-body{padding:0 16px 18px}
  .btn{min-height:44px}
}