/* roulang page: index */
:root{
  --bg:#050a16;
  --bg-deep:#03060f;
  --bg-soft:#0a1428;
  --panel:rgba(16,30,58,.72);
  --panel-soft:rgba(12,23,46,.6);
  --glass:rgba(96,155,255,.07);
  --line:rgba(112,164,255,.16);
  --line-strong:rgba(112,178,255,.4);
  --text:#e9f1ff;
  --muted:#93a7c9;
  --muted-2:#7288ab;
  --brand:#3d78ff;
  --brand-2:#38e1ff;
  --accent:#68f0c2;
  --warn:#ffb35c;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 22px 55px rgba(2,8,24,.6);
  --glow:0 10px 30px rgba(52,124,255,.4);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(61,120,255,.26),transparent 62%),
    radial-gradient(900px 520px at 6% 8%,rgba(56,225,255,.13),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:-.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.site-container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
.site-container--narrow{max-width:960px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.btn-ghost{
  color:#c8daf8;
  border-color:var(--line-strong);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{color:#fff;border-color:rgba(120,200,255,.75);background:rgba(90,150,255,.14);transform:translateY(-1px);}
.btn-glow{
  color:#03101f;
  background:linear-gradient(120deg,#5ec5ff,#3d78ff 55%,#7ae8ff);
  box-shadow:0 8px 26px rgba(61,120,255,.45);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(70,170,255,.6);}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 16px rgba(61,120,255,.45);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,10,22,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(112,164,255,.12);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:74px;
  position:relative;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(150deg,rgba(61,120,255,.34),rgba(56,225,255,.14));
  border:1px solid rgba(120,190,255,.35);
  box-shadow:inset 0 0 18px rgba(80,170,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17.5px;letter-spacing:.5px;color:#f2f7ff;}
.brand-text em{
  font-style:normal;
  font-size:11.5px;
  letter-spacing:3.2px;
  color:#6fbcff;
  margin-top:3px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.main-nav a{
  position:relative;
  padding:9px 15px;
  border-radius:999px;
  font-size:14.5px;
  color:#a8bede;
  transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:#fff;background:rgba(90,150,255,.13);}
.main-nav a.is-active{color:#eaf4ff;background:rgba(84,146,255,.2);box-shadow:inset 0 0 0 1px rgba(120,190,255,.28);}
.main-nav a:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  padding:0;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:#cfe1ff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;width:17px;height:2px;border-radius:2px;background:#cfe1ff;
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;border-radius:2px;background:#cfe1ff;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;position:relative;}
.section--tight{padding:52px 0;}
.section--alt{background:linear-gradient(180deg,rgba(10,20,40,.66),rgba(5,10,22,0));border-top:1px solid rgba(112,164,255,.08);border-bottom:1px solid rgba(112,164,255,.08);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:2.4px;
  color:#6fc4ff;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,#5ec5ff);}
.section-head h2{font-size:clamp(22px,2.6vw,31px);color:#f3f8ff;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:66px 0 74px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  width:640px;height:640px;
  right:-220px;top:-260px;
  background:radial-gradient(circle,rgba(61,120,255,.28),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:52px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;
  border-radius:999px;
  font-size:13px;
  color:#9fd4ff;
  background:rgba(56,225,255,.08);
  border:1px solid rgba(96,200,255,.28);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.hero h1{
  margin:20px 0 20px;
  font-size:clamp(28px,3.7vw,45px);
  line-height:1.25;
  letter-spacing:-.6px;
  background:linear-gradient(104deg,#ffffff 8%,#cfe4ff 48%,#78c6ff 96%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{color:#a9bfe0;font-size:16px;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:38px;
  padding-top:26px;
  border-top:1px solid rgba(112,164,255,.14);
}
.hero-fact strong{display:block;font-size:16.5px;color:#eaf4ff;}
.hero-fact span{display:block;font-size:12.8px;color:var(--muted-2);margin-top:4px;}

.console{
  border-radius:var(--radius-lg);
  border:1px solid rgba(112,178,255,.28);
  background:linear-gradient(160deg,rgba(18,34,64,.92),rgba(7,14,30,.94));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  overflow:hidden;
}
.console-bar{
  display:flex;align-items:center;gap:10px;
  padding:13px 18px;
  border-bottom:1px solid rgba(112,164,255,.16);
  background:rgba(255,255,255,.028);
}
.console-dots{display:flex;gap:6px;}
.console-dots i{width:9px;height:9px;border-radius:50%;background:rgba(140,180,255,.32);}
.console-dots i:nth-child(1){background:#4b7dff;}
.console-dots i:nth-child(2){background:#38e1ff;}
.console-dots i:nth-child(3){background:rgba(140,180,255,.28);}
.console-bar span{font-size:12.5px;letter-spacing:1.4px;color:#89a9d6;}
.console-body{padding:20px 20px 22px;font-family:"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;font-size:13.2px;line-height:2.05;}
.console-line{display:flex;justify-content:space-between;gap:16px;color:#a9c6ea;}
.console-line b{color:#eaf4ff;font-weight:600;}
.console-line .ok{color:var(--accent);}
.console-line .warn{color:var(--warn);}
.console-sep{height:1px;background:linear-gradient(90deg,rgba(112,164,255,.32),transparent);margin:14px 0;}
.console-note{font-family:inherit;font-size:12.2px;color:var(--muted-2);margin-top:14px;line-height:1.7;}

/* ---------- 下载区 ---------- */
.download-wrap{padding:0 0 8px;}
.download-card{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:34px;
  align-items:center;
  padding:34px 38px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(112,178,255,.3);
  background:
    radial-gradient(600px 220px at 12% 0%,rgba(61,120,255,.26),transparent 70%),
    linear-gradient(140deg,rgba(20,38,72,.9),rgba(8,16,34,.92));
  box-shadow:var(--shadow);
  overflow:hidden;
}
.download-card::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(56,225,255,.08),transparent 46%);
  pointer-events:none;
}
.download-copy h2{font-size:clamp(20px,2.2vw,26px);color:#f2f8ff;}
.download-copy p{color:#a4bcde;font-size:14.6px;margin-top:10px;max-width:560px;}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.dl-btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 20px;
  border-radius:13px;
  font-size:14.2px;font-weight:600;
  color:#e8f3ff;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(120,190,255,.32);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.dl-btn svg{flex:0 0 auto;}
.dl-btn:hover{transform:translateY(-2px);background:rgba(90,160,255,.2);border-color:rgba(140,215,255,.66);box-shadow:0 12px 28px rgba(45,110,220,.4);}
.dl-btn:active{transform:translateY(0);}
.dl-btn:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.dl-btn--primary{
  color:#04121f;
  background:linear-gradient(120deg,#67ccff,#3d78ff);
  border-color:transparent;
  box-shadow:0 10px 28px rgba(61,120,255,.45);
}
.dl-btn--primary:hover{background:linear-gradient(120deg,#7fd7ff,#4a86ff);}

/* ---------- 看板 ---------- */
.dash-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.dash-card{
  min-width:0;
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(19,35,66,.78),rgba(9,17,34,.72));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.dash-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(4,12,30,.6);}
.dash-icon{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(61,120,255,.18);
  border:1px solid rgba(112,178,255,.28);
  color:#8fd4ff;
  margin-bottom:16px;
}
.dash-card h3{font-size:16.5px;color:#f0f6ff;}
.dash-card p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.8;}

/* ---------- 问题陈述 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:48px;
  align-items:start;
}
.split-copy h2{font-size:clamp(21px,2.4vw,29px);color:#f2f8ff;}
.split-copy p{color:var(--muted);font-size:15.4px;margin-top:16px;}
.problem-list{display:grid;gap:14px;}
.problem-item{
  display:grid;
  grid-template-columns:38px minmax(0,1fr);
  gap:16px;
  padding:20px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(13,25,48,.62);
  transition:border-color .22s ease,background .22s ease;
}
.problem-item:hover{border-color:var(--line-strong);background:rgba(18,33,62,.74);}
.problem-item .idx{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:13.5px;color:#7fc6ff;
  background:rgba(61,120,255,.16);
  border:1px solid rgba(112,178,255,.26);
}
.problem-item h3{font-size:15.5px;color:#ecf4ff;}
.problem-item p{font-size:13.9px;color:var(--muted);margin-top:7px;line-height:1.78;}

/* ---------- 操作演示 ---------- */
.demo-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.demo-card{
  min-width:0;
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(18,34,64,.82),rgba(8,15,30,.78));
  position:relative;
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease;
}
.demo-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.demo-card::before{
  content:attr(data-step);
  position:absolute;
  right:16px;top:8px;
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:56px;
  line-height:1;
  color:rgba(110,170,255,.1);
  font-weight:700;
}
.demo-card h3{font-size:16.5px;color:#f1f7ff;margin-bottom:10px;}
.demo-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.demo-code{
  margin-top:16px;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  background:rgba(3,8,20,.72);
  border:1px solid rgba(112,164,255,.16);
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12.6px;
  color:#8fd4ff;
  line-height:1.9;
  word-break:break-word;
}

/* ---------- 结果预览 ---------- */
.compare{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(9,18,36,.72);
  overflow:hidden;
}
.compare-row{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr) minmax(0,1fr);
}
.compare-row > div{
  padding:16px 20px;
  font-size:14.2px;
  border-bottom:1px solid rgba(112,164,255,.1);
  min-width:0;
}
.compare-row:last-child > div{border-bottom:none;}
.compare-head{background:rgba(61,120,255,.14);}
.compare-head > div{font-size:13.4px;font-weight:600;color:#b9d5ff;letter-spacing:.4px;}
.compare-row > div:first-child{color:#dce9ff;}
.compare-row .pos{color:#68f0c2;font-weight:600;}
.compare-row .neg{color:#ff8f9b;font-weight:600;}
.compare-tip{
  margin-top:16px;
  font-size:13.2px;
  color:var(--muted-2);
  line-height:1.8;
}

/* ---------- 成功路径 ---------- */
.path-list{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
  counter-reset:path;
}
.path-item{
  min-width:0;
  padding:26px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(16,31,60,.78),rgba(8,15,30,.72));
  position:relative;
}
.path-item .path-no{
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12.5px;
  letter-spacing:2px;
  color:#5ec5ff;
  margin-bottom:12px;
}
.path-item h3{font-size:16.5px;color:#f1f7ff;}
.path-item p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.8;}

/* ---------- 分类入口 ---------- */
.cat-entry{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:26px;
  align-items:center;
  padding:34px 36px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(112,178,255,.3);
  background:
    radial-gradient(520px 200px at 88% 0%,rgba(56,225,255,.18),transparent 68%),
    linear-gradient(140deg,rgba(19,36,70,.9),rgba(8,16,32,.9));
  box-shadow:var(--shadow);
}
.cat-entry h2{font-size:clamp(19px,2.1vw,25px);color:#f2f8ff;}
.cat-entry p{color:#a4bcde;font-size:14.6px;margin-top:10px;max-width:620px;}
.cat-slug{
  display:inline-block;
  margin-top:14px;
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12.4px;
  color:#7fc6ff;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(112,178,255,.28);
  background:rgba(61,120,255,.14);
}

/* ---------- 资讯列表 ---------- */
.news-layout{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:26px;
  align-items:start;
}
.news-list{display:grid;gap:14px;}
.news-card{
  display:block;
  padding:22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(12,23,45,.66);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(17,32,60,.8);}
.news-card:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.tag{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  font-size:12px;
  color:#9fd4ff;
  background:rgba(56,225,255,.1);
  border:1px solid rgba(96,200,255,.26);
}
.news-meta time{font-size:12.4px;color:var(--muted-2);}
.news-card h3{font-size:16px;color:#eef6ff;line-height:1.5;}
.news-card p{font-size:13.8px;color:var(--muted);margin-top:9px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{
  padding:24px 22px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(17,33,62,.8),rgba(8,15,30,.72));
  position:sticky;
  top:94px;
}
.news-side h3{font-size:15.5px;color:#eef6ff;margin-bottom:16px;}
.news-side ul{display:grid;gap:12px;}
.news-side li{min-width:0;}
.news-side a{
  display:block;
  font-size:13.9px;
  color:#b6cbe9;
  line-height:1.6;
  padding-left:14px;
  position:relative;
  transition:color .2s ease;
}
.news-side a::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:5px;height:5px;border-radius:50%;
  background:rgba(94,197,255,.7);
}
.news-side a:hover{color:#7fd7ff;}
.empty-tip{font-size:14px;color:var(--muted-2);padding:20px 0;}

/* ---------- 平台保障 ---------- */
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.trust-item{
  min-width:0;
  padding:22px 20px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(11,22,44,.6);
  text-align:center;
}
.trust-item svg{margin:0 auto 12px;display:block;color:#7fd7ff;}
.trust-item h3{font-size:15px;color:#eef6ff;}
.trust-item p{font-size:13.2px;color:var(--muted-2);margin-top:8px;line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(12,23,45,.66);
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item[open]{border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:19px 24px;
  font-size:15.4px;
  font-weight:600;
  color:#eaf3ff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(61,120,255,.1);}
.faq-item summary:focus-visible{outline:2px solid var(--brand-2);outline-offset:-3px;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:20px;
  font-weight:400;
  color:#7fd7ff;
  line-height:1;
  transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:14.2px;line-height:1.85;}

/* ---------- 收口 CTA ---------- */
.final-cta{
  padding:52px 40px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(112,178,255,.3);
  background:
    radial-gradient(620px 260px at 20% 0%,rgba(61,120,255,.3),transparent 70%),
    linear-gradient(140deg,rgba(20,38,72,.92),rgba(7,14,30,.94));
  box-shadow:var(--shadow);
  text-align:center;
}
.final-cta h2{font-size:clamp(21px,2.5vw,29px);color:#f4f9ff;}
.final-cta p{color:#a6bfe0;font-size:15px;margin:16px auto 0;max-width:660px;}
.final-cta .hero-actions{justify-content:center;margin-top:28px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  padding:56px 0 30px;
  border-top:1px solid rgba(112,164,255,.14);
  background:linear-gradient(180deg,rgba(6,12,26,.4),rgba(3,6,15,.92));
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:36px;
}
.footer-brand p{color:var(--muted-2);font-size:13.8px;line-height:1.85;margin-top:16px;max-width:340px;}
.footer-col h4{font-size:14.2px;color:#dfeaff;margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:13.8px;color:#93a7c9;transition:color .2s ease;}
.footer-col a:hover{color:#7fd7ff;}
.footer-bottom{
  margin-top:42px;
  padding-top:22px;
  border-top:1px solid rgba(112,164,255,.1);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:12.8px;
  color:#5e7496;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .site-header{padding:0;}
  .header-inner{min-height:66px;gap:16px;}
  .main-nav{
    display:none;
    position:absolute;
    top:100%;left:-24px;right:-24px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px 24px 20px;
    background:rgba(6,13,28,.98);
    border-bottom:1px solid rgba(112,164,255,.18);
    box-shadow:0 24px 40px rgba(2,8,22,.6);
    margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:12px 14px;border-radius:12px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:40px;}
  .hero{padding:48px 0 56px;}
  .split{grid-template-columns:minmax(0,1fr);gap:32px;}
  .dash-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .demo-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .path-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:minmax(0,1fr);}
  .news-side{position:static;}
  .download-card{grid-template-columns:minmax(0,1fr);gap:24px;padding:30px 26px;}
  .cat-entry{grid-template-columns:minmax(0,1fr);padding:28px 26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  .site-container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:40px 0;}
  .hero-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .compare-row{grid-template-columns:minmax(0,1fr);}
  .compare-row > div{border-bottom:1px solid rgba(112,164,255,.1);}
  .compare-row > div:first-child{background:rgba(61,120,255,.1);font-weight:600;}
  .compare-head{display:none;}
  .final-cta{padding:38px 22px;}
  .dl-actions{width:100%;}
  .dl-btn{flex:1 1 100%;justify-content:center;}
}
@media (max-width:520px){
  body{font-size:15.4px;}
  .brand-text strong{font-size:16px;}
  .hero h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .dash-grid,.demo-grid,.path-list,.trust-grid,.footer-grid{grid-template-columns:minmax(0,1fr);}
  .hero-facts{grid-template-columns:minmax(0,1fr);}
  .problem-item{grid-template-columns:32px minmax(0,1fr);gap:12px;padding:18px;}
  .problem-item .idx{width:32px;height:32px;font-size:12.5px;}
  .console-body{font-size:12.4px;}
  .console-line{flex-direction:column;gap:2px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: article */
:root{
  --bg:#050a16;
  --bg-deep:#03060f;
  --bg-soft:#0a1428;
  --panel:rgba(16,30,58,.72);
  --panel-soft:rgba(12,23,46,.6);
  --glass:rgba(96,155,255,.07);
  --line:rgba(112,164,255,.16);
  --line-strong:rgba(112,178,255,.4);
  --text:#e9f1ff;
  --muted:#93a7c9;
  --muted-2:#7288ab;
  --brand:#3d78ff;
  --brand-2:#38e1ff;
  --accent:#68f0c2;
  --warn:#ffb35c;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 22px 55px rgba(2,8,24,.6);
  --glow:0 10px 30px rgba(52,124,255,.4);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(61,120,255,.26),transparent 62%),
    radial-gradient(900px 520px at 6% 8%,rgba(56,225,255,.13),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  min-height:100vh;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
.site-container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.btn-ghost{
  color:#c8daf8;
  border-color:var(--line-strong);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{color:#fff;border-color:rgba(120,200,255,.75);background:rgba(90,150,255,.14);transform:translateY(-1px);}
.btn-glow{
  color:#03101f;
  background:linear-gradient(120deg,#5ec5ff,#3d78ff 55%,#7ae8ff);
  box-shadow:0 8px 26px rgba(61,120,255,.45);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(70,170,255,.6);}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 16px rgba(61,120,255,.45);}
/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,10,22,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(112,164,255,.12);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:74px;
  position:relative;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(150deg,rgba(61,120,255,.34),rgba(56,225,255,.14));
  border:1px solid rgba(120,190,255,.35);
  box-shadow:inset 0 0 18px rgba(80,170,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17.5px;letter-spacing:.5px;color:#f2f7ff;}
.brand-text em{
  font-style:normal;
  font-size:11.5px;
  letter-spacing:3.2px;
  color:#6fbcff;
  margin-top:3px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.main-nav a{
  position:relative;
  padding:9px 15px;
  border-radius:999px;
  font-size:14.5px;
  color:#a8bede;
  transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:#fff;background:rgba(90,150,255,.13);}
.main-nav a.is-active{color:#eaf4ff;background:rgba(84,146,255,.2);box-shadow:inset 0 0 0 1px rgba(120,190,255,.28);}
.main-nav a:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  padding:0;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:#cfe1ff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;width:17px;height:2px;border-radius:2px;background:#cfe1ff;
  position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;border-radius:2px;background:#cfe1ff;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* ---------- 通用板块 ---------- */
.section{padding:70px 0;position:relative;}
.section--tight{padding:48px 0;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,40,.66),rgba(5,10,22,0));
  border-top:1px solid rgba(112,164,255,.08);
  border-bottom:1px solid rgba(112,164,255,.08);
}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:2.4px;
  color:#6fc4ff;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,#5ec5ff);}
.section-head h2{font-size:clamp(22px,2.6vw,31px);color:#f3f8ff;line-height:1.35;letter-spacing:-.3px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;}
.glass-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:44px 0 34px;
  overflow:hidden;
}
.article-hero::after{
  content:"";
  position:absolute;
  width:600px;height:600px;
  right:-240px;top:-320px;
  background:radial-gradient(circle,rgba(61,120,255,.24),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted-2);margin-bottom:22px;
  position:relative;z-index:1;
}
.breadcrumb a{color:#93b3dd;transition:color .2s ease;}
.breadcrumb a:hover{color:#8fd6ff;}
.breadcrumb .sep{color:rgba(120,160,220,.45);}
.article-hero-inner{position:relative;z-index:1;max-width:900px;}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;color:#9fd4ff;
  background:rgba(56,225,255,.08);
  border:1px solid rgba(96,200,255,.28);
}
.article-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.article-hero h1{
  margin:18px 0 18px;
  font-size:clamp(25px,3.2vw,38px);
  line-height:1.34;
  letter-spacing:-.4px;
  background:linear-gradient(104deg,#ffffff 8%,#cfe4ff 52%,#78c6ff 98%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 24px;
  font-size:13.5px;color:var(--muted-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--brand-2);}
/* ---------- 正文布局 ---------- */
.article-section{padding-top:28px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 312px;
  gap:32px;
  align-items:start;
}
.article-main{
  padding:34px 36px 40px;
  min-width:0;
}
.article-content{color:#d3e0f5;font-size:16.5px;line-height:1.92;min-width:0;}
.article-content > * + *{margin-top:18px;}
.article-content h2{
  font-size:clamp(20px,2.2vw,25px);
  line-height:1.45;
  color:#f2f8ff;
  margin-top:38px;
  padding-left:14px;
  border-left:3px solid var(--brand-2);
}
.article-content h3{
  font-size:18px;
  color:#eaf3ff;
  margin-top:28px;
  line-height:1.5;
}
.article-content h4{font-size:16.5px;color:#e2eeff;margin-top:22px;}
.article-content p{color:#cbd9ef;}
.article-content strong{color:#f2f8ff;}
.article-content ul,.article-content ol{padding-left:22px;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin:9px 0;color:#cbd9ef;}
.article-content li::marker{color:#6fc4ff;}
.article-content a{color:#7cc8ff;text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-content a:hover{color:#b3e2ff;}
.article-content blockquote{
  margin:24px 0;
  padding:16px 22px;
  border-left:3px solid rgba(104,240,194,.6);
  background:rgba(104,240,194,.06);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#c6e6dd;
}
.article-content blockquote p{color:#c6e6dd;}
.article-content img{border-radius:var(--radius-sm);margin:22px 0;width:auto;max-width:100%;}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:var(--radius-sm);overflow:hidden;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
.article-content th{background:rgba(61,120,255,.16);color:#dcebff;font-weight:600;}
.article-content td{color:#cbd9ef;}
.article-content code{background:rgba(96,155,255,.14);padding:2px 6px;border-radius:6px;font-size:.9em;color:#9fe0ff;}
.article-content pre{
  overflow-x:auto;
  background:rgba(3,8,20,.82);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  font-size:14px;
  line-height:1.7;
}
.article-content pre code{background:none;padding:0;}
.article-empty{text-align:center;padding:30px 6px 12px;}
.article-empty h2{font-size:22px;color:#f2f8ff;margin-bottom:12px;border:0;padding:0;}
.article-empty p{color:var(--muted);margin-bottom:24px;font-size:15.5px;}
/* ---------- 侧栏 ---------- */
.article-aside{min-width:0;position:sticky;top:96px;}
.aside-card{
  background:var(--panel-soft);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 22px 20px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 16px 40px rgba(2,8,24,.45);
  margin-bottom:20px;
}
.aside-card:last-child{margin-bottom:0;}
.aside-card h3{
  font-size:15.5px;color:#eaf3ff;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.aside-card h3::before{
  content:"";width:3px;height:14px;border-radius:2px;
  background:linear-gradient(180deg,#5ec5ff,#3d78ff);
}
.aside-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:9px 0;
  border-bottom:1px dashed rgba(112,164,255,.12);
  font-size:14px;color:#b9cbe6;line-height:1.65;
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0;}
.aside-list li b{
  flex:0 0 auto;font-weight:600;color:#8fd6ff;font-size:13px;
  min-width:72px;
}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--radius-sm);
  font-size:14px;color:#c3d5f0;
  background:rgba(96,155,255,.06);
  border:1px solid rgba(112,164,255,.12);
  margin-bottom:10px;
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.aside-links a:last-child{margin-bottom:0;}
.aside-links a:hover{background:rgba(96,155,255,.15);border-color:var(--line-strong);color:#fff;transform:translateX(2px);}
.aside-links a span{color:#6fc4ff;font-size:12px;}
.aside-cta{
  background:linear-gradient(150deg,rgba(61,120,255,.22),rgba(56,225,255,.08));
  border:1px solid rgba(120,190,255,.32);
}
.aside-cta p{font-size:13.5px;color:#a9c2e2;line-height:1.7;margin-bottom:14px;}
.aside-cta .btn{width:100%;}
/* ---------- 机制卡片 ---------- */
.mech-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.mech-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  min-width:0;
}
.mech-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 20px 44px rgba(30,90,200,.28);}
.mech-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  font-size:15px;font-weight:700;color:#9fe0ff;
  background:rgba(61,120,255,.16);
  border:1px solid rgba(120,190,255,.3);
  margin-bottom:16px;
}
.mech-card h3{font-size:17px;color:#f0f6ff;margin-bottom:10px;line-height:1.45;}
.mech-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
/* ---------- 参数面板 ---------- */
.param-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(16,32,62,.86),rgba(8,16,34,.82));
  overflow:hidden;
  box-shadow:var(--shadow);
}
.param-row{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:22px;
  padding:20px 28px;
  border-bottom:1px solid rgba(112,164,255,.1);
  align-items:center;
  transition:background .2s ease;
}
.param-row:last-child{border-bottom:0;}
.param-row:hover{background:rgba(96,155,255,.06);}
.param-key{
  display:flex;align-items:center;gap:10px;
  font-size:15px;font-weight:600;color:#e6f0ff;min-width:0;
}
.param-key i{
  display:inline-block;width:7px;height:7px;border-radius:2px;transform:rotate(45deg);
  background:linear-gradient(135deg,#5ec5ff,#3d78ff);flex:0 0 auto;
}
.param-val{font-size:14.5px;color:#a9bfe0;line-height:1.75;min-width:0;}
.param-note{
  padding:14px 28px;
  font-size:13px;
  color:var(--muted-2);
  background:rgba(3,8,20,.4);
  border-top:1px solid rgba(112,164,255,.1);
}
/* ---------- 流程时间线 ---------- */
.flow-list{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.flow-item{
  position:relative;
  padding:24px 20px;
  border-radius:var(--radius);
  background:var(--panel-soft);
  border:1px solid var(--line);
  min-width:0;
  transition:border-color .22s ease,transform .22s ease;
}
.flow-item:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.flow-step{
  font-size:12px;letter-spacing:1.6px;color:#6fc4ff;
  text-transform:uppercase;margin-bottom:10px;display:block;
}
.flow-item h3{font-size:15.5px;color:#eef6ff;margin-bottom:9px;line-height:1.5;}
.flow-item p{font-size:13.8px;color:var(--muted);line-height:1.75;}
/* ---------- 适用情形 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.scene-card{
  border-radius:var(--radius);
  padding:26px 26px 24px;
  border:1px solid var(--line);
  background:var(--panel);
  min-width:0;
}
.scene-card h3{
  display:flex;align-items:center;gap:9px;
  font-size:16.5px;color:#f1f7ff;margin-bottom:14px;
}
.scene-card h3 .dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto;}
.scene-card.is-yes h3 .dot{background:var(--accent);box-shadow:0 0 12px rgba(104,240,194,.7);}
.scene-card.is-no h3 .dot{background:var(--warn);box-shadow:0 0 12px rgba(255,179,92,.7);}
.scene-card.is-yes{border-color:rgba(104,240,194,.24);}
.scene-card.is-no{border-color:rgba(255,179,92,.22);}
.scene-card ul{display:grid;gap:10px;}
.scene-card li{
  position:relative;padding-left:18px;
  font-size:14.5px;color:#b6c9e6;line-height:1.78;
}
.scene-card li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;background:rgba(143,214,255,.55);
}
/* ---------- 下载 ---------- */
.dl-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.dl-card{
  display:flex;align-items:center;gap:16px;
  padding:22px 24px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(18,34,66,.86),rgba(9,17,36,.82));
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  min-width:0;
}
.dl-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 18px 40px rgba(40,110,240,.32);
}
.dl-card:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.dl-icon{
  flex:0 0 auto;
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(61,120,255,.16);
  border:1px solid rgba(120,190,255,.3);
  color:#8fd6ff;
}
.dl-text{display:flex;flex-direction:column;gap:3px;min-width:0;}
.dl-text strong{font-size:15.5px;color:#f0f6ff;}
.dl-text em{font-style:normal;font-size:12.5px;color:var(--muted-2);}
/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--panel-soft);
  padding:0 24px;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(18,34,66,.72);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:19px 34px 19px 0;
  position:relative;
  font-size:15.5px;
  font-weight:600;
  color:#e8f2ff;
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  position:absolute;right:0;top:50%;
  width:9px;height:9px;
  border-right:2px solid #7cc8ff;
  border-bottom:2px solid #7cc8ff;
  transform:translateY(-70%) rotate(45deg);
  transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item summary:focus-visible{outline:2px solid var(--brand-2);outline-offset:-4px;border-radius:8px;}
.faq-item p{padding:0 0 20px;font-size:14.5px;color:#a9bfe0;line-height:1.85;}
/* ---------- 收尾转化 ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(120,190,255,.3);
  background:linear-gradient(135deg,rgba(61,120,255,.24),rgba(56,225,255,.08) 55%,rgba(10,20,40,.9));
  padding:44px 46px;
  box-shadow:var(--shadow);
}
.cta-panel::after{
  content:"";position:absolute;right:-140px;bottom:-180px;
  width:420px;height:420px;
  background:radial-gradient(circle,rgba(56,225,255,.24),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{font-size:clamp(21px,2.4vw,28px);color:#f4f9ff;line-height:1.4;margin-bottom:14px;position:relative;z-index:1;}
.cta-panel p{font-size:15px;color:#b9cde9;max-width:660px;margin-bottom:26px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  padding:60px 0 30px;
  border-top:1px solid rgba(112,164,255,.12);
  background:linear-gradient(180deg,rgba(6,12,26,.4),rgba(3,6,15,.92));
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,.8fr));
  gap:36px;
}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--muted-2);line-height:1.85;max-width:420px;}
.footer-col h4{font-size:14px;color:#dbe8fa;margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted-2);transition:color .2s ease;}
.footer-col a:hover{color:#8fd6ff;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(112,164,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:13px;color:rgba(147,167,201,.75);
}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px;}
  .article-main{padding:28px 26px 34px;}
  .mech-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .header-actions .btn-ghost{display:none;}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px 24px 20px;
    background:rgba(5,10,22,.97);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 44px rgba(2,8,24,.7);
    display:none;
    margin-left:0;
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:11px 14px;border-radius:10px;}
  .nav-toggle{display:inline-flex;}
  .header-inner{gap:14px;}
  .header-actions .btn-glow{display:none;}
}
@media (max-width:820px){
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{position:static;top:auto;}
  .aside-card{margin-bottom:16px;}
  .param-row{grid-template-columns:1fr;gap:6px;padding:16px 20px;}
  .param-note{padding:12px 20px;}
  .section{padding:54px 0;}
  .cta-panel{padding:32px 26px;}
}
@media (max-width:640px){
  .site-container{padding:0 18px;}
  .mech-grid,.flow-list,.scene-grid,.dl-grid{grid-template-columns:minmax(0,1fr);}
  .article-main{padding:22px 20px 28px;border-radius:var(--radius);}
  .article-content{font-size:15.8px;line-height:1.85;}
  .article-content h2{margin-top:30px;}
  .article-hero{padding:30px 0 24px;}
  .article-meta{gap:6px 16px;font-size:12.8px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .dl-card{padding:18px 18px;}
  .cta-actions .btn{width:100%;}
  .article-content table{font-size:13.5px;}
  .article-content th,.article-content td{padding:8px 10px;}
}
@media (max-width:400px){
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:10.5px;letter-spacing:2.4px;}
  .brand-mark{width:38px;height:38px;}
  .article-content{font-size:15.2px;}
}

/* roulang page: category1 */
:root{
  --bg:#050a16;
  --bg-deep:#03060f;
  --bg-soft:#0a1428;
  --panel:rgba(16,30,58,.72);
  --panel-soft:rgba(12,23,46,.6);
  --glass:rgba(96,155,255,.07);
  --line:rgba(112,164,255,.16);
  --line-strong:rgba(112,178,255,.4);
  --text:#e9f1ff;
  --muted:#93a7c9;
  --muted-2:#7288ab;
  --brand:#3d78ff;
  --brand-2:#38e1ff;
  --accent:#68f0c2;
  --warn:#ffb35c;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 22px 55px rgba(2,8,24,.6);
  --glow:0 10px 30px rgba(52,124,255,.4);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 78% -12%,rgba(61,120,255,.26),transparent 62%),
    radial-gradient(900px 520px at 6% 8%,rgba(56,225,255,.13),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure{margin:0;}
ul,ol{list-style:none;margin:0;padding:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
.site-container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  line-height:1.4;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.btn-ghost{
  color:#c8daf8;
  border-color:var(--line-strong);
  background:rgba(255,255,255,.03);
}
.btn-ghost:hover{color:#fff;border-color:rgba(120,200,255,.75);background:rgba(90,150,255,.14);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-glow{
  color:#03101f;
  background:linear-gradient(120deg,#5ec5ff,#3d78ff 55%,#7ae8ff);
  box-shadow:0 8px 26px rgba(61,120,255,.45);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(70,170,255,.6);}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 16px rgba(61,120,255,.45);}
/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,10,22,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(112,164,255,.12);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:74px;
  position:relative;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:13px;
  background:linear-gradient(150deg,rgba(61,120,255,.34),rgba(56,225,255,.14));
  border:1px solid rgba(120,190,255,.35);
  box-shadow:inset 0 0 18px rgba(80,170,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17.5px;letter-spacing:.5px;color:#f2f7ff;}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:3.2px;color:#6fbcff;margin-top:3px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
}
.main-nav a{
  position:relative;
  padding:9px 15px;
  border-radius:999px;
  font-size:14.5px;
  color:#a8bede;
  transition:color .2s ease,background .2s ease;
}
.main-nav a:hover{color:#fff;background:rgba(90,150,255,.13);}
.main-nav a.is-active{color:#eaf4ff;background:rgba(84,146,255,.2);box-shadow:inset 0 0 0 1px rgba(120,190,255,.28);}
.main-nav a:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  padding:0;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:#cfe1ff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:#cfe1ff;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;border-radius:2px;background:#cfe1ff;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
/* ---------- 通用板块 ---------- */
.section{padding:76px 0;position:relative;}
.section--alt{
  background:linear-gradient(180deg,rgba(10,20,40,.66),rgba(5,10,22,0));
  border-top:1px solid rgba(112,164,255,.08);
  border-bottom:1px solid rgba(112,164,255,.08);
}
.section-head{max-width:780px;margin-bottom:38px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:2.4px;
  color:#6fc4ff;text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,#5ec5ff);}
.section-head h2{font-size:clamp(21px,2.6vw,30px);line-height:1.35;color:#f3f8ff;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;}
/* ---------- 分类页首屏 ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(720px 400px at 86% 4%,rgba(61,120,255,.34),transparent 66%),
    linear-gradient(132deg,rgba(14,30,62,.96),rgba(5,10,24,.92));
  clip-path:polygon(0 0,100% 0,100% 90%,0 100%);
}
.cat-hero__inner{
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:48px;
  align-items:center;
  padding-top:62px;
  padding-bottom:96px;
}
.cat-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.4px;
  color:#9fd4ff;
  background:rgba(56,225,255,.08);
  border:1px solid rgba(96,200,255,.28);
}
.cat-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.cat-hero h1{
  margin:20px 0 20px;
  font-size:clamp(26px,3.5vw,42px);
  line-height:1.3;
  letter-spacing:-.5px;
  background:linear-gradient(104deg,#ffffff 8%,#cfe4ff 48%,#78c6ff 96%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-hero__lead{color:#a9bfe0;font-size:16px;max-width:600px;}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.cat-panel{
  min-width:0;
  padding:24px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,44,84,.78),rgba(10,20,42,.72));
  border:1px solid rgba(120,180,255,.26);
  box-shadow:var(--shadow),inset 0 0 60px rgba(56,130,255,.12);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.cat-panel__head{
  font-size:13px;
  letter-spacing:2px;
  color:#82c9ff;
  padding-bottom:14px;
  margin-bottom:10px;
  border-bottom:1px solid rgba(112,164,255,.16);
}
.cat-panel__row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  padding:11px 0;
  border-bottom:1px dashed rgba(112,164,255,.13);
  min-width:0;
}
.cat-panel__row:last-of-type{border-bottom:0;}
.cat-panel__label{flex:0 0 auto;font-size:13.5px;color:#9ab4da;}
.cat-panel__value{
  flex:1 1 auto;
  min-width:0;
  text-align:right;
  font-size:13.5px;
  color:#d7ecff;
  font-variant-numeric:tabular-nums;
}
.cat-panel__note{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid rgba(112,164,255,.14);
  font-size:13px;
  color:var(--muted-2);
}
/* ---------- 参数卡片 ---------- */
.param-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.param-card{
  min-width:0;
  padding:24px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.param-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.param-card h3{font-size:16.5px;color:#f0f7ff;margin-bottom:10px;}
.param-formula{
  display:inline-block;
  font-size:13px;
  color:#7fd4ff;
  background:rgba(56,225,255,.08);
  border:1px solid rgba(96,200,255,.2);
  border-radius:8px;
  padding:5px 10px;
  margin-bottom:12px;
  max-width:100%;
}
.param-card p{color:var(--muted);font-size:14.5px;}
/* ---------- 场景矩阵 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.scene-card{
  min-width:0;
  padding:24px;
  border-radius:var(--radius);
  background:var(--panel-soft);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(18,34,66,.8);}
.scene-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:1.2px;
  color:#8ef0cd;
  background:rgba(104,240,194,.1);
  border:1px solid rgba(104,240,194,.26);
  border-radius:999px;
  padding:3px 11px;
  margin-bottom:12px;
}
.scene-card h3{font-size:16.5px;color:#f0f7ff;margin-bottom:10px;}
.scene-card p{color:var(--muted);font-size:14.5px;}
.risk-note{
  margin-top:24px;
  padding:16px 20px;
  border-radius:var(--radius-sm);
  border-left:3px solid var(--warn);
  background:rgba(255,179,92,.08);
  color:#e7d3b7;
  font-size:14px;
}
/* ---------- 结果对比 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.compare-card{
  min-width:0;
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(22,40,76,.8),rgba(9,18,38,.72));
  border:1px solid var(--line);
  padding:22px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.compare-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.compare-card header{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px;
  padding-bottom:14px;
  margin-bottom:12px;
  border-bottom:1px solid rgba(112,164,255,.16);
}
.compare-card header strong{font-size:20px;color:#8fd0ff;letter-spacing:.5px;}
.compare-card header span{font-size:13px;color:var(--muted-2);}
.compare-card li{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  padding:9px 0;
  font-size:14px;
  color:#cddcf4;
  border-bottom:1px dashed rgba(112,164,255,.12);
  min-width:0;
}
.compare-card li:last-child{border-bottom:0;}
.compare-card li span:first-child{flex:0 0 auto;color:#94aacd;}
.compare-card li span:last-child{flex:1 1 auto;min-width:0;text-align:right;font-variant-numeric:tabular-nums;}
.compare-card li.is-alert span:last-child{color:#ffcf9b;}
/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;top:6px;bottom:6px;
  width:2px;
  background:linear-gradient(180deg,rgba(94,197,255,.7),rgba(61,120,255,.12));
}
.timeline__item{
  position:relative;
  display:flex;
  gap:18px;
  padding:0 0 26px;
  min-width:0;
}
.timeline__item:last-child{padding-bottom:0;}
.timeline__item::before{
  content:"";
  position:absolute;
  left:-24px;top:9px;
  width:10px;height:10px;
  border-radius:50%;
  background:#5ec5ff;
  box-shadow:0 0 12px rgba(94,197,255,.8);
}
.timeline__num{
  flex:0 0 auto;
  font-size:13px;
  letter-spacing:1px;
  color:#69b6ff;
  padding-top:2px;
  font-variant-numeric:tabular-nums;
}
.timeline__body{min-width:0;}
.timeline__body h3{font-size:16px;color:#eef6ff;margin-bottom:6px;}
.timeline__body p{color:var(--muted);font-size:14.5px;max-width:760px;}
/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  min-width:0;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.news-card__body{display:block;padding:22px;min-width:0;}
.news-date{
  display:inline-block;
  font-size:12.5px;
  color:#7fb6e8;
  background:rgba(61,120,255,.14);
  border-radius:999px;
  padding:3px 10px;
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.news-card h3{font-size:16px;line-height:1.55;color:#eaf3ff;margin-bottom:10px;}
.news-card p{color:var(--muted);font-size:14px;margin-bottom:14px;}
.news-more{font-size:13.5px;color:#7fd4ff;letter-spacing:.4px;}
.news-empty{
  padding:26px;
  border-radius:var(--radius);
  border:1px dashed rgba(112,164,255,.3);
  background:rgba(12,23,46,.45);
  color:var(--muted-2);
  font-size:14.5px;
  text-align:center;
}
/* ---------- 风控要点 / 快速解答 ---------- */
.guard-grid,.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.guard-card,.quick-card{
  min-width:0;
  padding:24px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease;
}
.guard-card:hover,.quick-card:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.guard-card h3,.quick-card h3{font-size:16.5px;color:#f0f7ff;margin-bottom:10px;}
.guard-card p,.quick-card p{color:var(--muted);font-size:14.5px;}
.guard-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:11px;
  margin-bottom:14px;
  background:linear-gradient(150deg,rgba(61,120,255,.34),rgba(56,225,255,.16));
  border:1px solid rgba(120,190,255,.3);
  color:#a9dcff;
  font-size:14px;
  font-weight:700;
}
/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel-soft);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:16px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  color:#7fd4ff;
  font-size:20px;
  line-height:1;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-q{font-size:15.5px;color:#e9f3ff;font-weight:600;line-height:1.6;}
.faq-body{padding:0 20px 18px;color:var(--muted);font-size:14.5px;}
.faq-body p{max-width:760px;}
/* ---------- 下载 ---------- */
.dl-panel{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:34px;
  align-items:center;
  padding:38px;
  border-radius:var(--radius-lg);
  background:
    radial-gradient(520px 260px at 90% 0%,rgba(61,120,255,.32),transparent 70%),
    linear-gradient(150deg,rgba(20,40,80,.86),rgba(8,16,34,.88));
  border:1px solid rgba(120,180,255,.26);
  box-shadow:var(--shadow);
}
.dl-panel h2{font-size:clamp(20px,2.4vw,27px);color:#f4f9ff;margin-bottom:12px;}
.dl-panel p{color:var(--muted);font-size:15px;}
.dl-actions{display:flex;flex-direction:column;gap:12px;min-width:0;}
.dl-btn{width:100%;padding:13px 20px;}
/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(180deg,rgba(6,12,26,.4),rgba(3,6,15,.96));
  border-top:1px solid rgba(112,164,255,.12);
  padding:56px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:34px;
}
.footer-brand p{
  margin-top:16px;
  color:var(--muted-2);
  font-size:13.5px;
  line-height:1.85;
  max-width:400px;
}
.footer-col h4{font-size:14px;color:#dce9ff;letter-spacing:.6px;margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:var(--muted);font-size:14px;transition:color .2s ease;}
.footer-col ul a:hover{color:#8fd0ff;}
.footer-col ul a:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(112,164,255,.1);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  color:var(--muted-2);
  font-size:13px;
}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .param-grid,.guard-grid,.quick-grid,.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-grid{grid-template-columns:1fr;}
  .hero-grid,.cat-hero__inner{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-panel{grid-template-columns:1fr;gap:24px;padding:30px;}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;
    top:74px;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin-left:0;
    padding:14px 20px 18px;
    background:rgba(6,12,26,.98);
    border-bottom:1px solid rgba(112,164,255,.16);
    box-shadow:0 18px 40px rgba(0,0,0,.5);
  }
  .main-nav.nav-open{display:flex;}
  .main-nav a{padding:12px 14px;border-radius:12px;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .cat-hero{clip-path:polygon(0 0,100% 0,100% 95%,0 100%);}
  .cat-hero__inner{padding-top:46px;padding-bottom:72px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .scene-grid{grid-template-columns:1fr;}
  .param-grid,.guard-grid,.quick-grid,.news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .site-container{padding:0 18px;}
  .header-actions .btn{display:none;}
  .brand-text strong{font-size:16px;}
  .brand-text em{letter-spacing:2.4px;}
  .cat-panel{padding:20px;}
  .cat-panel__row{flex-direction:column;gap:4px;}
  .cat-panel__value{text-align:left;}
  .compare-card li{font-size:13.5px;}
  .dl-panel{padding:24px 20px;}
  .timeline{padding-left:22px;}
}