/* roulang page: index */
:root{
  --bg:#070b18;
  --bg-2:#0a1024;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.078);
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(120,160,255,.34);
  --text:#e9eefc;
  --muted:#93a3c6;
  --primary:#3d7bff;
  --primary-2:#6aa4ff;
  --accent:#2fe0d0;
  --warn:#ffb648;
  --danger:#ff8b8b;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 44px rgba(3,8,24,.55);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 10% -12%, rgba(61,123,255,.24), transparent 62%),
    radial-gradient(820px 480px at 92% -4%, rgba(47,224,208,.13), transparent 64%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.site-container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);border-bottom:1px solid var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:18px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--primary),#7a5cff);box-shadow:0 0 20px rgba(61,123,255,.55)}
.brand-text strong{display:block;font-size:16px;letter-spacing:.4px}
.brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.6px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{padding:9px 15px;border-radius:999px;font-size:14px;color:var(--muted);transition:background .22s,color .22s,box-shadow .22s}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.site-nav a.is-active{color:#fff;background:rgba(61,123,255,.2);box-shadow:inset 0 0 0 1px rgba(61,123,255,.5)}
.nav-cta{padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#fff;white-space:nowrap;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 20px rgba(61,123,255,.5);transition:transform .22s,box-shadow .22s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(61,123,255,.8)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:13px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s,border-color .22s}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 24px rgba(61,123,255,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(61,123,255,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:var(--accent);color:#fff}

/* hero */
.hero{padding:66px 0 58px;position:relative;overflow:hidden}
.hero-status{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;font-size:13px;color:#bcd0ff;background:rgba(61,123,255,.13);border:1px solid rgba(61,123,255,.36)}
.hero-status .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.hero h1{font-size:clamp(26px,3.4vw,42px);margin:22px 0 18px;letter-spacing:.2px}
.hero h1 .hl{background:linear-gradient(120deg,#6aa4ff,#2fe0d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:880px;color:var(--muted);font-size:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 42px}
.hero-matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.matrix-item{display:flex;gap:14px;align-items:flex-start;min-width:0;padding:18px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .25s,background .25s,border-color .25s,box-shadow .25s}
.matrix-item:hover{transform:translateY(-3px);background:var(--panel-2);border-color:var(--line-strong);box-shadow:var(--shadow)}
.matrix-icon{flex:0 0 42px;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;color:#8fb8ff;background:rgba(61,123,255,.16);border:1px solid rgba(61,123,255,.38)}
.matrix-icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.matrix-item h3{font-size:15px;margin-bottom:4px}
.matrix-item p{font-size:13px;color:var(--muted);line-height:1.62}

/* sections */
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));border-top:1px solid rgba(120,160,255,.1);border-bottom:1px solid rgba(120,160,255,.1)}
.section-head{max-width:780px;margin-bottom:38px}
.section-label{display:inline-block;font-size:12px;letter-spacing:2.4px;color:#7fa6ff;margin-bottom:12px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15px}

/* status strip */
.status-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.status-cell{min-width:0;padding:22px 20px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(61,123,255,.14),rgba(255,255,255,.03));border:1px solid var(--line)}
.status-cell strong{display:block;font-size:16px;margin-bottom:6px}
.status-cell span{font-size:13px;color:var(--muted)}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{min-width:0;padding:26px 24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .25s,background .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);background:var(--panel-2);border-color:var(--line-strong);box-shadow:var(--shadow)}
.card h3{font-size:17px;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted)}

/* steps */
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.step{min-width:0;padding:28px 24px 26px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(61,123,255,.15),rgba(255,255,255,.03));border:1px solid var(--line);transition:transform .25s,border-color .25s,box-shadow .25s}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.step-index{display:inline-block;font-size:12px;font-weight:700;letter-spacing:1.6px;color:#8fb8ff;padding:4px 10px;border-radius:999px;background:rgba(61,123,255,.16);border:1px solid rgba(61,123,255,.34);margin-bottom:16px}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--muted)}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.tl-item{min-width:0;padding:22px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--line);position:relative;transition:border-color .25s,background .25s}
.tl-item:hover{border-color:var(--accent);background:var(--panel-2)}
.tl-item b{display:block;font-size:12px;letter-spacing:1.4px;color:#7fa6ff;margin-bottom:9px}
.tl-item h3{font-size:15px;margin-bottom:7px}
.tl-item p{font-size:13px;color:var(--muted)}

/* risk */
.risk-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.risk-list li{display:flex;gap:14px;padding:17px 0;border-bottom:1px dashed rgba(120,160,255,.18)}
.risk-list li:last-child{border-bottom:none}
.risk-list .rk{flex:0 0 28px;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--accent);background:rgba(47,224,208,.14);border:1px solid rgba(47,224,208,.32)}
.risk-list h3{font-size:15px;margin-bottom:3px}
.risk-list p{font-size:14px;color:var(--muted)}
.risk-note{padding:28px 26px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(255,182,72,.14),rgba(255,255,255,.03));border:1px solid rgba(255,182,72,.3)}
.risk-note h3{font-size:17px;color:var(--warn);margin-bottom:12px}
.risk-note p{font-size:14px;color:#d6cbb6}
.risk-note p + p{margin-top:10px}

/* myths */
.myth-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.myth{min-width:0;padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:border-color .25s,background .25s}
.myth:hover{border-color:var(--line-strong);background:var(--panel-2)}
.myth .wrong{font-size:15px;color:var(--danger);margin-bottom:12px;font-weight:600}
.myth .right{font-size:14px;color:var(--muted)}
.myth .right::before{content:"正确理解：";color:var(--accent);font-weight:600}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.scene{min-width:0;padding:24px 20px;border-radius:var(--radius);background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);transition:transform .25s,border-color .25s}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.scene h3{font-size:16px;margin-bottom:8px}
.scene p{font-size:13px;color:var(--muted)}

/* channel */
.channel-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:34px;border-radius:22px;background:linear-gradient(120deg,rgba(61,123,255,.2),rgba(47,224,208,.08));border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.channel-card h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.channel-card p{font-size:14px;color:#b9c8e8;max-width:620px}

/* download */
.download-panel{padding:42px;border-radius:26px;background:linear-gradient(150deg,rgba(61,123,255,.22),rgba(9,14,32,.92));border:1px solid rgba(61,123,255,.38);box-shadow:0 0 70px rgba(61,123,255,.16) inset,var(--shadow)}
.download-panel h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px}
.download-panel > p{color:var(--muted);font-size:15px;max-width:760px}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}
.dl-card{display:flex;flex-direction:column;gap:6px;min-width:0;padding:24px 22px;border-radius:16px;background:rgba(7,11,24,.6);border:1px solid var(--line-strong);transition:transform .25s,border-color .25s,box-shadow .25s}
.dl-card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 0 28px rgba(47,224,208,.26)}
.dl-card strong{font-size:17px}
.dl-card span{font-size:13px;color:var(--muted)}
.download-note{margin-top:20px;font-size:13px;color:#8294b6}

/* news */
.news-layout{display:grid;grid-template-columns:1.6fr .9fr;gap:26px;align-items:start}
.news-item{display:block;min-width:0;padding:24px;border-radius:16px;background:var(--panel);border:1px solid var(--line);margin-bottom:16px;transition:transform .24s,border-color .24s,background .24s}
.news-item:last-child{margin-bottom:0}
.news-item:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--panel-2)}
.news-item h3{font-size:17px;margin-bottom:8px;overflow-wrap:break-word}
.news-item p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px;font-size:12px;color:#7d8db0}
.tag{padding:3px 10px;border-radius:999px;background:rgba(61,123,255,.16);border:1px solid rgba(61,123,255,.32);color:#a9c4ff}
.news-side{padding:24px;border-radius:18px;background:rgba(255,255,255,.035);border:1px solid var(--line)}
.news-side h3{font-size:15px;margin-bottom:16px;color:#c7d5f5}
.side-item{display:block;padding:12px 0;border-bottom:1px dashed rgba(120,160,255,.16);font-size:14px;color:var(--muted);transition:color .2s,padding-left .2s}
.side-item:last-child{border-bottom:none}
.side-item:hover{color:var(--accent);padding-left:6px}
.news-empty{padding:30px;border-radius:16px;background:var(--panel);border:1px dashed var(--line-strong);color:var(--muted);font-size:14px;text-align:center}

/* faq */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{padding:20px 24px;border-radius:14px;background:var(--panel);border:1px solid var(--line);transition:border-color .24s,background .24s}
.faq-item[open]{border-color:var(--line-strong);background:var(--panel-2)}
.faq-item summary{cursor:pointer;font-size:16px;font-weight:600;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:20px;color:var(--primary-2);line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item p{margin-top:12px;font-size:14px;color:var(--muted)}

/* cta */
.cta-band{padding:20px 0 76px}
.cta-inner{text-align:center;padding:52px 28px;border-radius:26px;background:radial-gradient(620px 260px at 50% 0%,rgba(61,123,255,.34),transparent 72%),rgba(255,255,255,.04);border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-inner p{color:var(--muted);font-size:15px;max-width:700px;margin:0 auto 26px}

/* footer */
.site-footer{margin-top:10px;padding:56px 0 30px;border-top:1px solid var(--line);background:rgba(5,8,18,.88)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(120,160,255,.12)}
.footer-brand .brand-mark{margin-bottom:14px}
.footer-brand strong{font-size:15px;display:block}
.footer-brand p{margin-top:12px;font-size:14px;color:var(--muted);max-width:360px}
.footer-col h3{font-size:14px;margin-bottom:14px;color:#c7d5f5}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:var(--muted);transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--accent);padding-left:5px}
.friend-links{padding:30px 0;border-bottom:1px solid rgba(120,160,255,.12)}
.friend-title{font-size:14px;color:#c7d5f5;margin-bottom:14px}
.friend-list{display:flex;flex-wrap:wrap;gap:10px}
.friend-list a{padding:6px 15px;border-radius:999px;font-size:13px;color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .2s,border-color .2s,background .2s}
.friend-list a:hover{color:#fff;border-color:var(--accent);background:rgba(47,224,208,.1)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:24px;font-size:13px;color:#6c7c9e}

/* responsive */
@media (max-width:1024px){
  .hero-matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(3,minmax(0,1fr))}
  .status-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .risk-layout{grid-template-columns:1fr}
  .news-layout{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .header-inner{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px;min-height:auto}
  .brand-text small{display:none}
  .site-nav{order:3;width:100%;margin-left:0;overflow-x:auto;padding:4px 0 2px;gap:8px;-webkit-overflow-scrolling:touch}
  .site-nav a{white-space:nowrap;font-size:13px;padding:8px 13px}
  .nav-cta{margin-left:auto;padding:9px 16px;font-size:13px}
}
@media (max-width:768px){
  .site-container{padding:0 18px}
  .section{padding:54px 0}
  .hero{padding:46px 0 42px}
  .hero-actions{margin:24px 0 34px}
  .hero-matrix,.card-grid,.step-grid,.timeline,.myth-grid,.scene-grid,.status-strip,.download-grid{grid-template-columns:1fr}
  .download-panel{padding:28px 22px}
  .channel-card{padding:26px 22px}
  .cta-inner{padding:40px 22px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .btn{width:100%}
  .hero-actions .btn{width:auto;flex:1 1 180px}
}
@media (max-width:520px){
  body{font-size:15px}
  .hero h1{font-size:24px}
  .card,.step,.myth,.news-item,.faq-item{padding:20px 18px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --bg:#070b18;
  --bg-2:#0a1024;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.078);
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(120,160,255,.34);
  --text:#e9eefc;
  --muted:#93a3c6;
  --primary:#3d7bff;
  --primary-2:#6aa4ff;
  --accent:#2fe0d0;
  --warn:#ffb648;
  --danger:#ff8b8b;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 44px rgba(3,8,24,.55);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 10% -12%, rgba(61,123,255,.24), transparent 62%),
    radial-gradient(820px 480px at 92% -4%, rgba(47,224,208,.13), transparent 64%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button{font:inherit}
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{max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);border-bottom:1px solid var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:18px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--primary),#7a5cff);box-shadow:0 0 20px rgba(61,123,255,.55)}
.brand-text strong{display:block;font-size:16px;letter-spacing:.4px}
.brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.6px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{padding:9px 15px;border-radius:999px;font-size:14px;color:var(--muted);transition:background .22s,color .22s,box-shadow .22s}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.site-nav a.is-active{color:#fff;background:rgba(61,123,255,.2);box-shadow:inset 0 0 0 1px rgba(61,123,255,.5)}
.nav-cta{padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#fff;white-space:nowrap;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 20px rgba(61,123,255,.5);transition:transform .22s,box-shadow .22s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(61,123,255,.8)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:13px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s,border-color .22s}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 24px rgba(61,123,255,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(61,123,255,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:var(--accent);color:#fff}
.btn:focus-visible,.nav-cta:focus-visible,.site-nav a:focus-visible,.brand:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* article layout */
.article-hero{padding:52px 0 34px;border-bottom:1px solid rgba(120,160,255,.12)}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{color:#9db4e6;transition:color .2s}
.crumb a:hover{color:var(--accent)}
.crumb span.sep{color:rgba(147,163,198,.5)}
.article-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;font-size:12.5px;color:#bcd0ff;background:rgba(61,123,255,.14);border:1px solid rgba(61,123,255,.36)}
.article-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.article-hero h1{font-size:clamp(24px,3.1vw,38px);margin:18px 0 16px;letter-spacing:.2px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta b{color:#cddafa;font-weight:600}

.article-main{padding:44px 0 70px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start}
.article-body{
  min-width:0;
  padding:34px 36px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.article-body h2{font-size:21px;margin:34px 0 14px;padding-left:14px;border-left:3px solid var(--primary);line-height:1.4}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:17px;margin:24px 0 10px;color:#d5e1ff}
.article-body p{font-size:15.5px;color:#c3cfe8;margin:0 0 15px;line-height:1.88}
.article-body ul,.article-body ol{font-size:15.5px;color:#c3cfe8;margin:0 0 18px;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:9px;line-height:1.8}
.article-body ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:2px;background:var(--accent);box-shadow:0 0 8px rgba(47,224,208,.7)}
.article-body ol{counter-reset:li}
.article-body ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:6px;display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--accent);background:rgba(47,224,208,.14)}
.article-body img{border-radius:var(--radius-sm);margin:18px 0;border:1px solid var(--line)}
.article-body blockquote{margin:20px 0;padding:16px 20px;border-radius:var(--radius-sm);background:rgba(61,123,255,.1);border-left:3px solid var(--primary);color:#ccd9f5;font-size:15px}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--line);text-align:left;color:#c3cfe8}
.article-body th{background:rgba(61,123,255,.14);color:#e3ebff;font-weight:600}
.article-body a{color:var(--primary-2);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}

.article-empty{padding:48px 26px;text-align:center}
.article-empty h2{font-size:20px;margin-bottom:12px}
.article-empty p{color:var(--muted);font-size:14.5px;margin-bottom:22px}

/* sidebar */
.article-side{display:grid;gap:18px;min-width:0;position:sticky;top:96px}
.side-card{min-width:0;padding:22px 20px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.side-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--accent))}
.side-list li{padding:10px 0;border-bottom:1px dashed rgba(120,160,255,.16);font-size:13.5px}
.side-list li:last-child{border-bottom:none;padding-bottom:0}
.side-list li:first-child{padding-top:0}
.side-list a{color:#b8c8e8;transition:color .2s}
.side-list a:hover{color:var(--accent)}
.side-note{font-size:13px;color:var(--muted);line-height:1.75}
.side-dl{display:grid;gap:10px;margin-top:4px}
.side-dl a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-radius:11px;font-size:13.5px;color:#dbe5ff;background:rgba(255,255,255,.05);border:1px solid var(--line);transition:background .22s,border-color .22s,transform .22s}
.side-dl a:hover{background:rgba(61,123,255,.16);border-color:var(--line-strong);transform:translateY(-1px)}
.side-dl a .os{font-size:11px;color:var(--muted);letter-spacing:.5px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags span{padding:5px 12px;border-radius:999px;font-size:12.5px;color:#a8bde3;background:rgba(255,255,255,.05);border:1px solid var(--line)}

/* related / points */
.related{padding:0 0 76px}
.sub-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:30px}
.sub-head h2{font-size:clamp(20px,2.2vw,26px)}
.sub-head p{color:var(--muted);font-size:14px;margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{min-width:0;padding:24px 22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:transform .25s,background .25s,border-color .25s,box-shadow .25s}
.related-card:hover{transform:translateY(-4px);background:var(--panel-2);border-color:var(--line-strong);box-shadow:var(--shadow)}
.related-card h3{font-size:16px;margin-bottom:9px}
.related-card p{font-size:13.5px;color:var(--muted);line-height:1.75}

.point-strip{padding:40px 0 62px;border-top:1px solid rgba(120,160,255,.12)}
.point-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.point-item{min-width:0;padding:20px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--line);transition:border-color .25s,background .25s}
.point-item:hover{border-color:var(--accent);background:var(--panel-2)}
.point-item b{display:block;font-size:12px;letter-spacing:1.4px;color:#7fa6ff;margin-bottom:8px}
.point-item h3{font-size:15px;margin-bottom:7px}
.point-item p{font-size:13px;color:var(--muted);line-height:1.7}

/* download band */
.dl-band{padding:56px 0}
.dl-card{padding:38px 34px;border-radius:24px;background:linear-gradient(135deg,rgba(61,123,255,.2),rgba(47,224,208,.08));border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.dl-card h2{font-size:clamp(20px,2.3vw,27px);margin-bottom:12px}
.dl-card p{color:#b9c8e6;font-size:14.5px;max-width:720px}
.dl-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:26px}
.dl-btn{display:flex;flex-direction:column;gap:3px;padding:15px 20px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid var(--line-strong);transition:background .22s,transform .22s,box-shadow .22s;min-width:0}
.dl-btn:hover{background:rgba(61,123,255,.24);transform:translateY(-2px);box-shadow:0 0 26px rgba(61,123,255,.4)}
.dl-btn strong{font-size:15px}
.dl-btn span{font-size:12px;color:var(--muted)}

/* footer */
.site-footer{padding:52px 0 26px;border-top:1px solid var(--line);background:rgba(6,9,20,.7)}
.footer-top{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(120,160,255,.12)}
.footer-brand strong{display:block;font-size:15px;margin:12px 0 10px;line-height:1.5}
.footer-brand p{font-size:13.5px;color:var(--muted);max-width:520px}
.footer-col h3{font-size:14px;margin-bottom:14px;color:#cfdcf7}
.footer-col a{display:block;font-size:13.5px;color:var(--muted);padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.friend-links{padding:24px 0 6px;border-bottom:1px solid rgba(120,160,255,.12)}
.friend-title{font-size:14px;margin-bottom:12px;color:#cfdcf7}
.friend-list{display:flex;flex-wrap:wrap;gap:9px}
.friend-list a{padding:6px 13px;border-radius:999px;font-size:13px;color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .2s,border-color .2s,background .2s}
.friend-list a:hover{color:#fff;border-color:var(--line-strong);background:rgba(61,123,255,.16)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:12.5px;color:#6f7fa4}

@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:26px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .header-inner{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px}
  .site-nav{margin-left:0;order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
  .site-nav a{white-space:nowrap}
  .nav-cta{margin-left:auto}
  .article-body{padding:24px 20px}
  .article-body h2{font-size:19px}
  .dl-actions{grid-template-columns:1fr}
  .point-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .article-side{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:26px}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  .article-hero{padding:34px 0 26px}
  .article-body{padding:20px 16px}
  .article-body p,.article-body ul,.article-body ol{font-size:15px}
  .dl-card{padding:26px 18px}
  .brand-text small{display:none}
  .btn{padding:12px 20px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --bg:#070b18;
  --bg-2:#0a1024;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.078);
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(120,160,255,.34);
  --text:#e9eefc;
  --muted:#93a3c6;
  --primary:#3d7bff;
  --primary-2:#6aa4ff;
  --accent:#2fe0d0;
  --warn:#ffb648;
  --danger:#ff8b8b;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 44px rgba(3,8,24,.55);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 10% -12%, rgba(61,123,255,.24), transparent 62%),
    radial-gradient(820px 480px at 92% -4%, rgba(47,224,208,.13), transparent 64%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.site-container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);border-bottom:1px solid var(--line);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:18px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--primary),#7a5cff);box-shadow:0 0 20px rgba(61,123,255,.55);flex:0 0 auto}
.brand-text strong{display:block;font-size:16px;letter-spacing:.4px}
.brand-text small{display:block;font-size:11px;color:var(--muted);letter-spacing:.6px}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.site-nav a{padding:9px 15px;border-radius:999px;font-size:14px;color:var(--muted);white-space:nowrap;transition:background .22s,color .22s,box-shadow .22s}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.site-nav a.is-active{color:#fff;background:rgba(61,123,255,.2);box-shadow:inset 0 0 0 1px rgba(61,123,255,.5)}
.nav-cta{padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;color:#fff;white-space:nowrap;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 20px rgba(61,123,255,.5);transition:transform .22s,box-shadow .22s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 30px rgba(61,123,255,.8)}
.nav-cta:active{transform:translateY(0)}

/* buttons & tags */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:13px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,color .22s}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),#6f5bff);box-shadow:0 0 24px rgba(61,123,255,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(61,123,255,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line-strong)}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:var(--accent);color:#fff}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;color:#a8c6ff;background:rgba(61,123,255,.14);border:1px solid rgba(61,123,255,.34)}
.tag-accent{color:#8ef4e8;background:rgba(47,224,208,.12);border-color:rgba(47,224,208,.34)}
.tag-warn{color:#ffd79a;background:rgba(255,182,72,.12);border-color:rgba(255,182,72,.34)}

/* hero */
.hero{padding:56px 0 62px;position:relative;overflow:hidden}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs span{opacity:.6}
.crumbs a:hover{color:#fff}
.hero-status{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;font-size:13px;color:#bcd0ff;background:rgba(61,123,255,.13);border:1px solid rgba(61,123,255,.36)}
.hero-status .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:44px;align-items:center}
.hero h1{font-size:clamp(25px,3.1vw,38px);margin:20px 0 18px;letter-spacing:.2px;line-height:1.36}
.hero h1 .hl{background:linear-gradient(120deg,#6aa4ff,#2fe0d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:var(--muted);font-size:15.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-panel{position:relative;min-width:0;padding:24px;border-radius:22px;background:linear-gradient(160deg,rgba(61,123,255,.16),rgba(255,255,255,.04) 42%,rgba(47,224,208,.09));border:1px solid var(--line-strong);box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:6px}
.panel-head strong{font-size:14px;letter-spacing:.6px}
.panel-head span{font-size:11px;color:var(--muted)}
.panel-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(120,160,255,.16);min-width:0}
.panel-row:last-of-type{border-bottom:none}
.panel-row .pr-label{font-size:13.5px;color:var(--muted);min-width:0}
.panel-row .pr-value{font-size:14.5px;font-weight:700;color:#fff;white-space:nowrap}
.panel-row .pr-value.accent{color:var(--accent)}
.panel-row .pr-value.warn{color:var(--warn)}
.panel-note{margin-top:12px;font-size:12px;color:var(--muted);line-height:1.6}

/* sections */
.section{padding:72px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));border-top:1px solid rgba(120,160,255,.1);border-bottom:1px solid rgba(120,160,255,.1)}
.section-head{max-width:800px;margin-bottom:36px}
.section-label{display:inline-block;font-size:12px;letter-spacing:2.4px;color:#7fa6ff;margin-bottom:12px}
.section-head h2{font-size:clamp(21px,2.3vw,29px);margin-bottom:14px;line-height:1.4}
.section-head p{color:var(--muted);font-size:15px}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{min-width:0;padding:26px 24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .25s,background .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);background:var(--panel-2);border-color:var(--line-strong);box-shadow:var(--shadow)}
.card h3{font-size:17px;margin-bottom:10px;line-height:1.45}
.card p{font-size:14px;color:var(--muted)}
.card .tag{margin-bottom:14px}
.card ul{margin-top:14px;display:grid;gap:8px}
.card ul li{position:relative;padding-left:16px;font-size:13.5px;color:var(--muted)}
.card ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--primary-2);opacity:.8}

/* steps */
.step-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.tl-item{min-width:0;padding:22px 18px;border-radius:14px;background:var(--panel);border:1px solid var(--line);position:relative;transition:border-color .25s,background .25s,transform .25s}
.tl-item:hover{border-color:var(--accent);background:var(--panel-2);transform:translateY(-3px)}
.tl-item b{display:block;font-size:12px;letter-spacing:1.4px;color:#7fa6ff;margin-bottom:9px}
.tl-item h3{font-size:15px;margin-bottom:8px;line-height:1.45}
.tl-item p{font-size:13px;color:var(--muted)}

/* risk */
.risk-wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:26px;align-items:start}
.risk-list li{display:flex;gap:14px;padding:17px 0;border-bottom:1px dashed rgba(120,160,255,.18);min-width:0}
.risk-list li:last-child{border-bottom:none}
.risk-list .rk{flex:0 0 28px;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--accent);background:rgba(47,224,208,.14);border:1px solid rgba(47,224,208,.3)}
.risk-list h3{font-size:15px;margin-bottom:5px}
.risk-list p{font-size:13.5px;color:var(--muted)}
.panel-box{padding:24px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(255,182,72,.13),rgba(255,255,255,.04));border:1px solid rgba(255,182,72,.32);min-width:0}
.panel-box h3{font-size:16px;margin-bottom:12px;color:#ffd79a}
.panel-box p{font-size:13.5px;color:var(--muted);margin-bottom:10px}
.panel-box p:last-child{margin-bottom:0}

/* params */
.param-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 20px}
.param-row{display:grid;grid-template-columns:minmax(0,132px) minmax(0,1fr);gap:14px;padding:16px 18px;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--line);min-width:0;transition:border-color .25s,background .25s}
.param-row:hover{border-color:var(--line-strong);background:var(--panel-2)}
.param-row dt{font-size:13.5px;font-weight:700;color:#bcd0ff}
.param-row dd{font-size:13.5px;color:var(--muted)}

/* faq */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.faq-item{min-width:0;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--line);overflow:hidden;transition:border-color .25s,background .25s}
.faq-item[open]{border-color:var(--line-strong);background:var(--panel-2)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:14px;transition:color .22s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:18px;color:var(--accent);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{color:#fff}
.faq-item p{padding:0 20px 20px;font-size:13.5px;color:var(--muted)}

/* posts */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.post-card{display:flex;flex-direction:column;gap:10px;min-width:0;padding:22px;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--line);transition:transform .25s,background .25s,border-color .25s,box-shadow .25s}
.post-card:hover{transform:translateY(-3px);background:var(--panel-2);border-color:var(--line-strong);box-shadow:var(--shadow)}
.post-card h3{font-size:15.5px;line-height:1.55;min-width:0}
.post-card p{font-size:13px;color:var(--muted)}
.post-meta{font-size:12px;color:#7f90b5;margin-top:auto;padding-top:8px;border-top:1px dashed rgba(120,160,255,.14)}
.post-empty{font-size:14px;color:var(--muted);padding:20px 0}

/* download */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-card{display:flex;flex-direction:column;gap:12px;min-width:0;padding:26px 22px;border-radius:var(--radius);background:linear-gradient(165deg,rgba(61,123,255,.16),rgba(255,255,255,.04));border:1px solid var(--line-strong);transition:transform .25s,box-shadow .25s,border-color .25s}
.dl-card:hover{transform:translateY(-4px);box-shadow:0 0 32px rgba(61,123,255,.28);border-color:rgba(47,224,208,.5)}
.dl-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:18px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--primary),#7a5cff);box-shadow:0 0 18px rgba(61,123,255,.5)}
.dl-card h3{font-size:16px}
.dl-card p{font-size:13px;color:var(--muted)}
.dl-card .btn{margin-top:6px;width:100%}
.dl-tip{margin-top:18px;font-size:12.5px;color:var(--muted)}

/* cta band */
.cta-band{padding:44px 38px;border-radius:22px;background:linear-gradient(130deg,rgba(61,123,255,.26),rgba(47,224,208,.14));border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;box-shadow:var(--shadow)}
.cta-band h2{font-size:clamp(19px,2.2vw,26px);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:14px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* footer */
.site-footer{border-top:1px solid var(--line);background:rgba(6,10,22,.86);padding:56px 0 26px;margin-top:20px}
.footer-top{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,1fr));gap:34px;padding-bottom:32px;border-bottom:1px solid rgba(120,160,255,.12)}
.footer-brand{min-width:0}
.footer-brand .brand-mark{margin-bottom:14px}
.footer-brand strong{display:block;font-size:15px;margin-bottom:12px;line-height:1.6}
.footer-brand p{font-size:13px;color:var(--muted);max-width:420px}
.footer-col{min-width:0;display:flex;flex-direction:column;gap:10px}
.footer-col h3{font-size:14px;margin-bottom:4px;color:#bcd0ff}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .22s,padding-left .22s}
.footer-col a:hover{color:#fff;padding-left:4px}
.friend-links{padding:26px 0;border-bottom:1px solid rgba(120,160,255,.12)}
.friend-title{font-size:14px;margin-bottom:14px;color:#bcd0ff}
.friend-list{display:flex;flex-wrap:wrap;gap:10px 18px;min-height:20px}
.friend-list a{font-size:13px;color:var(--muted);padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);transition:color .22s,border-color .22s,background .22s}
.friend-list a:hover{color:#fff;border-color:var(--line-strong);background:rgba(255,255,255,.09)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:12.5px;color:#7f90b5}

/* responsive */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:32px}
  .card-grid,.post-grid,.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .risk-wrap{grid-template-columns:minmax(0,1fr);gap:20px}
  .param-list{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:768px){
  .header-inner{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px}
  .site-nav{margin-left:0;order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
  .site-nav::-webkit-scrollbar{display:none}
  .site-nav a{flex:0 0 auto;padding:8px 14px;font-size:13.5px}
  .nav-cta{margin-left:auto;padding:9px 16px;font-size:13px}
  .hero{padding:38px 0 44px}
  .section{padding:52px 0}
  .card-grid,.post-grid,.dl-grid,.faq-grid{grid-template-columns:minmax(0,1fr)}
  .step-grid{grid-template-columns:minmax(0,1fr)}
  .param-row{grid-template-columns:minmax(0,1fr);gap:6px}
  .cta-band{padding:30px 22px}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .friend-links{padding:22px 0}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  .brand-text small{font-size:10px}
  .hero h1{font-size:23px}
  .hero-actions .btn{width:100%}
  .panel-row{flex-wrap:wrap;gap:4px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}