/* roulang page: index */
:root{
  --bg:#060910;
  --bg-2:#0B1424;
  --bg-3:#101C30;
  --surface:rgba(255,255,255,.045);
  --line:rgba(150,205,255,.14);
  --accent:#22E0A1;
  --accent-2:#FF6A2B;
  --info:#35C2FF;
  --text:#E9F2FF;
  --muted:#93A6C0;
  --muted-2:#61748F;
  --radius-card:18px;
  --radius-sm:12px;
  --shadow-card:0 18px 44px -26px rgba(0,0,0,.85);
  --shadow-glow:0 18px 46px -18px rgba(34,224,161,.45);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:
    radial-gradient(1100px 600px at 12% -8%, rgba(34,224,161,.10), transparent 60%),
    radial-gradient(900px 520px at 88% 4%, rgba(53,194,255,.09), transparent 62%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--accent);}
button,input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-family:ui-monospace,Consolas,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media(min-width:640px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:50;}
.brandbar{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-bottom:1px solid rgba(150,205,255,.08);}
@media(min-width:1024px){.brandbar{height:80px;}}
.logo{display:flex;align-items:baseline;gap:8px;font-weight:800;letter-spacing:-.01em;}
.logo-main{font-size:19px;color:var(--text);}
.logo-sub{font-size:12px;color:var(--muted);font-weight:500;letter-spacing:0;}
@media(min-width:1024px){.logo-main{font-size:22px;}}
.brand-actions{display:flex;align-items:center;gap:8px;}
@media(min-width:768px){.brand-actions{gap:18px;}}
.ghost-link{font-size:14px;color:var(--muted);transition:color .18s ease-out;min-height:44px;display:inline-flex;align-items:center;}
.ghost-link:hover{color:var(--text);}
.channelbar{position:sticky;top:0;z-index:40;height:48px;display:flex;align-items:center;
  background:rgba(6,9,16,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);}
.channel-scroll{display:flex;align-items:center;gap:22px;overflow-x:auto;scrollbar-width:none;white-space:nowrap;}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{position:relative;font-size:14px;color:var(--muted);padding:12px 2px;transition:color .18s ease-out;flex:0 0 auto;}
.channel-link:hover{color:var(--text);}
.channel-link.is-active{color:var(--accent);font-weight:600;}
.channel-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:3px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px rgba(34,224,161,.7);}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:transparent;
  color:var(--text);align-items:center;justify-content:center;}
@media(max-width:767px){.menu-toggle{display:inline-flex;}}
.drawer{display:none;padding:10px 0 18px;border-bottom:1px solid var(--line);background:rgba(11,20,36,.96);}
.drawer.open{display:block;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--muted);border-bottom:1px solid rgba(150,205,255,.08);}
.drawer a:last-child{border-bottom:0;}
.drawer a:hover{color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;
  border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;}
.btn-primary{background:linear-gradient(135deg,#22E0A1,#12B98A);color:#04211A;box-shadow:var(--shadow-glow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 52px -14px rgba(34,224,161,.6);color:#04211A;}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text);border-radius:14px;}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;border-radius:12px;}

/* ---------- 玻璃卡 ---------- */
.glass{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;}
.glass::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(180deg,rgba(255,255,255,.14),transparent);animation:breathe 2.8s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:.45}50%{opacity:.95}}
.card-hover:hover{transform:translateY(-2px);border-color:rgba(34,224,161,.55);}
.card-hover:hover h3{color:var(--accent);}
.solid{background:linear-gradient(180deg,var(--bg-2),var(--bg-3));border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);}

/* ---------- 通用文本 ---------- */
.h1{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.01em;}
.h2{font-size:clamp(23px,3.1vw,34px);font-weight:700;line-height:1.28;letter-spacing:-.01em;
  padding-left:14px;position:relative;}
.h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:.8em;border-radius:2px;background:var(--accent);}
.h3{font-size:20px;font-weight:600;line-height:1.5;}
.lead{color:var(--muted);font-size:15px;margin-top:12px;max-width:760px;}
.section{padding-top:56px;padding-bottom:56px;}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px;}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);
  border:1px solid rgba(34,224,161,.32);background:rgba(34,224,161,.08);border-radius:999px;padding:5px 14px;}
.badge{display:inline-flex;align-items:center;font-size:12px;color:var(--info);border:1px solid rgba(53,194,255,.32);
  background:rgba(53,194,255,.08);border-radius:999px;padding:3px 10px;white-space:nowrap;}
.badge-orange{color:var(--accent-2);border-color:rgba(255,106,43,.35);background:rgba(255,106,43,.10);}
.divider{height:1px;background:var(--line);}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(6,9,16,.94) 0%,rgba(6,9,16,.78) 46%,rgba(6,9,16,.55) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:160px;
  background:linear-gradient(180deg,transparent,var(--bg));}
.hero-inner{position:relative;z-index:2;padding-top:68px;padding-bottom:88px;width:100%;}
.hero p.sub{color:#BDD0E6;font-size:16px;margin-top:16px;max-width:640px;}
.statbar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:34px;max-width:760px;}
@media(min-width:768px){.statbar{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat{border:1px solid var(--line);background:rgba(16,28,48,.6);border-radius:14px;padding:14px 16px;}
.stat dt{font-size:12px;color:var(--muted-2);margin-bottom:6px;}
.stat dd{margin:0;font-size:18px;font-weight:700;color:var(--text);}

/* ---------- 步骤 ---------- */
.steprail{position:relative;display:grid;gap:18px;}
@media(min-width:1024px){.steprail{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.steprail::before{content:"";position:absolute;left:0;right:0;top:34px;height:1px;background:linear-gradient(90deg,rgba(34,224,161,.5),rgba(150,205,255,.12));}}
.step{padding:22px;}
.step .no{font-size:26px;font-weight:800;color:var(--accent);}
.step h3{margin-top:10px;}
.step p{color:var(--muted);font-size:14px;margin-top:8px;}

/* ---------- Bento ---------- */
.bento{display:grid;gap:18px;}
@media(min-width:1024px){.bento{grid-template-columns:repeat(2,minmax(0,1fr));}
.bento .wide{grid-column:span 2;}}
.bento-figure{position:relative;height:230px;overflow:hidden;border-radius:calc(var(--radius-card) - 1px) calc(var(--radius-card) - 1px) 0 0;}
.bento-figure img{width:100%;height:100%;object-fit:cover;}
.bento-body{padding:20px 22px 24px;}
.bento-body p{color:var(--muted);font-size:14px;margin-top:8px;}

/* ---------- 任务进度 ---------- */
.progress-track{height:8px;border-radius:999px;background:var(--bg-3);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#12B98A,#22E0A1);box-shadow:0 0 16px rgba(34,224,161,.5);}
.task-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 2px;border-bottom:1px solid rgba(150,205,255,.10);}
.task-row:last-child{border-bottom:0;}
.task-name{display:flex;align-items:center;gap:10px;font-size:15px;}
.dot{width:9px;height:9px;border-radius:999px;background:var(--muted-2);flex:0 0 auto;}
.dot.done{background:var(--accent);box-shadow:0 0 8px rgba(34,224,161,.85);}
.task-val{font-size:14px;color:var(--muted);}

/* ---------- 文章列表 ---------- */
.list-title{font-size:19px;font-weight:600;line-height:1.5;transition:color .18s ease-out;}
.list-excerpt{color:var(--muted);font-size:14px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.list-meta{display:flex;align-items:center;gap:12px;color:var(--muted-2);font-size:13px;margin-top:16px;}
.arrow{color:var(--accent);font-size:14px;font-weight:600;}
.empty-box{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:260px;
  text-align:center;padding:32px;}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:0 18px;margin-bottom:10px;
  transition:border-color .18s ease-out;}
.faq-item[open]{border-color:rgba(34,224,161,.45);}
.faq-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 0;font-size:16px;font-weight:600;color:var(--text);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;color:var(--accent);transition:transform .18s ease-out;line-height:1;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{color:var(--muted);font-size:14px;padding-bottom:18px;}

/* ---------- CTA 条 ---------- */
.cta-band{border:1px solid rgba(34,224,161,.28);border-radius:22px;padding:26px;
  background:linear-gradient(120deg,rgba(34,224,161,.14),rgba(255,106,43,.08) 58%,rgba(53,194,255,.10));}
@media(min-width:1024px){.cta-band{padding:36px 40px;}}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;border-top:1px solid transparent;position:relative;
  background:linear-gradient(180deg,rgba(11,20,36,.6),rgba(6,9,16,.95));}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,161,.7),rgba(53,194,255,.4),transparent);}
.footer-grid{display:grid;gap:32px;padding:52px 0 28px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-title{font-size:13px;color:var(--muted-2);letter-spacing:.04em;margin-bottom:14px;}
.footer-list a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color .18s ease-out;}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(150,205,255,.10);padding:18px 0 30px;color:var(--muted-2);font-size:13px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#060910;
  --bg-2:#0B1424;
  --bg-3:#101C30;
  --surface:rgba(255,255,255,.045);
  --line:rgba(150,205,255,.14);
  --accent:#22E0A1;
  --accent-2:#FF6A2B;
  --info:#35C2FF;
  --text:#E9F2FF;
  --muted:#93A6C0;
  --muted-2:#61748F;
  --radius-card:18px;
  --radius-inner:12px;
  --shadow-card:0 18px 44px -26px rgba(0,0,0,.85);
  --shadow-glow:0 18px 46px -18px rgba(34,224,161,.45);
  --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 82% -12%, rgba(34,224,161,.10), transparent 62%),
    radial-gradient(880px 520px at 6% 8%, rgba(53,194,255,.08), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--text);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

/* ---------- Header ---------- */
.site-header{position:relative;z-index:50}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}
@media(min-width:1024px){.brand-row{height:80px}}
.logo{display:inline-flex;align-items:baseline;gap:9px;flex:0 0 auto}
.logo-main{font-size:22px;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.logo-sub{font-size:12px;color:var(--muted);letter-spacing:.04em}
.logo:hover .logo-main{color:var(--accent)}
.brand-actions{display:flex;align-items:center;gap:14px}
.text-link{font-size:14px;color:var(--muted);min-height:44px;display:inline-flex;align-items:center}
.text-link:hover{color:var(--text)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  background:linear-gradient(135deg,#22E0A1 0%,#14C4A6 100%);
  color:#04211A;font-weight:700;font-size:15px;
  box-shadow:var(--shadow-glow);
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn-primary:hover{color:#04211A;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 18px 46px -14px rgba(34,224,161,.62)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:14px;
  border:1px solid var(--line);color:var(--text);font-weight:600;font-size:15px;
  background:transparent;transition:border-color .18s ease,transform .18s ease,color .18s ease;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.channelbar{position:sticky;top:0;z-index:40;background:rgba(6,9,16,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.channel-scroll{display:flex;align-items:center;gap:6px;height:50px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;
  min-height:44px;padding:0 12px;font-size:14px;color:var(--muted);
  border-radius:999px;white-space:nowrap;transition:color .18s ease,background .18s ease;
}
.channel-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.channel-link.is-active{color:var(--accent)}
.channel-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:5px;height:3px;border-radius:2px;background:var(--accent);box-shadow:0 0 12px rgba(34,224,161,.7)}
.mobile-drawer{display:none;border-bottom:1px solid var(--line);background:rgba(11,20,36,.96)}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{display:block;padding:14px 4px;border-bottom:1px solid rgba(150,205,255,.10);font-size:15px;color:var(--muted)}
.mobile-drawer a:hover{color:var(--accent)}
@media(max-width:767px){
  .brand-actions .text-link,.brand-actions .btn-primary{display:none}
  .menu-toggle{display:inline-flex}
}

/* ---------- Generic ---------- */
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{margin-bottom:26px}
.section-head h2{
  font-size:clamp(23px,3.1vw,34px);font-weight:700;letter-spacing:-.01em;
  display:flex;align-items:center;gap:12px;line-height:1.2;
}
.section-head h2::before{content:"";width:4px;height:.8em;border-radius:2px;background:var(--accent);box-shadow:0 0 14px rgba(34,224,161,.6);flex:0 0 auto}
.section-head .sub{margin-top:12px;color:var(--muted);font-size:14px}
.glass{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  background-image:linear-gradient(180deg,rgba(255,255,255,.10),transparent 42%);
  background-repeat:no-repeat;background-size:100% 68px;
  transition:border-color .18s ease,transform .18s ease;
}
.glass:hover{border-color:rgba(34,224,161,.55);transform:translateY(-2px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:rgba(34,224,161,.12);color:var(--accent);border:1px solid rgba(34,224,161,.28);
}
.badge.signal{background:rgba(255,106,43,.14);color:#FFB08A;border-color:rgba(255,106,43,.32)}
.badge.info{background:rgba(53,194,255,.12);color:var(--info);border-color:rgba(53,194,255,.28)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- Article hero ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted-2);padding-top:26px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:var(--muted-2)}
.crumb .now{color:var(--muted);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero{padding-bottom:30px}
.article-hero h1{
  font-size:clamp(28px,4.4vw,46px);font-weight:800;letter-spacing:-.01em;line-height:1.18;
  margin-top:18px;max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13.5px;color:var(--muted)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--muted-2)}
.hero-rule{margin-top:26px;height:1px;background:linear-gradient(90deg,rgba(34,224,161,.55),rgba(150,205,255,.10) 60%,transparent)}

/* ---------- Article layout ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px}}
.article-panel{padding:24px 20px}
@media(min-width:768px){.article-panel{padding:34px 34px 38px}}
.article-content{max-width:760px;font-size:17px;line-height:1.95;color:#DCE7F7}
.article-content > * + *{margin-top:18px}
.article-content h2{
  font-size:clamp(21px,2.5vw,27px);font-weight:700;margin-top:40px;line-height:1.3;
  padding-left:14px;position:relative;color:var(--text);
}
.article-content h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:.86em;border-radius:2px;background:var(--accent);box-shadow:0 0 12px rgba(34,224,161,.55)}
.article-content h3{font-size:20px;font-weight:600;margin-top:30px;color:var(--text)}
.article-content h4{font-size:17px;font-weight:600;margin-top:24px;color:var(--text)}
.article-content blockquote{
  margin:24px 0;padding:14px 18px;border-left:3px solid var(--accent);
  background:rgba(34,224,161,.06);border-radius:0 12px 12px 0;color:#CFE3DA;
}
.article-content ul,.article-content ol{padding-left:22px;margin:18px 0}
.article-content li{margin:8px 0}
.article-content ul{list-style:none;padding-left:20px}
.article-content ul > li{position:relative;padding-left:16px}
.article-content ul > li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--accent)}
.article-content ol{list-style:decimal;color:#DCE7F7}
.article-content img{border-radius:14px;margin:22px 0}
.article-content figure{margin:24px 0}
.article-content figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.article-content th,.article-content td{padding:11px 14px;text-align:left;border-bottom:1px solid rgba(150,205,255,.10)}
.article-content th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.article-content tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.article-content a{color:var(--info);text-decoration:underline;text-decoration-color:rgba(53,194,255,.4)}
.article-content a:hover{color:var(--accent);text-decoration-color:var(--accent)}
.article-content strong{color:#FFFFFF;font-weight:700}
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:rgba(255,255,255,.03);
}
.empty-state p{color:var(--muted);margin-bottom:18px;font-size:16px}

/* ---------- Sidebar ---------- */
.side-card{padding:22px;border-radius:var(--radius-card);margin-bottom:18px}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:12px}
.side-card p{font-size:14px;color:var(--muted);line-height:1.8}
.side-sticky{position:sticky;top:74px}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{border-top:1px solid rgba(150,205,255,.10);padding:11px 0;font-size:14px}
.side-list li:first-child{border-top:0}
.side-list a{color:var(--muted)}
.side-list a:hover{color:var(--accent)}
.side-cta{display:flex;flex-direction:column;gap:10px;margin-top:16px}

/* ---------- Tags / back ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;min-height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);font-size:13px;color:var(--muted)}
.tag:hover{border-color:var(--accent);color:var(--accent)}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post-card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-card)}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-3)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,9,16,0) 40%,rgba(6,9,16,.72))}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:18px;font-weight:600;line-height:1.45}
.post-card:hover h3{color:var(--accent)}
.post-card .desc{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted-2);padding-top:10px;border-top:1px solid rgba(150,205,255,.10)}
.card-link{position:absolute;inset:0;z-index:2}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-inner);background:rgba(255,255,255,.03);margin-bottom:10px;overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:15px 18px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent);font-size:20px;line-height:1;transition:transform .18s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open]{border-color:rgba(34,224,161,.5)}
.faq-item .answer{padding:0 18px 16px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--radius-card);border:1px solid rgba(34,224,161,.32);
  background:linear-gradient(120deg,rgba(34,224,161,.16),rgba(11,20,36,.9) 62%);
  padding:28px 24px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:700}
.cta-band p{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,20,36,.5),rgba(6,9,16,.95));position:relative}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,224,161,.55),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-list a{color:var(--muted);font-size:14px}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(150,205,255,.10);padding:18px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted-2);
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg:#060910;
  --bg-2:#0B1424;
  --bg-3:#101C30;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.075);
  --line:rgba(150,205,255,.14);
  --line-strong:rgba(34,224,161,.45);
  --accent:#22E0A1;
  --accent-2:#FF6A2B;
  --info:#35C2FF;
  --text:#E9F2FF;
  --muted:#93A6C0;
  --muted-2:#61748F;
  --r-lg:18px;
  --r-md:12px;
  --shadow-card:0 18px 44px -26px rgba(0,0,0,.85);
  --shadow-glow:0 18px 46px -18px rgba(34,224,161,.45);
  --mono:ui-monospace,Consolas,"Courier New",monospace;
}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
html body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 460px at 12% -6%,rgba(34,224,161,.10),transparent 62%),
    radial-gradient(760px 420px at 92% 2%,rgba(53,194,255,.08),transparent 60%);
  z-index:0;
}
.site-header,.page-main,.site-footer{position:relative;z-index:1;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
img{max-width:100%;display:block;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:640px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- Header ---------- */
.site-header{
  background:linear-gradient(180deg,rgba(11,20,36,.92),rgba(6,9,16,.62));
  border-bottom:1px solid rgba(150,205,255,.08);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
@media(min-width:1024px){.brand-row{height:80px;}}
.logo{display:inline-flex;flex-direction:column;gap:2px;line-height:1.06;}
.logo-main{font-size:21px;font-weight:800;letter-spacing:-.02em;color:var(--text);transition:color .18s ease-out;}
.logo:hover .logo-main{color:var(--accent);}
.logo-sub{font-size:12px;color:var(--muted);letter-spacing:.04em;}
.brand-actions{display:flex;align-items:center;gap:14px;}
.text-link{font-size:14px;color:var(--muted);padding:6px 2px;border-bottom:1px solid transparent;}
.text-link:hover{color:var(--text);border-bottom-color:var(--accent);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  transition:border-color .18s ease-out,color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
@media(min-width:768px){.nav-toggle{display:none;}}
@media(max-width:767px){
  .brand-actions .text-link,
  .brand-actions .btn-primary{display:none;}
}
.mobile-drawer{display:none;padding:4px 0 18px;border-top:1px solid rgba(150,205,255,.10);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer-list{display:grid;gap:6px;padding-top:8px;}
.mobile-drawer-list a{
  display:flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--muted);font-size:14px;
}
.mobile-drawer-list a:hover{color:var(--accent);border-color:var(--line-strong);}

/* ---------- Channel bar ---------- */
.channelbar{
  position:sticky;top:0;z-index:40;
  background:rgba(6,9,16,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.channel-scroll{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;
  display:inline-flex;align-items:center;height:36px;
  padding:0 13px;border-radius:999px;
  font-size:14px;color:var(--muted);white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out;
}
.channel-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.channel-link.is-active{color:var(--accent);}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;
  border-radius:3px;background:var(--accent);
  box-shadow:0 0 14px rgba(34,224,161,.7);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;white-space:nowrap;border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,#22E0A1,#0FC7B2);
  color:#04211A;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 46px -14px rgba(34,224,161,.62);filter:brightness(1.06);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;padding:48px 0 58px;
  background-image:
    linear-gradient(180deg,rgba(6,9,16,.80) 0%,rgba(6,9,16,.92) 58%,#060910 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
@media(min-width:1024px){.page-hero{padding:78px 0 86px;}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--muted-2);}
.breadcrumb .current{color:var(--muted-2);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
  border:1px solid rgba(34,224,161,.35);background:rgba(34,224,161,.09);
  color:var(--accent);font-size:13px;
}
.hero-title{
  font-size:clamp(30px,5vw,50px);font-weight:800;
  line-height:1.15;letter-spacing:-.01em;
  margin:0 0 16px;max-width:900px;
}
.hero-sub{color:var(--muted);font-size:17px;line-height:1.8;max-width:700px;margin:0 0 28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.metric-row{display:grid;gap:12px;grid-template-columns:1fr;max-width:860px;}
@media(min-width:640px){.metric-row{grid-template-columns:repeat(3,1fr);}}
.metric{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:14px 16px;
}
.metric::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(180deg,rgba(255,255,255,.14),transparent);}
.metric-k{font-size:12px;color:var(--muted-2);letter-spacing:.06em;}
.metric-v{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:18px;font-weight:700;color:var(--accent);margin-top:4px;}

/* ---------- Sections ---------- */
.section{padding:56px 0;}
@media(min-width:1024px){.section{padding:92px 0;}}
.section-tight{padding:44px 0;}
@media(min-width:1024px){.section-tight{padding:64px 0;}}
.section-title{
  display:flex;align-items:center;gap:12px;
  font-size:clamp(22px,3.1vw,32px);font-weight:700;
  line-height:1.25;margin:0 0 12px;
}
.section-title::before{
  content:"";width:4px;height:.8em;flex:0 0 auto;
  border-radius:2px;background:var(--accent);
  box-shadow:0 0 14px rgba(34,224,161,.55);
}
.section-lead{color:var(--muted);font-size:15px;margin:0 0 32px;max-width:720px;}

/* ---------- Cards ---------- */
.card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(180deg,rgba(255,255,255,.14),transparent);
  animation:breathe 2.8s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.5;}50%{opacity:1;}}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 22px 50px -26px rgba(34,224,161,.35);}
.card h3{font-size:19px;font-weight:600;line-height:1.45;margin:0 0 8px;}
.card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0;}
.quick-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:640px){.quick-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.quick-grid{grid-template-columns:repeat(4,1fr);}}
.quick-num{font-family:var(--mono);font-size:13px;letter-spacing:.08em;color:var(--accent-2);margin-bottom:10px;display:block;}

/* ---------- Split content ---------- */
.split{display:grid;gap:24px;align-items:center;margin-bottom:44px;}
.split:last-child{margin-bottom:0;}
@media(min-width:1024px){
  .split{grid-template-columns:4fr 8fr;gap:44px;margin-bottom:64px;}
  .split-rev{grid-template-columns:8fr 4fr;}
}
.figure{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--bg-2);box-shadow:var(--shadow-card);
}
.figure img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .35s ease-out;}
.figure:hover img{transform:scale(1.03);}
.figure-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:10px 14px;font-size:12px;color:var(--muted);
  background:linear-gradient(180deg,transparent,rgba(6,9,16,.94));
}
.split h3{font-size:clamp(20px,2.4vw,24px);font-weight:700;line-height:1.4;margin:0 0 12px;}
.split p{color:var(--muted);font-size:15px;line-height:1.9;margin:0 0 14px;}
.split p:last-of-type{margin-bottom:0;}
.point-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px;}
.point-list li{position:relative;padding-left:20px;font-size:14px;color:var(--muted);}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.step-inline{list-style:none;counter-reset:si;padding:0;margin:16px 0 0;display:grid;gap:10px;}
.step-inline li{position:relative;padding-left:34px;font-size:14px;color:var(--muted);}
.step-inline li::before{
  counter-increment:si;content:counter(si,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-family:var(--mono);font-size:12px;color:var(--accent);
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(34,224,161,.35);border-radius:999px;background:rgba(34,224,161,.08);
}

/* ---------- Spec table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--r-md);}
.spec-table{
  width:100%;min-width:520px;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;font-size:15px;
}
.spec-table th,.spec-table td{padding:14px 18px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(150,205,255,.10);}
.spec-table thead th{
  background:rgba(16,28,48,.92);color:var(--text);
  font-weight:600;font-size:14px;letter-spacing:.02em;
}
.spec-table tbody tr:nth-child(odd){background:rgba(255,255,255,.038);}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.012);}
.spec-table tbody tr:hover{background:rgba(34,224,161,.075);}
.spec-table tbody tr:last-child td{border-bottom:none;}
.spec-table tbody td:first-child{color:var(--muted);width:38%;}
.spec-table tbody td:last-child{color:var(--text);}
.spec-note{margin-top:14px;font-size:13px;color:var(--muted-2);}

/* ---------- Step rail ---------- */
.steps{display:grid;gap:16px;grid-template-columns:1fr;position:relative;}
@media(min-width:768px){
  .steps{grid-template-columns:repeat(4,1fr);gap:18px;}
  .steps::before{
    content:"";position:absolute;left:8px;right:8px;top:34px;height:1px;
    background:linear-gradient(90deg,rgba(34,224,161,.55),rgba(150,205,255,.16));
  }
}
.step{
  position:relative;z-index:1;padding:20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
@media(min-width:768px){.step{background:var(--bg-2);}}
.step:hover{transform:translateY(-2px);border-color:var(--line-strong);}
.step-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;margin-bottom:12px;border-radius:999px;
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent);
  border:1px solid rgba(34,224,161,.45);background:rgba(34,224,161,.10);
}
.step h3{font-size:17px;font-weight:600;margin:0 0 8px;}
.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.72;}

/* ---------- Master / detail ---------- */
.master{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:1024px){.master{grid-template-columns:8fr 4fr;gap:26px;align-items:start;}}
.task-list{display:grid;border-top:1px solid var(--line);}
.task{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 6px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out,padding-left .18s ease-out;
}
.task:hover{background:rgba(34,224,161,.055);padding-left:12px;}
.task-name{display:flex;align-items:center;gap:12px;font-size:15px;}
.dot{
  width:8px;height:8px;flex:0 0 auto;border-radius:999px;
  background:var(--accent);box-shadow:0 0 0 6px rgba(34,224,161,.14);
}
.task-val{font-family:var(--mono);font-size:13px;color:var(--muted);white-space:nowrap;}
.aside-card{
  background:linear-gradient(160deg,rgba(34,224,161,.10),rgba(11,20,36,.92) 52%,rgba(53,194,255,.08));
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-card);
}
.aside-card h3{font-size:18px;font-weight:600;margin:0 0 14px;}
.aside-card ul{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.aside-card li{padding-left:18px;position:relative;font-size:14px;color:var(--muted);}
.aside-card li::before{
  content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;
  border-radius:999px;background:var(--accent-2);
}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:10px;}
.faq details{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:0 18px;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.faq details:hover{background:var(--surface-2);}
.faq details[open]{border-color:var(--line-strong);}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;font-size:16px;font-weight:600;
}
.faq summary::-webkit-details-marker{display:none;}
.faq .icon{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .18s ease-out;}
.faq .icon::before,.faq .icon::after{content:"";position:absolute;background:var(--accent);border-radius:2px;}
.faq .icon::before{left:0;right:0;top:8px;height:2px;}
.faq .icon::after{top:0;bottom:0;left:8px;width:2px;transition:opacity .18s ease-out,transform .18s ease-out;}
.faq details[open] .icon::after{opacity:0;transform:scaleY(.2);}
.faq-body{padding:0 0 18px;color:var(--muted);font-size:14px;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:24px;
  padding:30px 24px;
  background:linear-gradient(120deg,rgba(34,224,161,.13),rgba(11,20,36,.92) 46%,rgba(53,194,255,.10));
  box-shadow:var(--shadow-card);
}
@media(min-width:1024px){.cta-band{padding:44px 48px;}}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(255,106,43,.22),transparent 66%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.8vw,30px);font-weight:700;line-height:1.35;margin:0 0 10px;}
.cta-band p{color:var(--muted);font-size:15px;margin:0;max-width:560px;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:24px;padding-top:44px;
  background:linear-gradient(180deg,rgba(11,20,36,.62),rgba(6,9,16,1));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,161,.6),transparent);
}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-title{font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{font-size:14px;color:var(--muted);}
.footer-list a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:36px;padding:18px 0 26px;
  border-top:1px solid rgba(150,205,255,.10);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:13px;color:var(--muted-2);
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg:#060910;
  --bg-2:#0B1424;
  --bg-3:#101C30;
  --surface:rgba(255,255,255,.045);
  --line:rgba(150,205,255,.14);
  --accent:#22E0A1;
  --accent-2:#FF6A2B;
  --info:#35C2FF;
  --text:#E9F2FF;
  --muted:#93A6C0;
  --muted-2:#61748F;
  --radius:18px;
  --radius-sm:12px;
  --shadow-card:0 18px 44px -26px rgba(0,0,0,.85);
  --shadow-glow:0 18px 46px -18px rgba(34,224,161,.45);
}
*,*::before,*::after{box-sizing:border-box}
html body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 420px at 12% -6%, rgba(34,224,161,.10), transparent 62%),
    radial-gradient(760px 420px at 96% 4%, rgba(53,194,255,.08), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:640px){.container{padding:0 24px}}
@media(min-width:1024px){.container{padding:0 32px}}
.mono{font-family:ui-monospace,Consolas,"Courier New",monospace;font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:relative;z-index:50}
.brandbar{background:linear-gradient(180deg,rgba(6,9,16,.98),rgba(6,9,16,.78));border-bottom:1px solid var(--line)}
.brandbar-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:14px}
@media(min-width:1024px){.brandbar-inner{height:80px}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#2BF0AC,#0F9A72);box-shadow:0 14px 32px -14px rgba(34,224,161,.75);position:relative;flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;left:9px;top:12px;width:16px;height:3px;border-radius:2px;background:#04211A;box-shadow:0 6px 0 #04211A}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-main{font-size:19px;font-weight:800;letter-spacing:.02em}
.logo-sub{font-size:12px;color:var(--muted)}
.brand-actions{display:flex;align-items:center;gap:10px}
.text-link{display:none;font-size:14px;color:var(--muted);padding:8px 6px;transition:color .18s}
.text-link:hover{color:var(--accent)}
@media(min-width:1024px){.text-link{display:inline-flex}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s,border-color .18s,color .18s,filter .18s}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,#2BF0AC,#12B583);color:#04211A;box-shadow:var(--shadow-glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 22px 50px -14px rgba(34,224,161,.55)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);border-radius:14px}
.btn-ghost:hover{border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.channel-link:focus-visible,.text-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}

.menu-toggle{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;font-size:14px;font-weight:600;color:var(--text);background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:12px;cursor:pointer;transition:border-color .18s,color .18s}
.menu-toggle:hover{border-color:var(--accent);color:var(--accent)}
@media(min-width:1024px){.menu-toggle{display:none}}

.channelbar{position:sticky;top:0;z-index:40;background:rgba(6,9,16,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.channel-scroll{display:flex;align-items:center;gap:4px;height:50px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{position:relative;flex:0 0 auto;height:50px;display:inline-flex;align-items:center;padding:0 13px;font-size:14px;color:var(--muted);white-space:nowrap;transition:color .18s}
.channel-link:hover{color:var(--text)}
.channel-link.is-active{color:var(--accent);font-weight:600}
.channel-link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:5px;height:3px;border-radius:999px;background:var(--accent);box-shadow:0 0 12px rgba(34,224,161,.85)}

.mobile-drawer{display:none;border-bottom:1px solid var(--line);background:rgba(11,20,36,.97);backdrop-filter:blur(14px)}
.mobile-drawer.open{display:block}
.mobile-drawer .container{padding-top:10px;padding-bottom:14px}
.mobile-drawer a{display:block;padding:12px 0;font-size:15px;color:var(--muted);border-bottom:1px solid rgba(150,205,255,.08)}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.is-active{color:var(--accent);font-weight:600}

/* ---------- sections ---------- */
.sec{padding:56px 0}
@media(min-width:1024px){.sec{padding:96px 0}}
.sec-tight{padding:44px 0}
@media(min-width:1024px){.sec-tight{padding:64px 0}}
.sec-head{max-width:760px}
.sec-title{position:relative;padding-left:16px;font-size:clamp(23px,3.1vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.005em}
.sec-title::before{content:"";position:absolute;left:0;top:.36em;width:4px;height:.8em;border-radius:2px;background:var(--accent);box-shadow:0 0 14px rgba(34,224,161,.75)}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15px}
.card-title{font-size:19px;font-weight:600;line-height:1.5}
.card-text{color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- glass & cards ---------- */
.glass{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);overflow:hidden}
.glass::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(180deg,rgba(255,255,255,.16),transparent);pointer-events:none}
@media(prefers-reduced-motion:no-preference){
  .glass::before{animation:sheen 2.8s ease-in-out infinite}
  @keyframes sheen{0%,100%{opacity:.55}50%{opacity:1}}
}
.card-hover{transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out}
.card-hover:hover{transform:translateY(-2px);border-color:rgba(34,224,161,.55);box-shadow:0 26px 52px -28px rgba(0,0,0,.95)}
.card-hover:hover .card-title{color:var(--accent)}
.pad{padding:22px}
@media(min-width:1024px){.pad{padding:26px}}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.04)}
.badge-accent{color:#04211A;background:linear-gradient(135deg,#2BF0AC,#12B583);border-color:transparent}
.badge-warn{color:var(--accent-2);background:rgba(255,106,43,.10);border-color:rgba(255,106,43,.38)}
.badge-info{color:var(--info);background:rgba(53,194,255,.10);border-color:rgba(53,194,255,.32)}

.thumb{border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg-3)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card-hover:hover .thumb img{transform:scale(1.03)}
.meta-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted-2)}
.meta-row .arrow{color:var(--accent);font-weight:600}

/* ---------- hero ---------- */
.hero{position:relative;display:flex;align-items:center;padding:56px 0 64px;background-image:linear-gradient(180deg,rgba(6,9,16,.80),rgba(6,9,16,.94)),url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
@media(min-width:1024px){.hero{padding:80px 0 92px;min-height:62vh}}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(180deg,rgba(6,9,16,0),var(--bg));pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:860px}
.hero-title{margin-top:16px;font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.01em}
.hero-sub{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.9;max-width:640px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:34px}
@media(min-width:640px){.stat-strip{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px}
.stat-label{font-size:12px;color:var(--muted-2);letter-spacing:.04em}
.stat-value{margin-top:6px;font-size:18px;font-weight:700;color:var(--text)}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,rgba(34,224,161,.85),rgba(53,194,255,.22))}
.tl-item{position:relative;margin-bottom:16px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{content:"";position:absolute;left:-29px;top:26px;width:12px;height:12px;border-radius:999px;background:var(--bg-3);border:2px solid var(--accent);box-shadow:0 0 10px rgba(34,224,161,.65)}
.tl-num{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.14em}

/* ---------- progress & task rows ---------- */
.progress{height:8px;border-radius:999px;background:var(--bg-3);overflow:hidden}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#12B583,#2BF0AC)}
.task-row{display:flex;align-items:center;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.task-row:last-child{border-bottom:0}
.dot{width:9px;height:9px;border-radius:999px;background:var(--muted-2);flex:0 0 auto}
.dot-on{background:var(--accent);box-shadow:0 0 8px rgba(34,224,161,.85)}
.task-name{font-size:14px;color:var(--text);flex:1 1 auto}
.task-val{font-size:13px;color:var(--muted);flex:0 0 auto}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border-radius:14px}
.rule-table{width:100%;min-width:560px;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14px}
.rule-table th{background:rgba(16,28,48,.92);color:var(--text);font-weight:600;text-align:left;padding:13px 16px;font-size:13px;letter-spacing:.03em}
.rule-table td{padding:13px 16px;color:var(--muted);border-top:1px solid var(--line)}
.rule-table tbody tr:nth-child(even){background:rgba(255,255,255,.028)}
.rule-table td strong{color:var(--text);font-weight:600}

/* ---------- faq ---------- */
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;transition:border-color .18s ease-out}
.faq-item[open]{border-color:rgba(34,224,161,.55)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;color:var(--text)}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";font-size:20px;line-height:1;color:var(--accent);transition:transform .18s ease-out}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:14px 20px 18px;border-top:1px solid var(--line);color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- cta ---------- */
.cta-bar{position:relative;border-radius:24px;border:1px solid rgba(34,224,161,.3);background:radial-gradient(620px 220px at 10% 0%,rgba(34,224,161,.20),transparent 62%),linear-gradient(180deg,var(--bg-3),var(--bg-2));padding:30px;overflow:hidden;box-shadow:var(--shadow-card)}
@media(min-width:1024px){.cta-bar{padding:40px}}

/* ---------- footer ---------- */
.site-footer{margin-top:24px;padding:56px 0 26px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(11,20,36,.68),rgba(6,9,16,.96));position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(34,224,161,.55),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{color:var(--muted);font-size:14px;transition:color .18s}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:36px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted-2);font-size:13px}