/* roulang page: index */
:root{--bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);--panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;--mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;--line:rgba(126,190,255,.22);--radius:22px;--shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 80%)}a{color:inherit;text-decoration:none}img{display:block;width:100%;object-fit:cover}button{font:inherit;color:inherit;border:0;cursor:pointer}.container{width:min(var(--max),calc(100% - 44px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(7,20,38,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav{height:78px;display:flex;align-items:center;gap:28px}.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}.brand span{color:var(--cyan)}.nav-links{display:flex;gap:5px;align-items:center;margin-left:auto}.nav-links a,.location{padding:10px 13px;border-radius:12px;color:var(--muted);font-size:.9rem;transition:.25s}.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}.location{display:flex;gap:7px;align-items:center;border:1px solid var(--line)}.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:13px;padding:13px 19px;font-weight:750;transition:.25s;border:1px solid rgba(53,216,255,.65)}.nav-cta,.btn-primary{background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;box-shadow:0 0 28px rgba(53,216,255,.25)}.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}.btn:active{transform:translateY(0)}.btn:focus-visible,.nav a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:3px}.menu-toggle{display:none;background:transparent;font-size:1.5rem}.hero{min-height:580px;padding:82px 0 70px;position:relative;background:linear-gradient(90deg,rgba(7,20,38,.98) 12%,rgba(7,20,38,.7),rgba(7,20,38,.3)),url('/assets/images/backpic/back-1.webp') center/cover}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}.eyebrow,.badge{display:inline-flex;color:var(--cyan);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.hero h1{font-size:clamp(2.8rem,6vw,5.5rem);line-height:1.03;letter-spacing:-.07em;max-width:720px;margin:18px 0}.hero p{font-size:1.1rem;color:var(--muted);max-width:650px}.actions{display:flex;gap:13px;flex-wrap:wrap;margin:30px 0}.trust{display:flex;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:.84rem}.trust strong{display:block;color:var(--text);font-size:1rem}.creator-card{position:relative;max-width:420px;margin-left:auto;padding:25px;border:1px solid var(--line);border-radius:28px;background:rgba(11,30,54,.7);box-shadow:var(--shadow);backdrop-filter:blur(14px)}.creator-card:after{content:"";position:absolute;inset:-40px -20px auto auto;width:170px;height:170px;background:var(--violet);filter:blur(80px);opacity:.25;z-index:-1}.creator-head{display:flex;align-items:center;gap:15px}.avatar{width:58px;height:58px;border-radius:18px;object-fit:cover;border:2px solid var(--cyan)}.creator-head small{color:var(--muted)}.preview{margin:25px 0 16px;border-radius:20px;overflow:hidden;aspect-ratio:1.15;background:#102a49}.preview img{height:100%}.mini-row{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:15px;color:var(--muted);font-size:.84rem}.mini-row b{color:var(--mint)}main{position:relative}section{padding:88px 0}.section-head{max-width:710px;margin-bottom:35px}.section-head h2{font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.1;letter-spacing:-.045em;margin:10px 0 14px}.section-head p{color:var(--muted)}.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(15px)}.problem-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.problem{padding:25px;min-height:180px}.problem:nth-child(2){transform:translateY(20px)}.number{color:var(--cyan);font-size:1.8rem;font-weight:850}.problem h3,.feature h3,.scenario h3{font-size:1.1rem;margin:10px 0 7px}.problem p,.feature p,.scenario p{color:var(--muted);font-size:.92rem}.dashboard{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;padding:22px}.dash-main{padding:28px;background:rgba(4,18,34,.45);border-radius:17px}.dash-main h3{font-size:1.5rem}.dash-main p{color:var(--muted);margin:9px 0 24px}.dash-side{display:grid;gap:12px}.status{padding:19px;border-radius:16px;background:var(--panel2);border:1px solid var(--line)}.status small,.metric small{color:var(--muted);display:block}.status b{display:block;margin-top:5px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}.step{position:relative;padding:27px 20px 10px;border-right:1px solid var(--line)}.step:last-child{border:0}.step:before{content:"";position:absolute;top:-8px;left:20px;width:15px;height:15px;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}.step strong{color:var(--cyan);font-size:.8rem}.step h3{margin:9px 0;font-size:1.05rem}.step p{color:var(--muted);font-size:.88rem}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:35px;align-items:center}.media-frame{border-radius:24px;overflow:hidden;border:1px solid var(--line);min-height:330px;background:var(--bg2)}.media-frame img{height:100%}.checklist{padding:27px}.checklist li{list-style:none;padding:14px 0;border-bottom:1px solid var(--line);color:var(--muted)}.checklist li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}.warning{margin-top:18px;padding:14px 16px;border-left:3px solid #ffc86b;background:rgba(255,200,107,.08);color:#e8d4a9;font-size:.86rem}.metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.metric{padding:22px 18px}.metric b{display:block;font-size:1.7rem;color:var(--cyan);margin:5px 0}.metric em{font-style:normal;color:var(--mint);font-size:.75rem}.journey{display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden}.journey img{height:100%;min-height:310px}.journey-copy{padding:35px}.journey-copy li{list-style:none;padding:13px 0;border-bottom:1px solid var(--line);color:var(--muted)}.journey-copy li b{color:var(--text);margin-right:8px}.quotes{display:flex;gap:16px;overflow:auto;padding-bottom:12px}.quote{min-width:310px;padding:25px}.quote p{font-size:1.05rem;margin:15px 0;color:#dbe9f8}.quote footer{color:var(--muted);font-size:.82rem}.scenarios{display:grid;grid-template-columns:1fr 1.5fr;gap:25px}.scenario-list{display:grid;gap:10px}.scenario{padding:20px;display:flex;gap:16px}.scenario .number{font-size:1.2rem}.editorial{display:grid;grid-template-columns:1fr .75fr;gap:20px}.featured{overflow:hidden}.featured img{height:220px}.featured div{padding:25px}.featured h3{font-size:1.5rem;margin:10px 0}.featured p,.update p{color:var(--muted);font-size:.9rem}.update-list{display:grid;gap:10px}.update{padding:18px 20px;display:grid;grid-template-columns:85px 1fr auto;gap:15px;align-items:center}.update time{color:var(--cyan);font-size:.75rem}.update h3{font-size:1rem}.update a{color:var(--cyan);font-size:.8rem}.empty{padding:25px;color:var(--muted)}.analytics{padding:30px;display:grid;grid-template-columns:1fr 1fr;gap:40px;background:linear-gradient(135deg,rgba(17,43,73,.95),rgba(14,34,67,.7))}.bars{display:flex;align-items:end;gap:10px;height:155px;border-bottom:1px solid var(--line)}.bars i{display:block;flex:1;background:linear-gradient(var(--cyan),var(--violet));border-radius:7px 7px 0 0}.progress{margin:14px 0}.progress label{display:flex;justify-content:space-between;color:var(--muted);font-size:.84rem}.track{height:7px;background:rgba(255,255,255,.1);border-radius:9px;margin-top:7px}.track span{display:block;height:100%;background:var(--mint);border-radius:inherit}.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}.faq-item{border-bottom:1px solid var(--line)}.faq-item button{width:100%;padding:19px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;font-weight:700}.faq-item button span{color:var(--cyan);font-size:1.3rem}.faq-answer{display:none;color:var(--muted);padding:0 30px 18px 0;font-size:.92rem}.faq-item.open .faq-answer{display:block}.cta{padding:48px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));border:1px solid rgba(53,216,255,.45)}.cta h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;margin:9px 0}.cta p{color:var(--muted);max-width:640px}.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}.site-footer h3{font-size:.9rem;margin-bottom:12px}.site-footer a{display:block;margin:7px 0;transition:.2s}.site-footer a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}@media(max-width:1050px){.nav-links{gap:0}.location{display:none}.hero-grid{gap:30px}.metrics{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.container{width:min(100% - 32px,var(--max))}.nav{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:12px;background:#0b1e36;border:1px solid var(--line);border-radius:17px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:14px}.nav-cta{padding:10px 12px;font-size:.8rem}.hero{padding:62px 0 55px;min-height:auto}.hero-grid,.split,.dashboard,.journey,.scenarios,.editorial,.faq,.analytics{grid-template-columns:1fr}.hero h1{font-size:3.15rem}.creator-card{margin:15px 0 0}.problem-strip,.timeline{grid-template-columns:1fr}.problem:nth-child(2){transform:none}.step{border-right:0;border-bottom:1px solid var(--line);padding-left:30px}.step:before{left:0}.metrics{grid-template-columns:repeat(2,1fr)}.update{grid-template-columns:70px 1fr}.update a{grid-column:2}.cta{padding:30px;display:block}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:480px){section{padding:62px 0}.hero h1{font-size:2.65rem}.actions .btn{width:100%}.trust{gap:15px}.metrics{grid-template-columns:1fr 1fr}.quote{min-width:285px}.footer-grid{grid-template-columns:1fr}.dashboard{padding:12px}.dash-main{padding:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: article */
:root{
  --bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);
  --panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;
  --mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;
  --line:rgba(126,190,255,.22);--radius:22px;
  --shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;
  line-height:1.68;overflow-x:hidden
}
body:before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;
  background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),
  linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);
  background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 82%)
}
::selection{background:var(--cyan);color:#061527}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto;object-fit:cover}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 44px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:20;background:rgba(7,20,38,.86);
  backdrop-filter:blur(18px);border-bottom:1px solid var(--line)
}
.nav{height:78px;display:flex;align-items:center;gap:24px;position:relative}
.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}
.brand span{color:var(--cyan)}
.nav-links{display:flex;gap:4px;align-items:center;margin-left:auto}
.nav-links a,.location{
  padding:10px 12px;border-radius:12px;color:var(--muted);
  font-size:.88rem;transition:.25s
}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}
.location{display:flex;align-items:center;gap:7px;white-space:nowrap}
.location svg{width:16px;color:var(--mint)}
.nav-cta,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:44px;border-radius:13px;padding:12px 18px;font-weight:750;
  transition:.25s;border:1px solid rgba(53,216,255,.65)
}
.nav-cta,.btn-primary{
  background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;
  box-shadow:0 0 28px rgba(53,216,255,.25)
}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,button:focus-visible{
  outline:3px solid var(--mint);outline-offset:3px
}
.menu-toggle{display:none;background:transparent;font-size:1.5rem;line-height:1}
.article-banner{
  position:relative;padding:86px 0 70px;overflow:hidden;
  background:linear-gradient(90deg,rgba(7,20,38,.97),rgba(7,20,38,.75)),
  url('/assets/images/backpic/back-4.jpg') center/cover
}
.article-banner:after{
  content:"";position:absolute;width:330px;height:330px;right:8%;top:15%;
  background:var(--violet);filter:blur(120px);opacity:.18;pointer-events:none
}
.eyebrow,.badge{
  display:inline-flex;color:var(--cyan);font-size:.76rem;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase
}
.article-banner h1{
  position:relative;z-index:1;max-width:900px;margin:17px 0 18px;
  font-size:clamp(2.35rem,5vw,4.8rem);line-height:1.05;letter-spacing:-.065em
}
.article-intro{max-width:780px;color:var(--muted);font-size:1.08rem}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:27px;color:var(--muted);font-size:.86rem}
.meta-row strong{color:var(--text);font-weight:650}
main{position:relative}
section{padding:72px 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:8px;color:var(--muted);font-size:.84rem;
  margin-bottom:28px
}
.breadcrumb a{color:var(--cyan)}
.article-layout{display:grid;grid-template-columns:minmax(0,780px) 290px;gap:54px;align-items:start}
.reading-card,.side-card,.takeaway,.note-card,.related-card,.cta{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);backdrop-filter:blur(14px)
}
.reading-card{padding:clamp(25px,4vw,48px)}
.reading-card h2{font-size:2rem;line-height:1.15;letter-spacing:-.04em;margin:34px 0 13px}
.reading-card h3{font-size:1.25rem;margin:27px 0 8px}
.reading-card p{color:#d4e1f0;margin:0 0 20px}
.reading-card ul,.reading-card ol{padding-left:24px;color:#d4e1f0}
.reading-card li{margin:9px 0}
.reading-card a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(53,216,255,.35)}
.reading-card blockquote{
  margin:30px 0;padding:22px 24px;border-left:3px solid var(--cyan);
  background:rgba(53,216,255,.07);color:var(--text);font-size:1.12rem
}
.reading-card img{border-radius:16px;margin:28px 0}
.side-card{padding:22px;position:sticky;top:102px}
.side-card h3{margin:0 0 14px;font-size:1rem}
.side-card a{display:block;padding:11px 0;color:var(--muted);border-bottom:1px solid var(--line);font-size:.9rem}
.side-card a:hover{color:var(--cyan)}
.takeaway{padding:30px;display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start}
.icon-box{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  color:#061527;background:var(--mint);font-weight:900
}
.takeaway h2,.note-card h2{font-size:1.55rem;line-height:1.15;margin:0 0 8px}
.takeaway p,.note-card p,.related-card p,.cta p{color:var(--muted);margin:0}
.note-card{padding:30px;border-color:rgba(98,230,180,.28)}
.note-card h2{color:var(--mint)}
.related-wrap{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.related-card{padding:25px;transition:.25s}
.related-card:hover{transform:translateY(-4px);border-color:rgba(53,216,255,.5)}
.related-card .badge{font-size:.68rem}
.related-card h3{font-size:1.15rem;line-height:1.3;margin:11px 0}
.cta{
  padding:42px;display:flex;align-items:center;justify-content:space-between;
  gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));
  border-color:rgba(53,216,255,.45)
}
.cta h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;margin:8px 0}
.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}
.site-footer h3{font-size:.9rem;margin:0 0 12px}
.site-footer a{display:block;margin:7px 0;transition:.2s}
.site-footer a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}
@media(max-width:1100px){
  .nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:.8rem}
  .location{display:none}.article-layout{grid-template-columns:minmax(0,1fr) 235px}
}
@media(max-width:820px){
  .container{width:min(100% - 32px,var(--max))}
  .menu-toggle{display:block;margin-left:auto}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:72px;padding:12px;
    background:#0b1e36;border:1px solid var(--line);border-radius:17px;
    flex-direction:column;align-items:stretch
  }
  .nav-links.show{display:flex}.nav-links a{padding:14px}
  .nav-cta{padding:10px 12px;font-size:.8rem}
  .article-banner{padding:62px 0 52px}
  .article-layout{grid-template-columns:1fr}
  .side-card{position:static}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .nav{height:68px;gap:12px}.brand{font-size:1.1rem}
  .article-banner h1{font-size:2.45rem}
  .article-intro{font-size:1rem}.meta-row{display:grid;gap:6px}
  section{padding:52px 0}.reading-card{padding:23px}
  .related-wrap{grid-template-columns:1fr}
  .takeaway{grid-template-columns:1fr}.cta{display:block;padding:29px}
  .cta .btn{margin-top:20px;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:25px}
}
@media(prefers-reduced-motion:reduce){
  *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}

/* roulang page: category1 */
:root{--bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);--panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;--mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;--line:rgba(126,190,255,.22);--radius:22px;--shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,20,38,.84);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;gap:22px}
.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}
.brand span{color:var(--cyan)}
.nav-links{display:flex;gap:3px;align-items:center;margin-left:auto}
.nav-links a,.location{padding:10px 12px;border-radius:12px;color:var(--muted);font-size:.88rem;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}
.location{white-space:nowrap;border:1px solid var(--line)}
.location:before{content:"⌖";color:var(--mint);margin-right:6px}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:13px;padding:13px 19px;font-weight:750;transition:.25s;border:1px solid rgba(53,216,255,.65)}
.nav-cta,.btn-primary{background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;box-shadow:0 0 28px rgba(53,216,255,.25)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:focus-visible,.nav a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.menu-toggle{display:none;background:transparent;font-size:1.5rem}
main{position:relative}
section{padding:82px 0}
.breadcrumb{padding:26px 0 0;color:var(--muted);font-size:.84rem}
.breadcrumb a{color:var(--cyan)}
.page-intro{padding:52px 0 68px;position:relative}
.intro-grid{display:grid;grid-template-columns:1fr .78fr;gap:58px;align-items:center}
.eyebrow,.badge{display:inline-flex;color:var(--cyan);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(2.6rem,5vw,5rem);line-height:1.04;letter-spacing:-.065em;margin:16px 0 20px}
h2{font-size:clamp(1.8rem,3.4vw,3rem);line-height:1.1;letter-spacing:-.045em;margin:10px 0 15px}
h3{line-height:1.25}
.intro-copy{font-size:1.08rem;color:var(--muted);max-width:680px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(15px)}
.cover-card{overflow:hidden;transform:rotate(2deg)}
.cover-card img{height:330px}
.cover-caption{padding:18px 21px;background:rgba(6,20,38,.75)}
.cover-caption strong{display:block}.cover-caption span{font-size:.84rem;color:var(--muted)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head p,.muted{color:var(--muted)}
.matrix{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.feature-panel{padding:31px;min-height:285px;background:linear-gradient(135deg,rgba(53,216,255,.14),rgba(17,43,73,.72))}
.feature-panel p{color:var(--muted);max-width:580px}
.icon-line{display:flex;gap:15px;align-items:flex-start;padding:19px 0;border-bottom:1px solid var(--line)}
.icon-line:last-child{border-bottom:0}
.icon{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:rgba(53,216,255,.12);color:var(--cyan);font-weight:800;flex:0 0 auto}
.icon-line h3{margin:0 0 4px;font-size:1rem}.icon-line p{margin:0;color:var(--muted);font-size:.9rem}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.guide-card{display:grid;grid-template-columns:145px 1fr;gap:22px;overflow:hidden}
.guide-card img{height:100%;min-height:170px}
.guide-card div{padding:24px 24px 24px 0}
.guide-card h3{margin:6px 0 8px;font-size:1.3rem}.guide-card p{color:var(--muted);font-size:.92rem}
.check-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
.checklist{padding:28px}
.checklist h3{margin-top:0}
.checklist ul{padding:0;margin:18px 0 0}
.checklist li{list-style:none;padding:13px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.checklist li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
.device-image{overflow:hidden;min-height:300px}.device-image img{height:100%}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.timeline:before{content:"";position:absolute;top:19px;left:7%;right:7%;height:1px;background:var(--line)}
.step{position:relative;padding:0 18px;text-align:center}
.step-number{position:relative;z-index:1;margin:auto;width:40px;height:40px;display:grid;place-items:center;border-radius:50%;background:var(--bg2);border:1px solid var(--cyan);color:var(--cyan);font-weight:800}
.step h3{font-size:1rem;margin:16px 0 7px}.step p{color:var(--muted);font-size:.88rem}
.notice{padding:22px 25px;border-left:3px solid var(--mint);background:rgba(98,230,180,.08);color:var(--muted);border-radius:0 15px 15px 0}
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;padding:19px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;font-weight:700}
.faq-item button span{color:var(--cyan);font-size:1.3rem}
.faq-answer{display:none;color:var(--muted);padding:0 30px 18px 0;font-size:.92rem}
.faq-item.open .faq-answer{display:block}
.cta{padding:46px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));border:1px solid rgba(53,216,255,.45)}
.cta h2{margin:8px 0}.cta p{color:var(--muted);max-width:650px}
.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}
.site-footer h3{font-size:.9rem;margin-bottom:12px}
.site-footer a{display:block;margin:7px 0;transition:.2s}.site-footer a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}
@media(max-width:1100px){.nav{gap:10px}.nav-links a{padding:9px 8px;font-size:.8rem}.intro-grid{gap:30px}}
@media(max-width:820px){.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;padding:12px;background:#0b1e36;border:1px solid var(--line);border-radius:17px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:14px}.location{display:none}.nav-cta{padding:10px 12px;font-size:.8rem}.intro-grid,.matrix,.check-layout,.faq{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(2,1fr);gap:25px}.timeline:before{display:none}.step{padding:0 8px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.container{width:min(100% - 32px,var(--max))}.page-intro{padding:40px 0 52px}h1{font-size:3rem}.cover-card{transform:none}.cover-card img{height:250px}.guide-card{grid-template-columns:1fr}.guide-card img{height:190px}.guide-card div{padding:21px}.timeline{grid-template-columns:1fr}.cta{padding:29px;display:block}.cta .actions{margin-top:20px}.footer-grid{grid-template-columns:1fr}section{padding:62px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behaviour:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{--bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);--panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;--mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;--line:rgba(126,190,255,.22);--radius:22px;--shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,20,38,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;gap:22px}
.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}
.brand span{color:var(--cyan)}
.nav-links{display:flex;gap:4px;align-items:center;margin-left:auto}
.nav-links a,.location{padding:10px 12px;border-radius:12px;color:var(--muted);font-size:.88rem;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}
.location{display:flex;align-items:center;gap:7px;white-space:nowrap}
.location i{color:var(--mint);font-style:normal}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:13px;padding:13px 19px;font-weight:750;transition:.25s;border:1px solid rgba(53,216,255,.65)}
.nav-cta,.btn-primary{background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;box-shadow:0 0 28px rgba(53,216,255,.25)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.menu-toggle{display:none;background:transparent;font-size:1.5rem}
main{position:relative}
section{padding:82px 0}
.page-banner{padding:76px 0 54px;background:linear-gradient(105deg,rgba(7,20,38,.98),rgba(11,30,54,.7)),url('/assets/images/backpic/back-4.jpg') center/cover;border-bottom:1px solid var(--line)}
.crumbs{color:var(--muted);font-size:.86rem;margin-bottom:20px}
.crumbs a{color:var(--cyan)}
.eyebrow,.badge{display:inline-flex;color:var(--cyan);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.page-banner h1{font-size:clamp(2.5rem,5vw,4.8rem);line-height:1.05;letter-spacing:-.065em;max-width:850px;margin:15px 0}
.page-banner p{max-width:740px;color:var(--muted);font-size:1.08rem}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.85rem,3.5vw,3rem);line-height:1.1;letter-spacing:-.045em;margin:10px 0 14px}
.section-head p,.muted{color:var(--muted)}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(15px)}
.index-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;padding:30px;align-items:stretch}
.index-panel img{height:100%;min-height:300px;border-radius:16px}
.signal-list{display:grid;gap:12px}
.signal{display:flex;gap:16px;align-items:flex-start;padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(4,18,34,.36)}
.signal strong{display:block;margin-bottom:4px}
.signal p{color:var(--muted);font-size:.9rem}
.signal-icon{color:var(--mint);font-size:1.2rem}
.editorial{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.featured{overflow:hidden}
.featured img{height:245px}
.featured-body{padding:26px}
.featured h3{font-size:1.5rem;line-height:1.2;margin:10px 0}
.featured p,.update p{color:var(--muted);font-size:.92rem}
.update-list{display:grid;gap:10px}
.update{padding:19px 20px;border:1px solid var(--line);border-radius:16px;background:rgba(17,43,73,.48);transition:.25s}
.update:hover{border-color:rgba(53,216,255,.65);transform:translateX(4px);background:var(--panel2)}
.update-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:6px}
.update time{color:var(--muted);font-size:.78rem}
.update a{color:var(--cyan);font-size:.82rem;font-weight:700;display:inline-block;margin-top:9px}
.empty{padding:30px;border:1px dashed var(--line);border-radius:18px;color:var(--muted)}
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:stretch}
.checklist{padding:30px}
.checklist h3{font-size:1.35rem;margin-bottom:12px}
.checklist li{list-style:none;padding:15px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.checklist li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:12px}
.note{padding:26px;background:linear-gradient(130deg,rgba(53,216,255,.13),rgba(101,119,255,.16));border:1px solid rgba(53,216,255,.35);border-radius:var(--radius)}
.note h3{font-size:1.5rem;margin-bottom:10px}
.note p{color:var(--muted)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.step{padding:24px 20px;border-top:2px solid var(--cyan);background:rgba(17,43,73,.5);border-radius:0 0 16px 16px}
.step b{color:var(--cyan);font-size:.8rem}
.step h3{font-size:1.05rem;margin:12px 0 7px}
.step p{color:var(--muted);font-size:.88rem}
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;padding:19px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;gap:20px;font-weight:700}
.faq-item button span{color:var(--cyan);font-size:1.3rem}
.faq-answer{display:none;color:var(--muted);padding:0 30px 18px 0;font-size:.92rem}
.faq-item.open .faq-answer{display:block}
.cta{padding:45px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));border:1px solid rgba(53,216,255,.45)}
.cta h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;margin:9px 0}
.cta p{color:var(--muted);max-width:650px}
.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}
.site-footer h3{font-size:.9rem;margin-bottom:12px}
.site-footer a{display:block;margin:7px 0;transition:.2s}
.site-footer a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}
@media(max-width:1100px){.nav-links{gap:0}.nav-links a{font-size:.8rem;padding:9px}.location{display:none}.timeline{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.nav{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:12px;background:#0b1e36;border:1px solid var(--line);border-radius:17px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:14px}.nav-cta{padding:10px 12px;font-size:.8rem}.page-banner{padding:58px 0 42px}section{padding:62px 0}.index-panel,.editorial,.split,.faq{grid-template-columns:1fr}.index-panel img{min-height:220px}.cta{padding:30px;display:block}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:repeat(2,1fr);gap:25px}}
@media(max-width:520px){.brand{font-size:1.1rem}.nav-cta{font-size:.72rem;padding:9px}.page-banner h1{font-size:2.55rem}.timeline{grid-template-columns:1fr}.index-panel,.checklist{padding:21px}.update-top{display:block}.update time{display:block;margin-top:5px}.footer-grid{grid-template-columns:1fr}.copyright{font-size:.74rem}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category3 */
:root{--bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);--panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;--mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;--line:rgba(126,190,255,.22);--radius:22px;--shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,20,38,.84);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;gap:22px}
.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}
.brand span{color:var(--cyan)}
.nav-links{display:flex;gap:5px;align-items:center;margin-left:auto}
.nav-links a,.location{padding:10px 13px;border-radius:12px;color:var(--muted);font-size:.9rem;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}
.location{display:flex;align-items:center;gap:7px;border:1px solid var(--line)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:13px;padding:13px 19px;font-weight:750;transition:.25s;border:1px solid rgba(53,216,255,.65)}
.nav-cta,.btn-primary{background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;box-shadow:0 0 28px rgba(53,216,255,.25)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.menu-toggle{display:none;background:transparent;font-size:1.5rem}
.page-banner{padding:74px 0 54px;background:linear-gradient(90deg,rgba(7,20,38,.96),rgba(7,20,38,.62)),url('/assets/images/backpic/back-4.jpg') center/cover;border-bottom:1px solid var(--line)}
.crumbs{color:var(--muted);font-size:.84rem;margin-bottom:22px}
.crumbs a{color:var(--cyan)}
.eyebrow,.badge{display:inline-flex;color:var(--cyan);font-size:.76rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.page-banner h1{font-size:clamp(2.5rem,5vw,4.9rem);line-height:1.05;letter-spacing:-.065em;max-width:850px;margin:15px 0}
.page-banner p{max-width:720px;color:var(--muted);font-size:1.08rem}
section{padding:78px 0}
.section-head{max-width:730px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.1;letter-spacing:-.045em;margin:10px 0 14px}
.section-head p,.card p,.note p{color:var(--muted)}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(15px)}
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}
.intro-copy{padding:34px}
.intro-copy h2{font-size:2rem;line-height:1.15;margin:0 0 14px}
.image-frame{overflow:hidden;min-height:300px;border-radius:var(--radius);border:1px solid var(--line)}
.image-frame img{height:100%;min-height:300px}
.tip-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:28px}
.card{padding:26px}
.card h3{margin:0 0 9px;font-size:1.2rem}
.tip-list{display:grid;gap:12px}
.tip-row{display:flex;gap:16px;align-items:flex-start;padding:20px;border:1px solid var(--line);border-radius:17px;background:rgba(11,30,54,.62);transition:.25s}
.tip-row:hover{transform:translateX(5px);border-color:rgba(53,216,255,.58)}
.tip-icon{width:34px;height:34px;display:grid;place-items:center;flex:none;border-radius:11px;color:#061527;background:var(--cyan);font-weight:900}
.tip-row h3{margin:0 0 4px;font-size:1.05rem}
.tip-row p{margin:0;color:var(--muted);font-size:.92rem}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.check{padding:22px;border-left:3px solid var(--mint);background:rgba(28,67,108,.42);border-radius:0 16px 16px 0}
.check strong{display:block;margin-bottom:5px}
.check span{color:var(--muted);font-size:.9rem}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{position:relative;padding:28px 22px 10px;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step:before{content:"";position:absolute;top:-8px;left:22px;width:15px;height:15px;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}
.step b{color:var(--cyan);font-size:.8rem}
.step h3{font-size:1.05rem;margin:10px 0 7px}
.step p{color:var(--muted);font-size:.88rem}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.note{padding:27px}
.note h3{margin-top:0}
.note.safe{border-color:rgba(98,230,180,.45)}
.note.alert{border-color:rgba(255,186,91,.45)}
.updates{display:grid;gap:12px}
.update{display:grid;grid-template-columns:110px 1fr auto;gap:20px;align-items:center;padding:18px 20px}
.update-date{color:var(--mint);font-size:.78rem;font-weight:800}
.update h3{margin:0 0 4px;font-size:1rem}
.update p{margin:0;color:var(--muted);font-size:.88rem}
.update a{color:var(--cyan);font-size:.85rem;font-weight:700}
.faq{display:grid;grid-template-columns:.72fr 1.28fr;gap:36px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;padding:18px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;gap:15px;font-weight:700}
.faq-item button span{color:var(--cyan);font-size:1.3rem}
.faq-answer{display:none;color:var(--muted);padding:0 30px 18px 0;font-size:.92rem}
.faq-item.open .faq-answer{display:block}
.cta{padding:44px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));border:1px solid rgba(53,216,255,.45)}
.cta h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;margin:8px 0}
.cta p{color:var(--muted);max-width:650px}
.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}
.site-footer h3{font-size:.9rem;margin-bottom:12px}
.site-footer a{display:block;margin:7px 0;transition:.2s}
.site-footer a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}
@media(max-width:1100px){.nav-links{gap:0}.location{display:none}.intro-grid,.tip-grid,.faq{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:767px){.container{width:min(100% - 32px,var(--max))}.nav{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:74px;padding:12px;background:#0b1e36;border:1px solid var(--line);border-radius:17px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:14px}.nav-cta{padding:10px 12px;font-size:.8rem}.page-banner{padding:58px 0 43px}.page-banner h1{font-size:3rem}.timeline,.comparison,.check-grid{grid-template-columns:1fr}.step{border-right:0;border-bottom:1px solid var(--line);padding-left:45px}.step:before{left:18px}.update{grid-template-columns:1fr;gap:5px}.update a{margin-top:5px}.cta{padding:29px;display:block}.cta .btn{margin-top:18px;width:100%}.footer-grid{grid-template-columns:1fr}section{padding:60px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

/* roulang page: category4 */
:root{--bg:#071426;--bg2:#0b1e36;--panel:rgba(17,43,73,.72);--panel2:rgba(28,67,108,.72);--cyan:#35d8ff;--violet:#6577ff;--mint:#62e6b4;--text:#f4f8ff;--muted:#a9bcd4;--line:rgba(126,190,255,.22);--radius:22px;--shadow:0 22px 70px rgba(0,20,55,.38);--max:1220px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,Manrope,ui-sans-serif,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(126,190,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(126,190,255,.035) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button{font:inherit;color:inherit;border:0;cursor:pointer}
.container{width:min(var(--max),calc(100% - 44px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,20,38,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;gap:20px}
.brand{font-size:1.28rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}
.brand span{color:var(--cyan)}
.nav-links{display:flex;gap:4px;align-items:center;margin-left:auto}
.nav-links a,.location{padding:10px 12px;border-radius:12px;color:var(--muted);font-size:.88rem;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(53,216,255,.1)}
.location{white-space:nowrap;border:1px solid var(--line);color:var(--mint)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:13px;padding:13px 19px;font-weight:750;transition:.25s;border:1px solid rgba(53,216,255,.65)}
.nav-cta,.btn-primary{background:linear-gradient(115deg,var(--cyan),#6aa4ff);color:#061527;box-shadow:0 0 28px rgba(53,216,255,.25)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(53,216,255,.2)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,.nav a:focus-visible,button:focus-visible{outline:3px solid var(--mint);outline-offset:3px}
.menu-toggle{display:none;background:transparent;font-size:1.5rem}
.inner-hero{padding:72px 0 55px;background:linear-gradient(105deg,rgba(7,20,38,.98),rgba(7,20,38,.68)),url('/assets/images/backpic/back-6.jpg') center/cover}
.crumb{color:var(--cyan);font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
.inner-hero h1{font-size:clamp(2.5rem,5vw,5rem);line-height:1.05;letter-spacing:-.065em;max-width:800px;margin:16px 0}
.inner-hero p{max-width:730px;color:var(--muted);font-size:1.08rem}
section{padding:78px 0}
.section-head{max-width:750px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.1;letter-spacing:-.045em;margin:9px 0 13px}
.section-head p,.muted{color:var(--muted)}
.glass{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:stretch}
.feature-image{min-height:360px;overflow:hidden;position:relative}
.feature-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,20,38,.65),transparent 55%)}
.feature-image img{height:100%;min-height:360px}
.feature-copy{padding:34px;display:flex;flex-direction:column;justify-content:center}
.badge{display:inline-flex;width:max-content;color:var(--cyan);font-size:.74rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.feature-copy h2{font-size:2rem;line-height:1.12;margin:14px 0}
.feature-copy p{color:var(--muted)}
.panel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.support-card{padding:25px;min-height:190px}
.support-card strong{display:flex;align-items:center;gap:12px;color:var(--mint);font-size:1.05rem}
.icon{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:rgba(53,216,255,.12);color:var(--cyan);font-weight:900}
.support-card h3{margin:18px 0 7px;font-size:1.15rem}
.support-card p{color:var(--muted);font-size:.92rem}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.check-panel{padding:30px}
.check-panel h3{font-size:1.4rem;margin-bottom:15px}
.check-list{list-style:none;display:grid;gap:0}
.check-list li{padding:15px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.check-list li:before{content:"✓";color:var(--mint);font-weight:900;margin-right:12px}
.notice{padding:24px;border-left:3px solid var(--mint);background:rgba(98,230,180,.08);border-radius:0 16px 16px 0;color:var(--muted)}
.notice b{display:block;color:var(--text);margin-bottom:5px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.step{position:relative;padding:12px 22px 15px 0;border-top:1px solid var(--line)}
.step:not(:last-child):after{content:"";position:absolute;right:0;top:-5px;width:10px;height:10px;border:2px solid var(--cyan);border-radius:50%;background:var(--bg)}
.step-num{color:var(--cyan);font-weight:850;font-size:.8rem}
.step h3{font-size:1.05rem;margin:10px 0 6px}
.step p{font-size:.88rem;color:var(--muted)}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare article{padding:27px}
.compare article:first-child{background:rgba(53,216,255,.08)}
.compare h3{margin-bottom:12px}
.compare ul{list-style:none;color:var(--muted);display:grid;gap:9px}
.compare li:before{content:"•";color:var(--cyan);margin-right:9px}
.faq{display:grid;grid-template-columns:.8fr 1.2fr;gap:35px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;padding:18px 0;background:transparent;text-align:left;display:flex;justify-content:space-between;gap:18px;font-weight:700}
.faq-item button span{color:var(--cyan);font-size:1.3rem}
.faq-answer{display:none;color:var(--muted);padding:0 30px 18px 0;font-size:.92rem}
.faq-item.open .faq-answer{display:block}
.cta{padding:43px;display:flex;align-items:center;justify-content:space-between;gap:25px;background:linear-gradient(110deg,rgba(53,216,255,.16),rgba(101,119,255,.22));border:1px solid rgba(53,216,255,.45)}
.cta h2{font-size:clamp(1.8rem,4vw,3rem);line-height:1.1;margin:8px 0}
.cta p{color:var(--muted);max-width:650px}
.site-footer{padding:45px 0 25px;background:#050f1d;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.site-footer p,.site-footer a{color:var(--muted);font-size:.88rem}
.site-footer h3{font-size:.9rem;margin-bottom:12px}
.site-footer a{display:block;margin:7px 0;transition:.2s}
.site-footer a:hover{color:var(--cyan)}
.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;font-size:.78rem;color:var(--muted)}
@media(max-width:1100px){.nav-links{gap:0}.nav-links a{font-size:.8rem;padding:9px 8px}.location{display:none}}
@media(max-width:800px){.container{width:min(100% - 32px,var(--max))}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;padding:12px;background:#0b1e36;border:1px solid var(--line);border-radius:17px;flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:14px}.nav-cta{padding:10px 12px;font-size:.8rem}.intro-grid,.check-grid,.faq,.compare{grid-template-columns:1fr}.timeline{grid-template-columns:1fr 1fr;gap:20px}.footer-grid{grid-template-columns:repeat(2,1fr)}.inner-hero{padding:55px 0 45px}.feature-image,.feature-image img{min-height:280px}}
@media(max-width:520px){section{padding:58px 0}.nav{height:68px;gap:10px}.brand{font-size:1.1rem}.nav-cta{font-size:.74rem;padding:9px}.inner-hero h1{font-size:2.55rem}.feature-copy,.check-panel,.support-card,.cta{padding:23px}.panel-grid,.timeline{grid-template-columns:1fr}.cta{display:block}.cta .btn{margin-top:20px;width:100%}.footer-grid{grid-template-columns:1fr}.copyright{margin-top:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}