/* roulang page: index */
:root{
  --ink:#f8f9ff;
  --muted:#a7aec4;
  --dim:#737b94;
  --bg:#090b16;
  --panel:#111526;
  --panel-2:#171c31;
  --line:rgba(255,255,255,.1);
  --violet:#8b5cf6;
  --pink:#ec4899;
  --cyan:#47d7ff;
  --gold:#f7c96d;
  --radius:22px;
  --shadow:0 22px 70px rgba(0,0,0,.32);
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(circle at 10% 0%,rgba(139,92,246,.2),transparent 34%),radial-gradient(circle at 95% 20%,rgba(71,215,255,.1),transparent 30%),#090b16}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(9,11,22,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:.3px;white-space:nowrap}
.logo-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--pink),var(--violet));box-shadow:0 8px 25px rgba(139,92,246,.35);font-size:18px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.25s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
.nav-action{padding:11px 17px;border:1px solid rgba(247,201,109,.5);border-radius:12px;color:var(--gold);font-size:14px;transition:.25s}
.nav-action:hover{background:var(--gold);color:#1a1420}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
.hero{position:relative;min-height:650px;display:flex;align-items:center;padding:80px 0 100px;overflow:hidden}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(4px);pointer-events:none}
.hero:before{width:520px;height:520px;right:-160px;top:20px;background:radial-gradient(circle,rgba(236,72,153,.28),transparent 66%)}
.hero:after{width:430px;height:430px;left:-170px;bottom:-100px;background:radial-gradient(circle,rgba(71,215,255,.18),transparent 67%)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:70px;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:18px}
.eyebrow:before{content:"";width:28px;height:2px;background:var(--pink)}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.13;letter-spacing:-3px;max-width:730px}
.hero h1 span{background:linear-gradient(100deg,#fff 20%,#d7b8ff 55%,#ff9ccf);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:18px;color:var(--muted);max-width:600px;margin:25px 0 31px}
.actions{display:flex;gap:13px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:13px;padding:13px 21px;font-weight:700;font-size:15px;transition:.25s;border:1px solid transparent}
.btn-primary{background:linear-gradient(110deg,var(--pink),var(--violet));box-shadow:0 12px 28px rgba(139,92,246,.27)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.04);color:#e7e9f4}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
.btn:focus,.nav-links a:focus,.nav-action:focus{outline:3px solid rgba(71,215,255,.45);outline-offset:3px}
.stage-art{height:420px;position:relative;display:flex;align-items:center;justify-content:center}
.stage-glow{position:absolute;width:310px;height:310px;border-radius:50%;background:radial-gradient(circle,rgba(236,72,153,.42),rgba(139,92,246,.12) 42%,transparent 70%);filter:blur(10px)}
.stage-card{position:relative;width:min(100%,390px);height:340px;border:1px solid rgba(255,255,255,.17);border-radius:32px;background:linear-gradient(145deg,rgba(31,36,64,.95),rgba(12,14,29,.94));box-shadow:var(--shadow);overflow:hidden;padding:27px}
.stage-card:before{content:"";position:absolute;inset:-40% 25% 25%;background:linear-gradient(125deg,transparent 42%,rgba(255,255,255,.18),transparent 58%);transform:rotate(12deg)}
.stage-top{display:flex;justify-content:space-between;position:relative;z-index:1;color:var(--muted);font-size:13px}
.stage-icon{margin-top:54px;position:relative;z-index:1;font-size:70px;line-height:1;text-align:center}
.stage-card h3{position:relative;z-index:1;margin-top:25px;text-align:center;font-size:26px}
.stage-card p{position:relative;z-index:1;text-align:center;color:var(--muted);font-size:13px;margin-top:5px}
.orb{position:absolute;width:14px;height:14px;border-radius:50%;background:var(--cyan);box-shadow:0 0 25px var(--cyan);animation:float 4s ease-in-out infinite}
.orb.one{top:43px;right:36px}.orb.two{bottom:53px;left:25px;background:var(--gold);box-shadow:0 0 25px var(--gold);animation-delay:1.2s}
@keyframes float{50%{transform:translateY(-14px)}}
.section{padding:92px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
.section-kicker{color:var(--pink);font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:8px}
.section h2{font-size:clamp(27px,3.5vw,42px);line-height:1.25;letter-spacing:-1px}
.section-intro{color:var(--muted);max-width:540px;font-size:15px}
.text-link{color:var(--cyan);font-size:14px;white-space:nowrap}
.text-link:hover{color:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:20px;background:rgba(255,255,255,.035);overflow:hidden}
.stat{padding:25px 28px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}.stat strong{font-size:28px;display:block;color:#fff}.stat span{color:var(--muted);font-size:13px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{border:1px solid var(--line);background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));border-radius:var(--radius);padding:25px;transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.65);box-shadow:0 18px 45px rgba(0,0,0,.24)}
.card-icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:rgba(139,92,246,.15);color:#c6a8ff;font-size:23px;margin-bottom:20px}
.card h3{font-size:19px;margin-bottom:8px}.card p{color:var(--muted);font-size:14px}
.channel-card{min-height:190px}.channel-card:nth-child(2) .card-icon{background:rgba(236,72,153,.14);color:#ff9bc9}.channel-card:nth-child(3) .card-icon{background:rgba(71,215,255,.13);color:var(--cyan)}.channel-card:nth-child(4) .card-icon{background:rgba(247,201,109,.13);color:var(--gold)}
.ribbon{display:inline-block;padding:5px 10px;border-radius:20px;background:rgba(236,72,153,.12);color:#ff9bc9;font-size:12px;margin-bottom:14px}
.feature-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}
.feature-banner{border-radius:var(--radius);padding:38px;background:linear-gradient(135deg,#281c50,#171b39 60%,#102d44);border:1px solid rgba(139,92,246,.3);min-height:300px;display:flex;flex-direction:column;justify-content:end}
.feature-banner h3{font-size:29px;line-height:1.3;margin-bottom:10px}.feature-banner p{color:#c6c9da;font-size:14px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.feature-list .card{min-height:142px}
.event-card{padding:0;overflow:hidden}.event-cover{height:150px;position:relative;background:linear-gradient(135deg,#42236d,#1d4561);display:flex;align-items:center;justify-content:center;font-size:53px}.event-cover.two{background:linear-gradient(135deg,#6b244e,#282657)}.event-cover.three{background:linear-gradient(135deg,#174e63,#342456)}.event-body{padding:21px}.event-body h3{font-size:18px;margin:8px 0}.event-body p{font-size:13px;color:var(--muted)}
.latest-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.latest-item{display:flex;align-items:center;gap:16px;padding:18px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.03);transition:.25s}
.latest-item:hover{background:rgba(139,92,246,.1);border-color:rgba(139,92,246,.45)}
.latest-no{font-size:24px;color:var(--pink);font-weight:800;font-style:italic;width:35px}.latest-item h3{font-size:15px;margin-bottom:4px}.latest-meta{font-size:12px;color:var(--dim)}
.app-panel{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:50px;padding:55px 62px;border-radius:30px;background:linear-gradient(120deg,#17244b,#261a45 58%,#331b3b);border:1px solid rgba(139,92,246,.3);overflow:hidden;position:relative}
.app-panel:after{content:"✦";position:absolute;right:70px;top:30px;font-size:180px;color:rgba(255,255,255,.04);transform:rotate(22deg)}
.app-panel h2{font-size:37px;max-width:500px}.app-panel p{color:#c0c5d9;margin:17px 0 25px;max-width:530px}.app-points{display:flex;gap:18px;flex-wrap:wrap;color:#d8d9e5;font-size:13px}.app-points span:before{content:"✓";color:var(--cyan);margin-right:7px}
.qr-area{position:relative;z-index:1;display:flex;justify-content:center}.qr-box{width:170px;height:170px;border-radius:22px;background:repeating-linear-gradient(45deg,#fff 0 5px,#1a1733 5px 10px);padding:15px;box-shadow:0 17px 38px rgba(0,0,0,.3)}.qr-inner{height:100%;background:rgba(255,255,255,.92);border-radius:10px;display:grid;place-items:center;color:#171331;font-size:12px;text-align:center;padding:15px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.split .card{min-height:220px}
.story{padding:31px;border-left:3px solid var(--pink);background:linear-gradient(90deg,rgba(236,72,153,.09),transparent);border-radius:0 18px 18px 0}.story p{font-size:18px;color:#e9e9f1}.story cite{display:block;color:var(--muted);font-size:13px;margin-top:18px;font-style:normal}
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}.faq{border:1px solid var(--line);border-radius:16px;padding:20px 22px;background:rgba(255,255,255,.03)}.faq h3{font-size:16px;margin-bottom:7px}.faq p{color:var(--muted);font-size:14px}
.cta{text-align:center;padding:82px 25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.cta h2{font-size:clamp(28px,4vw,45px);margin-bottom:13px}.cta p{color:var(--muted);margin-bottom:25px}
.site-footer{padding:50px 0 25px;background:#070912}.footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:36px;border-bottom:1px solid var(--line)}.footer-brand{max-width:330px}.footer-brand p{color:var(--muted);font-size:14px;margin-top:14px}.footer-nav{display:flex;gap:70px}.footer-nav h4{font-size:14px;margin-bottom:13px}.footer-nav a{display:block;color:var(--muted);font-size:13px;margin:7px 0}.footer-nav a:hover{color:#fff}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:var(--dim);font-size:12px}
.empty-state{padding:25px;color:var(--muted);border:1px dashed var(--line);border-radius:15px;grid-column:1/-1}
@media(max-width:1024px){.hero-grid{gap:35px}.grid-4{grid-template-columns:repeat(2,1fr)}.nav-links a{padding:9px 7px}.app-panel{padding:45px}.footer-nav{gap:35px}}
@media(max-width:768px){.container{width:min(var(--max),calc(100% - 34px))}.navbar{height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:17px;right:17px;padding:12px;background:#121629;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 15px}.nav-action{display:none}.hero{min-height:auto;padding:65px 0 72px}.hero-grid{grid-template-columns:1fr}.stage-art{height:310px}.stage-card{height:285px}.section{padding:68px 0}.stats{grid-template-columns:1fr 1fr}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.feature-wrap,.app-panel,.split{grid-template-columns:1fr}.app-panel{padding:38px 28px}.app-panel h2{font-size:31px}.footer-top{flex-direction:column}.footer-nav{flex-wrap:wrap}}
@media(max-width:520px){.logo{font-size:15px}.logo-mark{width:32px;height:32px}.hero h1{font-size:43px;letter-spacing:-2px}.hero-lead{font-size:16px}.actions .btn{width:100%}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:15px}.grid-4,.grid-3,.feature-list,.latest-list,.faq-list{grid-template-columns:1fr}.stats{border-radius:16px}.stat{padding:19px}.stat strong{font-size:24px}.stage-art{height:275px}.stage-card{height:245px;padding:20px}.stage-icon{margin-top:34px;font-size:55px}.stage-card h3{font-size:22px;margin-top:14px}.feature-banner{min-height:250px;padding:27px}.app-panel{border-radius:22px}.qr-area{margin-top:20px}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: article */
:root{
  --ink:#f8f9ff;
  --muted:#a7aec4;
  --dim:#737b94;
  --bg:#090b16;
  --panel:#111526;
  --panel-2:#171c31;
  --line:rgba(255,255,255,.1);
  --violet:#8b5cf6;
  --pink:#ec4899;
  --cyan:#47d7ff;
  --gold:#f7c96d;
  --radius:22px;
  --shadow:0 22px 70px rgba(0,0,0,.32);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  overflow-x:hidden;
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(circle at 10% 0%,rgba(139,92,246,.2),transparent 34%),
    radial-gradient(circle at 95% 20%,rgba(71,215,255,.1),transparent 30%),
    #090b16;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;cursor:pointer}
img{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 48px));margin:auto}
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  background:rgba(9,11,22,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.navbar{
  min-height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:11px;
  font-size:18px;
  font-weight:800;
  letter-spacing:.3px;
  white-space:nowrap;
}
.logo-mark{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--pink),var(--violet));
  box-shadow:0 8px 25px rgba(139,92,246,.35);
  font-size:18px;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:9px 12px;
  border-radius:10px;
  color:var(--muted);
  font-size:14px;
  transition:.25s;
}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
.nav-action{
  padding:11px 17px;
  border:1px solid rgba(247,201,109,.5);
  border-radius:12px;
  color:var(--gold);
  font-size:14px;
  transition:.25s;
  white-space:nowrap;
}
.nav-action:hover{background:var(--gold);color:#1a1420}
.menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;padding:6px}
.nav-links a:focus,.nav-action:focus,.menu-toggle:focus,.btn:focus,.article-body a:focus{
  outline:3px solid rgba(71,215,255,.45);
  outline-offset:3px;
}
.article-hero{
  position:relative;
  padding:76px 0 58px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.article-hero:before{
  content:"";
  position:absolute;
  width:520px;
  height:520px;
  top:-320px;
  right:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.28),rgba(139,92,246,.08) 43%,transparent 70%);
}
.article-hero:after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  bottom:-330px;
  left:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(71,215,255,.19),transparent 69%);
}
.breadcrumb{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:9px;
  color:var(--dim);
  font-size:14px;
  margin-bottom:30px;
}
.breadcrumb a{color:var(--muted);transition:.2s}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb i{font-style:normal;color:var(--dim)}
.article-category{
  position:relative;
  z-index:1;
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--gold);
  font-size:13px;
  font-weight:800;
  letter-spacing:1.5px;
  margin-bottom:17px;
}
.article-category:before{
  content:"";
  width:27px;
  height:2px;
  background:var(--pink);
}
.article-hero h1{
  position:relative;
  z-index:1;
  max-width:920px;
  margin:0;
  font-size:clamp(34px,5vw,62px);
  line-height:1.2;
  letter-spacing:-2px;
}
.article-summary{
  position:relative;
  z-index:1;
  max-width:850px;
  margin:23px 0 0;
  color:var(--muted);
  font-size:17px;
}
.article-meta{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px 22px;
  margin-top:28px;
  color:var(--dim);
  font-size:14px;
}
.article-meta span{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.article-meta b{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--pink);
  box-shadow:0 0 14px rgba(236,72,153,.8);
}
.section{padding:86px 0}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:34px;
  align-items:start;
}
.article-panel{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));
  box-shadow:var(--shadow);
  overflow:hidden;
}
.article-body{padding:clamp(26px,5vw,58px)}
.article-body>*:first-child{margin-top:0}
.article-body>*:last-child{margin-bottom:0}
.article-body h2,.article-body h3,.article-body h4{
  color:#fff;
  line-height:1.35;
  letter-spacing:-.5px;
  margin:1.8em 0 .7em;
}
.article-body h2{
  font-size:clamp(24px,3vw,34px);
  padding-bottom:13px;
  border-bottom:1px solid var(--line);
}
.article-body h3{font-size:clamp(20px,2.4vw,26px)}
.article-body h4{font-size:19px}
.article-body p,.article-body li{
  color:#d4d8e8;
  font-size:16px;
}
.article-body p{margin:0 0 1.25em}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.4em}
.article-body li{margin:.5em 0}
.article-body blockquote{
  margin:1.8em 0;
  padding:20px 23px;
  border-left:3px solid var(--pink);
  border-radius:0 15px 15px 0;
  background:rgba(236,72,153,.07);
  color:#e8d9f0;
}
.article-body a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(71,215,255,.4);text-underline-offset:4px}
.article-body a:hover{color:#fff}
.article-body img{
  width:auto;
  max-width:100%;
  height:auto;
  margin:28px auto;
  border-radius:16px;
  border:1px solid var(--line);
}
.article-body table{
  width:100%;
  margin:24px 0;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:14px;
  color:#dce0ee;
}
.article-body th,.article-body td{
  padding:12px 14px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  text-align:left;
}
.article-body th{background:rgba(139,92,246,.15);color:#fff}
.article-body tr:last-child td{border-bottom:0}
.article-body th:last-child,.article-body td:last-child{border-right:0}
.article-aside{position:sticky;top:102px}
.aside-card{
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(17,21,38,.82);
  margin-bottom:16px;
}
.aside-card h3{font-size:17px;margin:0 0 16px}
.aside-card p{margin:0;color:var(--muted);font-size:14px}
.aside-list{list-style:none;padding:0;margin:0}
.aside-list li{
  padding:12px 0;
  border-bottom:1px solid var(--line);
  color:#d9ddea;
  font-size:14px;
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list li:before{content:"✦";color:var(--gold);margin-right:9px}
.badge-line{
  display:inline-flex;
  align-items:center;
  border:1px solid rgba(71,215,255,.25);
  border-radius:999px;
  padding:5px 10px;
  color:var(--cyan);
  background:rgba(71,215,255,.06);
  font-size:12px;
  margin-top:16px;
}
.not-found{
  text-align:center;
  padding:72px 24px;
}
.not-found h2{margin:0 0 10px;font-size:28px}
.not-found p{margin:0 0 25px;color:var(--muted)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:13px;
  padding:13px 21px;
  font-weight:700;
  font-size:15px;
  transition:.25s;
  border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(110deg,var(--pink),var(--violet));
  box-shadow:0 12px 28px rgba(139,92,246,.27);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
.btn-ghost{
  border-color:var(--line);
  background:rgba(255,255,255,.04);
  color:#e7e9f4;
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
.section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:30px;
  margin-bottom:30px;
}
.section-kicker{
  color:var(--pink);
  font-size:13px;
  font-weight:800;
  letter-spacing:2px;
  margin-bottom:8px;
}
.section h2{
  margin:0;
  font-size:clamp(27px,3.5vw,42px);
  line-height:1.25;
  letter-spacing:-1px;
}
.section-intro{max-width:520px;color:var(--muted);font-size:15px;margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{
  min-height:215px;
  padding:27px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));
  transition:.3s;
}
.info-card:hover{
  transform:translateY(-6px);
  border-color:rgba(139,92,246,.65);
  box-shadow:0 18px 45px rgba(0,0,0,.24);
}
.info-icon{
  width:47px;
  height:47px;
  display:grid;
  place-items:center;
  margin-bottom:20px;
  border-radius:15px;
  background:rgba(139,92,246,.16);
  color:#c9adff;
  font-size:22px;
}
.info-card:nth-child(2) .info-icon{background:rgba(236,72,153,.15);color:#ff9dcb}
.info-card:nth-child(3) .info-icon{background:rgba(71,215,255,.13);color:var(--cyan)}
.info-card h3{margin:0 0 8px;font-size:19px}
.info-card p{margin:0;color:var(--muted);font-size:14px}
.stage-strip{
  position:relative;
  padding:44px;
  border:1px solid rgba(139,92,246,.35);
  border-radius:var(--radius);
  overflow:hidden;
  background:linear-gradient(120deg,#251a4b,#181c3a 56%,#102d43);
}
.stage-strip:after{
  content:"";
  position:absolute;
  width:390px;
  height:390px;
  right:-95px;
  top:-170px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(236,72,153,.38),transparent 66%);
}
.stage-strip>*{position:relative;z-index:1}
.stage-strip h2{max-width:670px}
.stage-strip p{max-width:630px;margin:15px 0 24px;color:#d6daeb}
.strip-actions{display:flex;gap:12px;flex-wrap:wrap}
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:start}
.faq-intro p{color:var(--muted);margin:15px 0 0}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:19px 0;
  color:#fff;
  text-align:left;
  background:transparent;
  font-size:16px;
  font-weight:700;
}
.faq-question span:last-child{color:var(--cyan);font-size:23px;transition:.2s}
.faq-answer{display:none;padding:0 0 18px;color:var(--muted);font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.site-footer{
  padding:66px 0 24px;
  border-top:1px solid var(--line);
  background:rgba(4,6,15,.42);
}
.footer-top{
  display:grid;
  grid-template-columns:1fr 1.35fr;
  gap:55px;
  padding-bottom:46px;
}
.footer-brand p{max-width:400px;margin:18px 0 0;color:var(--muted);font-size:14px}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.footer-nav h4{margin:0 0 14px;font-size:14px;color:#fff}
.footer-nav a{
  display:block;
  margin:8px 0;
  color:var(--muted);
  font-size:14px;
  transition:.2s;
}
.footer-nav a:hover{color:var(--cyan);transform:translateX(3px)}
.copyright{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  border-top:1px solid var(--line);
  color:var(--dim);
  font-size:13px;
}
@media(max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
  .aside-card{margin:0}
  .grid-3{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .container{width:min(var(--max),calc(100% - 32px))}
  .navbar{min-height:68px;gap:14px}
  .logo{font-size:15px}
  .logo-mark{width:33px;height:33px}
  .menu-toggle{display:block}
  .nav-links{
    display:none;
    position:absolute;
    top:68px;
    left:16px;
    right:16px;
    padding:12px;
    border:1px solid var(--line);
    border-radius:16px;
    background:#121628;
    box-shadow:var(--shadow);
    flex-direction:column;
    align-items:stretch;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 13px}
  .nav-action{display:none}
  .article-hero{padding:54px 0 44px}
  .article-hero h1{letter-spacing:-1.3px}
  .article-summary{font-size:16px}
  .section{padding:66px 0}
  .section-head{display:block;margin-bottom:26px}
  .section-intro{margin-top:13px}
  .grid-3{grid-template-columns:1fr}
  .article-aside{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:25px}
  .footer-top{grid-template-columns:1fr;gap:34px}
}
@media(max-width:520px){
  .container{width:calc(100% - 28px)}
  .logo{max-width:238px;white-space:normal;line-height:1.25}
  .article-hero{padding-top:43px}
  .article-meta{gap:8px 15px}
  .article-body{padding:25px 20px}
  .article-body p,.article-body li{font-size:15px}
  .article-body table{display:block;overflow-x:auto}
  .stage-strip{padding:29px 23px}
  .footer-nav{grid-template-columns:1fr 1fr;gap:22px}
  .footer-nav>div:last-child{grid-column:1/-1}
  .copyright{display:block}
  .copyright span{display:block;margin:5px 0}
}

/* roulang page: category2 */
:root{
      --ink:#f8f9ff;
      --muted:#a7aec4;
      --dim:#737b94;
      --bg:#090b16;
      --panel:#111526;
      --panel-2:#171c31;
      --line:rgba(255,255,255,.1);
      --violet:#8b5cf6;
      --pink:#ec4899;
      --cyan:#47d7ff;
      --gold:#f7c96d;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.32);
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;overflow-x:hidden}
    body:before{content:"";position:fixed;inset:0;z-index:-3;background:radial-gradient(circle at 8% 4%,rgba(139,92,246,.22),transparent 31%),radial-gradient(circle at 95% 18%,rgba(71,215,255,.11),transparent 28%),radial-gradient(circle at 55% 100%,rgba(236,72,153,.11),transparent 33%),#090b16}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{display:block;max-width:100%}
    h1,h2,h3,h4,p{margin-top:0}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(9,11,22,.78);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:.3px;white-space:nowrap}
    .logo-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--pink),var(--violet));box-shadow:0 8px 25px rgba(139,92,246,.35);font-size:18px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
    .nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
    .nav-action{padding:11px 17px;border:1px solid rgba(247,201,109,.5);border-radius:12px;color:var(--gold);font-size:14px;transition:.25s}
    .nav-action:hover{background:var(--gold);color:#1a1420}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px;padding:4px}
    .nav-links a:focus,.nav-action:focus,.btn:focus,.menu-toggle:focus,.faq-question:focus{outline:3px solid rgba(71,215,255,.45);outline-offset:3px}
    .inner-hero{position:relative;padding:84px 0 86px;overflow:hidden;border-bottom:1px solid var(--line)}
    .inner-hero:before{content:"";position:absolute;width:560px;height:560px;right:-150px;top:-280px;border-radius:50%;background:radial-gradient(circle,rgba(236,72,153,.3),rgba(139,92,246,.1) 43%,transparent 69%)}
    .inner-hero:after{content:"";position:absolute;left:5%;bottom:-110px;width:380px;height:190px;background:radial-gradient(ellipse,rgba(71,215,255,.14),transparent 67%);filter:blur(8px)}
    .hero-content{position:relative;z-index:1;text-align:center;max-width:850px;margin:auto}
    .breadcrumbs{display:flex;justify-content:center;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumbs a{transition:.2s}
    .breadcrumbs a:hover{color:var(--cyan)}
    .breadcrumbs i{font-style:normal;color:var(--dim)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:16px}
    .eyebrow:before,.eyebrow:after{content:"";display:block;width:25px;height:2px;background:linear-gradient(90deg,transparent,var(--pink))}
    .eyebrow:after{background:linear-gradient(90deg,var(--pink),transparent)}
    .inner-hero h1{font-size:clamp(40px,6vw,68px);line-height:1.16;letter-spacing:-2px;margin-bottom:22px}
    .inner-hero h1 span{background:linear-gradient(105deg,#fff 15%,#d9bfff 51%,#ff9acb);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-lead{max-width:700px;margin:0 auto;color:var(--muted);font-size:17px}
    .hero-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:30px}
    .tag{padding:7px 13px;border:1px solid var(--line);border-radius:99px;background:rgba(255,255,255,.045);color:#dbe0ef;font-size:13px}
    .section{padding:92px 0}
    .section-soft{background:linear-gradient(180deg,transparent,rgba(21,25,46,.5),transparent)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:32px}
    .section-kicker{color:var(--pink);font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:8px}
    .section h2{font-size:clamp(28px,3.5vw,42px);line-height:1.25;letter-spacing:-1px;margin-bottom:0}
    .section-intro{max-width:520px;color:var(--muted);font-size:15px;margin:0}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:linear-gradient(145deg,rgba(23,28,49,.95),rgba(13,16,31,.94));transition:transform .3s,border-color .3s,box-shadow .3s}
    .card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.65);box-shadow:0 18px 45px rgba(0,0,0,.24)}
    .card-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:rgba(139,92,246,.16);color:#ceafff;font-size:22px;margin-bottom:20px}
    .card:nth-child(2) .card-icon{background:rgba(236,72,153,.14);color:#ff9bc9}
    .card:nth-child(3) .card-icon{background:rgba(71,215,255,.13);color:var(--cyan)}
    .card h3{font-size:19px;margin-bottom:9px}
    .card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .spotlight-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:20px}
    .spotlight-art{min-height:420px;border:1px solid rgba(139,92,246,.35);border-radius:var(--radius);background:linear-gradient(145deg,#26194c 0%,#171a37 57%,#0d2b40 100%);position:relative;overflow:hidden;padding:34px}
    .spotlight-art:before{content:"";position:absolute;width:270px;height:570px;left:34%;top:-180px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transform:rotate(25deg);filter:blur(3px)}
    .spotlight-art:after{content:"";position:absolute;width:240px;height:240px;right:-30px;bottom:-60px;border-radius:50%;background:radial-gradient(circle,rgba(236,72,153,.75),transparent 68%);filter:blur(7px)}
    .art-label{position:relative;z-index:1;display:inline-flex;padding:7px 12px;border-radius:99px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);font-size:13px;color:#f5ddff}
    .art-title{position:absolute;z-index:1;left:34px;bottom:34px;max-width:390px}
    .art-title strong{display:block;font-size:clamp(31px,4vw,48px);line-height:1.15;letter-spacing:-2px;margin-bottom:12px}
    .art-title p{margin:0;color:#d1d6eb;font-size:15px}
    .spotlight-copy{display:flex;flex-direction:column;gap:20px}
    .highlight{flex:1;border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:rgba(17,21,38,.76)}
    .highlight small{color:var(--gold);font-weight:800;letter-spacing:1px}
    .highlight h3{font-size:22px;margin:9px 0}
    .highlight p{font-size:14px;color:var(--muted);margin:0}
    .mini-list{display:grid;gap:12px}
    .mini-item{display:flex;gap:14px;align-items:center;padding:15px;border:1px solid var(--line);border-radius:17px;background:rgba(255,255,255,.035);transition:.25s}
    .mini-item:hover{border-color:rgba(71,215,255,.45);background:rgba(71,215,255,.06)}
    .mini-no{width:31px;height:31px;flex:0 0 31px;display:grid;place-items:center;border-radius:10px;background:rgba(71,215,255,.12);color:var(--cyan);font-size:13px;font-weight:800}
    .mini-item strong{display:block;font-size:15px}
    .mini-item span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .event-band{border:1px solid rgba(247,201,109,.26);border-radius:28px;padding:32px;background:linear-gradient(105deg,rgba(86,56,84,.55),rgba(25,29,52,.85) 55%,rgba(15,51,69,.65));display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center}
    .event-date{width:92px;height:92px;border-radius:22px;display:grid;place-items:center;text-align:center;background:rgba(247,201,109,.13);border:1px solid rgba(247,201,109,.25);color:var(--gold)}
    .event-date b{font-size:31px;line-height:1}
    .event-date span{font-size:12px}
    .event-band h3{font-size:23px;margin:0 0 6px}
    .event-band p{margin:0;color:var(--muted);font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:13px;padding:13px 21px;font-weight:700;font-size:15px;transition:.25s;border:1px solid transparent;white-space:nowrap}
    .btn-primary{background:linear-gradient(110deg,var(--pink),var(--violet));box-shadow:0 12px 28px rgba(139,92,246,.27)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
    .btn-ghost{border-color:var(--line);background:rgba(255,255,255,.04);color:#e7e9f4}
    .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .timeline:before{content:"";position:absolute;left:8%;right:8%;top:25px;height:1px;background:linear-gradient(90deg,transparent,var(--violet),var(--pink),transparent)}
    .step{position:relative;text-align:center;padding:0 12px}
    .step-num{position:relative;z-index:1;width:50px;height:50px;margin:0 auto 17px;display:grid;place-items:center;border-radius:50%;background:var(--panel-2);border:1px solid rgba(139,92,246,.55);color:#d5bfff;font-weight:800}
    .step h3{font-size:17px;margin-bottom:7px}
    .step p{margin:0;color:var(--muted);font-size:13px}
    .channel-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .channel-link{display:block;min-height:172px;padding:23px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,rgba(23,28,49,.9),rgba(13,16,31,.9));transition:.3s}
    .channel-link:hover{transform:translateY(-5px);border-color:rgba(236,72,153,.65);box-shadow:0 18px 42px rgba(0,0,0,.26)}
    .channel-symbol{font-size:28px;color:var(--gold);line-height:1;margin-bottom:28px}
    .channel-link h3{font-size:18px;margin-bottom:6px}
    .channel-link p{color:var(--muted);font-size:13px;margin:0}
    .faq-wrap{max-width:880px;margin:auto}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;background:transparent;color:var(--ink);text-align:left;font-size:17px;font-weight:700}
    .faq-question span:last-child{color:var(--cyan);font-size:23px;font-weight:400;transition:.25s}
    .faq-answer{display:none;padding:0 4px 22px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg);color:var(--pink)}
    .cta-panel{position:relative;overflow:hidden;border:1px solid rgba(139,92,246,.38);border-radius:30px;padding:55px 7%;background:linear-gradient(110deg,#221847,#182145 56%,#132f47);text-align:center}
    .cta-panel:before{content:"";position:absolute;width:350px;height:350px;left:-140px;top:-150px;border-radius:50%;background:radial-gradient(circle,rgba(236,72,153,.38),transparent 67%)}
    .cta-panel:after{content:"";position:absolute;width:310px;height:310px;right:-120px;bottom:-160px;border-radius:50%;background:radial-gradient(circle,rgba(71,215,255,.25),transparent 67%)}
    .cta-panel>*{position:relative;z-index:1}
    .cta-panel h2{font-size:clamp(29px,4vw,46px);margin-bottom:14px}
    .cta-panel p{max-width:650px;margin:0 auto 26px;color:#d3d9ed}
    .cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
    .site-footer{padding:62px 0 23px;background:#080a13;border-top:1px solid var(--line)}
    .footer-top{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;padding-bottom:45px}
    .footer-brand p{max-width:400px;color:var(--muted);font-size:14px;margin:18px 0 0}
    .footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
    .footer-nav h4{font-size:14px;color:#fff;margin-bottom:14px}
    .footer-nav a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:.2s}
    .footer-nav a:hover{color:var(--cyan);transform:translateX(3px)}
    .copyright{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:var(--dim);font-size:12px}
    @media (max-width:1024px){
      .grid-4,.channel-matrix{grid-template-columns:repeat(2,1fr)}
      .spotlight-grid{grid-template-columns:1fr}
      .spotlight-art{min-height:350px}
      .timeline{grid-template-columns:repeat(2,1fr);gap:35px 16px}
      .timeline:before{display:none}
      .footer-top{gap:40px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--max))}
      .navbar{height:68px}
      .logo{font-size:15px}
      .logo-mark{width:33px;height:33px}
      .menu-toggle{display:block}
      .nav-action{display:none}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:68px;padding:12px;flex-direction:column;align-items:stretch;border:1px solid var(--line);border-radius:18px;background:rgba(17,21,38,.98);box-shadow:var(--shadow)}
      .nav-links.show{display:flex}
      .nav-links a{padding:11px 14px}
      .inner-hero{padding:68px 0 70px}
      .section{padding:68px 0}
      .section-head{display:block;margin-bottom:26px}
      .section-intro{margin-top:12px}
      .grid-3{grid-template-columns:1fr}
      .event-band{grid-template-columns:auto 1fr}
      .event-band .btn{grid-column:1/-1}
      .footer-top{grid-template-columns:1fr}
      .footer-nav{grid-template-columns:repeat(3,1fr)}
      .copyright{display:block}
      .copyright span{display:block;margin:4px 0}
    }
    @media (max-width:520px){
      .inner-hero h1{letter-spacing:-1.5px}
      .hero-lead{font-size:15px}
      .grid-4,.channel-matrix,.timeline{grid-template-columns:1fr}
      .spotlight-art{min-height:320px;padding:24px}
      .art-title{left:24px;bottom:25px}
      .art-title strong{font-size:32px}
      .card{padding:22px}
      .event-band{padding:23px;gap:16px;grid-template-columns:1fr}
      .event-date{width:76px;height:76px;border-radius:18px}
      .event-band .btn{width:100%}
      .footer-nav{grid-template-columns:1fr 1fr}
      .footer-nav>div:last-child{grid-column:1/-1}
      .cta-panel{padding:42px 22px}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category3 */
:root{
      --ink:#f8f9ff;
      --muted:#a7aec4;
      --dim:#737b94;
      --bg:#090b16;
      --panel:#111526;
      --panel-2:#171c31;
      --line:rgba(255,255,255,.1);
      --violet:#8b5cf6;
      --pink:#ec4899;
      --cyan:#47d7ff;
      --gold:#f7c96d;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.32);
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--bg);
      line-height:1.7;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      background:
        radial-gradient(circle at 8% 0%,rgba(139,92,246,.2),transparent 34%),
        radial-gradient(circle at 96% 20%,rgba(71,215,255,.1),transparent 30%),
        #090b16;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(9,11,22,.8);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .navbar{
      height:76px;display:flex;align-items:center;
      justify-content:space-between;gap:24px;
    }
    .logo{
      display:flex;align-items:center;gap:11px;
      font-size:18px;font-weight:800;letter-spacing:.3px;white-space:nowrap;
    }
    .logo-mark{
      width:36px;height:36px;display:grid;place-items:center;
      border-radius:12px;background:linear-gradient(135deg,var(--pink),var(--violet));
      box-shadow:0 8px 25px rgba(139,92,246,.35);font-size:18px;
    }
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{
      padding:9px 12px;border-radius:10px;color:var(--muted);
      font-size:14px;transition:.25s;
    }
    .nav-links a:hover,.nav-links a.active{
      color:#fff;background:rgba(255,255,255,.09);
    }
    .nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
    .nav-action{
      padding:11px 17px;border:1px solid rgba(247,201,109,.5);
      border-radius:12px;color:var(--gold);font-size:14px;transition:.25s;
    }
    .nav-action:hover{background:var(--gold);color:#1a1420}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .hero{
      position:relative;min-height:500px;display:flex;align-items:center;
      padding:78px 0 86px;overflow:hidden;
    }
    .hero:before,.hero:after{
      content:"";position:absolute;border-radius:50%;
      filter:blur(4px);pointer-events:none;
    }
    .hero:before{
      width:520px;height:520px;right:-180px;top:-80px;
      background:radial-gradient(circle,rgba(236,72,153,.28),transparent 66%);
    }
    .hero:after{
      width:430px;height:430px;left:-190px;bottom:-160px;
      background:radial-gradient(circle,rgba(71,215,255,.17),transparent 67%);
    }
    .hero-grid{
      display:grid;grid-template-columns:1.05fr .95fr;
      align-items:center;gap:70px;position:relative;z-index:1;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;color:var(--gold);
      font-size:13px;letter-spacing:2px;margin-bottom:18px;
    }
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--pink)}
    .hero h1{
      margin:0;font-size:clamp(40px,5.5vw,70px);
      line-height:1.15;letter-spacing:-3px;max-width:700px;
    }
    .hero h1 span{
      background:linear-gradient(100deg,#fff 20%,#d7b8ff 55%,#ff9ccf);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .hero-lead{font-size:18px;color:var(--muted);max-width:620px;margin:24px 0 30px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border-radius:13px;padding:13px 21px;font-weight:700;font-size:15px;
      transition:.25s;border:1px solid transparent;
    }
    .btn-primary{
      background:linear-gradient(110deg,var(--pink),var(--violet));
      box-shadow:0 12px 28px rgba(139,92,246,.27);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
    .btn-ghost{border-color:var(--line);background:rgba(255,255,255,.04);color:#e7e9f4}
    .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
    .btn:focus,.nav-links a:focus,.nav-action:focus,.menu-toggle:focus{
      outline:3px solid rgba(71,215,255,.45);outline-offset:3px;
    }
    .download-art{min-height:340px;position:relative;display:grid;place-items:center}
    .download-ring{
      position:absolute;width:330px;height:330px;border-radius:50%;
      border:1px solid rgba(236,72,153,.3);
      box-shadow:0 0 0 28px rgba(139,92,246,.04),0 0 90px rgba(139,92,246,.25);
    }
    .download-card{
      position:relative;width:min(100%,390px);padding:30px;
      border-radius:30px;border:1px solid rgba(255,255,255,.16);
      background:linear-gradient(145deg,rgba(31,36,64,.96),rgba(12,14,29,.95));
      box-shadow:var(--shadow);text-align:center;
    }
    .app-symbol{
      width:82px;height:82px;margin:0 auto 20px;border-radius:25px;
      display:grid;place-items:center;font-size:37px;font-weight:800;
      background:linear-gradient(145deg,var(--pink),var(--violet));
      box-shadow:0 16px 35px rgba(236,72,153,.28);
    }
    .download-card h3{font-size:25px;margin:0 0 7px}
    .download-card p{color:var(--muted);font-size:14px;margin:0}
    .mini-pills{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:22px}
    .mini-pills span,.badge{
      padding:6px 11px;border-radius:30px;border:1px solid var(--line);
      color:var(--muted);font-size:12px;background:rgba(255,255,255,.04);
    }
    .section{padding:88px 0}
    .section-head{
      display:flex;align-items:end;justify-content:space-between;
      gap:30px;margin-bottom:32px;
    }
    .section-kicker{color:var(--pink);font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:8px}
    .section h2{font-size:clamp(27px,3.5vw,42px);line-height:1.25;letter-spacing:-1px;margin:0}
    .section-intro{color:var(--muted);max-width:560px;font-size:15px;margin:0}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{
      border:1px solid var(--line);
      background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));
      border-radius:var(--radius);padding:25px;
      transition:.3s;position:relative;overflow:hidden;
    }
    .card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.65);box-shadow:0 18px 45px rgba(0,0,0,.24)}
    .card-icon{
      width:46px;height:46px;border-radius:15px;display:grid;place-items:center;
      background:rgba(139,92,246,.15);color:#c6a8ff;font-size:22px;margin-bottom:20px;
    }
    .card:nth-child(2) .card-icon{background:rgba(236,72,153,.14);color:#ff9bc9}
    .card:nth-child(3) .card-icon{background:rgba(71,215,255,.13);color:var(--cyan)}
    .card:nth-child(4) .card-icon{background:rgba(247,201,109,.13);color:var(--gold)}
    .card h3{font-size:19px;margin:0 0 8px}
    .card p{color:var(--muted);font-size:14px;margin:0}
    .dark-band{
      padding:72px 0;background:rgba(17,21,38,.68);
      border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    }
    .experience{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center;
    }
    .experience-copy h2{margin-bottom:18px}
    .experience-copy p{color:var(--muted);font-size:16px}
    .check-list{list-style:none;padding:0;margin:25px 0 0}
    .check-list li{display:flex;gap:12px;align-items:flex-start;color:#e9eafa;margin:13px 0;font-size:14px}
    .check-list b{color:var(--cyan);font-size:17px;line-height:1.4}
    .phone-wall{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .screen{
      min-height:180px;padding:22px;border:1px solid var(--line);
      border-radius:20px;background:linear-gradient(145deg,#1d2340,#101426);
    }
    .screen:first-child{transform:translateY(22px)}
    .screen strong{display:block;font-size:34px;color:var(--gold);margin-bottom:20px}
    .screen h4{margin:0 0 5px;font-size:17px}
    .screen p{color:var(--muted);font-size:13px;margin:0}
    .scene-card{min-height:205px}
    .scene-card .badge{display:inline-block;margin-bottom:20px;color:var(--cyan)}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
    .flow:before{
      content:"";position:absolute;top:28px;left:9%;right:9%;height:1px;
      background:linear-gradient(90deg,var(--pink),var(--violet),var(--cyan));
      opacity:.5;
    }
    .flow-step{position:relative;text-align:center;padding:0 14px}
    .flow-num{
      width:56px;height:56px;margin:0 auto 18px;display:grid;place-items:center;
      border-radius:50%;background:var(--panel-2);border:1px solid rgba(236,72,153,.6);
      color:var(--gold);font-weight:800;position:relative;z-index:1;
    }
    .flow-step h3{font-size:17px;margin:0 0 7px}
    .flow-step p{color:var(--muted);font-size:13px;margin:0}
    .feature-grid .card{min-height:190px}
    .faq-list{max-width:860px;margin:auto}
    .faq-item{
      border-bottom:1px solid var(--line);padding:21px 0;
      display:grid;grid-template-columns:35% 1fr;gap:30px;
    }
    .faq-item h3{font-size:17px;margin:0;color:#fff}
    .faq-item p{color:var(--muted);font-size:14px;margin:0}
    .cta{
      border:1px solid rgba(139,92,246,.42);border-radius:28px;
      padding:48px 55px;display:flex;align-items:center;
      justify-content:space-between;gap:30px;
      background:linear-gradient(120deg,rgba(49,28,82,.9),rgba(17,29,53,.9));
    }
    .cta h2{margin:0 0 9px;font-size:32px}
    .cta p{color:var(--muted);margin:0}
    .site-footer{padding:60px 0 25px;border-top:1px solid var(--line);background:rgba(7,9,18,.7)}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:42px}
    .footer-brand{max-width:380px}
    .footer-brand p{color:var(--muted);font-size:14px;margin:18px 0 0}
    .footer-nav{display:grid;grid-template-columns:repeat(3,150px);gap:30px}
    .footer-nav h4{font-size:14px;margin:0 0 15px;color:#fff}
    .footer-nav a{display:block;color:var(--muted);font-size:13px;margin:9px 0;transition:.2s}
    .footer-nav a:hover{color:var(--cyan)}
    .copyright{
      padding-top:20px;border-top:1px solid var(--line);display:flex;
      justify-content:space-between;gap:20px;color:var(--dim);font-size:12px;
    }
    @media(max-width:1024px){
      .hero-grid{gap:35px}
      .grid-4{grid-template-columns:repeat(2,1fr)}
      .experience{gap:30px}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 34px))}
      .navbar{height:68px}
      .menu-toggle{display:block}
      .nav-links{
        display:none;position:absolute;left:17px;right:17px;top:76px;
        padding:12px;flex-direction:column;align-items:stretch;
        background:rgba(17,21,38,.98);border:1px solid var(--line);border-radius:16px;
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:12px 15px}
      .nav-action{display:none}
      .hero{padding:65px 0 70px;min-height:auto}
      .hero-grid,.experience{grid-template-columns:1fr}
      .hero h1{letter-spacing:-2px}
      .download-art{min-height:300px}
      .section{padding:68px 0}
      .section-head{display:block}
      .section-intro{margin-top:14px}
      .grid-3{grid-template-columns:1fr}
      .flow{grid-template-columns:1fr 1fr;gap:30px}
      .flow:before{display:none}
      .faq-item{display:block}
      .faq-item h3{margin-bottom:8px}
      .cta{display:block;padding:35px 27px}
      .cta .btn{margin-top:23px}
      .footer-top{display:block}
      .footer-nav{margin-top:35px;grid-template-columns:repeat(3,1fr);gap:15px}
    }
    @media(max-width:520px){
      .logo{font-size:15px}
      .logo-mark{width:32px;height:32px}
      .hero h1{font-size:40px}
      .hero-lead{font-size:16px}
      .hero .btn{width:100%;margin-bottom:10px}
      .grid-4{grid-template-columns:1fr}
      .phone-wall{grid-template-columns:1fr}
      .screen:first-child{transform:none}
      .flow{grid-template-columns:1fr}
      .footer-nav{grid-template-columns:1fr 1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: category4 */
:root{
      --ink:#f8f9ff;
      --muted:#a7aec4;
      --dim:#737b94;
      --bg:#090b16;
      --panel:#111526;
      --panel-2:#171c31;
      --line:rgba(255,255,255,.1);
      --violet:#8b5cf6;
      --pink:#ec4899;
      --cyan:#47d7ff;
      --gold:#f7c96d;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.32);
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      background:var(--bg);
      color:var(--ink);
      line-height:1.7;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-2;
      background:
        radial-gradient(circle at 10% 0%,rgba(139,92,246,.2),transparent 34%),
        radial-gradient(circle at 95% 20%,rgba(71,215,255,.1),transparent 30%),
        #090b16;
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    img{max-width:100%;display:block}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(9,11,22,.78);
      backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .navbar{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:11px;
      font-size:18px;
      font-weight:800;
      letter-spacing:.3px;
      white-space:nowrap;
    }
    .logo-mark{
      width:36px;
      height:36px;
      display:grid;
      place-items:center;
      border-radius:12px;
      background:linear-gradient(135deg,var(--pink),var(--violet));
      box-shadow:0 8px 25px rgba(139,92,246,.35);
      font-size:18px;
    }
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{
      padding:9px 12px;
      border-radius:10px;
      color:var(--muted);
      font-size:14px;
      transition:.25s;
    }
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
    .nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
    .nav-action{
      padding:11px 17px;
      border:1px solid rgba(247,201,109,.5);
      border-radius:12px;
      color:var(--gold);
      font-size:14px;
      transition:.25s;
      white-space:nowrap;
    }
    .nav-action:hover{background:var(--gold);color:#1a1420}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .nav-links a:focus,.nav-action:focus,.btn:focus,.faq-question:focus{
      outline:3px solid rgba(71,215,255,.45);
      outline-offset:3px;
    }
    .page-hero{
      position:relative;
      overflow:hidden;
      padding:94px 0 78px;
      border-bottom:1px solid var(--line);
    }
    .page-hero:before{
      content:"";
      position:absolute;
      width:540px;
      height:540px;
      right:-170px;
      top:-220px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(236,72,153,.25),rgba(139,92,246,.11) 43%,transparent 70%);
      pointer-events:none;
    }
    .page-hero:after{
      content:"";
      position:absolute;
      width:360px;
      height:360px;
      left:-190px;
      bottom:-220px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(71,215,255,.18),transparent 68%);
      pointer-events:none;
    }
    .breadcrumb{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:9px;
      color:var(--muted);
      font-size:13px;
      margin-bottom:20px;
    }
    .breadcrumb span{color:var(--dim)}
    .breadcrumb strong{color:var(--gold);font-weight:700}
    .hero-inner{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:54px;
      align-items:end;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--gold);
      font-size:13px;
      font-weight:700;
      letter-spacing:2px;
      margin-bottom:16px;
    }
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--pink)}
    h1,h2,h3,h4,p{margin-top:0}
    .page-hero h1{
      max-width:760px;
      font-size:clamp(40px,5.5vw,68px);
      line-height:1.15;
      letter-spacing:-2.6px;
      margin-bottom:20px;
    }
    .page-hero h1 span{
      background:linear-gradient(100deg,#fff 20%,#d7b8ff 58%,#ff9ccf);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-lead{
      max-width:700px;
      color:var(--muted);
      font-size:17px;
      margin-bottom:0;
    }
    .hero-pulse{
      padding:25px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:28px;
      background:linear-gradient(145deg,rgba(27,31,57,.9),rgba(13,16,32,.9));
      box-shadow:var(--shadow);
    }
    .pulse-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:15px;
      color:var(--muted);
      font-size:13px;
      padding-bottom:18px;
      border-bottom:1px solid var(--line);
    }
    .live-dot{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:#ffabc9;
      font-weight:700;
    }
    .live-dot:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--pink);
      box-shadow:0 0 0 6px rgba(236,72,153,.12);
    }
    .pulse-feature{padding-top:20px}
    .pulse-feature small{display:block;color:var(--cyan);font-size:12px;letter-spacing:1px;margin-bottom:8px}
    .pulse-feature h2{font-size:24px;line-height:1.35;margin-bottom:9px}
    .pulse-feature p{margin:0;color:var(--muted);font-size:14px}
    .section{padding:88px 0}
    .section-soft{
      background:linear-gradient(180deg,transparent,rgba(255,255,255,.018),transparent);
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:31px;
    }
    .section-kicker{
      color:var(--pink);
      font-size:13px;
      font-weight:800;
      letter-spacing:2px;
      margin-bottom:8px;
    }
    .section h2{
      font-size:clamp(28px,3.4vw,42px);
      line-height:1.25;
      letter-spacing:-1px;
      margin-bottom:0;
    }
    .section-intro{max-width:545px;color:var(--muted);font-size:15px;margin-bottom:0}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .card{
      position:relative;
      overflow:hidden;
      padding:25px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));
      transition:.3s;
    }
    .card:hover{
      transform:translateY(-6px);
      border-color:rgba(139,92,246,.65);
      box-shadow:0 18px 45px rgba(0,0,0,.24);
    }
    .card-icon{
      width:47px;
      height:47px;
      display:grid;
      place-items:center;
      margin-bottom:19px;
      border-radius:15px;
      background:rgba(139,92,246,.15);
      color:#cdb4ff;
      font-size:22px;
    }
    .card:nth-child(2) .card-icon{background:rgba(236,72,153,.14);color:#ff9bc9}
    .card:nth-child(3) .card-icon{background:rgba(71,215,255,.13);color:var(--cyan)}
    .card:nth-child(4) .card-icon{background:rgba(247,201,109,.13);color:var(--gold)}
    .card h3{font-size:19px;margin-bottom:8px}
    .card p{margin-bottom:0;color:var(--muted);font-size:14px}
    .news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
    .news-card{
      display:flex;
      flex-direction:column;
      min-height:250px;
      padding:27px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(145deg,rgba(23,28,49,.96),rgba(11,14,28,.96));
      transition:.3s;
    }
    .news-card:hover{
      transform:translateY(-5px);
      border-color:rgba(71,215,255,.48);
      box-shadow:0 20px 42px rgba(0,0,0,.25);
    }
    .news-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:15px;
      color:var(--dim);
      font-size:12px;
      margin-bottom:18px;
    }
    .news-tag{
      display:inline-flex;
      align-items:center;
      padding:4px 10px;
      border:1px solid rgba(236,72,153,.25);
      border-radius:99px;
      color:#ffabd0;
      background:rgba(236,72,153,.08);
      white-space:nowrap;
    }
    .news-card h3{
      font-size:21px;
      line-height:1.45;
      margin-bottom:12px;
      transition:.25s;
    }
    .news-card:hover h3{color:#ddd0ff}
    .news-card p{
      color:var(--muted);
      font-size:14px;
      margin-bottom:20px;
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .read-more{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:auto;
      color:var(--cyan);
      font-size:14px;
      font-weight:700;
    }
    .read-more:after{content:"→";transition:.25s}
    .news-card:hover .read-more:after{transform:translateX(4px)}
    .empty-news{
      grid-column:1/-1;
      padding:44px 25px;
      border:1px dashed rgba(255,255,255,.18);
      border-radius:var(--radius);
      color:var(--muted);
      text-align:center;
      background:rgba(255,255,255,.02);
    }
    .topic-layout{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:20px;
      align-items:stretch;
    }
    .topic-banner{
      position:relative;
      overflow:hidden;
      min-height:350px;
      padding:38px;
      border:1px solid rgba(139,92,246,.35);
      border-radius:var(--radius);
      background:linear-gradient(135deg,#2b1d53,#171b39 58%,#102e45);
    }
    .topic-banner:before{
      content:"✦";
      position:absolute;
      right:30px;
      top:10px;
      color:rgba(255,255,255,.13);
      font-size:180px;
      line-height:1;
    }
    .topic-banner .section-kicker{position:relative;color:#ffc1dc}
    .topic-banner h2{position:relative;max-width:430px;font-size:clamp(30px,3.5vw,45px);margin-bottom:15px}
    .topic-banner p{position:relative;max-width:430px;color:#d1d4e6;margin-bottom:25px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:13px 21px;
      border:1px solid transparent;
      border-radius:13px;
      font-size:15px;
      font-weight:700;
      transition:.25s;
    }
    .btn-primary{
      background:linear-gradient(110deg,var(--pink),var(--violet));
      box-shadow:0 12px 28px rgba(139,92,246,.27);
    }
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
    .btn-ghost{
      color:#e7e9f4;
      border-color:var(--line);
      background:rgba(255,255,255,.04);
    }
    .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
    .topic-list{
      display:grid;
      gap:13px;
    }
    .topic-item{
      display:flex;
      gap:16px;
      align-items:flex-start;
      padding:21px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.025);
      transition:.25s;
    }
    .topic-item:hover{border-color:rgba(236,72,153,.45);background:rgba(236,72,153,.045)}
    .topic-num{
      flex:0 0 34px;
      width:34px;
      height:34px;
      display:grid;
      place-items:center;
      border-radius:11px;
      color:var(--gold);
      background:rgba(247,201,109,.1);
      font-size:13px;
      font-weight:800;
    }
    .topic-item h3{font-size:17px;margin-bottom:4px}
    .topic-item p{margin:0;color:var(--muted);font-size:13px}
    .timeline{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:18px;
    }
    .timeline:before{
      content:"";
      position:absolute;
      top:27px;
      left:8%;
      right:8%;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--violet),var(--pink),transparent);
    }
    .timeline-item{position:relative;padding-top:0}
    .timeline-dot{
      position:relative;
      z-index:1;
      width:55px;
      height:55px;
      display:grid;
      place-items:center;
      margin-bottom:19px;
      border:1px solid rgba(255,255,255,.16);
      border-radius:17px;
      background:var(--panel-2);
      color:var(--cyan);
      box-shadow:0 0 0 8px rgba(9,11,22,.8);
      font-size:20px;
    }
    .timeline-item h3{font-size:17px;margin-bottom:7px}
    .timeline-item p{color:var(--muted);font-size:14px;margin:0}
    .channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .channel-card{
      display:block;
      min-height:205px;
      padding:25px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));
      transition:.3s;
    }
    .channel-card:hover{
      transform:translateY(-6px);
      border-color:rgba(139,92,246,.65);
      box-shadow:0 18px 45px rgba(0,0,0,.24);
    }
    .channel-card .card-icon{margin-bottom:17px}
    .channel-card h3{font-size:19px;margin-bottom:8px}
    .channel-card p{margin:0;color:var(--muted);font-size:14px}
    .faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:54px;align-items:start}
    .faq-side p{max-width:375px;color:var(--muted);margin:18px 0 0}
    .faq-list{display:grid;gap:12px}
    .faq-item{
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:16px;
      background:rgba(255,255,255,.025);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      color:var(--ink);
      background:transparent;
      text-align:left;
      font-weight:700;
    }
    .faq-question span:last-child{color:var(--cyan);font-size:22px;transition:.25s}
    .faq-answer{
      display:none;
      padding:0 20px 18px;
      color:var(--muted);
      font-size:14px;
    }
    .faq-item.open{border-color:rgba(71,215,255,.34)}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .cta-box{
      position:relative;
      overflow:hidden;
      padding:52px 58px;
      border:1px solid rgba(236,72,153,.35);
      border-radius:30px;
      background:linear-gradient(110deg,rgba(65,30,91,.96),rgba(28,33,70,.96) 58%,rgba(17,63,83,.92));
      text-align:center;
    }
    .cta-box:before,.cta-box:after{
      content:"";
      position:absolute;
      width:270px;
      height:270px;
      border-radius:50%;
      filter:blur(2px);
      pointer-events:none;
    }
    .cta-box:before{left:-130px;bottom:-190px;background:rgba(236,72,153,.19)}
    .cta-box:after{right:-120px;top:-180px;background:rgba(71,215,255,.15)}
    .cta-box > *{position:relative;z-index:1}
    .cta-box h2{font-size:clamp(28px,3.8vw,45px);margin-bottom:12px}
    .cta-box p{max-width:660px;margin:0 auto 24px;color:#d6d9ea}
    .cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
    .site-footer{
      padding:62px 0 23px;
      border-top:1px solid var(--line);
      background:rgba(0,0,0,.14);
    }
    .footer-top{
      display:grid;
      grid-template-columns:1fr 1.15fr;
      gap:70px;
      padding-bottom:45px;
    }
    .footer-brand p{max-width:390px;margin:18px 0 0;color:var(--muted);font-size:14px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .footer-nav h4{margin:0 0 15px;color:#fff;font-size:14px}
    .footer-nav a{display:block;margin:9px 0;color:var(--muted);font-size:13px;transition:.2s}
    .footer-nav a:hover{color:var(--cyan);transform:translateX(3px)}
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:var(--dim);
      font-size:12px;
    }
    @media (max-width:1024px){
      .hero-inner,.faq-wrap{grid-template-columns:1fr}
      .hero-pulse{max-width:590px}
      .grid-4,.channel-grid{grid-template-columns:repeat(2,1fr)}
      .topic-layout{grid-template-columns:1fr}
      .footer-top{gap:38px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 32px,var(--max))}
      .navbar{height:68px}
      .menu-toggle{display:block}
      .nav-action{display:none}
      .nav-links{
        display:none;
        position:absolute;
        top:68px;
        left:16px;
        right:16px;
        padding:12px;
        flex-direction:column;
        align-items:stretch;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(17,21,38,.98);
        box-shadow:var(--shadow);
      }
      .nav-links.open{display:flex}
      .nav-links a{padding:11px 13px}
      .page-hero{padding:69px 0 60px}
      .section{padding:66px 0}
      .section-head{display:block}
      .section-intro{margin-top:14px}
      .news-grid,.grid-3{grid-template-columns:1fr}
      .timeline{grid-template-columns:repeat(2,1fr)}
      .timeline:before{display:none}
      .footer-top{grid-template-columns:1fr}
      .footer-nav{max-width:620px}
      .cta-box{padding:42px 26px}
    }
    @media (max-width:520px){
      .logo{font-size:15px}
      .logo-mark{width:33px;height:33px}
      .page-hero h1{font-size:39px;letter-spacing:-1.7px}
      .hero-lead{font-size:15px}
      .grid-4,.channel-grid,.timeline{grid-template-columns:1fr}
      .news-card,.card,.channel-card{padding:22px}
      .topic-banner{padding:28px;min-height:auto}
      .section h2{font-size:29px}
      .footer-nav{grid-template-columns:1fr 1fr}
      .copyright{display:block}
      .copyright span{display:block;margin:5px 0}
      .cta-actions{flex-direction:column}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --ink:#f8f9ff;--muted:#a7aec4;--dim:#737b94;--bg:#090b16;
      --panel:#111526;--panel-2:#171c31;--line:rgba(255,255,255,.1);
      --violet:#8b5cf6;--pink:#ec4899;--cyan:#47d7ff;--gold:#f7c96d;
      --radius:22px;--shadow:0 22px 70px rgba(0,0,0,.32);--max:1180px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;overflow-x:hidden}
    body:before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(circle at 8% 0%,rgba(139,92,246,.2),transparent 34%),radial-gradient(circle at 96% 18%,rgba(71,215,255,.1),transparent 30%),#090b16}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--max),calc(100% - 48px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(9,11,22,.8);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;white-space:nowrap}
    .logo-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--pink),var(--violet));box-shadow:0 8px 25px rgba(139,92,246,.35);font-size:18px}
    .nav-links{display:flex;align-items:center;gap:4px}
    .nav-links a{padding:9px 12px;border-radius:10px;color:var(--muted);font-size:14px;transition:.25s}
    .nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.09)}
    .nav-links a.active{box-shadow:inset 0 -2px var(--pink)}
    .nav-action{padding:11px 17px;border:1px solid rgba(247,201,109,.5);border-radius:12px;color:var(--gold);font-size:14px;transition:.25s}
    .nav-action:hover{background:var(--gold);color:#1a1420}
    .menu-toggle{display:none;background:transparent;color:#fff;font-size:25px}
    .hero{position:relative;padding:112px 0 105px;overflow:hidden}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero:before{width:520px;height:520px;right:-180px;top:-80px;background:radial-gradient(circle,rgba(236,72,153,.27),transparent 67%)}
    .hero:after{width:430px;height:430px;left:-190px;bottom:-150px;background:radial-gradient(circle,rgba(71,215,255,.16),transparent 68%)}
    .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{color:var(--gold);font-size:13px;font-weight:800;letter-spacing:2px}
    .eyebrow{display:flex;align-items:center;gap:9px;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:2px;background:var(--pink)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(42px,6vw,76px);line-height:1.13;letter-spacing:-3px;margin-bottom:24px}
    h1 span{background:linear-gradient(100deg,#fff 20%,#d7b8ff 55%,#ff9ccf);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-lead{max-width:620px;color:var(--muted);font-size:18px;margin-bottom:31px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:13px;padding:13px 21px;font-weight:700;font-size:15px;transition:.25s}
    .btn-primary{background:linear-gradient(110deg,var(--pink),var(--violet));box-shadow:0 12px 28px rgba(139,92,246,.27)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 17px 34px rgba(139,92,246,.4)}
    .btn-ghost{margin-left:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#e7e9f4}
    .btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(71,215,255,.07)}
    .btn:focus,.nav-links a:focus,.nav-action:focus{outline:3px solid rgba(71,215,255,.45);outline-offset:3px}
    .hero-art{min-height:365px;display:grid;place-items:center;position:relative}
    .light-orb{position:absolute;width:330px;height:330px;border-radius:50%;background:radial-gradient(circle,rgba(236,72,153,.42),rgba(139,92,246,.13) 43%,transparent 70%);filter:blur(9px)}
    .showcase{position:relative;width:min(100%,410px);padding:30px;border:1px solid rgba(255,255,255,.16);border-radius:30px;background:linear-gradient(145deg,rgba(31,36,64,.96),rgba(12,14,29,.94));box-shadow:var(--shadow);overflow:hidden}
    .showcase:after{content:"";position:absolute;width:180px;height:420px;right:20px;top:-130px;transform:rotate(28deg);background:linear-gradient(90deg,transparent,rgba(255,255,255,.13),transparent)}
    .showcase-top,.showcase-bottom{position:relative;z-index:1;display:flex;justify-content:space-between;color:var(--muted);font-size:13px}
    .showcase-icon{position:relative;z-index:1;text-align:center;font-size:76px;line-height:1;margin:57px 0 25px}
    .showcase h3{position:relative;z-index:1;text-align:center;font-size:28px;margin-bottom:4px}
    .showcase p{text-align:center;color:var(--muted);font-size:14px;margin:0}
    .showcase-bottom{margin-top:28px;color:var(--gold)}
    .section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-kicker{color:var(--pink);margin-bottom:8px}
    h2{font-size:clamp(28px,3.6vw,43px);line-height:1.25;letter-spacing:-1px;margin-bottom:0}
    .section-intro{max-width:550px;color:var(--muted);font-size:15px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .card{height:100%;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,rgba(23,28,49,.94),rgba(13,16,31,.94));transition:.3s}
    .card:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.65);box-shadow:0 18px 45px rgba(0,0,0,.24)}
    .card-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:15px;background:rgba(139,92,246,.15);color:#c6a8ff;font-size:23px;margin-bottom:19px}
    .card:nth-child(2) .card-icon{background:rgba(236,72,153,.14);color:#ff9bc9}
    .card:nth-child(3) .card-icon{background:rgba(71,215,255,.13);color:var(--cyan)}
    .card:nth-child(4) .card-icon{background:rgba(247,201,109,.13);color:var(--gold)}
    .card h3{font-size:19px;margin-bottom:9px}
    .card p{color:var(--muted);font-size:14px;margin-bottom:0}
    .band{padding:36px;border:1px solid rgba(139,92,246,.3);border-radius:var(--radius);background:linear-gradient(135deg,#281c50,#171b39 60%,#102d44)}
    .band-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:35px;align-items:center}
    .band h2{margin-bottom:14px}
    .band p{color:#c3c8dd;margin-bottom:0}
    .pill-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
    .pill{padding:10px 14px;border:1px solid rgba(255,255,255,.14);border-radius:999px;color:#e7e9f4;background:rgba(255,255,255,.06);font-size:14px}
    .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .scene{padding:27px;border-radius:20px;border:1px solid var(--line);background:rgba(17,21,38,.72)}
    .scene strong{display:block;font-size:20px;margin-bottom:8px}
    .scene span{color:var(--muted);font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{position:relative;padding:24px 20px;border-top:2px solid var(--violet);background:rgba(255,255,255,.035);border-radius:0 0 18px 18px}
    .step b{display:block;color:var(--gold);font-size:14px;margin-bottom:14px}
    .step h3{font-size:18px;margin-bottom:8px}
    .step p{color:var(--muted);font-size:14px;margin:0}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:start}
    .faq-wrap>div:first-child p{color:var(--muted);font-size:15px}
    .faq-item{padding:19px 0;border-bottom:1px solid var(--line)}
    .faq-item h3{font-size:17px;margin-bottom:7px}
    .faq-item p{color:var(--muted);font-size:14px;margin-bottom:0}
    .cta{padding:55px 30px;text-align:center;border-radius:28px;background:linear-gradient(120deg,rgba(236,72,153,.2),rgba(139,92,246,.2),rgba(71,215,255,.13));border:1px solid rgba(255,255,255,.13)}
    .cta h2{margin-bottom:13px}
    .cta p{color:var(--muted);margin-bottom:25px}
    .site-footer{padding:65px 0 25px;border-top:1px solid var(--line);background:rgba(5,7,15,.55)}
    .footer-top{display:flex;justify-content:space-between;gap:50px;padding-bottom:42px}
    .footer-brand{max-width:350px}
    .footer-brand p{color:var(--muted);font-size:14px;margin:18px 0 0}
    .footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:55px}
    .footer-nav h4{font-size:14px;margin-bottom:15px}
    .footer-nav a{display:block;color:var(--muted);font-size:13px;margin:8px 0;transition:.2s}
    .footer-nav a:hover{color:var(--cyan)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:21px;border-top:1px solid var(--line);color:var(--dim);font-size:12px}
    @media(max-width:1024px){.hero-layout{gap:35px}.grid-4{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(var(--max),calc(100% - 32px))}.navbar{height:68px}.nav-action{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px;flex-direction:column;align-items:stretch;background:#101323;border-bottom:1px solid var(--line)}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero{padding:78px 0 70px}.hero-layout,.band-grid,.faq-wrap{grid-template-columns:1fr}.hero-art{min-height:300px}.pill-list{justify-content:flex-start}.footer-top{flex-direction:column}.footer-nav{gap:25px}.section{padding:68px 0}}
    @media(max-width:520px){h1{font-size:42px;letter-spacing:-2px}.hero-lead{font-size:16px}.btn{width:100%}.btn-ghost{margin:12px 0 0}.grid-3,.grid-4,.scene-grid,.steps{grid-template-columns:1fr}.showcase{padding:24px}.section-head{display:block}.section-intro{margin-top:14px}.band{padding:27px 22px}.footer-nav{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}